High-altitude auxiliary walkway for derrick

Abstract

The utility model relates to a derrick high-altitude auxiliary walkway, which relates to the technical field of petroleum machinery equipment, and comprises a walkway long frame horizontally arranged at the side end of a derrick along the length direction of a horizontal derrick and a plurality of groups of fixed piles vertically fixed at the upper side end of the derrick, and a worker walks along the upper side end of the walkway long frame. Each group of fixed piles comprises two fixed piles which are arranged at intervals, a positioning steel wire rope is connected between the two fixed piles in the same group, a hook lock is detachably hooked on the positioning steel wire rope, and the hook lock is hooked on the positioning steel wire rope and moves in the length direction of the positioning steel wire rope; the hook lock switches hooking between the two adjacent positioning steel wire ropes, and the hook lock is connected with a safety rope hooked to a worker. The horizontal derrick has the beneficial effects that the horizontal derrick is more convenient and safer to overhaul and maintain.

Description

Technical Field

[0001] This utility model relates to the field of petroleum machinery and equipment technology, and in particular to a high-altitude auxiliary walkway for derricks. Background Technology

[0002] A derrick is a device used during drilling or well workover to house the overhead crane, suspend traveling blocks, hooks, lifting rings, clamps, and other equipment, and to handle the raising, lowering, and storage of drill pipe, tubing, and sucker rods. A derrick consists of the main body, crane platform, crane frame, second-level platform, riser platform, and working ladder. Drilling derricks can be classified into four basic types based on their overall structural characteristics: tower derricks, front-opening derricks, A-type derricks, and mast derricks.

[0003] Before the derrick is fully erected and put into use, it needs to be thoroughly inspected and maintained. At this time, the derrick is in a near-horizontal state. Due to the large size of the entire derrick, even when laid flat, its height still exceeds the height required for conventional safe construction. It would be very unsafe to continuously lift and move maintenance personnel using external cranes or other equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides an aerial auxiliary walkway for derricks, which solves the technical problem that the process of continuously lifting and moving maintenance personnel to inspect and maintain the horizontally laid derrick using external cranes and other equipment is very unsafe.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model embodiment provides an aerial auxiliary walkway for a derrick, including a walkway frame horizontally arranged at the side end of the derrick along its length and multiple sets of fixed stakes vertically fixed to the upper end of the derrick. Workers walk along the upper end of the walkway frame. Each set of fixed stakes includes two stakes arranged at intervals. A positioning steel wire rope connects the two stakes in the same set. A hook lock is detachably hooked on the positioning steel wire rope. The hook lock is hooked to the positioning steel wire rope and moves along the length of the positioning steel wire rope. The hook lock switches between two adjacent positioning steel wire ropes. A safety rope for the worker is connected to the hook lock.

[0009] This utility model provides an aerial auxiliary walkway for derricks. When inspecting and maintaining a horizontally placed derrick through this walkway, maintenance personnel secure a safety rope to themselves, then hook a grappling hook onto a steel wire rope. They can then walk along the walkway and perform maintenance. After walking a certain distance, the grappling hook is moved from one positioning steel wire rope to another, and then the maintenance can continue. This solution makes the inspection and maintenance of horizontally placed derricks more convenient and safer.

[0010] Optionally, the walkway frame is rotatably connected to the side of the derrick via a pivot, the pivot of the walkway frame is parallel to the length direction of the derrick, and a detachable support column is rotatably provided on the side of the walkway frame away from the derrick.

[0011] By rotating the entire walkway frame to the side of the derrick, it is more convenient to simply rotate and open the walkway frame when in use, then rotate the support column and fix the support column to the side of the derrick. When not in use, simply rotate the walkway frame to fit against the side of the derrick and fix it, thus not affecting the installation of other components on the derrick.

[0012] Optionally, the walkway frame includes long poles spaced apart along its length, reinforcing poles spaced apart between two of the long poles, and a support mesh plate laid and fixed to the upper ends of the reinforcing poles and the long poles.

[0013] By setting the entire walkway frame as two parallel long poles, connecting the long poles with ear canals and reinforcing rods, and supporting mesh plates, the overall weight of the walkway frame is reduced, thus reducing the burden when the derrick is erected. On the other hand, the supporting mesh plates can increase the friction between the derrick and the feet of maintenance personnel, making it safer.

[0014] Optionally, the cross-sections of the long rod and the reinforcing rod along their length direction are "L" shaped.

[0015] By setting the cross-sections of the long rods and reinforcing rods to an "L" shape, the weight is reduced while ensuring sufficient structural strength.

