Auxiliary frame for disassembling and assembling manhole door plate of oil storage tank
By designing an auxiliary frame for disassembling and assembling manhole doors of oil storage tanks, and utilizing components such as support sleeves, support rods, and lifting safety hooks, the problem of labor-intensive and safety hazards associated with manual disassembly of manhole doors of oil tanks has been solved, achieving efficient and safe disassembly and assembly of doors.
Patent Information
- Application Number
- CN202423321722.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing manhole doors of oil tanks are mainly disassembled manually, which consumes a lot of manpower and poses a high safety hazard.
The design incorporates an auxiliary frame for disassembling and assembling manhole doors for oil storage tanks. The door panels are suspended using a support sleeve and support rod in conjunction with a lifting safety hook. The frame is protected by bearings and a sealing cover. A mobile trolley and universal self-locking wheels facilitate operation, and a counterweight bar balances the lifting, improving disassembly and assembly efficiency and safety.
It effectively saves manpower, improves the efficiency of door panel disassembly and assembly, reduces safety risks, reduces damage to fixing bolts, enables disassembly and assembly of multiple oil tanks, and reduces costs.
Smart Images

Figure CN223973144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil storage tank door panel disassembly and assembly technology, and in particular to an auxiliary frame for disassembling and assembling oil storage tank manhole door panels. Background Technology
[0002] Oil storage tanks, also known simply as oil tanks or storage tanks, are large, regularly shaped containers used for storing oil products, often cylindrical in form. The tank body consists of three parts: a top cover, wall panels, and a bottom plate. They are generally used for storing heavy oil products. These tanks offer advantages such as saving steel, good durability, low maintenance costs, and minimal oil loss, but require more construction steps and have a longer construction period. Semi-underground or underground reinforced concrete oil tanks also offer advantages such as good fire resistance, smaller tank spacing, and smaller temperature differences between wall panels. Oil storage tanks are usually equipped with manholes to facilitate personnel access for cleaning the oil residue at the bottom of the tank. Maintenance and repair of the tank's buoys and piping facilities are essential tasks for oil storage companies, and the disassembly and assembly of manhole doors is an indispensable part of the work.
[0003] The existing manhole doors of some oil tanks are mainly disassembled manually. Since the doors are made of relatively thick steel plates, the disassembly and assembly process not only requires a lot of manpower and consumes a lot of manpower, but also poses a high safety hazard due to the risk of the doors falling. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of existing oil tank manhole door panels, which mainly rely on manual disassembly. Since the door panels are mainly made of relatively thick steel plates, the disassembly and assembly process not only requires a lot of manpower and consumes a lot of manpower, but also poses a high safety hazard due to the risk of the door panels falling. This utility model provides an auxiliary frame for disassembling and assembling oil tank manhole door panels.
[0005] The purpose of this utility model is achieved through the following technical solution: an auxiliary frame for disassembling and assembling manhole doors of oil storage tanks, including a door panel and a manhole opening. The door panel is connected to a second flange on the manhole opening via a first flange. A lifting part is installed on the first flange. A support sleeve is provided on one side of the door panel. A rotatable support rod is installed on the support sleeve. A lifting safety hook connected to the lifting part is installed at the end of the support rod away from the support sleeve. The lifting safety hook is detachably connected to the lifting part. By setting the support rod on the support sleeve in conjunction with the lifting safety hook, the door panel can be lifted to fix the position of the door panel and the manhole opening, which facilitates the installation and disassembly of the door panel. The support sleeve and the support rod can drive the door panel to rotate, effectively saving manpower. At the same time, the support sleeve and the support rod can facilitate the suspension and fixation of the door panel, avoiding the damage and loosening of the remaining fixing bolts due to the loosening of some fixing bolts during the disassembly of the door panel, effectively improving the installation and disassembly efficiency of the door panel.
[0006] The support sleeve contains a bearing, and the support rod extends into the support sleeve and connects to the inner ring of the bearing. The support sleeve is equipped with a bearing seal cover corresponding to the bearing. The bearing seal cover seals the bearing to prevent dust and impurities from entering the bearing, thereby protecting the bearing and extending its service life.
