CN220410586U

CN220410586U - Pipeline delivery vehicle and pipeline delivery structure

Info

Publication number: CN220410586U
Application number: CN202322079632.9U
Authority: CN
Inventors: 王惠风; 胡兵; 李永元; 马新根; 张磊; 高健勋; 姜琦
Original assignee: Huaneng Coal Technology Research Co Ltd
Current assignee: Huaneng Coal Technology Research Co Ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-01-30
Anticipated expiration: 2033-08-03

Abstract

The utility model provides a pipeline delivery vehicle and a pipeline delivery structure, and relates to the technical field of pipeline delivery. The pipeline delivery truck comprises a frame and wheels pivoted at the bottom of the frame, wherein the front end of the frame is provided with a support bracket, the support bracket comprises a connecting beam which extends along the left-right direction and is connected with the frame, the left end and the right end of the connecting beam are respectively provided with a support beam which extends forwards, the front ends of the two support beams are respectively provided with a limiting beam which extends in opposite directions, and an opening is formed between the two limiting beams. The pipeline delivery structure comprises a pipeline with connecting flanges at two ends and two pipeline delivery vehicles, wherein the two pipeline delivery vehicles are respectively positioned at two ends of the pipeline, the openings of the two pipeline delivery vehicles face the pipeline, and the bearing positions of the connecting flanges are lapped on two bearing joists of the corresponding pipeline delivery vehicles. The pipeline delivery vehicle has the advantages of simple structure, high flexibility, low requirement on conveying space and high conveying safety.

Description

Pipeline delivery vehicle and pipeline delivery structure

Technical Field

The utility model relates to the technical field of pipeline transportation, in particular to a pipeline transportation vehicle and a pipeline transportation structure.

Background

The pipeline in the crossheading is required to be recovered in the stoping process of the underground fully-mechanized mining face of the coal mine, wherein in the recovery process of the pipeline with larger volume such as a gas drainage pipeline, a plurality of operators are required to carry together at the end part and the two sides of the pipeline, the pipeline is affected by poor matching degree of a plurality of operators, small space of the crossheading and uneven roads, and the condition that the pipeline falls easily occurs in the carrying process, so that the mechanical collision injury is easily caused to the operators.

Disclosure of Invention

The utility model aims to provide a pipeline delivery vehicle and a pipeline delivery structure, which are used for solving the technical problem that the pipeline is easy to fall off in the pipeline transportation process, so that mechanical collision injury is easy to operators.

In order to solve the problems, the utility model provides a pipeline delivery vehicle, which is used for delivering a pipeline with a connecting flange at the end part, and comprises a vehicle frame and wheels pivoted at the bottom of the vehicle frame, wherein the front end of the vehicle frame is provided with a support bracket, the support bracket comprises a connecting beam which horizontally extends along the left-right direction and is connected with the vehicle frame, the left end and the right end of the connecting beam are respectively provided with a support beam which extends forwards, the front ends of the two support beams are respectively provided with a limiting beam which extends oppositely, and an opening is formed between the two limiting beams;

the distance between the two supporting beams is L1, the extension length of the supporting beams is L2, the extension length of the limiting beams is L3, the outer diameter of the connecting flange is D, the thickness of the connecting flange is D1, the width of the connecting flange extending out of the pipeline in the radial direction is D2, L1 is less than D, L2 is more than D1, and L3 is less than D2; the position of the outer circular wall below the axis of the connecting flange, the horizontal width of which is L1, is a bearing position, the distance between the bearing position and the bottom surface of the outer circular wall of the connecting flange is d3, and when the frame is in a horizontal state, the distance between the top surface of the supporting beam and the bottom surface of the wheel is L3, and d3 is smaller than L3.

Optionally, the connecting beam is in arc transition connection with the supporting beam, and the supporting beam is in arc transition connection with the limiting beam, the arc transition radiuses are r, and d1 is more than L2-2r.

Optionally, 1/3D is less than or equal to L1 and less than 1/2D.

Optionally, the overall width of both the frame and the wheel is less than the extension of the connecting beam.

Optionally, the pipeline transportation vehicle further comprises a dragging rod, wherein the bottom end of the dragging rod is connected to the frame, and the dragging rod is inclined from bottom to top by 30-45 degrees backwards.

