A furnace door with a sealing structure

Abstract

This utility model discloses a furnace door with a sealing structure, relating to the field of furnace door technology, and applied to a top furnace chamber. A furnace door body is rotatably connected to one side of the top furnace chamber via a hinge, and a sealing gasket abuts against one side of the furnace door body. This furnace door with a sealing structure works by pulling the handle body, causing a rectangular groove to engage with a rectangular block at the end of a connecting shaft. Rotating the handle body then rotates the connecting shaft, which in turn drives a bevel gear a at one end to mesh with multiple sets of bevel gears b. This, in turn, causes the bevel gears b and their connecting rods to rotate. The multiple connecting rods then drive multiple sets of cams to rotate synchronously, thereby pushing a push plate on one side to move. The push plate pulls a telescopic rod to move, extending a tension spring a. As the push plate moves, it pushes the sealing gasket on one side to move entirely away from the furnace door body, thus removing the sealing gasket.

Description

Technical Field

[0001] This utility model relates to the field of furnace door technology, specifically a furnace door with a sealing structure. Background Technology

[0002] The top furnace door is typically welded from steel plates, possessing sufficient strength and rigidity to withstand high temperatures and mechanical forces. It prevents air from entering the carbonization chamber during coking, avoiding coke combustion and gas leakage, ensuring the normal operation of the coking process, and also contributing to improved coke oven thermal efficiency and gas quality.

[0003] When the top furnace chamber is in operation, one side of the opening is sealed through the furnace door. To improve the sealing effect, a set of rubber gaskets is usually installed on one side of the furnace door. When the furnace door is closed, the rubber gaskets will be tightly attached to the top furnace chamber, thus preventing the internal gas from flowing out. However, since the rubber gaskets are fixed to the slots on the side of the furnace door by a snap-fit ​​method, they will become stuck to the slots after long-term use and are difficult to remove. When it is necessary to remove and replace the aged sealing gaskets, a pry bar is required to separate the rubber gaskets from the slots, which is complicated and cumbersome. Furthermore, the rubber gaskets will harden after aging. At this time, when using a pry bar to pry the rubber gaskets, they will break. Therefore, it is necessary to pry the rubber gaskets on one side of the furnace door multiple times to remove them. Utility Model Content

[0004] The purpose of this invention is to provide a furnace door with a sealing structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a furnace door with a sealing structure, applied to the top furnace chamber, wherein a furnace door body is rotatably connected to one side of the top furnace chamber via a hinge, a sealing gasket is abutted on one side of the furnace door body, a push plate is provided on one side of the sealing gasket, the outer side of the push plate is slidably connected to the furnace door body, multiple sets of cams are provided on one side of the push plate, a connecting rod is welded and fixed on one side of each set of cams, the outer side of the connecting rod is movably connected to the furnace door body via a bearing, a transmission mechanism is provided at one end of the connecting rod, and a telescopic mechanism is provided on one side of the push plate.

[0006] Specifically, the transmission mechanism can drive multiple sets of connecting rods and cams to rotate simultaneously, thereby pushing the push plate to move and pushing out the sealing gasket on one side.

[0007] Preferably, the sealing gasket has grooves on both sides, and protrusions are engaged inside the grooves, with one side of the protrusions fixed to the furnace door body.

[0008] Specifically, the protruding head is spherical in shape, which can easily engage with the grooves on both sides of the sealing gasket.

[0009] Preferably, the telescopic mechanism includes a telescopic rod fixedly connected to one side of the push plate, and one end of the telescopic rod is fixedly connected to the furnace door body.

[0010] Preferably, a tension spring a is sleeved on the outer side of the telescopic rod, one end of the tension spring a is fixedly connected to the furnace door body, and the other end of the tension spring a is fixedly connected to the push plate.

[0011] Specifically, the telescopic rod can maintain the stability of the push plate during movement, and the tension spring a can pull the push plate to reset.

[0012] Preferably, the transmission mechanism includes a connecting shaft that is movably connected to the furnace door body via a bearing, and a bevel gear a is fixedly connected to one end of the connecting shaft.

[0013] Preferably, the outer side of the bevel gear a is meshed with multiple sets of bevel gears b, and one side of each set of bevel gears b is fixedly connected to the connecting rod, and the other end of the connecting shaft is provided with a handle locking mechanism.

[0014] Preferably, the handle engaging mechanism includes a handle body that is sleeved with the end of the connecting shaft, a rectangular block is slidably connected inside the handle body, and a rectangular groove matching the rectangular block is opened at one end of the handle body.

[0015] Preferably, a circular groove is connected to one side of the rectangular groove, the circular groove is opened inside the handle body, and a reset mechanism is provided on one side of the rectangular block.

[0016] Preferably, the reset mechanism includes a rotating block a rotatably connected to a rectangular block via a rotating shaft, and a tension spring b is fixedly connected to one side of the rotating block a.

[0017] Preferably, one end of the tension spring b is fixedly connected to a rotating block b, and one side of the rotating block b is movably connected to the handle body via a rotating shaft.

