Graphite heater frame connected by dovetail grooves
The design of the dovetail groove connection structure and spring cooperation solves the problem of cumbersome disassembly and installation of graphite heaters in single crystal furnaces, and realizes rapid fixing and disassembly, as well as the stability and safety of the heater in single crystal furnace operation.
Patent Information
- Application Number
- CN202423203510.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing graphite heaters are cumbersome to disassemble and install in single crystal furnaces, affecting the efficiency of maintenance and replacement, and the bolt fixing is time-consuming and labor-intensive.
The heater is quickly fixed and disassembled by sliding the fixing block in the dovetail groove and cooperating with the spring. The inclined surface design of the dovetail groove and the squeezing of the limiting block are used to achieve stable clamping and release of the heater.
It enables rapid installation and removal of the heater, improves maintenance and replacement efficiency, and ensures the stability and safety of the heating process.
Smart Images

Figure CN223535288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of graphite heater technology, and in particular to a graphite heater frame with dovetail groove connection. Background Technology
[0002] As the core of the single crystal furnace, the graphite heater is made of high-quality graphite and provides efficient and stable heating performance. Its stable operation depends on the support and positioning of the support frame, which together ensures the high quality and efficiency of the crystal growth process.
[0003] Graphite heaters are typically fixed to a support frame using fasteners such as bolts or nuts to ensure stability and safety during heating. Tightening multiple bolts or nuts one by one is cumbersome and time-consuming. Furthermore, when the heater malfunctions or needs cleaning, these fasteners must be unscrewed one by one, making disassembly tedious and inconvenient for maintenance or replacement. Therefore, we propose a graphite heater frame with a dovetail groove connection. Utility Model Content
[0004] The main objective of this invention is to provide a graphite heater frame with a dovetail groove connection, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A graphite heater frame with a dovetail joint includes a base. Two sets of support plates are disposed on the top of the base. A heater body is movably connected to the inner wall of each support plate. Multiple sets of support rods are fixedly installed on the top of the base, with the front ends of the support rods fixedly connected to the bottom of the support plates. Limit grooves are formed on the outer surfaces of both sets of support plates. Connecting blocks are slidably connected to the inner walls of the limit grooves. A clamping block is fixedly installed on the top of each connecting block and slidably connected to the top of the support plate. The bottom of the connecting block... A support frame is fixedly installed. Two sets of movable plates are slidably connected to the top of the base. Connecting plates are fixedly installed on the opposing surfaces of the two sets of movable plates, and one side of the connecting plate is fixedly connected to one side of the support frame. Two sets of fixing blocks are slidably connected to the top of the two sets of movable plates. Dovetail grooves are opened at the bottom of the two sets of fixing blocks, and the inner wall of the dovetail grooves is narrower at the front and wider at the back. The two sets of dovetail grooves are symmetrically distributed. Limiting blocks are fixedly installed on the top of the two sets of movable plates, and the limiting blocks are slidably connected to the inner wall of the dovetail grooves.
[0007] Preferably, the bottom of both sets of movable plates is fixedly installed with sliders, and the top of the base is provided with two sets of sliding grooves, with the sliders slidably connected to the inner wall of the sliding grooves.
[0008] Preferably, two sets of springs are fixedly connected to the inner sidewalls of both sets of slides, and the front ends of the springs are fixedly connected to the outer surface of the slider.
[0009] Preferably, the top of both sets of movable plates is provided with guide grooves, the inner walls of the two sets of guide grooves are movably connected to two sets of guide blocks, and the top of the guide blocks is fixedly connected to the bottom of the fixing block.
[0010] Preferably, the heater body is a disc-type graphite heater.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] In this invention, by setting a fixing block with a dovetail groove that is narrower at the front and wider at the back at its bottom, the heater body is placed on the support plate, and the two sets of fixing blocks are pushed in opposite directions. Under the pressure of the dovetail groove, the two sets of limiting blocks gradually approach each other. Then, with the cooperation of the movable plate, connecting plate, support frame and connecting block, the two sets of clamping blocks approach the heater body. When the dovetail groove and the limiting block are fully engaged, the two sets of clamping blocks tightly clamp the heater body, thus fixing the heater body. When the heater body needs to be disassembled for maintenance or replacement, the two sets of fixing blocks are pushed in opposite directions to remove the fixing blocks. Then, with the cooperation of the spring, the two sets of movable plates are reset, and the clamping blocks are released from the clamping and fixing of the heater body, so that the heater body can be easily removed. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a graphite heater frame with a dovetail groove connection according to the present invention.
