Split-type mortise and tenon joint graphite saggar

Abstract

This utility model relates to a split-type mortise and tenon joint graphite sagger, including a base plate with a grid-shaped mating groove. Tenons at the ends of two short side plates are inserted from above into mortises at the ends of two parallel long side plates, forming a rectangular frame. This utility model joins the long and short side plates together using mortises and tenons. An internal support plate is installed through recessed grooves in the middle of the long and short side plates. The base plate is fixed by recessed grooves in the base plate boss. Finally, reinforcement is achieved through adhesive application. This design improves structural stability and reduces graphite adhesive consumption to only 20% of traditional structures, significantly lowering production costs. It also simplifies assembly and improves production efficiency. The mortise and tenon structure itself has excellent positioning and load-bearing capacity. Combined with secondary reinforcement through adhesive application, stability is significantly improved compared to traditional fully coated adhesive structures. The clearance fit achieved through tolerance control avoids assembly deviations caused by full adhesive application, ensuring the dimensional accuracy of the sagger.

Description

Technical Field

[0001] This utility model relates to a graphite box, specifically a split-type graphite box bowl connected by mortise and tenon joints. Background Technology

[0002] Graphite saggers are widely used in metallurgy, ceramics, electronics and other industrial fields as a support container in the sintering and roasting process of materials due to their high temperature resistance, good thermal conductivity and strong chemical stability.

[0003] Existing modular graphite crucibles are typically assembled from multiple parts, relying on the full application of graphite adhesive in the positioning groove to achieve structural stability. This method has obvious drawbacks: on the one hand, the consumption of graphite adhesive is huge, resulting in high production costs; on the other hand, uneven adhesive layer thickness can easily affect assembly accuracy, and the aging of the adhesive layer after long-term high-temperature use may lead to structural loosening and affect service life. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a split mortise and tenon joint graphite crucible, which can effectively save colloid and achieve foundation stability without the need for screws or other fasteners, thereby effectively improving service life while ensuring lower costs.

[0005] To achieve the above objectives, this utility model provides a split-type mortise and tenon joint graphite sagger, comprising a long side plate, a short side plate, and a bottom plate. The bottom plate has a grid-shaped mating groove. The tenons at the ends of the two short side plates are inserted from above into the mortises at the ends of the two parallel long side plates to form a rectangular frame. The two internal support plates are spliced ​​together by a snap-fit ​​joint. The support embedding bosses at the ends of the two internal support plates are respectively embedded in the middle embedding grooves of the long side plates and the middle embedding grooves of the short side plates. The lower edge of the rectangular frame is embedded in the mating groove.

[0006] In addition, the split-type mortise and tenon joint graphite sagger proposed according to the above embodiments of this utility model may also have the following additional technical features: As a further improvement of this utility model, multiple glue dots are equally spaced in the tenon groove, the middle embedding groove of the long side plate, the embedding groove of the bottom plate boss, the middle embedding groove of the short side plate, and the mating groove.

[0007] As a further improvement of this utility model, the bottom plate is provided with long side plate embedding bosses on both sides, and the long side plate embedding bosses are embedded in the bottom plate boss embedding grooves of the long side plates.

[0008] As a further improvement of this utility model, the bottom of the base plate is concave.

[0009] As a further improvement of this utility model, the upper part of the long side plate and the short side plate is beveled.

[0010] As a further improvement of this utility model, the height of the internal support plate is lower than the height of the long side plate and the short side plate.

