High-temperature furnace door panel sealing device

Abstract

The present invention discloses a high-temperature furnace door panel sealing device, which relates to the technical field of door panel sealing. It includes an installation shell, a visual window is fixedly connected to the top side wall of the installation shell, a furnace opening is provided at the bottom of the installation shell, and further includes an efficient sealing mechanism for performing lateral uniform pressing and sealing when closing the furnace opening, and a guiding and assisting mechanism for assisting guiding and limiting fixation during the process of opening and closing the furnace opening. Through the setting of the efficient sealing mechanism, two groups of horizontal shafts rotate and move to drive two groups of screws to squeeze the door panel body for sealing. The two groups of screws are equidistantly distributed, so that the door panel body is uniformly stressed, and the pressure applied to the sealing ring is also uniform and consistent. Moreover, the direction of the force applied by each group of screws is also the same, making the force direction of the sealing ring always the same. Compared with the traditional door panel when closing the door, where the sealing ring is unevenly stressed and there is secondary extrusion, the pressure environment of the sealing ring in this device is relatively simple, which is beneficial to increasing its service life.

Description

Technical Field

[0001] The present invention relates to the technical field of door panel sealing, and particularly to a sealing device for the door panel of a high-temperature furnace. Background Art

[0002] A sealing device for the door panel of a high-temperature furnace refers to a device used at the door panel of a high-temperature furnace to ensure that the high-temperature and high-pressure environment inside the furnace is maintained, while preventing the leakage of harmful gases or heat, thereby ensuring the quality of products and the control of process parameters.

[0003] In the prior art, the sealing door of a high-temperature furnace is usually set as a rotating furnace door connected unilaterally. When the furnace door is closed, the force on the sealing member on the door is not uniform. Usually, the position closest to the connection of the furnace door is the first to receive the extrusion force. As the furnace door closes, the position of the sealing member far from the connection gradually receives force. When the furnace door is completely closed, the pressure on the sealing member returns to equilibrium. However, at this time, the edge of the sealing member goes from receiving a large extrusion force to a decreasing force, which is equivalent to two forces. Therefore, its force environment is relatively complex compared to the rest of the part and is most likely to be damaged and aged, thereby reducing its overall service life. In addition, when the furnace door is closed, the rotating connecting member may become loose, which is likely to cause the furnace door to close stuck and generate gaps, thus affecting its sealing performance.

[0004] In addition, the current furnace door rotating member is more likely to be damaged than the furnace door after multiple rotations. When the rotating member fails and needs to be repaired and replaced, since the furnace opening of the high-temperature furnace cannot be opened for work, it is necessary to first turn off the furnace fire, stop processing products, and wait until the rotating member is replaced before processing, which affects the production efficiency of products.

[0005] In view of this, the present invention proposes a sealing device for the door panel of a high-temperature furnace to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0006] To solve the above technical problems, the present invention provides a high-temperature furnace door panel sealing device that can increase the service life of the sealing ring; can avoid the situation of jamming between the bottom of the door panel body and the screw; and can facilitate the maintenance and replacement of the cylinder while the high-temperature furnace is working, so as to solve the corresponding technical problems proposed in the above background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a high-temperature furnace door panel sealing device, including an installation shell, a visual window is fixedly connected to the top side wall of the installation shell, a furnace opening is provided at the bottom of the installation shell, and further includes: an efficient sealing mechanism for performing horizontal uniform pressing and sealing when closing the furnace opening; a guiding and assisting mechanism for assisting guiding and limiting fixation during the process of opening and closing the furnace opening; a two-gear locking mechanism for switching to a manual locking device during maintenance and replacement.

[0008] Preferably, the high-efficiency sealing mechanism includes an electric push rod fixedly connected to the top of the installation shell. The output end of the electric push rod is fixedly connected to a top plate. On both sides of the bottom of the top plate, a pair of connecting rods are fixedly connected. The outer walls of the pair of connecting rods all slidably penetrate through the top of the installation shell. Chains are fixedly connected to the bottoms of the connecting rods. A door panel body is fixedly connected to the bottoms of the pair of connecting rods together. A sealing ring is detachably connected to the side of the door panel body close to the furnace opening.

