Device for conveniently disassembling and assembling inner container of manhole door of hearth
By designing a convenient device for disassembling and assembling the inner liner of the furnace manhole door and using structures such as fixing bolts, spring hinges and rotating pins, the problem of requiring the cooperation of multiple people to disassemble and assemble the inner liner is solved, and efficient disassembly and assembly by one person is achieved, while safety is improved.
Patent Information
- Application Number
- CN202422547530.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the prior art, the inner liner of the furnace manhole door is heavy and requires the cooperation of multiple people during disassembly and assembly, which poses a safety risk and is inconvenient to operate.
A convenient device for disassembling and assembling the liner of the furnace manhole door is designed, which includes a connecting plate body, a door frame body, a door cover body and an liner body. Through structures such as fixing bolts, spring hinges and rotating pins, the liner can be easily disassembled and assembled, reducing the difficulty of manual operation and safety risks.
The liner can be efficiently disassembled and assembled by one person, which reduces safety risks and improves the simplicity and safety of operation.
Smart Images

Figure CN223319107U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boiler maintenance, in particular to a device for conveniently disassembling and assembling an inner liner of a furnace manhole door. Background Art
[0002] Boiler maintenance is an important part of ensuring the safe and stable operation of the boiler. Boiler maintenance is a complex and important task that needs to be carried out strictly in accordance with relevant standards and specifications. Only by doing a good job of maintenance can we ensure the safe and stable operation of the boiler and provide a reliable heat source for production and life.
[0003] Existing related technologies often have the following defects: because the inner liner of the furnace manhole door is heavy, when the furnace manhole door is opened or closed for maintenance, the operators need 2 to 3 people to cooperate in disassembling and installing the manhole door inner liner because the inner liner is relatively heavy and located at a high position. In addition, there is a risk of the inner liner falling off and injuring people when disassembling and installing it by manpower.
[0004] Therefore, the utility model provides a device for conveniently disassembling and assembling the inner liner of a furnace manhole door. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcoming in the prior art that it is inconvenient to disassemble and assemble the inner liner, and to propose a device for conveniently disassembling and assembling the inner liner of a furnace manhole door.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a convenient disassembly and assembly device for the inner liner of a furnace manhole door, comprising a connecting plate body and an inner liner body, a door frame body is installed on the inner side of the connecting plate body, a plurality of door frame and connecting plate fixing bolts are passed through the interior of the door frame body and the connecting plate body, the door frame body and the connecting plate body are fixed by means of a plurality of door frame and connecting plate fixing bolts, a door cover body is detachably installed on the inner side of the door frame body, a plurality of door cover fixing bolts are passed through the interior of the door frame body, and a door cover handle is fixedly installed on the door cover body.
[0007] Preferably, four mounting seats in groups of two are fixedly mounted on the surface of the inner container body, and the handle bodies are rotatably mounted inside two of the mounting seats.
[0008] Preferably, a spring hinge is fixedly installed on the surface of the door frame body, and a door frame and door cover connecting arm is rotatably installed on the side wall of the spring hinge. An inner liner connecting arm is fixedly installed on the other end of the door frame and door cover connecting arm, and a rotating latch fixing bolt is connected to the internal thread of the inner liner connecting arm, and a rotating latch body is rotatably installed on the side wall of the rotating latch fixing bolt.
[0009] Preferably, two mounting rods are fixedly mounted on the surface of the mounting seat, and inserting plates are slidably mounted on the side walls of the two mounting rods. A plurality of slots are evenly arranged on the side walls of the handle body, and the size of the slots matches the size of the inserting plates.
[0010] Preferably, a circular block is fixedly mounted on the upper end of the mounting rod, a spring body is sleeved on the side wall of the mounting rod, and both ends of the spring body are fixedly connected to the circular block and the inserting plate respectively.
[0011] Preferably, a slide bar is slidably connected to the interior of the mounting seat, and the other end of the slide bar is fixedly connected to a support block, and the support block is a "U"-shaped structure.
