Rotating multi-layer porous crucible support

Abstract

The invention discloses a rotary multi-layer porous crucible bracket, which relates to a laboratory testing instrument and solves the problem that the crucibles used in the laboratory testing process are difficult to place and cannot meet the requirements of mass testing because they are placed in a disordered manner. The bracket comprises a chassis, a vertical axis, a multi-layer crucible tray arranged on the vertical axis and a bracket cover. The crucible tray comprises an annular tray edge and a tray body connected to the tray edge. The bottom surface of the tray body is higher than the bottom surface of the tray edge, and the upper surface of the tray body protrudes from the tray edge. The bottom of the tray body is provided with a rotating shaft sleeve hole, and the upper surface is provided with a rotating shaft. The tray body is provided with a plurality of holes for placing the crucible. The bottom crucible tray and the chassis, the upper and lower crucible trays, and the top crucible tray and the bracket cover are all detachably sealed. The device is conducive to improving the stability and accuracy of the testing work, and the practical design of the device is conducive to strengthening laboratory management and facilitating laboratory operation.

Description

Technical Field

[0001] The invention relates to a laboratory testing instrument, in particular to a rotary multi-layer porous crucible bracket. Background Art

[0002] Graphite crucible has good thermal conductivity and high temperature resistance. During high temperature use, the thermal expansion coefficient is small, and it has certain strain resistance to rapid heating and cooling. It has strong corrosion resistance to acidic and alkaline solutions and good chemical stability. Graphite crucible products used to melt precious metals such as gold, silver, platinum and other alloys have high temperature resistance, good oxidation resistance and corrosion resistance, and long service life. Therefore, crucibles are often used in laboratory testing projects, but currently crucibles are purchased in bulk and are also scattered in the laboratory. When testing the project, a flat-bottomed plate is needed to hold these crucibles. It is easy to knock over some of the crucibles when taking them, and sometimes they are taken by mistake, especially for large quantities of test samples. A large number of crucibles need to be used at one time. At this time, the above problems will be more prominent. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and proposes a rotating multi-layer porous crucible bracket to solve the problem that the crucibles used in the laboratory testing process are difficult to place and cannot meet the requirements of large-scale testing due to disordered placement.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0005] A rotary multi-layer porous crucible bracket comprises a chassis, a vertical shaft, a multi-layer crucible tray arranged on the vertical shaft and a bracket cover, the vertical shaft is positioned by a vertical shaft sleeve and a vertical shaft fastening screw fixed on the chassis, the crucible tray comprises an annular tray edge and a tray body connected within the tray edge, the bottom surface of the tray body is higher than the bottom surface of the tray edge, and the upper surface of the tray body protrudes from the tray edge, a rotating shaft sleeve hole is arranged at the bottom of the tray body, a rotating shaft is arranged on the upper surface of the tray body, the central axis of the rotating shaft and the rotating shaft sleeve hole coincide and are adapted in shape, the tray body is provided with a plurality of holes for placing the crucible, the bottom crucible tray and the chassis, the upper and lower crucible trays, and the top crucible tray and the bracket cover are all detachably sealed.

[0006] Furthermore, the rotating shaft and the rotating shaft sleeve hole are both arranged at the center of the tray body.

[0007] Furthermore, the tray body and the tray surrounding edge are fixedly connected as one body.

[0008] Furthermore, the inner side wall of the tray periphery is provided with an internal thread, and the side wall of the tray body protruding from the tray periphery is provided with an external thread that can engage with the internal thread.

[0009] Furthermore, the rotating shaft sleeve hole of the bottom crucible tray is rotatably sleeved with the vertical shaft.

[0010] In a further update, the rotating shaft is provided with an external thread, and the rotating shaft sleeve holes of the crucible trays above the bottom crucible tray are all provided with internal threads engaged with the external thread of the rotating shaft.

[0011] Furthermore, a handle is provided on the bracket cover.

[0012] Furthermore, rotating handles are symmetrically arranged on both sides of the tray edge.

