A super-large storage tank maintenance device

Abstract

This utility model relates to an overhaul device for ultra-large storage tanks, belonging to the field of storage tank overhaul technology. It includes a hydraulic lifting overhaul column, an overhaul frame fixedly mounted on the upper end of the column, an overhaul platform slidably mounted on the upper end of the frame, a guardrail at the outer edge of the overhaul platform, a tool table on one side of the overhaul platform, and a liftable seat on the other side. A seat groove is located in the center of the upper surface of the seat, and a liftable connecting block is located on each side of the groove. A clamping plate is slidably mounted on the side end of each connecting block that is close to each other. A first safety belt and a second safety belt are respectively mounted on the front end of the seat. This invention solves the current problems of insufficient protection for maintenance personnel and the easy fall of tools during the overhaul of ultra-large storage tanks.

Description

Technical Field

[0001] This utility model belongs to the field of storage tank maintenance technology, specifically relating to a maintenance device for ultra-large storage tanks. Background Technology

[0002] Large-scale storage tanks are widely used in the petroleum, chemical, and energy industries. Their large volume and height make maintenance operations challenging. Existing maintenance devices for large-scale storage tanks mostly rely on fixed maintenance platforms or simple lifting equipment, which have several shortcomings: First, the maintenance platforms lack mobility and are difficult to quickly adjust to the tank's position, resulting in low maintenance efficiency. Second, they lack multi-layered safety protection structures for maintenance personnel; simple guardrails are insufficient to meet the protection needs of maintenance personnel of different heights, and there is a risk of personnel tipping over during platform movement. Third, tools lack dedicated protective structures, making them prone to falling during maintenance, causing damage and potentially posing safety hazards to personnel or equipment below. Therefore, there is an urgent need for a maintenance device for large-scale storage tanks that combines flexibility, safety, and practicality to solve these problems. Utility Model Content

[0003] This utility model overcomes the shortcomings of the prior art and proposes a maintenance device for ultra-large storage tanks; it solves the problems of lack of protection for maintenance personnel and easy tool drop during the maintenance of ultra-large storage tanks.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0005] A maintenance device for an ultra-large storage tank includes a hydraulic lifting maintenance column, a maintenance frame fixedly installed at the upper end of the hydraulic lifting maintenance column, a maintenance platform slidably installed at the upper end of the maintenance frame, a guardrail installed at the outer edge of the upper end of the maintenance platform, a tool table installed on one side of the upper end of the maintenance platform, a liftable seat installed on the other side of the upper end of the maintenance platform, a seat groove installed in the middle of the upper end surface of the seat, a liftable connecting block installed on each side of the seat groove, a clamp plate slidably installed on the end face of the two connecting blocks that are close to each other, and a first safety belt and a second safety belt installed on the front end face of the seat.

[0006] Furthermore, a fixed base is fixedly installed at the lower end of the hydraulic lifting maintenance column; one end of the maintenance frame is fixedly connected to the upper end of the hydraulic lifting maintenance column; a counterweight frame is fixedly installed on the side of the upper end of the hydraulic lifting maintenance column away from the maintenance frame, and a counterweight block is fixedly installed at the end of the counterweight frame away from the hydraulic lifting maintenance column.

[0007] Furthermore, a connecting seat is fixedly installed at each end of the upper surface of the maintenance frame. A first motor is fixedly installed on the connecting seat near the hydraulic lifting maintenance column, and a first reel is fixedly installed on the output shaft of the first motor. A second motor is fixedly installed on the connecting seat away from the hydraulic lifting maintenance column, and a second reel is fixedly installed on the output shaft of the second motor. A first chain is wound around the first reel, and the end of the first chain away from the first reel is fixedly connected to the side of the maintenance platform near the hydraulic lifting maintenance column. A second chain is wound around the second reel, and the end of the second chain away from the second reel is fixedly connected to the side of the maintenance platform away from the hydraulic lifting maintenance column.