[0009] Preferably, the high-efficiency sealing mechanism further includes a pair of horizontal shafts rotatably connected to the bottom of the installation shell. On the side where the pair of horizontal shafts are close to each other, a plurality of bumps are equidistantly fixedly connected. Screws are threadedly connected to the inner walls of the plurality of bumps. The heads of the plurality of screws are all arranged towards the direction of the door panel body.

[0010] Preferably, the high-efficiency sealing mechanism further includes a pair of U-shaped frames fixedly connected to the outer wall of the bottom of the installation shell. Cylinders are rotatably connected to the inner walls of the pair of U-shaped frames. First cams are rotatably connected to the side of the pair of cylinders close to the horizontal shaft. The centers of the first cams are fixedly connected to the ends of the horizontal shaft.

[0011] Preferably, the guiding and assisting mechanism includes a pair of telescopic blocks slidably connected to the inner wall of the bottom of the door panel body. On the side of the pair of telescopic blocks close to the high-efficiency sealing mechanism, a pair of spiral springs are fixedly connected. The ends of the pair of spiral springs far from the telescopic blocks are all fixedly connected to the inner wall of the door panel body.

[0012] Preferably, the guiding and assisting mechanism further includes guiding plates fixedly connected to the sides of the telescopic blocks far from the door panel body. Right-angle chutes are opened on both sides of the bottom of the installation shell. The outer walls of the guiding plates are all slidably connected in the right-angle chutes. Arc-edge clamping blocks are abutted against the outside of the guiding plates. The pair of arc-edge clamping blocks are all slidably connected in the right-angle chutes. Grooves are opened on the sides where the arc-edge clamping blocks are close to each other.

[0013] Preferably, the two-gear locking mechanism includes a pair of fixed blocks. The fixed blocks are fixedly connected to the side of the outer wall of the installation shell far from the first cam. Horizontal chutes are opened in the middle of the pair of fixed blocks. Lock bodies are slidably connected in the pair of horizontal chutes. Rotating rods are rotatably connected to the middle of the pair of lock bodies. U-shaped lock buckles are fixedly connected to the sides of the lock bodies far from the rotating rods. Rubber lock hooks are clamped on the outer walls of the pair of U-shaped lock buckles. Second cams are fixedly connected to the sides of the pair of rubber lock hooks close to the installation shell. The centers of the pair of second cams are fixedly connected to the side of the horizontal shaft far from the first cam.

[0014] Preferably, the dual-speed locking mechanism also includes a pair of gear levers slidably engaged with the inner wall of the fixed block, the tops of the two pairs of gear levers are fixedly connected with anti-slip ropes, the sides of the two pairs of anti-slip ropes away from the gear levers are fixedly connected to the top of the fixed block, and the outer walls of the gear levers are engaged with the inner wall of the lock body.

[0015] Preferably, the door panel body is sandwiched between the transverse axis and the furnace opening.

[0016] Preferably, the length of the guide plate is consistent with the thickness of the door panel body.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. When the furnace mouth needs to be closed, through the setting of an efficient sealing mechanism, two groups of horizontal axis rotation and movement are used to drive two groups of screws to squeeze the door panel body for sealing. The two groups of screws are equidistantly distributed, so that the door panel body is evenly stressed, and the pressure applied to the sealing ring is also uniform, and the direction of the force applied by each group of screws is also consistent, so that the force direction of the sealing ring is always consistent. Compared with the traditional door panel, the sealing ring is unevenly stressed and squeezed twice when the door is closed. The device makes the pressure environment of the sealing ring relatively simple, which is beneficial to increase its service life.

[0018] Secondly, with the setting of the chain, the chain can be bent horizontally so that the door panel body can remain basically parallel when the door is closed, which effectively improves the sealing effect. The chain has a simple structure, low cost, and is easy to repair and replace. In addition, pushing the door panel body from the outside of the furnace mouth to the inside can make the chain bend in the opposite direction, and the door panel body can be fixed between the horizontal axis and the arc edge block in cooperation with the arc edge block to prevent the door panel from shaking, which is conducive to the replacement of the sealing ring.

