Kiln furniture structure and kiln car with same

Abstract

The utility model belongs to the technical field of sanitary ceramics, and particularly relates to a kiln furniture structure and a kiln car with the same. A kiln furniture structure comprises two supporting beams which are oppositely arranged in parallel, and fixing grooves are formed in the upper surfaces of the supporting beams; the multiple bearing plate adjusting assemblies are arranged at intervals in the length direction of the bearing beams, and the two ends of each bearing plate adjusting assembly are installed on the fixing grooves of the two bearing beams correspondingly; and at least one width adjusting assembly is arranged between every two adjacent bearing plate adjusting assemblies, each width adjusting assembly comprises two width adjusting parts, the two width adjusting parts are correspondingly arranged on the two bearing beams respectively, and the left sides and the right sides of the width adjusting parts abut against the corresponding bearing plate adjusting assemblies. The kiln furniture structure can meet the bearing requirements of articles with different lengths and widths, time and cost are saved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sanitary ceramics technology, and in particular relates to a kiln furniture structure and a kiln car with the kiln furniture structure. Background Technology

[0002] With the upgrading of consumption, consumers' demand for personalized and customized bathroom products is increasing. Taking ceramic basins as an example, the demand for products of different lengths, widths, and shapes is increasing, which brings severe challenges to the firing process of ceramic production. In order to ensure that the products shrink evenly during firing and that the kiln furniture can perfectly support the products, different specifications of products need to use different specifications of kiln furniture for loading and firing.

[0003] Related traditional basin-mounted kiln furniture, such as Figure 9 As shown, these kiln cars typically employ an integrated structure, with flat-plate firing kiln furniture customized to the dimensions of the washbasin. They are often made of silicon carbide or mullite. The kiln car structure includes the kiln car body, perforated columns, supporting beams, and the integrated washbasin firing kiln furniture. This simple structure and short production cycle make it widely used in bathroom fixture manufacturers. However, this type of kiln car is only suitable for manufacturers with stable orders and simple product structures. Once product models and specifications diversify, different sizes of integrated washbasin firing kiln furniture must be prepared for replacement and cross-operation, resulting in extremely poor flexibility. During kiln loading, the kiln furniture needs to be frequently moved, tilted, and swapped to meet production demands.

[0004] In recent years, combined kiln furniture and kiln cars have emerged, such as the Chinese invention patent entitled "A Kiln Furniture and Kiln Car Applied to the Frame Structure of Firing Ceramic Basins," application number "201310719632.9." This invention provides a kiln furniture and kiln car for firing the frame structure of ceramic basins, including a frame, columns, crossbeams, and support beams. Multiple columns are provided on the frame, each with a shelf through-hole. A shelf crossbeam is provided along the width of the frame, with each layer of crossbeams horizontally supported on the shelf through-holes of two columns. Along the length of the frame, each layer has two sets of support beams, supported on two adjacent crossbeams. One or two pairs of support plates are placed between each set of support beams. The cavity formed between each pair of support plates and between each set of support beams is used to load one ceramic basin. Because support plates are installed between each set of support beams, the two front and rear support beams and the two left and right support plates form a support frame, creating the kiln furniture. This support frame has a supporting plane that can support the ceramic products from all sides, preventing them from softening and deforming when heated. This kiln furniture, through specially designed support beams and support plates, allows for flexible adjustment of the width of the pot-shaped kiln furniture. The material is mostly reaction-sintered silicon carbide, produced by extrusion or die casting, and has advantages such as long lifespan, light weight, high high-temperature load capacity, and resistance to rapid heating and cooling. However, it is only suitable for manufacturers with stable orders and a limited number of product specifications. When the product dimensions vary significantly, support plates of different lengths must be prepared to match the product shape for kiln furniture assembly. Furthermore, the procurement and production cycle for this type of kiln furniture and kiln car structure is long, which is not conducive to manufacturers flexibly adjusting production output.