[0008] Furthermore, the tool table is a cylindrical structure with an open top, and a liftable cover plate is provided at the upper opening of the tool table; multiple compartments for placing tools are provided inside the tool table; a first electric telescopic rod is fixedly installed on the inner bottom surface of the tool table, and the telescopic end of the first electric telescopic rod is vertically upward and fixedly connected to the cover plate.

[0009] Furthermore, the guardrail includes a first mechanical telescopic rod, a first connecting rod, a second connecting rod, an upper stop, and a lower stop; a first mechanical telescopic rod is fixedly installed at each end of the outer edge of the upper end of the inspection platform, the telescopic end of the first mechanical telescopic rod is vertically upward and a vertical first connecting rod is fixedly installed thereon; a horizontal upper stop is fixedly installed between the upper ends of the two first connecting rods; a lower stop is installed below the upper stop, and a row of vertical second connecting rods is fixedly installed between the upper stop and the lower stop.

[0010] Furthermore, a second groove is provided on the upper surface of the base, and a second electric telescopic rod is fixedly installed inside the second groove. The telescopic end of the second electric telescopic rod is vertically upward and fixedly connected to the lower surface of the base.

[0011] Furthermore, two vertical connecting columns are fixedly installed on the upper surface of the base, with the two connecting columns located on both sides of the base groove; a connecting plate is fixedly installed at the lower end of the side end face of the two connecting columns that are close to each other, and a second mechanical telescopic rod is fixedly installed at the upper end of the two connecting plates, with the telescopic ends of the two second mechanical telescopic rods pointing vertically upward and fixedly connected to the lower end face of the two connecting blocks respectively.

[0012] Furthermore, a third electric telescopic rod is fixedly installed on the end face of the two connecting blocks that are close to each other, and the telescopic ends of the two third electric telescopic rods face each other; a clamping plate is fixedly installed on the telescopic ends of the two third electric telescopic rods respectively.

[0013] Furthermore, one end of the first safety belt and one end of the second safety belt are fixedly connected to the two sides of the front end face of the seat, respectively. The other end of the first safety belt is fixedly provided with a locking block, and the other end of the second safety belt is provided with a locking groove. The locking block and the locking groove are detachably connected.

[0014] The beneficial effects of this utility model compared to the prior art are as follows: This utility model provides a maintenance device for ultra-large storage tanks. A first chain and a second chain are respectively installed on the first and second reels. Activating the first and second motors allows the maintenance platform to be moved on the maintenance frame, facilitating maintenance personnel's work on ultra-large storage tanks. First mechanical telescopic rods installed on both sides of the upper edge of the maintenance platform allow for adjustment of the overall height of the guardrail, increasing the safety of the maintenance platform and making it easier for maintenance personnel of different heights to use. A first electric telescopic rod is fixedly installed on the bottom surface inside the tool table, controlling the raising and lowering of the cover plate to close or open the upper opening of the tool table, thus properly storing tools and preventing them from falling and causing unnecessary danger. Two second mechanical telescopic rods adjust the height of the two connecting blocks, and two third electric telescopic rods control the two clamping plates to move closer or further apart. A soft pad is installed on the side of the two clamping plates that are close together, allowing maintenance personnel of different heights to be supported around the waist, preventing falls during platform movement. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural diagram of the maintenance platform; Figure 3 This is a schematic diagram showing the connection between the guardrail and the maintenance platform; Among them, 1 is a hydraulic lifting maintenance column, 2 is a fixed seat, 3 is a maintenance frame, 4 is a second reel, 5 is a first reel, 6 is a maintenance platform, 7 is a first motor, 8 is a second motor, 9 is a first mechanical telescopic rod, 10 is a lower stop bar, 11 is a first connecting rod, 12 is an upper stop bar, 13 is a second connecting rod, 14 is a tool table, 15 is a first electric telescopic rod, 16 is a cover plate, 17 is a seat groove, 18 is a second electric telescopic rod, 19 is a seat platform, 20 is a connecting column, 21 is a connecting block, 22 is a second mechanical telescopic rod, 23 is a connecting plate, 24 is a third electric telescopic rod, 25 is a clamping plate, 26 is a first safety belt, and 27 is a second safety belt. Detailed Implementation

