Auxiliary supporting device for municipal engineering pipeline laying

Abstract

The invention relates to the technical field of municipal pipeline laying, in particular to an auxiliary supporting device for municipal engineering pipeline laying, which comprises a bottom plate, two symmetrical supporting mechanisms are hinged on the bottom plate, the free ends of the two supporting mechanisms are both connected with supporting wheels, a non-elastic tensioning piece is arranged between the two supporting mechanisms, and the tensioning piece is connected with the supporting wheels. The hinged ends of the two supporting mechanisms are jointly connected with an adjusting mechanism, and the adjusting mechanism enables the two supporting mechanisms to synchronously swing in the opposite directions. According to the novel scheme, the auxiliary supporting device is used for conducting auxiliary supporting on municipal pipeline laying, the two supporting mechanisms are used for supporting the pipeline, the tensioning piece is used for conducting fine adjustment on the supporting height, and the auxiliary supporting device is simple in structure, convenient to adjust and capable of rapidly supporting the pipeline and rapidly taking out the pipeline after supporting is completed.

Description

Technical Field

[0001] The invention relates to the technical field of municipal pipeline laying, and in particular to an auxiliary supporting device for laying municipal engineering pipelines. Background Art

[0002] Municipal pipeline laying is an important part of municipal engineering and an important infrastructure facility in the city. Municipal pipelines include: water supply pipelines, drainage pipelines, gas pipelines, thermal pipelines, and power cables. Although the "General Specifications for Municipal Pipelines" have many forms of pipeline laying, such as slotted laying, non-slotted laying, and overhead laying, no matter which laying method is used, multiple pipes need to be supported and connected before fixing the pipes.

[0003] Among them, the docking of two adjacent pipes during the pipeline installation process is a key construction node. After support and positioning, it is necessary to ensure coaxiality and stress-free joints to ensure no leakage at the joints. Since the pipe diameter ranges from 219mm to 630mm, there are a variety of pipe specifications, and they need to be stably coaxially aligned. For example, the diameter of the water supply and drainage pipe is usually 110mm-630mm. In order to make the pipes connect smoothly and have good sealing performance, the pipes need to be supported to a certain elevation and then connected. In the existing construction of the docking of two adjacent pipes, especially the installation of large pipes of 630mm, large machinery such as cranes or excavators are usually used to assist in lifting. For example, a method disclosed in a Chinese patent with application number CN202121789803.1 There are pipe support devices for drainage construction, but such hoisting is not stable and cannot keep the pipe in a stable horizontal state, which easily leads to stress concentration between the connection and the pipe. There is also a device for supporting the bottom of the pipe, such as the auxiliary support device for municipal water pipe construction disclosed in the Chinese patent document with application number 202210479695.0. By setting up multiple support plates, when the pipe is placed on the upper end of the support plate, the multiple support plates are simulated under the pressure of the pipe, thereby completing the positioning and support of the pipe, but the above structure is too complicated and requires electricity for lifting. In addition, when grooving and laying, it is not easy to remove and move the auxiliary support device after the pipe is installed.

[0004] Therefore, it is necessary to improve the auxiliary devices for pipeline laying, simplify the structure, streamline the power supply, etc. while ensuring the existing functions. Summary of the invention

[0005] In order to solve the above problems, an embodiment of the present invention provides an auxiliary support device for laying municipal engineering pipelines, providing a new auxiliary support device with simple structure and easy operation for auxiliary support during the installation of municipal pipelines, which can be easily disassembled and removed after the pipelines are connected and fixed.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical solutions: An auxiliary support device for laying municipal engineering pipelines comprises a base plate, on which two symmetrical support mechanisms are hinged, the free ends of the two support mechanisms are connected to support wheels, an inelastic tensioning member is provided between the two support mechanisms, and the hinged ends of the two support mechanisms are commonly connected to an adjustment mechanism, which enables the two support mechanisms to swing synchronously in opposite directions.

[0007] The present invention adjusts the directions of the two supporting mechanisms through an adjusting mechanism so that the two supporting mechanisms swing synchronously, but in opposite directions. When the pipeline is placed above the supporting wheel, the supporting wheel will make the pipeline always located directly above the central axis of the base plate. As long as the base plate of the present invention is straightened, the pipeline can be smoothly connected. The tensioning member is used to provide tension for the supporting mechanism to eliminate the tendency of the two supporting mechanisms to swing outward due to the gravity of the pipeline. At the same time, the support of the two supporting mechanisms to the pipeline can be adjusted by extending and shortening the tensioning member, which is used to adjust the height of the central axis of the pipeline to achieve coaxial adjustment of the pipeline.