[0005] Based on this, the present invention provides a novel kiln furniture structure and a kiln car equipped with the kiln furniture structure to overcome the above-mentioned defects. Utility Model Content

[0006] One objective of this invention is to provide a kiln furniture structure that, by adjusting the number of length and width adjustment components, can adapt to the support requirements of items of different lengths and widths. If it is necessary to change the size or shape of the product, only the length and width adjustment components need to be adjusted, without having to remanufacture the entire kiln furniture, thus saving time and costs and improving production efficiency.

[0007] This utility model adopts the following technical solution: a kiln furniture structure, comprising:

[0008] Two supporting beams are arranged in parallel and opposite directions, and a fixing groove is formed on the upper surface of each supporting beam;

[0009] Multiple support plate adjustment assemblies are spaced apart along the length of the support beam, and both ends of each support plate adjustment assembly are respectively installed on the fixing grooves of the two support beams. Each support plate adjustment assembly includes a support plate, two main connectors respectively disposed at both ends of the support plate and arranged opposite to each other, and a length adjustment component. The lower surface of each main connector protrudes downwards at the middle position to form a fixing key, which is snapped into the fixing groove of the support beam. The upper surface of each main connector, away from the support plate, protrudes upwards to form a top limiting key. The upper surface of the main connector, excluding the area where the top limiting key is formed, is a support surface. (0 to N) length adjustment components and the end of the support plate are sequentially placed on the support surface of the main connector, where N ≥ 1. The top limiting key, the length adjustment components, and the end of the support plate are sequentially fitted and spliced ​​together.

[0010] Multiple sets of width adjustment components are provided, with at least one set of width adjustment components between two adjacent support plate adjustment components. Each set of width adjustment components includes two width adjustment members, which are respectively disposed on two support beams, and the left and right sides of the width adjustment members abut against the corresponding support plate adjustment components.

[0011] Furthermore, the front and rear ends of the lower surface of the main connector protrude downwards to form a first side limiting key and a second side limiting key. The first side limiting key and the second side limiting key are parallel to the fixing key and are respectively disposed on the front and rear sides of the supporting beam.

[0012] Furthermore, the supporting surface of the upper surface of the main connector is a plane.

[0013] Furthermore, the top limiting key has a convex shape structure;

[0014] One end of the length adjusting member has a concave structure, which matches the shape of the top limiting key; the other end of the length adjusting member has a convex structure.

[0015] The end of the support plate has a concave structure, which matches the convex structure of the length adjustment member, so as to form a sequential splicing connection of the top limiting key, the length adjustment member, and the end of the support plate.

[0016] Furthermore, a dust collection groove is provided on the supporting surface of the main connector. The dust collection groove is located at the end of the supporting surface near the supporting plate and is arranged along the length direction of the supporting beam.

[0017] Furthermore, a connecting groove is provided at the center of the supporting surface of the main connector. The connecting groove is perpendicular to the dust collection groove. One end of the connecting groove is connected to the dust collection groove, and the other end extends to the top limiting key.

[0018] The length adjusting member has a first protrusion at its center that matches the connecting groove, and the first protrusion is installed in the connecting groove of the main connector.

[0019] Furthermore, a second protrusion is formed in the middle of the lower surface of the width adjusting member, which matches the fixing groove on the support beam, and the second protrusion is installed in the fixing groove of the support beam.

[0020] Furthermore, the main connector is an integral structure made of mullite.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] The kiln furniture structure of this invention, by adjusting the number of length and width adjustment components, can adapt to the support needs of items of different lengths and widths. Whether it's small ceramic ornaments or large ceramic slabs, a suitable support method can be found, greatly improving the versatility of the kiln furniture and reducing the hassle of changing kiln furniture due to different item sizes. During production, if it is necessary to change the size or shape of the product, only the length and width adjustment components need to be adjusted, without having to remanufacture the entire kiln furniture, saving time and costs and improving production efficiency.

