A protective structure and annealing furnace

Abstract

The present application provides a protective structure and an annealing furnace, which belongs to the technical field of annealing furnaces. The protective structure includes a furnace body and a furnace door, a connecting rod is hinged between the furnace body and the furnace door, the furnace door flips upward through the connecting rod, the connecting rod is elastically hinged to the furnace body, the connecting rod maintains a tendency to flip upward, and a locking member and a damping member are provided on the furnace body, the locking member is magnetically connected to the connecting rod, and the damping member is movably magnetically connected to the furnace door. In this application: the elastic hinge of the connecting rod is used to help the furnace door open, thereby achieving a labor-saving effect, the locking member is used to achieve the effect of tightly closing the furnace door, and the damping member is used to achieve delayed closing of the furnace door, thereby leaving time for taking and placing materials.

Description

Technical Field

[0001] The present application relates to the technical field of annealing furnaces, and in particular to a protective structure and an annealing furnace. Background Art

[0002] The box-type annealing furnace is a new generation of intelligent product with high-performance mechatronics. It is suitable for industrial analysis, experiments and production in industries such as coal, electronics, electricity, chemical industry, metallurgy, cement, ceramics, machinery, building materials, refractory materials, special materials, new material development, geological exploration, and medical research. The inner tank is a high-temperature silicon carbide furnace or an imported ceramic fiber integral vacuum-formed furnace. The furnace heats up on all four sides, which not only heats evenly, conducts heat quickly, has good thermal insulation, and saves electricity and energy; it can also better protect the heating element, and its annealing effect is better.

[0003] In this regard, China's patent application number is CN202322117437.0, which discloses an annealing furnace with a protective structure. The scheme mainly adopts a designed outer frame, a push block and a spring. The spring and the push block are assembled inside the outer frame. The three together form a safety mechanism. The ends of the push block and the outer frame are respectively installed on the corresponding sealing door and the furnace body. When the sealing door is opened, the sealing door drives the push block to move synchronously. At this time, the push block generates an extrusion force on the spring. When the sealing door is not blocked by external force, the spring in a compressed state releases its elastic force and generates a thrust on the push block, thereby pushing and squeezing the sealing door through the push block, ensuring that the sealing door is automatically closed and closed tightly, thereby improving the safety of the utility model.

[0004] However, in the process of implementing the technical solutions in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0005] 1. The sealing door continuously compresses the spring during the opening process, making it very difficult to open the sealing door;

[0006] 2. When the sealing door is in the open state, human power is required to prevent the sealing door from closing, otherwise the sealing door will close quickly under the action of the spring, affecting the loading and unloading of materials. Utility Model Content

[0007] In order to make up for the above deficiencies, the present application provides a protection structure and an annealing furnace, aiming to improve the problems mentioned in the above background technology.

[0008] In the first aspect, an embodiment of the present application provides a protective structure, including a furnace body and a furnace door, wherein a connecting rod is hinged between the furnace body and the furnace door, and the furnace door is flipped upward by the connecting rod. The connecting rod is elastically hinged to the furnace body, and the connecting rod maintains a tendency to flip upward. A locking member and a damping member are provided on the furnace body, the locking member is magnetically connected to the connecting rod, and the damping member is movably magnetically connected to the furnace door.

[0009] In a specific implementation manner, four connecting rods are hinged between the furnace body and the furnace door, and the four connecting rods are respectively located on both sides of the furnace body, and the upper connecting rod is shorter than the lower connecting rod.

[0010] In the above implementation process, the furnace door can be deflected 90 degrees through the deflection of four connecting rods and turned over the furnace body without affecting the taking of materials.

[0011] In a specific embodiment, the locking member includes an electromagnet and a magnetic block, the magnetic block is fixedly connected to the connecting rod, the electromagnet is installed on the furnace body, and the electromagnet is magnetically connected to the magnetic block.

[0012] In the above implementation process, when the furnace door is opened, the electromagnet reverses the magnetic poles to push the magnetic block and the connecting rod to push the furnace door out. During the closing process of the furnace door, the repulsive force can also be used to alleviate the direct impact of the furnace door on the furnace body. When the furnace door is closed, the electromagnet attracts the magnetic block to ensure that the furnace door and the furnace body are tightly closed. It should be noted that the magnetic pole switching control of the electromagnet can be controlled by the proximity switch of the furnace door, or by a delay relay, or by a manual button. There are various control methods, which are all existing technologies and will not be repeated here.

[0013] In a specific embodiment, the damping member includes a damping rod, the damping rod is hinged to the furnace body, the telescopic end of the damping rod is elastically hinged with a magnetic head, and the magnetic head is magnetically connected to the furnace door.

[0014] In a specific embodiment, the damping rod has a resettable function.

