Pipeline transfer device

Abstract

The invention relates to a pipeline transfer device which comprises a frame, tires, a handle and a fixed arc-shaped hook part, the tires, the handle and the fixed arc-shaped hook part are arranged on the frame, a movable arc-shaped hook part is arranged at the end, close to the handle, of the fixed arc-shaped hook part, and the middle of the movable arc-shaped hook part can rotate along the fixed arc-shaped hook part. The movable arc-shaped hook piece can rotate to be concentric with the fixed arc-shaped hook piece to form a major arc-shaped containing space, a locking mechanism is arranged between the movable arc-shaped hook piece and the fixed arc-shaped hook piece, and the locking mechanism is used for locking the movable arc-shaped hook piece when the movable arc-shaped hook piece and the fixed arc-shaped hook piece are concentric. Pipeline loading can be achieved through one person, operation is easy, and the loading success rate is high; when the pipeline is unloaded, the dumping speed of the pipeline dumping device can be controlled by an operator, the pipeline cannot fall off in the dumping process, the pipeline damage probability is reduced, and the unloading safety is improved; in the transferring process, the pipeline can be fixed, and the situation that the pipeline falls off from the pipeline transferring device during uphill and downhill is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of transport vehicles, and in particular to a pipeline transport device. Background Art

[0002] With the progress of the times, more and more pipes are used in modern buildings. Steel pipes of various diameters are gradually used in water supply and drainage, fire protection and other fields. Conventional steel pipes are often transported horizontally on site by manpower. Small-diameter pipes are relatively simple, but large-diameter pipes often require multiple people to carry them together. With the increase in labor costs, this method is gradually not feasible.

[0003] At present, simple pipe transport carts have appeared on many construction sites, such as "A Steel Pipe Transport Cart" with publication number CN221914294U. It contacts the round pipes through an arc-shaped structure, which effectively prevents the pipes from rolling and hitting people during transportation. However, when loading and unloading the pipes, two people are required to cooperate to complete the loading of the pipes. One person lifts the pipes, and the other person operates the cart to insert the side of the arc-shaped structure from under the pipes and tilt it upward to achieve loading. In addition, during the tilting process, the loading may fail because the arc-shaped structure is not in place; during the unloading process, the operator lifts the handle, causing the arc-shaped structure to tilt, and the pipe falls from the arc-shaped structure. The speed of the fall is fast, and the cart tilts up with it, which is easy to accidentally injure the operator, so the number of operators is high, and there is a risk of the pipe falling and being damaged; in addition, during transportation, when encountering uphill and downhill slopes, the tilt of the cart is easy to cause the pipe to fall. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pipeline transfer device which is convenient for loading and unloading and prevents the pipeline from falling.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a pipeline transfer device, including a frame and a tire, a handle and a fixed arc-shaped hook arranged on the frame, the fixed arc-shaped hook is provided with a movable arc-shaped hook at the end close to the handle, the middle part of the movable arc-shaped hook can rotate along the fixed arc-shaped hook, the movable arc-shaped hook can be rotated to form an optimal arc-shaped accommodating space when it is concentric with the fixed arc-shaped hook, a locking mechanism is provided between the movable arc-shaped hook and the fixed arc-shaped hook, the locking mechanism is used to lock the movable arc-shaped hook when the movable arc-shaped hook is concentric with the fixed arc-shaped hook, the optimal arc is an arc with a central angle greater than 180°, the pipeline is arranged in the optimal arc-shaped accommodating space, the risk of the pipeline falling can be effectively prevented during the transfer process, during the process of loading the pipeline, there is no need to manually lift the pipe, and only one person needs to operate the trolley to complete it, during the process of unloading the pipeline, since the pipeline is fixed by the optimal arc-shaped accommodating space, the trolley can be slowly dumped manually, and the locking mechanism is unlocked after the trolley is completely dumped to complete the unloading, the pipeline falling can be controlled, and the risk of pipeline damage is avoided.

[0006] Furthermore, the fixed arc hook is a semicircular arc, the movable arc hook is a semicircular arc, and the radii corresponding to the fixed arc hook and the movable arc hook are equal, which can form an optimal arc with the largest possible central angle, thereby achieving a better fixing effect on the pipeline.

