Leak-proof zirconium tube retort

Abstract

The utility model relates to the sagger technical field, concretely relates to a zirconium pipe sagger of anti -leakage, including sagger and the fixed plate of setting on the step in sagger, the fixed plate is uniformly distributed with a plurality of fixed holes, the bottom of sagger is provided with the positioning hole corresponding with fixed hole, the first pad high sealing ring is assembled between the step and fixed plate, the first embedding groove is seted up on the step, the first pad high sealing ring bottom surface is equipped with the first embedding block of first embedding groove adaptation, the second embedding groove is seted up on the first pad high sealing ring upper surface, the fixed plate lower surface is equipped with the second embedding block with second embedding groove adaptation, the first insertion slot is equipped with on two opposite side walls in the step, the first insertion slot is equipped with on the first insertion block with first insertion slot corresponding place on the fixed plate, the sidewall of first insertion slot and first insertion block is seted up with first fixed slot, the first fixed insertion rod is inserted in first fixed slot. The stability of the device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of sagger technology, specifically to a leak-proof zirconium tube sagger. Background Technology

[0002] In oxygen determination probes, the zirconium tube is a core component, and its fabrication requires a sintering process. Typically, the zirconium tube is inserted into a crucible containing alumina powder. During transport, the zirconium tube is prone to tilting, causing alumina powder to enter. Although a fixing plate with mounting holes inside the crucible is installed to prevent tilting, in practice, alumina powder still easily escapes through the gap between the fixing plate and the step inside the crucible and falls into the zirconium tube. Furthermore, this type of crucible can only accommodate zirconium tubes of one height, requiring crucible replacement when fabricating tubes of different heights, which is inconvenient.

[0003] Chinese patent publication number CN220018177U discloses a zirconium tube crucible for an oxygen determination probe. It features a raised sealing ring between the crucible step and the fixing plate, with its upper and lower ends fitted with grooves that engage with the raised step to improve sealing and prevent alumina powder leakage. The number of raised sealing rings can be adjusted to change the height of the fixing plate to accommodate different zirconium tubes. A sealing ring and protrusions inside the fixing hole tighten the zirconium tube, enhancing the seal. The cover plate is fixed with a magnetic rubber ring to further prevent powder from entering the zirconium tube. However, the raised sealing ring in this patent lacks a locking device; even slight movement could compromise the device's seal.

[0004] To address the aforementioned problems, this application provides a leak-proof zirconium tube crucible. Utility Model Content

[0005] To address the aforementioned issues, a leak-proof zirconium tube crucible is provided. By setting a raised sealing ring between the step and the fixed plate, the embedded grooves on the upper and lower surfaces of the raised sealing ring cooperate with the raised steps of the fixed plate and the step to form a multi-layer seal. At the same time, an insertion fixing structure is added between the step and the fixed plate to enhance the connection stability. This solves the problems of existing raised sealing rings being prone to shaking and failure at high temperatures, leading to alumina powder leakage and unstable position of the fixed plate.

[0006] To address the problems of existing technologies, this utility model provides a leak-proof zirconium tube crucible, comprising a crucible and a fixing plate disposed on a step inside the crucible. The fixing plate has a plurality of fixing holes evenly distributed on it. A positioning hole corresponding to the fixing holes is formed at the bottom of the crucible. A first shim sealing ring is fitted between the step and the fixing plate. A first fitting groove is formed on the step. A first fitting block adapted to the first fitting groove is provided on the bottom surface of the first shim sealing ring. A second fitting groove is formed on the upper surface of the first shim sealing ring. A second fitting block adapted to the second fitting groove is provided on the lower surface of the fixing plate. A first slot is provided on two opposite sidewalls inside the step. A first insert block is provided on the fixing plate at a position corresponding to the first slot. A first fixing groove is formed on the sidewalls of the first slot and the first insert block. A first fixing rod is inserted into the first fixing groove.

[0007] Preferably, a second raised sealing ring is embedded on the first raised sealing ring, and a second slot is provided on the two sides of the inner wall of the first raised sealing ring that are offset from the first insert block, and a second insert block is provided at the corresponding position of the second raised sealing ring and the second slot.

[0008] Preferably, the second insert block and the second slot have a second fixing groove on their sides, and a second fixing rod is inserted into the second fixing groove.

[0009] Preferably, a cover is provided on top of the fixing plate.

[0010] Preferably, magnetic blocks are provided at the four corners of the surface of the fixing plate, and iron sheets are provided at the four corners of the lower surface of the cover corresponding to the positions of the magnetic blocks.

[0011] Preferably, the upper surface of the cover is provided with a gripper for the operator to hold.

