Underground pipeline laying device

Abstract

The utility model relates to the technical field of pipeline laying, in particular to an underground pipeline laying device which comprises a bottom frame, a front wheel installation space and a rear wheel installation space are arranged on the front side and the rear side of the bottom frame respectively, a through opening is formed in the middle of the bottom frame, a front guide wheel set is installed in the front wheel installation space, and a rear guide wheel set is installed in the rear wheel installation space. Rear guide wheel sets are installed in the wheels, and a pipeline storage unit is installed at the position, at the through opening, of the upper portion of the middle of the bottom frame. When the underground pipeline laying device is used for laying a pipeline, the underground pipeline laying device is matched with external traction equipment to serve as power, and the underground pipeline laying device can stably move in the extending direction of the current pipeline laying groove under the action of the front guide wheel set and the rear guide wheel set; in the shifting process, the rope winding barrel of the pipeline storage unit can be effectively driven to rotate by means of rotation of the middle wheel and the belt transmission assembly, and therefore the purpose of lowering the pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline laying, in particular to an underground pipeline laying device. Background Art

[0002] During the construction process of laying underground plastic pipelines, appropriate technology and equipment should be used to excavate trenches, and then the pipelines are laid inside the excavated trenches and backfilled after the pipeline laying is completed.

[0003] At present, when laying plastic pipelines, a pipeline laying traction device such as that disclosed in the patent document with patent publication number CN216666666U is often used. Its main structure includes a bracket, on which a first horizontally arranged support shaft is provided, and at each end of the first support shaft, a second inclined support shaft is fixed, and a support sleeve is sleeved on the first support shaft and the second support shaft, and the support sleeve can rotate on the first support shaft and the second support shaft.

[0004] It can be seen from the records of existing pipeline laying traction devices that when working, it mainly lays the pipeline on the supporting sleeve to achieve the process of dragging and laying the pipeline, so that the pipeline does not generate friction with the ground, thereby reducing the wear of the pipeline; however, this auxiliary laying structure needs to cooperate with the movement of an external laying vehicle in the process of following the pipeline, and the overall flexibility during the operation is poor, and it is impossible to achieve the purpose of quickly coordinating with the pulling force to achieve smooth laying.

[0005] To this end, the utility model optimizes and improves the problems existing in the pipeline laying process in the prior art, and hereby proposes an underground pipeline laying device to better solve the problems existing in the prior art. Utility Model Content

[0006] The utility model is to solve one of the above-mentioned technical problems, and the technical solution adopted is: an underground pipeline laying device, the underground pipeline laying device is placed above a pipeline laying groove excavated underground, the underground pipeline laying device includes a base frame arranged above the pipeline laying groove, a front wheel installation space and a rear wheel installation space are respectively arranged on the front and rear sides of the base frame, a through opening is arranged in the middle of the base frame, a front guide wheel group is installed inside the front wheel installation space, a rear guide wheel group is installed inside the wheel, and a pipeline storage unit is installed above the middle of the base frame at the position of the through opening, and the free end of the pipeline to be laid wound on the pipeline storage unit bypasses the rear guide wheel group backwards and is laid in the pipeline laying groove.

[0007] In any of the above schemes, preferably, the front guide wheel group includes a horizontally arranged front wheel axle, the inner and outer ends of the front wheel axle respectively movably pass through the through holes on the side wall of the chassis at the corresponding position of the front wheel installation space and extend to the outside thereof to be coaxially fixedly connected with a front wheel, and the bottom of the front wheel is supported on the ground on one side of the pipeline laying groove.

[0008] In any of the above schemes, preferably, the rear guide wheel group includes a horizontally arranged rear wheel axle, the inner and outer ends of the rear wheel axle respectively movably pass through the through holes on the side wall of the chassis at the corresponding position of the rear wheel installation space and extend to the outside thereof to be coaxially fixedly connected with a rear wheel, the bottom of the rear wheel is supported on the ground on one side of the pipeline laying groove, and a guide sleeve is movably sleeved on the outer side wall of the rear wheel axle inside the rear wheel installation space, and the inner cavity of the guide sleeve is clearance-matched with the outer side wall of the rear wheel axle.

