Combined crucible for laboratory

Abstract

The utility model relates to the technical field of laboratory equipment, in particular to a combined crucible for a laboratory, which comprises a bottom frame and an annular bearing plate, a concave table is arranged at the upper end of the inner side of the annular bearing plate, and a plurality of positioning grooves distributed at equal angles are formed in the bottom of the concave table. The outer surface of the annular bearing plate is fixedly connected with three positioning seats which are distributed at equal angles, the tops of the inner sides of the positioning seats are fixedly connected with elastic limiting pieces which are obliquely arranged, and the inner side of the concave table is provided with an outer-layer crucible; and the bottom of the upper end of the outer-layer crucible is fixedly connected with a plurality of positioning convex blocks which are distributed at equal angles and are matched with the positioning grooves. According to the combined crucible, under the action of the combined grooves and the limiting convex blocks, the stability of the placed inner container crucible in the using process can be guaranteed under the condition that the position of the outer layer crucible of the combined crucible is fixed.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, specifically a combined crucible for laboratory use. Background Technology

[0002] In the laboratory, methods such as pyrometallurgical enrichment are often used to detect the content of some precious metals, and crucibles are an indispensable piece of equipment in this case.

[0003] Currently, due to differences in heating equipment in different laboratories, the size and shape of the support for the crucible also vary, resulting in unstable support of the crucible on the support, which affects the use by the experimenters. To address this, we propose a modular crucible for laboratory use. Utility Model Content

[0004] The purpose of this invention is to provide a modular crucible for laboratory use, which has the advantages of stable support and convenient replacement. It solves the problem that the support of the crucible on the support is unstable due to the differences in heating equipment in different laboratories, which also leads to differences in the size and shape of the support for the crucible, thus affecting the use by laboratory personnel.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laboratory-grade combined crucible, comprising a base frame and an annular support plate. A recessed platform is provided at the upper end of the inner side of the annular support plate. Multiple equidistantly distributed positioning grooves are formed at the bottom of the recessed platform. Three equidistantly distributed positioning seats are fixedly connected to the outer surface of the annular support plate. An inclined elastic limiting member is fixedly connected to the top of the inner side of each positioning seat. An outer crucible is provided inside the recessed platform. Multiple equidistantly distributed positioning protrusions that fit the positioning grooves are fixedly connected to the bottom of the upper end of the outer crucible. Three equidistantly distributed combined grooves and limiting grooves are formed at the top of the outer crucible. An inner crucible is provided inside the outer crucible. Three limiting protrusions that fit the combined grooves are formed at the bottom of the upper end of the inner crucible.

[0006] Preferably, an adjustment frame is fixedly connected to the top of the base frame, and the adjustment frame has multiple equidistant adjustment holes on its inner side.

[0007] Preferably, a guide sleeve is slidably connected to the lower end of the outer surface of the adjusting frame, a connecting seat is fixedly connected between the two guide sleeves, a partition is fixedly connected to the middle end of the inner cavity of the connecting seat, springs are fixedly connected to both the left and right sides of the partition, a movable block is fixedly connected to the end of the spring away from the partition, a positioning rod adapted to the adjusting hole is fixedly connected to the middle end of the side of the movable block away from the spring, and a push-pull plate is fixedly connected to the rear side of the end of the movable block near the spring.

[0008] Preferably, connecting blocks are fixedly connected to both the left and right ends of the front of the connecting seat, and the front of the connecting blocks is fixedly connected to the rear side of the annular support plate.

[0009] Preferably, the lower end of the elastic limiting member is adapted to the limiting groove.

[0010] Preferably, an auxiliary positioning spring is fixedly connected to the upper end of one side of the elastic limiting member, and the bottom of the auxiliary positioning spring has an arc-shaped structure.

[0011] Preferably, lifting blocks are fixedly connected to both the left and right ends of the top of the inner liner crucible.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. By combining the groove and the limiting protrusion, this utility model ensures that when the inner crucible is moved into the outer crucible, the limiting protrusion at the bottom of the upper end of the inner crucible can enter the corresponding groove. Since the inner crucible and the outer crucible are self-adapted, the stability of the inner crucible during use can be guaranteed when the position of the outer crucible is fixed.

[0014] 2. This utility model, through the arrangement of adjustment holes, guide sleeves, connecting seats, push-pull plates, positioning rods, movable blocks, springs, connecting blocks, and partitions, allows the positioning rod to exit the corresponding adjustment hole when the movable block compresses the spring within the connecting seat via the push-pull plate. Then, the guide sleeve slides up and down on the outer surface of the adjustment frame via the push-pull plate and connecting seat. With the assistance of the connecting block, the height of the annular support plate can be adjusted. After this, the push-pull plate is slowly released, and the spring, via the movable block, drives the positioning rod to insert into the corresponding adjustment hole, thereby fixing the height of the connecting seat and the annular support plate. This facilitates the heating use of different laboratory heating equipment. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention from a second perspective;

[0017] Figure 3 This is a schematic diagram of the mating structure of the annular support plate and the guide sleeve of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the outer crucible, the inner crucible, and the annular support plate of this utility model.