[0012] Preferably, the lower surface of the fixing plate is provided with a fixing block adapted to the second slot, and the side of the fixing block is provided with a through groove adapted to the second fixing slot.

[0013] Preferably, the fixing plate has through holes on both sides of the fixing block, so that the operator can remove the second fixing rod from the second fixing slot through the through holes.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. This utility model, by setting a first raised sealing ring between the step and the fixed plate, utilizes the matching structure of the first mounting groove on the step and the first mounting block on the bottom surface of the first raised sealing ring, and the second mounting groove on the upper surface of the first raised sealing ring and the second mounting block on the lower surface of the fixed plate to achieve precise positioning and reduce gaps, forming a multi-layer sealing barrier; at the same time, the cooperation of the first slot in the step, the first insert on the fixed plate and the first fixed insert rod enhances the stability of the connection between the fixed plate and the step, prevents sealing failure due to shaking, and effectively improves the leakage prevention performance of the crucible.

[0016] 2. This utility model embeds a second raised sealing ring on the first raised sealing ring. Through the insertion and cooperation of the second slot on the inner wall of the first raised sealing ring and the second insert of the second raised sealing ring, as well as the locking structure of the second fixed insert rod and the second fixed groove, the gap between the sealing rings is reduced, preventing the second raised sealing ring from shifting laterally or loosening. This allows the two layers of sealing rings to work together, further enhancing the sealing effect inside the crucible.

[0017] 3. This utility model has a cover set above the fixing plate. The iron pieces at the four corners of the lower surface of the cover are tightly attached to the magnetic blocks at the four corners of the surface of the fixing plate by magnetic attraction, which enhances the overall sealing of the sagger and prevents the cover from shifting or loosening. The grab ears on the cover make it easy for the operator to accurately control the position of the cover, achieve quick alignment and fitting, and at the same time provide a reliable force point for disassembling the cover, improving the convenience of operation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a leak-proof zirconium tube crucible according to this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of a leak-proof zirconium tube crucible according to this utility model.

[0020] Figure 3 This is an exploded view of the components of a leak-proof zirconium tube crucible according to this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of a leak-proof zirconium tube crucible according to this utility model.

[0022] Figure 5 This is a three-dimensional schematic diagram of the first and second shim sealing rings of a leak-proof zirconium tube saucer according to this utility model.

[0023] Figure 6 This is an exploded view of the fixing plate and the first shim sealing ring of a leak-proof zirconium tube crucible according to this utility model.

[0024] The following are the labels in the diagram: 1. Sagger; 2. Step; 3. Fixing plate; 4. First raised sealing ring; 5. First mounting groove; 6. First mounting block; 7. Second mounting groove; 8. Second mounting block; 9. First slot; 10. First insert block; 11. First fixing groove; 12. First fixing rod; 13. Second raised sealing ring; 14. Second slot; 15. Second insert block; 16. Second fixing groove; 17. Second fixing rod; 18. Cover. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] Reference Figures 1-6 As shown: A leak-proof zirconium tube crucible includes a crucible 1 and a fixing plate 3 disposed on a step 2 inside the crucible 1. The fixing plate 3 has a plurality of fixing holes evenly distributed on it. The bottom of the crucible 1 has positioning holes corresponding to the fixing holes. A first shim sealing ring 4 is assembled between the step 2 and the fixing plate 3. A first fitting groove 5 is provided on the step 2. A first fitting block 6 adapted to the first fitting groove 5 is provided on the bottom surface of the first shim sealing ring 4. A second fitting groove 7 is provided on the upper surface of the first shim sealing ring 4. A second fitting block 8 adapted to the second fitting groove 7 is provided on the lower surface of the fixing plate 3. A first slot 9 is provided on two opposite side walls inside the step 2. A first insert 10 is provided on the fixing plate 3 at a position corresponding to the first slot 9. A first fixing groove 11 is provided on the side walls of the first slot 9 and the first insert 10. A first fixing rod 12 is inserted into the first fixing groove 11.

