Muffle box

Abstract

The utility model relates to the field of vacuum metal sintering furnaces, and discloses a muffle box which comprises a box body, a lower panel, a rear panel and a front cover plate, and the box body comprises a top plate and side plates connected to the left side and the right side of the top plate; the lower panel is arranged below the top plate and is detachably connected with the two side plates; the rear panel is detachably connected with the box body, and the rear panel, the box body and the lower panel are combined to form a box body with a front side opening; the front cover plate is detachably arranged at the front side opening of the box body and used for sealing the front side opening. The muffle box provided by the utility model can solve the problem of how to reduce the maintenance and replacement cost of the muffle box.

Description

Technical Field

[0001] The utility model relates to the field of vacuum metal sintering furnaces, in particular to a muffle box. Background Art

[0002] Sintering furnace refers to a special equipment that enables powder compacts to obtain the required physical, mechanical properties and microstructure through sintering, and is widely used in industrial production. In order to reduce the heat loss in the furnace body during the sintering process, some existing vacuum sintering furnaces are equipped with a muffle box in the furnace body. The muffle box can seal the metal workpiece in the muffle box for sintering, reducing the sintering heat loss. However, the traditional muffle box has a large effective space and a complex structure, and is not suitable for vacuum metal sintering furnaces with small effective space.

[0003] To this end, the prior art provides a muffle box, which is made of a metal material to form an integral box structure, has a small structure, and is suitable for vacuum metal sintering furnaces with small effective space. Among them, the muffle box is in a high temperature state for a long time, and the service life of the box body is easily shortened. In particular, the tensile strength of the bottom plate of the muffle box is greatly reduced under the dual effects of long-term high temperature and pressure of the material product, and it is more susceptible to damage than other parts of the muffle box. However, the muffle box uses an integrated structure as a whole, and the damaged parts cannot be disassembled and maintained and replaced separately. The entire muffle box can only be replaced, resulting in a high cost for maintenance and replacement of the muffle box. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The utility model provides a muffle box, which can at least solve the technical problem of how to reduce the cost of maintaining and replacing the muffle box.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a muffle box, comprising:

[0008] The box body includes a top plate and side plates connected to the left and right sides of the top plate;

[0009] The lower panel is arranged below the top panel and is detachably connected to the two side panels;

[0010] A rear panel is detachably connected to the box body, and the rear panel, the box body and the lower panel are combined to form a box body with a front opening;

[0011] The front cover plate is detachably arranged at the front opening of the box body and is used to close the front opening.

[0012] The muffle box is further configured to include a first ear plate, and the front and rear side edges of the top plate and the side plate are each connected to a first ear plate, the first ear plate is located outside the box body and contacts the inner side edge of the rear panel or the front cover plate, and the first ear plate located on the rear side of the box body is also connected to the rear panel.

[0013] Further, the muffle box also includes a second ear plate, and the left and right sides of the lower panel are respectively connected to a second ear plate, the second ear plate is located outside the box body, and the second ear plate is in contact with and connected to the outer side surface of the side plate.

[0014] It is further provided that a detachable structure is provided between the front cover and the box body, and the detachable structure includes:

[0015] The bracket is mounted on the outer side of the side plate and is symmetrically located on the left and right sides of the front cover plate. The bracket is provided with a bracket groove, and the notch of the bracket groove is arranged upward;

[0016] The support rod is mounted on the outer side of the front cover plate, and two ends of the support rod extend out of two sides of the front cover plate and are inserted into two bracket grooves.

[0017] It is further arranged that the groove wall of the aforementioned bracket is inclined away from the side plate, and the groove wall is inclined from the groove bottom of the bracket toward the direction away from the side plate. The end of the bracket rod is provided with a guide surface, which is parallel to and in surface contact with the groove wall of the bracket away from the side plate.

