Synthesis cavity structure for diamond

Abstract

The utility model relates to the technical field of diamond synthesis, in particular to a synthesis cavity structure for diamond, which comprises an outer frame, an outer gear and a heat insulation layer, the outer frame is connected with the outer gear through a few-tooth gear, the outer gear is connected with an arc-shaped sealing strip through an abutting block, and the arc-shaped sealing strip is in contact with a mounting cover. The mounting cover is connected with a synthesis cavity through a pressing rod; the heat insulation layer is in contact with the synthesis cavity; the sealing device has the advantages that the synthesis cavity and the outer frame are sealed through the mounting cover, the abutting block and the mutual sealing strip are made to move through rotation of the outer gear, the mutual sealing strip is forced to completely seal a gap in the connecting position of the mounting cover and the outer frame, so that the synthesis cavity is sealed, meanwhile, loss of internal heat is avoided through the heat insulation layer, and the service life of the synthesis cavity is prolonged. Therefore, the quality of the synthesized diamond is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to diamond synthesis technical field, concretely is a kind of synthesis cavity structure for diamond. BACKGROUND

[0002] Diamond is a mineral composed of carbon element, is the isomer of graphite, chemical formula is C, also the original of common diamond.Diamond is the hardest substance in nature naturally existing.Diamond can form artificial diamond under high temperature, high pressure, diamond needs to be operated by cavity in high pressure and high temperature in synthesis process.

[0003] Chinese patent CN207856872U discloses a synthetic block for artificial diamond, the synthetic block for artificial diamond includes leaf waxite pipe, dolomite pipe, heating pipe, insulating pipe and graphite column arranged in sequence from outside to inside, characterized in that, sealing ring is further arranged between the leaf waxite pipe and the heating pipe, the sealing ring includes first sealing ring and second sealing ring, the first sealing ring and the second sealing ring are arranged at two ends of the dolomite pipe respectively.The utility model discloses a sealing ring arranged in the inside of artificial diamond synthesis cavity, reduces the heat absorption of artificial diamond hammer, reduces temperature gradient, and improves the quality of artificial diamond.

[0004] However, the synthesis cavity in the above-mentioned patent is not effectively sealed, as a large amount of heat is required during the synthesis of diamond, the heat will be lost in large quantities during the synthesis process, resulting in the quality of the synthesis product. Therefore, the utility model provides a synthesis cavity structure for diamond to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a synthesis cavity structure for diamond to solve the problem of low sealing performance of the synthesis cavity in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a synthesis cavity structure for diamond, comprising: an outer frame, an outer gear and a heat insulation layer, the outer frame is connected with the outer gear through a few-tooth gear, the outer gear is connected with an arc-shaped sealing strip through an abutment block, the arc-shaped sealing strip is in contact with a mounting cover, the mounting cover is connected with a synthesis cavity through a pressing rod, and the heat insulation layer is in contact with the synthesis cavity.

[0007] Preferably, a synthesis cavity is formed in the inner part of the outer frame, a driving element is fixedly connected to the surface of the outer frame, the output end of the driving element penetrates through the few-tooth gear and is fixedly connected with a limiting disc, the few-tooth gear is fixedly connected with the output end of the driving element, the upper end of the outer frame is rotatably connected with the outer gear, and a mounting port is formed in the upper end of the outer frame.

[0008] Preferably, the gear face of the pinion gear is in meshing connection with the external gear, the inner wall of the external gear is fixedly connected with a plurality of abutting blocks, the abutting blocks are semicircular, the surface of each abutting block is in contact with the outer circular surface of an arc-shaped sealing strip, the external gear and the pinion gear are both in rotary connection with the upper end of the outer frame, and the arc-shaped sealing strip is in sliding connection with the upper end of the outer frame.

[0009] Preferably, the inner wall of the mounting cover is in sliding connection with a pressing rod, the lower end of the pressing rod is fixedly connected with a pressing disc, the arc surface of the pressing disc is in contact with an insulating layer and an electric heating tube, and the insulating layer is fixedly connected with the electric heating tube.

[0010] Preferably, the lower end of the mounting cover is in threaded connection with the mounting opening, the outer wall of the heat insulation layer is fixedly connected with the inner wall of the synthetic cavity, the inner wall of the heat insulation layer is fixedly connected with the insulating layer and the electric heating tube, the lower end of the synthetic cavity is fixedly connected with a plug, and the upper surface of the plug is in contact with the insulating layer and the electric heating tube.