[0008] Furthermore, the hinged ends of the two supporting mechanisms are each provided with a half gear ring; the adjusting mechanism is installed on the base plate, and the adjusting mechanism includes two racks and a gear, the two racks are respectively meshed with the half gear rings of the two supporting mechanisms, and the two racks are respectively meshed with both sides of the gear, and the gear enables the two racks to move synchronously in opposite directions.

[0009] The adjusting mechanism is only used to make the two supporting mechanisms swing synchronously in opposite directions without bearing other forces.

[0010] Furthermore, the base plate includes an upper plate and a lower plate, and the upper plate and the lower plate are connected via at least two linear sliding mechanisms parallel to the central axis of the base plate; they are used to bring the two pipes closer or farther away, so as to facilitate welding or socket connection of the pipes.

[0011] Furthermore, the support mechanism is a retractable structure, which is used to achieve adjustment at different heights and is suitable for auxiliary support of pipelines in various height ranges.

[0012] Furthermore, each of the support mechanisms has at least two support wheels at a free end, and all the support wheels on each support mechanism are coaxial.

[0013] When there are at least two supporting wheels on the supporting mechanism, one supporting device of the present invention can complete the support of a section of the pipeline without the need for multiple supporting devices to support together.

[0014] Furthermore, the tensioning piece is a flat belt-shaped body, and scale lines are provided on the tensioning piece.

[0015] The strip-shaped tensioning member can be arranged in order when curled, and the scale line enables the user to adjust the support device of the present invention to a better support position in the initial stage. After placing the pipeline on the support device of the present invention, only fine-tuning is required to achieve the coaxial positioning of the pipeline, and no large-range adjustment is required.

[0016] Furthermore, any one of the two supporting mechanisms is connected to one end of the tensioning member, and the other supporting mechanism is provided with a winch, and the other end of the tensioning member is wound around the winch.

[0017] Furthermore, the capstan includes a connecting frame, a sleeve and a worm, the connecting frame is connected to the supporting mechanism, the outer wall of the sleeve is connected to the end of the tensioning piece, the sleeve rotates on the connecting frame and can curl the tensioning piece, one end of the sleeve is arranged with a third tooth, the worm is rotatably connected to the supporting mechanism, and the spiral pattern on the worm is meshed with the third tooth on the sleeve to form a worm gear mechanism.

[0018] The capstan utilizes a worm gear mechanism to achieve self-locking adjustment. At the same time, the worm gear mechanism can also finely adjust the length of the tensioning member between the two supporting mechanisms to align the axis of the pipeline, facilitate connection, and save time and effort to adjust the height of the pipeline.

[0019] Furthermore, the length of the tensioning member is greater than the sum of the length of the base plate and the lengths of the two supporting mechanisms.

[0020] After completing the auxiliary support work, the tensioning piece is loosened, and the two support mechanisms of the support device of the present invention can be expanded to both sides of the bottom plate, thereby lowering the overall height, so that the support device of the present invention can be smoothly pulled out from under the pipeline and turn to support other pipelines, and can be quickly recycled.

[0021] The beneficial effects of the embodiments of the present invention are: 1. The present invention provides a new solution for auxiliary support of municipal pipeline laying, which has a simple structure and is easy to adjust, and can quickly support the pipeline and quickly remove it after support.

[0022] 2. The auxiliary support device of the present invention can utilize two support mechanisms to support the pipeline, and utilize tensioning members to fine-tune the support height. The scalability of the support mechanism can realize pipeline support in a larger height range. At the same time, the upper plate and the lower plate in the base plate are connected by a slide rail, which can support the horizontal sliding of the pipeline to achieve pipeline docking and facilitate welding or socket connection.