[0007] A further technical solution is that the first flange and the second flange are connected by fixing bolts, and a flange gasket is installed between the first flange and the second flange. Setting fixing bolts to fix the first flange and the second flange can improve the installation and disassembly efficiency between the first flange and the second flange, and at the same time has the advantage of a firm and reliable connection. Setting a flange gasket between the first flange and the second flange can improve the sealing effect between the first flange and the second flange.
[0008] A further technical solution is to connect one end of the support rod to the lifting safety hook via a hinge. Setting a hinge to connect the support rod and the lifting safety hook has the advantages of stable connection and high flexibility, which facilitates the hoisting of the door panel.
[0009] A further technical solution is to provide a lubricant filling hole on the bearing seal cover, which corresponds to the bearing. A sealing plug is installed at the oil inlet end of the lubricant filling hole. The lubricant filling hole facilitates the addition of lubricant to the bearing for maintenance and upkeep, effectively extending the bearing's service life.
[0010] A further technical solution is to connect the side of the support sleeve to the second flange.
[0011] A further technical solution is to install a mobile trolley on the bottom surface of the support sleeve, and to install universal self-locking wheels on the bottom surface of the mobile trolley. By setting universal self-locking wheels on the mobile trolley on the bottom surface of the support sleeve, the support sleeve can be moved and fixed easily, thereby enabling the mobile support sleeve to perform door panel disassembly operations for multiple oil tanks in the tank area, effectively saving costs.
[0012] A further technical solution is to install reinforcing ribs on the support rod, which can improve the strength of the support rod.
[0013] A further technical solution is to install a handle on the door panel, which makes it easier for people to operate the door panel and improves the convenience of operation.
[0014] A further technical solution is to install a counterweight rod on the side of the support rod away from the lifting safety hook, and install a detachable counterweight block on the counterweight rod. By setting the counterweight rod and the counterweight block together, a balancing effect can be achieved when the support rod lifts and disassembles the door panel, so as to avoid the trolley from tipping over due to unbalanced force and effectively ensure the stability of the trolley.
[0015] This utility model has the following advantages: By setting a support rod on the support sleeve in conjunction with a lifting safety hook, the door panel can be suspended to fix the position of the door panel and the manhole opening, which facilitates the installation and disassembly of the door panel. The support sleeve and support rod can drive the door panel to rotate, effectively saving manpower. At the same time, the combination of the support sleeve and support rod can facilitate the suspension and fixation of the door panel, avoiding the damage to the remaining fixing bolts due to stress during the disassembly of the door panel, which is not easy to loosen. This effectively improves the installation and disassembly efficiency of the door panel. By setting universal self-locking wheels on the moving trolley on the bottom of the support sleeve, the movement and fixation of the support sleeve can be facilitated. Thus, the door panel disassembly operation of multiple oil tanks in the tank area can be carried out by the mobile support sleeve, which effectively saves costs. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present utility model;
[0017] Figure 2 This is a side view sectional diagram of the present invention;
[0018] Figure 3 This is a schematic diagram of another embodiment of the present invention;
[0019] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle;
[0020] In the diagram, 1. Door panel; 2. First flange; 3. Manhole opening; 4. Second flange; 5. Support sleeve; 6. Bearing; 7. Support rod; 8. Lifting safety hook; 9. Lifting part; 10. Hinge; 11. Reinforcing rib; 12. Fixing bolt; 13. Handle; 14. Bearing seal cover; 15. Moving trolley; 16. Lubricant filling hole; 17. Sealing plug; 18. Counterweight rod; 19. Counterweight block. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Example 1, as Figures 1-4As shown, the auxiliary frame for disassembling and assembling the manhole door panel of the oil storage tank includes a door panel 1 and a manhole opening 3. The door panel 1 is connected to the second flange 4 on the manhole opening 3 via a first flange 2. A lifting part 9 is installed on the first flange 2. A support sleeve 5 is provided on one side of the door panel 1. A rotatable support rod 7 is installed on the support sleeve 5. A lifting safety hook 8 connected to the lifting part 9 is installed at the end of the support rod 7 away from the support sleeve 5. The lifting safety hook 8 is detachably connected to the lifting part 9. By setting the support rod 7 on the support sleeve 5 in conjunction with the lifting safety hook 8, the door panel 1 can be lifted to fix the relative positions of the door panel 1 and the manhole opening 3, which facilitates the installation and disassembly of the door panel 1. The support sleeve 5 and the support rod 7 can drive the door panel 1 to rotate, effectively saving manpower. At the same time, the support sleeve 5 and the support rod 7 can facilitate the suspension and fixation of the door panel 1, avoiding the damage to the remaining fixing bolts 12 due to stress during the disassembly of the door panel 1 as some fixing bolts 12 are removed, which makes it difficult to loosen. This effectively improves the installation and disassembly efficiency of the door panel 1.