[0019] In the diagram: 1. Base frame; 2. Adjustment frame; 3. Adjustment hole; 4. Guide sleeve; 5. Outer crucible; 6. Lifting block; 7. Inner crucible; 8. Positioning seat; 9. Connecting seat; 10. Push-pull plate; 11. Positioning protrusion; 12. Positioning groove; 13. Recessed platform; 14. Limiting groove; 15. Elastic limiting component; 16. Auxiliary positioning spring; 17. Positioning insert rod; 18. Movable block; 19. Spring; 20. Connecting block; 21. Annular support plate; 22. Combined groove; 23. Limiting protrusion; 24. Partition plate. Detailed Implementation

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The components of this application, including the base frame 1, adjustment frame 2, adjustment hole 3, guide sleeve 4, outer crucible 5, lifting block 6, inner crucible 7, positioning seat 8, connecting seat 9, push-pull plate 10, positioning protrusion 11, positioning groove 12, recess 13, limiting groove 14, elastic limiting component 15, auxiliary positioning spring 16, positioning insert rod 17, movable block 18, spring 19, connecting block 20, annular support plate 21, combined groove 22, limiting protrusion 23, and partition 24, are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] Example 1: Please refer to Figures 1-4 As shown, this utility model provides a technical solution: a laboratory combined crucible, including a base frame 1 and an annular support plate 21. A recessed platform 13 is provided on the upper end of the inner side of the annular support plate 21. Multiple positioning grooves 12 with equal angles are provided on the bottom of the recessed platform 13. Three positioning seats 8 with equal angles are fixedly connected to the outer surface of the annular support plate 21. An inclined elastic limiting member 15 is fixedly connected to the top of the inner side of the positioning seat 8. An outer crucible 5 is provided on the inner side of the recessed platform 13. Multiple positioning protrusions 11 with equal angles and adapted to the positioning grooves 12 are fixedly connected to the bottom of the upper end of the outer crucible 5. Three combined grooves 22 with equal angles and a limiting groove 14 are provided on the top of the outer crucible 5. The lower end of the elastic limiting member 15 is adapted to the limiting groove 14. An inner crucible 7 is provided on the inner side of the outer crucible 5. Three limiting protrusions 23 adapted to the combined grooves 22 are provided on the bottom of the upper end of the inner crucible 7.

[0025] This technical solution: Through the arrangement of the annular support plate 21, positioning protrusion 11, positioning groove 12, and recess 13, when the outer crucible 5 enters the inner side of the annular support plate 21, and with the assistance of the recess 13, the positioning protrusion 11 at the bottom of the upper end of the outer crucible 5 enters the corresponding positioning groove 12, thereby providing lateral restraint for the outer crucible 5. Through the arrangement of the positioning seat 8, elastic limiting member 15, and limiting groove 14, when the outer crucible 5 enters the inner side of the annular support plate 21, it can compress the elastic limiting member 15, causing it to deform. After the outer crucible 5 is fully restrained within the annular support plate 21, the elastic limiting member returns to its original position. The lower end of the limiting member 15 can enter the limiting groove 14, thereby providing longitudinal limiting for the outer crucible 5 and ensuring the connection stability between the outer crucible 5 and the annular support plate 21. Through the combination groove 22 and the limiting protrusion 23, when the inner crucible 7 is driven into the outer crucible 5, the limiting protrusion 23 at the bottom of the upper end of the inner crucible 7 can enter the corresponding combination groove 22. Since the inner crucible 7 and the outer crucible 5 are self-adapted, the stability of the inner crucible 7 during use can be ensured when the position of the outer crucible 5 is fixed. If the inner crucible 7 or the outer crucible 5 is damaged, it can be easily replaced.

[0026] Example 2: Based on Example 1, this utility model is as follows... Figures 1-4 As shown, an adjustment frame 2 is fixedly connected to the top of the base frame 1. Multiple equidistant adjustment holes 3 are opened on the inner side of the adjustment frame 2. A guide sleeve 4 is slidably connected to the lower end of the outer surface of the adjustment frame 2. A connecting seat 9 is fixedly connected between two guide sleeves 4. A partition 24 is fixedly connected to the middle of the inner cavity of the connecting seat 9. Springs 19 are fixedly connected to both the left and right sides of the partition 24. A movable block 18 is fixedly connected to the end of the spring 19 away from the partition 24. A positioning rod 17 adapted to the adjustment hole 3 is fixedly connected to the middle of the side of the movable block 18 away from the spring 19. A push-pull plate 10 is fixedly connected to the rear side of the end of the movable block 18 near the spring 19. Connecting blocks 20 are fixedly connected to both the left and right ends of the front of the connecting seat 9. The front of the connecting block 20 is fixedly connected to the rear side of the annular support plate 21.

