Efficient folding type minor repair platform
The design of the guide beam and hydraulic cylinder system enables height adjustment and folding of the minor repair platform, solving the problems of flexibility and transportation costs, and improving operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ZHONGRUI WEIFEI MARINE EQUIPMENT CO LTD
- Filing Date
- 2025-05-10
- Publication Date
- 2026-07-10
AI Technical Summary
Existing minor repair platforms have poor flexibility, low operational efficiency, and high transportation costs.
A high-efficiency folding minor repair platform was designed, which adopts a guide rail beam and hydraulic cylinder system. The height of the working platform can be adjusted and folded by lifting hydraulic cylinder and tilting hydraulic cylinder, reducing the dependence on auxiliary equipment.
It improves the flexibility and efficiency of the operating platform, reduces transportation costs, and simplifies the movement and transportation of equipment.
Smart Images

Figure CN224478889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petroleum equipment technology, and in particular to a high-efficiency folding minor repair platform. Background Technology
[0002] Because of their small size and rapid movement, workover rigs are often used for workover operations or tubing installation. The workover platform is the working platform of the workover rig, and different working heights are often required depending on the operation.
[0003] Existing workover platforms have a series of mounting holes welded onto the derrick. When height adjustment is needed, the entire workover platform is manually lifted, and then pins are inserted and removed to connect different holes to complete the adjustment. This operation is cumbersome, inefficient, and requires auxiliary operations such as cranes, which is time-consuming and labor-intensive. Furthermore, when the workover rig is moved to a different work site, the entire workover platform needs to be disassembled and transported by additional vehicles, increasing transportation costs. The equipment has poor flexibility and low operational efficiency.
[0004] Therefore, it is necessary to propose a high-efficiency folding minor repair platform to improve the operational efficiency of the minor repair platform. Utility Model Content
[0005] The purpose of this invention is to solve the problems of poor flexibility and low work efficiency of existing minor repair platforms, and to provide a high-efficiency folding minor repair platform.
[0006] The technical solution of this utility model is:
[0007] A high-efficiency folding minor repair platform includes a working platform and a guide beam fixed on Y-shaped support legs. The guide beam is equipped with a lifting hydraulic cylinder, and a moving trolley is slidably connected to the guide beam. The lifting hydraulic cylinder drives the moving trolley to slide along the guide beam. The moving trolley is rotatably connected to the working platform. The moving trolley is equipped with a tilting hydraulic cylinder, which drives the working platform to tilt relative to the moving trolley. The side of the working platform away from the moving trolley is equipped with a height-adjustable platform support leg.
[0008] Furthermore, the guide beam includes two opposing vertical beams and a horizontal beam located between the two vertical beams. The horizontal beam is located at the bottom of the vertical beams and is perpendicular to the vertical beams. Both ends of the horizontal beam are fixedly connected to the two vertical beams respectively. A connecting beam is provided between the vertical beams and the Y-shaped support legs. Both ends of the connecting beam are fixedly connected to the vertical beams and the Y-shaped support legs respectively. The guide beam facilitates the movement of the trolley and can be fixed to the Y-shaped support legs, providing basic support for the trolley and the work platform.
[0009] Furthermore, the mobile trolley includes a trolley frame, three sets of front and rear guide wheel sets, and two sets of left and right guide wheel sets. The front and rear guide wheel sets and the left and right guide wheel sets are alternately arranged on both sides of the trolley frame. The front and rear guide wheel sets and the left and right guide wheel sets move along the guide rail grooves in the guide rail beam, so that the trolley can move smoothly.
[0010] Furthermore, at least one set of first connecting ear plates is provided on the side of the crossbeam opposite to the Y-shaped support leg, and at least one set of third connecting ear plates is provided on the side of the trolley frame opposite to the Y-shaped support leg. The first connecting ear plate is rotatably connected to one end of the lifting cylinder, and the third connecting ear plate is rotatably connected to the other end of the lifting cylinder. The first connecting ear plate and the second connecting ear plate realize the installation and fixation of the lifting cylinder, so that the lifting cylinder can drive the moving trolley to rise and fall when it extends and retracts.
