CN110455093B - Heating furnace and observation door thereof - Google Patents
Heating furnace and observation door thereof Download PDFInfo
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- CN110455093B CN110455093B CN201910784548.2A CN201910784548A CN110455093B CN 110455093 B CN110455093 B CN 110455093B CN 201910784548 A CN201910784548 A CN 201910784548A CN 110455093 B CN110455093 B CN 110455093B
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- door
- guide rod
- movable door
- observation
- fixed support
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Special Wing (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a fire observation door, which comprises a movable door assembled in a fire observation hole of a furnace body, a fixed support fixed on the furnace wall at the same side with the fire observation hole, and a guide rod, wherein one end of the guide rod is provided with a sliding groove, and the other end of the guide rod is hinged with the movable door; the sliding groove extends along the length direction of the guide rod; the fixed support is provided with a connecting end which is embedded in the sliding groove to slide and rotate so as to realize the translation and rotation of the other end of the guide rod. The observation door connects the fixed support and the movable door through a guide rod, and one end of the guide rod, which is provided with a sliding chute, slides and rotates relative to the connecting end of the fixed support, so that the movable door arranged at the other end of the guide rod is driven to translate and rotate; the sliding chute is matched with the sliding hinge of the connecting end to guide the translation and rotation of the guide rod, and the opening and closing of the movable door relative to the observation hole can be flexibly and freely realized by combining the hinge of the guide rod and the movable door. The fire door is simple in structure and avoids clamping stagnation and rod piece overturning. The invention also discloses a heating furnace comprising the observation door.
Description
Technical Field
The invention relates to the field of heating furnaces, in particular to a fire observation door. The invention also relates to a heating furnace comprising the observation door.
Background
When the heating furnace is in operation, whether the working condition in the hearth is normal or not and the conditions of flame and equipment in the furnace need to be observed through the observation door. The heating furnace in the prior art adopts the observation door with a three-connecting-rod structure, the lining mechanism block is connected with the door cover, the connection mode of the three-connecting-rod structure can lead the door cover to be firstly linearly drawn out when being opened, and the lining mechanism block is laterally opened after being completely drawn out from the observation door hole.
The three-connecting-rod structure has high requirement on the parallelism of the shaft, so that the clamping stagnation phenomenon is easy to occur, and the three-connecting-rod structure has a plurality of connecting points, so that the local hinge connecting points are not flexible due to the field environment, and the clamping stagnation reason and the clamping stagnation position are difficult to judge. In addition, the intermediate shaft is not limited from the door opening state to the door closing state, and once the intermediate shaft exceeds the limit position of the three-link structure during overturning, the intermediate shaft needs to be pulled to the corresponding position through manual assistance.
Disclosure of Invention
The invention aims to provide a fire observation door which is simple in structure, few in connecting points, flexible in movement and guiding, and avoids the problems of clamping stagnation and reverse rotation of a connecting rod. It is another object of the present invention to provide a heating furnace including the above-described fire door.
In order to achieve the aim, the invention provides a fire observation door, which comprises a movable door assembled in a fire observation hole of a furnace body, a fixed support fixed on the furnace wall at the same side with the fire observation hole, and a guide rod, wherein one end of the guide rod is provided with a sliding groove, and the other end of the guide rod is hinged with the movable door; the sliding groove extends along the length direction of the guide rod; the fixed support is provided with a connecting end which is embedded into the sliding groove, slides and rotates to realize translation and rotation of the other end of the guide rod.
Preferably, the connecting end comprises a shaft sleeve penetrating through the sliding groove; the diameter of the shaft sleeve and the width of the sliding groove.
Preferably, the fixed mount comprises a mount body extending outwardly perpendicular to the furnace wall; and one end of the support body, which is far away from the furnace wall, is fixedly connected with the two ends of the shaft sleeve through a first nut.
Preferably, the guide rod is hinged with the movable door through a pin shaft.
