Safety auxiliary structure for coating anti-leakage paint on sealing surface of manhole cover of storage tank

Abstract

The utility model is suitable for the technical field of storage tank manhole cover and provides a kind of storage tank manhole cover sealing surface anti-seepage paint smearing safety auxiliary structure, including storage tank mouth, first fixed ring and second fixed ring, and tank cover is detachably provided on storage tank mouth, and sealing surface is equipped between storage tank mouth and tank cover.The storage tank manhole cover sealing surface anti-seepage paint smearing safety auxiliary structure, first, the first fixed ring and the second fixed ring are opened, and are sleeved on the periphery of the storage tank mouth, then the two half rings are firmly folded using the fastening bolt, and are fixed on the storage tank, then the paint head is adjusted to the appropriate contact distance with the sealing surface, the motor is started to drive the paint head to uniformly apply paint on the annular sealing surface, and the scraper follows to scrape, compact and arrange the already smeared paint, remove the excess paint, form uniform sealing layer, and the operator does not need to work in high place for a long time, only needs to install, load and start-stop operation, significantly improves the safety of high-altitude operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of manhole covers for storage tanks, and in particular relates to a safety auxiliary structure for applying anti-leakage coating to the sealing surface of a manhole cover for storage tanks. Background Technology

[0002] Manhole covers were originally designed as access points for storage tank maintenance, requiring access for personnel, equipment cleaning, and ventilation. With industrial development, their functions have gradually expanded to include pressure regulation (such as integrated breather valves), emergency pressure relief, fire and explosion protection, and other fields, becoming a core device for ensuring the safe operation of storage tanks.

[0003] After maintenance, existing manhole covers for storage tanks require a new layer of anti-leakage coating to be applied to their sealing surfaces to form an effective seal. Currently, this operation is usually carried out by workers using a scraper or brush. However, manhole covers are usually several meters off the ground, requiring workers to climb onto the manhole platform and carry tools and paint cans to perform the work. This poses a high risk of falls from heights, is inefficient, and the coating is prone to dripping during the application process, resulting in waste, pollution of the tank and the ground, and posing safety hazards and environmental problems. Utility Model Content

[0004] This utility model provides a safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover, aiming to solve the problem that workers need to climb to the manhole platform and carry tools and coating cans to carry out the work, which is prone to falling from height.

[0005] This utility model is implemented as follows: a safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover includes a storage tank opening, a first fixing ring, and a second fixing ring. A tank cover is detachably provided on the storage tank opening, and a sealing surface is provided between the storage tank opening and the tank cover.

[0006] The first fixing ring and the second fixing ring are detachably connected. Both the first fixing ring and the second fixing ring have an arc-shaped sliding groove in the middle. Both the first fixing ring and the second fixing ring have dovetail grooves on their surfaces and on both sides of the arc-shaped sliding groove. A sliding plate is slidably provided on the top of the dovetail groove along its circumferential direction. A material storage cylinder is provided on the top of the sliding plate. A lifting plate is provided on the top of the sliding plate and on the material storage cylinder. A paint head is provided at the bottom of the lifting plate. A scraper is provided on one side of the lifting plate.

[0007] Preferably, each of the dovetail grooves has a sliding block slidably disposed on its surface, the sliding plate is fixedly connected to the top of the sliding block, each of the arc-shaped grooves has a rack on its sidewall, the bottom of the sliding plate is vertically fixedly connected to a motor, and the output shaft of the motor is fixedly connected to a gear that meshes with the rack.

[0008] Preferably, one side of the storage cylinder is connected to a liquid inlet pipe, the top of the storage cylinder is connected to a liquid injection pipe, the liquid injection pipe is connected to the lifting plate, the bottom of the lifting plate is provided with a connecting pipe, and the coating head is located at the bottom end of the connecting pipe.