[0016] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0017] like Figure 1 As shown in Figure 3, this utility model provides a maintenance device for an ultra-large storage tank, including a hydraulic lifting maintenance column 1, a maintenance frame 3 fixedly installed at the upper end of the hydraulic lifting maintenance column 1, a maintenance platform 6 slidably installed at the upper end of the maintenance frame 3, a guardrail installed at the outer edge of the upper end of the maintenance platform 6, a tool table 14 installed on one side of the upper end of the maintenance platform 6, and a liftable seat 19 installed on the other side of the upper end of the maintenance platform 6. A seat groove 17 is provided in the middle of the upper end face of the seat 19, and a liftable connecting block 21 is provided on each side of the seat groove 17. A clamping plate 25 is slidably installed on the side end face of the two connecting blocks 21 that are close to each other. A first safety belt 26 and a second safety belt 27 are respectively installed on the front end face of the seat 19.

[0018] The hydraulic lifting maintenance column 1 remains vertical, and a fixed base 2 is fixedly installed at the lower end of the hydraulic lifting maintenance column 1. The maintenance frame 3 remains horizontal, and one end of the maintenance frame 3 is fixedly connected to the upper end of the hydraulic lifting maintenance column 1. A horizontal counterweight frame is fixedly installed on the side of the upper end of the hydraulic lifting maintenance column 1 away from the maintenance frame 3. The extension direction of the counterweight frame coincides with the extension direction of the maintenance frame 3. One end of the counterweight frame is fixedly connected to the upper end of the hydraulic lifting maintenance column 1, and a counterweight block is fixedly installed at the end of the counterweight frame away from the hydraulic lifting maintenance column 1.

[0019] A connecting seat is fixedly installed at each end of the upper surface of the maintenance frame 3, and a first groove is provided in the middle of the upper surface of each connecting seat. A first reel 5 is rotatably mounted inside the first groove of the connecting seat near the hydraulic lifting maintenance column 1 via a first rotating shaft, and the first rotating shaft is fixedly connected to the first reel 5. A first motor 7 is fixedly mounted on the outer surface of the connecting seat near the hydraulic lifting maintenance column 1, and the output shaft of the first motor 7 is fixedly connected to the end of the first rotating shaft. A second reel 4 is rotatably mounted inside the first groove of the connecting seat away from the hydraulic lifting maintenance column 1 via a second rotating shaft, and the second rotating shaft is fixedly connected to the second reel 4. A second motor 8 is fixedly mounted on the outer surface of the connecting seat away from the hydraulic lifting maintenance column 1, and the output shaft of the second motor 8 is fixedly connected to the end of the second rotating shaft. A first chain is wound around the first reel 5, one end of which is fixedly wound around the first reel 5, and the other end of which is fixedly connected to the side of the maintenance platform 6 near the hydraulic lifting maintenance column 1. A second chain is wound around the second reel 4. One end of the second chain is fixedly wound around the second reel 4, and the other end of the second chain is fixedly connected to the side of the maintenance platform 6 away from the hydraulic lifting maintenance column 1.

[0020] When it is necessary to control the maintenance platform 6 to move away from the hydraulic lifting maintenance column 1, the first motor 7 and the second motor 8 are controlled to rotate clockwise, which drives the first reel 5 and the second reel 4 to rotate clockwise. The first chain on the first reel 5 is released, and the second chain on the second reel 4 is wound up. Under the pulling force of the second chain, the maintenance platform 6 begins to move away from the hydraulic lifting maintenance column 1, while the first chain remains taut.