[0019] 2. When the door panel body moves downward, through the setting of the guide auxiliary mechanism, since there are arc chamfers on both sides of the bottom of the guide plate, and the length of the guide plate is consistent with the thickness of the door panel body, even if the door panel body shakes slightly when it moves downward, the screws will first contact the guide plate, and the extrusion guide plate will be guided by the arc chamfer, and the coil spring will be properly compressed to avoid the jamming of the bottom of the door panel body and the screws, thereby ensuring the smooth movement of the door panel body. At the same time, when the door panel body reaches the bottom, the coil spring and the guide plate can also serve as a buffer and support to reduce the collision force between the door panel body and the mounting shell, thereby avoiding the door panel body directly hitting the bottom and causing vibration and loss.

[0020] 3. When the cylinder fails and needs to be repaired or replaced, the double-position locking mechanism is set up, and the second cam is manually rotated to drive the screw to squeeze the door panel body and open and close the furnace mouth. The gear lever is used to move the lock body to the two sides of the fixed block according to the state of the furnace mouth, so as to achieve accurate positioning of the screw, so as to achieve the effect of sealing the furnace mouth even if the cylinder fails and there is no air. It is convenient to repair and replace the cylinder while the high-temperature furnace is working, and there is no need to stop the high-temperature furnace operation for repair, which effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention.

[0022] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention.

[0023] Figure 3 It is a front view planar structure schematic diagram shown in the present invention.

[0024] Figure 4 It is a schematic structural diagram of the horizontal axis connection shown in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the sealing ring connection shown in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the screw connection shown in the present invention.

[0027] Figure 7 It is a structural schematic diagram of the chain connection shown in the present invention.

[0028] Figure 8 The present invention shows Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0029] Figure 9 It is a structural schematic diagram of the spiral spring connection shown in the present invention.

[0030] Figure 10 It is a schematic structural diagram of the U-shaped lock connection shown in the present invention.

[0031] Figure 11 It is a structural schematic diagram of the connection of the gear lever shown in the present invention.

[0032] The numbers in the figure are: 1, installation shell; 2, viewing window; 3, furnace mouth.

[0033] 4. High-efficiency sealing mechanism; 41. Top plate; 42. Connecting rod; 43. Electric push rod; 44. Door panel body; 45. Cylinder; 46. First cam; 47. Horizontal shaft; 48. Screw; 49. Chain; 410. Sealing ring; 411. Protrusion; 412. U-shaped frame.

[0034] 5. Guiding and assisting mechanism; 51. Telescopic block; 52. Arc-edge clamping block; 53. Groove; 54. Helical spring; 55. Right-angled chute; 56. Guide plate.

[0035] 6. Dual-gear locking mechanism; 61. Second cam; 62. Rotating rod; 63. Fixed block; 64. U-shaped lock; 65. Rubber locking hook; 66. Gear lever; 67. Anti-disengagement rope; 68. Horizontal chute; 69. Lock body. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment of the present invention: Please refer to Figures 1 to 11 As shown, a high-temperature furnace door panel sealing device includes an installation shell 1. A visual window 2 is fixedly connected to the top side wall of the installation shell 1. A furnace opening 3 is provided at the bottom of the installation shell 1. It further includes: a high-efficiency sealing mechanism 4 for performing horizontal uniform pressing and sealing when closing the furnace opening 3.

[0038] A guiding and assisting mechanism 5 for assisting in guiding and limiting and fixing during the process of opening and closing the furnace opening 3.

[0039] A dual-gear locking mechanism 6 for switching to a manual locking device during maintenance and replacement.

[0040] The high-efficiency sealing mechanism 4 includes an electric push rod 43 fixedly connected to the top of the installation shell 1. The output end of the electric push rod 43 is fixedly connected to a top plate 41. A pair of connecting rods 42 are fixedly connected to both sides of the bottom of the top plate 41. The outer walls of the pair of connecting rods 42 slidably penetrate through the top of the installation shell 1. Chains 49 are fixedly connected to the bottoms of the pair of connecting rods 42. A door panel body 44 is fixedly connected to the bottoms of the pair of connecting rods 42 together. A sealing ring 410 is detachably connected to one side of the door panel body 44 close to the furnace opening 3.

[0041] The high-efficiency sealing mechanism 4 further includes a pair of horizontal shafts 47 rotatably connected to the bottom of the installation shell 1. A plurality of protrusions 411 are equidistantly fixedly connected to the sides of the pair of horizontal shafts 47 close to each other. Screws 48 are threadedly connected to the inner walls of the plurality of protrusions 411. The heads of the plurality of screws 48 are all arranged towards the direction of the door panel body 44.

