Sealing device for door plate of high-temperature furnace

Abstract

The invention discloses a high-temperature furnace door plate sealing device, and relates to the technical field of door plate sealing, the high-temperature furnace door plate sealing device comprises a mounting shell, a visual window is fixedly connected to the side wall of the top of the mounting shell, a furnace opening is formed in the bottom of the mounting shell, and the high-temperature furnace door plate sealing device further comprises an efficient sealing mechanism and a guiding auxiliary mechanism, through the arrangement of the efficient sealing mechanism, two groups of transverse shafts rotate and move to drive two groups of screws to extrude the door plate body for sealing, and the two groups of screws are distributed at equal intervals, so that the door plate body is uniformly stressed, and the pressure applied to a sealing ring is uniform and consistent; in addition, the force applying directions of all the sets of screws are consistent, so that the stress directions of the sealing rings are consistent all the time, and compared with non-uniform stress of the sealing rings and secondary extrusion when a traditional door plate is closed, the device enables the stress environment of the sealing rings to be relatively simple, and the service life of the sealing rings is prolonged.

Description

Technical Field

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

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

[0003] In the prior art, the sealed door of a high-temperature furnace is usually configured as a rotating furnace door connected on one side. When the furnace door is closed, the seal on the door is not evenly stressed. Usually, the part close to the furnace door connection is first subjected to squeezing pressure. As the furnace door is closed, the seal gradually becomes stressed away from the connection. When the furnace door is completely closed, the pressure on the seal is restored to balance. However, at this time, the edge of the seal is subjected to a larger squeezing pressure and then reduced stress, which is equivalent to being stressed twice. Therefore, its stress environment is more complicated than that of the rest of the parts, and it is most susceptible to damage and aging, thereby reducing its overall service life. When the furnace door is closed, the rotating connector becomes loose, which may cause the furnace door to close and cause gaps, thereby affecting its sealing.

[0004] In addition, the current furnace door rotating parts are more easily damaged than the furnace door after multiple rotations. When the rotating parts fail and need to be repaired and replaced, since the furnace mouth of the high-temperature furnace cannot be opened for operation, the furnace fire must be turned off first and the product processing must be stopped. Processing can only be resumed after the rotating parts are replaced, which affects the production efficiency of the product.

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

[0006] In order to solve the above technical problems, the present invention provides a high-temperature furnace door panel sealing device which can increase the service life of the sealing ring; can avoid the jamming of the bottom of the door panel body and the screws; and can facilitate the inspection and replacement of the cylinder while the high-temperature furnace is working, so as to solve the corresponding technical problems raised in the above background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a high-temperature furnace door panel sealing device, including a mounting shell, a visual window fixedly connected to the top side wall of the mounting shell, a furnace opening opened at the bottom of the mounting shell, and also including: a high-efficiency sealing mechanism for performing lateral uniform pushing and sealing when closing the furnace opening; a guide auxiliary mechanism for assisting in guiding and limiting fixation during the process of opening and closing the furnace opening; a two-speed locking mechanism for switching the 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 mounting shell, the output end of the electric push rod is fixedly connected to the top plate, a pair of connecting rods are fixedly connected on both sides of the bottom of the top plate, the outer walls of the pair of connecting rods are slid through the top of the mounting shell, the bottoms of the connecting rods are fixedly connected to chains, the bottoms of the pair of connecting rods are commonly fixedly connected to a door panel body, and a sealing ring is detachably connected to the side of the door panel body close to the furnace mouth.

[0009] Preferably, the high-efficiency sealing mechanism also includes a pair of transverse axes rotatably connected to the bottom of the mounting shell, and a plurality of protrusions are equidistantly fixedly connected to one side of the pair of transverse axes close to each other, and the inner walls of the plurality of protrusions are threadedly connected with screws, and the heads of the plurality of screws are arranged toward the direction of the door panel body.

