Scratch-proof electric furnace door

Abstract

The utility model discloses an anti-scraping electric furnace door, and relates to the technical field of electric furnaces. Comprising an electric furnace body, a baking chamber is formed in the front side face of the electric furnace body, a baking tray is placed in the baking chamber, vertical plates are fixedly installed on the front side face, corresponding to the baking chamber, of the electric furnace body and close to the left and right positions, and a furnace door body is movably installed between the vertical plates and close to the lower side through a door shaft; a heat insulation plate is fixedly installed on the upper surface of the furnace door body through blind rivets, counter bores are formed in the positions, corresponding to the blind rivets, of the upper surface of the heat insulation plate, and the upper surfaces of the blind rivets are 1-1.5 mm lower than the upper surface of the heat insulation plate. The counter bores are used for descending the installation positions of the blind rivets, so that the upper surfaces of the blind rivets do not protrude, the baking tray is convenient to store and take, the baking tray is effectively prevented from being scratched, the service life of the baking tray is prolonged, meanwhile, the oven door body serves as a supporting structure for the baking tray to enter and exit, the baking tray is convenient to pull out, and use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric furnaces, in particular to a scratch-resistant electric furnace door. Background Art

[0002] Electric furnace is a universal heating equipment, which can be divided into box furnace, tube furnace and crucible furnace according to its appearance. Electric furnace is mainly used in thermal processing, industrial workpiece processing, cement, building materials industry, thermal processing or processing of small workpieces; used for drug inspection, pretreatment of medical samples, etc.; as sample processing in the fields of water quality analysis, environmental analysis, etc.; can also be used for petroleum and its analysis; used for determination of moisture, ash, volatile matter, ash melting point analysis, ash composition analysis, elemental analysis; can also be used as a general ashing furnace. Among them, the box-type resistance furnace is an industrial furnace that uses electric current to heat the electric heating element or heating medium in the furnace, thereby heating the workpiece or material. Box-type electric furnace is mainly used for high-temperature precision annealing, microcrystallization, ceramic glaze preparation, mold annealing, powder metallurgy, rubber powder experiment, nanomaterials, metal parts annealing and all heat treatments required by high-temperature processes. Widely used in colleges and universities, scientific research institutes, industrial and mining enterprises, military industry, electronics, and metallurgy.

[0003] In the prior art, the door of a conventional box-type electric furnace rotates outward when opened. After the door is opened, the door can further support the baking tray that is about to be pulled out. However, the pull nails on the door are obviously protruding after installation, which can easily cause the baking tray to be scratched during the process of the baking tray being pulled in and out, thereby reducing the service life of the baking tray. Utility Model Content

[0004] The utility model provides a scratch-resistant electric furnace door to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-scratch electric furnace door, comprising an electric furnace body, a baking chamber is provided on the front side of the electric furnace body, a baking tray is placed in the baking chamber, vertical plates are fixedly installed near the left and right positions of the front side of the electric furnace body corresponding to the baking chamber, a furnace door body is movably installed between the vertical plates near the lower side through a door shaft, a heat insulation board is fixedly installed on the upper surface of the furnace door body through rivets, a countersunk hole is provided on the upper surface of the heat insulation board at a position corresponding to the rivet, and the upper surface of the rivet is 1mm-1.5mm lower than the upper surface of the heat insulation board.

[0006] Furthermore, an observation window is fixedly installed near the middle position of the lower side of the furnace door body.

[0007] Furthermore, a handle is fixedly installed on the lower surface of the furnace door body near the front side.

[0008] Furthermore, when the handle is supported on the table, the oven door body is a horizontal structure, and at this time, the upper surface of the oven door body is flush with the lower inner wall of the baking chamber.

[0009] Furthermore, the length and width of the heat insulation board are the same as the length and width of the furnace door body.

[0010] Furthermore, a sealing gasket is provided on the front side of the electric furnace body corresponding to the furnace door body.

[0011] Compared with the prior art, the utility model provides a scratch-resistant electric furnace door, which has the following beneficial effects:

[0012] The anti-scratch electric furnace door is provided with a handle so that the furnace door body can be rotated and opened along the door axis. The handle is placed on the placement table. The handle supports the furnace door body so that the upper surface of the furnace door body is flush with the lower inner wall of the baking chamber at this time, thereby facilitating the placement and removal of baking trays in the baking chamber. In addition, countersunk holes are provided at the rivet installation positions on the insulation board. The countersunk holes make the upper surface height of the rivet lower than the upper surface height of the insulation board after installation, thereby effectively preventing the baking tray from being scratched and extending the service life of the baking tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a cross-sectional view of the rivet installation of the utility model.