[0011] By employing the above-described scheme, this utility model possesses at least the following advantages: The long and short side plates are joined together using mortise and tenon joints; the internal support plate is installed via the interlocking grooves in the long and short side plates; the base plate is fixed via the interlocking groove of the base plate boss; and finally, reinforcement is achieved through adhesive application. This not only improves structural stability but also reduces graphite adhesive consumption to only 20% of traditional structures, significantly lowering production costs. Simultaneously, it simplifies the assembly process and improves production efficiency. The mortise and tenon structure itself possesses excellent positioning and load-bearing capacity. Combined with secondary reinforcement through adhesive application, its stability is significantly improved compared to traditional fully coated adhesive structures. The clearance fit achieved through tolerance control avoids assembly deviations caused by full adhesive application, ensuring the dimensional accuracy of the sagger. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of a graphite sagger with a split mortise and tenon joint connection; Figure 2 This is a top view of a graphite sagger with a split mortise and tenon joint connection; Figure 3 This is a three-dimensional view of the base plate of a graphite sagger with a split mortise and tenon joint connection; Figure 4 This is a top view of the base plate of a graphite sagger with a split mortise and tenon joint connection; Figure 5 This is a three-dimensional view of the long side plate structure of a graphite sagger with a split mortise and tenon joint connection; Figure 6 This is a structural diagram of the long side plate of a graphite sagger with a split mortise and tenon joint connection; Figure 7 This is a top view of the long side panel of a graphite sagger with a split mortise and tenon joint connection; Figure 8 yes Figure 7 A magnified view of a portion at point A; Figure 9 This is a structural diagram of the short side plate of a graphite sagger with a split mortise and tenon joint connection; Figure 10 This is a top view of the short side panel of a graphite sagger with a split mortise and tenon joint connection; Figure 11 yes Figure 10 A magnified view of a portion at point A; Figure 12 This is a three-dimensional view of the internal support plate of a split-type mortise and tenon joint graphite sagger; Figure 13 yes Figure 2 A magnified view of a portion at point A; In the diagram: 1. Long side plate, 11. Mortise and tenon, 12. Middle groove of long side plate, 13. Groove of bottom plate boss, 2. Short side plate, 21. Middle groove of short side plate, 22. Tenon, 3. Internal support plate, 31. Support embedded boss, 32. Clasp, 4. Bottom plate, 41. Mating groove, 42. Long side plate embedded boss, 5. Glue application point. Detailed Implementation

[0013] The following description, in conjunction with the accompanying drawings, describes the split-type mortise and tenon joint graphite sagger of this utility model.

[0014] In Embodiment 1 of this application, as Figures 1 to 13 As shown, this split-type mortise and tenon joint graphite crucible (hereinafter referred to as "the present invention") includes a long side plate 1, a short side plate 2, an internal support plate 3, a base plate 4, and an adhesive application point 5. The base plate 4 has a grid-shaped mating groove 41. The tenons 22 at the ends of the two short side plates 2 are inserted from above into the mortises 11 at the ends of the two parallel long side plates 1 to form a rectangular frame. The two internal support plates 3 are joined together by a snap-fit ​​32. The support embedding bosses 31 at the ends of the two internal support plates 3 are respectively embedded in the middle embedding grooves 12 of the long side plate and the middle embedding grooves 21 of the short side plate. The lower edge of the rectangular frame is embedded in the mating groove 41. Long side plate embedding bosses 42 are provided on both sides of the base plate 4, and the long side plate embedding bosses 42 are embedded in the base plate boss embedding grooves 13 of the long side plate 1. The long side plate 1, short side plate 2, internal support plate 3, and base plate 4 are fitted with a clearance fit through tolerance adjustment (fitting tolerance 0.05-0.2mm), allowing the parts to achieve basic positioning and structural stability without the need for adhesives or screws. The ends of the long side plate 1 and the short side plate 2 are spliced ​​with the tenon 22 through the mortise 11. The support embedded bosses 31 at both ends of the internal support plate 3 are respectively matched with the mortise and tenon structure of the long side plate middle embedded groove 12 and the short side plate middle embedded groove 21 of the long side plate 1 and the short side plate 2, which further improves the overall structural strength.