Preferably, the movable door includes:
the door plate is plate-shaped and used for plugging the outer side of the observation hole;
the handle is fixed on the outer side of the door panel;
a movable door liner detachably connected to the inner side of the door panel for filling the observation hole.
Preferably, a plurality of connection holes through which bolts pass to realize bolt connection are provided on both the peripheral side of the movable door liner and the peripheral side of the door panel.
Preferably, the furnace body further comprises a door frame used for being attached and fixed to the furnace body and a heat insulation block pre-embedded between the door frame and the observation hole.
Preferably, the heat preservation block is in clearance fit with the furnace wall of the furnace body; and the ceramic fiber blanket is filled in the gap between the heat preservation block and the furnace wall and used for heat insulation.
Preferably, the number of the fixed supports and the guide rods is two; the fixed support and the guide rod are arranged at the upper end of the movable door; the other fixed support and the other guide rod are symmetrically arranged at the lower end of the movable door.
A heating furnace comprises a furnace body provided with a fire observation hole and further comprises the fire observation door.
Compared with the prior art, the observation door provided by the invention comprises a movable door, a fixed support and a guide rod, wherein the fixed support and the observation hole are fixed on the furnace wall at the same side of the furnace body, and two ends of the guide rod are respectively connected with the fixed support and the movable door; the one end that the guide arm is connected with fixing support is equipped with the spout, and fixing support's link embedding spout slides and rotates to make the other end of guide arm also with the swing door articulated one end around fixing support translation and rotation.
The observation door realizes the translation and the rotation of the movable door relative to the fixed support through the movement between the connecting end of the fixed support and the sliding groove, the sliding hinge of the sliding groove and the connecting end is matched to have a guiding effect on the translation and the rotation of the guide rod, and the movable door can be flexibly and freely opened and closed relative to the observation hole by combining the hinging of the guide rod and the movable door.
In a word, the observation door has fewer welding parts on one hand and reduces structural deformation; on the other hand, the transmission pair is less, the clamping stagnation occurrence point in the moving process of the movable door is reduced, and the guide rod has a guiding function and is beneficial to the flexible opening and closing of the movable door.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of the assembly of a fire door provided in an embodiment of the invention with respect to a fire hole closed;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the assembly of a fire door provided in accordance with an embodiment of the present invention with the fire door fully open relative to a fire hole;
the movable door comprises a door frame 1, a movable door 2, a door frame bolt 3, a second flat washer 4, a second spring washer 5, a door frame nut 6, a pin shaft 7, a pin shaft washer 8, a guide rod 9, a sliding chute 91, a fixed support 10, a support screw 11, a first flat washer 12, a first spring washer 13, a shaft sleeve nut 14, a shaft sleeve washer 15, a shaft sleeve 16, a ceramic fiber blanket 17, a fire hole 18, a movable door liner 19, a movable door nut 20, a movable door washer 21 and a handle 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, fig. 1 is an assembly schematic view of a fire door provided in an embodiment of the invention when the fire door is closed relative to a fire hole; FIG. 2 is a top view of FIG. 1; figure 3 is a schematic view of the assembly of a fire door provided by an embodiment of the present invention with respect to a fire hole fully opened.
The invention provides a fire observation door, which comprises a movable door 2, a fixed support 10 and a guide rod 9, wherein one end of the guide rod is provided with a sliding groove 91; the fixed support 10 is arranged on the furnace body and is arranged on the furnace wall at the same side with the observation hole 18; the connecting end of the fixed support 10 is embedded into the sliding groove 91 to slide and rotate, so that the other end of the guide rod 9 can translate and rotate relative to the fixed support 10; the other end of the guide rod 9 is hinged with the movable door 2. Wherein, the extending direction of the sliding groove 91 is the same as the length direction of the rod.
The sliding and rotation of the connecting end relative to the sliding groove 91 is equivalent to the sliding and rotation of the sliding groove 91 relative to the connecting end, and this process results in the rotation of the guide rod 9 relative to the fixed support 10 and the change in length of the guide rod 9 between the movable door 2 and the fixed support 10, so that the movable door 2 can translate and rotate relative to the furnace body under the guiding action of the sliding groove 91 and the connecting end, thereby freely and flexibly opening and closing relative to the viewing hole 18.