Optionally, the axis of the towing bar intersects the axis of the wheel.

Optionally, the rear end of the frame extends to a pedal portion at the rear side of the bottom end of the drag lever.

Optionally, the bottom of the frame is pivoted with a rear auxiliary wheel at a position at the rear side of the wheel, and the frame is in a horizontal state when the bottom surface of the rear auxiliary wheel is coplanar with the bottom surface of the wheel.

Optionally, the number of the wheels is two, and the two wheels are located at the left side and the right side of the frame in a one-to-one correspondence manner; the front end bottom of the frame is hinged with a support arm at the middle position in the left-right direction, the bottom end of the support arm is rotationally connected with a front auxiliary wheel, the support arm is provided with a support position which is perpendicular to the frame and a avoidance position which is parallel to the frame, and under the support position, the bottom surface of the front auxiliary wheel is coplanar with the bottom surface of the wheel.

The utility model also provides a pipeline delivery structure, which comprises a pipeline with connecting flanges at two ends and two pipeline delivery vehicles, wherein the two pipeline delivery vehicles are respectively positioned at two ends of the pipeline, the openings of the two pipeline delivery vehicles face to the pipeline, and the bearing positions of the connecting flanges are lapped on the two bearing girders of the corresponding pipeline delivery vehicles.

According to the pipeline delivery vehicle, the connecting flange at one end of the pipeline can be conveniently and upwardly supported by rotating the vehicle frame to be separated from the ground or be downwardly separated from the connecting flange to be placed at a destination, accordingly, the two pipeline delivery vehicles are adopted to respectively support the connecting flanges at two ends of the pipeline to support the pipeline and the connecting flange to be separated from the ground, then the two pipeline delivery vehicles are synchronously moved through the wheels to realize the supporting and conveying of the pipeline, the operation is convenient and labor-saving, and an operator is not required to carry the pipeline at the side part of the pipeline, so that the labor consumption of the operator and the occupation requirement of the operator on the width direction of a carrying space during the carrying of the side part of the pipeline are reduced, the damage to the side operator caused by extrusion, collision, coal dropping and the like is correspondingly reduced or even stopped, the conveying efficiency is effectively improved, and the operation period is reduced; meanwhile, in the process of delivery, two pipeline delivery vehicles respectively support two ends of a pipeline, the synergy of two operators is easier to ensure, and the operators do not need to be in direct contact with the pipeline, so that the mechanical injury to the operators caused by dropping of the pipeline in the process of carrying is effectively reduced, and the safety of pipeline delivery is correspondingly improved; in addition, in the delivery process, the two limiting beams can limit the connecting flange at one side of the connecting flange, which faces the pipeline, so that the bearing effect of the connecting flange by the supporting beam is ensured, the occurrence of the sliding condition of the connecting flange from the supporting beam is reduced, the stability of the pipeline delivery vehicle in the pipeline delivery is further improved, and the damage to operators caused by the falling of the pipeline is further reduced; in addition, the pipeline delivery vehicle has the advantages of simple structure, low cost, small volume, small occupied space, strong flexibility and adaptability, and is particularly suitable for complex geological conditions under coal mines.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic front view of a pipeline shipping structure according to an embodiment of the present utility model;

fig. 2 is a schematic left view of a pipeline shipping structure according to an embodiment of the present utility model;

fig. 3 is a top view of a pipeline transportation vehicle according to an embodiment of the present utility model.

Reference numerals illustrate:

