Omnibearing pipe hoisting machine

Abstract

The embodiment of the invention relates to the technical field of pipe hoisting machines, and provides an all-dimensional pipe hoisting machine which comprises a walking vehicle, one side of the walking vehicle is provided with a rotatable hoisting arm, the hoisting arm can be driven by a steel wire rope to swing, the hoisting arm is provided with a lifting hook capable of ascending and descending, and the lifting hook can be driven by the steel wire rope to ascend and descend; the lifting appliance can be hung on the lifting hook and is used for lifting a pipe; the upper arc-shaped blocking piece is arranged on the side, close to the lifting hook, of the lifting arm and used for blocking the pipeline from the upper portion and the two sides. By means of the technical scheme, the technical problems that in the pipe hoisting process of a pipe hoisting machine in the prior art, a pipeline easily shakes, the pipeline quality is affected, and the service life of equipment is shortened are solved. The upper arc-shaped blocking piece blocks the pipeline from the upper portion and the two sides, the pipeline can be effectively prevented from being separated from the lifting appliance due to shaking in the lifting process, and the safety risk is reduced.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of pipe-laying machine technology, and more specifically, to an omnidirectional pipe-laying machine. Background Technology

[0002] In the construction of long-distance natural gas pipelines, omnidirectional pipe-laying machines, with their advantages of rotation and multi-directional amplitude variation, can adapt to pipeline lifting and short-distance transfer operations in different terrains such as plains and hills, becoming a key piece of equipment connecting pipeline prefabrication and on-site docking. Currently, most omnidirectional pipe-laying machines on the market use a transmission method combining wire ropes and hooks for their lifting mechanisms. While this structure meets basic lifting requirements, the inherent flexibility of the wire rope makes it susceptible to interference from external factors such as changes in wind speed and uneven ground causing machine tilting during operation, resulting in natural swaying. Furthermore, when fine-tuning the pipeline position is required, the asynchronous movement of the boom and lifting action often causes additional pipeline swaying. Since natural gas pipelines are mostly large-diameter steel pipes, pipeline swaying can affect the welding at pipeline joints, increasing the risk of future leaks. Simultaneously, the impact load generated by swaying can cause additional wear and tear on components such as the pipe-laying machine's boom and slewing support, shortening the equipment's lifespan. This issue has become a significant factor restricting the safety and efficiency of pipe-laying operations. Summary of the Invention

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide an all-around pipe-laying machine, which solves the technical problem that the pipe is prone to shaking during the pipe-laying process of the prior art, affecting the quality of the pipe and reducing the service life of the equipment.

[0004] According to one aspect, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, comprising: The traveling vehicle has a rotatable boom on one side, which can be swung by a wire rope. The boom has a lifting hook that can be raised and lowered by another wire rope. A lifting device, which can be attached to the hook, is used for lifting pipes; An upper arc-shaped stop is provided on the side of the boom near the hook, and is used to block the pipe from the top and both sides.

[0005] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, wherein the upper arc-shaped stop is rotatably and slidably disposed on the boom, and the sliding direction is along the length direction of the boom, and further includes: A first elastic element, one end of which acts on the boom and the other end of which acts on the upper arc-shaped stop, provides a force for the upper arc-shaped stop to slide downward; An arc-shaped buffer element is slidably disposed on the upper arc-shaped stop element for contacting the pipe; The second elastic element has one end acting on the arc-shaped buffer and the other end acting on the upper arc-shaped stop, providing a force to the arc-shaped buffer away from the upper arc-shaped stop.

[0006] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, wherein the upper arc-shaped stop has a clearance notch for the passage of a wire rope, and the arc-shaped buffer is provided on both sides of the clearance notch.

[0007] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, which further includes: A front arc-shaped stop and a rear arc-shaped stop are respectively hinged to both ends of the upper arc-shaped stop to form a closed tube space. The front arc-shaped stop and the rear arc-shaped stop each have a front abutting end and a rear abutting end, and the front abutting end and the rear abutting end abut against each other. The third elastic element has one end acting on the upper arc-shaped stop and the other end acting on the front arc-shaped stop or the rear arc-shaped stop, providing a force for the front abutting end and the rear abutting end to abut against each other.

[0008] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, wherein the lower ends of the front abutment end and the rear abutment end both have inclined pushing surfaces, which are used to be pushed by the pipe below, causing the front arc-shaped stop and the rear arc-shaped stop to open, thereby enabling the pipe to enter the pipe-accommodating space.

[0009] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, which further includes: A front locking hook and a rear locking hook are respectively rotatably mounted on the front abutment end and the rear abutment end, and the front locking hook and the rear locking hook can hook into each other after rotation; The fourth elastic element has one end acting on the front abutment end or the rear abutment end, and the other end acting on the front locking hook or the rear locking hook, providing a force for the front locking hook and the rear locking hook to hook together.

[0010] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, which further includes: The lower unlocking member is rotatably disposed at the inclined pushing surface. The lower unlocking member is configured to rotate so that it can drive the front locking hook and the rear locking hook to rotate, thereby unhooking the front locking hook and the rear locking hook. The lower unlocking member is configured to protrude from the inclined pushing surface for being pushed and rotated from below by the tube. The fifth elastic element has one end acting on the lower unlocking member and the other end acting on the front arc-shaped stop or the rear arc-shaped stop, and is used to provide the lower unlocking member with a force protruding from the inclined pushing surface.