[0018] Specifically, the rotatable rotating block a and rotating block b ensure that rotating block b does not affect tension spring b when it is idling.

[0019] Compared with existing technologies, the advantages of this furnace door with a sealing structure are as follows: When removing the internal rubber gasket, pulling the handle body causes the rectangular groove to engage with the rectangular block at the end of the connecting shaft. Then, rotating the handle body causes the connecting shaft to rotate, which in turn drives one end of the bevel gear a to mesh with multiple sets of bevel gears b, thereby causing bevel gear b and its connecting rod on one side to rotate. The multiple sets of connecting rods drive multiple sets of cams to rotate synchronously, thereby pushing the push plate on one side to move. The push plate pulls the telescopic rod to move and causes the tension spring a to extend. When the push plate moves, it pushes the sealing gasket on one side to move as a whole, thus moving it away from one side of the furnace door body, completing the removal of the sealing gasket. In this way, the sealing gasket on one side of the furnace door can be easily removed and replaced through the above operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional view of the furnace door of this utility model;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the sealing gasket of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the telescopic rod of this utility model;

[0024] Figure 5 This is a three-dimensional cross-sectional view of the handle of this utility model;

[0025] Figure 6 This is an enlarged schematic diagram of A of this utility model.

[0026] In the diagram: 1. Top furnace chamber; 2. Furnace door body; 3. Sealing gasket; 4. Push plate; 5. Cam; 6. Connecting rod; 7. Telescopic rod; 8. Tension spring a; 9. Connecting shaft; 10. Bevel gear a; 11. Bevel gear b; 12. Protrusion; 13. Handle body; 14. Rectangular block; 15. Rectangular groove; 16. Circular groove; 17. Rotating block a; 18. Tension spring b; 19. Rotating block b. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6This utility model provides a technical solution: a furnace door with a sealing structure, applied to the top furnace chamber 1. The top furnace chamber 1 is rotatably connected to the furnace door body 2 via a hinge on one side. A sealing gasket 3 is abutted on one side of the furnace door body 2. A push plate 4 is provided on one side of the sealing gasket 3. The outer side of the push plate 4 is slidably connected to the furnace door body 2. Multiple sets of cams 5 are provided on one side of the push plate 4. A connecting rod 6 is welded and fixed on one side of each set of cams 5. The outer side of the connecting rod 6 is movably connected to the furnace door body 2 via a bearing. A transmission mechanism is provided at one end of the connecting rod 6. A telescopic mechanism is provided on one side of the push plate 4.

[0029] Please see Figures 2-4 The sealing gasket 3 has grooves on both sides, and a protrusion 12 is engaged inside the groove. One side of the protrusion 12 is fixed to the furnace door body 2, and the protrusion 12 and the sealing gasket 3 form an engaging structure. The telescopic mechanism includes a telescopic rod 7 fixedly connected to one side of the push plate 4. One end of the telescopic rod 7 is fixedly connected to the furnace door body 2. A tension spring a8 is sleeved on the outside of the telescopic rod 7. One end of the tension spring a8 is fixedly connected to the furnace door body 2, and the other end of the tension spring a8 is fixedly connected to the push plate 4. The transmission mechanism includes a connecting shaft 9 movably connected to the furnace door body 2 through a bearing. One end of the connecting shaft 9 is fixedly connected to a bevel gear a10. Multiple sets of bevel gears b11 are meshed on the outside of the bevel gear a10, and one side of each set of bevel gears b11 is fixedly connected to the connecting rod 6. The other end of the connecting shaft 9 is provided with a handle engaging mechanism. The bevel gears b11 and bevel gears a10 form a meshing transmission structure.

[0030] Please see Figure 2 , Figure 3 and Figure 5 The handle engaging mechanism includes a handle body 13 that is sleeved with the end of the connecting shaft 9. A rectangular block 14 is slidably connected inside the handle body 13. A rectangular groove 15 matching the rectangular block 14 is opened at one end of the handle body 13. A circular groove 16 is connected to one side of the rectangular groove 15. The circular groove 16 is opened inside the handle body 13. A reset mechanism is provided on one side of the rectangular block 14. The reset mechanism includes a rotating block a17 that is rotatably connected to the rectangular block 14 via a rotating shaft. A tension spring b18 is fixedly connected to one side of the rotating block a17. A rotating block b19 is fixedly connected to one end of the tension spring b18. One side of the rotating block b19 is movably connected to the handle body 13 via a rotating shaft. The handle body 13 and the rotating block b19 form a rotating structure through the rotating shaft.

