A storage type oven door for a muffle oven

Abstract

The utility model discloses a kind of storage type furnace door for muffle furnace, belong to muffle furnace furnace door technical field, furnace door body includes door panel, the side fixed mounting of door panel has hinge, the surface of hinge is fixedly connected with the surface of muffle furnace body, the surface fixedly connected with handle of door panel, the middle position of door panel is detachably connected with sealing structure, the middle position swing connection of sealing structure has flap, this storage type furnace door for muffle furnace, by the opening of door panel setting, rotary groove, upper rotary shaft and lower rotary shaft make that flap has the function of free rotation, can be rotated after furnace door opening, so that the furnace mouth sealing block of high temperature does not scald user, simple structure, it is convenient to the existing muffle furnace furnace door retrofit, conducive to popularization, and by the positioning sleeve, first limiting sheet and second limiting sheet set, not only convenient to quickly disassemble combination, and can be through the elastic quick fixed rotation position of flap, improve the convenience of use, make external beautiful simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of muffle furnace door technology, and more specifically, to a retractable furnace door for muffle furnaces. Background Technology

[0002] A muffle furnace is a high-temperature heating device commonly used in high-temperature processing and sintering processes in laboratories, industrial manufacturing, and other fields.

[0003] Currently, to prevent users from being burned by contact with the inner wall of the furnace door during loading and unloading, the furnace door is often retracted to prevent contact with the user. However, common furnace door retraction structures are not convenient for modifying and using existing muffle furnace doors. For example, CN221549300U discloses a retractable furnace door for muffle furnaces, which includes two slides symmetrically arranged vertically. The outer side of the slide has a strip groove, and a slider is slidably connected to the strip groove. A bracket is rotatably connected to the slider, and both ends of the bracket are slidably connected to the slide. The inner side of the bracket has an insulation door, and the front end of the slide has a right-angled cut.

[0004] As can be seen from the above-disclosed scheme, the furnace door opens the muffle furnace opening by rotating the bracket, and then the bracket slides horizontally through the slide groove, thereby driving the heat preservation door to move horizontally so that its inner surface will not come into contact with the user and cause burns. However, the furnace door storage structure is cumbersome and complicated, difficult to operate, and cannot be modified for existing muffle furnace doors, which is not conducive to its widespread use and will affect the external aesthetics. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a retractable furnace door for muffle furnaces. This retractable furnace door, through the opening, rotating groove, upper rotating shaft, and lower rotating shaft of the door panel, allows the flap to rotate freely. It can be rotated after the furnace door is opened, preventing the high-temperature furnace opening sealing block from burning the user. The structure is simple, easy to modify existing muffle furnace doors, and conducive to promotion. Furthermore, the positioning sleeve, first limiting piece, and second limiting piece not only facilitate quick disassembly and assembly but also allow the rotation position of the flap to be quickly fixed by elasticity, improving ease of use and enhancing the external aesthetics.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A retractable door for a muffle stove includes a muffle stove body and a door body. The door body includes a door panel, a hinge fixedly installed on one side of the door panel, the surface of the hinge being fixedly connected to the surface of the muffle stove body, a handle fixedly connected to the surface of the door panel, a sealing structure detachably connected to the middle of the door panel, a flap movably connected to the middle of the sealing structure, and a stove opening sealing block fixedly connected to the inner surface of the flap. The surface of the stove opening sealing block is movably connected to the inner wall of the stove opening of the muffle stove body. This retractable door for a muffle stove allows the flap to rotate freely through the opening, rotating groove, upper rotating shaft, and lower rotating shaft in the door panel. It can be rotated after the stove door is opened, preventing the hot stove opening sealing block from burning the user. The structure is simple, easy to modify existing muffle stove doors, and conducive to promotion. Furthermore, the positioning sleeve, first limiting piece, and second limiting piece not only facilitate quick disassembly and assembly but also allow the rotation position of the flap to be quickly fixed by elasticity, improving ease of use and enhancing the external aesthetics.

[0008] Furthermore, the sealing structure includes a positioning sleeve made of perfluoroether rubber. A first limiting piece and a second limiting piece are respectively provided on both sides of the positioning sleeve. A limiting groove is formed between the first limiting piece and the second limiting piece. The positioning sleeve is not only resistant to high temperature, but its inner wall is also in contact with and squeezed against the four sides of the flap, so its rotation position can be fixed by elasticity.

[0009] Furthermore, an opening is provided in the middle of the door panel, and symmetrical rotating grooves are provided on the inner wall of the opening. The inner wall of the opening is movably connected to the inner wall of the limiting groove, which facilitates the disassembly and assembly of the positioning sleeve.