[0011] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, which further includes: The upper unlocking component is rotatably provided at the bottom of the inner wall of both the front arc-shaped stop and the rear arc-shaped stop. The upper unlocking component is configured to rotate and drive the front locking hook and the rear locking hook to rotate, so that the front locking hook and the rear locking hook are unhooked. The upper unlocking component is configured to protrude from the inner wall of the front arc-shaped stop and the rear arc-shaped stop, so that it can be pushed and rotated from above by the tube in the tube space. The sixth elastic element has one end acting on the upper unlocking element and the other end acting on the front arc-shaped stop or the rear arc-shaped stop, and is used to provide the upper unlocking element with a force that protrudes from the inner wall of the front arc-shaped stop and the rear arc-shaped stop.

[0012] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, wherein the lower unlocking member and the upper unlocking member drive the front locking hook and the rear locking hook to rotate via a transmission shaft and a bevel gear.

[0013] For example, at least one embodiment of this disclosure provides an omnidirectional pipe-laying machine, wherein the lifting device includes: A crossbar, the crossbar having a hook groove in the middle for being hooked by the hook, and hanging grooves at both ends; The rope body has its two ends respectively hung in the hanging grooves at both ends of the crossbar; Guide wheels, a plurality of guide wheels are spaced apart on the rope body, the guide wheels are used to roll along the outer wall of the tube along the axial direction parallel to the tube.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the upper arc-shaped stop blocks the pipeline from above and both sides, effectively preventing the pipeline from detaching from the lifting device due to swaying during hoisting, thus reducing safety risks. The upper arc-shaped stop limits the swaying range of the pipeline to a certain extent. Combined with the buffer device of the lifting device and the stability performance of the traveling vehicle, it effectively reduces pipeline swaying caused by external factors such as changes in wind speed and uneven ground, which helps to ensure the welding quality at the pipeline joints and reduces the risk of later leakage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1This is a schematic diagram of the pipe-laying machine in one embodiment of the present disclosure; Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle; Figure 3 for Figure 1 Another perspective structural diagram of the pipe-laying machine in the embodiment; Figure 4 for Figure 3 A magnified schematic diagram of the partial structure of B in the middle section; Figure 5 for Figure 1 A top view of the pipe-laying machine in the embodiment; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the middle CC section; Figure 7 for Figure 6 A magnified schematic diagram of the middle D section; Figure 8 for Figure 1 A schematic diagram of the front and rear locking hook structures in the embodiment; In the diagram: traveling vehicle 100, boom 110, hook 111, lifting device 200, crossbar 210, hook groove 211, hanging groove 212, rope 220, guide wheel 230, upper arc-shaped stop 300, clearance notch 301, first elastic element 310, arc-shaped buffer 320, second elastic element 330, front arc-shaped stop 400, front abutment end 401, inclined pushing surface 4011, rear arc-shaped stop 500, rear abutment end 501, third elastic element 600, front locking hook 700, rear locking hook 800, fourth elastic element 900, lower unlocking element 1000, fifth elastic element 1100, upper unlocking element 1200, sixth elastic element 1300. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-8 As shown, an all-around pipe-laying machine according to an embodiment of the present disclosure includes a traveling vehicle 100, a lifting device 200, and an upper arc-shaped stop 300. The traveling vehicle 100 has a rotatable boom 110 on one side, which can be swung by a wire rope. The boom 110 has a hook 111 that can be raised and lowered, which can be raised and lowered by another wire rope. The lifting device 200 can be hung on the hook 111 for lifting pipes. The upper arc-shaped stop 300 is disposed on the side of the boom 110 near the hook 111 for blocking the pipe from above and both sides.

[0024] For example, the traveling vehicle 100 can be a tracked traveling vehicle, and the boom 110. The boom consists of two telescopic sections, and its length can be flexibly adjusted according to different operational needs.

[0025] The bottom of the boom 110 is connected to the chassis of the traveling vehicle 100 via a slewing bearing. The slewing bearing allows for 360° full rotation, enabling the boom to operate in different directions. The boom's swing is driven by a set of hydraulic cylinders or by wire rope, allowing for quick and smooth adjustment of the boom's swing angle. The lifting and lowering of the hook 111 can be achieved by a combination of wire rope and winch, and the lifting device 200 can secure and lift the natural gas pipeline.

[0026] The upper arc-shaped stop 300 is arc-shaped, and its radius is designed according to the outer diameter of common natural gas pipelines to ensure that the pipeline can be effectively blocked from the top and sides.

[0027] The operator starts the engine in the cab, drives the traveling vehicle 100 to the vicinity of the pipe to be lifted, and adjusts the vehicle position so that the boom 110 can be accurately aligned with the pipe. Based on the length and weight of the pipe, a suitable lifting device 200 is selected and attached to the hook 111. The lifting device is then secured to the pipe using the control buttons.