[0009] Preferably, an electric telescopic rod is vertically arranged on the front side of the sliding plate, the lifting plate is fixedly connected to the top of the electric telescopic rod, a first connecting rod is arranged on one side of the lifting plate, and the scraper is fixedly connected to one end of the first connecting rod.

[0010] Preferably, both ends of the first fixing ring and the second fixing ring are provided with fixing plates, and both fixing plates are provided with through holes. The first fixing ring and the second fixing ring are fixed by screwing fastening bolts into the through holes.

[0011] Preferably, both the first fixing ring and the second fixing ring are provided with arc-shaped receiving plates on their surfaces and inside the dovetail groove. The arc-shaped receiving plates have accommodating grooves and guide plates are inclinedly provided on their inner sides.

[0012] Preferably, a second connecting rod is detachably provided on the side wall of the second fixing ring, and a disc adapted to the tank opening is fixedly connected to one end of the second connecting rod. A storage trough for receiving paint is opened on the outer edge of the disc.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover. First, the first and second fixing rings are opened and placed around the outside of the storage tank opening. Then, the two halves of the ring are firmly closed and fixed to the storage tank using fastening bolts. The lifting plate is lowered to adjust the coating head to a suitable contact distance with the sealing surface. Next, the motor is started to drive the sliding plate to move along its annular surface. At the same time, the coating head is driven to evenly apply the coating to the annular sealing surface. Behind the coating head, the scraper follows closely to scrape, compact, and tidy up the applied coating, removing excess coating to form a uniform sealing layer. After completing a full circle of coating, the coating head and scraper are raised, the sliding plate is pushed back to the starting point, the fastening bolts are loosened, and the first and second fixing rings are removed and cleaned for future use. Operators no longer need to work at heights for extended periods; they only need to perform installation, loading, and start-up / stop operations, significantly improving the safety of high-altitude operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the manhole cover of this utility model;

[0016] Figure 2This is a three-dimensional structural diagram of the safety auxiliary mechanism in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the first fixing ring and the second fixing ring in this utility model;

[0018] Figure 4 This is a schematic diagram of the gear and rack meshing structure in this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the disc in this utility model;

[0020] Figure 6 This is a front cross-sectional view of the first fixing ring in this utility model;

[0021] In the diagram: 1. Tank opening; 2. Tank cover; 3. Sealing surface; 4. First fixing ring; 5. Second fixing ring; 6. Fixing plate; 7. Through hole; 8. Fastening bolt; 9. Arc-shaped sliding groove; 10. Dovetail groove; 11. Sliding block; 12. Sliding plate; 13. Storage cylinder; 14. Electric telescopic rod; 15. Lifting plate; 16. Connecting pipe; 17. Paint head; 18. First connecting rod; 19. Scraper; 20. Liquid inlet pipe; 21. Liquid injection pipe; 22. Gear; 23. Rack; 24. Motor; 25. Arc-shaped receiving plate; 26. Receiving tank; 27. Guide plate; 28. Second connecting rod; 29. ​​Disc; 30. Storage tank. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] First Embodiment

[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover, including a storage tank opening 1, a first fixing ring 4 and a second fixing ring 5, a tank cover 2 detachably provided on the storage tank opening 1, and a sealing surface 3 provided between the storage tank opening 1 and the tank cover 2;

[0025] The first fixing ring 4 and the second fixing ring 5 are detachably connected. Both the first fixing ring 4 and the second fixing ring 5 have an arc-shaped sliding groove 9 in the middle. Both the first fixing ring 4 and the second fixing ring 5 have dovetail grooves 10 on their surfaces and on both sides of the arc-shaped sliding groove 9. A sliding plate 12 is slidably provided on the top of the dovetail groove 10 along its circumferential direction. A storage cylinder 13 is provided on the top of the sliding plate 12. A lifting plate 15 is provided on the top of the sliding plate 12 and on the storage cylinder 13. A paint head 17 is provided at the bottom of the lifting plate 15. A scraper 19 is provided on one side of the lifting plate 15.