[0042] The high-efficiency sealing mechanism 4 further includes a pair of U-shaped frames 412 fixedly connected to the outer wall of the bottom of the installation shell 1. A cylinder 45 is rotatably connected to the inner wall of each of the pair of U-shaped frames 412. A first cam 46 is rotatably connected to the side of each of the pair of cylinders 45 close to the horizontal shaft 47. The centers of the first cams 46 are fixedly connected to the ends of the horizontal shaft 47.

[0043] The door panel body 44 is clamped between the horizontal shaft 47 and the furnace opening 3.

[0044] Wherein: the screw 48 is used to push and press the surface of the door panel body 44, and the chain 49 is used to ensure the lateral movement of the door panel body 44.

[0045] The effects achieved by this embodiment are as follows: In the prior art, usually the connection part close to the furnace door is the first to receive the extrusion force. As the furnace door closes, the position of the sealing member away from the connection part gradually receives force. When the furnace door is completely closed, the pressure on the sealing member resumes balance. However, at this time, the edge of the sealing member is subject to a large extrusion force and then the force decreases, which is equivalent to two forces. Therefore, its force environment is relatively complex compared to the rest, and it is most likely to be damaged and aged, thus reducing its overall service life. Compared with the prior art, through the implementation of this embodiment, the high-efficiency sealing mechanism 4 can adopt the rotational movement of two groups of horizontal shafts 47 to drive two groups of screws 48 to press the door panel body 44 for sealing. The two groups of screws 48 are equidistantly distributed, so that the door panel body 44 is evenly stressed, and the pressure applied to the sealing ring 410 is also uniform and consistent. Moreover, the direction of the force applied by each group of screws 48 is also the same, so that the force direction of the sealing ring 410 is always the same, and the compression environment is relatively simple, which is beneficial to increasing its service life.

[0046] Further embodiment: Please refer to Figure 4 , Figure 6 , Figure 8 , Figure 9 As shown in, the guiding and assisting mechanism 5 includes a pair of telescopic blocks 51 slidably connected to the inner wall of the bottom of the door panel body 44. A spiral spring 54 is fixedly connected to the side of each of the pair of telescopic blocks 51 close to the high-efficiency sealing mechanism 4. One end of each of the pair of spiral springs 54 away from the telescopic block 51 is fixedly connected to the inner wall of the door panel body 44.

[0047] The guiding and assisting mechanism 5 further includes a guiding plate 56 fixedly connected to the side of the telescopic block 51 away from the door panel body 44. Right-angle sliding grooves 55 are opened on both sides of the bottom of the installation shell 1. The outer walls of the guiding plates 56 are slidably connected in the right-angle sliding grooves 55. Arc-edge clamping blocks 52 are abutted against the outside of the guiding plates 56. The pair of arc-edge clamping blocks 52 are both slidably connected in the right-angle sliding grooves 55. Grooves 53 are opened on the sides of the arc-edge clamping blocks 52 close to each other.

[0048] The length of the guiding plate 56 is consistent with the thickness of the door panel body 44.

[0049] The two sides of the bottom of the guide plate 56 are provided with circular chamfers, and the right-angled sliding groove 55 allows the guide plate 56 and the arc-edge clamping block 52 to slide in the same groove.

[0050] The effects achieved by this embodiment are as follows: In the prior art, when the furnace door is closed, the rotating connecting parts become loose, which may cause the furnace door to get stuck when closed, resulting in gaps, thereby affecting its sealing. Compared with the prior art, through the implementation of this embodiment, a guide auxiliary mechanism 5 is provided so that when the door panel body 44 moves downward, even if there is a slight shake, the screw 48 first contacts the guide plate 56, and the extrusion guide plate 56 is guided by the arc chamfer, and is appropriately compressed with the coil spring 54 to avoid the jamming of the bottom of the door panel body 44 and the screw 48.