[0007] Furthermore, a torsion spring is provided between the movable arc-shaped hook and the fixed arc-shaped hook, and the torsion spring is used to maintain a certain angle between the movable arc-shaped hook and the fixed arc-shaped hook. The torsion spring is used to ensure that the movable arc-shaped hook is not concentric with the fixed arc-shaped hook when the trolley tilts, and the angle should be between 45° and 180°.

[0008] Furthermore, the locking mechanism is arranged outside the fixed arc-shaped hook, and a window is provided on the fixed arc-shaped hook for the locking mechanism to lock the movable arc-shaped hook, thereby ensuring that the movable arc-shaped hook and the fixed arc-shaped hook form a complete arc-shaped accommodation space.

[0009] Furthermore, the locking mechanism includes a pawl, a ratchet and a rotating hook rotatably arranged on the fixed arc-shaped hook. The rotating hook is coaxially arranged with the ratchet. A lever is provided on the side of the movable arc-shaped hook close to the locking mechanism. A lever groove adapted to the lever is provided on the rotating hook. The lever can drive the rotating hook to rotate in the lever groove. The ratchet pawl can ensure that the movable arc-shaped hook rotates in one direction. When the movable arc-shaped hook is about to be concentric with the fixed arc-shaped hook, locking can be achieved. At the same time, the problem of shaking of the movable arc-shaped hook after locking can be avoided.

[0010] Furthermore, the rotation axes of the rotating hook and the ratchet are parallel to the rotation axis of the movable arc-shaped hook, and the shifting rod is parallel to the rotation axis of the movable arc-shaped hook.

[0011] Furthermore, the pawl is arranged on a side of the ratchet close to the handle, and a toggle part for rotating the pawl is provided on the pawl. When the trolley tilts, the handle and the pawl face upward, and the pawl can be locked with the ratchet by gravity. The toggle part is used by the operator to toggle to unlock, which makes unlocking convenient.

[0012] Furthermore, a first limiting portion for limiting the rotating hook is provided between the fixed arc-shaped hook and the rotating hook, and a second limiting portion for limiting the rotating hook is provided between the pawl and the rotating hook. The first limiting portion prevents the rotating hook from continuing to rotate due to inertia when the lever leaves the shift slot, so that the direction of the shift slot opening changes, thereby solving the problem that the lever cannot enter the shift slot next time, and the second limiting portion solves the problem that the rotating hook rotates too much.

[0013] Furthermore, the frame includes a first reinforcement frame and a second reinforcement frame, the first reinforcement frame and the second reinforcement frame are A-shaped, the bottoms of the first reinforcement frame and the second reinforcement frame are connected to the tire, and the tops of the first reinforcement frame and the second reinforcement frame are respectively welded to both ends of the fixed arc-shaped hook. The frame has high strength and is hollow in the middle, which is convenient for the operator to unlock the locking mechanism.

[0014] Furthermore, the handle includes a first connecting rod and a second connecting rod, the first connecting rod is fixedly connected to the frame, the second connecting rod is rotatably connected to the first connecting rod, and a limiter is provided between the first connecting rod and the second connecting rod to prevent the handle from accidentally injuring the operator when loading and unloading the pipeline.

[0015] The beneficial effects of the present invention are as follows: the present invention can be operated by one person to realize pipeline loading, the operation is simple, and the loading success rate is high; when the pipeline is unloaded, the operator can control the dumping speed of the present invention, the pipeline will not fall during the dumping process, the probability of pipeline damage is reduced, and the safety of unloading is improved; the present invention can fix the pipeline during the transportation process to prevent the pipeline from falling from the present invention when going uphill or downhill. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 - A three-dimensional diagram of the present invention;

[0017] Figure 2 — A three-dimensional view of the present invention when loading a pipe;

[0018] Figure 3 - A three-dimensional diagram of the present invention in loading and unloading state;

[0019] Figure 4 —Schematic diagram of the process of filling the pipeline according to the present invention;

[0020] Figure 5 — Schematic diagram of the process of unloading a pipeline according to the present invention;

[0021] Figure 6 - A three-dimensional cross-sectional view of the locking mechanism of the present invention;

[0022] Figure 7 —A three-dimensional diagram of the fixed arc-shaped hook member of the present invention;

[0023] Figure 8 —Schematic diagram of the working process of the locking mechanism of the present invention;

[0024] Fig. 9 - A three-dimensional view of the frame of the present invention;