[0028] A bearing 6 is installed inside the support sleeve 5. A support rod 7 extends into the support sleeve 5 and connects to the inner ring of the bearing 6. A bearing sealing cover 14 corresponding to the bearing 6 is installed on the support sleeve 5. The bearing sealing cover 14 seals the bearing 6 to prevent dust and impurities from entering the bearing 6, thereby protecting the bearing 6 and extending its service life.
[0029] The first flange 2 and the second flange 4 are connected by fixing bolts 12, and a flange gasket is installed between the first flange 2 and the second flange 4. Setting fixing bolts 12 to fix the first flange 2 and the second flange 4 can improve the installation and disassembly efficiency between the first flange 2 and the second flange 4, and at the same time has the advantage of a firm and reliable connection. Setting a flange gasket between the first flange 2 and the second flange 4 can improve the sealing effect between the first flange 2 and the second flange 4.
[0030] One end of the support rod 7 is connected to the lifting safety hook 8 via a hinge 10. The hinge 10 connecting the support rod 7 and the lifting safety hook 8 has the advantages of stable connection and high flexibility, making it convenient to hoist the door panel 1.
[0031] The bearing sealing cover 14 has a lubricant filling hole 16 corresponding to the bearing 6. A sealing plug 17 is installed at the oil inlet end of the lubricant filling hole 16. The lubricant filling hole 16 facilitates the addition of lubricant to the bearing 6 for maintenance and upkeep, effectively extending the service life of the bearing 6.
[0032] The side of the support sleeve 5 is connected to the second flange 4.
[0033] The support rod 7 is equipped with a reinforcing rib 11, which can improve the strength of the support rod 7.
[0034] A handle 13 is installed on the door panel 1. The handle 13 makes it easier for people to operate the door panel 1 and improves the convenience of operation.
[0035] Example 2, as Figures 1-4 As shown, the device includes a door panel 1 and a manhole 3. The door panel 1 is connected to the manhole 3 via a first flange 2 and a second flange 4. A lifting part 9 is installed on the first flange 2. A support sleeve 5 is provided on one side of the door panel 1. A rotatable support rod 7 is installed on the support sleeve 5. A lifting safety hook 8 connected to the lifting part 9 is installed at the end of the support rod 7 away from the support sleeve 5. The lifting safety hook 8 is detachably connected to the lifting part 9. By setting the support rod 7 on the support sleeve 5 in conjunction with the lifting safety hook 8, the door panel 1 can be lifted to fix the relative positions of the door panel 1 and the manhole 3, which facilitates the installation and disassembly of the door panel 1. The support sleeve 5 and the support rod 7 can drive the door panel 1 to rotate, effectively saving manpower. At the same time, the combination of the support sleeve 5 and the support rod 7 facilitates the suspension and fixation of the door panel 1, avoiding the damage to the remaining fixing bolts 12 due to stress during the disassembly of the door panel 1, which is not easy to loosen. This effectively improves the installation and disassembly efficiency of the door panel 1.
[0036] A bearing 6 is installed inside the support sleeve 5. A support rod 7 extends into the support sleeve 5 and connects to the inner ring of the bearing 6. A bearing sealing cover 14 corresponding to the bearing 6 is installed on the support sleeve 5. The bearing sealing cover 14 seals the bearing 6 to prevent dust and impurities from entering the bearing 6, thereby protecting the bearing 6 and extending its service life.
[0037] The first flange 2 and the second flange 4 are connected by fixing bolts 12, and a flange gasket is installed between the first flange 2 and the second flange 4. Setting fixing bolts 12 to fix the first flange 2 and the second flange 4 can improve the installation and disassembly efficiency between the first flange 2 and the second flange 4, and at the same time has the advantage of a firm and reliable connection. Setting a flange gasket between the first flange 2 and the second flange 4 can improve the sealing effect between the first flange 2 and the second flange 4.