[0018] It is further provided that the muffle box also includes a support plate, and the front and rear sides of the lower panel are each connected with a support plate, the support plate includes a first plate portion and a second plate portion, the first plate portion is horizontally arranged, one side of the second plate portion is connected to the first plate portion, and the other side is arranged vertically upward or inclined away from the side panel;

[0019] Among them, the support plate located at the front side of the lower panel and the two brackets are combined to form an insertion space for inserting the front cover plate, and the support plate located at the rear side of the lower panel forms a supporting groove for supporting the rear panel.

[0020] It is further provided that at least two first reinforcing ribs and second reinforcing ribs are provided on the bottom surface of the aforementioned lower panel, the first reinforcing ribs are extended along the length direction of the lower panel, and the second reinforcing ribs are extended along the width direction of the lower panel.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the muffle box provided by the utility model has the following beneficial effects:

[0023] The muffle box provided by the utility model is formed by a disassembly and assembly of a box body, a lower panel, a rear panel and a front cover plate, and is suitable for a sintering furnace with a small effective space. The muffle box is detachable as a whole, and a damaged panel can be disassembled and replaced separately, which effectively reduces the cost of maintenance and replacement of the muffle box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A stereogram of the muffle box from a first viewing angle in the embodiment;

[0025] Figure 2 is a stereogram of the muffle box from a second viewing angle in the embodiment;

[0026] Figure 3 It is an exploded view of the box body and the front cover in the embodiment.

[0027] Figure Number:

[0028] 1. Box body; 11. Top plate; 12. Side plate; 13. First ear plate;

[0029] 2. lower panel; 21. second ear panel; 22. support plate; 221. first plate portion; 222. second plate portion; 23. first reinforcing rib; 24. second reinforcing rib;

[0030] 3. Rear panel; 4. Front cover; 41. Handle;

[0031] 5. Box body; 51. Front opening;

[0032] 6. detachable structure; 61. bracket; 611. bracket; 62. support rod; 621. guide surface;

[0033] 7. Insertion space; 8. Supporting groove; 9. Third ear plate. DETAILED DESCRIPTION

[0034] 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.

[0035] The utility model provides a muffle box, which is used to solve the problem of how to reduce the cost of maintaining and replacing the muffle box.

[0036] See also Figure 1 As shown, Figure 1 It is a stereoscopic diagram of the muffle box in the embodiment from a first viewing angle. The muffle box includes a box body 1, a lower panel 2, a rear panel 3 and a front cover 4.

[0037] The box body 1 includes a top plate 11 and two side plates 12 , and the side plates 12 are connected to the left and right sides of the top plate 11 respectively by integral connection or welding.

[0038] The lower panel 2 is located below the top panel 11 , and the lower panel 2 is detachably connected to the two side panels 12 .

[0039] The rear panel 3 is detachably connected to the box body 1 , and the rear panel 3 , the box body 1 and the lower panel 2 are combined to form a box body 5 having a front opening 51 .

[0040] The front cover plate 4 is detachably mounted on the front opening 51 of the box body 5 and is used to close the front opening 51 , thereby forming a closed muffle box.

[0041] The muffle box of the above technical solution is formed by a disassembly and assembly of a box body 1, a lower panel 2, a rear panel 3 and a front cover plate 4. Compared with the traditional muffle box, the muffle box has a simple structure and low manufacturing cost, and is suitable for sintering furnaces with small effective space. Compared with the existing muffle box, the muffle box is detachable as a whole, and the damaged panel can be disassembled and replaced separately, which effectively reduces the cost of maintenance and replacement of the muffle box.

[0042] See also Figure 1 As shown, the two side panels 12 can be symmetrically distributed relative to the top panel 11. In this way, the box body 1 can be prefabricated by integrally connecting the top panel 11 and the two side panels 12 to form an inverted U-shaped member. Since the top panel 11 and the side panels 12 of the muffle box are less susceptible to damage, the prefabricated box body 1 can greatly reduce the steps of disassembly and assembly of the muffle box and can also improve the structural strength of the muffle box.