[0025] Fig.10 - A three-dimensional diagram of the handle of the present invention;

[0026] In the figure: 1-frame, 11-first reinforcement frame, 12-second reinforcement frame, 2-tire, 3-handle, 31-first connecting rod, 32-second connecting rod, 33-limiting member, 4-fixed arc hook, 41-window, 5-movable arc hook, 51-shift lever, 6-locking mechanism, 61-pawl, 62-ratchet, 63-rotating hook, 64-shift groove, 65-shift part, 66-first limiting part, 67-second limiting part, 7-optimal arc accommodating space. DETAILED DESCRIPTION

[0027] Reference Figures 1 to 3 :A pipeline transfer device of this embodiment includes a frame 1 and a tire 2, a handle 3, and a fixed arc-shaped hook 4 arranged on the frame 1. The fixed arc-shaped hook 4 is provided with a movable arc-shaped hook 5 at the end close to the handle 3. The middle part of the movable arc-shaped hook 5 can rotate along the fixed arc-shaped hook 4. The movable arc-shaped hook 5 can rotate to be concentric with the fixed arc-shaped hook 4 to form an arc-shaped accommodation space 7. A locking mechanism 6 is provided between the movable arc-shaped hook 5 and the fixed arc-shaped hook 4. The locking mechanism 6 is used to lock the movable arc-shaped hook 5 and the fixed arc-shaped hook 4 when the movable arc-shaped hook 5 is concentric with the fixed arc-shaped hook 4. When locking the movable arc hook 5, the fixed arc hook 4 is a semicircular arc, the movable arc hook 5 is a semicircular arc, the radius corresponding to the fixed arc hook 4 is equal to that of the movable arc hook 5, and is equal to the radius of the pipe to be transported, the central angle of the optimal arc accommodating space 7 formed in this embodiment is 270°, and when the movable arc hook 5 is concentric with the fixed arc hook 4, the side of the movable arc hook 5 relative to the rotating shaft can partially overlap with the fixed arc hook 4, and the movable arc hook 5 and the fixed arc hook 4 are made of steel bars and / or iron plates bent and welded.

[0028] A torsion spring is provided between the movable arc hook 5 and the fixed arc hook 4, which is not shown in the figure. The torsion spring is provided on the rotating shaft of the movable arc hook 5. The torsion spring is used to make the movable arc hook 5 and the fixed arc hook 4 form a certain angle when the trolley is tilted. The angle in this embodiment is 80°, which is the angle between the tangents of the movable arc hook 5 and the fixed arc hook 4. In other embodiments, the angle can also be between 45° and 180°. Figure 3 As shown, when the present invention is tilted, the lowest point of the movable arc-shaped hook 5 should not exceed its own rotation axis, otherwise the pipe cannot cause the movable arc-shaped hook 5 to rotate, and the angle is 180° at this time; in addition, when the present invention is tilted, the highest point of the movable arc-shaped hook 5 should not be lower than its own rotation axis, otherwise the pipe cannot enter the optimal arc-shaped accommodating space 7.

[0029] The locking mechanism 6 is arranged outside the fixed arc hook 4 , and a window 41 is opened on the fixed arc hook 4 for the locking mechanism 6 to lock the movable arc hook 5 , ensuring that the movable arc hook 5 and the fixed arc hook 4 form a complete arc-shaped accommodating space 7 .

[0030] Reference Figure 4 As shown, the steps of loading the pipeline of the present invention include A1 to A5, A1: the present invention is tilted until the end of the fixed arc hook 4 away from the handle 3 contacts the ground, pushing the present invention close to the pipe; A2: in the process of the present invention approaching the pipe, the movable arc hook 5 is affected by the pipe and rotates; A3: when the movable arc hook 5 rotates to connect with the locking mechanism 6, the movable arc hook 5 is concentric with the fixed arc hook 4 to form an arc-shaped accommodating space 7, and the pipeline is fixed; A4: the operator presses against the tire 2 and pulls the handle 3 to make the present invention stand upright; A5: when the center of gravity of the present invention moves to the side of the center of the tire 2 close to the handle 3, the pipeline loading is completed.