[0031] In practice, when the internal rubber gasket of the furnace door with a sealing structure is removed, the handle body 13 is moved by pulling it, causing the rectangular groove 15 inside the handle body 13 to engage with the rectangular block 14 at the end of the connecting shaft 9. As the handle body 13 moves, it stretches the tension spring b18, which in turn rotates the handle body 13, causing the connecting shaft 9 to rotate. The connecting shaft 9 then drives one end of the bevel gear a10 to mesh with multiple sets of bevel gears b11, thereby causing the bevel gears b11 and their connecting rods 6 to rotate. The multiple connecting rods 6 then drive multiple sets of cams 5 to rotate synchronously. This pushes the push plate 4 on one side to move, which in turn pulls the telescopic rod 7 to move and causes the tension spring a8 to extend. When the push plate 4 moves, it pushes the sealing gasket 3 on one side to move as a whole, thus moving it away from the side of the furnace door body 2 and completing the disassembly of the sealing gasket 3. After disassembly, the handle body 13 can be stopped from turning. At this time, the tension spring a8 will pull the push plate 4 to reset, and then a new sealing gasket 3 can be installed. The sealing gasket 3 is aligned with the mounting groove on one side of the furnace door body 2. When the grooves on both sides of the sealing gasket 3 contact the protrusion 12, the two will engage, completing the installation of the sealing gasket 3.

[0032] When the handle body 13 is completely released, the tension spring b18 will pull the handle body 13 to reset, causing the rectangular groove 15 inside the handle body 13 to disengage from the rectangular block 14. At this time, the rectangular block 14 will be in the circular groove 16. Therefore, when the handle body 13 is rotated, the rectangular block 14 will not move with it, preventing the transmission mechanism from moving the push plate 4 when the handle body 13 is accidentally touched, which would cause the sealing gasket 3 to disengage. In this way, the sealing gasket 3 on the side of the furnace door can be easily disassembled and replaced through the above operation.

[0033] In summary: When using a furnace door with a sealing structure, firstly, after the furnace door body 2 is closed, the sealing gasket 3 on one side of the furnace door body 2 will be tightly pressed against one side of the top furnace chamber 1, completing the seal at the connection between the top furnace chamber 1 and the furnace door body 2, preventing the internal gas from flowing out. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] 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 furnace door with a sealing structure, applied to a top furnace chamber (1), one side of the top furnace chamber (1) being connected with a furnace door body (2) through a hinge rotation, characterized in that, A sealing gasket (3) is abutted on one side of the furnace door body (2). A push plate (4) is provided on one side of the sealing gasket (3). The outer side of the push plate (4) is slidably connected to the furnace door body (2). Multiple sets of cams (5) are provided on one side of the push plate (4). A connecting rod (6) is welded and fixed on one side of each of the multiple sets of cams (5). The outer side of the connecting rod (6) is movably connected to the furnace door body (2) through a bearing. A transmission mechanism is provided at one end of the connecting rod (6). A telescopic mechanism is provided on one side of the push plate (4).

2. A door for a furnace having a seal according to claim 1, wherein: The sealing gasket (3) has grooves on both sides, and a protrusion (12) is engaged inside the groove. One side of the protrusion (12) is fixed to the furnace door body (2).

3. The door with a sealing structure according to claim 1, characterized in that: The telescopic mechanism includes a telescopic rod (7) fixedly connected to one side of the push plate (4), and one end of the telescopic rod (7) is fixedly connected to the furnace door body (2).

4. A door for a furnace having a seal according to claim 3, wherein: A tension spring a (8) is sleeved on the outside of the telescopic rod (7). One end of the tension spring a (8) is fixedly connected to the furnace door body (2), and the other end of the tension spring a (8) is fixedly connected to the push plate (4).

5. A furnace door with a sealing structure according to claim 1, characterized in that: The transmission mechanism includes a connecting shaft (9) that is movably connected to the furnace door body (2) via a bearing, and a bevel gear a (10) is fixedly connected to one end of the connecting shaft (9).

6. A door for a furnace having a seal according to claim 5, wherein: The outer side of the bevel gear a (10) is meshed with multiple sets of bevel gears b (11), and one side of each set of bevel gears b (11) is fixedly connected to the connecting rod (6). The other end of the connecting shaft (9) is provided with a handle locking mechanism.

7. A door for a furnace having a seal according to claim 6, wherein: The handle engagement mechanism includes a handle body (13) that is sleeved with the end of the connecting shaft (9). A rectangular block (14) is slidably connected inside the handle body (13). A rectangular groove (15) matching the rectangular block (14) is opened at one end of the handle body (13).

8. A door for a furnace having a seal according to claim 7, wherein: A circular groove (16) is connected to one side of the rectangular groove (15). The circular groove (16) is opened inside the handle body (13). A reset mechanism is provided on one side of the rectangular block (14).

9. A door for a furnace having a seal according to claim 8, wherein: The reset mechanism includes a rotating block a (17) that is rotatably connected to a rectangular block (14) via a rotating shaft, and a tension spring b (18) is fixedly connected to one side of the rotating block a (17).

10. A door for a furnace having a seal according to claim 9, wherein: One end of the tension spring b (18) is fixedly connected to a rotating block b (19), and one side of the rotating block b (19) is movably connected to the handle body (13) via a rotating shaft.

Images