[0028] The winch is started, and the hook 111 and lifting device 200, along with the pipeline, are lifted together using a wire rope. During the lifting process, the operator can adjust the winch speed according to the actual situation to ensure a smooth lifting process. Once the pipeline is lifted to a certain height, the hydraulic cylinder is operated to swing the boom 110 to the designated transfer position. During the transfer, the upper arc-shaped stop 300 blocks the pipeline from above and both sides to prevent the pipeline from detaching from the lifting device due to swaying. At the same time, the traveling vehicle 100 moves to the corresponding position as needed to complete the short-distance transfer of the pipeline.

[0029] The upper arc-shaped stop 300 blocks the pipe from the top and both sides, effectively preventing the pipe from detaching from the lifting device due to shaking during hoisting, thus reducing safety risks.

[0030] The upper arc-shaped stop 300 limits the sway range of the pipeline to a certain extent. Combined with the buffer device of the spreader 200 and the stability performance of the traveling vehicle 100, it effectively reduces the sway of the pipeline caused by external factors such as changes in wind speed and uneven ground. This helps to ensure the welding quality at the pipeline joint and reduce the risk of leakage later.

[0031] Reducing the impact load caused by pipe swaying reduces additional wear and tear on components such as the pipe-laying machine boom 110 and slewing support, extends the service life of the equipment, and lowers maintenance costs.

[0032] In some examples, the upper arc-shaped stop 300 is rotatably and slidably disposed on the boom 110, and the sliding direction is along the length direction of the boom 110. It also includes a first elastic member 310, an arc-shaped buffer member 320 and a second elastic member 330. One end of the first elastic member 310 acts on the boom 110 and the other end acts on the upper arc-shaped stop 300, providing a force for the upper arc-shaped stop 300 to slide downward. The arc-shaped buffer member 320 is slidably disposed on the upper arc-shaped stop 300 for contacting the pipe. One end of the second elastic member 330 acts on the arc-shaped buffer member 320 and the other end acts on the upper arc-shaped stop 300, providing a force for the arc-shaped buffer member 320 to move away from the upper arc-shaped stop 300.

[0033] For example, the upper arc-shaped stop 300 is rotatably connected to the boom 110 via a rotating shaft. The upper arc-shaped stop 300 can rotate around the rotating shaft within a certain angle range. At the same time, the upper arc-shaped stop 300 can slide along the length of the boom 110, which is achieved by the rotating shaft also being able to slide smoothly along the length of the boom 110.

[0034] The first elastic element 310 can be a compression spring. One end of the first elastic element 310 abuts against the boom 110, and the other end abuts against the rotating shaft of the upper arc-shaped stop 300, providing a downward sliding force for the upper arc-shaped stop 300, ensuring that the upper arc-shaped stop 300 remains close to the pipe under the action of no external force.

[0035] On the inner arc surface of the upper arc-shaped stop 300, a groove is provided perpendicular to the arc surface direction. The arc-shaped buffer 320 is slidably disposed in the groove 303 to ensure that the arc-shaped buffer 320 can slide on the upper arc-shaped stop 300.

[0036] A rubber spring can be used as the second elastic element 330. The rubber spring has good buffering performance and vibration absorption capacity. One end abuts against the arc-shaped buffer 320, and the other end abuts against the inner arc surface of the upper arc-shaped stop 300, providing a force away from the upper arc-shaped stop 300 to the arc-shaped buffer 320, so that the arc-shaped buffer 320 can better fit the pipe and buffer the swaying during the pipe hoisting process.

[0037] When the lifting device 200 lifts the pipeline, the pipeline may sway or shift position due to various factors. Under the action of the first elastic element 310, the upper arc-shaped stop 300 always tends to slide downwards towards the pipeline. If the pipeline sways back and forth, the upper arc-shaped stop 300 can rotate around its central axis at a certain angle to maintain stable contact with the pipeline, while simultaneously blocking the pipeline under the action of the first elastic element 310. When the pipeline shifts along the length of the lifting arm 110, the upper arc-shaped stop 300 can slide along the slide rail 112, always maintaining effective blocking of the pipeline.

[0038] The arc-shaped buffer 320, under the action of the second elastic element 330, always maintains contact with the pipeline and provides buffering force. When the pipeline sways, the arc-shaped buffer 320 can slide along the groove 303 of the upper arc-shaped stop 300. Through its own elastic deformation and the buffering effect of the second elastic element 330, it absorbs the energy generated by the pipeline swaying, further reducing the amplitude of pipeline swaying, while protecting the pipeline surface from scratches.

[0039] The upper arc-shaped stop 300 is designed to be rotatable and slidable. Combined with the function of the first elastic element 310, it can better follow the swaying and positional changes of the pipeline, always maintaining effective obstruction of the pipeline. This further enhances the stability of the pipeline during hoisting and reduces the impact of swaying on the welding quality of the pipeline and equipment components.

[0040] The arc-shaped buffer 320 is connected to the upper arc-shaped stop 300 through the second elastic element 330, which can better fit the pipeline and effectively buffer the swaying energy of the pipeline. This not only protects the pipeline surface, but also further reduces the swaying amplitude of the pipeline, thereby improving the safety and quality of operation.

[0041] This design enables the pipe hoist to better adapt to the hoisting needs of pipes under different working conditions. Whether it is the tilting of the pipe caused by uneven ground or the swaying caused by changes in wind speed, the adaptive adjustment and buffering effect of the upper arc-shaped stop 300 and the arc-shaped buffer 320 can ensure the smooth hoisting process and improve the versatility and applicability of the equipment.

