A graphite crucible holder for a single crystal furnace

Abstract

The utility model relates to single crystal furnace technical field especially relates to a graphite ladle support for single crystal furnace, including mounting panel and three rotation settings in mounting panel bottom's support leg, the screw rod is rotationally connected with mounting panel bottom, the screw rod is screw thread connection has triangle seat, the same traction plate is rotationally arranged on support leg and triangle seat, the screw rod bottom end fixedly connected with the runner, the side wall of support leg is fixedly connected with concave seat no.

Description

Technical Field

[0001] This utility model relates to the field of single crystal furnace technology, and in particular to a graphite crucible holder for a single crystal furnace. Background Technology

[0002] A single crystal furnace is a device that uses a graphite heater to melt polycrystalline silicon material in an inert gas environment and grows dislocation-free single crystals through Czochralski steps such as seed crystal immersion, fusion welding, and crystal pulling; the crucible support is its key component, used to support the graphite crucible.

[0003] Existing technology, such as the improved graphite crucible holder disclosed in publication number CN217517064U, includes a crucible body, a mounting ring fixed at the bottom of the crucible body, and limiting blocks on both sides; the crucible holder body has an adapting groove in the middle, a limiting plate at the top, a limiting groove in the middle for the limiting blocks to slide, and a mounting plate and components at the bottom. The limiting blocks slide and limit the movement of the groove, facilitating disassembly and preventing displacement.

[0004] However, this technical solution has the following problems in practical use:

[0005] The rotating base is fixed at the bottom of the mounting plate, and the connecting screw is fixed at one end of the connecting plate. The connecting screw is inserted into the rotating hole, and the fixing nuts are threaded to both ends of the connecting screw. By loosening multiple fixing nuts in sequence, the angle of the connecting plate is adjusted, and then tightening multiple fixing nuts in sequence, the position of the connecting plate is limited. However, since the three connecting plates cannot be adjusted in a coordinated manner, they must be rotated and adjusted independently one by one. This is not only cumbersome and time-consuming, but also makes it difficult to ensure that the rotation angle of each plate is consistent, ultimately affecting the overall horizontal stability of the crucible support. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the prior art that the three connecting plates cannot be adjusted in a coordinated manner and need to be rotated and adjusted independently one by one. This is not only cumbersome and time-consuming, but also makes it difficult to ensure that the rotation angle of each plate is consistent, which ultimately affects the overall horizontal stability of the crucible holder. Therefore, this invention proposes a graphite crucible holder for single crystal furnaces.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A graphite crucible holder for a single crystal furnace includes a mounting plate and three legs rotatably mounted on the bottom of the mounting plate. A screw is rotatably connected to the bottom of the mounting plate, and a triangular seat is threaded onto the screw. The same traction plate is rotatably mounted on the legs and the triangular seat. A wheel is fixedly connected to the bottom end of the screw.

[0009] Preferably, a concave seat is fixedly connected to the side wall of the outrigger relative to the screw, and a connecting rod is fixedly connected to the concave seat. One end of the traction plate is rotatably sleeved on the connecting rod.

[0010] Preferably, a second connecting rod is fixedly connected to the triangular seat, and the other end of the traction plate is rotatably sleeved on the second connecting rod.

[0011] Preferably, a side groove is provided on the vertical side wall of the triangular seat, the side groove and the support leg are correspondingly arranged, and the connecting rod is arranged in the side groove.

[0012] Preferably, a concave seat two is fixedly connected to the bottom surface of the mounting plate, and the support leg and the concave seat two are hinged.

[0013] Preferably, a base plate is rotatably provided at the end of the support leg away from the mounting plate.

[0014] Compared with the prior art, the advantages of this utility model are as follows:

[0015] This invention utilizes a traction plate, allowing the operator to rotate a wheel to drive a screw, which in turn moves the triangular support axially. The triangular support pulls the traction plate via a connecting rod, causing the traction plate to rotate around a concave seat and simultaneously push the outriggers to open around the concave seat. This coordinated arrangement of the three outriggers eliminates the cumbersome traditional manual adjustment; a single screw drive is sufficient to unfold the support structure, saving adjustment time and improving efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a graphite crucible holder for a single crystal furnace proposed in this utility model.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of a triangular base in a graphite crucible holder for a single crystal furnace, as proposed in this utility model.

[0019] In the picture:

[0020] 1. Mounting plate; 2. Support leg; 21. Concave seat one; 22. Connecting rod one; 3. Concave seat two; 4. Screw; 5. Triangular seat; 6. Traction plate; 61. Side groove; 62. Connecting rod two; 7. Rotary wheel; 8. Base plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-3A graphite crucible support for a single crystal furnace includes a mounting plate 1 and three rotatably mounted legs 2 at the bottom of the mounting plate 1. The three legs 2 can rotate synchronously and open and close smoothly. A screw 4 is rotatably connected to the bottom of the mounting plate 1, and a triangular seat 5 is threaded onto the screw 4. The same traction plate 6 is rotatably mounted on the legs 2 and the triangular seat 5, and the traction plate 6 converts the rotation of the screw 4 into the rotational motion of the legs 2. A rotating wheel 7 is fixedly connected to the bottom end of the screw 4; the rotating wheel 7 facilitates the operator's rotation of the screw 4.