[0009] In any of the above schemes, it is preferred that the inner cavity surface of the guide tube sleeve and the outer side wall of the rear wheel axle are both polished smooth curved surfaces.

[0010] In any of the above schemes, it is preferred that the pipeline storage unit includes bearing seats fixedly mounted on the top of the chassis on both sides of the through opening, a rope drum is arranged between the two bearing seats, two ends of the central axis of the rope drum are movably extended to the outside of the corresponding bearing seats, and belt transmission assemblies are symmetrically installed at the two outer ends of the central axis, and the lower end of each belt transmission assembly is installed on the outer side wall of the middle wheel axle inside the through opening, the inner and outer ends of the middle wheel axle are movably extended to the outside of the through opening, and the middle wheels are coaxially fixedly connected at both ends of the middle wheel axle, the bottom of the middle wheel is supported on the ground on one side of the pipeline laying groove, a pipeline is wound on the rope drum, the inner end of the pipeline is fixed on the rope drum, and the free end of the pipeline passes backward around the top of the guide sleeve and is laid inside the pipeline laying groove by its own weight.

[0011] In any of the above schemes, it is preferred that the belt drive assembly includes an upper pulley coaxially fixedly mounted on the outer end of the central shaft, a lower pulley coaxially fixedly connected to the outer side wall of the middle wheel axle directly below the upper pulley, and a transmission belt is cooperatively installed between the upper pulley and the lower pulley.

[0012] In any of the above schemes, preferably, a supporting guide component is installed on the top of the chassis between the through opening and the rear wheel installation space, and the top of the supporting guide component is used to support the pipeline to be laid passing thereover.

[0013] In any of the above schemes, it is preferred that the supporting guide component includes horizontally arranged guide rollers, both ends of which are movably extended to the outside of the seats at corresponding positions through end shafts, and the bottom of each seat is fixedly mounted on the top of the base frame.

[0014] In any of the above schemes, preferably, a rigid traction frame is fixedly installed on the top of the chassis on the front side of the through opening, and the front end of the rigid traction frame extends to the front side of the front wheel axle and is used to connect and cooperate with external traction equipment.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The underground pipeline laying device designed in the utility model cooperates with external traction equipment as power when laying the pipeline, and can realize smooth displacement along the extension direction of the current pipeline laying groove under the action of the front guide wheel group and the rear guide wheel group. In the process of displacement, it can effectively rely on the rotation of the middle wheel and the belt drive assembly to drive the rope drum of the pipeline storage unit to rotate, thereby achieving the purpose of lowering the pipeline. Controlling the traction speed can indirectly control the speed below the pipeline.

[0017] 2. During the whole process of the forward movement of the equipment, the pipeline is lowered to the bottom and laid in the pipeline laying groove by relying on its own weight. When laying, manual assistance can be used as needed.

[0018] 3. In the process of lower flexible pipeline, the pipeline can effectively ensure the smoothness of its backward movement through the support guide components and the guide sleeve during the backward guidance process. At the same time, when encountering resistance, the pipeline can be pulled backward intermittently by humans to ensure the normal lowering of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a side structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic cross-sectional structure diagram of the central elevation of the pipeline laying groove of the utility model.

[0022] Figure 3 It is a schematic diagram of the end structure of the utility model for laying a groove section along a pipeline.

[0023] In the figure, 1, pipeline laying groove; 2, ground; 3, chassis; 301, rear wheel installation space; 302, front wheel installation space; 303, through opening; 4, pipeline to be laid; 5, rear wheel axle; 6, middle wheel axle; 7, front wheel axle; 8, rear wheel; 9, middle wheel; 10, front wheel; 11, guide sleeve; 12, lower pulley; 13, transmission belt; 14, center axis; 15, bearing seat; 16, upper pulley; 17, rope drum; 18, rigid traction frame; 19, guide roller; 20, stand; among them, the arrow indicates the traction direction of the traction force. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 3 as shown in .