[0011] Preferably, the upper surface and the lower surface of the inner arc surface of each arc-shaped sealing strip are in close contact with the lower surface of the mounting cover and the mounting opening respectively.

[0012] Compared with the prior art, the utility model has the advantages that the synthetic cavity and the outer frame are closed by the mounting cover, the abutting blocks and the arc-shaped sealing strips are moved by the rotation of the external gear, the arc-shaped sealing strips completely seal the gap between the mounting cover and the outer frame, the synthetic cavity is sealed, the heat loss is avoided by the heat insulation layer, and the quality of the synthetic diamond is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic view of the overall structure of the utility model;

[0014] Figure 2 It is a three-dimensional schematic view of the arc-shaped sealing strip on one side of the outer frame of the utility model;

[0015] Figure 3 It is a bottom view of the external gear of the utility model;

[0016] Figure 4 It is a schematic view of the inside of the outer frame of the utility model;

[0017] Figure 5 It is a sectional view of the synthetic cavity of the utility model.

[0018] In the drawing: 1, outer frame; 2, driving part; 3, external gear; 4, pinion gear; 5, abutting block; 6, arc-shaped sealing strip; 7, pressing rod; 8, pressing disc; 9, mounting cover; 10, limiting disc; 11, mounting opening; 12, plug; 13, synthetic cavity; 14, heat insulation layer; 15, insulating layer; 16, electric heating tube. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme of the utility model carry out clearly, complete description, and the advantage is more clear and distinct, the following combining with the drawing carries out further detailed explanation to the utility model embodiment. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are within the scope of the utility model protection.

[0020] Please refer to Figures 1 to 5 The utility model provides a technical scheme: a kind of synthesis cavity structure for diamond, including outer frame 1, outer gear 3 and heat insulation layer 14, the inside of outer frame 1 is opened in synthesis cavity 13, carbon column is placed into synthesis cavity 13, diamond can be synthesized by high pressure and high temperature, the surface of outer frame 1 is fixedly connected with driving part 2, the output end of driving part 2 passes through pinion 4 and is fixedly connected with limit disc 10, driving part 2 is convenient for driving pinion 4 rotation, pinion 4 is fixedly connected with the output end of driving part 2, the upper end of outer frame 1 is rotatably connected with outer gear 3, since the tooth surface of pinion 4 is shorter, and then can avoid the problem that outer gear 3 is not easy to control when rotating excessively, the upper end of outer frame 1 is provided with mounting port 11.

[0021] The gear face of pinion 4 is meshedly connected with outer gear 3, when pinion 4 rotates, it drives outer gear 3 to rotate, the inner wall of outer gear 3 is fixedly connected with several abutting blocks 5, abutting block 5 is semicircular, the shape of abutting block 5 can adjust arc-shaped sealing strip 6, the surface of each abutting block 5 is in contact with the outer circular surface of one arc-shaped sealing strip 6, when abutting block 5 gradually approaches the arc surface midpoint of arc-shaped sealing strip 6, arc-shaped sealing strip will gradually move to mounting port 11 due to pressure, outer gear 3 and pinion 4 are rotatably connected with the upper end of outer frame 1, arc-shaped sealing strip 6 is slidably connected with the upper end of outer frame 1, to ensure the smooth operation of the whole device.