[0051] For further examples, please refer to Figure 4 , Figure 10 , Figure 11 As shown, the dual-speed locking mechanism 6 includes a pair of fixed blocks 63, which are fixedly connected to the side of the outer wall of the mounting shell 1 away from the first cam 46, a horizontal sliding groove 68 is provided in the middle of the pair of fixed blocks 63, a lock body 69 is slidably connected in the pair of horizontal sliding grooves 68, a pair of lock bodies 69 are rotatably connected to the middle of the pair of lock bodies 69, a U-shaped lock buckle 64 is fixedly connected to the side of the lock body 69 away from the rotating rod 62, a pair of U-shaped lock buckles 64 are clamped with rubber lock hooks 65 on the outer walls, a pair of rubber lock hooks 65 are fixedly connected to the second cam 61 on the side close to the mounting shell 1, and the center of the pair of second cams 61 is fixedly connected to the side of the horizontal axis 47 away from the first cam 46.

[0052] The dual-speed locking mechanism 6 also includes a pair of gear rods 66 slidably engaged with the inner wall of the fixed block 63, the tops of the two pairs of gear rods 66 are fixedly connected with anti-slip ropes 67, the sides of the two pairs of anti-slip ropes 67 away from the gear rods 66 are fixedly connected to the top of the fixed block 63, and the outer walls of the gear rods 66 are engaged with the inner wall of the lock body 69.

[0053] The rubber lock hook 65 is provided with a certain adaptive space to ensure that the U-shaped lock buckle 64 can still be effectively engaged after displacement.

[0054] The effects achieved by this embodiment are as follows: In the prior art, when the rotating part fails and needs to be repaired and replaced, the furnace fire needs to be turned off first, the product processing is stopped, and the processing can only be carried out after the rotating part is replaced, which affects the production efficiency of the product. Compared with the prior art, through the implementation of this embodiment, a two-gear locking mechanism 6 is set up to manually rotate the second cam 61 to drive the screw 48 to squeeze the door panel body 44, open and close the furnace opening 3, and use the gear lever 66 to move the lock body 69 to either side of the fixed block 63 for clamping according to the state of the furnace opening 3, so as to achieve the accurate positioning of the screw 48, thereby achieving the effect of sealing the furnace opening 3 even when the cylinder 45 fails and loses air.

[0055] The complete usage steps and working principle of the above embodiment are as follows: In the initial state: The convex block 411 and the screw 48 are in a horizontal state and do not contact the door panel body 44. The door panel body 44 is located at the furnace opening 3. The helical spring 54 is in a compressed state, and the arc-edge block 52 is separated from the guide plate 56.

[0056] When in use, when the furnace opening 3 needs to be opened, the electric push rod 43 can be started through an external control system to push the top plate 41 upward. The connecting rod 42 and the chain 49 are synchronously stretched upward through the top plate 41, so that the cross shaft 47 moves upward from the initial state, that is, from the furnace opening 3 to the viewing window 2, to open the furnace opening 3. When the furnace opening 3 needs to be closed, the electric push rod 43 is retracted to push the connecting rod 42 downward. Under the action of the self-gravity of the door panel body 44, it moves vertically downward until the sealing ring 410 on the door panel body 44 reaches the periphery of the furnace opening 3. Then, a pair of cylinders 45 are started. The output ends of the cylinders 45 push the edge of the first cam 46 in the same direction. Since both sides of the cross shaft 47 are rotationally limited to the inner wall of the installation shell 1, and the two sets of convex blocks 411 are arranged on the cross shaft 47 on the side close to each other, when the edge of the first cam 46 is pushed, the cross shaft 47 can rotate a short distance, so that the convex blocks 411 and the screws 48 on its outer wall both rotate toward the side of the door panel body 44. Moreover, since the heads of the screws 48 are all arranged toward the door panel body 44, the outer wall of the door panel body 44 is abutted and squeezed by the heads of the two sets of screws 48, so that the door panel body 44 pushes the sealing ring 410 to squeeze toward the furnace opening 3 to achieve the sealing effect. Through the setting of the chain 49, when the door panel body 44 moves, the chain 49 can be bent. Therefore, the door panel body 44 and the sealing ring 410 are basically parallel during movement, and the two sets of screws 48 are evenly distributed. The extrusion stress applied to the outer wall of the door panel body 44 is uniform and consistent, and the direction of each force is also the same, so that the pressure environment received by the sealing ring 410 is single. Compared with the current rotation furnace door with single-side connection, the sealing method of the present invention helps to improve the service life of the sealing ring 410.