[0010] Preferably, the high-efficiency sealing mechanism also includes a pair of U-shaped frames fixedly connected to the outer wall of the bottom of the mounting shell, the inner walls of the pair of U-shaped frames are rotatably connected to cylinders, and the side of the pair of cylinders close to the horizontal axis is rotatably connected to a first cam, and the center of the first cam is fixedly connected to the end of the horizontal axis.

[0011] Preferably, the guide auxiliary mechanism includes a pair of telescopic blocks slidably connected to the bottom inner wall of the door panel body, a pair of telescopic blocks are fixedly connected to a coil spring on one side close to the high-efficiency sealing mechanism, and a pair of coil springs are fixedly connected to the inner wall of the door panel body at one end away from the telescopic blocks.

[0012] Preferably, the guide auxiliary mechanism also includes a guide plate fixedly connected to the side of the telescopic block away from the door panel body, right-angle slide grooves are provided on both sides of the bottom of the mounting shell, the outer walls of the guide plates are slidably connected in the right-angle slide grooves, the outsides of the guide plates are abutted against arc-edge blocks, a pair of arc-edge blocks are slidably connected in the right-angle slide grooves, and grooves are provided on the sides of the arc-edge blocks close to each other.

[0013] Preferably, the dual-speed locking mechanism includes a pair of fixed blocks, the fixed blocks are fixedly connected to a side of the outer wall of the mounting shell away from the first cam, a pair of the fixed blocks are provided with a horizontal sliding groove in the middle, a pair of lock bodies are slidably connected in the horizontal sliding grooves, a pair of lock bodies are rotatably connected to a rotating rod in the middle, a pair of lock bodies are fixedly connected to a U-shaped lock buckle on a side away from the rotating rod, a pair of U-shaped lock buckles are clamped with rubber lock hooks on the outer walls, a pair of rubber lock hooks are fixedly connected to a second cam on a side close to the mounting shell, and a pair of second cams are fixedly connected at the center of the horizontal axis to a side away 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] Fig. 9 It is a structural schematic diagram of the spiral spring connection shown in the present invention.

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

[0031] Fig.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 axis; 48. Screw; 49. Chain; 410. Sealing ring; 411. Bump; 412. U-shaped frame.

[0034] 5. Guiding auxiliary mechanism; 51. Telescopic block; 52. Arc edge clamping block; 53. Groove; 54. Helical spring; 55. Right-angle slide groove; 56. Guide plate.

[0035] 6. Double-speed locking mechanism; 61. Second cam; 62. Rotating rod; 63. Fixed block; 64. U-shaped lock buckle; 65. Rubber lock hook; 66. Speed ​​lever; 67. Anti-slip rope; 68. Horizontal slide groove; 69. Lock body. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiments of the present invention: Please refer to Figures 1 to 11 As shown, the high-temperature furnace door panel sealing device includes a mounting shell 1, a visual window 2 is fixedly connected to the top side wall of the mounting shell 1, a furnace opening 3 is opened at the bottom of the mounting shell 1, and also includes: a high-efficiency sealing mechanism 4 for performing lateral uniform pushing and sealing when closing the furnace opening 3.

[0038] The guide auxiliary mechanism 5 is used for assisting the guidance and limiting the fixation during the process of opening and closing the furnace mouth 3.

[0039] The dual-position locking mechanism 6 is used to switch the 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 mounting shell 1, the output end of the electric push rod 43 is fixedly connected to the top plate 41, and a pair of connecting rods 42 are fixedly connected on both sides of the bottom of the top plate 41. The outer walls of the pair of connecting rods 42 slide through the top of the mounting shell 1, and the bottoms of the connecting rods 42 are fixedly connected to the chains 49. The bottoms of the pair of connecting rods 42 are commonly fixedly connected to the door panel body 44, and the side of the door panel body 44 close to the furnace mouth 3 is detachably connected to a sealing ring 410.