10-a pipeline delivery vehicle; 20-piping; 30-connecting flanges; 40-ground; 100-frame; 110-a tread; 120-pivoting shaft; 200-wheels; 300-a support bracket; 310-connecting beams; 320-bolster; 330-limiting beams; 340-opening; 400-drag lever; 410-handle.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiment provides a pipeline transportation vehicle 10, as shown in fig. 1-3, for transporting a pipeline 20 with a connecting flange 30 at the end, the pipeline transportation vehicle comprises a vehicle frame 100 and wheels 200 pivoted at the bottom of the vehicle frame 100, the front end of the vehicle frame 100 is provided with a support bracket 300, the support bracket 300 comprises a connecting beam 310 extending along the left-right direction and connected with the vehicle frame 100, the left-right ends of the connecting beam 310 are respectively provided with a support beam 320 extending forwards, the front ends of the two support beams 320 are respectively provided with a limiting beam 330 extending oppositely, and an opening 340 is formed between the two limiting beams 330; the distance between the two joists 320 is L1, the extension length of the joists 320 is L2, the extension length of the spacing beam 330 is L3, the outer diameter of the connecting flange 30 is D, the thickness is D1, and the width of the extending pipeline 20 along the radial direction is D2, L1 is less than D, L2 is greater than D1, and L3 is less than D2; the position of the outer circular wall below the axis of the connecting flange 30, the horizontal width of which is L1, is used as a bearing position, the distance between the bearing position and the bottom surface of the outer circular wall of the connecting flange 30 is d3, and when the frame 100 is in a horizontal state, the distance between the top surface of the supporting beam 320 and the bottom surface of the wheel 200 is L3, and d3 is less than L3.

The embodiment also provides a pipeline shipping structure, as shown in fig. 1, including a pipeline 20 with connecting flanges 30 at two ends and two pipeline shipping vehicles 10, wherein the two pipeline shipping vehicles 10 are respectively located at two ends of the pipeline 20 and have openings 340 facing the pipeline 20, and the bearing positions of the connecting flanges 30 are overlapped with two bearing beams 320 of the corresponding pipeline shipping vehicles 10.

In the pipeline transportation vehicle 10 provided in this embodiment, the wheels 200 and the vehicle frame 100 can rotate relatively, so that when the wheels 200 are supported on the ground 40, the vehicle frame 100 can rotate around the pivot joint of the wheels, namely the axis of the wheels 200, and the height and the angle of the support bracket 300 at the front end of the vehicle frame 100 can be adjusted correspondingly; meanwhile, the wheel 200 can rotate around its axis to drive the frame 100 to move back and forth. Wherein L1 < D ensures that the two support beams 320 support the connecting flange 30, L2 > D1 ensures that the connecting flange 30 can enter through the opening 340 and is supported on the support beams 320 completely without interference of the limiting beams 330, L3 < D2 ensures that the limiting beams 330 do not interfere with the outer wall of the pipe 20 when the support beams 320 support the connecting flange 30, and D3 < L3 ensures that the support bracket 300 can support the connecting flange 30 to be separated from the ground 40 when the frame 100 rotates to a horizontal state.

When the pipeline 20 is transported by adopting the pipeline carrier 10, the pipeline 20 is initially placed on the ground 40, the pipeline carrier 10 is pushed to be positioned at one end of the pipeline 20, the front end of the frame 100 is rotated downwards until the opening 340 is lower than the bearing position of the connecting flange 30, the width of the opening 340 is larger than the horizontal width of the corresponding height of the connecting flange 30, then the pipeline carrier 10 is pushed towards the connecting flange 30, the connecting flange 30 reaches between the two supporting beams 320 through the opening 340, then the rear end of the frame 100 is pushed downwards to enable the supporting bracket 300 to rotate upwards, when the top surface of the supporting beam 320 rotates upwards by the height d3, the bearing position of the connecting flange 30 is reached, the supporting bracket 300 is continuously rotated upwards, two sides of the outer circular wall surface of the connecting flange 30 are lapped on the two supporting beams 320, the supporting beam 320 is continuously rotated upwards to be separated from the ground 40, and the limiting beam 330 is clamped at one side of the connecting flange 30, which is away from the frame 100, so as to limit the movement of the connecting flange 30, and the supporting beam 330 is ensured to be supported on the supporting beam 320; two pipeline delivery vehicles 10 are adopted to respectively support two ends of a pipeline 20 so as to form a pipeline delivery structure, then the pipeline 20 and a connecting flange 30 are kept in a state of being separated from the ground 40, one operator pulls the pipeline delivery vehicle 10 at the front end in front, the other operator pushes the pipeline delivery vehicle 10 at the rear end in rear, and the two pipeline delivery vehicles 10 synchronously move so as to realize bearing delivery of the pipeline 20; after the pipe 20 reaches the destination, the front end of the carriage 100 is turned down until the top surface of the bolster 320 is below the height d3 and the width of the opening 340 is greater than the horizontal width of the corresponding height of the attachment flange 30, and the carriage 100 is moved away from the attachment flange 30 until the attachment flange 30 is disengaged from the bolster 300 from the opening 340, completing the shipment of the pipe 20.