[0042] In some examples, the upper arc-shaped stop 300 has a clearance notch 301 for the passage of the wire rope, and arc-shaped buffers 320 are provided on both sides of the clearance notch 301.

[0043] For example, the upper arc-shaped stop 300 has a clearance notch 301 at one end near the hook 111. The clearance notch 301 is U-shaped and its width is determined according to the diameter of the wire rope to ensure that the wire rope can pass through smoothly, while avoiding excessive gaps that could cause the wire rope to sway, and ensuring that the wire rope will not interfere with other parts of the upper arc-shaped stop 300 when passing through.

[0044] On both sides of the clearance notch 301, arc-shaped buffer components 320 are slidably installed to ensure that the arc-shaped buffer components 320 can slide smoothly within the slide groove 303. The main body of the arc-shaped buffer component 320 can be made of polyurethane material, and the radius of its inner arc surface is adapted to the outer diameter of common natural gas pipelines.

[0045] When the hook 111 lifts the pipe using the wire rope, the wire rope passes through the clearance notch 301. The design of the clearance notch 301 ensures the normal passage of the wire rope while allowing the upper arc-shaped stop 300 to block the pipe near the hook 111.

[0046] During pipeline hoisting, the arc-shaped buffers 320 located on both sides of the clearance notch 301 contact the pipeline surface, and the double-sided support makes the pipeline more stable. When the pipeline sways, the arc-shaped buffers 320, under the action of the second elastic element 330, absorb the swaying energy through their own elastic deformation, thus buffering the swaying of the pipeline. At the same time, since the arc-shaped buffers 320 can slide within the groove 303, they can better adapt to changes in the position of the pipeline, always maintaining good contact with the pipeline and providing stable buffer protection for the pipeline.

[0047] In some examples, a front arc-shaped stop 400 and a rear arc-shaped stop 500 are also included. The front arc-shaped stop 400 and the rear arc-shaped stop 500 are respectively hinged to both ends of the upper arc-shaped stop 300 to form a closed tube space. The front arc-shaped stop 400 and the rear arc-shaped stop 500 have a front abutting end 401 and a rear abutting end 501, respectively, and the front abutting end 401 and the rear abutting end 501 abut against each other. One end of the third elastic member 600 acts on the upper arc-shaped stop 300, and the other end acts on the front arc-shaped stop 400 or the rear arc-shaped stop 500, providing a force for the front abutting end 401 and the rear abutting end 501 to abut against each other.

[0048] For example, the front arc-shaped baffle 400 and the rear arc-shaped baffle 500 have sufficient strength and rigidity to withstand the impact forces that the pipeline may generate. Their shapes are designed to match the arc shape of the upper arc-shaped baffle 300, and the curvature is adapted to the outer diameter of common natural gas pipelines, allowing for a better fit to the pipeline surface.

[0049] One end of the front arc-shaped stop 400 and the rear arc-shaped stop 500 are respectively hinged to both ends of the upper arc-shaped stop 300 via high-strength hinge shafts. Each hinge is equipped with a locating pin, which can limit the rotation angle of the front and rear arc-shaped stops, so that they can form a closed tube space during normal operation.

[0050] The front abutment end 401 of the front arc-shaped stop 400 and the rear abutment end 501 of the rear arc-shaped stop 500 are designed as mutually cooperating inclined structures. This design enables the front abutment end 401 and the rear abutment end 501 to form a tight contact when they abut against each other.

[0051] A torsion spring can be selected as the third elastic element 600 and installed between the upper arc-shaped stop 300 and the front arc-shaped stop 400 or the rear arc-shaped stop 500. One end abuts against the upper arc-shaped stop 300, and the other end abuts against the front arc-shaped stop 400 or the rear arc-shaped stop 500, providing abutting force for the front abutting end 401 and the rear abutting end 501.

[0052] Before the pipe is lifted, the front arc-shaped stop 400 and the rear arc-shaped stop 500, under the action of the third elastic element 600, have their front abutment ends 401 and rear abutment ends 501 tightly abutting each other, forming a closed pipe-containing space together with the upper arc-shaped stop 300. After the pipe is lifted into this space, the pressure continuously provided by the third elastic element 600 ensures that the front and rear arc-shaped stops always maintain restraint on the pipe, preventing the pipe from coming out from the side.

[0053] To accommodate pipe swaying: During pipe hoisting, if the pipe sways, the front arc-shaped stop 400 and the rear arc-shaped stop 500 will, to some extent, block the pipe's swaying. Simultaneously, the third elastic element 600 can buffer the impact force caused by pipe swaying, further stabilizing the pipe. The arc-shaped buffer element 320 located on the upper arc-shaped stop 300, along with the sliding and rotating design of the upper arc-shaped stop 300 itself, also work together to reduce the amplitude of pipe swaying.

[0054] The front arc-shaped stop 400, the rear arc-shaped stop 500, and the upper arc-shaped stop 300 form a closed pipe-containing space. Together with the third elastic element 600, they further restrict the movement of the pipe from the side, greatly enhancing the constraint on the pipe and effectively preventing the pipe from shaking during hoisting, thus improving the safety of the operation.