[0025] Embodiment 1: An underground pipeline laying device, which is placed above a pipeline laying groove 1 excavated underground, and includes a base frame 3 arranged above the pipeline laying groove 1, and a front wheel 1110 installation space 302 and a rear wheel 8 installation space 301 are respectively arranged on the front and rear sides of the base frame 3, and a through opening 303 is arranged in the middle of the base frame 3, a front guide wheel group is installed inside the front wheel 1110 installation space 302, and a rear guide wheel group is installed inside the wheel, and a pipeline storage unit is installed above the middle of the base frame 3 at the position of the through opening 303, and the free end of the pipeline 4 to be laid wound on the pipeline storage unit bypasses the rear guide wheel group backwards and is laid in the pipeline laying groove 1.

[0026] In any of the above schemes, it is preferred that the pipeline storage unit includes bearing seats 15 fixedly mounted on the top of the base frame 3 on both sides of the through opening 303, respectively, a rope drum 17 is arranged between the two bearing seats 15, both ends of the central axis 14 of the rope drum 17 are movably extended to the outside of the corresponding bearing seat 15, and belt transmission components are symmetrically installed at the two outer ends of the central axis 14, and the lower end of each belt transmission component is installed on the outer side wall of the middle wheel axle 6 inside the through opening 303, and the inner and outer ends of the middle wheel axle 6 are movably extended to the outside of the through opening 303, and the middle wheels 9 are coaxially fixedly connected to the two ends of the middle wheel axle 6, respectively, and the bottom of the middle wheel 9 is supported on the ground 2 on one side of the pipeline laying groove 1, and a pipeline is wound on the rope drum 17, and the inner end of the pipeline is fixed on the rope drum 17, and the free end of the pipeline passes around the top of the guide sleeve backward and is laid inside the pipeline laying groove 1 by its own weight. The pipeline storage unit is in a passive operation state as a whole, and it relies on the bearing seats 15 on both sides of the rope drum 17 for support. When the middle wheel 9 rotates, it will drive the middle wheel shaft 6 fixed to it to rotate. When the middle wheel shaft 6 rotates, it will drive the belt drive components fixed at both ends to operate. During the operation of the belt drive component, it can drive the central axis 14 of the corresponding rope drum 17 to operate, and finally drive the rope drum 17 to rotate, thereby realizing the lowering of the pipeline.

[0027] In any of the above schemes, it is preferred that the belt transmission assembly includes an upper pulley 16 coaxially fixedly mounted on the outer end of the central shaft 14, a lower pulley 12 is coaxially fixedly connected to the outer side wall of the middle wheel shaft 6 directly below the upper pulley 16, and a transmission belt 13 is installed between the upper pulley 16 and the lower pulley 12. The lower pulley 12 of the belt transmission assembly is used to input power, and when the lower pulley 12 rotates, the power is transmitted to the central shaft 14 by the transmission belt 13, thereby driving the rope drum 17 to rotate; synchronously operating belt transmission assemblies are arranged on both sides, which can drive the stability of the entire rope drum 17 during operation.

[0028] In any of the above schemes, preferably, a rigid traction frame 18 is fixedly mounted on the top of the bottom frame 3 at the front side of the through opening 303, and the front end of the rigid traction frame 18 extends to the front side of the front wheel axle 7 and is used to connect with an external traction device. The entire device itself has no power, and when in use, the rigid traction frame 18 needs to be used in conjunction with an external traction device, and the rigid traction frame 18 can ensure the stability of traction when cooperating with the traction device.