[0015] In the above implementation process, the furnace door is magnetically attracted to the magnetic head when it flips upward. During the closing process, the furnace door flips downward under the action of gravity and pulls the damping rod. As the deflection angle of the furnace door increases, the influence of gravity increases, the magnetic attraction between the magnetic head and the furnace door is broken, and then the furnace door begins to close automatically, and the damping rod automatically resets. In this embodiment, the telescopic end of the magnetic head and the damping rod is elastically hinged, so that the magnetic head can be kept in the correct posture waiting for magnetic attraction with the furnace door.

[0016] In a specific embodiment, the damping member further includes a cushion block, the cushion block is fixedly connected to the furnace body, and the cushion block is movably pressed against the damping rod.

[0017] In the above implementation process, when the damping rod is pulling the furnace door, the damping rod will deflect upward. When the magnetic attraction is broken, the damping rod will fall on the cushion block to prepare for the next magnetic attraction. The cushion block can reduce the impact between the damping rod and the furnace body.

[0018] In a specific embodiment, a torsion spring is provided between the connecting rod and the furnace body.

[0019] In the above implementation process, the torsion spring is used to keep the connecting rod in an upwardly deflected state, which can offset part of the weight of the furnace door and make the furnace door easier to open.

[0020] In a second aspect, the present application further provides an annealing furnace, comprising the above-mentioned protection structure.

[0021] Compared with the prior art, the beneficial effects of the present application are: utilizing the elastic hinge of the connecting rod to help the furnace door open, thereby achieving a labor-saving effect, utilizing a locking member to achieve a tightly closed effect of the furnace door, and utilizing a damping member to achieve delayed closing of the furnace door, thereby leaving time for taking and placing materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the closed state of the protection structure provided in the embodiment of the present application;

[0024] Figure 2 A schematic diagram of the protective structure in an open state provided in an embodiment of the present application;

[0025] Figure 3 Provided for the implementation of this application Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 4 Provided for the implementation of this application Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0027] In the figure: 10 - furnace body; 20 - furnace door; 30 - connecting rod; 40 - locking member; 41 - electromagnet; 42 - magnetic block; 50 - damping member; 51 - damping rod; 52 - magnetic head; 53 - pad; 60 - torsion spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0029] See also Figure 1-Figure 4The present application provides a protective structure, including a furnace body 10 and a furnace door 20, a connecting rod 30 is hinged between the furnace body 10 and the furnace door 20, the furnace door 20 is flipped upward through the connecting rod 30, the connecting rod 30 is elastically hinged with the furnace body 10, the connecting rod 30 maintains the tendency to flip upward, and a locking member 40 and a damping member 50 are arranged on the furnace body 10, the locking member 40 is magnetically connected to the connecting rod 30, and the damping member 50 is movably connected to the furnace door 20 by magnetic attraction. Among them, the elastic hinge of the connecting rod 30 is used to help the furnace door 20 open, thereby achieving a labor-saving effect, the locking member 40 is used to achieve the effect of tightly closing the furnace door 20, and the damping member 50 is used to achieve the delayed closing of the furnace door 20, thereby leaving time for taking and placing materials.

[0030] See also Figure 1-Figure 4 Four connecting rods 30 are hinged between the furnace body 10 and the furnace door 20. The four connecting rods 30 are respectively located on both sides of the furnace body 10, and the upper connecting rod 30 is shorter than the lower connecting rod 30. The furnace door 20 can be deflected 90 degrees by the deflection of the four connecting rods 30 and turned over the furnace body 10, which will not affect the taking of materials.

[0031] See also Figure 1-Figure 4 The locking member 40 includes an electromagnet 41 and a magnetic block 42. The magnetic block 42 is fixedly connected to the connecting rod 30. The electromagnet 41 is mounted on the furnace body 10, and the electromagnet 41 is magnetically connected to the magnetic block 42. When the furnace door 20 is opened, the electromagnet 41 reverses the magnetic pole to push the magnetic block 42 and the connecting rod 30 to push the furnace door 20 out. During the closing process of the furnace door 20, the repulsive force can also be used to alleviate the direct impact of the furnace door 20 on the furnace body 10. When the furnace door 20 is closed, the electromagnet 41 attracts the magnetic block 42 to ensure that the furnace door 20 and the furnace body 10 are tightly closed. It should be noted that the magnetic pole switching control of the electromagnet 41 can be controlled by the proximity switch of the furnace door 20, or by the delay relay, or by the manual button. There are various control methods, all of which are prior art and will not be repeated here.

[0032] See also Figure 1-Figure 4 The damping member 50 includes a damping rod 51, which is hinged to the furnace body 10. The telescopic end of the damping rod 51 is elastically hinged with a magnetic head 52, and the magnetic head 52 is magnetically connected to the furnace door 20. The damping rod 51 has a reset function. When the furnace door 20 flips to the top, it is magnetically attracted to the magnetic head 52. During the closing process, the furnace door 20 flips downward under the action of gravity and pulls the damping rod 51. As the deflection angle of the furnace door 20 increases, the influence of gravity increases, and the magnetic attraction between the magnetic head 52 and the furnace door 20 is broken, and then the furnace door 20 starts to close automatically, and the damping rod 51 automatically resets. In this embodiment, the magnetic head 52 is elastically hinged to the telescopic end of the damping rod 51, so that the magnetic head 52 can be kept in the correct posture waiting for magnetic attraction with the furnace door 20.

