Tool for filling crucible
By designing a tool for filling crucibles, a combination structure of telescopic rod and L-shaped plate is used to achieve safe filling of silicon carbide rods, solve the problem of silicon carbide rod damage, improve filling efficiency and reduce production costs.
Patent Information
- Application Number
- CN202520064803.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In the existing technology, silicon carbide rods are easily damaged during the filling process of the crucible, which affects the high-temperature calcination effect and increases maintenance costs. In addition, the existing filling tools are inefficient.
A tool for filling crucibles was designed. It utilizes a combination of telescopic rods and L-shaped plates, along with a support plate and flexible steel rope, to achieve safe filling of silicon carbide rods and prevent damage to the rods. Furthermore, the tool features a locking block and slot structure for easy replacement of damaged L-shaped plates, thus saving production costs.
It improves crucible filling efficiency, prevents damage to silicon carbide rods, shortens filling time, and reduces equipment maintenance and replacement costs.
Smart Images

Figure CN223774864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steelmaking and testing technology, specifically to a tool for filling crucibles. Background Technology
[0002] In steelmaking testing, ultra-low carbon and sulfur analysis is a crucial step, directly impacting the quality control of steel products and the optimization of the production process. To ensure the accuracy and stability of the analytical results, the analytical crucibles must undergo high-temperature calcination before use, typically heating them to 1200°C to effectively remove impurities and residues, preventing these impurities from interfering with the analytical results.
[0003] As the core heating element of a muffle furnace, the stability of the silicon carbide rod's performance and its service life directly affect the effect and cost of high-temperature calcination. Once the silicon carbide rod is damaged, it will not only cause fluctuations in the calcination temperature and affect the accuracy of the analysis results, but may also lead to more serious equipment failures and increase the cost of maintenance and replacement. In order to avoid the above risks and improve the efficiency and safety of crucible filling, we propose a crucible filling tool to solve the above problems. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a tool for filling crucibles, which solves the problems mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0008] A tool for filling crucibles includes a support plate with a rectangular groove open on one side. A telescopic rod is slidably connected to the support plate. A hand grip is welded to the left side of the support plate and is slidably connected to the telescopic rod. An L-shaped plate is movably contacted at the end of the telescopic rod. An anti-slip sleeve is fixedly connected to the telescopic rod. A connecting block is welded to the inner wall of one side of the L-shaped plate. Both sides of the connecting block have slots. A cavity is formed in the telescopic rod. Fixed rods are welded to the inner walls of both sides of the cavity. A locking block is slidably connected to the fixed rod. A spring is welded between one side of the locking block and one side of the inner wall of the cavity. The locking block engages with the corresponding slot. A square block is welded to the other side of the locking block. Fixed pulleys are rotatably connected to the inner walls of both sides of the cavity. A flexible steel rope is fixedly connected to one side of the square block. The end of the flexible steel rope passes over one side of the corresponding fixed pulley and extends to the outside of the telescopic rod, where a pull block is fixedly connected.
[0009] Furthermore, the spring is movably sleeved on the corresponding fixed rod, and an insertion hole is provided on the right inner wall of the cavity, the insertion hole being in movable contact with the connecting block.
[0010] Furthermore, a guide hole is provided on the inner left side of the rectangular groove, and the guide hole is slidably connected to the telescopic rod.
[0011] Furthermore, the bottom inner wall of the rectangular groove is provided with multiple arc-shaped grooves, and one side of each arc-shaped groove is open.
[0012] Furthermore, two circular holes are formed on the left inner wall of the cavity, and the inner walls of the circular holes do not contact the outer sides of the corresponding flexible steel ropes.
[0013] Furthermore, a limiting groove is provided on the card block, and the card block is slidably connected to the corresponding fixing rod through the limiting groove.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the present invention provides a tool for filling crucibles, which has the following beneficial effects:
[0016] This invention involves placing multiple silicon carbide rods into a rectangular groove on a support plate, causing an L-shaped plate to contact the inner left wall of the groove. Holding the anti-slip sleeve on a telescopic rod with one hand and the handheld sleeve with the other, the silicon carbide rods on the support plate are moved to the filling port of the crucible. The telescopic rod is then moved, and through a connecting block, it moves the L-shaped plate, filling the crucible with the silicon carbide rods. This facilitates filling crucibles used in high-temperature muffle furnaces, prevents damage to the silicon carbide rods, shortens filling time, and improves work efficiency. Pulling a lever moves a block via a flexible steel rope, causing the block to slide on a fixed rod and compress a spring, separating the block from its corresponding slot. Damaged L-shaped plates are removed, and new L-shaped plates are fitted into the slots on the connecting block, eliminating the need for complete replacement and saving production costs. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of the other side of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the L-shaped plate and connecting block of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the telescopic rod of this utility model after it has been cut open.
