Butt joint structure of segmented quartz furnace tube
By using a segmented quartz furnace tube docking structure, docking strips and transmission rings are used to dock and separate furnace tube segments, solving the problems of difficult replacement of existing quartz furnace tubes and high spare parts costs, thus achieving convenient maintenance and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ZHONGHUAN PHOTOVOLTAIC TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
AI Technical Summary
Existing quartz furnace tubes are heavy due to their extra-long length and large diameter, requiring high installation height and multiple people to work together at height to replace them. When damaged, the entire tube must be scrapped, resulting in high spare parts costs.
The furnace tube adopts a segmented quartz tube structure, and the connection and separation of the furnace tube segments are achieved through the connection strip and the transmission ring. The beveled edge and elastic element buffer protection are used, and the different colored ring groove indicates the connection status. The mechanical transmission facilitates separation.
It reduces the difficulty of replacement and the manpower required, reduces spare parts costs, and improves the utilization rate of quartz tubes and the ease of equipment maintenance.
Smart Images
Figure CN224455404U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of quartz furnace tube technology, and more specifically, it relates to a connecting structure for segmented quartz furnace tubes. Background Technology
[0002] In battery manufacturing workshops, tubular boron diffusion and LPCVD coating equipment are core equipment in the process. Quartz furnace tubes are essential components for achieving the high-temperature, high-pressure, and sealed process conditions of these devices, and are a core design element of conventional tubular diffusion and coating equipment. Existing quartz furnace tubes are characterized by large diameters (typically 400-600 mm) and long lengths (up to 4000-5000 mm), forming an overall elongated tubular structure. However, due to the inherent brittleness of quartz, they are easily broken, and their service life is short (only 1-4 months) under the high-temperature process environment of 600-1040℃. In addition, the processing difficulty and cost of large-sized quartz materials are high, resulting in a high price for a single furnace tube.
[0003] Existing application number CN202220564146.9 discloses a quartz furnace tube with an easily connected end, specifically relating to the field of quartz furnace tubes. It includes a quartz furnace tube body, with a connecting fixing ring and a fitting connecting sleeve rotatably connected to the outer surface of one end of the tube body via bearings. An outer connecting sleeve cover is slidably fitted onto the outer surface of the fitting connecting sleeve cover. The connecting fixing ring is provided with several fixing components for engaging the outer connecting sleeve cover. Several embedded limiting strips are fixedly connected to the inner wall of the outer connecting sleeve cover, and each of the embedded limiting strips is fixedly connected with a locking post. This utility model simplifies the connection and locking process of the outer connecting sleeve cover by setting the fixing components. When disassembly is required, the fixing plate is disengaged from the fixing groove on the locking post by manually sliding the sliding push block, thus enabling the entire outer connecting sleeve cover to be disassembled.
[0004] Based on the above, existing quartz furnace tubes are limited by their excessive length and large diameter, resulting in a large overall weight. Furthermore, the installation height is nearly 5 meters, requiring at least 6 professional technicians to work together at height during replacement. This not only involves a large manpower investment but also presents significant operational difficulties. Moreover, once the furnace tube is damaged, regardless of the location or severity of the damage, it cannot be used and must be scrapped entirely, directly leading to high spare parts costs. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides a segmented quartz furnace tube docking structure. This solves the problem that existing quartz furnace tubes are limited by their excessive length and large diameter, resulting in a heavy overall weight and an installation height of nearly 5 meters. This necessitates at least six professional technicians working together at height during replacement, leading to significant manpower investment and operational difficulties. Furthermore, once the furnace tube is damaged, regardless of the location or severity of the damage, it becomes unusable and must be scrapped, directly causing high spare parts costs.
[0006] The purpose and effect of this utility model's segmented quartz furnace tube connection structure are achieved through the following specific technical means:
[0007] A segmented quartz furnace tube docking structure includes a connecting body, an upper furnace tube segment, a lower furnace tube segment, docking strips, a transmission ring, a docking assembly, and a separation assembly. The upper furnace tube segment is located at one end of the connecting body; the lower furnace tube segment is located at the other end of the connecting body; two sets of docking strips are provided, with each set located at one end of the connecting body; two sets of transmission rings are provided, with each set located on both sides inside the connecting body; the docking assembly is located inside the connecting body; and the separation assembly is located inside the connecting body.