[0033] See also Figure 1-Figure 4The damping member 50 further includes a cushion block 53, which is fixedly connected to the furnace body 10 and movably pressed against the damping rod 51. When the damping rod 51 pulls the furnace door 20, the damping rod 51 will deflect upward. When the magnetic attraction is broken, the damping rod 51 will fall on the cushion block 53 to prepare for the next magnetic attraction. The cushion block 53 can reduce the collision between the damping rod 51 and the furnace body 10.

[0034] See also Figure 1-Figure 4 A torsion spring 60 is provided between the connecting rod 30 and the furnace body 10. The torsion spring 60 is used to keep the connecting rod 30 in an upwardly deflected state, which can offset part of the weight of the furnace door 20, making the furnace door 20 easier to open.

[0035] See also Figure 1-Figure 4 The present application further provides an annealing furnace, comprising the above-mentioned protective structure.

[0036] The working principle of the protection structure is as follows: when the furnace door 20 is closed, the electromagnet 41 attracts the magnetic block 42 to keep the furnace door 20 tightly closed. When it needs to be opened, the electromagnet 41 switches the magnetic pole to push the furnace door 20 out. With the help of the torsion spring 60, the furnace door 20 can be easily opened until it is flipped over the furnace body 10 and magnetically attracted to the magnetic head 52 on the damping rod 51. At this time, the four connecting rods 30 are deflected to an upward state, and part of the gravity of the furnace door 20 is supported by the connecting rod 30, and the remaining gravity counteracts the force of the torsion spring 60 and the force of the damping rod 51 to slowly reset downward. At this time, the material can be taken in and put out. As the damping rod 51 is stretched, the connecting rod 30 deflects to a rightward posture. At this time, the supporting force of the connecting rod 30 The furnace door 20 becomes weaker, and the furnace door 20 borne by the damping rod 51 becomes heavier and heavier until the magnetic attraction is broken, and the furnace door 20 begins to deflect downward. At the same time, the torsion spring 60 continues to twist, and the torque is enhanced, which can slow down the deflection speed of the furnace door 20, and then the repulsive force of the electromagnet 41 is used to provide the final buffer before the furnace door 20 is closed. Finally, the electromagnet 41 reverses the magnetic pole to suck the furnace door 20 and keep it tightly closed to play a protective role. In summary, the elastic hinge of the connecting rod 30 is used to help the furnace door 20 open, thereby achieving a labor-saving effect, the locking member 40 is used to achieve the effect of tightly closing the furnace door 20, and the damping member 50 is used to achieve the delayed closing of the furnace door 20, thereby leaving time for the material to be taken and placed.

[0037] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. A protective structure, characterized in that: The invention comprises a furnace body (10) and a furnace door (20), wherein a connecting rod (30) is hinged between the furnace body (10) and the furnace door (20), the furnace door (20) is flipped upward by the connecting rod (30), the connecting rod (30) is elastically hinged to the furnace body (10), the connecting rod (30) maintains a tendency to flip upward, and a locking member (40) and a damping member (50) are provided on the furnace body (10), the locking member (40) is magnetically connected to the connecting rod (30), and the damping member (50) is movably connected to the furnace door (20) by magnetic attraction.

2. A protective structure according to claim 1, characterized in that: Four connecting rods (30) are hinged between the furnace body (10) and the furnace door (20), and the four connecting rods (30) are respectively located on both sides of the furnace body (10), and the upper connecting rod (30) is shorter than the lower connecting rod (30).

3. A protective structure according to claim 2, characterized in that: The locking member (40) comprises an electromagnet (41) and a magnetic block (42); the magnetic block (42) is fixedly connected to the connecting rod (30); the electromagnet (41) is mounted on the furnace body (10); and the electromagnet (41) is magnetically connected to the magnetic block (42).

4. A protective structure according to claim 3, characterized in that: The damping member (50) comprises a damping rod (51), the damping rod (51) is hinged to the furnace body (10), the telescopic end of the damping rod (51) is elastically hinged with a magnetic head (52), and the magnetic head (52) is magnetically connected to the furnace door (20).

5. A protective structure according to claim 4, characterized in that: The damping rod (51) has a resettable function.

6. A protective structure according to claim 5, characterized in that: The damping member (50) further comprises a cushion block (53), wherein the cushion block (53) is fixedly connected to the furnace body (10), and the cushion block (53) is movably pressed against the damping rod (51).

7. A protective structure according to claim 6, characterized in that: A torsion spring (60) is provided between the connecting rod (30) and the furnace body (10).

8. An annealing furnace, characterized in that: The protective structure comprises any one of claims 1 to 7.

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