[0023] A concave seat 21 is fixedly connected to the side wall of the outrigger 2 relative to the screw 4. A connecting rod 22 is fixedly connected to the concave seat 21. One end of the traction plate 6 is rotatably sleeved on the connecting rod 22.

[0024] A connecting rod 62 is fixedly connected to the triangular seat 5, and the other end of the traction plate 6 is rotatably sleeved on the connecting rod 62. The vertical movement of the triangular seat 5 causes the connecting rod 62 to move synchronously. The connecting rod 62 pulls the traction plate 6, and the traction plate 6 rotates around the connecting rod 22 on the concave seat 21, while simultaneously pushing the outrigger 2 to open outward around the concave seat 3.

[0025] A side groove 61 is provided on the vertical side wall of the triangular seat 5. The side groove 61 is correspondingly provided with the support leg 2, and the connecting rod 62 is provided in the side groove 61. The side groove 61 provides movement space for the traction plate 6, ensuring smooth opening and closing of the support leg 2, and at the same time avoiding friction jamming between components under high temperature environment.

[0026] The bottom surface of the mounting plate 1 is fixedly connected to a concave seat 2 3, and the support leg 2 and the concave seat 2 3 are hinged together.

[0027] The end of the support leg 2 away from the mounting plate 1 is rotatably equipped with a base plate 8.

[0028] In the prior art, the crucible body, mounting ring, limiting block, rotating column, crucible support body, and limiting plate are all mounted on the mounting plate 1, and the mounting components and adjustment structure are all mounted on the support leg 2. The working principle of the crucible body, mounting ring, limiting block, rotating column, crucible support body, limiting plate, mounting components, and adjustment structure is based on an improved graphite crucible support disclosed in announcement number CN217517064U, which is prior art and will not be described in detail here.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] Installation preparation: The operator holds the rotating wheel 7 and rotates it clockwise, causing the screw 4 to rotate synchronously. Since the triangular seat 5 is threadedly connected to the screw 4 and cannot rotate due to the limitation of the traction plate 6, the triangular seat 5 moves vertically along the screw 4.

[0031] During the upward movement of the triangular base 5, the traction plate 6 is pulled by the connecting rod 62. The traction plate 6 rotates around the connecting rod 22 on the concave base 21, and at the same time pushes the support leg 2 to open outward around the concave base 3 until the base plate 8 contacts the single crystal furnace base to form a stable support.

[0032] Crucible installation: Place the graphite crucible stably on the mounting plate 1, ensuring that the bottom of the crucible is completely in contact with the surface of the mounting plate 1 to prevent displacement during the melting process.

[0033] The design achieves synchronous opening and closing of the outriggers 2 through screw 4 drive and hinge structure, ensuring support stability while simplifying the operation process.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A graphite crucible support for a single crystal furnace, comprising a mounting plate (1) and three legs (2) rotatably disposed at the bottom of the mounting plate (1), characterized in that, The mounting plate (1) is rotatably connected to a screw (4) at its bottom. A triangular seat (5) is threaded onto the screw (4). The same traction plate (6) is rotatably mounted on the support leg (2) and the triangular seat (5). A rotating wheel (7) is fixedly connected to the bottom end of the screw (4).

2. A graphite crucible holder for a single crystal furnace according to claim 1, characterized in that, The support leg (2) is fixedly connected to a concave seat (21) on the side wall of the screw (4), and a connecting rod (22) is fixedly connected to the concave seat (21). One end of the traction plate (6) is rotatably sleeved on the connecting rod (22).

3. A graphite crucible holder for a single crystal furnace according to claim 2, characterized in that, A connecting rod 2 (62) is fixedly connected to the triangular seat (5), and the other end of the traction plate (6) is rotatably sleeved on the connecting rod 2 (62).

4. A graphite crucible holder for a single crystal furnace according to claim 3, characterized in that, The triangular seat (5) has a side groove (61) on its vertical side wall. The side groove (61) and the support leg (2) are correspondingly arranged, and the connecting rod (62) is arranged in the side groove (61).

5. A graphite crucible holder for a single crystal furnace according to claim 1, characterized in that, The bottom surface of the mounting plate (1) is fixedly connected to a concave seat (3), and the support leg (2) and the concave seat (3) are hinged together.

6. A graphite crucible holder for a single crystal furnace according to claim 1, characterized in that, The support leg (2) is rotatably provided with a base plate (8) at the end away from the mounting plate (1).

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