[0023] 3. The adjustment mechanism in the auxiliary support device of the present invention is only used to center the pipeline without bearing a large force. The support height is adjusted mainly by loosening and tightening the tensioning member. It does not require electric power assistance and is not restricted by power supply. It has good adaptability to various situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the auxiliary support device according to the first embodiment of the present invention (the cover is transparently displayed); Figure 2 yes Figure 1 A magnified view of part A; Figure 3 This is a height adjustment state diagram of the first embodiment of the present invention; Figure 4 This is a schematic structural diagram of an auxiliary support device according to a second embodiment of the present invention; Figure 5 It is a front view of the auxiliary support device of the second embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a winch according to Embodiment 4 of the present invention.

[0025] In the figure: 1, bottom plate; 2, hinge shaft; 3, supporting mechanism; 4, supporting wheel; 5, tensioning member; 6, adjusting mechanism; 7, limiting groove; 8, rack; 9, gear; 10, first tooth; 11, second tooth; 12, cover plate; 13, half gear ring; 14, upper plate; 15, lower plate; 16, slide rail; 17, capstan; 18, connecting frame; 19, bushing; 20, worm; 21, third tooth. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0027] Embodiment 1: Figure 1 and Figure 2 As shown, an auxiliary support device for laying municipal engineering pipelines includes a base plate 1, a hinge shaft 2 is arranged on each of the left and right sides of the upper surface of the base plate 1, a support mechanism 3 is connected to each of the hinge shafts 2, the two support mechanisms 3 are symmetrical on the left and right and are hinged to the base plate 1 via the hinge shafts 2, the support mechanism 3 is a frame structure formed by welding metal pipes, a support wheel 4 is connected to the upper end of the support mechanism 3, a tensioning member 5 is connected between the upper parts of the two support mechanisms 3, and an adjustment mechanism 6 is commonly connected to the lower ends of the two support mechanisms 3.

[0028] The adjusting mechanism 6 is installed on the base plate 1, and a limiting groove 7 is provided on the base plate 1. The limiting groove 7 includes two long grooves and a circular groove. The circular groove is located between the two long grooves and is connected with the two long grooves. A rotating shaft is provided at the center of the circular groove. The adjusting mechanism 6 includes two racks 8 and a gear 9. The two racks 8 are respectively limited in the long grooves of the limiting groove 7 of the base plate 1 and are in sliding contact with the base plate 1. The gear 9 is limited in the circular groove. The gear 9 is sleeved outside the rotating shaft. Each rack 8 is provided with a first tooth 10 and a second tooth 11, wherein the first tooth 10 is located on the upper surface of the rack 8, and the first teeth 10 of the two racks 8 are respectively engaged with the lower ends of the two supporting mechanisms 3, and the second teeth 11 are located on a side of the rack 8 facing the gear 9, and the second teeth 11 of the two racks 8 are respectively meshed with both sides of the gear 9, and the upper surface of the base plate 1 is provided with a cover on the adjusting mechanism The cover plate 12 above the structure 6 is used to prevent the rack 8 and the gear 9 from falling out. There is a gap between the two ends of the cover plate 12 and the two supporting mechanisms 3. The lower end of each supporting mechanism 3 is provided with a half gear ring 13 meshing with the rack 8. When the tensioning member 5 is tightened or loosened, the support wheels 4 on the two supporting mechanisms 3 approach or move away from each other. When the supporting mechanism 3 swings, the two racks 8 are driven to move. However, due to the limitation of the gear 9, the two supporting mechanisms 3 will swing synchronously, but in opposite directions, that is, it is impossible for the pipeline to deviate from the center axis of the base plate 1 directly above the center axis. In this way, as long as the center axis of the base plate 1 can be aligned up and down with the center axis of the previous pipeline, the pipeline supported by the support device of the present invention can be aligned up and down with the center axis of the previous pipeline. All that needs to be done is to adjust the pipeline height through the tensioning member 5 to make the two pipelines coaxial.

[0029] The present invention adjusts the directions of the two supporting mechanisms 3 through the adjustment mechanism 6, so that the two supporting mechanisms 3 swing in opposite directions but swing synchronously. When the pipeline is placed above the supporting wheel 4, the supporting wheel 4 will make the pipeline always be located directly above the central axis of the base plate. As long as the base plate 1 of the present invention is straightened, the pipeline can be smoothly connected. The tensioning member 5 is used to provide tension for the supporting mechanism 3 to eliminate the tendency of the two supporting mechanisms 3 to swing outward due to the gravity of the pipeline. At the same time, the support of the two supporting mechanisms 3 to the pipeline can be adjusted by the extension and shortening of the tensioning member 5, which is used to adjust the height of the central axis of the pipeline and realize the coaxial adjustment of the pipeline.