[0011] Furthermore, the work platform includes a platform body and railings installed on the platform body. The railings are detachably connected to the platform body. When the work platform is in operation, the railings are fixed to the platform body to provide protection for the workers. When the work platform is in transport mode, the railings can be detached from the platform body to reduce the volume of the work platform, making it easy to fold and also reducing the volume after folding.
[0012] Furthermore, the trolley frame is provided with at least one set of second connecting ear plates on the side away from the Y-shaped support legs, and the bottom of the platform body is provided with at least one set of fourth connecting ear plates. The second connecting ear plates are rotatably connected to one end of the tilting cylinder, and the fourth connecting ear plates are rotatably connected to the other end of the tilting cylinder. The tilting cylinder is located at the bottom of the platform body and can drive the platform body to tilt 90 degrees relative to the moving trolley, so that the platform body and the moving trolley overlap or are perpendicular. When they overlap, it is in the transportation state, and when they are perpendicular, it is in the operation state.
[0013] Furthermore, the platform body is equipped with a support leg ear plate at the end away from the mobile trolley. The platform support leg and the support leg ear plate are fixed by a pin. The pin can be inserted and removed. When the pin is removed, the platform support leg and the support leg ear plate move relative to each other, which facilitates the mobile trolley to drive the work platform to rise and fall. After the height is adjusted, the pin is reinserted to fix the platform support leg and the support leg ear plate, so that the platform support leg provides support for the work platform. This provides mechanical fixation for the work platform after the tilting cylinder operation is completed, freeing up the tilting cylinder and improving its service life.
[0014] Furthermore, the vertical beam is provided with positioning pin holes, and the trolley frame is provided with pins. The trolley frame and the vertical beam are fixed by the pins and positioning pin holes. The pins and positioning pin holes can realize the mechanical fixation of the trolley frame and the vertical beam, thereby releasing the lifting cylinder after the lifting cylinder has finished its operation and improving the service life of the lifting cylinder.
[0015] Furthermore, at least one set of positioning pin seats is provided on both sides of the trolley frame. The positioning pin seats, front and rear guide wheel sets and left and right guide wheel sets are all set on the same side. The positioning pin seats are located at the bottom of the trolley frame and are located in the guide rail groove of the guide rail beam, thereby ensuring the stability of the moving trolley.
[0016] Furthermore, a first rotating ear plate is provided on one side of the trolley frame relative to the platform body, and a second rotating ear plate is provided on one side of the platform body relative to the trolley frame, with the first rotating ear plate and the second rotating ear plate being rotatably connected.
[0017] This utility model discloses a high-efficiency folding repair platform. When changing the working height, the lifting cylinder can drive the moving trolley to rise and fall vertically along the guide beam, thereby adjusting the height of the working platform. Then, the height of the platform outriggers can be adjusted according to the current height of the working platform to achieve support and fixation of the working platform. No additional auxiliary working equipment is required, making it highly efficient and quick. In addition, when changing the site of the workover rig, there is no need to disassemble the repair platform as a whole. The flipping cylinder can flip the working platform relative to the moving trolley, so that the working platform and the moving trolley can be folded together, and both the working platform and the moving trolley are close to the guide beam, reducing the overall volume of the repair platform, facilitating movement and transportation, and effectively reducing additional transportation costs. Compared with traditional technology, this technical solution facilitates the adjustment of the working platform height and can fold the working platform and the moving trolley together during transportation, saving floor space and transportation costs, and improving equipment flexibility and operating efficiency. Attached Figure Description
[0018] Figure 1 This utility model provides a three-dimensional view of the working state. Figure 1 ;
[0019] Figure 2 This utility model provides a three-dimensional view of the working state. Figure 2 ;
[0020] Figure 3 This is a perspective view of the guide rail beam of this utility model;
[0021] Figure 4 This utility model provides a three-dimensional mobile trolley. Figure 1 ;
[0022] Figure 5 This utility model provides a three-dimensional mobile trolley. Figure 2 ;
[0023] Figure 6 This is a perspective view of the working platform of this utility model;
[0024] Figure 7 This is a low-level view of the operating platform of this utility model;
[0025] Figure 8This is a high-level view of the working platform of this utility model;
[0026] Figure 9 This is a low-position view of the mobile trolley of this utility model;
[0027] Figure 10 This is a high-level view of the mobile trolley of this utility model;
[0028] Figure 11 This is a transportation status diagram of this utility model.