[0027] In the prior art, the first raised sealing ring 4 achieves sealing by engaging with the raised step 2 through an insert groove, but no locking mechanism is provided. Therefore, even slight shaking during the high-temperature sintering process can cause the first raised sealing ring 4 to fail. To solve this problem, in this application, the first insert groove 5 on the step 2 is adapted to the first insert block 6 on the bottom surface of the first raised sealing ring 4. When the first raised sealing ring 4 is installed on the step 2, the first insert block 6 can be precisely embedded in the first insert groove 5. This not only achieves the positioning of the first raised sealing ring 4 on the step 2, but also reduces the gap between the step 2 and the first raised sealing ring 4 through the tight cooperation between the two, laying the foundation for a good sealing effect. Meanwhile, the second mounting groove 7 on the upper surface of the first raised sealing ring 4 is adapted to the second mounting block 8 on the lower surface of the fixing plate 3. When the fixing plate 3 is placed on the first raised sealing ring 4, the second mounting block 8 is embedded in the second mounting groove 7, so that the position of the fixing plate 3 on the first raised sealing ring 4 is precisely defined, avoiding the lateral displacement of the fixing plate 3 in the crucible 1, thereby ensuring that the fixing hole on the fixing plate 3 corresponds accurately with the positioning hole at the bottom of the crucible 1, so as to facilitate the subsequent installation of zirconium tubes and other components.

[0028] The first slots 9 on the two opposite sidewalls inside step 2 and the corresponding first inserts 10 on the fixing plate 3 form a plug-in structure. When the fixing plate 3 is installed on step 2, the first inserts 10 are inserted into the first slots 9, forming a preliminary connection and fixation. At this time, the first fixing grooves 11 on the sidewalls of the first slots 9 and the first inserts 10 are aligned. Inserting the first fixing rod 12 into the first fixing groove 11 can firmly fix the first slots 9 and the first inserts 10 together, preventing the fixing plate 3 from shifting or loosening in the vertical direction inside the sagger 1. This plug-in and rod fixing method enhances the stability of the connection between the fixing plate 3 and step 2, ensuring that the fixing plate 3 always maintains a stable position during the use of the sagger 1 and will not shake or shift due to external factors.

[0029] Through the embedded structure of the first raised sealing ring 4, a multi-layer sealing barrier is formed between the step 2, the first raised sealing ring 4, and the fixing plate 3. The material of the first raised sealing ring 4 itself may have a certain degree of elasticity or sealing properties, which can fill the tiny gaps between the components and prevent internal substances from leaking from the connection between the step 2 and the fixing plate 3. The cooperation of the first slot 9, the first insert block 10, and the first fixing rod 12 ensures the firmness of the connection between the fixing plate 3 and the step 2 from a mechanical structure perspective, avoiding the failure of the sealing structure due to loose connection. Thus, the overall leakage prevention function of the crucible 1 is achieved, while ensuring that the fixing holes on the fixing plate 3 always correspond to the positioning holes at the bottom of the crucible 1, providing a guarantee for the stable installation of components such as zirconium tubes and the normal use of the crucible 1.

[0030] Reference Figures 1-5 As shown: A second raised sealing ring 13 is embedded on the first raised sealing ring 4. A second slot 14 is provided on the two sides of the inner wall of the first raised sealing ring 4 that are offset from the first insert block 10. A second insert block 15 is provided at the corresponding position of the second raised sealing ring 13 and the second slot 14.

[0031] The second slots 14, located on the inner walls of the first raised sealing ring 4 and offset from the first insert block 10, form an insertion-fitting structure with the corresponding second insert blocks 15 on the second raised sealing ring 13. When the second raised sealing ring 13 is fitted onto the first raised sealing ring 4, the second insert block 15 can be precisely inserted into the second slot 14. This design not only achieves the positioning and installation of the second raised sealing ring 13 on the first raised sealing ring 4, but also reduces the gap between the sealing rings through the tight insertion of the two, providing a more rigorous sealing barrier for the inside of the crucible 1.

[0032] The engagement of the second slot 14 and the second insert 15 creates a horizontal constraint between the first raised sealing ring 4 and the second raised sealing ring 13, effectively preventing lateral displacement or shaking of the second raised sealing ring 13 on the first raised sealing ring 4. This stable connection ensures that the two sealing rings work together to resist the pressure or impact that may be generated by the material inside the crucible 1, thereby better preventing leakage of material from the connection point of the sealing rings. At the same time, the second slot 14 is positioned offset from the first insert 10, avoiding spatial interference between the two insertion structures. This ensures that the first insert 10 and the first slot 9, and the second insert 15 and the second slot 14, can function independently and effectively, making the entire sealing structure more reliable.

[0033] Reference Figures 1-6 As shown: The second insertion block 15 and the second slot 14 have a second fixing groove 16 on their sides, and a second fixing rod 17 is inserted into the second fixing groove 16.

[0034] When the second raised sealing ring 13 is initially positioned by inserting the second insert 15 into the second slot 14 of the first raised sealing ring 4, the second fixing groove 16 on the side of the second insert 15 and the second slot 14 are just aligned. At this time, inserting the second fixing rod 17 into the second fixing groove 16 can firmly lock the second insert 15 and the second slot 14 together.