In the pipeline transportation vehicle 10 provided in this embodiment, the connecting flange 30 at one end of the pipeline 20 can be conveniently and upwardly supported by rotating the frame 100 thereof to separate from the ground 40 or be downwardly separated from the connecting flange 30 to place the pipeline 20 at a destination, accordingly, the two pipeline transportation vehicles 10 are adopted to respectively support the connecting flanges 30 at two ends of the pipeline 20 to separate from the ground 40, then the two pipeline transportation vehicles 10 are synchronously moved by the wheels 200 to realize the supporting and transportation of the pipeline 20, the operation is convenient and labor-saving, and the operation personnel are not required to transport the pipeline 20 at the side part of the pipeline 20, thereby reducing the labor consumption of the operation personnel and the occupation requirement of the personnel on the width direction of the transport space when the side part of the pipeline 20 is transported, correspondingly reducing the damage to the pipeline transportation vehicle caused by extrusion, collision, coal dropping and the like even to the side operation personnel, and effectively improving the transportation efficiency and reducing the operation cycle; meanwhile, in the process of delivery, the two pipeline delivery vehicles 10 respectively support the two ends of the pipeline 20, so that the synergy of two operators is easier to ensure, and the operators do not need to be in direct contact with the pipeline 20, thereby effectively reducing the mechanical injury to the operators caused by dropping of the pipeline 20 in the process of carrying, and correspondingly improving the safety of the transportation of the pipeline 20; in addition, in the process of shipping, the two limiting beams 330 can limit the connecting flange 30 towards one side of the pipeline 20, so that the supporting effect of the supporting beam 320 on the connecting flange 30 is ensured, the occurrence of the sliding condition of the connecting flange 30 from the supporting beam 320 is reduced, the stability of the pipeline 20 shipping of the pipeline shipping vehicle 10 is further improved, and the damage to operators caused by the falling of the pipeline 20 is further reduced; in addition, the pipeline delivery vehicle 10 has the advantages of simple structure, low cost, small volume, small occupied space and strong flexibility and adaptability, and is particularly suitable for complex geological conditions under coal mines.

Alternatively, in this embodiment, as shown in fig. 3, the connection beam 310 and the bolster 320 are in arc transition connection, and the bolster 320 and the stop beam 330 are in arc transition connection, wherein the arc transition radius is r, and d1 is greater than L2-2r. Compared with the joint between the outer circumferential wall of the connecting flange 30 and the supporting beam 320 in the form of a straight beam, the supporting bracket 300 is rectangular with an opening 340 at the front end, and the four corners of the rectangle are rounded corners, so that when the connecting flange 30 is supported on the supporting beam 320, the outer circumferential wall of the connecting flange 30 is in one-to-one joint with the four edges formed by the two end surfaces at the supporting positions and the circular arc inner side walls of the four corners of the supporting bracket 300, and the four-point positioning supporting is formed between the connecting flange 30 and the supporting bracket 300, so that the supporting stability is higher, the stability of the pipeline transportation vehicle 10 in the transportation process of the connecting flange 30 and the pipeline 20 is improved, and the shaking condition of the connecting flange 30 is reduced.

Specifically, in this embodiment, 1/3 D.ltoreq.L1 < 1/2D is defined. When the radius of the connecting flange 30 is set to be R, 2/3R is less than or equal to L1 and less than R, the range of the connecting flange 30 from the bottom surface of the outer circular wall to the top [2/3R, R ] is a bearing position, the bearing position is close to the axle center area of the connecting flange 30, correspondingly, when the connecting flange 30 is supported by the supporting bracket 300, the area of the connecting flange 30 from the bottom surface of the outer circular wall to the top [0, 2/3R) is positioned below the supporting bracket 300, so that the stability of the connecting flange 30 supported by the supporting bracket 300 is improved, the bearing position of the connecting flange 30 by the supporting bracket 300 is reduced to be close to the bottom of the connecting flange 30, and the bearing stability of the supporting bracket 300 and the pipeline carrier 10 to the connecting flange 30 and the stability of the pipeline carrier structure are correspondingly further improved.