[0023] Furthermore, the main connecting component is tightly fitted with the fixing groove of the support beam via a fixing key, ensuring a stable connection between the support plate adjustment assembly and the support beam. Simultaneously, the top limiting key's limiting effect on the length adjustment component and the end of the support plate, and the width adjustment component's adjustment of the spacing between adjacent support plate adjustment assemblies, all contribute to the stability of the entire kiln furniture structure during use. This prevents components from loosening or shifting due to the placement of items or the movement of the kiln car, ensuring the safety of the items during firing.

[0024] Another objective of this utility model is to provide a kiln car, the kiln car comprising:

[0025] The kiln car body includes a kiln car base and vertically installed columns at least at the four corners of the kiln car base, and the columns are provided with shelf through holes.

[0026] Square beams are arranged along the width direction of the kiln car structure, and each layer of square beams is horizontally mounted in the shelf through holes of the front and rear columns.

[0027] Multiple sets of kiln furniture structures are arranged in layers and spaced apart on the square beams. The two supporting beams of each set of kiln furniture structures are respectively mounted on the front and rear sides of the column of each layer of square beams. The kiln furniture structure is the kiln furniture structure described above.

[0028] Furthermore, fixed wheels are provided at all four corners of the kiln car base. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of the kiln car in a specific embodiment of the present utility model;

[0031] Figure 2 This is a front view of the kiln car in a specific embodiment of the present utility model;

[0032] Figure 3 This is a top view of the kiln car in a specific embodiment of the present utility model;

[0033] Figure 4 This is a side view of the kiln car in a specific embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the kiln car support plate 2, main connecting piece 3, length adjusting piece 4, and width adjusting piece 5 in a specific embodiment of this utility model;

[0035] Figure 6 This is a schematic diagram of the kiln furniture structure in a specific embodiment of the present invention. Figure 1 ;

[0036] Figure 7 This is a schematic diagram of the kiln furniture structure in a specific embodiment of the present invention. Figure 2 ;

[0037] Figure 8 This is a schematic diagram of the main connecting member structure in a specific embodiment of this utility model;

[0038] Figure 9 This is a schematic diagram of a traditional kiln car structure in the existing technology;

[0039] Among them: 1. Support beam; 10. Fixing groove; 2. Support plate; 3. Main connecting piece; 30. Fixing key; 31. Top limiting key; 32. Supporting surface; 33. First side limiting key; 34. Second side limiting key; 35. Dust collection groove; 36. Connecting groove; 4. Length adjusting piece; 40. First protrusion; 5. Width adjusting piece; 50. Second protrusion; 6. Kiln car base; 7. Column; 8. Square beam; 9. Integrated kiln furniture for firing on a platform. Detailed Implementation

[0040] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] The following is in conjunction with the appendix Figure 1 To be continued Figure 8 The present invention will be described in detail with reference to specific embodiments:

[0042] It should be noted that in this utility model, Figure 3 The length direction of the central support beam 1, that is, the left-right direction along the paper, is the left-right direction mentioned in this utility model; the direction perpendicular to the length of the support beam 1 and along the up-down direction along the paper is the front-back direction mentioned in this utility model.

[0043] like Figure 1-8 As shown, this utility model provides a kiln furniture structure, which includes two supporting beams 1, multiple supporting plate adjustment components, and multiple sets of width adjustment components.

[0044] The two supporting beams 1 are arranged in parallel opposite directions, and their function is to provide basic support for the entire kiln furniture structure. A fixing groove 10 is formed on the upper surface of the supporting beam 1. The fixing groove 10 extends along the length of the supporting beam 1 and is a long strip structure.

[0045] Multiple support plate adjustment assemblies are spaced apart along the length of the support beam 1, and both ends of the support plate adjustment assemblies are respectively installed on the fixing grooves 10 of the two support beams 1, forming rows of spaced support components. The support plate adjustment assembly includes a support plate 2 for supporting items (such as ceramic products or other items that need to be fired), two main connecting members 3 respectively disposed at both ends of the support plate 2 and disposed opposite to each other, and a length adjustment member 4.