[0008] Furthermore, the docking assembly includes: an annular groove and a docking groove. Two sets of annular grooves are provided, with the two sets of annular grooves located at both ends of the connecting body. Two sets of docking strips are respectively engaged inside the two sets of annular grooves. Two sets of docking grooves are provided, with the two sets of docking grooves located on both sides inside the connecting body. One end of the upper furnace tube section and one end of the lower furnace tube section are respectively engaged inside the two sets of docking grooves. Two sets of transmission rings are respectively slidably connected inside the two sets of docking grooves.
[0009] Furthermore, the docking assembly also includes: a chamfered face, wherein two sets of chamfered faces are provided, and the two sets of chamfered faces are respectively opened on the inner side of the two sets of docking strips.
[0010] Furthermore, the docking assembly also includes: a snap-fit groove and a snap-fit block. The snap-fit groove is provided in two sets, and the two sets of snap-fit grooves are respectively opened at the top of the two sets of docking adhesive strips. The snap-fit block is provided in two sets, and the two sets of snap-fit blocks are respectively fixedly installed at the ends of the two sets of docking adhesive strips.
[0011] Furthermore, the docking assembly also includes: transmission rods and elastic elements. The transmission rods are provided in eight sets, with every four sets of transmission rods slidably connected inside a set of docking grooves, and every four sets of transmission rods fixedly installed inside a set of transmission rings. The elastic elements are provided in eight sets, with one end of every four sets of elastic elements fixedly connected to the inside of a set of transmission rings.
[0012] Furthermore, the separation component includes: sliding grooves and sliding rods, wherein eight sets of sliding grooves are provided, and the eight sets of sliding grooves are opened on the outside of the connecting body; and eight sets of sliding rods are provided, and the eight sets of sliding rods are slidably connected inside the eight sets of sliding grooves respectively.
[0013] Furthermore, the separation assembly also includes: impact pads and connecting rods, wherein eight sets of impact pads are provided, and the eight sets of impact pads are fixedly installed on the top of eight sets of sliding rods; and eight sets of connecting rods are provided, wherein one end of the eight sets of connecting rods is hinged to the end of the eight sets of sliding rods, and the other end of the eight sets of connecting rods is hinged to the end of the eight sets of transmission rods.
[0014] Furthermore, the separation component also includes: eight sets of different colored ring grooves, which are located in the middle of eight sets of sliding rods.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] Firstly, this invention features a docking assembly. By splitting the long quartz furnace tube into two shorter sections, which are then connected to the main body for docking, the length and weight of a single furnace tube section are significantly reduced, decreasing the number of personnel required for replacement and lowering the difficulty of high-altitude operations. The elastic cushioning design of the docking strip prevents collision damage during docking. Its beveled guide structure facilitates precise insertion of the furnace tube into the docking slot, while the elastic element further cushions hard contact, protecting the integrity of the components. The docking strip is disassembled and recyclable, allowing for multiple reuses, reducing consumable costs and preventing damage from high-temperature environments.
[0017] Secondly, this invention features a separation component. Through a transmission structure linking the sliding rod and the transmission ring, the prominent color exposed in the dissimilar ring groove when properly aligned visually indicates the installation status, ensuring precise alignment. When replacing components, striking the impact pad mechanically pushes the furnace tube section out of the docking groove for quick and easy separation. Even any damaged residue can be effectively removed. The diagonal striking method ensures even force distribution, preventing further damage.
[0018] This invention has the advantages of reducing costs, facilitating replacement, and minimizing installation damage. It solves the problems of difficult and costly replacement of traditional quartz furnace tubes, enables targeted replacement, improves the utilization rate of quartz tubes, and significantly reduces operating costs. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the main connecting structure of this utility model.