[0043] See also Figure 1 As shown, the lower panel 2 and the rear panel 3 can be detachably connected only to the box body 1, and are not connected to other panels, thereby reducing the steps of disassembling and assembling the muffle box and improving the disassembly and assembly efficiency.

[0044] See also Figure 1 As shown, the lower panel 2 can be parallel to the lower side of the top panel 11, the rear panel 3 can be vertically distributed with the box body 1 and the lower panel 2, and the front cover 4 can be parallelly distributed with the rear panel 3. In this way, the box body 1, the lower panel 2, the rear panel 3 and the front cover 4 are combined to form a rectangular muffle box. The box body 1, the lower panel 2, the rear panel 3 and the front cover 4 can all be made of molybdenum plates in one piece, which can effectively reduce the manufacturing cost and is suitable for sintering furnaces with small effective space.

[0045] See also Figure 1As shown, the muffle box also includes a first ear plate 13, and the front and rear sides of the top plate 11 and the side plate 12 are each integrally connected or welded with a first ear plate 13, the first ear plate 13 is located outside the box body 5, and contacts the inner side edge of the rear panel 3 or the front cover plate 4, and the first ear plate 13 located at the rear side of the box body 1 is also fastened to the rear panel 3 by bolts and nuts. In this way, the first ear plate 13 can cover the connection between the top plate 11 and the rear panel 3 or the front cover plate 4, and the connection between the side plate 12 and the rear panel 3 or the front cover plate 4, so as to improve the sealing between the box body 1 and the rear panel 3, and the sealing between the box body 1 and the front cover plate 4, thereby improving the sealing and heat preservation of the muffle box, and the box body 1 is connected to the rear panel 3 through the first ear plate 13, and the connection is outside the box body 5, which can facilitate the staff to disassemble and maintain the box body 1 and the rear panel 3.

[0046] See also Figure 1 and Figure 2 As shown, Figure 2 : is a stereoscopic diagram of the muffle box from the second perspective in the embodiment, the muffle box also includes a second ear plate 21, the left and right sides of the lower panel 2 are each integrally connected or welded with a second ear plate 21, the second ear plate 21 is located outside the box body 5, the second ear plate 21 is in contact with the outer side of the side plate 12, and the second ear plate 21 is fastened to the side plate 12 by bolts and nuts. In this way, the second ear plate 21 can cover the connection between the lower panel 2 and the side plate 12, so as to improve the sealing between the lower panel 2 and the two side plates 12, thereby improving the sealing and heat preservation of the muffle box, and the lower panel 2 is connected to the side plate 12 through the second ear plate 21, and the connection is outside the box body 5, not inside the box body 5 or below the box body 5, which can facilitate the staff to disassemble and maintain the box body 1 and the lower panel 2.

[0047] See also Figure 1 and Figure 3 As shown, Figure 3 : is an exploded view of the box body 5 and the front cover plate 4 in the embodiment. In one embodiment of the front cover plate 4, there is a detachable structure 6 between the front cover plate 4 and the box body 1, and the detachable structure 6 includes a bracket 61 and a support rod 62. The bracket 61 is installed on the outer surface of the side plate 12 by welding or screwing, and the bracket 61 is symmetrically located on the left and right sides of the front cover plate 4. The bracket 61 has a bracket 611, and the notch of the bracket 611 faces upward. The support rod 62 is installed on the outer surface of the front cover plate 4 by welding or screwing, and the two ends of the support rod 62 extend out of the two sides of the front cover plate 4 and are inserted into the two brackets 611. In this way, the two brackets 61 combine to limit the left and right positions of the front cover 4. After the support rod 62 is inserted into the bracket 611, the bracket 611 can limit the front and rear positions of the front cover 4, as well as the up and down positions of the front cover 4. In summary, the bracket 61 and the support rod 62 cooperate to detachably connect the front cover 4 and the box body 1, and can also fix the position of the front cover 4.