[0057] Please refer to the above working process Figures 1 to 7 .

[0058] Furthermore, when the door panel body 44 is pulled up and down by the connecting rod 42, since the door panel body 44 is clamped between the horizontal axis 47 and the furnace opening 3, under the influence of the vibration generated by the chain 49 and the high-temperature furnace operation, the door panel body 44 may shake slightly left and right, resulting in the bottom of the door panel body 44 getting stuck with the screw 48 during the downward movement, affecting the sealing of the furnace opening 3. Therefore, through the guide plate 56 provided at the bottom of the telescopic block 51, on the one hand, arc chamfers are provided on both sides of the bottom of the guide plate 56, and on the other hand, the length of the guide plate 56 is consistent with the thickness of the door panel body 44. When the door panel body 44 moves downward, even if it shakes slightly, the screw 48 first contacts the guide plate 56, and the guide plate 56 is extruded and guided through the arc chamfer, and the spiral spring 54 is appropriately compressed to avoid the situation of the bottom of the door panel body 44 getting stuck with the screw 48 and ensure the smooth movement of the door panel body 44. In addition, when the door panel body 44 moves downward to reach the bottom position of the mounting shell 1, it can also be buffered and supported by the spiral spring 54 and the guide plate 56 to reduce the collision force between the door panel body 44 and the mounting shell 1. Then, when the horizontal axis 47 rotates to make the screw 48 press the door panel body 44, at this time, the guide plate 56 can slide and guide in the right-angle chute 55 to ensure that the door panel body 44 does not shift horizontally. Then, when the sealing ring 410 ages and needs to be replaced, the screw 48 can be kept in a state of not abutting against the door panel body 44. Then, the staff can pass through the furnace opening 3 by hand and push the arc-edge clamping blocks 52 on both sides towards the direction of the guide plate 56 respectively, so that the arc-edge clamping blocks 52 abut against the guide plate 56, so that the door panel body 44 is fixed between the horizontal axis 47 and the arc-edge clamping blocks 52. At this time, when replacing the sealing ring 410, the door panel body 44 can be prevented from shaking, improving the replacement efficiency.

[0059] Please refer to the above working process Figure 4 、 Figure 6 、 Figure 8 、 Figure 9 。

[0060] Furthermore, when the cylinder 45 malfunctions and needs to be repaired or replaced, the furnace mouth 3 can be closed through the manual locking device on the side away from the cylinder 45. Through the arrangement of a pair of gear rods 66, the lock body 69 can be moved to be clamped on both sides of the fixed block 63. When the furnace mouth 3 needs to be sealed, manually push the second cam 61 to rotate, so that the head of the screw 48 presses the door panel body 44. Similarly, perform the above closing operation. At this time, the edge of the second cam 61 drives the rubber lock hook 65 to undergo a short-distance displacement. The staff can slide the lock body 69 in the direction away from the second cam 61. After using the gear rod 66 to clamp and fix the lock body 69, then pull the rotating rod 62 to loosen the U-shaped lock catch 64 and re-hook it on the rubber lock hook 65, and then press the rotating rod 62 to reset to manually lock the current position. Similarly, the gear can be changed to enable the screw 48 to be locked in a state where it does not contact the door panel body 44, realizing the accurate positioning of the screw 48 and facilitating the repair and replacement of the cylinder 45.

[0061] Please refer to the above working process Figure 4 , Figure 10 , Figure 11 .

[0062] The circuits and controls involved in the present invention are all prior arts and will not be elaborated herein.