[0021] Figure 3This is a schematic diagram of the annular groove structure of this utility model.
[0022] Figure 4 This is a schematic diagram of the joint adhesive strip structure of this utility model.
[0023] Figure 5 This is the utility model Figure 4 Enlarged structural diagram at point A in the middle.
[0024] Figure 6 This is a schematic diagram of the transmission ring structure of this utility model.
[0025] Figure 7 This is a schematic diagram of the sliding rod structure of this utility model.
[0026] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0027] 1. Connecting body; 101. Annular groove; 102. Butt joint groove; 103. Sliding groove; 2. Upper furnace tube section; 3. Lower furnace tube section; 4. Butt joint strip; 401. Beveled chamfer; 402. Snap-fit groove; 403. Snap-fit block; 5. Transmission ring; 501. Transmission rod; 502. Elastic element; 503. Connecting rod; 504. Sliding rod; 505. Impact pad; 506. Different colored ring groove. Detailed Implementation
[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0029] Example 1:
[0030] As attached Figure 1 To be continued Figure 7 As shown:
[0031] This utility model provides a segmented quartz furnace tube docking structure, including a connecting body 1, an upper furnace tube segment 2, a lower furnace tube segment 3, docking adhesive strips 4, a transmission ring 5, and a docking assembly. The upper furnace tube segment 2 is located at one end of the connecting body 1; the lower furnace tube segment 3 is located at the other end of the connecting body 1; two sets of docking adhesive strips 4 are provided, with the two sets of docking adhesive strips 4 respectively located at both ends of the connecting body 1; two sets of transmission rings 5 are provided, with the two sets of transmission rings 5 respectively located on both sides inside the connecting body 1; and the docking assembly is located inside the connecting body 1.
[0032] The docking assembly includes: annular groove 101 and docking groove 102. Two sets of annular groove 101 are provided, and the two sets of annular groove 101 are opened at both ends of the connecting body 1. Two sets of docking rubber strips 4 are respectively snapped into the two sets of annular groove 101. Two sets of docking groove 102 are provided, and the two sets of docking groove 102 are opened on both sides inside the connecting body 1. One end of the upper furnace tube section 2 and the lower furnace tube section 3 are respectively snapped into the two sets of docking groove 102. Two sets of transmission rings 5 are slidably connected inside the two sets of docking groove 102.
[0033] The docking assembly also includes: a chamfered face 401, which is provided in two sets, and the two sets of chamfered face 401 are respectively opened on the inner side of the two sets of docking strips 4.
[0034] The docking assembly also includes: a snap-fit groove 402 and a snap-fit block 403. Two sets of snap-fit grooves 402 are provided, and the two sets of snap-fit grooves 402 are respectively opened at the top of the two sets of docking adhesive strips 4. Two sets of snap-fit blocks 403 are provided, and the two sets of snap-fit blocks 403 are respectively fixedly installed at the ends of the two sets of docking adhesive strips 4.
[0035] The docking assembly also includes: transmission rods 501 and elastic elements 502. There are eight sets of transmission rods 501, with four sets of transmission rods 501 slidably connected inside a set of docking grooves 102, and four sets of transmission rods 501 fixedly installed inside a set of transmission rings 5. There are eight sets of elastic elements 502, with one end of four sets of elastic elements 502 fixedly connected to the inside of a set of transmission rings 5.
[0036] The specific usage and function of this embodiment are as follows:
[0037] In practical applications, the traditional long quartz furnace tube is first split into two shorter sections: an upper furnace tube section 2 and a lower furnace tube section 3. This segmented design reduces the length and weight of each furnace tube section, decreasing the number of operators required for replacement and significantly reducing the difficulty of replacement. Moreover, only the damaged furnace tube section or the connecting body 1 needs to be replaced, eliminating the need to scrap the entire tube and greatly reducing spare parts costs.
