A culture platform for MPCVD diamond growth

Abstract

The utility model provides a culture platform for MPCVD diamond growth, which belongs to the field of diamond cultivation, and includes: a base, a cylindrical platform body is installed on the base, and an adjustable substrate is slidably connected in the platform body; four limit blocks are fixed on the support ring, the upper end of the platform body is provided with four limit grooves, the upper end of the platform body is rotatably connected with a limit plate, the limit plate and the upper end of the limit block slide against each other, and a moving mechanism is installed at the bottom of the base, and the moving mechanism includes four locking universal wheels installed at the bottom of the base, and the four locking universal wheels are distributed in a rectangular shape, and a hydraulic cylinder is installed on the base, and the hydraulic cylinder is fixedly connected to the bottom of the adjustable substrate. The utility model only needs to rotate the limit plate to lock or unlock the limit block, so that the support ring can be replaced to meet the needs of placing and supporting different seed crystals. The operation is simple and quick, and there is no need to replace the culture platform.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond cultivation, in particular to a cultivation platform for MPCVD diamond growth. Background Art

[0002] Microwave plasma chemical vapor method is a low-cost, high-quality and easy-to-control method for artificially preparing diamonds; its basic principle is to use microwaves to excite plasma in a mixture of low-molecular hydrocarbon gases (such as methane) and hydrogen. In the high-temperature environment of this plasma, carbon ions will be deposited on the seed crystal placed on the substrate table, thereby realizing the artificial growth of single-crystal diamonds.

[0003] The prior art publication number is CN218880045U, which is a growth table and substrate table for MPCVD equipment. The growth table for MPCVD equipment includes at least two split tables, and a heat-conducting structure is arranged between at least two adjacent split tables. The thermal pad is an adjustable thermal pad with adjustable thermal conductivity or a detachable arrangement between the split tables, so as to adjust the thermal conductivity of the thermal structure by replacing the thermal pad or increasing or decreasing the number of thermal pads. The thermal conductivity of the growth table is adjustable, which means that the thermal conductivity efficiency between the growth table and the cooling table is no longer constant, and the thermal conductivity between the growth table and the cooling table can be adjusted according to demand, thereby solving the problem in the prior art that the thermal conductivity between the growth table and the cooling table is constant, and when the power of the MPCVD equipment changes, the temperature of the growth surface of the growth table also changes.

[0004] Since the sizes of seed crystals are different, the support rings in the prior art can only adapt to seed crystal support within a certain range, resulting in poor applicability of the support rings; if it is for other types of seed crystals, different culture platforms need to be replaced; for this reason, the present application proposes a culture platform for MPCVD diamond growth. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a culture platform for MPCVD diamond growth.

[0006] The embodiment of the utility model provides a culture platform for MPCVD diamond growth, comprising:

[0007] A base, on which a cylindrical platform is mounted, and an adjustable substrate is slidably connected to the platform;

[0008] A detachable support ring, four limit blocks are fixed on the support ring, four limit grooves are provided at the upper end of the platform, the limit blocks are slidably connected in the limit grooves to support the support ring, the upper end of the platform is rotatably connected with a limit plate, and the limit plate slides against the upper end of the limit block.

[0009] Furthermore, a moving mechanism is installed at the bottom of the base, and the moving mechanism includes four locking universal wheels installed at the bottom of the base, and the four locking universal wheels are distributed in a rectangular shape.

[0010] Furthermore, a hydraulic cylinder is installed on the base, and the hydraulic cylinder is fixedly connected to the bottom of the adjustment substrate.

[0011] Furthermore, the four limiting grooves are distributed in a ring array at the upper end of the platform.

[0012] Furthermore, a damping shaft is installed on the upper end of the platform, and the limiting plate is fixedly connected to the damping shaft.

[0013] Furthermore, four thread grooves are formed through the support ring, and heating pipes are threadedly connected in the thread grooves.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model can lock or unlock the limit block only by rotating the limit plate, so that the support ring can be replaced to meet the needs of placing supports for different seed crystals. The operation is simple and quick, and there is no need to replace the culture platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a culture platform for MPCVD diamond growth described in an embodiment of the utility model.

[0017] Figure 2 This is a disassembled diagram of a culture platform for MPCVD diamond growth described in an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of a limiting plate in a culture platform for MPCVD diamond growth described in an embodiment of the utility model.