[0021] In the diagram: 1. Support plate; 2. Telescopic rod; 3. Hand grip; 4. L-shaped plate; 5. Anti-slip sleeve; 6. Connecting block; 7. Slot; 8. Cavity; 9. Fixing rod; 10. Locking block; 11. Spring; 12. Square block; 13. Fixed pulley; 14. Flexible steel rope; 15. Pull block; 16. Insertion hole; 17. Guide hole; 18. Arc groove; 19. Rectangular groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example
[0024] like Figure 1-4As shown, an embodiment of this utility model discloses a tool for filling crucibles, including a support plate 1. A rectangular groove 19 with one open side is provided on the support plate 1. A telescopic rod 2 is slidably connected to the support plate 1. A hand grip 3 is welded to the left side of the support plate 1, and the hand grip 3 is slidably connected to the telescopic rod 2. An L-shaped plate 4 is movably contacted at the end of the telescopic rod 2. An anti-slip sleeve 5 is fixedly connected to the telescopic rod 2. A connecting block 6 is welded to the inner wall of one side of the L-shaped plate 4, and slots 7 are provided on both sides of the connecting block 6. The telescopic rod 2 has a cavity 8. Fixed rods 9 are welded to the inner walls of both sides of the cavity 8. A locking block 10 is slidably connected to the fixed rod 9. A spring 11 is welded between one side of the locking block 10 and one side of the inner wall of the cavity 8. The locking block 10 engages with a corresponding locking groove 7. A square block 12 is welded to the other side of the locking block 10. Fixed pulleys 13 are rotatably connected to the inner walls of both sides of the cavity 8. A flexible steel rope 14 is fixedly connected to one side of the square block 12, and the end of the flexible steel rope 14 passes over the corresponding fixed pulley 13. A pull block 15 is fixedly connected to one side of the telescopic rod 2. Multiple silicon carbide rods are placed into the rectangular groove 19 on the support plate 1, so that the L-shaped plate 4 contacts the inner left wall of the rectangular groove 19. Holding the anti-slip sleeve 5 on the telescopic rod 2 with one hand and the handheld sleeve 3 with the other, the silicon carbide rods on the support plate 1 are moved to the filling port of the crucible. Then, the telescopic rod 2 is moved, and the telescopic rod 2 drives the L-shaped plate 4 to move via the connecting block 6. The L-shaped plate 4 fills the crucible with multiple silicon carbide rods, thus facilitating loading. The crucible for high-temperature treatment in the muffle furnace is filled to prevent damage to the silicon carbide rod, shorten the filling time, and improve work efficiency. Pulling block 15 moves block 12 via flexible steel rope 14. Block 12 drives the locking block 10 to slide on the fixed rod 9 and compress the spring 11, so that the locking block 10 separates from the corresponding locking groove 7. The damaged L-shaped plate 4 is removed, and the new L-shaped plate 4 is then locked to the locking block 10 through the locking groove 7 on the connecting block 6, so that the whole replacement is not required, saving production energy costs.
[0025] In some embodiments, the spring 11 is movably sleeved on the corresponding fixing rod 9, and an insertion hole 16 is provided on the inner wall of the right side of the cavity 8, and the insertion hole 16 is in movable contact with the connecting block 6.
[0026] In some embodiments, a guide hole 17 is provided on the inner left side of the rectangular groove 19. The guide hole 17 is slidably connected to the telescopic rod 2. The guide hole 17 serves as a limiting device.
[0027] In some embodiments, a plurality of arc-shaped grooves 18 are provided on the bottom inner wall of the rectangular groove 19, and one side of the arc-shaped groove 18 is provided as an opening.