[0021] When it is necessary to control the maintenance platform 6 to move towards the side closer to the hydraulic lifting maintenance column 1, the first motor 7 and the second motor 8 are controlled to rotate counterclockwise, which drives the first reel 5 and the second reel 4 to rotate counterclockwise. The first chain on the first reel 5 begins to be wound up, and the second chain on the second reel 4 begins to be released. Under the pulling force of the first chain, the maintenance platform 6 begins to move towards the side closer to the hydraulic lifting maintenance column 1, while the second chain remains taut at all times.

[0022] The tool table 14 is a cylindrical structure with an open top, and a liftable cover plate 16 is provided at the top opening of the tool table 14. Multiple compartments for placing tools are provided inside the tool table 14, allowing for categorized placement of tools. A first electric telescopic rod 15 is fixedly installed on the bottom surface of the tool table 14, with its telescopic end pointing vertically upwards and fixedly connected to the cover plate 16. The cover plate 16 is a horizontally arranged circular plate structure. When the first electric telescopic rod 15 is in the retracted state, the cover plate 16 engages with the top opening of the tool table 14, closing the top opening; when the first electric telescopic rod 15 is in the extended state, the cover plate 16 disengages from the top opening of the tool table 14, opening the top opening.

[0023] The guardrail includes a first mechanical telescopic rod 9, a first connecting rod 11, a second connecting rod 13, an upper stop bar 12, and a lower stop bar 10. A first mechanical telescopic rod 9 is fixedly installed at each end of the outer edge of the upper part of the inspection platform 6. The telescopic end of the first mechanical telescopic rod 9 points vertically upward and is fixedly connected to a vertical first connecting rod 11. A horizontal upper stop bar 12 is fixedly installed between the upper ends of the two first connecting rods 11. A horizontal lower stop bar 10 is installed below the upper stop bar 12, and a row of vertical second connecting rods 13 is fixedly installed between the upper stop bar 12 and the lower stop bar 10. The overall raising and lowering of the guardrail is controlled by synchronously extending and retracting the first mechanical telescopic rods 9 at both ends.

[0024] A recessed second groove is provided on the upper surface of the base 19. Two symmetrical second electric telescopic rods 18 are fixedly installed inside the second groove, with their telescopic ends pointing vertically upwards. The telescopic ends of the two second electric telescopic rods 18 are fixedly connected to the two sides of the lower surface of the base 19, respectively. The synchronous extension and retraction of the two second electric telescopic rods 18 controls the raising and lowering of the base 19. Two vertical connecting columns 20 are fixedly installed on the upper surface of the base 19, located on both sides of the seat groove 17. A connecting plate 23 is fixedly installed at the lower end of the side end face of the two connecting columns 20 that are close to each other. A second mechanical telescopic rod 22 is fixedly installed at the upper end of the two connecting plates 23, with its telescopic ends pointing vertically upwards and fixedly connected to the lower end face of the two connecting blocks 21, respectively. The extension and retraction of the two second mechanical telescopic rods 22 drives the two connecting blocks 21 to rise and fall. The side end face of the two connecting blocks 21 that is far from each other maintains sliding contact with the side end face of the two connecting columns 20 that are close to each other. A third electric telescopic rod 24 is fixedly installed on each of the two connecting blocks 21 on one side of their respective ends, with the telescopic ends of the two third electric telescopic rods 24 facing each other. A clamping plate 25 is fixedly installed on each of the telescopic ends of the two third electric telescopic rods 24. The clamping plate 25 is a semi-circular annular plate structure, with the semi-circular openings of the two clamping plates 25 facing each other.

[0025] One end of the first safety belt 26 and one end of the second safety belt 27 are fixedly connected to the two sides of the front face of the seat 19, respectively. The other end of the first safety belt 26 is fixedly provided with a locking block, and the other end of the second safety belt 27 is provided with a locking groove. The locking block and the locking groove are detachably connected.

[0026] A control panel is fixedly installed in the middle of one side of the base 19. The control panel is equipped with a first motor switch, a second motor switch, a first electric telescopic rod switch, a second electric telescopic rod switch, and a third electric telescopic rod switch. The first motor 7, the second motor 8, the first electric telescopic rod 15, the second electric telescopic rod 18, and the third electric telescopic rod 24 are electrically connected to an external power supply through the first motor switch, the second motor switch, the first electric telescopic rod switch, the second electric telescopic rod switch, and the third electric telescopic rod switch, respectively.