[0041] 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 equidistantly fixedly connected to one side 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 toward the direction of the door panel body 44.

[0042] The high-efficiency sealing mechanism 4 also includes 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 the cylinders 45, and the side of the pair of cylinders 45 close to the horizontal axis 47 is rotatably connected to the first cam 46, and the center of the first cam 46 is fixedly connected to the end of the horizontal axis 47.

[0043] The door panel body 44 is sandwiched between the transverse axis 47 and the furnace opening 3 .

[0044] The screw 48 is used to push and squeeze 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, the part close to the furnace door connection is usually the first to be subjected to the squeezing force. As the furnace door is closed, the position of the seal away from the connection is gradually subjected to force. When the furnace door is completely closed, the pressure on the seal is restored to balance. However, at this time, the edge of the seal changes from being subjected to a large squeezing force to being subjected to a reduced force, which is equivalent to being subjected to force twice. Therefore, its force environment is more complicated than that of the rest of the parts, and it is most susceptible to damage and aging, thereby reducing its overall service life. Compared with the prior art, through the implementation of this embodiment, an efficient sealing mechanism 4 is set up, which can use two groups of horizontal axes 47 to rotate and move, driving two groups of screws 48 to squeeze the door panel body 44 for sealing. The two groups of screws 48 are equidistantly distributed, so that the door panel body 44 is subjected to uniform force, and the pressure applied to the sealing ring 410 is also uniform and consistent, and the direction of the force applied by each group of screws 48 is also consistent, so that the force direction of the sealing ring 410 is always consistent, and the pressure environment is relatively simple, which is conducive to increasing its service life.

[0046] For further examples, please refer to Figure 4 , Figure 6 , Figure 8 , Fig. 9 As shown, the guide auxiliary mechanism 5 includes a pair of telescopic blocks 51 slidably connected to the bottom inner wall of the door panel body 44, and 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 end of the pair of coil springs 54 away from the telescopic blocks 51 is fixedly connected to the inner wall of the door panel body 44.

[0047] The guide auxiliary mechanism 5 also includes a guide plate 56 fixedly connected to the side of the telescopic block 51 away from the door panel body 44, and right-angle slide grooves 55 are provided on both sides of the bottom of the mounting shell 1. The outer walls of the guide plates 56 are slidably connected in the right-angle slide grooves 55, and the outer sides of the guide plates 56 are abutted with arc-edge blocks 52. A pair of arc-edge blocks 52 are slidably connected in the right-angle slide grooves 55, and grooves 53 are provided on the sides of the arc-edge blocks 52 that are close to each other.

[0048] The length of the guide 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 , Fig.10 , Fig.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 a rotating part fails and needs to be repaired or replaced, it is necessary to first turn off the furnace fire and stop processing the product. Processing can only be resumed 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 double-shift locking mechanism 6 is provided to manually rotate the second cam 61 to drive the screw 48 to squeeze the door panel body 44 and open and close the furnace mouth 3. A shift lever 66 is used to move the lock body 69 to the two sides of the fixed block 63 according to the state of opening and closing the furnace mouth 3, so as to achieve accurate positioning of the screw 48, thereby achieving the effect of sealing the furnace mouth 3 even if the cylinder 45 fails and there is no air.

[0055] The complete usage steps and working principles of the above embodiment are as follows: in the initial state: the protrusion 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 mouth 3. The coil spring 54 is in a compressed state, and the arc edge block 52 and the guide plate 56 are in a separated state.