In this embodiment, the overall width of both the frame 100 and the wheel 200 is less than the extension length of the connecting beam 310. The connecting beam 310 horizontally extends in the left-right direction at the front end of the frame 100, the length of the connecting beam 310 is consistent with the distance L1 between the two supporting beams 320, then the length of the connecting beam 310 can meet the requirement of bearing the connecting flange 30, and meanwhile, the whole width of the frame 100 and the wheels 200 at the rear side of the connecting beam 310 is smaller than the extending length of the connecting beam 310, so that the pipeline 20 can be allowed to pass through in the delivery process without interference to the frame 100 and the wheels 200, and smooth passing of the frame 100 and the wheels 200 in the delivery process is ensured.

Optionally, in this embodiment, as shown in fig. 1-3, the pipeline transportation vehicle 10 further includes a drag lever 400, wherein the bottom end of the drag lever 400 is connected to the frame 100, and the drag lever 400 is inclined from bottom to top by 30 ° to 45 °. The drag lever 400 and the frame 100 can form a lever mechanism taking the axis of the wheel 200 as a fulcrum, the front end of the frame 100 is initially rotated downwards to enable the connecting flange 30 to enter the ring of the supporting bracket 300 through the opening 340, and in the process of subsequently rotating the front end of the frame 100 upwards to enable the supporting bracket 300 to lift the connecting flange 30 upwards, an operator can directly apply force to the drag lever 400, and the front end of the frame 100 is driven to rotate by pushing the drag lever 400 forwards or pulling the drag lever 400 backwards to drive the frame 100 to rotate around the axis of the wheel 200; meanwhile, the dragging rod 400 is inclined backwards by 30-45 degrees, an operator can more conveniently pull or press the top end of the dragging rod 400 downwards so that the support bracket 300 upwards supports the connecting flange 30 and the pipeline 20 with larger weight, the operation convenience of the pipeline transport vehicle 10 is improved, the operation of the operator is more labor-saving and easy, and the handling and control of the pipeline 20 transport are more reliable. Specifically, the top end of the drag lever 400 may be provided with a handle 410, so that an operator can hold the handle 410 to apply force to the drag lever 400; the length of the drag lever 400 can be 1.2m-1.5m, the corresponding height of the drag lever 400 in the length range is positioned at the waist position of an operator, so that the operator can conveniently apply force to the top handle 410 of the operator, in a lever mechanism formed by the drag lever 400 and the frame 100, the length range of the drag lever 400 is far longer than the effective length of the frame 100 in the lever mechanism, thereby effectively reducing the labor force of the operator for driving the frame 100 to rotate and correspondingly further improving the labor saving degree of the consignment operation; the dragging rod can be a hollow steel pipe, and the frame can be a steel frame.

Specifically, in the present embodiment, the axis of the drag link 400 intersects the axis of the wheel 200. The length extension line of the dragging rod 400 forms a fulcrum of a lever mechanism with the frame 100, so that the force application effectiveness of the dragging rod 400 for driving the front end of the frame 100 to rotate is higher, and accordingly the operator drives the frame 100 to rotate more labor-saving, so that the use convenience of the pipeline transport vehicle 10 is further improved.

In this embodiment, as shown in fig. 1 and 3, the rear end of the frame 100 extends to the rear side of the bottom end of the towing bar 400 with a tread portion 110. In the process that the support bracket 300 supports the connecting flange 30 to be separated from the ground 40, an operator can step down the tread portion 110 to assist in driving the frame 100 and the support bracket 300 to rotate upwards while driving the frame 100 and the support bracket 300 to rotate upwards through the force applied by the drag rod 400, so that the operation convenience of the pipeline transportation vehicle 10 is further improved, the effective support of the pipeline 20 is ensured, and the condition that the arm force of the operator is smaller and only the force applied to the drag rod 400 cannot support the connecting flange 30 and the pipeline 20 is reduced.