[0019] In the above drawings: 1 base, 2 locking universal wheel, 3 platform, 4 limit block, 5 adjustment substrate, 6 support ring, 7 thread groove, 8 heating pipe, 9 limit groove, 10 limit plate, 11 damping shaft. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides a culture platform for MPCVD diamond growth, comprising:

[0022] A base 1 is provided with a moving mechanism at the bottom of the base 1, and the moving mechanism includes four locking universal wheels 2 installed at the bottom of the base 1, and the four locking universal wheels 2 are distributed in a rectangular shape, so that the base 1 can be moved by the locking universal wheels 2, and then the platform body 3 can be moved; after moving to the desired position, the locking universal wheels 2 can be locked to stably support the base 1, thereby improving the flexibility of the culture platform.

[0023] A cylindrical table 3 is installed on the base 1, and the interior of the cylindrical table 3 is a diamond growth groove; an adjustable substrate 5 is slidably connected inside the table 3; a hydraulic cylinder is installed on the base 1, and the hydraulic cylinder is fixedly connected to the bottom of the adjusting substrate 5. The hydraulic cylinder is not shown in the figure; the output stroke of the hydraulic cylinder is controlled, so that the adjusting substrate 5 is lifted to different heights to control the depth of the diamond growth groove. The depth of the groove can be automatically adjusted according to the different thicknesses of diamonds, so that the seed crystal grows single crystal diamonds of different thicknesses. This is the prior art.

[0024] A detachable support ring 6 has four limit blocks 4 fixed on it. Four limit grooves 9 are provided at the upper end of the table body 3. The four limit grooves 9 are distributed in a ring array at the upper end of the table body 3. The limit blocks 4 are slidably connected in the limit grooves 9 to support the support ring 6. At this time, the upper end of the limit blocks 4 is flush with the upper end of the table body 3.

[0025] The upper end of the table body 3 is rotatably connected to a limiting plate 10, and the limiting plate 10 slides against the upper end of the limiting block 4. A damping shaft 11 is installed on the upper end of the table body 3, and the limiting plate 10 is fixedly connected to the damping shaft 11. The limiting plate 10 can be rotated by the damping shaft 11, and the rotating limiting plate 10 can be positioned so that it is not easy to move; when the limiting plate 10 is not directly opposite to the limiting groove 9, it is convenient to install the limiting block 4 in the limiting groove 9 and to remove it from the limiting groove 9. When the limiting plate 10 is opposite to the limiting groove 9, the limiting block 4 can be locked to achieve locking of the support ring 6.

[0026] As mentioned above, the limiting block 4 can be locked or unlocked by simply rotating the limiting piece 10 so that the supporting ring 6 can be replaced to meet the requirements of placing and supporting different seed crystals. The operation is simple and quick.

[0027] In addition, four thread grooves 7 are provided through the support ring 6, and a heating pipe 8 is threadedly connected to the thread groove 7 to facilitate the assembly and disassembly of the heating pipe 8 and the support ring 6; during the heating process, hot gas is allowed to pass through the heating pipe 8 into the support ring 6 and is located at the bottom of the seed crystal, which is convenient for the growth of single crystal diamond.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A culture platform for MPCVD diamond growth, characterized in that: include: A base (1), wherein a cylindrical platform (3) is mounted on the base (1), and an adjustable substrate (5) is slidably connected inside the platform (3); A detachable support ring (6) is provided with four limit blocks (4) fixed on the support ring (6); the upper end of the platform (3) is provided with four limit grooves (9); the limit blocks (4) are slidably connected in the limit grooves (9) to support the support ring (6); the upper end of the platform (3) is rotatably connected with a limit plate (10); the limit plate (10) and the upper end of the limit block (4) are slidably abutted against each other.

2. A culture platform for MPCVD diamond growth according to claim 1, characterized in that: in: A moving mechanism is installed at the bottom of the base (1), and the moving mechanism comprises four locking universal wheels (2) installed at the bottom of the base (1), and the four locking universal wheels (2) are distributed in a rectangular shape.

3. A culture platform for MPCVD diamond growth according to claim 1, characterized in that: in: A hydraulic cylinder is installed on the base (1), and the hydraulic cylinder is fixedly connected to the bottom of the adjustment substrate (5).

4. A culture platform for MPCVD diamond growth according to claim 1, characterized in that: in: The four limiting grooves (9) are distributed in a ring array at the upper end of the platform (3).

5. The culture platform for MPCVD diamond growth according to claim 1, characterized in that: in: A damping shaft (11) is installed at the upper end of the platform (3), and the limiting plate (10) is fixedly connected to the damping shaft (11).

6. A culture platform for MPCVD diamond growth according to claim 1, characterized in that: in: The support ring (6) is provided with four thread grooves (7) extending therethrough, and the inner threads of the thread grooves (7) are connected to heating pipes (8).

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