[0015] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 4 , Figure 6 and Figure 9 As shown, multiple adhesive application points 5 are evenly spaced within the tenon 11, the middle embedding groove 12 of the long side plate, the embedding groove 13 of the bottom plate boss, the middle embedding groove 21 of the short side plate, and the mating groove 41. During assembly, adhesive application is only required at 3-6 key stress-bearing locations 5 of the tenon 11, the middle embedding groove 12 of the long side plate, the embedding groove 13 of the bottom plate boss, the middle embedding groove 21 of the short side plate, and the mating groove 41. The adhesive thickness is controlled within 1.5mm, and a high-temperature resistant graphite adhesive is used. After high-temperature baking and curing, secondary reinforcement can be completed.

[0016] To further optimize the working efficiency of this application, the bottom of the base plate 4 is concave. The upper edges of the long side plate 1 and the short side plate 2 are beveled. For easy distinction, the height of the internal support plate 3 is lower than the height of the long side plate 1 and the short side plate 2.

[0017] During assembly, high-temperature resistant graphite adhesive is applied to key points (5) with a thickness controlled at 1.2mm. Following the order of base plate 4, long side plate 1, short side plate 2, and internal support plate 3, each part is sequentially assembled using mortise and tenon joints to ensure tight fit between mating surfaces. The assembled crucible is then placed in a high-temperature oven and baked at 200-500℃ for 2-3 hours to fully cure the graphite adhesive, completing the overall assembly.

[0018] In summary, the split-type mortise and tenon joint graphite sagger of this utility model uses tenons 11 and tenons 22 to join the long side plate 1 and the short side plate 2 together. An internal support plate 3 is installed through the middle embedding grooves 12 and 21 of the long and short side plates. The bottom plate 4 is fixed by the bottom plate boss embedding groove 13, and finally reinforced by adhesive application at the adhesive application point 5. This design improves structural stability and reduces graphite adhesive consumption to only 20% of traditional structures, significantly lowering production costs. It also simplifies the assembly process and improves production efficiency. The mortise and tenon structure itself has excellent positioning and load-bearing capacity. Combined with secondary reinforcement through adhesive application, its stability is significantly improved compared to traditional fully coated adhesive structures. The clearance fit achieved through tolerance control avoids assembly deviations caused by full adhesive application, ensuring the dimensional accuracy of the sagger.

[0019] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A split-type mortise and tenon joint graphite sagger, comprising a long side plate (1), a short side plate (2), and a bottom plate (4), characterized in that, The base plate (4) has a grid-shaped mating groove (41). The tenons (22) at the ends of the two short side plates (2) are inserted from above into the tenons (11) at the ends of the two parallel long side plates (1) to form a rectangular frame. The two internal support plates (3) are spliced ​​together by a snap (32). The support embedding bosses (31) at the ends of the two internal support plates (3) are respectively embedded in the middle embedding groove (12) of the long side plate and the middle embedding groove (21) of the short side plate. The lower edge of the rectangular frame is embedded in the mating groove (41).

2. The split-type mortise and tenon joint graphite sagger as described in claim 1, characterized in that, Multiple glue spots (5) are equally spaced in the tenon (11), the middle embedding groove (12) of the long side plate, the bottom plate boss embedding groove (13), the middle embedding groove (21) of the short side plate, and the mating groove (41).

3. The split-type mortise and tenon joint graphite sagger according to claim 2, characterized in that, The base plate (4) is provided with long side plate embedding bosses (42) on both sides, and the long side plate embedding bosses (42) are embedded in the base plate boss embedding grooves (13) of the long side plate (1).

4. The split-type mortise and tenon joint graphite sagger according to claim 1, characterized in that, The bottom of the base plate (4) is concave.

5. The split-type mortise and tenon joint graphite sagger according to claim 4, characterized in that, The upper part of the long side plate (1) and the short side plate (2) is beveled.

6. The split-type mortise and tenon joint graphite sagger according to claim 1, characterized in that, The height of the internal support plate (3) is lower than the height of the long side plate (1) and the short side plate (2).

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