[0029] Reference numerals: 1. Guide rail beam; 2. Moving trolley; 3. Lifting cylinder; 4. Tilting cylinder; 5. Working platform; 6. Platform support leg; 7. Vertical beam; 8. Connecting beam; 9. Horizontal beam; 10. First connecting lug; 11. Positioning pin hole; 12. Trolley frame; 13. Front and rear guide wheel sets; 14. Left and right guide wheel sets; 15. Positioning pin seat; 16. Second connecting lug; 17. First rotating lug; 18. Third connecting lug; 19. Second rotating lug; 20. Platform body; 21. Fourth connecting lug; 22. Railing; 23. Support leg lug; 24. Y-shaped support leg. Detailed Implementation
[0030] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.
[0031] Example 1:
[0032] like Figure 1 and Figure 2 As shown, this embodiment provides a high-efficiency folding minor repair platform, including a working platform 5 and a guide beam 1 fixed on a Y-shaped support leg 24. The guide beam 1 is equipped with a lifting cylinder 3, and a moving trolley 2 is slidably connected to the guide beam 1. The lifting cylinder 3 drives the moving trolley 2 to slide along the guide beam 1. The moving trolley 2 is rotatably connected to the working platform 5. The moving trolley 2 is equipped with a tilting cylinder 4, which drives the working platform 5 to tilt relative to the moving trolley 2. The working platform 5 is provided with a height-adjustable platform support leg 6 on the side away from the moving trolley 2.
[0033] Preferred, such as Figure 3 The guide beam 1 includes two opposing vertical beams 7 and a horizontal beam 9 located between the two vertical beams 7. The horizontal beam 9 is located at the bottom of the vertical beams 7 and is perpendicular to the vertical beams 7. The two ends of the horizontal beam 9 are fixedly connected to the two vertical beams 7 with screws. A connecting beam 8 is provided between the vertical beams 7 and the Y-shaped support leg 24. The two ends of the connecting beam 8 are fixedly connected to the vertical beams 7 and the Y-shaped support leg 24 with screws. The guide beam 1 can facilitate the movement of the trolley 2 and can be fixed to the Y-shaped support leg 24, providing basic support for the trolley 2 and the working platform 5.
[0034] Preferred, such as Figure 4 and Figure 5 The mobile trolley 2 includes a trolley frame 12, three sets of front and rear guide wheel sets 13, and two sets of left and right guide wheel sets 14. The front and rear guide wheel sets 13 and the left and right guide wheel sets 14 are alternately arranged on both sides of the trolley frame 12. The front and rear guide wheel sets 13 and the left and right guide wheel sets 14 are fixedly connected to the trolley frame 12 with screws. The front and rear guide wheel sets 13 and the left and right guide wheel sets 14 move along the guide rail groove in the guide rail beam 1, so that the trolley can move smoothly. The trolley frame 12 is not limited to being spliced from square tubes, I-beams, or other profiles. Preferably, the front and rear guide wheel sets 13 and the left and right guide wheel sets 14 are roller structures, which can reduce friction with the guide rail. The front, rear, left, and right wheels work together to restrict the trolley to move only up and down within the track.