[0022] The inner wall of the installation cover 9 is slidably connected with a pressing rod 7, the lower end of the pressing rod 7 is fixedly connected with a pressing disc 8, the upper end of the pressing rod 7 is connectable with the output end of a hydraulic machine or the like, and further provides a high-pressure environment for the synthesis cavity 13 through the pressing disc 8, the arc surface of the pressing disc 8 is in contact with an insulating layer 15 and an electric heating tube 16, the electric heating tube 16 can provide a high-temperature environment for the synthesis cavity 13, the insulating layer 15 is fixedly connected with the electric heating tube 16, the lower end of the installation cover 9 is threadedly connected with the installation opening 11, the material in the synthesis cavity 13 can be replaced by disassembling the installation cover 9, the outer wall of the heat insulation layer 14 is fixedly connected with the inner wall of the synthesis cavity 13, the heat insulation layer 14 can effectively avoid the loss of internal heat, the inner wall of the heat insulation layer 14 is fixedly connected with the insulating layer 15 and the electric heating tube 16, the lower end of the synthesis cavity 13 is fixedly connected with a plug 12, the plug 12 can keep the temperature field in the synthesis cavity 13 stable, the upper surface of the plug 12 is in contact with the insulating layer 15 and the electric heating tube 16, the upper surface and the lower surface of the inner arc surface of the plurality of arc-shaped sealing strips 6 are respectively in close contact with the lower surface of the installation cover 9 and the installation opening 11, the gap between the installation cover 9 and the installation opening 11 can be closed through the arc-shaped sealing strips 6, the hardness of the outer arc surface of the arc-shaped sealing strip 6 is greater than that of the inner arc surface, and the soft part facilitates entering the gap.

[0023] When the device works, the graphite column is placed in the synthesis cavity 13, and then the installation cover 9 is screwed into the installation opening 11, in this process, the driving part 2 is started, so that the outer gear 3 rotates, in the process of screwing the installation cover 9 into the installation opening 11, the arc-shaped sealing strips 6 also gradually seal the installation cover 9 and the installation opening 11, when the sealing is completed, the pressing rod 7 and the electric heating tube 16 can be started to synthesize diamond, in this process, the environment in the synthesis cavity 13 is airtight and the heat is not easy to lose, so that the quality of the synthesized diamond can be ensured.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A synthetic cavity structure for diamond, characterized in that: The synthetic cavity structure for diamond includes: an outer frame (1), an external gear (3), and a heat insulation layer (14). The outer frame (1) is connected to the external gear (3) via a low-tooth gear (4). The external gear (3) is connected to an arc-shaped sealing strip (6) via an abutment block (5). The arc-shaped sealing strip (6) contacts a mounting cover (9). The mounting cover (9) is connected to a synthetic cavity (13) via a pressure rod (7). The heat insulation layer (14) contacts the synthetic cavity (13).

2. The synthetic cavity structure for diamond according to claim 1, characterized in that: The outer frame (1) has a synthesis cavity (13) inside. A driving component (2) is fixedly connected to the surface of the outer frame (1). The output end of the driving component (2) passes through a low-tooth gear (4) and is fixedly connected to a limiting disk (10). The low-tooth gear (4) is fixedly connected to the output end of the driving component (2). The upper end of the outer frame (1) is rotatably connected to the external gear (3). An installation port (11) is opened at the upper end of the outer frame (1).

3. The synthetic cavity structure for diamond according to claim 1, characterized in that: The gear surface of the low-tooth gear (4) meshes with the external gear (3). Several abutment blocks (5) are fixedly connected to the inner wall of the external gear (3). The abutment blocks (5) are semi-circular. The surface of each abutment block (5) contacts the outer arc surface of an arc-shaped sealing strip (6). The external gear (3) and the low-tooth gear (4) are rotatably connected to the upper end of the outer frame (1). The arc-shaped sealing strip (6) is slidably connected to the upper end of the outer frame (1).

4. The synthetic cavity structure for diamond according to claim 1, characterized in that: The inner wall of the mounting cover (9) is slidably connected to a pressure rod (7), and the lower end of the pressure rod (7) is fixedly connected to a pressure plate (8). The arc surface of the pressure plate (8) contacts an insulating layer (15) and an electric heating tube (16), and the insulating layer (15) and the electric heating tube (16) are fixedly connected.

5. A synthetic cavity structure for diamond according to claim 1, characterized in that: The lower end of the mounting cover (9) is threaded to the mounting port (11), the outer wall of the heat insulation layer (14) is fixedly connected to the inner wall of the synthesis chamber (13), the inner wall of the heat insulation layer (14) is fixedly connected to the insulation layer (15) and the electric heating tube (16), and a plug (12) is fixedly connected to the lower end of the synthesis chamber (13), with the upper surface of the plug (12) in contact with the insulation layer (15) and the electric heating tube (16).

6. A synthetic cavity structure for diamond according to claim 1, characterized in that: The upper and lower surfaces of the inner arc surfaces of several of the arc-shaped sealing strips (6) are in close contact with the lower surface of the mounting cover (9) and the mounting opening (11), respectively.

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