[0055] In some examples, the lower ends of the front abutment end 401 and the rear abutment end 501 both have inclined pushing surfaces 4011, which are pushed by the tube below to open the front arc-shaped stop 400 and the rear arc-shaped stop 500, thereby allowing the tube to enter the tube-containing space.

[0056] For example, both the lower ends of the front abutment end 401 and the rear abutment end 501 are designed with inclined pushing surfaces 4011. The inclined pushing surfaces 4011 are planar structures with a certain angle to the horizontal direction. This angle design can ensure that the front and rear arc-shaped stops can be opened relatively smoothly during the pipeline's ascent, and can also ensure that the front and rear arc-shaped stops can quickly return to the abutment state under the action of the third elastic element 600 after the pipeline enters the pipe space, thus effectively constraining the pipeline.

[0057] When the hook 111 lifts the pipe upwards, the upper surface of the pipe first contacts the inclined pushing surface 4011. As the pipe continues to rise, it exerts an upward thrust on the inclined pushing surface 4011. Since the inclined pushing surface 4011 forms a certain angle with the horizontal direction, this thrust is decomposed into a horizontal component and a vertical component. The horizontal component causes the front arc-shaped stop 400 and the rear arc-shaped stop 500 to rotate outwards around the hinge axis, thereby opening the pipe-accommodating space and allowing the pipe to enter smoothly.

[0058] Once the pipeline is fully inside the containment space, the front arc-shaped stop 400 and the rear arc-shaped stop 500, under the action of the third elastic element 600, return to the state where the front abutment end 401 and the rear abutment end 501 are in contact, thus re-forming a closed containment space and providing effective lateral restraint for the pipeline. During pipeline hoisting, if the pipeline sways, the front and rear arc-shaped stops can rotate around the hinge axis at a certain angle to accommodate the swaying. At the same time, the third elastic element 600 buffers the impact force of the swaying, working in conjunction with other components to reduce the amplitude of pipeline swaying.

[0059] In some examples, a front locking hook 700 and a rear locking hook 800 are also included. The front locking hook 700 and the rear locking hook 800 are rotatably mounted on the front abutment end 401 and the rear abutment end 501, respectively. After rotation, the front locking hook 700 and the rear locking hook 800 can hook each other. One end of the fourth elastic element 900 acts on the front abutment end 401 or the rear abutment end 501, and the other end acts on the front locking hook 700 or the rear locking hook 800, providing a force for the front locking hook 700 and the rear locking hook 800 to hook each other.

[0060] For example, the main body shape of the front locking hook 700 and the rear locking hook 800 is L-shaped, and the curved part of the locking hook adopts an arc design, with the curvature matching the surface of the pipe so as to better hook the other.

[0061] The front locking hook 700 is rotatably mounted on the front abutment end 401, and the rear locking hook 800 is rotatably mounted on the rear abutment end 501. The fourth elastic element 900 can be a torsion spring, with one end abutting against the front locking hook 700 or the rear locking hook 800, and the other end abutting against the front abutment end 401 or the rear abutment end 501. During installation, adjust the preload of the spring to provide sufficient force to engage the front locking hook 700 and the rear locking hook 800.

[0062] When the pipe enters the confined space formed by the front arc-shaped stop 400, the rear arc-shaped stop 500, and the upper arc-shaped stop 300, the front abutment end 401 and the rear abutment end 501 are tightly abutted together under the action of the third elastic element 600. At this time, the fourth elastic element 900 comes into play, pulling the front locking hook 700 and the rear locking hook 800 to rotate relative to each other and hook together. The pulling force provided by the fourth elastic element 900 ensures that the front locking hook 700 and the rear locking hook 800 remain in the hooked state, further enhancing the sealing and stability of the confined space, preventing the front and rear arc-shaped stops from opening accidentally, and avoiding the pipe from coming out from the side.

[0063] During pipeline hoisting, if the pipeline sways, the front and rear arc-shaped stops can rotate around the hinge axis at a certain angle to accommodate the swaying. Since the front locking hook 700 and the rear locking hook 800 are interlocked, they can work together to resist the force generated by the pipeline swaying. Together with the third elastic element 600 and other buffer components, they reduce the amplitude of pipeline swaying and ensure the safety of the hoisting process.

[0064] The front locking hook 700 and the rear locking hook 800 are hooked together by the fourth elastic element 900, which further strengthens the sealing of the pipe space and effectively prevents the pipe from coming out from the side due to the opening of the front and rear arc-shaped stops during hoisting, thus greatly improving the safety of the operation.

[0065] In some examples, a lower unlocking member 1000 is also included. The lower unlocking member 1000 is rotatably disposed at the inclined pushing surface 4011. The lower unlocking member 1000 is configured to rotate and drive the front locking hook 700 and the rear locking hook 800 to rotate, so that the front locking hook 700 and the rear locking hook 800 are unhooked. The lower unlocking member 1000 is configured to protrude from the inclined pushing surface 4011 for being pushed and rotated from below by the tube. One end of the fifth elastic member 1100 acts on the lower unlocking member 1000, and the other end acts on the front arc-shaped stop 400 or the rear arc-shaped stop 500 to provide the force for the lower unlocking member 1000 to protrude from the inclined pushing surface 4011.