[0031] Reference Figure 5 As shown, the steps of unloading the pipeline of the present invention include B1 to B6, B1: after the present invention is transported to the destination, the center of gravity is located on the side of the center of the tire 2 close to the handle 3; B2: the operator bends the handle 3 and kicks it with his foot to make the present invention fall over; B3: when the center of gravity of the present invention moves to the side of the center of the tire 2 away from the handle 3, the gravity of the present invention itself will cause the present invention to fall over, and the operator can apply force to change the falling speed of the present invention; B4: when the present invention is completely fallen over, the operator unlocks the locking mechanism 6 by kicking it; B5: the movable arc hook 5 is rotated by the reset force of the torsion spring, and at the same time, the gravity of the pipeline itself causes the pipeline to roll out of the present invention. If the pipeline rolls out smoothly, the operator can operate the present invention to move in the direction away from the pipeline; B6: the pipeline is completely separated from the present invention, and the pipeline unloading is completed.

[0032] Reference Figure 6-7As shown, the locking mechanism 6 includes a pawl 61, a ratchet 62 and a rotating hook 63 rotatably arranged on the fixed arc-shaped hook 4, the rotating hook 63 and the ratchet 62 are coaxially arranged, the rotating hook 63 is arranged on both sides of the ratchet 62, the ratchet 62 is smaller than the rotating hook 63, the rotating hook 63 is circular, and a lever 51 is provided on the side of the movable arc-shaped hook 5 close to the locking mechanism 6, and a shifting groove 64 adapted to the shifting rod 51 is provided on the rotating hook 63, and the shifting rod 51 can drive the rotating hook 63 to rotate in the shifting groove 64, and the rotation axis of the rotating hook 63 and the ratchet 62 is parallel to the rotation axis of the movable arc-shaped hook 5, and the shifting rod 51 is parallel to the rotation axis of the movable arc-shaped hook 5; the pawl 61 is arranged on the side of the ratchet 62 close to the handle 3, and when the present invention is tipped, the pawl 6 1 can be locked with the ratchet 62 due to gravity. In other embodiments, a spring can be added to the pawl 61 to form an elastic pawl 61. The pawl 61 is provided with a toggle portion 65 for rotating the pawl 61. The toggle portion 65 is a flat plate, which is convenient for operators to operate. A first limiting portion 66 for limiting the rotating hook 63 is provided between the fixed arc hook 4 and the rotating hook 63. The first limiting portion 66 is located below the toggle slot 64 and can form a limit with the fixed arc hook 4 to ensure that the opening direction of the toggle slot 64 is aligned with the window 41, thereby ensuring that the toggle rod 51 is smoothly inserted into the toggle slot 64. A second limiting portion 67 for limiting the rotating hook 63 is provided between the pawl 61 and the rotating hook 63. The second limiting portion 67 is located above the toggle slot 64 and can form a limit with the pawl 61.

[0033] Reference Figure 8 As shown: the action of the locking mechanism 6 of the present invention includes steps C1 to C4, C1: the movable arc-shaped hook 5 and the lever 51 at the end rotate toward the lever groove 64 of the locking mechanism 6, C2: the lever 51 is inserted into the lever groove 64 and continues to rotate. At this time, the ratchet 62 cannot rotate counterclockwise due to the limitation of the pawl 61, so locking is achieved, that is, when the movable arc-shaped hook 5 is not completely concentric with the fixed arc-shaped hook 4, locking is achieved. In theory, locking can be achieved by inserting the lever 51 into the lever groove 64; C3: the movable arc-shaped hook 5 is concentric with the fixed arc-shaped hook 4 to form an optimal arc-shaped accommodating space 7; C4: when unlocking is required, the operator lifts the toggle part 65 to make the pawl 61 away from the ratchet 62 to achieve unlocking, and the rotating hook 63 can rotate counterclockwise at this time.

[0034] Reference Fig. 9 As shown: the frame 1 includes a first reinforcement frame 11 and a second reinforcement frame 12, the first reinforcement frame 11 and the second reinforcement frame 12 are A-shaped, the bottoms of the first reinforcement frame 11 and the second reinforcement frame 12 are connected to the tire 2, and the tops of the first reinforcement frame 11 and the second reinforcement frame 12 are respectively welded to the two ends of the fixed arc hook 4. The frame 1 has high strength and is hollow in the middle, which is convenient for the operator to unlock the locking mechanism 6.