[0016] Optionally, the upper end of the support mesh plate is provided with multiple handrails via torsion springs on the side away from the derrick. Each handrail has a hand grip vertically positioned at the end away from the support mesh plate. The rotation axis of the handrail and the hand grip are parallel to the length of the derrick. A blocking block is provided on the upper end of the support mesh plate on the side of the handrail away from the derrick. When the handrail rotates to be perpendicular to the upper end of the support mesh plate, it abuts against the blocking block. A positioning component is provided on the upper end of the support mesh plate on the side near the derrick to position the hand grip close to the upper end of the support mesh plate.

[0017] When maintenance personnel walk on the long walkway frame, there is no protection on either side. Even with safety ropes and positioning wire ropes, it is still easy for maintenance personnel to feel afraid, thus increasing the risk of accidents. In this solution, a torsion spring is used to rotate and connect the handrail posts. When maintenance personnel walk on the support mesh plate, the handrail posts are rotated to be perpendicular to the support mesh plate by the torsion spring. At this time, maintenance personnel can hold onto the handrails to move, which is safer. When not in use, it is only necessary to rotate the handrail posts to abut against the support mesh plate and then use the positioning components to position the handrails, which is more convenient.

[0018] Optionally, a positioning ring is provided at the end of the hand grip rod away from the hand support column. The axis of the positioning ring is parallel to the axis of the hand grip rod. The positioning assembly includes a positioning tube arranged parallel to the length direction of the derrick, a compression spring coaxially fixed in the positioning tube, a positioning slide rod with one end connected to the compression spring and slidably disposed in the positioning tube, and a positioning insert rod arranged parallel to the positioning slide rod. The end of the positioning slide rod away from the compression spring protrudes from one end of the positioning tube, pushing the positioning slide rod to compress the compression spring. A positioning groove is provided on the side end of the positioning tube for the positioning ring to be inserted. The positioning insert rod is reset and inserted into the positioning ring along with the positioning slide rod.

[0019] When maintenance personnel need to hold the handrail, they do not need to bend over. They only need to kick the positioning slide rod that passes through the positioning tube, so that the positioning rod moves synchronously and passes through the positioning ring. At this time, the handrail column rotates and pops out under the action of the torsion spring, which is more convenient.

[0020] Optionally, each worker is equipped with two safety ropes and carries two hooks, which are hooked onto the two adjacent positioning wire ropes when the worker switches between them.

[0021] By securing two safety ropes and two hooks to each worker, it is possible to ensure that one hook is always attached to the positioning wire rope when changing the hook, thus enhancing safety.

[0022] Optionally, the fixed pile includes a rotating pile welded and fixed to the side end of the derrick and a vertical pile rotatably connected to the rotating pile. The rotating pile has two pin holes, and the line connecting the two pin holes and the rotation axis of the vertical pile is perpendicular to each other. The vertical pile has positioning holes that align with the two pin holes as it rotates, and positioning pins inserted into the pin holes are inserted into the positioning holes.

[0023] By setting the fixed piles to be rotatably connected to the side of the derrick, it is more convenient to erect or lay flat as needed.

[0024] (III) Beneficial Effects

[0025] The beneficial effects of this utility model are as follows: When the maintenance personnel use the high-altitude auxiliary walkway of this utility model to inspect and maintain the horizontally placed derrick, they can secure the safety rope to themselves, hook the hook onto the steel wire rope, and then walk along the walkway frame to carry out maintenance. After walking a certain distance, the hook can be moved from one positioning steel wire rope to another positioning steel wire rope, and then the walking and maintenance can continue. This solution makes the inspection and maintenance of the horizontally placed derrick more convenient and safer. Attached Figure Description

[0026] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0027] Figure 2 This is a second-view perspective perspective view of an embodiment of the present utility model;

[0028] Figure 3 This is a partial explosion diagram of an embodiment of the present invention;

[0029] Figure 4 for Figure 3 Enlarged view of point A.

[0030] [Explanation of Labels in the Attached Image]

[0031] 1. Walkway frame; 11. Support column; 12. Long pole; 13. Reinforcing pole; 14. Support mesh panel; 15. Handrail column; 16. Handrail handle; 161. Positioning ring; 17. Blocking block; 18. Positioning component; 181. Positioning tube; 1811. Positioning groove; 182. Compression spring; 183. Positioning slide rod; 184. Positioning insert rod; 2. Fixed pile; 21. Rotating pile; 211. Pin hole; 22. Vertical pile; 221. Positioning hole; 23. Positioning pin; 3. Positioning wire rope; 4. Hook lock; 41. Safety rope. Detailed Implementation

[0032] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The high-altitude auxiliary walkway for derricks proposed in this embodiment allows maintenance personnel to secure safety ropes to themselves when inspecting and maintaining a horizontally placed derrick. They then hook the hook onto a steel wire rope and can walk along the walkway for maintenance. After walking a certain distance, the hook can be moved from one positioning steel wire rope to another, and then the maintenance can continue. This solution makes the inspection and maintenance of horizontally placed derricks more convenient and safer.