[0026] In this embodiment, the first fixing ring 4 and the second fixing ring 5 together form a complete rigid support ring with an inner diameter slightly larger than the outer diameter of the flange of the tank opening 1, which allows the auxiliary structure to be quickly fitted in or removed from the side without the need for hoisting from above the manhole cover, greatly facilitating high-altitude operations.

[0027] When the two rings are closed, the arc-shaped sliding grooves 9 at both ends and the dovetail grooves 10 together form a circular track with a radius greater than 180°.

[0028] The storage container 13 is used to store the sealant (such as liquid sealant) to be applied.

[0029] The paint nozzle 17 can be designed as a flat nozzle according to the shape of the sealing surface 3 (usually a flat or inclined surface), and its function is to apply paint evenly to the sealing surface 3.

[0030] The blade shape of the scraper 19 matches the sealing surface 3. After the paint head 17 completes the initial coating, the scraper 19 can move to remove excess paint and make the coating smoother and denser, ensuring the formation of a high-quality sealing film without bubbles or breaks.

[0031] Open the first fixing ring 4 and the second fixing ring 5 and place them around the outside of the tank opening 1. Then, use the fastening bolts 8 to firmly close the two halves of the ring and fix them to the tank. Fill the prepared sealing paint into the storage cylinder 13. Lower the lifting plate 15 so that the paint head 17 is adjusted to a suitable contact distance with the sealing surface 3. Then, while slowly and evenly moving the sliding plate 12 around the tank, paint is supplied through the storage cylinder 13. The paint head 17 then evenly applies the paint to the annular sealing surface 3. Behind the paint head 17, the scraper 19 follows closely to scrape, compact, and tidy up the applied paint, removing excess paint to form a uniform sealing layer. After completing a full circle of application, raise the paint head 17 and the scraper 19, push the sliding plate 12 back to the starting point, loosen the fastening bolts 8, and remove the first fixing ring 4 and the second fixing ring 5. Clean them for future use.

[0032] Please refer to Figure 4 and Figure 6Furthermore, each of the dovetail grooves 10 is slidably provided with a sliding block 11, the sliding plate 12 is fixedly connected to the top of the sliding block 11, each of the arc-shaped grooves 9 is provided with a rack 23 on its sidewall, the bottom of the sliding plate 12 is vertically fixedly connected with a motor 24, and the output shaft of the motor 24 is fixedly connected with a gear 22 that meshes with the rack 23.

[0033] In this embodiment, by controlling the forward and reverse rotation of the motor 24, the gear 22 can be driven to rotate. Since the gear 22 meshes with the fixed rack 23, a driving force is generated, which pushes the entire sliding plate 12 and all its components to move precisely in a circumferential direction along the first fixed ring 4 and the second fixed ring 5.

[0034] Please refer to Figure 2 Furthermore, one side of the storage cylinder 13 is connected to a liquid inlet pipe 20, and the top of the storage cylinder 13 is connected to a liquid injection pipe 21. The liquid injection pipe 21 is connected to the lifting plate 15, and a connecting pipe 16 is provided at the bottom of the lifting plate 15. The paint head 17 is located at the bottom end of the connecting pipe 16.

[0035] In this embodiment, the storage cylinder 13 serves as a transfer and storage tank for the paint. A liquid inlet pipe 20 is connected to the lower part or bottom of one side of the cylinder. The other end of the liquid inlet pipe 20 is connected to an external, large-capacity paint supply source (such as a high-pressure paint pump or a high-level material tank) to continuously pump paint into the storage cylinder 13, ensuring a sufficient supply of paint during operation.

[0036] Please refer to Figure 2 Furthermore, an electric telescopic rod 14 is vertically arranged on the front side of the sliding plate 12, and the lifting plate 15 is fixedly connected to the top end of the electric telescopic rod 14. A first connecting rod 18 is arranged on one side of the lifting plate 15, and the scraper 19 is fixedly connected to one end of the first connecting rod 18.