When the observation door provided by the invention is opened relative to the observation hole 18, the movable door 2 is linearly drawn out from the observation hole 18 and then opened to the side surface of the observation hole 18 in fig. 2 and 3, the movement is smooth and natural, and the possibility of clamping stagnation and reverse overturning is avoided.
The fire door provided by the invention is further explained by combining the drawings and the embodiment.
The connecting end of the observation door provided by the invention comprises a shaft sleeve 16 penetrating in the sliding groove 91, the shaft sleeve 16 is cylindrical, and the diameter of the shaft sleeve 16 is matched with the width of the sliding groove 91 so as to realize the movement of the shaft sleeve 16 along the length direction of the sliding groove 91 and the rotation of the shaft sleeve 16 in the sliding groove 91. In order to make the action of the guide rod 9 more flexible, the two ends of the sliding slot 91 are respectively provided with a round angle for the guide rod 9 to rotate at the limit position of the sliding slot 91, and the diameter of the round angle is equal to that of the shaft sleeve 16.
In the above embodiment, the length of the boss 16 is not smaller than the thickness of the chute 91, and both ends of the boss 16 inserted into the chute 91 exceed both end surfaces of the chute 91. The fixed support 10 further comprises a support body extending outwards perpendicular to the furnace wall, one end of the support body close to the furnace wall is fixed on the furnace wall through a support screw 11, and one end of the support body far away from the furnace wall is fixedly connected with two ends of a shaft sleeve 16 through a shaft sleeve nut 14.
In order to improve the connection strength between the support body and the furnace wall, the support further comprises a first flat washer 12 and a first spring washer 13 which are sleeved on any support screw 11; similarly, a shaft sleeve gasket 15 is sleeved between the shaft sleeve 16 and the shaft sleeve nut 14 to enhance the connection strength of the shaft sleeve 16 and the support body.
The two ends of the shaft sleeve 16 penetrating into the sliding groove 91 are fixedly connected by the support body through two groups of nuts, the diameter of any nut is larger than the width of the sliding groove 91, and when the shaft sleeve 16 translates and rotates relative to the sliding groove 91, the nut positioned on the upper end surface of the sliding groove 91 can only move and rotate along the upper end surface of the sliding groove 91, so that the shaft sleeve 16 is prevented from separating from the lower end of the sliding groove 91; on the contrary, the nut located on the lower end surface of the sliding groove 91 can only move and rotate along the lower end surface of the sliding groove 91 to prevent the shaft sleeve 16 from separating from the sliding groove 91 from the upper end of the sliding groove 91.
Furthermore, one end of the guide rod 9 far away from the fixed support 10 is hinged with the movable door 2 through a pin 7. The pin 7 penetrates through the guide rod 9 along the thickness direction of the guide rod 9 and is connected into the movable door 2, and a pin washer 8 is arranged between the pin 7 and the movable door 2. When the guide rod 9 moves and rotates relative to the fixed support 10, in order to operate the movable door 2 conveniently, the worker can rotate the movable door 2 relative to the guide rod 9 through the pin 7, so that one end of the movable door 2 facing the observation hole 18 always deviates from the worker.
The movable door 2 comprises a door plate, a handle 22 and a movable door liner 19, wherein the door plate is plate-shaped and is used for plugging the outer side of the observation hole 18; the handle 22 is fixed on the outward side of the door panel; a movable door liner 19 is detachably mounted on the inwardly facing side of the door panel.
Obviously, the size of the door panel is larger than that of the observation hole 18 so as to be blocked outside the observation hole 18, and the size of the movable door liner 19 is not larger than that of the observation hole 18 so as to extend into the observation hole 18 to block the observation hole 18; a handle 22 is preferably provided in the middle of the outer side of the door panel for the pulling of the worker.