[0035] Preferred, such as Figure 4 and Figure 5 At least one set of first connecting ear plates 10 is provided on the side of the crossbeam 9 opposite to the Y-shaped support leg 24, preferably one set of first connecting ear plates 10. At least one set of third connecting ear plates 18 is provided on the side of the trolley frame 12 opposite to the Y-shaped support leg 24, preferably one set of third connecting ear plates 18. The first connecting ear plate 10 is rotatably connected to one end of the lifting cylinder 3 by a connecting pin, and the third connecting ear plate 18 is rotatably connected to the other end of the lifting cylinder 3 by a connecting pin. The first connecting ear plate 10 and the second connecting ear plate 16 realize the installation and fixation of the lifting cylinder 3, so that the lifting cylinder 3 can drive the moving trolley 2 to rise and fall when it extends and retracts. The first connecting ear plate 10 is welded to the crossbeam 9, and the third connecting ear plate 18 is welded to the trolley frame 12.
[0036] Preferred, such as Figure 6 The work platform 5 includes a platform body 20 and a railing 22 installed on the platform body 20. The railing 22 is detachably connected to the platform body 20. When the work platform 5 is in working condition, the railing 22 is fixed to the platform body 20, thereby providing protection for the workers. When the work platform 5 is in transport condition, the railing 22 can be removed from the platform body 20, thereby reducing the volume of the work platform 5, making it easy to fold, and also reducing the volume after folding. The railing 22 is fixed to the platform body 20 by a pin or screw.
[0037] Preferred, such as Figure 4 and Figure 5At least one set of second connecting ear plates 16, preferably one set of second connecting ear plates 16, is welded to the side of the trolley frame 12 away from the Y-shaped support leg 24. At least one set of fourth connecting ear plates 21, preferably one set of fourth connecting ear plates 21, is welded to the bottom of the platform body 20. The second connecting ear plates 16 are rotatably connected to one end of the tilting cylinder 4 by connecting pins, and the fourth connecting ear plates 21 are rotatably connected to the other end of the tilting cylinder 4 by connecting pins. The tilting cylinder 4 is located at the bottom of the platform body 20 and can drive the platform body 20 to tilt 90 degrees relative to the moving trolley 2, so that the platform body 20 and the moving trolley 2 overlap or are perpendicular. When they overlap, it is in the transportation state, and when they are perpendicular, it is in the operation state.
[0038] Preferred, such as Figure 6 The platform body 20 has a support leg ear plate 23 welded to one end away from the mobile trolley 2. The platform support leg 6 is fixed to the support leg ear plate 23 by a pin. The pin can be inserted and removed. When the pin is removed, the platform support leg 6 and the support leg ear plate 23 move relative to each other, so that the mobile trolley 2 can drive the working platform 5 to rise and fall. After the height is adjusted, the pin is reinserted to fix the platform support leg 6 and the support leg ear plate 23, so that the platform support leg 6 provides support for the working platform 5. This provides mechanical fixation for the working platform 5 after the tilting cylinder 4 has finished working, freeing the tilting cylinder 4 and improving the service life of the tilting cylinder 4.
[0039] Preferably, the vertical beam 7 is provided with a positioning pin hole 11, and the trolley frame 12 is provided with a pin. The trolley frame 12 and the vertical beam 7 are fixed by the pin and the positioning pin hole 11. The pin and the positioning pin hole 11 can realize the mechanical fixation of the trolley frame 12 and the vertical beam 7, so that the lifting cylinder is released after the lifting cylinder 3 has finished working, thereby improving the service life of the lifting cylinder.
[0040] Preferred, such as Figure 3 The trolley frame 12 is provided with at least one set of positioning pin seats 15 on both sides, preferably one set of positioning pin seats 15. The positioning pin seats 15, the front and rear guide wheel sets 13 and the left and right guide wheel sets 14 are all provided on the same side. The positioning pin seats 15 are located at the bottom of the trolley frame 12 and are located in the guide rail groove of the guide rail beam 1, thereby ensuring the stability of the moving trolley 2.