[0012] In summary:
[0013] In the utility model, the device mainly consists of a manhole door with an inner liner and a device for convenient disassembly and assembly of the inner liner. The connecting plate body is arranged on the boiler wall. The manhole door frame body and the connecting plate body are connected by door frame and connecting plate fixing bolts. The manhole door cover body and the door frame body are connected by connecting arm hinges. The door cover body is sealed by door cover fixing bolts arranged around the edge of the door cover. A door cover handle is arranged on the door cover body to facilitate opening and closing the manhole door. The door frame body has a detachable inner liner body, and the inner liner body is conveniently disassembled and assembled. The door frame and door cover connecting arm and the connecting plate body are connected by a spring hinge. The rotating latch body is fixed to the end of the door frame and door cover connecting arm, and is fastened by the rotating latch fixing bolts thereon. The staff uses a wrench to loosen the door cover fastening bolts to open the manhole door cover body, and erect the inner liner connecting arm upward to make it parallel to the inner liner, so that the inner liner handle body stands up. In this process, first pull the plug plates on the two fixed rods. After lifting the plug plates to a certain height, slide the slider inside the mounting seat, and the support block will move to the outer sleeve of the fixed rod. The locking mechanism of the handle body after twisting is realized, and the locking mechanism of the handle body after twisting is realized, thereby improving the stability of the subsequent rotational latch rotation and tilting insertion into the inner liner handle body for locking. The rotational latch is rotated and tilted and inserted into the inner liner handle body to make the rotational latch body horizontal and tighten the rotational latch fixing bolt so that the liner connecting arm is tightly connected to the liner body. The staff slowly lowers the liner connecting arm through the liner connecting arm handle body, and the spring hinge of the door frame and the door cover connecting arm is stressed to reduce the weight of the liner body during the lowering process. The installation of the liner body can be done in reverse order according to the disassembly steps. This device can effectively solve the problem of the need for multiple people to cooperate in the disassembly and assembly of the manhole door liner body, and the operation is simple and efficient, which reduces safety risks and effectively ensures personal safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the expanded structure of the utility model;
[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the local structure;
[0017] Figure 4 This is a schematic structural diagram of the inner liner body of the present invention;
[0018] Figure 5 This is a structural diagram of the connecting arm between the door frame and the door cover in the present invention;
[0019] Figure 6 This is a structural diagram of the handle body in the present utility model;
[0020] Figure 7 For this utility model Figure 6 Schematic diagram of the local structure.
[0021] Legend: 1. Connecting plate body; 2. Door frame body; 3. Door cover body; 4. Spring hinge; 5. Door frame and door cover connecting arm; 6. Door cover handle; 7. Door frame and connecting plate fixing bolt; 8. Door cover fixing bolt; 9. Inner liner body; 10. Handle body; 11. Rotating latch body; 12. Rotating latch fixing bolt; 13. Inner liner connecting arm; 14. Mounting seat; 15. Slot; 16. Slide; 17. Support block; 18. Mounting rod; 19. Round block; 20. Spring body; 21. Insert plate. DETAILED DESCRIPTION
[0022] Reference Figure 1-7 As shown, the utility model provides a technical solution: a convenient device for disassembling and assembling the inner liner of a furnace manhole door, comprising a connecting plate body 1 and an inner liner body 9, wherein a door frame body 2 is installed on the inner side of the connecting plate body 1.
[0023] The following is a detailed description of its overall specific settings and functions.
[0024] In this embodiment: a plurality of door frame and connecting plate fixing bolts 7 are provided inside the door frame body 2 and the connecting plate body 1. The door frame body 2 and the connecting plate body 1 are fixed with the aid of the plurality of door frame and connecting plate fixing bolts 7. A door cover body 3 is detachably mounted on the inner side of the door frame body 2. A plurality of door cover fixing bolts 8 are provided inside the door frame body 2. Four mounting seats 14 arranged in groups of two are fixedly mounted on the surface of the inner liner body 9. A handle body 10 is rotatably mounted inside the two mounting seats 14. A door cover handle 6 is fixedly mounted on the door cover body 3. A spring hinge 4 is fixedly mounted on the surface of the door frame body 2. A door frame and door cover connecting arm 5 is rotatably mounted on the side wall of the spring hinge 4. An inner liner connecting arm 13 is fixedly mounted on the other end of the door frame and door cover connecting arm 5. A rotary latch fixing bolt 12 is threadedly connected to the inner side of the inner liner connecting arm 13. A rotary latch body 11 is rotatably mounted on the side wall of the rotary latch fixing bolt 12.
[0025] Specifically, two mounting rods 18 are fixedly mounted on the surface of the mounting base 14. Insertion plates 21 are slidably mounted on the sidewalls of the two mounting rods 18. Several slots 15 are evenly spaced on the sidewalls of the handle body 10, and the dimensions of the slots 15 match those of the insertion plates 21. A circular block 19 is fixedly mounted on the upper end of the mounting rods 18. A spring body 20 is sleeved on the sidewalls of the mounting rods 18, and the ends of the spring body 20 are respectively fixedly connected to the circular block 19 and the insertion plates 21. A slide bar 16 is slidably connected to the interior of the mounting base 14. The other end of the slide bar 16 is fixedly connected to a support block 17, which has a "U"-shaped structure.