[0029] Embodiment 2: An underground pipeline laying device, which is placed above a pipeline laying trench 1 excavated underground, and comprises a base frame 3 arranged above the pipeline laying trench 1, and a front wheel 1110 installation space 302 and a rear wheel 8 installation space 301 are respectively arranged on the front and rear sides of the base frame 3, and a through opening 303 is arranged in the middle of the base frame 3, a front guide wheel group is installed inside the front wheel 1110 installation space 302, and a rear guide wheel group is installed inside the wheel, and a pipeline storage unit is installed above the middle of the base frame 3 at the position of the through opening 303, and the free end of the pipeline 4 to be laid wound on the pipeline storage unit bypasses the rear guide wheel group backwards and is laid in the pipeline laying trench 1. The underground pipeline laying device in the present design needs to be connected to the external traction equipment through the rigid traction frame 18 in advance when working. When the traction equipment is running, it can drive the corresponding front guide wheel group, the rear guide wheel group and the middle wheel 9 in the middle to run synchronously. During the operation of the middle wheel 9, it can drive the corresponding pipeline storage unit to operate. During the operation of the pipeline storage unit, the pipeline wrapped thereon will be continuously lowered, and the pipeline will be pre-pulled with the external force from the rear to ensure that the pipeline in the initial state can be smoothly dropped into the corresponding pipeline laying groove 1, thereby completing the rapid laying of the pipeline.

[0030] In any of the above schemes, it is preferred that the front guide wheel group includes a horizontally arranged front wheel axle 7, and the inner and outer ends of the front wheel axle 7 are respectively movable through the through holes on the side wall of the base frame 3 at the corresponding position of the front wheel 1110 installation space 302 and extend to the outside thereof to be coaxially fixedly connected with a front wheel 1110, and the bottom of the front wheel 1110 is supported on the ground 2 on one side of the pipeline laying groove 1.

[0031] In any of the above schemes, it is preferred that the rear guide wheel group includes a horizontally arranged rear wheel axle 5, and the inner and outer ends of the rear wheel axle 5 respectively movably pass through the through holes on the side wall of the chassis 3 at the corresponding position of the rear wheel 8 installation space 301 and extend to the outside thereof to be coaxially fixedly connected with a rear wheel 8, and the bottom of the rear wheel 8 is supported on the ground 2 on one side of the pipeline laying groove 1, and a guide sleeve is movably sleeved on the outer side wall of the rear wheel axle 5 inside the rear wheel 8 installation space 301, and the inner cavity of the guide sleeve is clearance-matched with the outer side wall of the rear wheel axle 5.

[0032] The front wheel axle 7 in the front guide wheel group can effectively cooperate with the traction force of the external traction equipment and the friction force between the front wheel 1110 and the ground 2 to complete the forward rotation, thereby realizing forward traction of the entire chassis 3; in addition, during the movement of the front wheel 1110, cooperating with the operation of the rear wheel 8 can ensure the stability of the entire equipment during operation.

[0033] In any of the above schemes, it is preferred that the inner cavity surface of the guide tube sleeve and the outer side wall of the rear wheel axle 5 are both polished smooth curved surfaces.

[0034] The guide sleeve and the rear wheel axle 5 are matched with each other by using a curved surface with a smooth inner surface, which can effectively ensure the smoothness and stability of the guide sleeve during rotation.

[0035] In any of the above schemes, it is preferred that the pipeline storage unit includes bearing seats 15 fixedly mounted on the top of the base frame 3 on both sides of the through opening 303, respectively, a rope drum 17 is arranged between the two bearing seats 15, both ends of the central axis 14 of the rope drum 17 are movably extended to the outside of the corresponding bearing seat 15, and belt transmission components are symmetrically installed at the two outer ends of the central axis 14, and the lower end of each belt transmission component is installed on the outer side wall of the middle wheel axle 6 inside the through opening 303, and the inner and outer ends of the middle wheel axle 6 are movably extended to the outside of the through opening 303, and the middle wheels 9 are coaxially fixedly connected to the two ends of the middle wheel axle 6, respectively, and the bottom of the middle wheel 9 is supported on the ground 2 on one side of the pipeline laying groove 1, and a pipeline is wound on the rope drum 17, and the inner end of the pipeline is fixed on the rope drum 17, and the free end of the pipeline passes around the top of the guide sleeve backward and is laid inside the pipeline laying groove 1 by its own weight.