[0014] Figure 2 This is a schematic diagram of the base structure of a graphite heater frame with a dovetail groove connection according to the present invention.
[0015] Figure 3 This is a schematic diagram of the movable plate structure of a graphite heater frame with a dovetail groove connection according to the present invention.
[0016] Figure 4 This is a schematic diagram of the fixing block and limiting block structure of a graphite heater frame with a dovetail groove connection according to this utility model.
[0017] In the diagram: 1. Base; 2. Support rod; 3. Support plate; 4. Clamping block; 5. Heater body; 6. Limiting block; 7. Connecting plate; 8. Movable plate; 9. Support frame; 10. Connecting block; 11. Slide groove; 12. Spring; 13. Limiting groove; 14. Guide groove; 15. Sliding block; 16. Fixing block; 17. Dovetail groove; 18. Guide block. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example
[0019] like Figure 1-4 As shown, a graphite heater frame with a dovetail joint includes a base 1. Two sets of support plates 3 are disposed on the top of the base 1. A heater body 5 is movably connected to the inner wall of the support plates 3. Multiple sets of support rods 2 are fixedly installed on the top of the base 1, and the front ends of the support rods 2 are fixedly connected to the bottom of the support plates 3. Limiting grooves 13 are formed on the outer surfaces of both sets of support plates 3. Connecting blocks 10 are slidably connected to the inner walls of the limiting grooves 13. A clamping block 4 is fixedly installed on the top of the connecting block 10 and slidably connected to the top of the support plate 3. The bottom of the connecting block 10... A support frame 9 is fixedly installed on the base 1. Two sets of movable plates 8 are slidably connected to the top of the base 1. Connecting plates 7 are fixedly installed on the disjoint surfaces of the two sets of movable plates 8. One side of the connecting plate 7 is fixedly connected to one side of the support frame 9. Two sets of fixing blocks 16 are slidably connected to the top of the two sets of movable plates 8. Dovetail grooves 17 are opened at the bottom of the two sets of fixing blocks 16. The inner wall of the dovetail grooves 17 is narrow at the front and wide at the back. The two sets of dovetail grooves 17 are symmetrically distributed. Limiting blocks 6 are fixedly installed on the top of the two sets of movable plates 8. The limiting blocks 6 are slidably connected to the inner wall of the dovetail grooves 17.
[0020] By setting support rod 2 to connect base 1 and support plate 3 together, a frame supporting heater body 5 is formed. The two sets of support plates 3 are placed symmetrically, and the bottom end of heater body 5 can be just locked into the recesses of the two sets of support plates 3. By opening limiting grooves 13 on the support plates 3, the two sets of connecting blocks 10 can slide towards or away from each other along the inner wall of the limiting grooves 13, thereby driving the clamping block 4 at the top of the connecting block 10 to move closer or further away from heater body 5. The clamping block 4 is indirectly connected to the movable plate 8 through the connecting block 10, support frame 9 and connecting plate 7. When the movable plate 8 moves, the clamping block 4 will move synchronously. By setting the dovetail groove 17 to be narrow at the front and wide at the back, and making the two sets of dovetail grooves The dovetail grooves 17 are symmetrically distributed. The inclined surface of the dovetail groove 17 fits against the inclined surface of the fixing block 16, pushing the two sets of fixing blocks 16 towards each other. This causes the narrower end of the dovetail groove 17 to gradually fit against the limiting block 6, thereby continuously squeezing the limiting block 6. This causes the two sets of limiting blocks 6 to move closer to each other, which in turn drives the two sets of movable plates 8 to move closer to each other. This, in turn, causes the two sets of clamping blocks 4 to move closer to the heater body 5. When the opposing surfaces of the two sets of fixing blocks 16 fit together, the two sets of limiting blocks 6 fit together. At this time, the limiting block 6 and the dovetail groove 17 are completely tenoned together. At the same time, the two sets of clamping blocks 4 clamp and fix the heater body 5, thereby achieving the purpose of quickly fixing the heater body 5 and ensuring that the heater body 5 maintains stability and safety during the heating process.
[0021] Furthermore, sliders 15 are fixedly installed at the bottom of both sets of movable plates 8, and two sets of sliding grooves 11 are opened at the top of the base 1, with sliders 15 slidably connected to the inner wall of the sliding grooves 11.