[0066] For example, the lower unlocking component 1000 has a main body shape of a right triangle, with the hypotenuse protruding from the inclined pushing surface 4011, and the lower unlocking component 1000 is rotatably positioned at the inclined pushing surface 4011.

[0067] The fifth elastic element 1100 can be a torsion spring, with one end abutting against the lower unlocking element 1000 and the other end abutting against the front arc-shaped stop 400 or the rear arc-shaped stop 500. During installation, adjust the preload angle of the torsion spring to provide sufficient force to ensure that the lower unlocking element 1000 protrudes from the inclined pushing surface 4011.

[0068] When the unlocking component 1000 rotates, it can drive the front locking hook 700 and the rear locking hook 800 to rotate, thereby causing the front locking hook 700 and the rear locking hook 800 to unhook.

[0069] When the pipe needs to enter the conduit space, it will contact the lower unlocking member 1000 of the protruding inclined pushing surface 4011 during its ascent. As the pipe continues to rise, it exerts an upward thrust on the lower unlocking member 1000, causing it to rotate around its axis. The rotation of the lower unlocking member 1000 drives the front locking hook 700 and the rear locking hook 800 to rotate, thus disengaging them. As the pipe continues to rise, it pushes the inclined pushing surface 4011, causing the front arc-shaped stop 400 and the rear arc-shaped stop 500 to swing outward and open, thus entering the pipe space. Afterward, the front locking hook 700 and the rear locking hook 800 hook together again, while the front arc-shaped stop 400 and the rear arc-shaped stop 500 remain in contact with each other under the action of the third elastic member 600, so as to restrict the front arc-shaped stop 400 and the rear arc-shaped stop 500 from opening outward.

[0070] The design of the lower unlocking component 1000 and the fifth elastic component 1100 enables the pipe-laying machine to automatically unlock the front locking hook 700 and the rear locking hook 800 during unloading, eliminating the need for manual operation and improving the efficiency and safety of unloading.

[0071] This automatic unlocking mechanism works in conjunction with other functions of the equipment to optimize the entire pipeline hoisting process, reduce manual intervention, lower the labor intensity of operators, and also reduce potential safety hazards caused by improper manual operation.

[0072] In some examples, an upper unlocking member 1200 is also included. The upper unlocking member 1200 is rotatably provided at the bottom of the inner wall of the front arc-shaped stop 400 and the rear arc-shaped stop 500. The upper unlocking member 1200 is configured to rotate and drive the front locking hook 700 and the rear locking hook 800 to rotate, so that the front locking hook 700 and the rear locking hook 800 are unhooked. The upper unlocking member 1200 is configured to protrude from the inner wall of the front arc-shaped stop 400 and the rear arc-shaped stop 500, so that it can be pushed and rotated from above by the tube in the tube space. The sixth elastic element 1300 has one end acting on the upper unlocking element 1200 and the other end acting on the front arc-shaped stop 400 or the rear arc-shaped stop 500, and is used to provide the upper unlocking element 1200 with force protruding from the inner wall of the front arc-shaped stop 400 and the rear arc-shaped stop 500.

[0073] For example, the upper unlocking component 1200 is also designed with a right-angled triangular structure in its main body shape. Its hypotenuse protrudes from the inner wall of the front arc-shaped stop 400 and the rear arc-shaped stop 500. The hypotenuse is the force-bearing surface that contacts the pipe surface, so as to better transmit the force of the pipe pushing.

[0074] The upper unlocking component 1200 is rotatably installed at the bottom of the inner wall of the front arc-shaped stop 400 and the rear arc-shaped stop 500 to ensure that the upper unlocking component 1200 rotates flexibly.

[0075] The sixth elastic element 1300 is also a torsion spring, with one end abutting against the front arc-shaped stop 400 or the rear arc-shaped stop 500, and the other end abutting against the bottom of the upper unlocking element 1200, providing the upper unlocking element 1200 with a force that protrudes from the inner wall of the front arc-shaped stop 400 and the rear arc-shaped stop 500.

[0076] When the pipe pushes the upper unlocking component 1200 to rotate, it can drive the front locking hook 700 and the rear locking hook 800 to rotate, so that the front locking hook 700 and the rear locking hook 800 are unhooked.

[0077] As the pipe descends, its outer wall contacts the upper unlocking member 1200, which protrudes from the inner walls of the front arc-shaped stop 400 and the rear arc-shaped stop 500. The pressure generated by the continued descent pushes the upper unlocking member 1200 to rotate around its pivot, compressing the sixth elastic element 1300. During this rotation, the upper unlocking member 1200 also drives the front locking hook 700 and the rear locking hook 800 to rotate, disengaging them. Under the downward pressure of the pipe, the front arc-shaped stop 400 and the rear arc-shaped stop 500 rotate outward, creating space for the pipe to descend smoothly.

[0078] After the pipe is completely removed from the conduit space, the upper unlocking member 1200 rotates in the opposite direction, returning to its initial position protruding from the inner walls of the front arc-shaped stop 400 and the rear arc-shaped stop 500, preparing for the next pipe hoisting. At the same time, the front locking hook 700 and the rear locking hook 800 return to their hookable state under the action of the fourth elastic member 900, waiting to lock again when a new pipe enters the conduit space.