[0048] The front cover plate 4 can be connected to the box body 1 only through the detachable structure 6, and is not connected to other plates. This can further reduce the steps of disassembling and assembling the muffle box and improve the disassembly and assembly efficiency.

[0049] See also Figure 1 and Figure 3 As shown, on the basis of the above embodiment, the groove wall of the bracket 611 away from the side plate 12 is inclined, and the groove wall is inclined from the groove bottom to the direction away from the side plate 12, and the end of the support rod 62 has a guide surface 621, and the guide surface 621 is parallel to and in surface contact with the groove wall of the bracket 611 away from the side plate 12. In this way, the groove wall of the bracket 611 away from the side plate 12 is in surface contact with the guide surface 621, which can guide the support rod 62 to slide along the guide surface 621 and insert into the bracket 611, thereby improving the disassembly and assembly efficiency of the front cover 4 and the box body 1.

[0050] See also Figure 2 and Figure 3 As shown, on the basis of the above embodiment, the muffle box also includes a support plate 22, and a support plate 22 is connected to each of the front and rear sides of the lower panel 2. The support plate 22 includes a first plate portion 221 and a second plate portion 222, the first plate portion 221 is horizontally distributed, and is connected to the bottom surface of the lower panel 2 by integral connection, welding, screw connection, etc., one side of the second plate portion 222 is integrally connected or welded to the first plate portion 221, and the other side of the second plate portion 222 extends vertically upward or obliquely away from the side panel 12. Among them, the support plate 22 located on the front side of the lower panel 2 and the two brackets 61 are combined to form an insertion space 7, and the insertion space 7 is used for the front cover plate 4 to be inserted, and the support plate 22 located on the rear side of the lower panel 2 forms a supporting groove 8, and the supporting groove 8 is used to support the rear panel 3. In this way, the first plate portion 221 can be supported on the bottom of the front cover plate 4 or the rear panel 3, support the front cover plate 4 or the rear panel 3, and limit the upper and lower positions of the front cover plate 4 or the rear panel 3. The second plate portion 222 is located on the outside of the front cover plate 4 or the rear panel 3, and can limit the front and rear positions of the front cover plate 4 or the rear panel 3. In summary, the support plate 22 located on the front side of the lower panel 2 can assist the support rod 62 and the bracket 61 to fix the position of the front cover plate 4, thereby enhancing the stability of the connection structure between the front cover plate 4 and the box body 1. The support plate 22 located on the rear side of the lower panel 2 can limit the position of the rear panel 3 and support the rear panel 3, facilitate the assembly of the rear panel 3 and the box body 1, and can also enhance the stability of the connection structure between the rear panel 3 and the box body 1.

[0051] See also Figure 1 As shown, in one embodiment of the front cover plate 4, a handle 41 is welded or screwed on the outer surface of the front cover plate 4, and the number of the handles 41 can be set according to actual needs. In this way, the handle 41 can facilitate the staff to apply force to move the front cover plate 4 up or down to open or close the muffle box.

[0052] See also Figure 2As shown, in one embodiment of the lower panel 2, at least two first reinforcing ribs 23 and second reinforcing ribs 24 are welded or screwed on the bottom surface of the lower panel 2, the first reinforcing ribs 23 extend along the length direction of the lower panel 2, and the second reinforcing ribs 24 extend along the width direction of the lower panel 2. In this way, the first reinforcing ribs 23 and the second reinforcing ribs 24 can improve the transverse tensile strength and the longitudinal tensile strength of the lower panel 2, thereby improving the bearing capacity of the lower panel 2 for the material product, thereby improving the service life of the lower panel 2 and reducing the probability of damage to the lower panel 2.