[0035] This locking structure effectively prevents the second raised sealing ring 13 from shifting or loosening in any direction on the first raised sealing ring 4. During the use of the crucible 1, regardless of external vibrations, impacts, or pressure changes caused by internal materials, the engagement of the second fixing rod 17 and the second fixing groove 16 ensures that the two sealing rings remain tightly sealed. This robust connection method avoids a decrease in sealing performance due to relative movement between the sealing rings, ensuring the integrity of the sealing barrier.

[0036] Reference Figure 1 and Figure 2 As shown: A cover 18 is provided on the top of the fixing plate 3.

[0037] When the cover 18 is installed above the fixing plate 3, it first forms a closed structure of the internal space of the sagger 1, which together with the sagger 1 body constitutes a complete sealed cavity, effectively preventing the internal material from leaking out. The tight fit between the cover 18 and the fixing plate 3 further enhances the sealing performance, and by covering the fixing holes and related structures on the fixing plate 3, the possibility of material overflowing from the top is reduced.

[0038] The four corners of the surface of the fixing plate 3 are provided with magnetic blocks, and the four corners of the lower surface of the cover 18 are provided with iron plates at positions corresponding to the magnetic blocks.

[0039] When the cover 18 is placed on top of the fixing plate 3, the magnetic attraction between the magnetic block and the iron sheet ensures that the cover 18 fits tightly against the fixing plate 3, thereby enhancing the overall sealing of the crucible 1. This magnetic attraction ensures that during normal use of the crucible 1, the cover 18 will not easily shift or loosen due to external vibrations or slight impacts, effectively preventing internal substances from leaking from the connection between the cover 18 and the fixing plate 3.

[0040] Reference Figure 1 As shown: The upper surface of the cover 18 is provided with a grip for the operator to hold.

[0041] When the cover 18 needs to be installed, the operator can precisely control the direction and position of the cover 18 by gripping the claw, so that the iron sheet on the lower surface of the cover 18 accurately aligns with the magnetic block on the surface of the fixing plate 3. The magnetic attraction is used to achieve quick alignment and tight fit between the cover 18 and the fixing plate 3. When removing the cover 18, the claw provides the operator with a reliable point of leverage, which makes it easy to overcome the attraction between the magnetic block and the iron sheet or other possible resistance, and easily remove the cover 18 from the top of the fixing plate 3. This avoids uneven force, inconvenience of operation, or even damage to parts caused by directly pinching the edge or surface of the cover 18.

[0042] Reference Figure 6 As shown: The lower surface of the fixing plate 3 is provided with a fixing block that is adapted to the second slot 14, and the side of the fixing block is provided with a through groove that is adapted to the second fixing slot 16.

[0043] When the fixing plate 3 is installed inside the sagger 1, the fixing block can be precisely inserted into the second slot 14 on the inner wall of the first raised sealing ring 4. This design not only realizes the direct positioning of the fixing plate 3 and the first raised sealing ring 4, but also reduces the gap between the fixing plate 3 and the first raised sealing ring 4 through the tight cooperation between the fixing block and the second slot 14, providing a more rigorous sealing barrier for the inside of the sagger 1.

[0044] The fixing plate 3 has through holes on both sides of the fixing block, and the operator can remove the second fixing rod 17 from the second fixing groove 16 through the through holes.

[0045] When the crucible 1 needs to be repaired or parts replaced, the operator can directly access the second fixing rod 17 located in the second fixing groove 16 through these two through holes. Since the position of the through holes is aligned with the second fixing groove 16 and the hole diameter is designed to facilitate the insertion of tools or fingers, the operator can easily remove the second fixing rod 17 from the second fixing groove 16, thereby releasing the locking state between the fixing plate 3 and the first shim sealing ring 4.

[0046] Working principle: In the leak-proof zirconium tube crucible 1, the first mounting groove 5 on the step 2 is adapted to the first mounting block 6 on the bottom surface of the first raised sealing ring 4, thereby positioning the first raised sealing ring 4 on the step 2 and reducing the gap; the second mounting groove 7 on the upper surface of the first raised sealing ring 4 is adapted to the second mounting block 8 on the lower surface of the fixing plate 3, limiting the position of the fixing plate 3 and preventing its lateral displacement. The first slot 9 in the step 2 and the first insert 10 on the fixing plate 3 form a plug-in structure. After the first fixing rod 12 is inserted, it can prevent the fixing plate 3 from moving up and down or loosening. The mounting structure of the first raised sealing ring 4 forms a multi-layer sealing barrier. Combined with the plug-in and rod fixing method, the leak-proof function of the crucible 1 is achieved.