[0027] The upper surface of the inspection platform 6 is covered with an anti-slip mat to prevent maintenance personnel from slipping on the inspection platform 6.

[0028] A soft pad is fixedly installed on the side end face of the two clamping plates 25 that are close to each other to increase the comfort of maintenance personnel.

[0029] The working principle of this utility model is as follows: In practical use, the device is moved to the location of the ultra-large storage tank to be inspected, and the fixed base 2 is stably connected to the ground to ensure the stability of the device; the height of the inspection frame 3 is adjusted by extending the hydraulic lifting inspection column 1 so that the inspection platform 6 is initially within the inspection height range; the first electric telescopic rod 15 is controlled to extend, thereby opening the cover plate 16 of the tool table 14, and the required inspection tools are classified and placed into the compartment of the tool table 14. Then, the first electric telescopic rod 15 is controlled to retract, closing the cover plate 16.

[0030] Maintenance personnel enter the inspection platform 6 and adjust the length of the first mechanical telescopic rod 9 according to their own height, so that the upper stop 12 is at a suitable height, forming a reliable guardrail. If long-term operation is required, control the extension of the second electric telescopic rod 18 to raise the seat 19 to a suitable height. The personnel sit in the seat groove 17 and engage the buckle of the first safety belt 26 with the buckle of the second safety belt 27 to secure their legs. Adjust the length of the second mechanical telescopic rod 22 so that the clamp 25 is aligned with the waist position. Control the extension of the third electric telescopic rod 24 to push the clamps 25 on both sides to clamp the waist of the maintenance personnel, thus completing the maintenance personnel's fixation.

[0031] The first motor 7 and the second motor 8 are started by controlling the control panel, which drives the first reel 5 and the second reel 4 to rotate, and pulls the maintenance platform 6 to the maintenance position of the storage tank. If the height needs to be adjusted, the height of the maintenance platform 6 can be further fine-tuned by using the hydraulic lifting maintenance column 1. When tools need to be retrieved during the operation, the first electric telescopic rod 15 is controlled to extend to open the cover plate 16. After the tools are retrieved, the cover plate 16 is closed in time.

[0032] After maintenance is completed, control the third electric telescopic rod 24 to retract, so that the clamps 25 on both sides loosen the waist of the maintenance personnel, and then the locking block disengages from the locking slot. The first safety belt 26 and the second safety belt 27 release the personnel, at which point the personnel can leave the platform 19; control the second electric telescopic rod 18 to retract, so that the platform 19 is lowered into the second groove; control the first motor 7 and the second motor 8 to rotate, so that the maintenance platform 6 moves to the initial position; control the hydraulic lifting maintenance column 1 to retract, so that the maintenance platform 6 is lowered to the lowest height; take out the tools from the tool table 14, turn off all electrical component switches, and the operation is completed.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An apparatus for inspecting and repairing an ultra-large storage tank, characterized by: The system includes a hydraulic lifting maintenance column (1), a maintenance frame (3) fixedly installed at the upper end of the hydraulic lifting maintenance column (1), a maintenance platform (6) slidably installed at the upper end of the maintenance frame (3), a guardrail installed at the outer edge of the upper end of the maintenance platform (6), a tool table (14) installed on one side of the upper end of the maintenance platform (6), a liftable seat (19) installed on the other side of the upper end of the maintenance platform (6), a seat groove (17) installed in the middle of the upper end face of the seat (19), a liftable connecting block (21) installed on each side of the seat groove (17), a clamp (25) slidably installed on the side end face of the two connecting blocks (21) that are close to each other, and a first safety belt (26) and a second safety belt (27) installed on the front end face of the seat (19).