[0041] Preferred, such as Figure 1 and Figure 2 As shown, a first rotating ear plate 17 is welded to one side of the trolley frame 12 relative to the platform body 20, and a second rotating ear plate 19 is welded to one side of the platform body 20 relative to the trolley frame 12. The first rotating ear plate 17 and the second rotating ear plate 19 are rotatably connected by a pin and cooperate with the tilting cylinder 4 to achieve the tilting of the platform body 20.
[0042] like Figure 8 and Figure 10 As shown, the height adjustment process for this equipment is as follows:
[0043] 1. Pressurize the tilting cylinder 4 to bear the overall weight of the work platform 5; 2. Disconnect the connecting pin between the outrigger ear plate 23 and the platform outrigger 6, detaching it from the platform outrigger 6; 3. Pressurize the lifting cylinder 3 to bear the overall weight of the mobile trolley 2, including the weight of the work platform 5 and the tilting cylinder 4; 4. Disconnect the connecting pin between the positioning pin hole 11 and the positioning pin seat 15; 5. Extend (retract) the lifting cylinder 3, driving the mobile trolley 2 to move upward (downward) until the predetermined height is reached and oil supply stops; 6. Insert the pin through the connecting pin between the positioning pin hole 11 and the positioning pin seat 15 for mechanical locking; 7. Depressurize the lifting cylinder 3; 8. Insert the pin through the connecting pin between the outrigger ear plate 23 and the platform outrigger 6 for mechanical locking; 9. Depressurize the tilting cylinder 4, completing the high-level adjustment.
[0044] like Figure 7 , Figure 9 and Figure 10 As shown, the transportation and folding process for this equipment is as follows:
[0045] 1. Remove the railings 22 and other accessories on the platform 5; 2. Pressurize the tilting cylinder 4 to bear the overall weight of the platform 5; 3. Disconnect the connecting pin between the outrigger ear plate 23 and the platform outrigger 6, detaching it from the platform outrigger 6; 4. Pressurize the lifting cylinder 3 to bear the overall weight of the moving trolley 2, including the weight of the platform 5 and the tilting cylinder 4; 5. Disconnect the connecting pin between the positioning pin hole 11 and the positioning pin seat 15; 6. Retract the lifting cylinder 3, causing the moving trolley 2 to move downwards to its lowest position; 7. Insert the pin, inserting the connecting pin between the positioning pin hole 11 and the positioning pin seat 15, mechanically locking it; 8. Depressurize the lifting cylinder 3; 9. Extend the tilting cylinder 4, causing the platform 5 to rotate 90 degrees around the continuous rotation axis of the first rotating ear plate 17 and the second rotating ear plate 19, changing from the working state to the transport state; 10. Lock it, using the outrigger ear plate 23 to mechanically lock the entire platform 5 onto the guide beam 1; 11. Depressurize the tilting cylinder 4, adjustment complete.
[0046] In use, when changing the working height, the lifting cylinder 3 can drive the mobile trolley 2 to rise and fall vertically along the guide beam 1, thereby adjusting the height of the working platform 5. Then, the height of the platform support legs 6 is adjusted according to the current height of the working platform 5, thereby supporting and fixing the working platform 5. No additional auxiliary equipment is required, making it highly efficient and quick. In addition, when changing the site of the workover rig, there is no need to disassemble the entire workover platform. The working platform 5 can be flipped relative to the mobile trolley 2 by the flipping cylinder 4, so that the working platform 5 and the mobile trolley 2 can be folded together, so that the working platform 5 and the mobile trolley 2 are close to the guide beam 1, reducing the overall volume of the workover platform, facilitating movement and transportation, and effectively reducing additional transportation costs. Compared with traditional technology, this technical solution facilitates the adjustment of the height of the working platform 5 and can fold the working platform 5 and the mobile trolley 2 together during transportation, saving floor space and transportation costs, and improving equipment flexibility and operating efficiency.
[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.