In this embodiment, as shown in fig. 3, there may be two wheels 200, the bottom of the frame 100 is provided with a pivot 120 extending horizontally along the left-right direction, the two wheels 200 are rotatably connected to two ends of the pivot 120 in a one-to-one correspondence, and the two wheels 200 are respectively located at the left and right sides of the frame 100. Compared with the bottom of the frame 100, in this embodiment, two wheels 200 are disposed on the left and right sides of the frame 100 to support the same, so that the support stability is higher, the rollover situation of the frame 100 can be effectively reduced, the bearing stability of the pipeline carrier 10 to the connecting flange 30 and the pipeline 20 is correspondingly further improved, and the force applied by operators to maintain the left and right balance of the frame 100 can be effectively reduced.

Optionally, in this embodiment, when the rear auxiliary wheel is pivoted to the bottom of the frame 100 at a position located at the rear side of the wheel 200, and the bottom surface of the rear auxiliary wheel is coplanar with the bottom surface of the wheel 200, the frame 100 is in a horizontal state. When the vehicle frame 100 and the support bracket 300 are driven to rotate upwards by the dragging rod 400 and the pedal 110 to support the connecting flange 30 to be separated from the ground 40 by the working personnel on the horizontal ground 40, the rear end of the vehicle frame 100 and the rear auxiliary wheel correspondingly rotate downwards, the ground 40 of the rear auxiliary wheel is coplanar with the bottom surface of the wheel 200 when the rear auxiliary wheel contacts the ground 40, the vehicle frame 100 is in a horizontal state, the support bracket 300 correspondingly supports the connecting flange 30 to be separated from the ground 40, the working personnel applies force to the dragging rod 400 to keep the rear auxiliary wheel to contact the ground 40, the vehicle frame 100 can be maintained in the horizontal state, and accordingly, the vehicle frame 100 can be stably kept in the horizontal state in the process of supporting the pipeline 20, so that the stable support of the pipeline 20 in the process of supporting the pipeline 10 is improved, the condition that the working personnel difficultly hold the front and back of the vehicle frame 100 due to the fact that the force applied by the working personnel to the dragging rod 400 is difficult to grasp is easy, and the connecting flange 30 is likely to rotate downwards to collide with the ground 40, and the smooth supporting condition is easily caused.

Further, in this embodiment, a support arm may be hinged at a middle position of the bottom of the front end of the frame 100 in the left-right direction, the bottom end of the support arm is rotatably connected with a front auxiliary wheel, the support arm has a support position that rotates to be perpendicular to the frame 100 and is parallel to the avoidance position of the frame 100, and under the support position, the bottom surface of the front auxiliary wheel is coplanar with the bottom surface of the wheel 200. At first, the support arm is rotated to the avoiding position, the front auxiliary wheel is located below the frame 100 and can not interfere the downward rotation of the front end of the frame 100 and the support bracket 300, when the support bracket 300 supports the connecting flange 30 and rotates upwards to enable the frame 100 to be in a horizontal state or a forward tilting state, the connecting flange 30 is dragged away from the ground 40, the support arm is rotated backwards to the supporting position, then the force applied to the dragging rod 400 and the pedal 110 is stopped, the frame 100 is in a horizontal state under the downward pressing action of the pipeline 20 and the upward supporting action of the front auxiliary wheel, thereafter, an operator only needs to push the dragging rod 400 forwards to push the frame 100 and the support beam 320 to support the pipeline 20 forwards, and the support beam 320 at the front end of the frame 100 is not required to drive the support the pipeline 20 upwards through the dragging rod 400, namely the weight of the pipeline 20 is not required to be loaded manually, so that the labor consumption of the pipeline carrier 10 in the forward conveying process of the pipeline 20 is greatly reduced, and the use convenience of the pipeline carrier 10 and the stability of the pipeline carrier 20 are correspondingly improved.