[0037] In this embodiment, the electric telescopic rod 14 has its own electronic charging function and does not need to be connected to an external power source, thus avoiding the situation of the wire getting tangled when the sliding plate 12 moves along its annular surface.

[0038] In the initial state, the feed pump injects material into the system, controls the electric telescopic rod 14 to rise, raising the lifting plate 15 and its paint head 17 and scraper 19 to a safe height. The drive motor 24 positions the sliding plate 12 to the starting position, and starts the electric telescopic rod 14 to descend smoothly, precisely adjusting the paint head 17 and scraper 19 to the preset working distance from the sealing surface 3. The external feed pump and paint head 17 are started, and the drive motor 24 is started simultaneously. The execution unit begins uniform circumferential movement for spraying and leveling. After one cycle, all power sources automatically stop. The electric telescopic rod 14 raises the execution unit, the equipment resets, and finally, it is disassembled and cleaned.

[0039] Please refer to Figure 2 and Figure 3 Furthermore, both ends of the first fixing ring 4 and the second fixing ring 5 are provided with fixing plates 6, and both fixing plates 6 are provided with through holes 7. The first fixing ring 4 and the second fixing ring 5 are fixed by screwing fastening bolts 8 into the through holes 7.

[0040] In this embodiment, during installation, the two halves of the ring are fitted onto the tank opening 1, aligning the fixing plates 6 at both ends. By passing the fastening bolts 8 through the aligned through holes 7 and tightening the nuts, the first fixing ring 4 and the second fixing ring 5 can be firmly fixed together and tightly bound to the tank. This design is simple, reliable in locking, and easy to install and disassemble quickly.

[0041] Second Embodiment

[0042] Please refer to the image. Figure 2 , Figure 3 and Figure 5 Based on the same concept as the first embodiment described above, both the first fixing ring 4 and the second fixing ring 5 are provided with arc-shaped receiving plates 25 on their surfaces and inside the dovetail groove 10. The arc-shaped receiving plate 25 has a receiving groove 26 inside, and a guide plate 27 is inclinedly provided on the inner side of the arc-shaped receiving plate 25. The side wall of the second fixing ring 5 is detachably provided with a second connecting rod 28. One end of the second connecting rod 28 is fixedly connected to a disc 29 that is adapted to the tank opening 1. The outer edge of the disc 29 has a storage trough 30 for receiving paint.

[0043] In this embodiment, the arc-shaped receiving plate 25 has the same curvature as the first fixing ring 4 and the second fixing ring 5, and together they form an annular protective tray located below the entire coating station, used to receive and temporarily store excess paint that drips, splashes, or overflows due to scraping by the scraper 19.

[0044] The function of the guide plate 27 is to effectively guide the paint that may flow down the tank wall into the receiving tank 26 below, preventing it from contaminating the outer wall of the tank or dripping directly onto the ground.

[0045] To prevent the coating from dripping into the tank under gravity and contaminating the medium inside, this embodiment has a special protective cover installed at the tank opening 1.

[0046] During the coating operation, the disc 29 does not completely cover the manhole, but is suspended directly above or slightly embedded in the tank opening 1. The paint flowing down from the sealing surface 3 will drip onto the disc surface of the disc 29 and be effectively collected by the guide of its inclined surface or directly into the storage tank 30 on the outer edge, thereby completely blocking the path of the paint into the tank.

[0047] After the work is completed, the disc 29 and the arc-shaped receiving plate 25 can be easily removed to collect and clean up or recycle the excess paint. This not only keeps the work site clean and avoids pollution from hazardous chemicals, but also saves materials.