[0056] When in use, when the furnace mouth 3 is to be opened, the electric push rod 43 can be started through the external control system to push the top plate 41 upward, and the connecting rod 42 and the chain 49 are synchronously stretched upward through the top plate 41, so that the horizontal axis 47 moves upward from the initial state, that is, moves from the furnace mouth 3 to the viewing window 2, and the furnace mouth 3 is opened. When the furnace mouth 3 needs to be closed, the electric push rod 43 is retracted to push the connecting rod 42 to move downward, and under the action of the gravity of the door panel body 44 itself, it moves vertically downward until the sealing ring 410 on the door panel body 44 reaches the surrounding position of the furnace mouth 3, and then a pair of cylinders 45 are started, and the output ends of the cylinders 45 push the edge of the first cam 46 in the same direction. Since the rotation limits on both sides of the horizontal axis 47 are located on the inner wall of the mounting shell 1, and the two sets of protrusions 411 are arranged on one side of the horizontal axis 47 close to each other, the edge of the first cam 46 is pushed, which can make the horizontal axis 4 7 rotates a short distance, so that the protrusion 411 on the outer wall and the screw 48 rotate toward one side of the door panel body 44. Since the heads of the screws 48 are arranged in the direction of the door panel body 44, the heads of the two groups of screws 48 abut and squeeze the outer wall of the door panel body 44, so that the door panel body 44 pushes the sealing ring 410 to be squeezed in the direction of the furnace mouth 3 to achieve a sealing effect. By setting the chain 49, the chain 49 can be bent when the door panel body 44 moves. Therefore, the door panel body 44 and the sealing ring 410 are basically parallel and move, and the two groups of screws 48 are equidistantly distributed, the extrusion stress applied to the outer wall of the door panel body 44 is uniform, and the direction of each group of forces is also consistent, so that the pressure environment to which the sealing ring 410 is subjected is single. Compared with the current rotating furnace door connected on one side, 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 mouth 3, the door panel body 44 may slightly shake left and right under the influence of the chain 49 and the vibration generated by the operation of the high-temperature furnace, causing the bottom of the door panel body 44 to get stuck with the screw 48 during the downward movement of the door panel body 44, affecting the sealing of the furnace mouth 3. Therefore, a guide plate 56 is set at the bottom of the telescopic block 51. On the one hand, arc chamfers are set on both sides of the bottom of the guide plate 56. On the other hand, the length of the guide plate 56 is consistent with the thickness of the door panel body 44, so that even if the door panel body 44 shakes slightly when moving downward, the screw 48 first contacts the guide plate 56, and the guide plate 56 is squeezed to guide through the arc chamfer, and the spiral spring 54 is properly compressed to avoid the jamming of the bottom of the door panel body 44 and the screw 48, thereby ensuring that the door panel body 4 4 moves smoothly. In addition, when the door panel body 44 moves downward to 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 the horizontal shaft 47 rotates to make the screw 48 squeeze the door panel body 44. At this time, the guide plate 56 can slide and guide in the right-angle slide groove 55 to ensure that the door panel body 44 does not deviate laterally. Then, when the sealing ring 410 is aged and needs to be replaced, the screw 48 can be kept in a state of not contacting the door panel body 44. Then the staff can pass the furnace mouth 3 by hand and push the arc edge blocks 52 on both sides toward the direction of the guide plate 56 respectively, so that the arc edge blocks 52 are in contact with the guide plate 56, so that the door panel body 44 is fixed between the horizontal shaft 47 and the arc edge blocks 52. At this time, replacing the sealing ring 410 can avoid the shaking of the door panel body 44 and improve the replacement efficiency.

[0059] Please refer to the above working process Figure 4 , Figure 6 , Figure 8 , Fig. 9 .

[0060] Furthermore, when the cylinder 45 fails and needs to be repaired or replaced, the furnace mouth 3 can be closed by a manual locking device away from the side of the cylinder 45. By setting a pair of gear rods 66, the lock body 69 can be moved to the two sides of the fixed block 63 for engagement. When the furnace mouth 3 needs to be sealed, the second cam 61 is manually pushed to rotate so that the head of the screw 48 presses the door panel body 44. The above-mentioned closing operation is performed in the same way. At this time, the edge of the second cam 61 drives the rubber lock hook 65 to move a short distance. The staff can slide the lock body 69 in the direction away from the second cam 61, and use the gear rod 66 to engage and fix the lock body 69, and then pull the rotating rod 62 to release the U-shaped lock buckle 64 and re-hook the rubber lock hook 65. Then, the rotating rod 62 is pressed to reset to manually lock the current position. Similarly, the gear can be changed, so that the screw 48 can be locked in a state of not contacting the door panel body 44, thereby achieving accurate positioning of the screw 48 and facilitating the inspection and replacement of the cylinder 45.