[0035] Reference Fig.10 As shown: the handle 3 includes a first connecting rod 31 and a second connecting rod 32, the first connecting rod 31 is fixedly connected to the frame 1, the second connecting rod 32 is rotatably connected to the first connecting rod 31, and a limiter 33 is provided between the first connecting rod 31 and the second connecting rod 32 to prevent the handle 3 from accidentally injuring the operator when loading and unloading the pipeline.

[0036] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A pipeline transfer device, comprising a frame (1), a tire (2), a handle (3), and a fixed arc-shaped hook (4) arranged on the frame (1), characterized in that: A movable arc-shaped hook (5) is provided at the end of the fixed arc-shaped hook (4) close to the handle (3); the middle part of the movable arc-shaped hook (5) can rotate along the fixed arc-shaped hook (4); the movable arc-shaped hook (5) can rotate to be concentric with the fixed arc-shaped hook (4) to form an arc-shaped accommodation space (7); a locking mechanism (6) is provided between the movable arc-shaped hook (5) and the fixed arc-shaped hook (4); the locking mechanism (6) is used to lock the movable arc-shaped hook (5) when the movable arc-shaped hook (5) is concentric with the fixed arc-shaped hook (4).

2. A pipeline transfer device according to claim 1, characterized in that: The fixed arc-shaped hook (4) is a semicircular arc, the movable arc-shaped hook (5) is a semicircular arc, and the corresponding radii of the fixed arc-shaped hook (4) and the movable arc-shaped hook (5) are equal.

3. A pipeline transfer device according to claim 1, characterized in that: A torsion spring is provided between the movable arc-shaped hook (5) and the fixed arc-shaped hook (4), and the torsion spring is used to maintain a certain angle between the movable arc-shaped hook (5) and the fixed arc-shaped hook (4).

4. A pipeline transport device according to any one of claims 1 to 3, characterized in that: The locking mechanism (6) is arranged outside the fixed arc-shaped hook (4), and a window (41) is provided on the fixed arc-shaped hook (4) for the locking mechanism (6) to lock the movable arc-shaped hook (5).

5. A pipeline transfer device according to claim 4, characterized in that: The locking mechanism (6) comprises a ratchet pawl (61) rotatably arranged on the fixed arc-shaped hook (4), a ratchet wheel (62) and a rotating hook (63); the rotating hook (63) and the ratchet wheel (62) are coaxially arranged; a shifting rod (51) is arranged on one side of the movable arc-shaped hook (5) close to the locking mechanism (6); a shifting groove (64) adapted to the shifting rod (51) is arranged on the rotating hook (63); the shifting rod (51) can drive the rotating hook (63) to rotate in the shifting groove (64).

6. A pipeline transfer device according to claim 5, characterized in that: The rotation axes of the rotating hook (63) and the ratchet (62) are parallel to the rotation axis of the movable arc-shaped hook (5), and the shifting rod (51) is parallel to the rotation axis of the movable arc-shaped hook (5).

7. A pipeline transfer device according to claim 5, characterized in that: The pawl (61) is arranged on a side of the ratchet wheel (62) close to the handle (3), and a shifting portion (65) for rotating the pawl (61) is provided on the pawl (61).

8. The pipeline transfer device according to claim 5, characterized in that: A first limiting portion (66) for limiting the position of the rotating hook (63) is provided between the fixed arc-shaped hook (4) and the rotating hook (63), and a second limiting portion (67) for limiting the position of the rotating hook (63) is provided between the ratchet (61) and the rotating hook (63).

9. A pipeline transfer device according to any one of claims 1 to 3, characterized in that: The vehicle frame (1) comprises a first reinforcement frame (11) and a second reinforcement frame (12); the first reinforcement frame (11) and the second reinforcement frame (12) are in an A shape; the bottoms of the first reinforcement frame (11) and the second reinforcement frame (12) are connected to the tire (2); and the tops of the first reinforcement frame (11) and the second reinforcement frame (12) are respectively welded to two ends of a fixed arc-shaped hook (4).

10. A pipeline transfer device according to any one of claims 1 to 3, characterized in that: The handle (3) comprises a first connecting rod (31) and a second connecting rod (32); the first connecting rod (31) is fixedly connected to the frame (1); the second connecting rod (32) is rotatably connected to the first connecting rod (31); and a limiting member (33) is provided between the first connecting rod (31) and the second connecting rod (32).

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