[0030] The use principle of the present invention is as follows: before use, tighten the tensioning member 5 of the present invention first, so that the support wheels 4 on the two support mechanisms 3 are close to each other, then lay a support body under the pipeline, place the support device of the present invention above the support body, so that the elevation of the two support wheels 4 is close to the elevation of the lower end of the installed pipeline, place the pipeline above the support device of the present invention, and the support wheels 4 on the two support mechanisms 3 support the pipeline, slowly release the tensioning member 5, and the support wheels 4 on the two support mechanisms 3 slide along the outer wall of the pipeline and slowly move away. At this time, the support points of the support wheels 4 on the pipeline are away from each other, and the pipeline descends. The state is as follows: Figure 3 As shown, fine adjustment of the pipeline height can be achieved, and the pipeline height can be raised or lowered to a quarter of the pipeline diameter. It is for this reason that the present invention is only suitable for auxiliary support of pipelines with a diameter greater than 210 mm in municipal engineering, and has poor application effect on small diameter pipelines.

[0031] Embodiment 2: Embodiment 1 still has the problem that the pipeline cannot be moved and docked after being placed, so this embodiment improves Embodiment 1: like Figure 4 As shown, the base plate 1 includes an upper plate 14 and a lower plate 15, and the upper plate 14 and the lower plate 15 are the same in shape and size and are opposite to each other. In this embodiment, the upper plate 14 and the lower plate 15 are both rectangular plates, so that the present invention can be stably placed on a support body. The upper plate 14 and the lower plate 15 are connected by two mutually parallel slide rails 16. The slider of the slide rail 16 is connected to the upper plate 14, and the slide rod is connected to the lower plate 15. The upper plate 14 can slide back and forth on the lower plate 15 to make the two pipes close to or away from each other, which is convenient for welding or socket connection of the pipes.

[0032] Embodiment 3: When municipal pipelines are laid, the installation height is usually low. However, for non-buried pipelines, there are many situations for the installation height. When encountering pipelines with higher installation heights, it is only necessary to increase the height of the support body. In field construction, a platform is usually piled up with soil. However, such operation is not only unstable, but also prone to other hidden dangers due to platform stability problems. Therefore, it is necessary to improve the second embodiment: like Figure 5As shown, the support mechanism 3 is a telescopic structure, which has a variety of implementation methods in the prior art, and there are a variety of mechanisms for positioning after extension or shortening in the prior art, including two or more telescopic rods or multiple rod bodies having multi-stage connecting holes and fastened with bolts, which are nested and connected like telescopic cylinders, telescopic ladders and other mechanisms. They can all adjust the extension or shortening of the support rod and can maintain the length after extension or shortening. Therefore, this embodiment will not be repeated. The telescopic structure of the support mechanism is used to achieve adjustment of different heights, adapt to auxiliary support of pipelines in a variety of height ranges, and at the same time, the setting of the support body can be cancelled to reduce the construction process.

[0033] Each of the support mechanisms 3 has at least two support wheels 4 at the upper end, and all the support wheels 4 on each support mechanism 3 are coaxial. The diameter of the support wheel 4 is at least greater than the thickness of the support mechanism 3. Considering that most municipal pipelines are 6 meters or 12 meters long, in order to enable the pipeline to be stably supported, the support width of multiple support wheels 4 (i.e., the supported length of the pipeline) should not be less than 1m.

[0034] When each supporting mechanism 3 has at least two supporting wheels 4, one supporting device of the present invention can complete the support of a section of pipeline without the need for multiple supporting devices to support together, thereby saving costs.

[0035] Embodiment 4: The tensioning member 5 is a flat belt-shaped body, such as a nylon sling or a steel chain belt. The tensioning member 5 is provided with scale lines, and the support mechanism 3 is provided with a rope threading hole. The tensioning member 5 passes through the rope threading hole to prevent the tensioning member 5 from moving, thereby ensuring the stability of the tensioning member 5 between the two support mechanisms 3.