[0010] Furthermore, an upper rotating shaft is fixedly connected to the top of the flap, and a lower rotating shaft is fixedly connected to the bottom of the flap. The surfaces of the upper and lower rotating shafts are movably connected to the inner walls of the symmetrical rotating grooves, respectively. The upper and lower rotating shafts are located in the middle position of the flap, allowing the flap to rotate freely.

[0011] Furthermore, one end of the furnace opening sealing block is fixedly connected to an insulation board, and the other surface of the insulation board is fixedly connected to the surface of the flip plate. The insulation board is made of insulation material and has heat insulation function, which can greatly reduce the temperature of the furnace opening sealing block from being transferred to the door panel, thereby making the inner surface temperature of the door panel lower and preventing burns upon contact.

[0012] Furthermore, two anti-detachment rods are fixedly connected to the outer surface of the flip panel. The anti-detachment rods have a T-shaped cross-section and are made of ceramic material, making it easy for the user to grip and rotate the flip panel.

[0013] Furthermore, the inner wall of the limiting groove is provided with a first through hole and a second through hole, and the inner walls of the first through hole and the second through hole are in contact with and pressed against the surfaces of the upper rotating shaft and the lower rotating shaft, respectively, which has a damping effect and prevents the flip plate from rotating arbitrarily.

[0014] Compared with existing technologies, the advantages of this utility model are: This solution allows the flap to rotate freely through the opening, rotating groove, upper rotating shaft, and lower rotating shaft in the door panel. It can be rotated after the furnace door is opened, so that the high-temperature furnace opening sealing block will not burn the user. The structure is simple, easy to modify existing muffle furnace doors, and conducive to promotion.

[0015] This solution, through the positioning sleeve, first limiting piece, and second limiting piece, not only facilitates quick disassembly and assembly, but also allows the rotational position of the flip plate to be quickly fixed by elasticity, improving ease of use and enhancing the external aesthetics. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the furnace door body structure of this utility model; Figure 3 for Figure 2 A schematic diagram of the flap structure; Figure 4 for Figure 2 A schematic diagram of the door panel structure; Figure 5 for Figure 2 A schematic diagram of the positioning sleeve structure.

[0017] Explanation of the labels in the diagram: 1. Muffle furnace body; 2. Furnace door body; 3. Door panel; 31. Handle; 32. Opening; 33. Rotating groove; 34. Hinge; 4. Flip plate; 41. Upper rotating shaft; 42. Lower rotating shaft; 43. Insulation board; 44. Furnace opening sealing block; 45. Anti-detachment rod; 5. Positioning sleeve; 51. First limiting piece; 52. Second limiting piece; 53. Limiting groove; 54. First through hole; 55. Second through hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 Please see Figure 1-5 A retractable furnace door for a muffle furnace includes a muffle furnace body 1 and a furnace door body 2. The muffle furnace body 1 and the furnace door body 2 are rotatably connected and equipped with a fastening assembly, which is prior art. The muffle furnace body 1 is also equipped with components such as a heating element, an isolation chamber, and a control system. Its composition and working principle are well known to those skilled in the art. The furnace door body 2 includes a door panel 3. A hinge 34 is fixedly installed on one side of the door panel 3. The surface of the hinge 34 is fixedly connected to the surface of the muffle furnace body 1. A handle 31 is fixedly connected to the surface of the door panel 3. A sealing structure is detachably connected to the middle position of the door panel 3. The sealing structure includes a positioning sleeve 5. The positioning sleeve 5 is made of perfluoroether rubber material. A first limiting piece 51 and a second limiting piece 52 are respectively provided on both sides of the positioning sleeve 5. A limiting groove 53 is formed between the first and second limiting plates 52. The inner wall of the limiting groove 53 has a first through hole 54 and a second through hole 55. The inner walls of the first through hole 54 and the second through hole 55 are in contact with and pressed against the surfaces of the upper rotating shaft 41 and the lower rotating shaft 42, respectively, which has a damping effect and prevents the flap 4 from rotating arbitrarily. The positioning sleeve 5 is not only resistant to high temperature, but its inner wall is also in contact with and pressed against the four sides of the flap 4, which can fix its rotation position by elastic force. The flap 4 is movably connected to the middle position of the sealing structure. The inner surface of the flap 4 is fixedly connected to the furnace mouth sealing block 44. The furnace mouth sealing block 44 is used to seal the furnace mouth of the muffle furnace. The furnace mouth sealing block 44 is made of high temperature resistant insulation material, which is the prior art. The surface of the furnace mouth sealing block 44 is movably connected to the inner wall of the furnace mouth of the muffle furnace body 1.