[0053] In this embodiment, the box body 1, the lower panel 2, the rear panel 3 and the front cover 4 are all made of molybdenum plate in one piece, and the first reinforcing rib 23 and the second reinforcing rib 24 are also made of molybdenum material in the form of strips, which effectively reduces the manufacturing cost.

[0054] See also Figure 1 and Figure 3 As shown, the muffle box further includes a third ear plate 9, and the upper side and the left and right sides of the rear panel 3 and the front cover plate 4 are each integrally connected or welded with a third ear plate 9, and the third ear plate 9 is located outside the box body 5 and extends in a direction away from the box body 1. In this way, the third ear plate 9 can make the rear panel 3 and the front cover plate 4 present a three-dimensional structure, so as to improve the structural strength of the rear panel 3 and the front cover plate 4, thereby improving the service life of the rear panel 3 and the front cover plate 4.

[0055] The bottom edges of the front cover plate 4 and the rear panel 3 may also be integrally connected or welded with a third ear plate 9, or may not be connected with the third ear plate 9. If the bottom edges of the front cover plate 4 or the rear panel 3 are connected with the third ear plate 9, the insertion space 7 or the supporting groove 8 needs to reserve space for the third ear plate 9 accordingly to ensure that the third ear plate 9 can also be inserted into the insertion space 7 or the supporting groove 8 along with the front cover plate 4 or the rear panel 3.

[0056] 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 muffle box, characterized in that: include: The box body comprises a top plate and side plates connected to the left and right sides of the top plate; A lower panel is disposed below the top panel and is detachably connected to the two side panels; A rear panel is detachably connected to the box body, and the rear panel, the box body and the lower panel are combined to form a box body with a front opening; The front cover plate is detachably arranged at the front opening of the box body and is used to close the front opening.

2. A muffle box according to claim 1, characterized in that: It also includes a first ear plate, and the front and rear sides of the top plate and the side plate are each connected to a first ear plate, the first ear plate is located outside the box body and contacts the inner side edge of the rear panel or the front cover plate, and the first ear plate located on the rear side of the box body is also connected to the rear panel.

3. A muffle box according to claim 1, characterized in that: It also includes a second ear plate, and the left and right sides of the lower panel are respectively connected with a second ear plate, the second ear plate is located outside the box, and the second ear plate is in contact with and connected to the outer side surface of the side plate.

4. A muffle box according to claim 1, characterized in that: A detachable structure is provided between the front cover and the box body, and the detachable structure comprises: A bracket is mounted on the outer side of the side plate and is symmetrically located on the left and right sides of the front cover plate. The bracket is provided with a bracket, and the notch of the bracket is arranged upward; The support rod is mounted on the outer side of the front cover plate, and two ends of the support rod extend out of two sides of the front cover plate and are inserted into the two brackets.

5. A muffle box according to claim 4, characterized in that: The groove wall of the bracket is inclined away from the side plate, and the groove wall is inclined from the groove bottom of the bracket toward the direction away from the side plate. The end of the support rod is provided with a guide surface, and the guide surface is parallel to and in surface contact with the groove wall of the bracket away from the side plate.

6. A muffle box according to claim 4, characterized in that: It also includes a support plate, wherein the front and rear sides of the lower panel are each connected with a support plate, and the support plate includes a first plate portion and a second plate portion, wherein the first plate portion is horizontally arranged, one side of the second plate portion is connected to the first plate portion, and the other side of the second plate portion is vertically upward or inclined away from the side plate; Among them, the support plate located on the front side of the lower panel and the two support brackets are combined to form an insertion space, and the insertion space is used for the front cover plate to be inserted. The support plate located on the rear side of the lower panel forms a supporting groove, and the supporting groove is used to support the rear panel.

7. The muffle box according to claim 1, characterized in that: At least two first reinforcing ribs and a second reinforcing rib are also provided on the bottom surface of the lower panel. The first reinforcing rib is extended along the length direction of the lower panel, and the second reinforcing rib is extended along the width direction of the lower panel.

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