[0046] In this embodiment, the lower surface of the main connector 3 protrudes downwards at the middle position to form a fixing key 30. The fixing key 30 is snapped into the fixing groove 30 of the support beam 1, achieving a stable connection and ensuring that the support plate adjustment assembly will not slide freely on the support beam 1. In this embodiment, the fixing key 30 is rectangular. The upper surface of the main connector 3, away from the support plate 2, protrudes upwards to form a top limiting key 31, which is used to limit the position of the length adjustment component 4 and the end of the support plate 2, ensuring that they will not shift during use. The upper surface of the main connector 3, excluding the area where the top limiting key 31 is formed, is a support surface 32. Different numbers (0 to N, N≥1) of the length adjustment component 4 and the end of the support plate 2 are placed sequentially on the support surface 32 of the main connector 3; the top limiting key 31, the length adjustment component 4, and the end of the support plate 2 are sequentially fitted and spliced ​​together. This design allows the length of the support plate 2 in the support plate adjustment assembly to be adjusted according to actual needs. For example, when supporting shorter items, the number of length adjustment pieces 4 can be increased or different specifications of length adjustment pieces 4 can be selected to shorten the length of the support plate 2. When supporting longer items, the number of pieces 4 can be reduced to increase the length of the support plate 2, thereby changing the size of the support surface and the cutout. This design gives the support plate 2 a certain degree of adjustability in the length direction to accommodate items of different sizes. Furthermore, the sequential fitting design of the top limiting key 31, the length adjustment pieces 4, and the ends of the support plate 2 ensures that the top limiting key 31 limits the length adjustment pieces 4 and the ends of the support plate 2, preventing them from shifting during use. In this embodiment, the main connecting piece 3 is an integral structure made of mullite, which can be produced by injection molding, pressing molding, or machine tool grinding and cutting. Meanwhile, in this embodiment, the support plate 2 and the length adjustment component 4 have the same thickness. When assembling the kiln furniture structure, the support plate 2 and the length adjustment component 4 with the same thickness can achieve a tighter splicing, forming a flat bearing plane, which is conducive to ensuring the integrity and stability of the kiln furniture structure.

[0047] At least one set of width adjustment components is provided between two adjacent support plate adjustment components. Each set of width adjustment components includes two width adjustment pieces 5, which are respectively disposed on the two support beams 1, and the left and right sides of the width adjustment pieces 5 abut against the corresponding support plate adjustment components. This design allows for flexible adjustment of the spacing between adjacent support plate adjustment components according to the width of the item, thereby changing the width of the entire kiln furniture structure to accommodate the support requirements of items of different widths. When firing ceramic products of different sizes, the width adjustment components can be adjusted to ensure that the products can be stably placed on the kiln furniture. For example, when firing wider ceramic products, the number of width adjustment pieces 5 can be increased or different specifications of width adjustment pieces 5 can be selected to shorten the distance between two adjacent support plate adjustment components, thereby changing the firing surface and the size of the cutout. It should be noted that the length adjustment piece 4 and the width adjustment components in this utility model can be used individually or in combination of multiple sizes, and different sizes of length adjustment piece 4 and width adjustment piece 5 can also be set.

[0048] The kiln furniture structure of this invention, by adjusting the number of length adjusting parts 4 and width adjusting parts 5, can adapt to the support needs of items of different lengths and widths. Whether it is a small ceramic ornament or a large ceramic slab, a suitable support method can be found, greatly improving the versatility of the kiln furniture and reducing the trouble of having to change different kiln furniture due to different item sizes. During the production process, if it is necessary to change the size or shape of the product, it is only necessary to simply adjust the length adjusting parts 4 and width adjusting parts 5, without having to remanufacture the entire kiln furniture, saving time and costs and improving production efficiency.

