Hinge device for an industrial furnace access

Abstract

The utility model discloses a hinge device of industrial furnace overhaul opening relates to industrial furnace technical field. The utility model discloses a front connecting rod of installing on the furnace door and the rear connecting rod of installing in the furnace body near the furnace mouth outside area, and the front connecting rod sets up in the furnace door top, and both sides of furnace door middle part are all fixed with the lug side, and the front connecting rod sets up between two lug sides and is connected with the lug side rotation, and the rear connecting rod is fixed in the furnace body top through the furnace wall fixed position, and the rear connecting rod is connected with the furnace wall fixed position rotation, and two front hinge arms are fixed on the front connecting rod, and two rear hinge arms are fixed on the rear connecting rod. The utility model discloses a hinge device of four hinge arms combination, can connect the furnace door and the furnace body, and unilateral double hinge structure ensures that the furnace door can be lifted to a section distance upward, is suitable for the assembly and disassembly process of furnace door, and can horizontally fold and pull open the furnace door, makes the furnace door can realize similar push -pull type's switch, plays the role of saving labor, can reduce personnel investment.

Description

Technical Field

[0001] This utility model belongs to the field of industrial furnace technology, and in particular relates to a hinge device for an inspection port of an industrial furnace. Background Technology

[0002] Most steel metallurgical equipment currently contains various process furnaces, including quenching furnaces, normalizing furnaces, and tempering furnaces. These industrial furnaces often require opening and closing furnace doors for maintenance tasks. As the furnace doors are exposed to high temperatures for extended periods, the maintenance cycle for the furnace doors is greatly shortened, and furnace door maintenance work occurs frequently.

[0003] When dismantling and repairing the furnace door, after removing the bolts between the furnace door and the furnace opening, the furnace door needs to be pulled upwards. Because the furnace door is heavy and the repair platform is narrow, it takes three people to work together to remove the furnace door. Then, a chain hoist is used to pull the furnace door up. At the same time, because the temperature inside the furnace is high, a large amount of heat is ejected from the furnace after the furnace door is removed, which causes great inconvenience and safety hazards to the repair personnel.

[0004] To improve maintenance efficiency and ensure the safe removal of furnace doors, designing hinge devices for maintenance access furnace doors is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this utility model is to provide a hinge device for the inspection port of an industrial furnace. By designing a hinge device with a four-hinged arm combination, the furnace door and the furnace body can be connected. The single-sided double-hinged structure ensures that the furnace door can be lifted up a certain distance, which is suitable for the assembly and disassembly of the furnace door. It can also fold and pull the furnace door open laterally, so that the furnace door can be opened and closed like a push-pull, which saves effort and reduces personnel input.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a hinge device for the inspection port of an industrial furnace, including a front connecting rod installed on the furnace door and a rear connecting rod installed on the furnace body near the outer side of the furnace opening;

[0008] The front connecting rod is set at the top of the furnace door, and there are support ears fixed on both sides of the middle part of the furnace door. The front connecting rod is set between the two support ears and is rotatably connected to the support ears.

[0009] The rear connecting rod is fixed to the top of the furnace body through the furnace wall fixing position, and the rear connecting rod is rotatably connected to the furnace wall fixing position;

[0010] Two front hinge arms are fixed on the front connecting rod, and two rear hinge arms are fixed on the rear connecting rod. The front hinge arm is composed of a set of side plates and a transverse stiffener plate disposed between the two side plates. A pin hole is provided at the end of the side plate away from the front connecting rod.

[0011] The rear hinge arm has the same structural features as the front hinge arm, and the distance between the two side plates of the rear hinge arm is greater than the distance between the two side plates of the front hinge arm.

[0012] The end of the front hinge arm away from the front connecting rod and the end of the rear hinge arm away from the rear connecting rod are connected by a pin hole and a pin rod. The pin hole ends of the two side plates of the front hinge arm are respectively fitted into the inner side of the pin hole ends of the two side plates of the rear hinge arm.

[0013] Furthermore, the furnace wall fixing position includes a bottom beam, which is welded and fixed to the top of the furnace body. A set of inclined lugs is welded and fixed to the top of the bottom beam, and the rear connecting rod passes through and is rotatably installed in the hole of the inclined lugs.

[0014] Furthermore, a reinforcing rib plate is welded and fixed between the two inclined lugs, the bottom edge of the reinforcing rib plate is welded and fixed to the top surface of the bottom beam, and a clearance area is formed between the top edge of the reinforcing rib plate and the rear connecting rod.