[0036] The pipeline storage unit in the utility model is in a passive operation state as a whole, and it relies on the bearing seats 15 on both sides of the rope drum 17 for support. When the middle wheel 9 rotates, it will drive the middle wheel shaft 6 fixed to it to rotate. When the middle wheel shaft 6 rotates, it will drive the belt drive components fixed at both ends to operate. During the operation of the belt drive component, it can drive the central axis 14 of the corresponding rope drum 17 to operate, and finally drive the rope drum 17 to rotate, thereby realizing the lowering of the pipeline.

[0037] In any of the above schemes, it is preferred that the belt drive assembly includes an upper pulley 16 coaxially fixedly mounted on the outer end of the central shaft 14, a lower pulley 12 is coaxially fixedly connected to the outer side wall of the middle wheel axle 6 directly below the upper pulley 16, and a transmission belt 13 is cooperatively installed between the upper pulley 16 and the lower pulley 12.

[0038] The lower pulley 12 of the belt drive assembly is used to input power. When the lower pulley 12 rotates, the power is transmitted to the central shaft 14 by means of the transmission belt 13, thereby driving the rope drum 17 to rotate; synchronously operating belt drive assemblies are arranged on both sides, which can drive the entire rope drum 17 to operate smoothly.

[0039] In any of the above schemes, it is preferred that a supporting guide component is installed on the top of the chassis 3 between the through opening 303 and the rear wheel 8 installation space 301, and the top of the supporting guide component is used to support the pipeline to be laid passing thereover.

[0040] In any of the above schemes, it is preferred that the supporting guide component includes a horizontally arranged guide roller 19, and both ends of the guide roller 19 are respectively movably extended to the outside of the stand 20 at the corresponding position through the end shaft, and the bottom of each stand 20 is fixedly installed on the top of the base frame 3.

[0041] The guide roller 19 supporting the top of the guide component can rotate flexibly during rotation. When the pipeline thereon is lowered backward, the guide roller 19 plays a supporting and guiding role.

[0042] In any of the above schemes, preferably, a rigid traction frame 18 is fixedly installed on the top of the base frame 3 on the front side of the through opening 303, and the front end of the rigid traction frame 18 extends to the front side of the front wheel axle 7 and is used to connect and cooperate with external traction equipment.

[0043] Specific working principle: the whole equipment itself has no power. When in use, it needs to use a rigid traction frame 18 in conjunction with an external traction device. The rigid traction frame 18 can ensure the stability of traction when cooperating with the traction device. When working, it needs to be connected with the external traction device through the rigid traction frame 18 in advance. When the traction device is running, it can drive the corresponding front guide wheel group, rear guide wheel group and the middle wheel 9 in the middle to run synchronously. During the operation of the middle wheel 9, it can drive the corresponding pipeline storage unit to operate.

[0044] During the operation of the pipeline storage unit, the pipeline wrapped around it will be continuously lowered, and the pipeline will be pre-pulled by the external force from the rear to ensure that the pipeline in the initial state can smoothly fall into the corresponding pipeline laying groove 1, thereby completing the rapid laying of the pipeline.

[0045] From the above, it can be seen that the underground pipeline laying device cooperates with external traction equipment as power when laying pipelines, and can achieve smooth displacement along the extension direction of the current pipeline laying groove 1 under the action of the front guide wheel group and the rear guide wheel group.

[0046] During the displacement process, the rope drum 17 of the pipeline storage unit can be effectively driven to rotate by the rotation of the middle wheel 9 and the belt drive assembly, so as to achieve the purpose of lowering the pipeline. Controlling the traction speed can indirectly control the speed below the pipeline. During the forward movement of the entire equipment, the pipeline is lowered and laid in the pipeline laying groove 1 by relying on its own weight. When laying, it can be pressed with manual assistance as needed. In the process of lowering the flexible pipeline, the pipeline can effectively ensure the smoothness of the backward movement of the pipeline through the guidance of the supporting guide components and the guide sleeve during the backward guidance process. At the same time, when encountering resistance, the pipeline can be pulled backward intermittently by humans to ensure the normal lowering of the pipeline.