[0036] The upper part of any one of the two supporting mechanisms 3 is connected to one end of the tensioning member 5 , and the other supporting mechanism 3 is provided with a capstan 17 , and the other end of the tensioning member 5 is wound around the capstan 17 .

[0037] like Figure 6 As shown, the capstan 17 includes a connecting frame 18, a sleeve 19 and a worm 20. The connecting frame 18 is connected to the supporting mechanism 3 in an "n" shape. The outer wall of the sleeve 19 is connected to the end of the tensioning member 5. The sleeve 19 rotates on the connecting frame 18 and can curl the tensioning member 5. A third tooth 21 is arranged at one end of the sleeve 19. The worm 20 is rotatably connected to the sleeve 19. The spiral pattern on the worm 20 meshes with the third tooth 21 on the sleeve 19 to form a worm gear mechanism.

[0038] The capstan 17 utilizes a worm gear mechanism to achieve self-locking of the adjustment, and the worm gear mechanism can also perform fine adjustment. By utilizing the capstan 17 to adjust the tensioning member 5, the height of the pipeline can be adjusted in a time-saving and labor-saving manner to align the axis of the pipeline for easy connection.

[0039] The length of the tensioning member 5 is greater than the sum of the length of the base plate 1 and the length of the two supporting mechanisms 3 .

[0040] After completing the auxiliary support work, the two support mechanisms 3 of the support device of the present invention can be unfolded to both sides of the base plate 1, thereby lowering the overall height, so that the support device of the present invention can be smoothly pulled out from under the pipeline and turn to support other pipelines, and can be quickly recycled.

[0041] It should be noted that in the description of the present invention, the terms "center, up, down, left, right, vertical, horizontal, inside, outside" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second, third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0043] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An auxiliary support device for laying municipal engineering pipelines, characterized in that: The invention comprises a base plate (1), two symmetrical support mechanisms (3) are hingedly connected to the base plate (1), the free ends of the two support mechanisms (3) are connected to support wheels (4), an inelastic tensioning member (5) is provided between the two support mechanisms (3), and the hinged ends of the two support mechanisms (3) are commonly connected to an adjustment mechanism (6), and the adjustment mechanism (6) enables the two support mechanisms (3) to swing synchronously in opposite directions.

2. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: The hinged ends of the two support mechanisms (3) are each provided with a half gear ring (13); the adjustment mechanism (6) is mounted on the base plate (1), and the adjustment mechanism (6) comprises two racks (8) and a gear (9); the two racks (8) are respectively meshed with the half gear rings (13) of the two support mechanisms (3); the two racks (8) are respectively meshed with the two sides of the gear (9); the gear (9) enables the two racks (8) to move synchronously in opposite directions.

3. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: The bottom plate (1) comprises an upper plate (14) and a lower plate (15), wherein the upper plate (14) and the lower plate (15) are connected via at least two linear sliding mechanisms parallel to the central axis of the bottom plate (1).

4. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: The supporting mechanism (3) is a retractable structure.

5. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: Each of the support mechanisms (3) has at least two support wheels (4) at the free end, and all the support wheels (4) on each support mechanism (3) are coaxial.

6. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: The tensioning piece (5) is a flat belt-shaped body, and scale lines are provided on the tensioning piece (5).

7. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: Any one of the two supporting mechanisms (3) is connected to one end of the tensioning member (5), and the other supporting mechanism (3) is provided with a winch (17), and the other end of the tensioning member (5) is wound around the winch (17).

8. The auxiliary support device for laying municipal engineering pipelines according to claim 7, characterized in that: The capstan (17) comprises a connecting frame (18), a shaft sleeve (19) and a worm (20); the connecting frame (18) is connected to the supporting mechanism (3); the outer wall of the shaft sleeve (19) is connected to the end of the tensioning member (5); the shaft sleeve (19) rotates on the connecting frame (18) and is capable of curling the tensioning member (5); a third tooth (21) is arranged at one end of the shaft sleeve (19); the worm (20) is rotatably connected to the supporting mechanism (3); the spiral pattern on the worm (20) meshes with the third tooth (21) on the shaft sleeve (19) to form a worm gear mechanism.

9. The auxiliary support device for laying municipal engineering pipelines according to claim 1, characterized in that: The length of the tensioning member (5) is greater than the sum of the length of the base plate (1) and the length of the two supporting mechanisms (3).

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