Preferably, a limit table can be fixedly arranged at the bottom of the frame 100 at the rear side of the support arm, a clamp is arranged on the limit table, when the support arm rotates to a vertical state, the rear side wall of the support arm is abutted against the limit table, an operator can connect the support arm to the limit table through the clamp, and in the process of consignment, the limit table can play a role in forward limit support on the support arm at the rear side, the support acts on the forward auxiliary wheel to transfer the backward acting force of the support arm to be opposite, so that the stability of the support arm at the support position is effectively improved, the support of the front auxiliary wheel on the pipeline 20 is correspondingly ensured, the ineffective support of the front auxiliary wheel caused by the rotation of the support arm in the process of consignment is reduced, and one end of the pipeline 20 falls on the ground 40; after the shipping is completed, the connection of the clamp to the support arm can be disconnected, and the support arm can be rotated forward to the avoidance position, so that the frame 100 can be rotated to put down the connecting flange 30.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The pipeline delivery truck is used for delivering a pipeline (20) with a connecting flange (30) at the end part, and is characterized by comprising a frame (100) and wheels (200) pivoted at the bottom of the frame (100), wherein a support bracket (300) is arranged at the front end of the frame (100), the support bracket (300) comprises a connecting beam (310) horizontally extending along the left-right direction and connected with the frame (100), support beams (320) extending forwards are arranged at the left end and the right end of the connecting beam (310), limit beams (330) extending oppositely are arranged at the front ends of the two support beams (320), and an opening (340) is formed between the two limit beams (330);

the distance between the two supporting beams (320) is L1, the extension length of the supporting beams (320) is L2, the extension length of the limiting beam (330) is L3, the outer diameter of the connecting flange (30) is D, the thickness of the connecting flange is D1, the width of the connecting flange extending out of the pipeline (20) in the radial direction is D2, L1 is less than D, L2 is more than D1, and L3 is less than D2; the horizontal width of the outer circular wall below the axis of the connecting flange (30) is L1, the distance between the bearing position and the bottom surface of the outer circular wall of the connecting flange (30) is d3, and when the frame (100) is in a horizontal state, the distance between the top surface of the supporting beam (320) and the bottom surface of the wheel (200) is L3, and d3 is less than L3.

2. The pipeline hauler of claim 1, wherein the connection beam (310) and the bolster (320) are in arc transition connection, and the bolster (320) and the limit beam (330) are in arc transition connection, the arc transition radius is r, and d1 > L2-2r.

3. The pipeline transportation vehicle of claim 1, wherein 1/3D is less than or equal to L1 < 1/2D.

4. A pipeline transportation vehicle according to any one of claims 1-3, characterized in that the overall width of both the frame (100) and the wheels (200) is smaller than the extension length of the connecting beam (310).

5. A pipeline hauling car according to any one of claims 1-3, characterized in that the pipeline hauling car (10) further comprises a hauling rod (400), the bottom end of the hauling rod (400) is connected to the frame (100), and the hauling rod (400) is inclined from bottom to top back by 30-45 °.

6. The pipeline hauler of claim 5, wherein an axis of the hauling bar (400) intersects an axis of the wheel (200).

7. The pipeline transportation vehicle according to claim 5, characterized in that the rear end of the frame (100) extends with a tread portion (110) at the rear side of the bottom end of the towing bar (400).

8. A pipeline transportation vehicle according to any one of claims 1-3, wherein the bottom of the frame (100) is pivoted with a rear auxiliary wheel at a position behind the wheels (200), and the frame (100) is in a horizontal state when the bottom surface of the rear auxiliary wheel is coplanar with the bottom surface of the wheels (200).

9. A pipeline transportation vehicle according to any one of claims 1-3, characterized in that the number of wheels (200) is two, and the two wheels (200) are located on the left and right sides of the frame (100) in a one-to-one correspondence; the front end bottom of the frame (100) is hinged with a supporting arm at the middle position in the left-right direction, the bottom end of the supporting arm is rotationally connected with a front auxiliary wheel, the supporting arm is provided with a supporting position which is perpendicular to the frame (100) and a avoiding position which is parallel to the frame (100), and under the supporting position, the bottom surface of the front auxiliary wheel is coplanar with the bottom surface of the wheel (200).

10. Pipeline delivery structure, characterized in that, including pipeline (20) that both ends all are equipped with flange (30) and two pipeline delivery vehicles (10) of any one of claims 1-9, two pipeline delivery vehicles (10) are located respectively pipeline (20) both ends position and its opening (340) all face pipeline (20), the bearing of flange (30) is located the overlap joint and is corresponding two spandrel girder (320) of pipeline delivery vehicle (10).