In addition to the above-described embodiments, the movable door liner 19 and the door panel are provided with a plurality of connecting holes on both the peripheral side thereof, and the observation door connects the movable door liner 19 and the door panel by a plurality of fasteners to replace the movable door liner 19. For example, connection holes are respectively installed on both sides of the handle 22 to install the movable door bolt and the movable door nut 20, and a movable door washer 21 is further provided between any one set of the movable door bolts and the movable door nut 20.
The fastener can be a bolt, in particular a high-temperature-resistant bolt.
When the heating furnace heats different materials, the temperature in the furnace is different, in order to meet the heat preservation and heat insulation requirements of the furnace, the movable door lining 19 with different heat preservation and heat insulation effects is required to be adopted to be stuffed in the observation hole 18, the connection strength between the movable door lining 19 and the door plate is ensured, and the operation safety is improved.
Furthermore, in order to meet the requirements of heat preservation and heat insulation, the furnace body also comprises a door frame 1 which is used for being fixed on one side of the furnace body provided with a viewing hole 18 and a heat preservation block which is arranged between the door frame 1 and the viewing hole 18. The inward side of the door frame 1 is fixedly connected with the furnace wall, the outward side of the door frame 1 is fixedly connected with the door plate of the movable door 2, and the heat-insulating block is embedded in the furnace wall; the doorframe 1 is fixed to the furnace wall by a doorframe bolt 3 and a doorframe nut 6.
The door frame bolts 3 and the door frame nuts 6 can be arranged at four vertex angles of the door frame 1, and in consideration of the fact that the door frame bolts 3 and the door frame nuts 6 are heated more, a second flat washer 4 and a second spring washer 5 are arranged between any one group of door frame bolts 3 and the door frame nuts 6 to prevent the door frame nuts 6 from loosening.
The allowance is left between the heat preservation block and the furnace wall, namely the heat preservation block is in clearance fit with the outer wall of the observation hole 18, and the ceramic fiber blanket 17 for heat insulation can be filled in the clearance. The ceramic fiber blanket 17 is a low thermal conductivity material that effectively isolates high temperature conduction within the fire hole 18.
On the basis of any one of the above embodiments, the observation door provided by the invention comprises two fixed supports 10 and two guide rods 9; one fixed support 10 and one guide rod 9 are arranged at the upper end of the movable door 2, and the other fixed support 10 and the other guide rod 9 are symmetrically arranged at the lower end of the movable door 2. When the worker pulls the movable door 2, the movable door 2 drives the two guide rods 9 to synchronously translate and rotate relative to the two fixed supports 10. Wherein only one end of the guide rod 9 is hinged with the movable door 2, and the other end is connected with the fixed support 10 through the chute 91, thereby not only saving a rod piece, but also changing the connection mode of the rest rod pieces, namely the two ends of the guide rod 9, and obviously reducing the requirement of the parallelism of the two guide rods 9.
The invention also provides a heating furnace which comprises a furnace body, wherein one side of the furnace body is provided with a fire observation hole 18 and a fire observation door fixed on the same side with the fire observation hole 18. Other structures of the heating furnace can refer to the prior art, the structure of the observation door is mainly improved, and the fixed support 10 and the movable door 2 are connected through the guide rod 9, so that the movable door 2 can move horizontally and rotate relative to the observation hole 18 in the furnace body, and the movable door 2 and the observation hole 18 can be flexibly and freely opened and closed.
The heating furnace and the observation door thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A fire door comprises a movable door (2) assembled in a fire hole (18) of a furnace body, and is characterized by also comprising a fixed support (10) fixed on the furnace wall at the same side with the fire hole (18) and a guide rod (9) with one end provided with a sliding groove (91) and the other end hinged with the movable door (2); the sliding groove (91) extends along the length direction of the guide rod (9); the fixed support (10) is provided with a connecting end which is embedded into the sliding groove (91) to slide and rotate so as to realize translation and rotation of the other end of the guide rod (9).
2. The viewing door of claim 1, wherein said attachment end includes a bushing (16) disposed through said chute (91); the diameter of the shaft sleeve (16) is matched with the width of the sliding groove (91).