[0049] Furthermore, the main connecting component 3 is tightly fitted with the fixing groove 10 of the supporting beam 1 via the fixing key 30, ensuring a stable connection between the supporting plate adjustment assembly and the supporting beam. Simultaneously, the limiting action of the top limiting key 31 on the ends of the length adjusting component 4 and the supporting plate 2, and the adjustment of the spacing between adjacent supporting plate adjustment assemblies by the width adjusting component 5, all ensure the stability of the entire kiln furniture structure during use. This prevents components from loosening or shifting due to the placement of items or the movement of the kiln car, thus guaranteeing the safety of the items during firing.

[0050] Furthermore, in some specific embodiments, the front and rear ends of the lower surface of the main connector 3 protrude downwards to form a first side limiting key 33 and a second side limiting key 34. The first side limiting key 33 and the second side limiting key 34 are parallel to the fixing key 30 and are respectively disposed on the front and rear sides of the supporting beam 1, thereby enhancing the connection stability between the main connector 3 and the supporting beam 1.

[0051] During the use of the kiln furniture, especially when the kiln car moves or is subjected to external forces, the main connecting member 3 may experience lateral displacement. The presence of the first side limiting key 33 and the second side limiting key 34 can effectively prevent the main connecting member 3 from sliding laterally on the support beam 1. For example, when the kiln car enters or leaves the kiln, it may generate some vibration. These two side limiting keys can ensure that the main connecting member 3 remains in the correct position, thereby ensuring the stability of the entire kiln furniture structure and preventing items on the support plate 2 from falling or tilting due to the displacement of the main connecting member 3.

[0052] Meanwhile, for processes such as ceramic firing, the positional stability of the items during firing is crucial. If the kiln structure is unstable, displacement of the items during firing may lead to uneven heating, affecting product quality. These two side limiting keys indirectly ensure the stability of the items during firing by preventing lateral displacement of the main connecting part 3, thus helping to improve the quality and consistency of the fired products.

[0053] Furthermore, in some specific embodiments, the support surface 32 on the upper surface of the main connector 3 is flat. The flat support surface 32 provides a flat support surface for the ends of the length adjusting member 4 and the support plate 2 placed on it. This ensures that the ends of the length adjusting member 4 and the support plate 2 can be placed stably on the main connector 3, avoiding instability caused by uneven support surface 32.

[0054] Furthermore, the top limiting key 31 has a convex shape. One end of the length adjusting member 4 is concave, matching the shape of the top limiting key 31; the other end of the length adjusting member 4 is convex. The end of the support plate 2 has a concave structure, matching the convex structure of the length adjusting member 4, to form a sequentially fitted splicing connection between the ends of the top limiting key 31, the length adjusting member 4, and the support plate 2. In use, the fit between the top limiting key 31, the length adjusting member 4, and the end of the support plate 2 adopts a complementary design of concave and convex shapes, ensuring a tight connection between the top limiting key 31, the length adjusting member 4, and the support plate 2, preventing the support plate 2 from shaking or shifting during use, and ensuring stability.

[0055] Furthermore, in some specific embodiments, a dust collection groove 35 is provided on the supporting surface 32 of the main connector 3. The dust collection groove 35 is located at the end of the supporting surface 32 near the supporting plate and is arranged along the length direction of the supporting beam 1. In this embodiment, the dust collection groove 35 is a semi-cylindrical groove structure, and its length is slightly smaller than the size of the main connector 3. During the ceramic firing process, various dust and debris are generated. For example, a small amount of flaking material may be generated during the firing of the ceramic body, or there may be some dust in the kiln environment itself. The dust collection groove 35 can collect this dust and debris, preventing dust from accumulating on the supporting surface 32, which could affect the fit between components or have a potential impact on product quality. When dust falls into the dust collection groove 35, it can prevent it from scattering everywhere, keeping the surface of the kiln furniture relatively clean, which is conducive to maintaining the cleanliness of the working environment of the kiln furniture.