[0022] By installing a slider 15 at the bottom of the movable plate 8, the slider 15 can slide synchronously along the inner wall of the groove 11 when the movable plate 8 moves, thereby increasing the stability of the movement of the movable plate 8.
[0023] Furthermore, two sets of springs 12 are fixedly connected to the inner sidewalls of the two sets of slide grooves 11, and the front end of the spring 12 is fixedly connected to the outer surface of the slider 15.
[0024] By setting spring 12, slider 15 and slide groove 11 are connected together. When fixed blocks 16 move towards each other, under the compression of dovetail groove 17, the two sets of limiting blocks 6 move towards each other, which in turn drives the two sets of movable plates 8 to move towards each other. The two sets of movable plates 8 then drive the two sets of sliders 15 to move towards each other, which in turn drives the front end of spring 12 to move, so that spring 12 is stretched and stores potential energy. When it is necessary to repair or replace heater body 5, the two sets of fixed blocks 16 are pushed in opposite directions, so that dovetail groove 17 gradually separates from limiting block 6. After the squeezing force of dovetail groove 17 on limiting block 6 disappears, the potential energy stored in spring 12 is released, which in turn drives movable plate 8 to rebound. Then, under the transmission of connecting plate 7, support frame 9 and connecting block 10, the two sets of clamping blocks 4 move away from each other and separate from the outer surface of heater body 5, thereby releasing the clamping and fixing of heater body 5, so that the staff can quickly remove heater body 5.
[0025] Furthermore, guide grooves 14 are provided on the top of both sets of movable plates 8, and guide blocks 18 are movably connected to the inner walls of both sets of guide grooves 14, and the bottom of a fixing block 16 is fixedly connected to the top of the guide block 18.
[0026] By setting a guide block 18 at the bottom of the fixed block 16, the fixed block 16 will move and drive the guide block 18 to move synchronously along the inner wall of the guide groove 14. Thus, under the limit of the guide groove 14, the fixed block 16 can move in a straight line.
[0027] Furthermore, the heater body 5 is a disc-type graphite heater;
[0028] Heating efficiency is improved by setting the heater body 5 as a disc graphite heater.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A graphite heater frame with dovetail groove connection, comprising a base (1), characterized in that: The base (1) has two sets of support plates (3) on its top. The inner wall of the support plate (3) is movably connected to the heater body (5). The base (1) has multiple sets of support rods (2) fixedly installed on its top. The front end of the support rods (2) is fixedly connected to the bottom of the support plate (3). Limiting grooves (13) are opened on the outer surface of both sets of support plates (3). Connecting blocks (10) are slidably connected to the inner wall of the limiting grooves (13). Clamping blocks (4) are fixedly installed on the top of the connecting blocks (10) and are slidably connected to the top of the support plate (3). A support frame (9) is fixedly installed on the bottom of the connecting blocks (10). The base (1) is slidably connected to two sets of movable plates (8). Connecting plates (7) are fixedly installed on the surfaces of the two sets of movable plates (8). One side of the connecting plate (7) is fixedly connected to one side of the support frame (9). The top of the two sets of movable plates (8) is slidably connected to two sets of fixing blocks (16). The bottom of the two sets of fixing blocks (16) is provided with dovetail grooves (17). The inner wall of the dovetail grooves (17) is narrow in the front and wide in the back. The two sets of dovetail grooves (17) are symmetrically distributed. Limiting blocks (6) are fixedly installed on the top of the two sets of movable plates (8). The limiting blocks (6) are slidably connected to the inner wall of the dovetail grooves (17).
2. The graphite heater frame with dovetail groove connection according to claim 1, characterized in that: The bottom of both sets of movable plates (8) is fixedly installed with sliders (15), and the top of the base (1) is provided with two sets of sliding grooves (11), and the sliders (15) are slidably connected to the inner wall of the sliding grooves (11).
3. A graphite heater frame with a dovetail groove connection according to claim 2, characterized in that: Two sets of springs (12) are fixedly connected to the inner sidewalls of the two sets of slides (11), and the front end of the springs (12) is fixedly connected to the outer surface of the slider (15).
4. A graphite heater frame with a dovetail groove connection according to claim 1, characterized in that: The top of both sets of movable plates (8) is provided with guide grooves (14), and the inner walls of both sets of guide grooves (14) are movably connected to two sets of guide blocks (18), and the top of the guide block (18) is fixedly connected to the bottom of the fixing block (16).
5. A graphite heater frame with a dovetail groove connection according to claim 1, characterized in that: The heater body (5) is a disc graphite heater.