[0034] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0035] Reference Figure 1 and Figure 2 An auxiliary walkway for a derrick at high altitude includes a walkway frame 1 horizontally set at the side end of the derrick along the length of the derrick and multiple sets of fixed piles 2 vertically fixed to the upper side end of the derrick.

[0036] Workers walk along the upper side of the long walkway frame 1. Each group of fixed stakes 2 consists of two stakes arranged at intervals. A positioning steel wire rope 3 connects the two stakes 2 in the same group. A hook lock 4 is detachably hooked onto the positioning steel wire rope 3. The hook lock 4 is hooked onto the positioning steel wire rope 3 and moves along the length of the positioning steel wire rope 3. The hook lock 4 switches between two adjacent positioning steel wire ropes 3. A safety rope 41 is attached to the hook lock 4 and hooked onto the worker. The maintenance worker secures the safety rope 41 to himself, then hooks the hook lock 4 onto the steel wire rope. He can then walk along the long walkway frame 1 to carry out maintenance. After walking a certain distance, he moves the hook lock 4 from one positioning steel wire rope 3 to another positioning steel wire rope 3, and then continues walking and maintenance.

[0037] The walkway frame 1 is rotatably connected to the side of the derrick via a pivot. The pivot of the walkway frame 1 is parallel to the length of the derrick. The side of the walkway frame 1 furthest from the derrick is rotatably connected to a detachable support column 11 that is supported on the side of the derrick. In use, simply rotate the walkway frame 1 to open it, then rotate the support column 11 to fix it to the side of the derrick, which is more convenient. When not in use, simply rotate the walkway frame 1 to fit against the side of the derrick and fix it, thus not affecting the installation of other components on the derrick.

[0038] The walkway frame 1 includes long poles 12 spaced apart along its length, reinforcing poles 13 welded between two long poles 12 at intervals, and support mesh plates 14 welded and fixed to the upper ends of the reinforcing poles 13 and long poles 12. The cross-sections of the long poles 12 and reinforcing poles 13 along their length are L-shaped. This design makes the entire walkway frame 1 lighter, reducing the burden when the derrick is erected. Furthermore, the support mesh plates 14 increase friction with the feet of maintenance personnel, enhancing safety.

[0039] See Figure 3 and Figure 4Multiple handrail columns 15 are rotatably mounted on the upper end of the support mesh plate 14 on the side away from the derrick via torsion springs. A handrail handle 16 is vertically welded to the end of each handrail column 15 away from the support mesh plate. The rotation axis of the handrail column 15 and the handrail handle 16 are parallel to the length direction of the derrick. A blocking block 17 is welded to the upper surface of the support mesh plate 14 on the side of the handrail column 15 away from the derrick. When the handrail column 15 rotates to be perpendicular to the upper surface of the support mesh plate 14, it abuts against the blocking block 17. A positioning component 18 for positioning the handrail handle 16 is provided on the upper surface of the support mesh plate 14 near the derrick, and a positioning ring 1 is welded to the end of the handrail handle 16 away from the handrail column 15. 61. The axis of the positioning ring 161 is parallel to the axis of the hand grip 16. The positioning assembly 18 includes a positioning tube 181 arranged parallel to the length direction of the derrick, a compression spring 182 coaxially fixed in the positioning tube 181, a positioning slide rod 183 connected to the compression spring 182 and slidably disposed in the positioning tube 181, and a positioning insert rod 184 arranged parallel to the positioning slide rod 183. The end of the positioning slide rod 183 away from the compression spring 182 passes through the end of the positioning tube 181. Pushing the positioning slide rod 183 compresses the compression spring 182. A positioning groove 1811 for the positioning ring 161 to be inserted is opened on the side end of the positioning tube 181. The positioning insert rod 184 is reset and inserted into the positioning ring 161 along with the positioning slide rod 183. When maintenance personnel walk on the support mesh plate 14, they do not need to bend over. They only need to kick the positioning slide rod 183 that passes through the positioning tube 181, so that the positioning insert rod 184 moves synchronously and passes through the positioning ring 161. At this time, the handrail column 15 rotates under the drive of the torsion spring until it abuts against the abutment block and is perpendicular to the support mesh plate 14. At this time, maintenance personnel can hold the handrail 16 to move, which is safer. When not in use, they only need to rotate the handrail column 15 to abut against the support mesh plate 14, and then position the handrail 16 through the positioning component 18, which is more convenient.