[0056] In some more specific embodiments, a connecting groove 36 is also provided at the center of the supporting surface 32 of the main connector 3. The connecting groove 36 is perpendicular to the dust collection groove 35. One end of the connecting groove 36 is connected to the dust collection groove 35, and the other end extends to the top limiting key 31.

[0057] The length adjusting member 4 has a first protrusion 40 at its center that matches the connecting groove 36. The first protrusion 40 is installed in the connecting groove 36 of the main connecting member 3 to achieve a snap-fit ​​connection between the length adjusting member 4 and the main connecting member 3, preventing the length adjusting member 4 from shifting or shaking and ensuring the stability of the entire structure.

[0058] Furthermore, in some specific embodiments, a second protrusion 50 is formed at the center of the lower surface of the width adjusting member 5, which matches the fixing groove 10 on the supporting beam 1. The second protrusion 50 is installed in the fixing groove 30 of the supporting beam 1, which can effectively prevent the width adjusting member 5 from shifting and ensure the stability of the kiln furniture structure. In this embodiment, the second protrusion 50 is rectangular in shape.

[0059] Based on the above-mentioned kiln furniture structure, this utility model also provides a kiln car, which includes a kiln car body, a square beam 8, and multiple sets of kiln furniture structures.

[0060] The kiln car body includes a kiln car base 6 and vertical columns 7 installed at the four corners of the kiln car base 6. The columns 7 have multiple layers of shelf through holes that are spaced apart.

[0061] The square beam 8 is arranged along the width direction of the kiln car structure, and each layer of the square beam 8 is horizontally mounted in the shelf through holes of the front and rear columns 7, forming a horizontal connection with the columns 7. This connection uses the shelf through holes as the installation position, and by horizontally mounting, multiple columns 7 are connected together to construct a horizontal frame structure.

[0062] Multiple sets of kiln furniture structures are arranged in layers and spaced apart on the square beams 8. Two supporting beams 1 from each set of kiln furniture structures are respectively mounted on the front and rear sides of the columns 7 of each layer of square beams 8. The supporting beams 1 and square beams 8 are stacked vertically, with the fixing grooves of the supporting beams 1 facing upwards. In the case of multiple layers, the kiln furniture structures of different layers are connected to the square beams 8 through the supporting beams 1, making full use of space and forming a layered load-bearing system. The kiln furniture structure is as described above.

[0063] The general assembly process of the kiln car involves vertically installing columns 7 at the four corners of the kiln car base 6, and horizontally placing each layer of square beams 8 within the through holes of the front and rear columns 7. Next, supporting beams 1 are installed on both the front and rear sides of the columns 7 for each layer of square beams 8. Then, refer to... Figure 6 , 7 On the two corresponding support beams 1, place the main connector 3 and length adjusting piece 4 in sequence. During placement, ensure that the fixing key 30 of the main connector 3 faces downwards and is precisely embedded in the fixing groove 10 of the support beam 1. After placement, adjust the spacing between the two adjacent support beams 1 so that the distance between the corresponding top limiting key 31 of the main connector 3 is equal to or slightly greater than the concave length of the support plate 2. This fine adjustment is crucial to ensuring the subsequent stable installation of the support plate 2 and lays the foundation for the integrity of the entire kiln furniture structure.

[0064] After completing the above steps, place the support plate 2 stably on the main connector 3. At this time, the concave structure of the support plate 2 and the top limiting key 31 of the main connector 3, or the concave structure of the support plate 2 and the convex and concave structures of the length adjusting component 4 and the top limiting key 31 of the main connector 3, form a splicing structure. All components are tightly spliced ​​together to form a planar structure with a hollow center. This structural design is specifically suitable for the kiln loading operation of flat-mounted washbasins, providing a stable and reliable supporting platform for the firing of washbasin products.

[0065] This utility model's kiln car incorporates all the technical solutions of the aforementioned kiln furniture structure and possesses at least all the advantages of the aforementioned kiln furniture structure, which will not be elaborated here.