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

[0062] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 to a viewing window (2), and the bottom of the installation shell (1) is provided with a furnace opening (3). The installation shell (1) also includes: a high-efficiency sealing mechanism (4) for performing a uniform lateral push-to-seal 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.

2. The high temperature furnace door panel sealing device according to claim 1, characterized in that: 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), 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 a sealing ring (410) is detachably connected to one side of the door panel body (44) close to the furnace opening (3).

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 transverse shafts (47) rotatably connected to the bottom of the mounting shell (1); a plurality of protrusions (411) are fixedly connected at equal distances to one side of the pair of transverse shafts (47) close to each other; the inner walls of the plurality of protrusions (411) are threadedly connected to screws (48); and the heads of the plurality of screws (48) are arranged toward the door panel body (44).

4. The high temperature furnace door panel sealing device according to claim 3, 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 both rotatably connected to cylinders (45); the sides of the pair of cylinders (45) close to the transverse axis (47) are both rotatably connected to first cams (46); the centers of the first cams (46) are both fixedly connected to the ends of the transverse axis (47).

5. The high temperature furnace door panel sealing device according to claim 2, characterized in that: The guide auxiliary mechanism (5) comprises a pair of telescopic blocks (51) slidably connected to the bottom inner wall of the door panel body (44); one 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 one end of the pair of coil springs (54) away from the telescopic blocks (51) is fixedly connected to the inner wall of the door panel body (44).

6. The high temperature furnace door panel sealing device according to claim 5, characterized in that: The guide auxiliary mechanism (5) further comprises a guide plate (56) fixedly connected to the telescopic block (51) on a side away from the door panel body (44); right-angled sliding grooves (55) are provided on both sides of the bottom of the mounting shell (1); outer walls of the guide plates (56) are slidably connected in the right-angled sliding grooves (55); arc-edge clamping blocks (52) are abutted against the outside of the guide plates (56); a pair of arc-edge clamping blocks (52) are slidably connected in the right-angled sliding grooves (55); and grooves (53) are provided on the sides of the arc-edge clamping blocks (52) close to each other.

7. The high temperature furnace door panel sealing device according to claim 4, 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 transverse sliding groove (68) being provided in the middle of the pair of fixed blocks (63), a lock body (69) being slidably connected in the pair of transverse sliding grooves (68), a rotation rod (62) being rotationally connected in the middle of the pair of lock bodies (69), a U-shaped lock buckle (64) being fixedly connected to a side of the lock body (69) away from the rotation rod (62), a rubber lock hook (65) being clamped on the outer wall of the pair of U-shaped lock buckles (64), a side of the pair of rubber lock hooks (65) close to the mounting shell (1) being fixedly connected to a second cam (61), and a center of the pair of second cams (61) being fixedly connected to a side of the transverse axis (47) away from the first cam (46).

8. The high temperature furnace door panel sealing device according to claim 7, characterized in that: The dual-position locking mechanism (6) further comprises a pair of position levers (66) slidably engaged with the inner wall of the fixed block (63); the tops of the two pairs of position levers (66) are fixedly connected with anti-drop ropes (67); the sides of the two pairs of anti-drop ropes (67) away from the position levers (66) are fixedly connected to the top of the fixed block (63); and the outer walls of the position levers (66) are engaged with the inner wall of the lock body (69).

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

10. The high temperature furnace door panel sealing device according to claim 6, 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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