[0015] Furthermore, both ends of the front connecting rod and the rear connecting rod are provided with threaded sections, and fastening nuts are provided on the threaded sections. Washers are provided between the fastening nut of the front connecting rod and the side of the support lug, and between the fastening nut of the rear connecting rod and the oblique support lug.

[0016] Furthermore, a U-shaped handle is fixed to the top of the furnace door, and the U-shaped handle spans the front connecting rod and is distributed in a cross shape with the front connecting rod.

[0017] Furthermore, both ends of the side plates that make up the front hinge arm and the rear hinge arm extend beyond the ends of the transverse stiffener and form a clearance interval, and the pin hole, the front connecting rod and the rear connecting rod are set at the clearance interval.

[0018] This utility model has the following beneficial effects:

[0019] This utility model, through the design of a hinge device with four hinge arms, can connect the furnace door and the furnace body. The single-sided double hinge structure ensures that the furnace door can be lifted upwards a certain distance, which is suitable for the assembly and disassembly of the furnace door. It can also fold and pull the furnace door horizontally, enabling the furnace door to open and close like a push-pull mechanism, which saves effort, reduces labor intensity, facilitates operation, and reduces personnel input. At the same time, the hinge device can also play a guiding role, improving work efficiency and eliminating certain safety hazards.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the furnace door of this utility model when it is installed at the furnace opening;

[0023] Figure 2 This is a schematic diagram of the hinge device and furnace door of this utility model;

[0024] Figure 3 This is a structural diagram illustrating the process of the furnace door being pulled out of the furnace opening according to this utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the furnace door of this utility model when it is completely removed;

[0026] Figure 5 This is a schematic diagram of the structure of the furnace door of this utility model when it is folded and retracted;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Furnace door, 2-Front connecting rod, 3-Furnace body, 4-Furnace opening, 5-Rear connecting rod, 6-Furnace wall fixing position, 7-Front hinge arm, 8-Rear hinge arm, 9-Pin rod, 10-U-shaped handle, 101-Support ear side, 201-Threaded section, 202-Fastening nut, 601-Bottom beam, 602-Angled support ear, 603-Reinforcing rib plate, 701-Side plate, 702-Horizontal rib plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 As shown, this utility model is a hinge device for the inspection port of an industrial furnace, including a front connecting rod 2 installed on the furnace door 1 and a rear connecting rod 5 installed on the furnace body 3 near the outer area of ​​the furnace opening 4.

[0031] The front connecting rod 2 is set at the top of the furnace door 1. There are support ears 101 fixed on both sides of the middle part of the furnace door 1. The front connecting rod 2 is set between the two support ears 101 and is rotatably connected to the support ears 101.

[0032] The rear connecting rod 5 is fixed to the top of the furnace body 3 through the furnace wall fixing position 6, and the rear connecting rod 5 is rotatably connected to the furnace wall fixing position 6.

[0033] Two front hinge arms 7 are fixed on the front connecting rod 2, and two rear hinge arms 8 are fixed on the rear connecting rod 5. The front hinge arm 7 is composed of a set of side plates 701 and a transverse rib plate 702 set between the two side plates 701. The side plate 701 has a pin hole at the end away from the front connecting rod 2.

[0034] The rear hinge arm 8 has the same structural features as the front hinge arm 7, and the distance between the two side plates 701 on the rear hinge arm 8 is greater than the distance between the two side plates 701 on the front hinge arm 7.

[0035] The end of the front hinge arm 7 away from the front connecting rod 2 and the end of the rear hinge arm 8 away from the rear connecting rod 5 are connected by a pin hole and a pin 9. The pin hole ends of the two side plates 701 on the front hinge arm 7 are respectively attached to the inner side of the pin hole ends of the two side plates 701 on the rear hinge arm 8.

[0036] Among them, such as Figure 2 As shown, the furnace wall fixing position 6 includes a bottom beam 601, which is welded and fixed to the top of the furnace body 3. A set of inclined lugs 602 are welded and fixed to the top of the bottom beam 601, and the rear connecting rod 5 passes through and is rotatably installed in the hole of the inclined lugs 602.

[0037] Among them, such as Figure 2 As shown, a reinforcing rib plate 603 is welded and fixed between the two inclined lugs 602. The bottom edge of the reinforcing rib plate 603 is welded and fixed to the top surface of the bottom beam 601. A clearance area is formed between the top edge of the reinforcing rib plate 603 and the rear connecting rod 5.