[0038] When it is necessary to connect the upper furnace tube section 2 and the lower furnace tube section 3, firstly, using the snap-fit grooves 402 and snap-fit blocks 403 at both ends of the connecting strip 4, the snap-fit blocks 403 are embedded into the snap-fit grooves 402, so that the connecting strip 4 forms a closed ring; then, the ring-shaped connecting strip 4 is snapped into the annular grooves 101 at both ends of the connecting body 1, ensuring that the chamfered edge 401 of the connecting strip 4 faces inward to form a trumpet-shaped structure.
[0039] During this process, the mating strip 4 plays multiple roles when the connecting body 1 is mated with the upper furnace tube section 2 and the lower furnace tube section 3: on the one hand, its elastic material can buffer the impact force during mating and prevent the furnace tube from being damaged by direct collision with the connecting body 1; on the other hand, the trumpet-shaped structure formed by the chamfered surface 401 can guide the insertion direction of the upper furnace tube section 2 and the lower furnace tube section 3, making it easier to accurately enter the mating groove 102 inside the connecting body 1.
[0040] When the upper furnace tube section 2 or the lower furnace tube section 3 is inserted into the docking groove 102, it will push the transmission ring 5 to slide within the docking groove 102, and at the same time drive the transmission rod 501 to move synchronously. The transmission rod 501 plays a guiding role in this process, ensuring that the transmission ring 5 slides smoothly. When the transmission ring 5 approaches the bottom of the docking groove 102, the elastic element 502 on its inner side will undergo elastic deformation, further buffering the impact force and preventing the furnace tube from making hard contact with the bottom of the docking groove 102, thereby protecting the structural integrity of the furnace tube and the connecting body 1.
[0041] Meanwhile, after the connecting body 1 is connected to the upper furnace tube section 2 and the lower furnace tube section 3, the connecting strip 4 can be removed from the engagement between the locking groove 402 and the locking block 403. This facilitates the repeated use of the connecting strip 4, reduces consumable costs, and prevents it from being damaged by prolonged heat during high-temperature operation of the equipment, thus extending the service life of the connecting strip 4.
[0042] Example 2:
[0043] Based on Example 1, such as Figures 1 to 7 As shown, it also includes a separation component, which is disposed inside the connection body 1.
[0044] The separation component includes: a sliding groove 103 and a sliding rod 504. The sliding groove 103 is provided in eight sets, and the eight sets of sliding grooves 103 are opened on the outside of the connecting body 1. The sliding rod 504 is provided in eight sets, and the eight sets of sliding rods 504 are slidably connected to the inside of the eight sets of sliding grooves 103 respectively.
[0045] The separation assembly also includes: impact pads 505 and connecting rods 503. Eight sets of impact pads 505 are provided, and the eight sets of impact pads 505 are fixedly installed on the top of eight sets of sliding rods 504. Eight sets of connecting rods 503 are provided, with one end of the eight sets of connecting rods 503 hinged to the end of the eight sets of sliding rods 504, and the other end of the eight sets of connecting rods 503 hinged to the end of the eight sets of transmission rods 501.
[0046] The separation component also includes: a color-changing ring groove 506, of which eight sets are provided, and the eight sets of color-changing ring grooves 506 are located in the middle of the eight sets of sliding rods 504.
[0047] The specific usage and function of this embodiment are as follows:
[0048] During the docking process between the connecting body 1 and the upper furnace tube section 2 and the lower furnace tube section 3, the transmission ring 5 moves as the furnace tubes are inserted, synchronously driving the transmission rod 501 to move, which in turn drives the connecting rod 503 to swing, ultimately pushing the sliding rod 504 to slide outward along the sliding groove 103. The sliding groove 103 provides stable guidance for the sliding rod 504. As the sliding rod 504 moves outward, the impact pad 505 at its top and the discolored ring groove 506 in the middle gradually push outward toward the outside of the connecting body 1 until the discolored ring groove 506 is completely exposed in the sliding groove 103. Since the discolored ring groove 506 is sprayed with eye-catching colors such as red and green, its complete exposure can visually indicate to the operator that the upper furnace tube section 2 and the lower furnace tube section 3 have been accurately inserted into the bottom of the docking groove 102 and are docked in place; if the discolored ring groove 506 is not completely exposed, the docking is not in place and the position of the furnace tubes needs to be adjusted.