[0047] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model. For technicians in this technical field, any replacement improvements or changes made to the implementation methods of the utility model fall within the protection scope of the utility model.

[0048] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. An underground pipeline laying device, which is placed above a pipeline laying trench excavated underground, and is characterized by: The underground pipeline laying device includes a chassis arranged above the pipeline laying groove, a front wheel installation space and a rear wheel installation space are respectively arranged on the front and rear sides of the chassis, a through opening is arranged in the middle of the chassis, a front guide wheel group is installed inside the front wheel installation space, and a rear guide wheel group is installed inside the wheel, and a pipeline storage unit is installed above the middle of the chassis at the position of the through opening, and the free end of the pipeline to be laid wound on the pipeline storage unit bypasses the rear guide wheel group backwards and is laid in the pipeline laying groove.

2. An underground pipeline laying device according to claim 1, characterized in that: The front guide wheel group includes a horizontally arranged front wheel axle, the inner and outer ends of the front wheel axle are respectively movable through the through holes on the side wall of the chassis at the corresponding position of the front wheel installation space and extend to the outside thereof to be coaxially fixedly connected with a front wheel, and the bottom of the front wheel is supported on the ground on one side of the pipeline laying groove.

3. An underground pipeline laying device according to claim 2, characterized in that: The rear guide wheel group includes a horizontally arranged rear wheel axle, the inner and outer ends of the rear wheel axle respectively movably pass through the through holes on the side wall of the chassis at the corresponding position of the rear wheel installation space and extend to the outside thereof and are coaxially fixedly connected with a rear wheel, the bottom of the rear wheel is supported on the ground on one side of the pipeline laying groove, and a guide sleeve is movably sleeved on the outer side wall of the rear wheel axle inside the rear wheel installation space, and the inner cavity of the guide sleeve is gap-matched with the outer side wall of the rear wheel axle.

4. An underground pipeline laying device according to claim 3, characterized in that: The inner cavity surface of the guide tube sleeve and the outer side wall of the rear wheel axle are both polished smooth curved surfaces.

5. An underground pipeline laying device according to claim 4, characterized in that: The pipeline storage unit includes bearing seats fixedly mounted on the top of the chassis at both sides of the through opening, a rope drum is arranged between the two bearing seats, two ends of the central axis of the rope drum are movably extended to the outside of the corresponding bearing seats, and belt transmission assemblies are symmetrically installed at the two outer ends of the central axis, and the lower end of each belt transmission assembly is installed on the outer side wall of the middle wheel axle inside the through opening, the inner and outer ends of the middle wheel axle are movably extended to the outside of the through opening, and the middle wheels are coaxially fixedly connected at both ends of the middle wheel axle, and the bottom of the middle wheel is supported on the ground on one side of the pipeline laying groove, a pipeline is wound on the rope drum, the inner end of the pipeline is fixed on the rope drum, and the free end of the pipeline passes backward around the top of the guide sleeve and is laid inside the pipeline laying groove by its own weight.

6. An underground pipeline laying device according to claim 5, characterized in that: The belt drive assembly includes an upper pulley coaxially fixedly mounted on the outer end of the central shaft, a lower pulley coaxially fixedly connected to the outer side wall of the middle wheel axle directly below the upper pulley, and a transmission belt cooperatively mounted between the upper pulley and the lower pulley.

7. An underground pipeline laying device according to claim 6, characterized in that: A supporting guide component is installed on the top of the underframe between the through opening and the rear wheel installation space, and the top of the supporting guide component is used to support the pipeline to be laid passing thereover.

8. An underground pipeline laying device according to claim 7, characterized in that: The supporting guide component includes a horizontally arranged guide roller, both ends of which are movably extended through the end shaft to the outside of the stand at the corresponding position, and the bottom of each stand is fixedly installed on the top of the base frame.

9. An underground pipeline laying device according to claim 8, characterized in that: A rigid traction frame is fixedly installed on the top of the chassis at the front side of the through opening, and the front end of the rigid traction frame extends to the front side of the front wheel axle and is used for connecting and cooperating with external traction equipment.

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