Claims
1. A high-efficiency folding minor repair platform, comprising a working platform (5) and a guide beam (1) fixed on a Y-shaped support leg (24), characterized in that: The guide beam (1) is equipped with a lifting cylinder (3), and the guide beam (1) is slidably connected to a moving trolley (2). The lifting cylinder (3) drives the moving trolley (2) to slide along the guide beam (1). The moving trolley (2) is rotatably connected to the working platform (5). The moving trolley (2) is equipped with a tilting cylinder (4). The tilting cylinder (4) drives the working platform (5) to tilt relative to the moving trolley (2). The working platform (5) is equipped with a height-adjustable platform support leg (6) on the side away from the moving trolley (2).
2. The high-efficiency folding minor repair platform according to claim 1, characterized in that: The guide beam (1) includes two opposing vertical beams (7) and a horizontal beam (9) located between the two vertical beams (7). The horizontal beam (9) is located at the bottom of the vertical beams (7) and is perpendicular to the vertical beams (7). The two ends of the horizontal beam (9) are fixedly connected to the two vertical beams (7) respectively. A connecting beam (8) is provided between the vertical beams (7) and the Y-shaped support leg (24). The two ends of the connecting beam (8) are fixedly connected to the vertical beams (7) and the Y-shaped support leg (24) respectively.
3. The high-efficiency folding minor repair platform according to claim 2, characterized in that: The mobile trolley (2) includes a trolley frame (12), three sets of front and rear guide wheel sets (13) and two sets of left and right guide wheel sets (14). The front and rear guide wheel sets (13) and the left and right guide wheel sets (14) are alternately arranged on both sides of the trolley frame (12).
4. The high-efficiency folding minor repair platform according to claim 3, characterized in that: The crossbeam (9) is provided with at least one set of first connecting ear plates (10) on the side opposite to the Y-shaped support leg (24), and the trolley frame (12) is provided with at least one set of third connecting ear plates (18) on the side opposite to the Y-shaped support leg (24). The first connecting ear plate (10) is rotatably connected to one end of the lifting cylinder (3), and the third connecting ear plate (18) is rotatably connected to the other end of the lifting cylinder (3).
5. The high-efficiency folding minor repair platform according to claim 3, characterized in that: The work platform (5) includes a platform body (20) and a railing (22) installed on the platform body (20). The railing (22) is detachably connected to the platform body (20).
6. The high-efficiency folding minor repair platform according to claim 5, characterized in that: The trolley frame (12) is provided with at least one set of second connecting ear plates (16) on the side away from the Y-shaped support leg (24), and the bottom of the platform body (20) is provided with at least one set of fourth connecting ear plates (21). The second connecting ear plate (16) is rotatably connected to one end of the tilting liquid cylinder (4), and the fourth connecting ear plate (21) is rotatably connected to the other end of the tilting liquid cylinder (4).
7. The high-efficiency folding minor repair platform according to claim 5, characterized in that: The platform body (20) is provided with a support leg ear plate (23) at one end away from the mobile trolley (2), and the platform support leg (6) and the support leg ear plate (23) are fixed by a pin.
8. The high-efficiency folding minor repair platform according to claim 3, characterized in that: The vertical beam (7) has a positioning pin hole (11), and the trolley frame (12) has a pin. The trolley frame (12) and the vertical beam (7) are connected and fixed by the pin and the positioning pin hole (11).
9. The high-efficiency folding minor repair platform according to claim 3, characterized in that: At least one set of positioning pin seats (15) are provided on both sides of the trolley frame (12). The positioning pin seats (15), the front and rear guide wheel sets (13) and the left and right guide wheel sets (14) are all provided on the same side. The positioning pin seats (15) are located at the bottom of the trolley frame (12).
10. The high-efficiency folding minor repair platform according to claim 5, characterized in that: The trolley frame (12) is provided with a first rotating ear plate (17) on one side of the platform body (20) and a second rotating ear plate (19) on one side of the platform body (20) relative to the trolley frame (12). The first rotating ear plate (17) and the second rotating ear plate (19) are rotatably connected.