[0040] The fixed pile 2 includes a rotating pile 21 welded and fixed to the side end of the derrick, and a vertical pile 22 rotatably connected to the rotating pile 21 via a rotating shaft. The rotating pile 21 has two pin holes 211, the line connecting the two pin holes 211 and the rotation axis of the vertical pile 22 being perpendicular to each other. The vertical pile 22 has positioning holes 221 that align with the two pin holes 211 as it rotates, and positioning pins 23 inserted into the pin holes 211 pass through the positioning holes 221. The fixed pile 2 is designed to be rotatably connected to the side end of the derrick, making it easier to erect or lower as needed.

[0041] See Figure 1 Each worker is equipped with two safety ropes 41 and two hooks 4. The two hooks 4 are hooked onto the two adjacent positioning wire ropes 3 when the worker switches between them. This ensures that when changing the positioning wire rope 3, there is always one hook 4 attached to the positioning wire rope 3, making it safer.

[0042] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is 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 "beneath" the second feature can mean that the first feature is 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.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-altitude auxiliary walkway for derricks, characterized in that: The system includes a walkway frame (1) horizontally positioned along the length of the derrick and multiple sets of fixed piles (2) vertically fixed to the upper end of the derrick. Workers walk along the upper end of the walkway frame (1). Each set of fixed piles (2) consists of two piles arranged at intervals. A positioning steel wire rope (3) connects the two fixed piles (2) in the same set. A hook lock (4) is detachably hooked onto the positioning steel wire rope (3). The hook lock (4) hooks onto the positioning steel wire rope (3) and moves along the length of the positioning steel wire rope (3). The hook lock (4) switches between hooking onto two adjacent positioning steel wire ropes (3). The hook lock (4) is connected to a safety rope (41) that is hooked to the worker. The walkway frame (1) is rotatably connected to the side of the derrick via a rotating shaft. The rotating shaft of the walkway frame (1) is parallel to the length direction of the derrick. The side of the walkway frame (1) away from the derrick is rotatably provided with a detachable support column (11) that is supported on the side of the derrick. The walkway frame (1) includes long rods (12) arranged at intervals along the length direction, reinforcing rods (13) that are spaced between two long rods (12), and support mesh plates (14) that are laid and fixed on the upper side of the reinforcing rods (13) and the long rods (12).

2. The high-altitude auxiliary walkway for derricks as described in claim 1, characterized in that: The cross-sections of the long rod (12) and the reinforcing rod (13) along their length direction are "L" shaped.

3. The high-altitude auxiliary walkway for derricks as described in claim 1, characterized in that: The upper end of the support mesh plate (14) is provided with multiple handrail columns (15) on the side away from the derrick by a torsion spring. The handrail column (15) is provided with a hand handle (16) at the end away from the support mesh plate (14). The rotation axis of the handrail column (15) and the hand handle (16) are parallel to the length direction of the derrick. The upper surface of the support mesh plate (14) is provided with a blocking block (17) on the side of the handrail column (15) away from the derrick. When the handrail column (15) rotates to be perpendicular to the upper surface of the support mesh plate (14), it abuts against the blocking block (17). The upper surface of the support mesh plate (14) is provided with a positioning component (18) on the side close to the derrick to position the hand handle (16) close to the upper surface of the support mesh plate (14).

4. The high-altitude auxiliary walkway for derricks as described in claim 3, characterized in that: A positioning ring (161) is provided on the side of the handrail (16) away from the handrail column (15). The axis of the positioning ring (161) is parallel to the axis of the handrail (16). The positioning assembly (18) includes a positioning tube (181) arranged parallel to the length direction of the derrick, a compression spring (182) coaxially fixed in the positioning tube (181), a positioning slide rod (183) with one end connected to the compression spring (182) and slidably disposed in the positioning tube (181), and a parallel The positioning insert (184) is provided on the positioning slide (183). The end of the positioning slide (183) away from the compression spring (182) passes through the end of the positioning tube (181). The positioning slide (183) is pushed to compress the compression spring (182). The side end of the positioning tube (181) is provided with a positioning groove (1811) for the positioning ring (161) to be inserted. The positioning insert (184) is reset and inserted into the positioning ring (161) along with the positioning slide (183).

5. The high-altitude auxiliary walkway for derricks as described in claim 1, characterized in that: Each worker is connected to two safety ropes (41) and carries two hooks (4). The two hooks (4) are hooked to the two adjacent positioning wire ropes (3) when the worker switches between them.

6. The high-altitude auxiliary walkway for derricks as described in claim 1, characterized in that: The fixed pile (2) includes a rotating pile (21) welded and fixed to the side end of the derrick and a vertical pile (22) rotatably connected to the rotating pile (21). The rotating pile (21) has two pin holes (211), and the line connecting the two pin holes (211) and the rotation axis of the vertical pile (22) is perpendicular to each other. The vertical pile (22) has a positioning hole (221) that aligns with the two pin holes (211) as it rotates. A positioning pin (23) inserted into the pin hole (211) is inserted into the positioning hole (221).

Images