[0026] Working principle: This device mainly consists of a manhole door with an inner liner and a convenient device for disassembling and assembling the inner liner. The connecting plate body 1 is arranged on the boiler wall. The manhole door frame body 2 is connected to the connecting plate body 1 using the door frame and the connecting plate fixing bolts 7. The manhole door cover body 3 is connected to the door frame body 2 through a connecting arm hinge. The door cover body 3 is sealed by the door cover fixing bolts 8 arranged around the edge of the door cover. A door cover handle 6 is arranged on the door cover body 3 to facilitate opening and closing the manhole door. The door frame body 2 has a detachable inner liner body 9 inside. The convenient device for disassembling and assembling the inner liner body 9 is connected by the door frame and the door cover. The arm 5 is connected to the connecting plate body 1 by a spring hinge 4, and the rotating latch body 11 is fixed to the end of the door frame and the door cover connecting arm 5, and is fastened by the rotating latch fixing bolt 12 thereon. The staff uses a wrench to loosen the door cover fastening bolt to open the manhole door cover body 3, and erect the inner liner connecting arm 13 upward to make it parallel to the inner liner, so that the inner liner handle body 10 stands up. In this process, first pull the plug plates 21 on the two fixed rods, and after lifting the plug plates 21 to a certain height, slide the slide bar 16 inside the mounting seat 14, and the support block 17 will move and sleeve on the outside of the fixed rod, and at this time The support block 17 can support the rear plug-in plate 21 after it is lifted. The staff can flexibly rotate the handle body 10 inside the two mounting seats 14. After the handle body 10 is rotated to the upright position, the support block 17 is pulled. At this time, the plug-in plate 21 is inserted into the inner side of the corresponding card slot 15 on the handle body 10 by the elastic force of the spring body 20 on the two circular blocks 19, which can realize the locking work of the twisted handle body 10, thereby improving the stability of the subsequent rotation pin rotating and tilting to insert the inner side of the inner liner handle body 10 for locking. Inside the body 10, make the rotating latch body 11 horizontal and tighten the rotating latch fixing bolt 12, so that the inner liner connecting arm 13 is tightly connected to the inner liner body 9. The staff slowly lowers the inner liner connecting arm 13 through the handle body 10 of the inner liner connecting arm 13. The spring hinge 4 of the door frame and the door cover connecting arm 5 is stressed to reduce the weight of the inner liner body 9 during the lowering process. The installation of the inner liner body 9 can be done in reverse order according to the disassembly steps. This device can effectively solve the problem of multiple people cooperating in the disassembly and assembly of the manhole door inner liner body 9, and the operation is simple and efficient, which reduces safety risks and effectively ensures personal safety.
[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
Claims
1. A device for conveniently disassembling and assembling the inner liner of a furnace manhole door, comprising a connecting plate body (1) and an inner liner body (9), characterized in that: A door frame body (2) is installed on the inner side of the connecting plate body (1), and a plurality of door frame and connecting plate fixing bolts (7) are passed through the interior of the door frame body (2) and the connecting plate body (1). The door frame body (2) and the connecting plate body (1) are fixed by means of the plurality of door frame and connecting plate fixing bolts (7). A door cover body (3) is detachably installed on the inner side of the door frame body (2), and a plurality of door cover fixing bolts (8) are passed through the interior of the door frame body (2). A door cover handle (6) is fixedly installed on the door cover body (3).
2. The device for conveniently disassembling and assembling the inner liner of a furnace manhole door according to claim 1, characterized in that: Four mounting seats (14) are fixedly mounted on the surface of the inner container body (9) in groups of two, and the handle bodies (10) are rotatably mounted inside two of the mounting seats (14).
3. The device for conveniently disassembling and assembling the inner liner of a furnace manhole door according to claim 1, characterized in that: A spring hinge (4) is fixedly mounted on the surface of the door frame body (2); a door frame and door cover connecting arm (5) is rotatably mounted on the side wall of the spring hinge (4); an inner liner connecting arm (13) is fixedly mounted on the other end of the door frame and door cover connecting arm (5); a rotating latch fixing bolt (12) is connected to the inner thread of the inner liner connecting arm (13); and a rotating latch body (11) is rotatably mounted on the side wall of the rotating latch fixing bolt (12).
4. The device for conveniently disassembling and assembling the inner liner of a furnace manhole door according to claim 2, characterized in that: Two mounting rods (18) are fixedly mounted on the surface of the mounting seat (14), and inserting plates (21) are slidably mounted on the side walls of the two mounting rods (18). A plurality of card slots (15) are evenly formed on the side walls of the handle body (10), and the size of the card slots (15) is adapted to the size of the inserting plates (21).
5. The device for conveniently disassembling and assembling the inner liner of a furnace manhole door according to claim 4, characterized in that: A circular block (19) is fixedly mounted on the upper end of the mounting rod (18), a spring body (20) is sleeved on the side wall of the mounting rod (18), and two ends of the spring body (20) are fixedly connected to the circular block (19) and the inserting plate (21), respectively.
6. The device for conveniently disassembling and assembling the inner liner of a furnace manhole door according to claim 2, characterized in that: The interior of the mounting seat (14) is slidably connected to a slide bar (16), and the other end of the slide bar (16) is fixedly connected to a support block (17), and the support block (17) is a "U"-shaped structure.