[0013] Furthermore, a suction cup is provided at the bottom of the chassis.

[0014] The beneficial effects of the present invention compared with the prior art are as follows.

[0015] 1) This device is sealed with a lid. The use of a crucible holder keeps the crucible to be used clean and eliminates the influence of pollutants on the test data.

[0016] 2) The device is a multi-layer detachable assembly that can place a large number of crucibles in an orderly manner to meet the needs of large-scale inspection and testing.

[0017] 3) The device is rotatable, which is convenient for inspectors to obtain crucibles in different directions and angles at a fixed operating position. The rotatable design combined with the chassis suction buckle of the device allows the crucible bracket to be placed in a fixed position on the test bench and allows inspectors to easily obtain the crucible at multiple angles, which is also beneficial to laboratory management.

[0018] 4) Each layer is porous and has protruding layers. When the layers are sealed and connected, the experimenter can quickly obtain the crucible by using the crucible holder during the test, ensuring the timeliness of the test.

[0019] 5) The crucible holder can be made of various materials, such as plastic, wheat straw, metal materials, etc. It is easy to obtain, low cost, and very convenient to use. The scientific design of the rotatable multi-layer porous structure is conducive to improving the stability and accuracy of the detection work, and the practical design of the device is conducive to strengthening laboratory management and facilitating laboratory operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the graphite crucible bracket described in an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the opened structure of the graphite crucible bracket according to an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the external structure of the crucible tray according to an embodiment of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the bottom of the crucible tray according to an embodiment of the present invention.

[0024] Figure 5 It is a cross-sectional view of the connection between the crucible tray and the bottom plate according to an embodiment of the present invention.

[0025] Figure 6 4 is a cross-sectional view of the crucible tray according to an embodiment of the present invention.

[0026] Among them, 1 is a chassis, 2 is a vertical shaft, 3 is a crucible tray, 31 is a tray edge, 32 is a tray body, 33 is a rotating shaft sleeve hole, 34 is a rotating shaft, 35 is a hole, 36 is a rotating handle, 4 is a bracket cover, 41 is a handle, and 5 is a silicone suction cup. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0028] like Figure 1 , Figure 2 and Figure 5 As shown, it is a rotary multi-layer porous crucible bracket for determining the inert gas melting of O, N and H content in steel. The bracket is made of stainless steel as a whole, including a chassis 1, a vertical shaft 2, a multi-layer crucible tray 3 arranged on the vertical shaft 2 and a bracket cover 4. The vertical shaft 2 is positioned by a vertical shaft sleeve fixed on the chassis 1 and a vertical shaft fastening screw, as shown in FIG. Figure 3 , Figure 4 and Figure 6 As shown, the crucible tray 3 includes an annular tray rim 31 and a tray body 32 arranged in the tray rim 31. The tray rim 31 and the tray body 32 are integrally formed. The bottom surface of the tray body 32 is higher than the bottom surface of the tray rim 31, and the upper surface of the tray body 32 protrudes from the tray rim 31. The inner side surface of the exposed portion of the bottom of the tray rim 31 is provided with an internal thread, and the side wall of the tray body 32 protruding from the tray rim 31 is provided with an external thread that can engage with the internal thread of the tray rim 31.

[0029] A rotating shaft sleeve hole 33 is provided at the center of the bottom of the tray body 32, and a rotating shaft 34 is provided at the center of the upper surface of the tray body 32. The central axes of the rotating shaft 34 and the rotating shaft sleeve hole 33 coincide with each other and are adapted in shape. The rotating shaft 34 is provided with an external thread. The rotating shaft sleeve hole 33 of the bottom crucible tray 3 is rotatably sleeved with the vertical shaft 2, and the rotating shaft sleeve holes 33 of the crucible trays 3 above the bottom crucible tray 3 are all provided with internal threads engaged with the external threads of the rotating shaft.