[0038] Among them, such as Figure 2 As shown, both ends of the front connecting rod 2 and the rear connecting rod 5 are provided with threaded sections 201, and fastening nuts 202 are provided on the threaded sections 201. Washers are provided between the fastening nuts 202 of the front connecting rod 2 and the support lug 101, and between the fastening nuts 202 of the rear connecting rod 5 and the inclined support lug 602.

[0039] Among them, such as Figure 2 As shown, a U-shaped handle 10 is fixed to the top of the furnace door 1. The U-shaped handle 10 spans the front connecting rod 2 and is distributed in a cross shape with the front connecting rod 2.

[0040] Among them, such as Figure 2 As shown, both ends of the side plate 701 that makes up the front hinge arm 7 and the rear hinge arm 8 extend beyond both ends of the transverse stiffener plate 702 and form a clearance interval. The pin hole, the front connecting rod 2 and the rear connecting rod 5 are set at the clearance interval.

[0041] Among them, such as Figure 4 and Figure 5As shown, two blocking positions can be welded to the top of the furnace body 3 so that the furnace door 1, after being pulled out and flipped, can lean against the blocking positions to play a limiting role.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hinge device for an inspection port of an industrial furnace, characterized in that: Including a front connecting rod (2) installed on the furnace door (1) and a rear connecting rod (5) installed on the outer side of the furnace body (3) near the furnace opening (4); The front connecting rod (2) is set at the top of the furnace door (1). The furnace door (1) has two fixed support ears (101) on both sides of the middle part. The front connecting rod (2) is set between the two support ears (101) and is rotatably connected to the support ears (101). The rear connecting rod (5) is fixed to the top of the furnace body (3) through the furnace wall fixing position (6), and the rear connecting rod (5) is rotatably connected to the furnace wall fixing position (6); Two front hinge arms (7) are fixed on the front connecting rod (2), and two rear hinge arms (8) are fixed on the rear connecting rod (5). The front hinge arm (7) is composed of a set of side plates (701) and a transverse stiffener plate (702) disposed between the two side plates (701). The side plate (701) has a pin hole at the end away from the front connecting rod (2). The rear hinge arm (8) has the same structural features as the front hinge arm (7), and the distance between the two side plates (701) on the rear hinge arm (8) is greater than the distance between the two side plates (701) on the front hinge arm (7). The end of the front hinge arm (7) away from the front connecting rod (2) and the end of the rear hinge arm (8) away from the rear connecting rod (5) are connected by a pin hole and a pin (9). The pin hole ends of the two side plates (701) on the front hinge arm (7) are respectively attached to the inner side of the pin hole ends of the two side plates (701) on the rear hinge arm (8).

2. The hinge device for an industrial furnace inspection port according to claim 1, characterized in that, The furnace wall fixing position (6) includes a bottom beam (601), which is welded and fixed to the top of the furnace body (3). A set of inclined lugs (602) are welded and fixed to the top of the bottom beam (601), and the rear connecting rod (5) is inserted through and rotated in the hole of the inclined lugs (602).

3. The hinge device for an industrial furnace inspection port according to claim 2, characterized in that, A reinforcing rib plate (603) is welded and fixed between the two inclined lugs (602). The bottom edge of the reinforcing rib plate (603) is welded and fixed to the top surface of the bottom beam (601). A clearance area is formed between the top edge of the reinforcing rib plate (603) and the rear connecting rod (5).

4. The hinge device for an industrial furnace inspection port according to claim 1, characterized in that, Both ends of the front connecting rod (2) and the rear connecting rod (5) are provided with threaded sections (201), and fastening nuts (202) are provided on the threaded sections (201). Washers are provided between the fastening nuts (202) of the front connecting rod (2) and the support ear (101), and between the fastening nuts (202) of the rear connecting rod (5) and the inclined support ear (602).

5. The hinge device for an industrial furnace inspection port according to claim 1, characterized in that, The top of the furnace door (1) is fixed with a U-shaped handle (10), which spans the front connecting rod (2) and is distributed in a cross shape with the front connecting rod (2).

6. The hinge device for an industrial furnace inspection port according to claim 1, characterized in that, The two ends of the side plate (701) that make up the front hinge arm (7) and the rear hinge arm (8) extend beyond the two ends of the horizontal stiffener plate (702) and form a clearance interval. The pin hole, the front connecting rod (2) and the rear connecting rod (5) are set at the clearance interval.

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