[0048] The working principle and usage process of this utility model are as follows: After the utility model is installed, the first fixing ring 4 and the second fixing ring 5 are opened and placed around the outside of the tank opening 1. Then, the two halves of the ring are firmly closed and fixed on the tank using the fastening bolts 8. The lifting plate 15 is lowered so that the paint head 17 is adjusted to a suitable contact distance with the sealing surface 3. Then, the motor 24 is started to drive the sliding plate 12 to move along its annular surface. At the same time, the paint head 17 is driven to evenly apply the paint onto the annular sealing surface 3. Behind the paint head 17, the scraper 19 follows closely to scrape, compact, and tidy up the applied paint, remove excess paint, and form a uniform sealing layer. After completing a full circle of application, the paint head 17 and scraper 19 are raised, the sliding plate 12 is pushed back to the starting point, the fastening bolts 8 are loosened, and the first fixing ring 4 and the second fixing ring 5 are removed and cleaned for future use.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover, comprising a tank opening (1), a first fixing ring (4), and a second fixing ring (5), characterized in that: A tank cover (2) is detachably provided on the tank opening (1), and a sealing surface (3) is provided between the tank opening (1) and the tank cover (2); The first fixing ring (4) and the second fixing ring (5) are detachably connected. Both the first fixing ring (4) and the second fixing ring (5) have an arc-shaped groove (9) in the middle. Both the first fixing ring (4) and the second fixing ring (5) have dovetail grooves (10) on their surfaces and on both sides of the arc-shaped groove (9). The top of the dovetail groove (10) is provided with a sliding plate (12) that can slide along its ring surface direction. The top of the sliding plate (12) is provided with a storage cylinder (13). The top of the sliding plate (12) and the storage cylinder (13) are provided with a lifting plate (15) that can be raised and lowered. The bottom end of the lifting plate (15) is provided with a paint head (17). The side of the lifting plate (15) is provided with a scraper (19).

2. The safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover as described in claim 1, characterized in that: Each of the dovetail grooves (10) is slidably provided with a sliding block (11), and the sliding plate (12) is fixedly connected to the top of the sliding block (11). Each of the arc-shaped grooves (9) is provided with a rack (23) on its sidewall. The bottom of the sliding plate (12) is vertically fixedly connected with a motor (24), and the output shaft of the motor (24) is fixedly connected with a gear (22) that meshes with the rack (23).

3. The safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover as described in claim 1, characterized in that: One side of the storage cylinder (13) is connected to a liquid inlet pipe (20), and the top of the storage cylinder (13) is connected to a liquid injection pipe (21). The liquid injection pipe (21) is connected to the lifting plate (15), and a connecting pipe (16) is provided at the bottom of the lifting plate (15). The paint head (17) is located at the bottom end of the connecting pipe (16).

4. The safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover as described in claim 1, characterized in that: An electric telescopic rod (14) is vertically arranged on the front side of the sliding plate (12), and the lifting plate (15) is fixedly connected to the top of the electric telescopic rod (14). A first connecting rod (18) is arranged on one side of the lifting plate (15), and the scraper (19) is fixedly connected to one end of the first connecting rod (18).

5. The safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover as described in claim 1, characterized in that: Both ends of the first fixing ring (4) and the second fixing ring (5) are provided with fixing plates (6), and both fixing plates (6) are provided with through holes (7).

6. The safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover as described in claim 1, characterized in that: Both the first fixing ring (4) and the second fixing ring (5) are provided with arc-shaped receiving plates (25) on their surfaces and inside the dovetail groove (10). The arc-shaped receiving plate (25) has a receiving groove (26) inside, and a guide plate (27) is inclinedly provided on the inner side of the arc-shaped receiving plate (25).

7. The safety auxiliary structure for applying anti-leakage coating to the sealing surface of a storage tank manhole cover as described in claim 1, characterized in that: The second fixing ring (5) is detachably provided with a second connecting rod (28) on its side wall. One end of the second connecting rod (28) is fixedly connected to a disc (29) that is adapted to the tank opening (1). The outer edge of the disc (29) is provided with a storage trough (30) for receiving paint.

Images