[0047] The second slot 14 on the inner wall of the first raised sealing ring 4 is adapted to the second insert 15 of the second raised sealing ring 13, so as to realize the positioning and installation of the second raised sealing ring 13 on the first raised sealing ring 4, reduce the gap between the sealing rings, prevent the second raised sealing ring 13 from lateral displacement or shaking, and the two layers of sealing rings work together to enhance the sealing effect.

[0048] After the second insert 15 and the second fixing groove 16 on the side of the second slot 14 are aligned, the second fixing rod 17 can be inserted to lock them together, preventing the second raised sealing ring 13 from shifting or loosening, and ensuring the integrity of the sealing barrier.

[0049] The cover 18 above the fixing plate 3 and the body of the sagger 1 form a sealed cavity to prevent leakage of internal substances. The cover 18 fits tightly with the fixing plate 3 to reduce the possibility of substances overflowing from the top.

[0050] The magnetic blocks at the four corners of the surface of the fixing plate 3 and the iron pieces at the four corners of the lower surface of the cover 18 are magnetically attracted to each other, so that the cover 18 and the fixing plate 3 are tightly attached to each other, preventing the cover 18 from shifting or loosening and enhancing the sealing performance.

[0051] The grippers on the cover 18 allow operators to precisely control the position of the cover 18 during installation, enabling quick alignment and fit with the fixing plate 3. They also provide leverage points for disassembly, making it easy to remove the cover 18.

[0052] The fixing block on the lower surface of the fixing plate 3 is inserted into the second slot 14 on the inner wall of the first raised sealing ring 4, so as to achieve direct positioning of the fixing plate 3 and the first raised sealing ring 4, reduce the gap between them, and enhance the seal.

[0053] The through holes on both sides of the fixing plate 3 facilitate the operator to remove the second fixing rod 17 from the second fixing groove 16 and release the locking state when inspecting or replacing parts.

[0054] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A leak-proof zirconium tube sagger, comprising a sagger (1) and a fixing plate (3) disposed on a step (2) inside the sagger (1); The fixing plate (3) has a plurality of fixing holes evenly distributed on it, and the bottom of the sagger (1) has a positioning hole corresponding to the fixing holes. The characteristic of this design is that... A first shim sealing ring (4) is fitted between the step (2) and the fixing plate (3); The step (2) is provided with a first mounting groove (5), and the bottom surface of the first raised sealing ring (4) is provided with a first mounting block (6) that matches the first mounting groove (5). The upper surface of the first raised sealing ring (4) is provided with a second mounting groove (7), and the lower surface of the fixing plate (3) is provided with a second mounting block (8) that is adapted to the second mounting groove (7). The step (2) has a first slot (9) on two opposite side walls, and the fixing plate (3) has a first insert (10) at the position corresponding to the first slot (9). The first slot (9) and the first insert (10) have a first fixing groove (11) on their side walls, and a first fixing rod (12) is inserted into the first fixing groove (11).

2. The leak-proof zirconium tube crucible according to claim 1, characterized in that, The first raised sealing ring (4) is fitted with a second raised sealing ring (13). The inner wall of the first raised sealing ring (4) is provided with a second slot (14) on the two sides that are offset from the first insert (10). The second raised sealing ring (13) and the second slot (14) are provided with a second insert (15).

3. The leak-proof zirconium tube crucible according to claim 2, characterized in that, The second insertion block (15) and the second slot (14) have a second fixing groove (16) on their sides, and a second fixing rod (17) is inserted into the second fixing groove (16).

4. The leak-proof zirconium tube crucible according to claim 1, characterized in that, A cover (18) is provided on top of the fixing plate (3).

5. A leak-proof zirconium tube crucible according to claim 4, characterized in that, The fixed plate (3) has magnetic blocks at the four corners of its surface, and the cover (18) has iron sheets at the four corners of its lower surface corresponding to the magnetic blocks.

6. A leak-proof zirconium tube crucible according to claim 4, characterized in that, The upper surface of the cover (18) is provided with a grip for the operator to hold.

7. A leak-proof zirconium tube crucible according to claim 3, characterized in that, The lower surface of the fixing plate (3) is provided with a fixing block that is adapted to the second slot (14), and the side of the fixing block is provided with a through groove that is adapted to the second fixing slot (16).

8. A leak-proof zirconium tube crucible according to claim 7, characterized in that, The fixing plate (3) has through holes on both sides of the fixing block, and the operator can remove the second fixing rod (17) from the second fixing groove (16) through the through holes.

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