[0038] One end of the support rod 7 is connected to the lifting safety hook 8 via a hinge 10. The hinge 10 connecting the support rod 7 and the lifting safety hook 8 has the advantages of stable connection and high flexibility, making it convenient to hoist the door panel 1.
[0039] The bearing sealing cover 14 has a lubricant filling hole 16 corresponding to the bearing 6. A sealing plug 17 is installed at the oil inlet end of the lubricant filling hole 16. The lubricant filling hole 16 facilitates the addition of lubricant to the bearing 6 for maintenance and upkeep, effectively extending the service life of the bearing 6.
[0040] A mobile trolley 15 is installed on the bottom surface of the support sleeve 5, and a universal self-locking wheel is installed on the bottom surface of the mobile trolley 15. By setting the universal self-locking wheel on the mobile trolley 15 on the bottom surface of the support sleeve 5, the support sleeve 5 can be moved and fixed, thereby enabling the mobile support sleeve 5 to perform the disassembly operation of the door panels 1 of multiple oil tanks in the tank area, effectively saving costs. A reinforcing rib 11 is installed on the support rod 7, which can improve the strength of the support rod 7. A handle 13 is installed on the door panel 1, which makes it easier for personnel to operate the door panel 1 and improves the convenience of operation.
[0041] A counterweight rod 18 is installed on the side of the support rod 7 away from the lifting safety hook 8. A detachable counterweight block 19 is installed on the counterweight rod 18. By setting the counterweight rod 18 and the counterweight block 19 together, a balancing effect can be achieved when the support rod 7 lifts and disassembles the door panel 1, preventing the moving trolley 15 from tipping over due to unbalanced force, and effectively ensuring the stability of the moving trolley 15.
[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A storage tank manhole door plate dismounting auxiliary frame, comprising a door plate (1) and a manhole (3), the door plate (1) is connected with the second flange (4) on the manhole (3) through the first flange (2), characterized in that: The first flange (2) is provided with a lifting part (9), one side of the door plate (1) is provided with a supporting sleeve (5), the supporting sleeve (5) is provided with a rotatable supporting rod (7), one end of the supporting rod (7) away from the supporting sleeve (5) is provided with a lifting safety hook (8) connected with the lifting part (9), and the lifting safety hook (8) is detachably connected with the lifting part (9). The supporting sleeve (5) is provided with a bearing (6), the supporting rod (7) extends into the supporting sleeve (5) and is connected with the inner ring of the bearing (6), and the supporting sleeve (5) is provided with a bearing sealing cover (14) corresponding to the bearing (6). The bottom surface of the supporting sleeve (5) is provided with a moving trolley (15), and the bottom surface of the moving trolley (15) is provided with a universal self-locking wheel. One side of the supporting rod (7) away from the lifting safety hook (8) is provided with a counterweight rod (18), and the counterweight rod (18) is provided with a detachable counterweight block (19).
2. The oil tank manhole door plate dismounting auxiliary frame according to claim 1, characterized in that: The first flange (2) and the second flange (4) are connected through fixing bolts (12), and the first flange (2) and the second flange (4) are provided with flange pads.
3. The oil tank manhole door plate dismounting auxiliary frame according to claim 1, characterized in that: One end of the supporting rod (7) is connected with the lifting safety hook (8) through a hinge (10).
4. The oil tank manhole door plate dismounting auxiliary frame according to claim 1, characterized in that: The bearing sealing cover (14) is provided with a lubricant filling hole (16) corresponding to the bearing (6), and the oil inlet end of the lubricant filling hole (16) is provided with a sealing plug (17).
5. The oil tank manhole door plate dismounting auxiliary frame according to claim 1, characterized in that: The side surface of the supporting sleeve (5) is connected with the second flange (4).
6. The oil tank manhole door plate dismounting auxiliary frame according to claim 1, characterized in that: The supporting rod (7) is provided with a reinforcing rib (11).
7. The oil tank manhole door plate dismounting auxiliary frame according to claim 1, characterized in that: The door plate (1) is provided with a handle (13).