[0079] The upper unlocking component 1200 and the sixth elastic component 1300 provide a reliable unlocking method for situations where the pipe moves downward from the containment space. Together with the lower unlocking component 1000, they improve the automation of the unloading process and further enhance unloading efficiency.

[0080] By adding the upper unlocking component 1200, the equipment can better adapt to different unloading scenarios. Whether it is normal pipeline descent for unloading or some special working conditions, it can ensure that the front and rear locking hooks can be unlocked smoothly, thus improving the equipment's versatility and adaptability.

[0081] This design avoids the safety risks that may arise from manual unlocking during the unloading process. At the same time, through precise structural design and elastic component coordination, it ensures the reliability of the unlocking action of the front and rear locking hooks, enhances the overall safety and stability of the equipment, and reduces hoisting accidents caused by unlocking failures.

[0082] In some examples, such as Figure 7 As shown, the lower unlocking component 1000 and the upper unlocking component 1200 drive the front locking hook 700 and the rear locking hook 800 to rotate via a transmission shaft and a bevel gear.

[0083] For example, the rotating shaft of the lower unlocking component 1000 is connected to the rotating shaft of the front locking hook 700 or the rear locking hook 800 via a transmission shaft. The transmission between the shafts is achieved through bevel gears. When the lower unlocking component 1000 rotates, the transmission shaft drives the front locking hook 700 and the rear locking hook 800 to rotate, thus releasing the hook and unlocking the device. Similarly, the transmission shaft of the upper unlocking component 1200 is connected to the rotating shaft of the front locking hook 700 or the rear locking hook 800 via a single transmission shaft. When the upper unlocking component 1200 rotates, the transmission shaft drives the front locking hook 700 and the rear locking hook 800 to rotate, thus releasing the hook and unlocking the device. The connection between the rotating shaft and the transmission shaft can be designed using bevel gears to ensure transmission even when the shafts are perpendicular. This design ensures that both the upper unlocking component 1200 and the lower unlocking component 1000 can reliably control the unlocking action of the front and rear locking hooks.

[0084] The lower unlocking component 1000, upper unlocking component 1200, front locking hook 700, and rear locking hook 800 are connected by a drive shaft, realizing transmission and ensuring the reliability and stability of the unlocking action. The drive shaft can change the transmission direction, effectively enabling the unlocking of the front locking hook 700 and rear locking hook 800.

[0085] In some examples, the lifting device 200 includes a crossbar 210, a rope 220, and guide wheels 230. The crossbar 210 has a hook groove 211 in the middle for being hooked by the hook 111, and hanging grooves 212 at both ends. The two ends of the rope 220 are respectively hung in the hanging grooves 212 at both ends of the crossbar 210. Several guide wheels 230 are spaced apart on the rope 220, and the guide wheels 230 are used to roll along the outer wall of the pipe along the axial direction of the parallel pipe.

[0086] For example, the crossbar 210 has sufficient strength and rigidity to bear the weight of the pipe, the hook groove 211 in the middle is adapted to the shape of the hook 111 to ensure that the hook 111 can be stably hooked on the crossbar 210, and the hanging grooves 212 at both ends are used to hang the rope 220.

[0087] The rope 220 is made of high-strength synthetic fiber rope. The length of the rope 220 is adjusted according to the actual hoisting height and the length of the pipe to ensure that the pipe can be stably suspended during the hoisting process.

[0088] Both ends of the rope 220 are made into ring loops, with the diameter of the loops slightly larger than the width of the hanging groove 212. The ring loops are then fitted into the hanging groove 212, ensuring a firm and reliable connection.

[0089] The guide roller 230 is connected to the rope body 220 via an axle, with both ends of the axle passing through the rope body 220 and secured with nuts. The spacing between adjacent guide rollers 230 is determined based on the pipe length and hoisting stability to ensure that the pipe is evenly supported during hoisting.

[0090] When the hook 111 rises to lift the lifting device 200, the crossbar 210 lifts the pipe via the rope 220. During the lifting process, if the pipe swings, the guide wheel 230 can roll along the outer wall of the pipe parallel to the pipe axis to change the position of the lifted pipe.

[0091] The guide rollers 230 roll along the outer wall of the pipe, effectively cushioning the pipe's sway during hoisting, making the hoisting smoother, reducing damage to the pipe hoisting machine and the pipe itself caused by pipe swaying, and improving the safety and stability of the hoisting. Furthermore, since the pipes are usually very long, the lifting equipment 200 needs to continuously change its hoisting position to place the pipe into the tunnel. During this process, the guide rollers 230 can continuously roll along the pipe, thus achieving continuous movement of the hoisting position while ensuring the hoisting is completed.

[0092] The lifting device 200 adopts a combination structure of crossbar 210, rope 220 and guide wheel 230. It has a simple structure and is easy to install. At the same time, the components work together to improve the overall performance of the lifting device and meet the needs of pipeline lifting under different working conditions.