[0016] In the figure: 1. Electric furnace body; 2. Baking chamber; 3. Baking tray; 4. Vertical board; 5. Door axis; 6. Furnace door body; 7. Rivet; 8. Heat insulation board; 9. Countersunk hole; 10. Observation window; 11. Handle; 12. Sealing gasket. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3The utility model discloses an anti-scratch electric furnace door, comprising an electric furnace body 1, a baking chamber 2 is provided on the front side of the electric furnace body 1, a baking tray 3 is placed in the baking chamber 2, vertical plates 4 are fixedly installed near the left and right positions of the front side of the electric furnace body 1 corresponding to the baking chamber 2, a furnace door body 6 is movably installed between the vertical plates 4 near the lower side through a door shaft 5, a heat insulation board 8 is fixedly installed on the upper surface of the furnace door body 6 through a rivet 7, a countersunk hole 9 is provided on the upper surface of the heat insulation board 8 at a position corresponding to the rivet 7, and the upper surface of the rivet 7 is 1mm-1.5mm lower than the upper surface of the heat insulation board 8.

[0019] Specifically, an observation window 10 is fixedly installed near the middle of the lower side of the furnace door body 6.

[0020] In this embodiment, the observation window 10 is convenient for viewing the baking conditions in the baking chamber 2 .

[0021] Specifically, a handle 11 is fixedly installed on the lower surface of the furnace door body 6 near the front side.

[0022] In this embodiment, the handle 11 facilitates the control of the opening and closing of the furnace door body 6 .

[0023] Specifically, when the handle 11 is supported on the table, the oven door body 6 is a horizontal structure, and at this time, the upper surface of the oven door body 6 is flush with the lower inner wall of the baking chamber 2.

[0024] In this embodiment, after the oven door body 6 is opened, it can support the baking tray 3, making it convenient for the baking tray 3 to move in and out.

[0025] Specifically, the length and width of the heat insulation board 8 are the same as the length and width of the furnace door body 6 .

[0026] In this embodiment, the heat insulation board 8 isolates the heat in the baking chamber 2 to prevent the oven door body 6 from being damaged by baking.

[0027] Specifically, a sealing gasket 12 is provided on the front side of the electric furnace body 1 corresponding to the furnace door body 6 .

[0028] In this embodiment, the sealing gasket 12 makes the sealing effect between the furnace door body 6 and the electric furnace body 1 better, thereby preventing heat loss.

[0029] When in use, the oven door body 6 is rotated and opened along the door axis 5 through the handle 11, and the handle 11 is placed on the placement table on the lower side of the electric furnace body 1. The handle 11 supports the oven door body 6 so that the upper surface of the oven door body 6 is flush with the lower inner wall of the baking chamber 2, and the baking tray 3 is placed on the upper surface of the oven door body 6 at this time, and then the baking tray 3 is pushed into the baking chamber 2, especially the baking tray 3 after baking, which has a higher temperature, is pulled out of the baking chamber 2 through the oven door body 6, so that the baking tray 3 can be more stably entered and exited, thereby facilitating the placement and removal of the baking tray 3 in the baking chamber 2, and the installation position of the pull nail 7 on the insulation board 8 is provided with a countersunk hole 9, and the countersunk hole 9 makes the upper surface height of the pull nail 7 lower than the upper surface height of the insulation board 8 after installation, thereby effectively avoiding the pull nail 7 from scratching the baking tray 3, thereby extending the service life of the baking tray 3.

[0030] To summarize, the anti-scratch electric furnace door uses the countersunk hole 9 to lower the installation position of the rivet 7 so that the upper surface of the rivet 7 is not raised, which is convenient for storing and taking out the baking tray 3, effectively preventing the baking tray 3 from being scratched, and extending the service life of the baking tray 3. At the same time, the furnace door body 6 serves as a supporting structure for the baking tray 3 to enter and exit, which makes it convenient to pull out the baking tray 3 and facilitates its use.

[0031] 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 scratch-resistant electric furnace door, comprising an electric furnace body (1), characterized in that: The front side of the electric furnace body (1) is provided with a baking chamber (2), a baking tray (3) is placed in the baking chamber (2), vertical plates (4) are fixedly installed near the left and right positions of the front side of the electric furnace body (1) corresponding to the baking chamber (2), a furnace door body (6) is movably installed between the vertical plates (4) near the lower side through a door shaft (5), a heat insulation board (8) is fixedly installed on the upper surface of the furnace door body (6) through a rivet (7), a countersunk hole (9) is provided on the upper surface of the heat insulation board (8) at a position corresponding to the rivet (7), and the upper surface of the rivet (7) is 1 mm-1.5 mm lower than the upper surface of the heat insulation board (8).

2. The scratch-resistant electric furnace door according to claim 1, characterized in that: An observation window (10) is fixedly mounted near the middle of the lower side surface of the furnace door body (6).

3. The scratch-resistant electric furnace door according to claim 1, characterized in that: A handle (11) is fixedly mounted on the lower surface of the furnace door body (6) near the front side.

4. The scratch-resistant electric furnace door according to claim 3, characterized in that: When the handle (11) is supported on the table, the oven door body (6) is a horizontal structure, and at this time, the upper surface of the oven door body (6) is flush with the lower inner wall of the baking chamber (2).

5. The scratch-resistant electric furnace door according to claim 1, characterized in that: The length and width of the heat insulation board (8) are the same as the length and width of the furnace door body (6).

6. The scratch-resistant electric furnace door according to claim 1, characterized in that: A sealing gasket (12) is provided on the front side of the electric furnace body (1) corresponding to the furnace door body (6).

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