[0020] The top of the flip plate 4 is fixedly connected to an upper rotating shaft 41, and the bottom of the flip plate 4 is fixedly connected to a lower rotating shaft 42. The surfaces of the upper rotating shaft 41 and the lower rotating shaft 42 are respectively movably connected to the inner wall of the symmetrical rotating groove 33. The upper rotating shaft 41 and the lower rotating shaft 42 are located in the middle position of the flip plate 4, so that the flip plate 4 can rotate freely. One end of the furnace opening sealing block 44 is fixedly connected to an insulation plate 43, and the other surface of the insulation plate 43 is fixedly connected to the surface of the flip plate 4. The insulation plate 43 is made of insulation material and has heat insulation function, which can greatly reduce the temperature of the furnace opening sealing block 44 transferred to the door panel 3, thereby making the inner surface temperature of the door panel 3 lower and preventing burns upon contact.

[0021] Two anti-detachment rods 45 are fixedly connected to the outer surface of the flip plate 4. The cross-sectional shape of the anti-detachment rods 45 is T-shaped and made of ceramic material, which makes it easy for the user to grasp and rotate the flip plate 4. An opening 32 is opened in the middle of the door panel 3. The inner wall of the opening 32 has symmetrical rotating grooves 33. The inner wall of the opening 32 is movably connected to the inner wall of the limiting groove 53, which facilitates the disassembly and assembly of the positioning sleeve 5.

[0022] When using the retractable door of this muffle furnace, first grasp the handle 31 to open the door body 2, then grasp the anti-slip rod 45 with the other hand and push the flap 4 to rotate 180°. This causes the furnace opening sealing block 44 and the inner surface of the flap 4 to rotate to the surface of the door panel 3. When the user puts or takes out materials into the furnace cavity, the user's hands will not come into contact with the furnace opening sealing block 44 and the inner surface of the flap 4 and be burned. At the same time, after the flap 4 completes its rotation, it is pressed against the inner wall of the positioning sleeve 5. The elasticity of the positioning sleeve 5 positions the flap 4 to the correct rotation position. The opening 32, rotating groove 33, upper rotating shaft 41 and lower rotating shaft 42 of plate 3 enable the flap 4 to rotate freely. It can be rotated after the furnace door is opened, so that the high temperature furnace opening sealing block 44 will not burn the user. The structure is simple, which is convenient for the modification of existing muffle furnace doors and is conducive to promotion. In addition, the positioning sleeve 5, the first limiting piece 51 and the second limiting piece 52 not only facilitate quick disassembly and assembly, but also can quickly fix the rotation position of the flap 4 with elasticity, which improves the convenience of use and makes the appearance more aesthetically pleasing.

[0023] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A retractable furnace door for a muffle furnace, comprising a muffle furnace body (1) and a furnace door body (2), characterized in that: The furnace door body (2) includes a door panel (3), a hinge (34) is fixedly installed on one side of the door panel (3), the surface of the hinge (34) is fixedly connected to the surface of the muffle furnace body (1), a handle (31) is fixedly connected to the surface of the door panel (3), a sealing structure is detachably connected to the middle position of the door panel (3), a flip plate (4) is movably connected to the middle position of the sealing structure, a furnace opening sealing block (44) is fixedly connected to the inner surface of the flip plate (4), and the surface of the furnace opening sealing block (44) is movably connected to the inner wall of the furnace opening of the muffle furnace body (1).

2. The retractable furnace door for a muffle furnace according to claim 1, characterized in that: The sealing structure includes a positioning sleeve (5), which is made of perfluoroether rubber material. A first limiting piece (51) and a second limiting piece (52) are respectively provided on both sides of the positioning sleeve (5). A limiting groove (53) is formed between the first limiting piece (51) and the second limiting piece (52).

3. A retractable furnace door for a muffle furnace according to claim 2, characterized in that: The door panel (3) has an opening (32) in the middle, and the inner wall of the opening (32) has a symmetrical rotating groove (33). The inner wall of the opening (32) is movably connected to the inner wall of the limiting groove (53).

4. A retractable furnace door for a muffle furnace according to claim 3, characterized in that: The top of the flap (4) is fixedly connected to an upper rotating shaft (41), and the bottom of the flap (4) is fixedly connected to a lower rotating shaft (42). The surfaces of the upper rotating shaft (41) and the lower rotating shaft (42) are respectively movably connected to the inner wall of the symmetrical rotating groove (33).

5. A retractable furnace door for a muffle furnace according to claim 1, characterized in that: One end of the furnace opening sealing block (44) is fixedly connected to an insulation board (43), and the other surface of the insulation board (43) is fixedly connected to the surface of the flip plate (4). The insulation board (43) is made of insulation material.

6. A retractable furnace door for a muffle furnace according to claim 1, characterized in that: Two anti-detachment rods (45) are fixedly connected to the outer surface of the flap (4), and the cross-sectional shape of the anti-detachment rods (45) is T-shaped.

7. A retractable furnace door for a muffle furnace according to claim 2, characterized in that: The inner wall of the limiting groove (53) is provided with a first through hole (54) and a second through hole (55).

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