[0093] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An all-around pipe-laying machine, characterized in that, include: The traveling vehicle (100) has a rotating boom (110) on one side, the boom (110) can be swung by a wire rope, the boom (110) has a lifting hook (111) that can be lifted and lowered, the hook (111) can be lifted and lowered by another wire rope; A lifting device (200) that can be attached to the hook (111) for lifting pipes; An upper arc-shaped stop (300) is provided on the side of the boom (110) near the hook (111) to block the pipe from the top and sides.

2. The omnidirectional pipe-laying machine according to claim 1, characterized in that, The upper arc-shaped stop (300) is rotatably and slidably disposed on the boom (110), and the sliding direction is along the length direction of the boom (110), and further includes: The first elastic element (310) has one end acting on the boom (110) and the other end acting on the upper arc-shaped stop (300), providing the upper arc-shaped stop (300) with a downward sliding force; An arc-shaped buffer (320) is slidably disposed on the upper arc-shaped stop (300) for contacting the pipe; The second elastic element (330) acts on the arc-shaped buffer (320) at one end and on the upper arc-shaped stop (300) at the other end, providing a force to move the arc-shaped buffer (320) away from the upper arc-shaped stop (300).

3. The omnidirectional pipe-laying machine according to claim 2, characterized in that, The upper arc-shaped stop (300) has a clearance notch (301) for the passage of the wire rope, and the arc-shaped buffer (320) is located on both sides of the clearance notch (301).

4. The omnidirectional pipe-laying machine according to claim 2, characterized in that, Also includes: A front arc-shaped stop (400) and a rear arc-shaped stop (500) are respectively hinged to both ends of the upper arc-shaped stop (300) to form a closed tube space. The front arc-shaped stop (400) and the rear arc-shaped stop (500) have a front abutment end (401) and a rear abutment end (501) respectively, and the front abutment end (401) and the rear abutment end (501) abut against each other. The third elastic element (600) has one end acting on the upper arc-shaped stop (300) and the other end acting on the front arc-shaped stop (400) or the rear arc-shaped stop (500), providing a force for the front abutting end (401) and the rear abutting end (501) to abut against each other.

5. The omnidirectional pipe-laying machine according to claim 4, characterized in that, The lower ends of the front abutment end (401) and the rear abutment end (501) both have inclined pushing surfaces (4011), which are used to be pushed by the tube below, so that the front arc-shaped stop (400) and the rear arc-shaped stop (500) open, thereby allowing the tube to enter the tube space.

6. The omnidirectional pipe-laying machine according to claim 5, characterized in that, Also includes: A front locking hook (700) and a rear locking hook (800) are respectively rotatably mounted on the front abutment end (401) and the rear abutment end (501), and the front locking hook (700) and the rear locking hook (800) can hook each other after rotation; The fourth elastic element (900) has one end acting on the front abutment end (401) or the rear abutment end (501), and the other end acting on the front locking hook (700) or the rear locking hook (800), providing a force for the front locking hook (700) and the rear locking hook (800) to hook each other.

7. The omnidirectional pipe-laying machine according to claim 6, characterized in that, Also includes: The lower unlocking member (1000) is rotatably disposed at the inclined pushing surface (4011). The lower unlocking member (1000) is configured to rotate and drive the front locking hook (700) and the rear locking hook (800) to rotate, so that the front locking hook (700) and the rear locking hook (800) are unhooked. The lower unlocking member (1000) is configured to protrude from the inclined pushing surface (4011) for being pushed and rotated by the tube from below. The fifth elastic element (1100) has one end acting on the lower unlocking member (1000) and the other end acting on the front arc-shaped stop (400) or the rear arc-shaped stop (500) to provide the force for the lower unlocking member (1000) to protrude from the inclined pushing surface (4011).

8. The omnidirectional pipe-laying machine according to claim 7, characterized in that, Also includes: The upper unlocking member (1200) is rotatably provided at the bottom of the inner wall of the front arc-shaped stop (400) and the rear arc-shaped stop (500). The upper unlocking member (1200) is configured to rotate and drive the front locking hook (700) and the rear locking hook (800) to rotate, so that the front locking hook (700) and the rear locking hook (800) are unhooked. The upper unlocking member (1200) is configured to protrude from the inner wall of the front arc-shaped stop (400) and the rear arc-shaped stop (500) for being pushed and rotated from above by the tube in the tube space. The sixth elastic element (1300) acts on the upper unlocking element (1200) at one end and on the front arc-shaped stop (400) or the rear arc-shaped stop (500) at the other end, and is used to provide the upper unlocking element (1200) with force protruding from the inner wall of the front arc-shaped stop (400) and the rear arc-shaped stop (500).

9. A 360-degree pipe-laying machine according to claim 8, characterized in that, The lower unlocking member (1000) and the upper unlocking member (1200) drive the front locking hook (700) and the rear locking hook (800) to rotate via a transmission shaft and a bevel gear.

10. A 360-degree pipe-laying machine according to any one of claims 1-9, characterized in that, The lifting device (200) includes: A crossbar (210) has a hook groove (211) in the middle for being hooked by the hook (111) and hanging grooves (212) at both ends. The rope (220) has its two ends hung in the hanging grooves (212) at both ends of the crossbar (210); Guide wheels (230), a plurality of guide wheels (230) are spaced apart on the rope body (220), the guide wheels (230) are used to roll along the outer wall of the tube along the axial direction of the parallel tube.

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