3. The viewing door according to claim 2, characterized in that said fixed support (10) further comprises a support body extending outwards perpendicular to the furnace wall; one end of the support body, which is far away from the furnace wall, is fixedly connected with two ends of the shaft sleeve (16) through a shaft sleeve nut (14).
4. The viewing door according to claim 3, characterized in that said guide rod (9) is hinged to said movable door (2) by means of a pin (7).
5. A viewing door according to claim 1, characterized in that said movable door (2) comprises:
the door plate is plate-shaped and is used for plugging the outer side of the observation hole (18);
a handle (22) fixed to an outer side of the door panel;
a movable door lining (19) detachably connected to the inner side of the door panel for filling the observation hole (18).
6. The viewing door according to claim 5, characterized in that the peripheral side of the movable door lining (19) and the peripheral side of the door panel are each provided with a plurality of attachment holes for the passage of fasteners for screw-attachment.
7. The observation door of claim 6, further comprising a door frame (1) for attaching and fixing to a furnace body and a heat insulation block pre-embedded between the door frame (1) and the observation hole (18).
8. The fire viewing door of claim 7, wherein the heat retention block is in clearance fit with a wall of the furnace body; and the ceramic fiber blanket (17) is filled in the gap between the heat preservation block and the furnace wall and used for heat insulation.
9. The observation door according to any of claims 1 to 8, characterized in that the number of said fixed seats (10) and said guide rods (9) is two; the fixed support (10) and the guide rod (9) are arranged at the upper end of the movable door (2); the other fixed support (10) and the other guide rod (9) are symmetrically arranged at the lower end of the movable door (2).
10. A heating furnace comprising a furnace body provided with a peep hole (18), characterized by further comprising a peep gate according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910784548.2A CN110455093B (en) | 2019-08-23 | 2019-08-23 | Heating furnace and observation door thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910784548.2A CN110455093B (en) | 2019-08-23 | 2019-08-23 | Heating furnace and observation door thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110455093A CN110455093A (en) | 2019-11-15 |
| CN110455093B true CN110455093B (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910784548.2A Active CN110455093B (en) | 2019-08-23 | 2019-08-23 | Heating furnace and observation door thereof |
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| Country | Link |
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| CN (1) | CN110455093B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201322540Y (en) * | 2008-11-13 | 2009-10-07 | 孙原田 | Two-dimensional flat-rotation combination door plate shaft structure |
| CN202485032U (en) * | 2012-03-20 | 2012-10-10 | 天津固特节能环保科技有限公司 | Side-open airtight energy-saving observation door |
| CN204705195U (en) * | 2015-06-02 | 2015-10-14 | 江苏焱鑫科技股份有限公司 | Energy-saving lens type observation door |
| CN109236079A (en) * | 2017-07-10 | 2019-01-18 | 刘祥 | A kind of hinge slided after rotation before |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110249960A1 (en) * | 2011-01-28 | 2011-10-13 | Poole Ventura, Inc. | Heat Source Door For A Thermal Diffusion Chamber |
| CN208089055U (en) * | 2018-03-26 | 2018-11-13 | 广州五铭江电子科技有限公司 | Door/window localizer |
-
2019
- 2019-08-23 CN CN201910784548.2A patent/CN110455093B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201322540Y (en) * | 2008-11-13 | 2009-10-07 | 孙原田 | Two-dimensional flat-rotation combination door plate shaft structure |
| CN202485032U (en) * | 2012-03-20 | 2012-10-10 | 天津固特节能环保科技有限公司 | Side-open airtight energy-saving observation door |
| CN204705195U (en) * | 2015-06-02 | 2015-10-14 | 江苏焱鑫科技股份有限公司 | Energy-saving lens type observation door |
| CN109236079A (en) * | 2017-07-10 | 2019-01-18 | 刘祥 | A kind of hinge slided after rotation before |
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| Publication number | Publication date |
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| CN110455093A (en) | 2019-11-15 |
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