[0066] Furthermore, the kiln car base 6 is equipped with fixed wheels at all four corners to facilitate the movement of the kiln car.

[0067] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A kiln furniture structure, characterized in that: It includes: Two supporting beams are arranged in parallel and opposite directions, and a fixing groove is formed on the upper surface of each supporting beam; Multiple support plate adjustment assemblies are spaced apart along the length of the support beam, and both ends of each support plate adjustment assembly are respectively installed on the fixing grooves of the two support beams. Each support plate adjustment assembly includes a support plate, two main connectors respectively disposed at both ends of the support plate and arranged opposite to each other, and a length adjustment component. The lower surface of each main connector protrudes downwards at its middle position to form a fixing key, which is snapped into the fixing groove of the support beam. The upper surface of each main connector, away from the support plate, protrudes upwards to form a top limiting key. The upper surface of the main connector, excluding the area where the top limiting key is formed, is a support surface. 0 to N length adjustment components and the end of the support plate are sequentially placed on the support surface of the main connector, where N ≥ 1. The top limiting key, the length adjustment components, and the end of the support plate are sequentially fitted and spliced ​​together. Multiple sets of width adjustment components are provided, with at least one set of width adjustment components between two adjacent support plate adjustment components. Each set of width adjustment components includes two width adjustment members, which are respectively disposed on two support beams, and the left and right sides of the width adjustment members abut against the corresponding support plate adjustment components.

2. The kiln furniture structure according to claim 1, characterized in that: The front and rear ends of the lower surface of the main connector protrude downwards to form a first side limiting key and a second side limiting key. The first side limiting key and the second side limiting key are parallel to the fixing key and are respectively arranged on the front and rear sides of the supporting beam.

3. The kiln furniture structure according to claim 1, characterized in that: The supporting surface on the upper surface of the main connector is a plane.

4. The kiln furniture structure according to claim 1, characterized in that: The top limiting key has a convex shape structure; One end of the length adjusting member has a concave structure, which matches the shape of the top limiting key; the other end of the length adjusting member has a convex structure. The end of the support plate has a concave structure, which matches the convex structure of the length adjustment member, so as to form a sequential splicing connection of the top limiting key, the length adjustment member, and the end of the support plate.

5. The kiln furniture structure according to claim 1, characterized in that: A dust collection groove is provided on the supporting surface of the main connector. The dust collection groove is located at the end of the supporting surface near the supporting plate and is arranged along the length direction of the supporting beam.

6. The kiln furniture structure according to claim 5, characterized in that: A connecting groove is also provided at the center of the supporting surface of the main connector. The connecting groove is perpendicular to the dust collection groove. One end of the connecting groove is connected to the dust collection groove, and the other end extends to the top limiting key. The length adjusting member has a first protrusion at its center that matches the connecting groove, and the first protrusion is installed in the connecting groove of the main connector.

7. The kiln furniture structure according to claim 1, characterized in that: A second protrusion is formed in the middle of the lower surface of the width adjusting member, which matches the fixing groove on the support beam. The second protrusion is installed in the fixing groove of the support beam.

8. The kiln furniture structure according to claim 1, characterized in that: The main connector is an integral structure made of mullite.

9. A kiln car, characterized in that: The kiln car includes: The kiln car body includes a kiln car base and vertically installed columns at least at the four corners of the kiln car base, and the columns are provided with shelf through holes. Square beams are arranged along the width direction of the kiln car structure, and each layer of square beams is horizontally mounted in the shelf through holes of the front and rear columns. Multiple sets of kiln furniture structures are arranged in layers and spaced apart on the square beams. Two supporting beams of each set of kiln furniture structures are respectively erected on the front and rear sides of the column of each layer of square beams. The kiln furniture structure is the kiln furniture structure according to any one of claims 1 to 8.

10. The kiln car according to claim 9, characterized in that: Fixed wheels are provided at all four corners of the kiln car base.

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