[0028] In some embodiments, two circular holes are formed on the left inner wall of the cavity 8. The inner wall of the circular holes does not contact the outer side of the corresponding flexible steel rope 14. The flexible steel rope 14 serves as a connection.
[0029] In some embodiments, a limiting groove is provided on the card block 10, and the card block 10 is slidably connected to the corresponding fixing rod 9 through the limiting groove. The setting of the fixing rod 9 plays a limiting role.
[0030] The working principle or structural principle is as follows: During use, multiple silicon carbide rods are placed into the rectangular groove 19 on the support plate 1, so that the L-shaped plate 4 contacts the inner left wall of the rectangular groove 19. Holding the anti-slip sleeve 5 on the telescopic rod 2 with one hand and the handheld sleeve 3 with the other, the silicon carbide rods on the support plate 1 are moved to the filling port of the crucible. Then, the telescopic rod 2 is moved, and the telescopic rod 2, through the connecting block 6, moves the L-shaped plate 4, which fills the crucible with multiple silicon carbide rods. This facilitates filling crucibles used in high-temperature muffle furnace treatments, prevents damage to the silicon carbide rods, and shortens the crucible filling time. In order to improve work efficiency, when the L-shaped plate 4 is damaged after long-term use, the pull block 15 is pulled. The pull block 15 drives the corresponding block 12 to move through the flexible steel rope 14. The block 12 drives the corresponding locking block 10 to move. The locking block 10 slides on the corresponding fixed rod 9 and compresses the spring 11, so that the locking block 10 separates from the corresponding locking groove 7. Then the L-shaped plate 4 is moved to remove the damaged L-shaped plate 4. Then the new L-shaped plate 4 is locked with the locking block 10 through the locking groove 7 on the connecting block 6, so that the whole replacement is not required, saving production energy costs.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tool for filling crucibles, comprising a support plate (1), characterized in that: The support plate (1) has a rectangular groove (19) with one side open. A telescopic rod (2) is slidably connected to the support plate (1). A hand sleeve (3) is welded to the left side of the support plate (1). The hand sleeve (3) is slidably connected to the telescopic rod (2). An L-shaped plate (4) is movably contacted at the end of the telescopic rod (2). An anti-slip sleeve (5) is fixedly connected to the telescopic rod (2). A connecting block (6) is welded to the inner wall of one side of the L-shaped plate (4). A slot (7) is opened on both sides of the connecting block (6). A cavity (8) is opened on the telescopic rod (2). A slot (7) is opened on both sides of the inner wall of the cavity (8). A fixed rod (9) is welded on the fixed rod (9), and a locking block (10) is slidably connected on the fixed rod (9). A spring (11) is welded between one side of the locking block (10) and one side of the inner wall of the cavity (8). The locking block (10) is engaged with the corresponding locking groove (7). A square block (12) is welded on the other side of the locking block (10). Fixed pulleys (13) are rotatably connected on both sides of the inner wall of the cavity (8). A flexible steel rope (14) is fixedly connected to one side of the square block (12). The end of the flexible steel rope (14) passes around one side of the corresponding fixed pulley (13) and extends to the outside of the telescopic rod (2) where a pull block (15) is fixedly connected.
2. The tool for filling crucibles according to claim 1, characterized in that: The spring (11) is movably sleeved on the corresponding fixed rod (9), and an insertion hole (16) is provided on the right inner wall of the cavity (8), and the insertion hole (16) is in movable contact with the connecting block (6).
3. The tool for filling crucibles according to claim 1, characterized in that: A guide hole (17) is provided on the inner left side of the rectangular groove (19), and the guide hole (17) is slidably connected to the telescopic rod (2).
4. The tool for filling crucibles according to claim 1, characterized in that: The bottom inner wall of the rectangular groove (19) is provided with multiple arc-shaped grooves (18), and one side of the arc-shaped groove (18) is open.
5. A tool for filling crucibles according to claim 1, characterized in that: Two circular holes are provided on the left inner wall of the cavity (8), and the inner wall of the circular holes does not contact the outer side of the corresponding flexible steel rope (14).
6. The tool for filling crucibles according to claim 1, characterized in that: The card block (10) has a limiting groove, and the card block (10) is slidably connected to the corresponding fixing rod (9) through the limiting groove.