[0063] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature furnace door panel sealing device, comprising a mounting shell (1), characterized in that: The top side wall of the installation shell (1) is fixedly connected with a viewing window (2), and the bottom of the installation shell (1) is provided with a furnace opening (3), and further comprises: a high-efficiency sealing mechanism (4) for performing uniform lateral pushing and sealing when closing the furnace opening (3); a guide auxiliary mechanism (5) for assisting in guiding and limiting fixation during the process of opening and closing the furnace opening (3); and a dual-position locking mechanism (6) for switching a manual locking device during maintenance and replacement; The high-efficiency sealing mechanism (4) comprises an electric push rod (43) fixedly connected to the top of the mounting shell (1), the output end of the electric push rod (43) is fixedly connected to the top plate (41), the bottom of the top plate (41) is fixedly connected to a pair of connecting rods (42) on both sides, the outer walls of the pair of connecting rods (42) are slidably passed through the top of the mounting shell (1), the bottoms of the connecting rods (42) are fixedly connected to a chain (49), the bottoms of the pair of connecting rods (42) are commonly fixedly connected to a door panel body (44), and the door panel body (44) is detachably connected to a sealing ring (410) on one side close to the furnace opening (3); The guide auxiliary mechanism (5) comprises a pair of telescopic blocks (51) slidably connected to the inner wall of the bottom of the door panel body (44); the side of the pair of telescopic blocks (51) close to the high-efficiency sealing mechanism (4) is fixedly connected to a coil spring (54); and the ends of the pair of coil springs (54) away from the telescopic blocks (51) are fixedly connected to the inner wall of the door panel body (44); The guide auxiliary mechanism (5) also includes a guide plate (56) fixedly connected to the telescopic block (51) away from the door panel body (44), right-angled grooves (55) are provided on both sides of the bottom of the mounting shell (1), the outer wall of the guide plate (56) is slidably connected in the right-angled groove (55), the outer side of the guide plate (56) is abutted with an arc-edge block (52), a pair of the arc-edge blocks (52) are slidably connected in the right-angled groove (55), and the arc-edge blocks (52) are provided with grooves (53) on the sides close to each other.

2. The high temperature furnace door panel sealing device according to claim 1, characterized in that: The high-efficiency sealing mechanism (4) also includes a pair of transverse axes (47) rotatably connected to the bottom of the mounting shell (1), and a plurality of protrusions (411) are fixedly connected at equal distances on the sides of the pair of transverse axes (47) close to each other, and the inner walls of the plurality of protrusions (411) are threadedly connected with screws (48), and the heads of the plurality of screws (48) are arranged in the direction of the door panel body (44).

3. The high temperature furnace door panel sealing device according to claim 2, characterized in that: The high-efficiency sealing mechanism (4) further comprises a pair of U-shaped frames (412) fixedly connected to the outer wall of the bottom of the mounting shell (1); the inner walls of the pair of U-shaped frames (412) are rotatably connected to cylinders (45); the sides of the pair of cylinders (45) close to the transverse axis (47) are rotatably connected to first cams (46); the centers of the first cams (46) are fixedly connected to the ends of the transverse axis (47).

4. The high temperature furnace door panel sealing device according to claim 3, characterized in that: The dual-gear locking mechanism (6) comprises a pair of fixed blocks (63), the fixed blocks (63) being fixedly connected to a side of an outer wall of the mounting shell (1) away from the first cam (46), a pair of fixed blocks (63) having a transverse sliding groove (68) in the middle, a lock body (69) being slidably connected in the pair of transverse sliding grooves (68), a pair of lock bodies (69) having a rotating rod (62) in the middle, a U-shaped lock buckle (64) being fixedly connected to a side of the lock body (69) away from the rotating rod (62), a pair of rubber lock hooks (65) being clamped on the outer walls of the pair of U-shaped lock buckles (64), a pair of rubber lock hooks (65) being fixedly connected to a second cam (61) on a side close to the mounting shell (1), and a pair of second cams (61) having their centers fixedly connected to a side of the transverse axis (47) away from the first cam (46).

5. The high temperature furnace door panel sealing device according to claim 4, characterized in that: The dual-shift locking mechanism (6) further comprises a pair of shift levers (66) slidably engaged with the inner wall of the fixed block (63); the tops of the two pairs of shift levers (66) are fixedly connected with anti-drop ropes (67); the sides of the two pairs of anti-drop ropes (67) away from the shift levers (66) are fixedly connected to the top of the fixed block (63); and the outer walls of the shift levers (66) are engaged with the inner wall of the lock body (69).

6. The high temperature furnace door panel sealing device according to claim 1, characterized in that: The door panel body (44) is sandwiched between the transverse axis (47) and the furnace opening (3).

7. The high temperature furnace door panel sealing device according to claim 5, characterized in that: The length of the guide plate (56) is consistent with the thickness of the door panel body (44).

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