2. The maintenance device for ultra-large storage tanks according to claim 1, characterized in that: A fixed seat (2) is fixedly installed at the lower end of the hydraulic lifting maintenance column (1); one end of the maintenance frame (3) is fixedly connected to the upper end of the hydraulic lifting maintenance column (1); a counterweight frame is fixedly installed on the side of the upper end of the hydraulic lifting maintenance column (1) away from the maintenance frame (3), and a counterweight block is fixedly installed at the end of the counterweight frame away from the hydraulic lifting maintenance column (1).

3. The apparatus for inspecting and repairing a very large storage tank according to claim 1, wherein: A connecting seat is fixedly installed at both ends of the upper end face of the maintenance frame (3). A first motor (7) is fixedly installed on the connecting seat near the hydraulic lifting maintenance column (1), and a first reel (5) is fixedly installed on the output shaft of the first motor (7). A second motor (8) is fixedly installed on the connecting seat away from the hydraulic lifting maintenance column (1), and a second reel (4) is fixedly installed on the output shaft of the second motor (8). A first chain is wound on the first reel (5), and the end of the first chain away from the first reel (5) is fixedly connected to the side of the maintenance platform (6) near the hydraulic lifting maintenance column (1). A second chain is wound on the second reel (4), and the end of the second chain away from the second reel (4) is fixedly connected to the side of the maintenance platform (6) away from the hydraulic lifting maintenance column (1).

4. The apparatus of claim 1, wherein: The tool table (14) is a cylindrical structure with an open top. A liftable cover plate (16) is provided at the upper opening of the tool table (14). Multiple compartments for placing tools are provided inside the tool table (14). A first electric telescopic rod (15) is fixedly installed on the bottom surface inside the tool table (14). The telescopic end of the first electric telescopic rod (15) is vertically upward and fixedly connected to the cover plate (16).

5. The apparatus of claim 1, wherein: The guardrail includes a first mechanical telescopic rod (9), a first connecting rod (11), a second connecting rod (13), an upper stop (12), and a lower stop (10). A first mechanical telescopic rod (9) is fixedly installed at both ends of the outer edge of the upper end of the inspection platform (6). The telescopic end of the first mechanical telescopic rod (9) is vertically upward and a vertical first connecting rod (11) is fixedly installed thereon. A horizontal upper stop (12) is fixedly installed between the upper ends of the two first connecting rods (11). A lower stop (10) is installed below the upper stop (12). A row of vertical second connecting rods (13) is fixedly installed between the upper stop (12) and the lower stop (10).

6. The apparatus of claim 1, wherein: A second groove is provided on the upper surface of the base (19), and a second electric telescopic rod (18) is fixedly installed inside the second groove. The telescopic end of the second electric telescopic rod (18) is vertically upward and fixedly connected to the lower surface of the base (19).

7. The maintenance device for ultra-large storage tanks according to claim 1, characterized in that: Two vertical connecting columns (20) are fixedly installed on the upper surface of the base (19). The two connecting columns (20) are located on both sides of the seat groove (17). A connecting plate (23) is fixedly installed on the lower end of the side face of the two connecting columns (20) that are close to each other. A second mechanical telescopic rod (22) is fixedly installed on the upper end of the two connecting plates (23). The telescopic ends of the two second mechanical telescopic rods (22) are vertically upward and fixedly connected to the lower end face of the two connecting blocks (21).

8. The apparatus of claim 1, wherein: A third electric telescopic rod (24) is fixedly installed on the side end face of the two connecting blocks (21) that are close to each other, and the telescopic ends of the two third electric telescopic rods (24) face each other; a clamping plate (25) is fixedly installed on the telescopic ends of the two third electric telescopic rods (24).

9. The apparatus of claim 1, wherein: One end of the first safety belt (26) and one end of the second safety belt (27) are fixedly connected to the two sides of the front end face of the seat (19), respectively. The other end of the first safety belt (26) is fixedly provided with a buckle, and the other end of the second safety belt (27) is provided with a buckle groove. The buckle and the buckle groove are detachably connected.

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