[0030] The upper surface of the tray body 32 is evenly provided with a number of holes 35 for placing the crucible; the bottom crucible tray 3 and the bottom plate 1, the upper and lower crucible trays 3, and the top crucible tray 3 and the bracket cover 4 are all connected by interlocking threads. In addition, a handle 41 is provided on the bracket cover 4 to facilitate lifting the crucible bracket as a whole; rotating handles 36 are symmetrically provided on both sides of the tray edge 31 to facilitate rotating the crucible tray 3 to remove or install it. A silicone suction cup 5 is provided at the bottom of the bottom plate 1. The silicone suction cup 5 allows the crucible bracket to be placed in a fixed position on the test bench and is not easy to tilt. It also allows inspectors to easily obtain the crucible at multiple angles, and is beneficial to laboratory management.

[0031] This device is a sealed lid type. The use of a crucible holder keeps the unused crucible clean and eliminates the influence of contaminants on the test data. The multi-layer detachable assembly can place a large number of crucibles in an orderly manner to meet the needs of large-scale inspection and testing. The rotatable type makes it convenient for inspectors to obtain crucibles in different directions and angles at a fixed operating position. The rotatable design combined with the chassis suction buckle of the device allows the crucible holder to be placed in a fixed position on the test bench and allows inspectors to easily obtain the crucible at multiple angles, which is also beneficial to laboratory management. Each layer is porous and has a prominent layer. When the layers are sealed and connected, the experimenter can quickly obtain the crucible by using the crucible holder during the test, ensuring the timeliness of the test.

[0032] This device can be promoted to more laboratories for use, or can be provided to laboratories as a supporting device for equipment. It can also be promoted to graphite crucible manufacturers and sold together with crucibles as an integrated product, breaking the traditional bagged sales model of crucibles, which is beneficial to protecting the crucibles from damage. After promotion and application, it can achieve good economic and social benefits.

[0033] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A rotating multi-layer porous crucible support, characterized in that: The invention comprises a chassis (1), a vertical shaft (2), a multi-layer crucible tray (3) arranged on the vertical shaft (2), and a bracket cover (4); the vertical shaft (2) is positioned by a vertical shaft sleeve and a vertical shaft fastening screw fixed on the chassis (1); the crucible tray (3) comprises an annular tray rim (31) and a tray body (32) connected to the tray rim (31); the bottom surface of the tray body (32) is higher than the bottom surface of the tray rim (31), and the upper surface of the tray body (32) protrudes from the tray rim (31); the bottom of the tray body (32) is provided with a rotating shaft sleeve hole (33), and the upper surface of the tray body (32) is provided with a rotating shaft (34). The central axes of the rotating shaft (34) and the rotating shaft sleeve hole (33) coincide with each other and are of the same shape; the tray body (32) is provided with a plurality of holes (35) for placing the crucible; the bottom crucible tray (3) and the bottom plate (1), the upper and lower crucible trays (3), and the top crucible tray (3) and the bracket cover (4) are all detachably sealed; the tray body (32) and the tray rim (31) are fixedly connected to form a whole; the inner side wall of the tray rim (31) is provided with an internal thread, and the side wall of the tray body (32) protruding from the tray rim (31) is provided with an external thread that can engage with the internal thread; The rotating shaft (34) and the rotating shaft sleeve hole (33) are both arranged at the center of the tray body (32); The rotating shaft sleeve hole (33) of the bottom crucible tray (3) is rotatably sleeved with the vertical shaft (2); The rotating shaft (34) is provided with an external thread, and the rotating shaft sleeve holes (33) of the crucible trays (3) above the bottom crucible tray (3) are all provided with internal threads that engage with the external thread of the rotating shaft; and a suction cup is provided at the bottom of the chassis (1).

2. The rotary multi-layer porous crucible support according to claim 1, characterized in that: The bracket cover (4) is provided with a handle (41).

3. The rotary multi-layer porous crucible support according to claim 1, characterized in that: Rotating handles (36) are symmetrically arranged on both sides of the tray periphery (31).

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