[0027] This technical solution, through the arrangement of adjustment hole 3, guide sleeve 4, connecting seat 9, push-pull plate 10, positioning rod 17, movable block 18, spring 19, connecting block 20 and partition plate 24, allows the positioning rod 17 to exit the corresponding adjustment hole 3 as the movable block 18 compresses the spring 19 within the connecting seat 9, driven by the push-pull plate 10. Then, the guide sleeve 4 slides up and down on the outer surface of the adjustment frame 2 via the push-pull plate 10 and connecting seat 9, and with the assistance of the connecting block 20, the height of the annular support plate 21 can be adjusted. After completion, the push-pull plate 10 is slowly released, and the spring 19, via the movable block 18, drives the positioning rod 17 to insert into the corresponding adjustment hole 3, thereby fixing the height of the connecting seat 9 and the annular support plate 21, thus facilitating the heating use of different laboratory heating equipment.

[0028] Example 3: Based on Example 1, this utility model is as follows Figures 1-4 As shown, an auxiliary positioning spring 16 is fixedly connected to the upper end of one side of the elastic limiting member 15, and the bottom of the auxiliary positioning spring 16 has an arc-shaped structure.

[0029] This technical solution: By setting the auxiliary positioning spring 16, it can provide a certain longitudinal constraint on the inner liner crucible 7, further ensuring the stability of the inner liner crucible 7 during use.

[0030] Example 4: Based on Example 1, this utility model is as follows Figures 1-4 As shown, lifting blocks 6 are fixedly connected to both the left and right ends of the top of the inner crucible 7.

[0031] This technical solution facilitates the taking and placing of the inner crucible 7 by setting up the lifting block 6.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0033] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A laboratory composite crucible, comprising a base frame (1) and an annular support plate (21), characterized in that: The upper end of the inner side of the annular support plate (21) is provided with a recessed platform (13). The bottom of the recessed platform (13) is provided with multiple positioning grooves (12) distributed at equal angles. The outer surface of the annular support plate (21) is fixedly connected with three positioning seats (8) distributed at equal angles. The top of the inner side of the positioning seat (8) is fixedly connected with an inclined elastic limiting member (15). The inner side of the recessed platform (13) is provided with an outer crucible (5). The bottom of the upper end of the outer crucible (5) is fixedly connected with multiple positioning protrusions (11) distributed at equal angles and adapted to the positioning grooves (12). The top of the outer crucible (5) is provided with three combined grooves (22) and limiting grooves (14) distributed at equal angles. The inner side of the outer crucible (5) is provided with an inner crucible (7). The bottom of the upper end of the inner crucible (7) is provided with three limiting protrusions (23) adapted to the combined grooves (22).

2. A laboratory composite crucible according to claim 1, characterized in that: An adjustment frame (2) is fixedly connected to the top of the base frame (1), and multiple equidistant adjustment holes (3) are provided on the inner side of the adjustment frame (2).

3. A laboratory composite crucible according to claim 2, characterized in that: The lower end of the outer surface of the adjusting frame (2) is slidably connected to a guide sleeve (4), and a connecting seat (9) is fixedly connected between the two guide sleeves (4). A partition (24) is fixedly connected to the middle end of the inner cavity of the connecting seat (9). Springs (19) are fixedly connected to both the left and right sides of the partition (24). A movable block (18) is fixedly connected to the end of the spring (19) away from the partition (24). A positioning rod (17) adapted to the adjusting hole (3) is fixedly connected to the middle end of the side of the movable block (18) away from the spring (19). A push-pull plate (10) is fixedly connected to the rear side of the end of the movable block (18) close to the spring (19).

4. A laboratory composite crucible according to claim 3, characterized in that: The connecting seat (9) has connecting blocks (20) fixedly connected to both the left and right ends of its front side, and the front of the connecting block (20) is fixedly connected to the rear side of the annular support plate (21).

5. A laboratory composite crucible according to claim 1, characterized in that: The lower end of the elastic limiting member (15) is adapted to the limiting groove (14).

6. A laboratory composite crucible according to claim 1, characterized in that: An auxiliary positioning spring (16) is fixedly connected to the upper end of one side of the elastic limiting member (15), and the bottom of the auxiliary positioning spring (16) is an arc-shaped structure.

7. A laboratory composite crucible according to claim 1, characterized in that: The inner liner crucible (7) has lifting blocks (6) fixedly connected to both the left and right ends of its top.

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