[0049] When it is necessary to replace the connecting body 1, upper furnace tube section 2, or lower furnace tube section 3, use a blunt object to strike the impact pad 505. The impact force is transmitted to the connecting rod 503 through the sliding rod 504, causing it to swing in the opposite direction and drive the transmission rod 501 to slide. This, in turn, pushes the transmission ring 5 to move outward of the docking groove 102, pushing the upper furnace tube section 2 or lower furnace tube section 3 out of the docking groove 102. This design not only facilitates normal separation operations but also effectively handles special situations. If a damaged furnace tube remains in the docking groove 102 and affects subsequent installation, the residue can be pushed out by striking the impact pad 505. It should be noted that a diagonal striking method should be used to ensure even force distribution and avoid damage to components.
[0050] The following points should be noted in this article:
[0051] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.
[0052] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.
[0053] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.
Claims
1. A butt joint structure of a segmented quartz furnace tube, characterized by: The segmented quartz furnace tube docking structure includes a connecting body (1), an upper furnace tube section (2), a lower furnace tube section (3), docking strips (4), a transmission ring (5), a docking assembly, and a separation assembly. The upper furnace tube section (2) is located at one end of the connecting body (1); the lower furnace tube section (3) is located at the other end of the connecting body (1); two sets of docking strips (4) are provided, and the two sets of docking strips (4) are respectively located at both ends of the connecting body (1); two sets of transmission rings (5) are provided, and the two sets of transmission rings (5) are respectively located on both sides inside the connecting body (1); the docking assembly is located inside the connecting body (1); and the separation assembly is located inside the connecting body (1).
2. The segmented quartz furnace tube butt joint of claim 1, wherein: The docking assembly includes: an annular groove (101) and a docking groove (102). The annular groove (101) is provided in two sets, and the two sets of annular grooves (101) are opened at both ends of the connecting body (1). The two sets of annular grooves (101) are respectively fitted with two sets of docking rubber strips (4). The docking groove (102) is provided in two sets, and the two sets of docking grooves (102) are opened on both sides inside the connecting body (1). The two sets of docking grooves (102) are respectively fitted with one end of the upper furnace tube section (2) and the lower furnace tube section (3). The two sets of docking grooves (102) are respectively slidably connected with two sets of transmission rings (5).
3. The segmented quartz furnace tube butt joint of claim 2, wherein: The docking assembly further includes: a chamfered face (401), which is provided in two sets, and the two sets of chamfered face (401) are respectively opened on the inner side of the two sets of docking adhesive strips (4).
4. The segmented quartz furnace tube butt joint of claim 2, wherein: The docking assembly further includes: a snap-fit groove (402) and a snap-fit block (403). The snap-fit groove (402) is provided in two sets, and the two sets of snap-fit grooves (402) are respectively opened at the top of the two sets of docking adhesive strips (4). The snap-fit block (403) is provided in two sets, and the two sets of snap-fit blocks (403) are respectively fixedly installed at the ends of the two sets of docking adhesive strips (4).
5. The segmented quartz furnace tube butt joint of claim 2, wherein: The docking assembly further includes: a transmission rod (501) and an elastic element (502). The transmission rod (501) is provided in eight sets, and every four sets of the transmission rod (501) are slidably connected inside a docking groove (102). Every four sets of the transmission rod (501) are fixedly installed inside a transmission ring (5). The elastic element (502) is provided in eight sets, and every four sets of the elastic element (502) are fixedly connected at one end to the inside of a transmission ring (5).
6. The segmented quartz furnace tube butt joint of claim 1, wherein: The separation component includes: a sliding groove (103) and a sliding rod (504). The sliding groove (103) is provided in eight sets, and the eight sets of sliding grooves (103) are opened on the outside of the connecting body (1). The sliding rod (504) is provided in eight sets, and the eight sets of sliding rods (504) are slidably connected to the eight sets of sliding grooves (103) respectively.
7. The segmented quartz furnace tube butt joint of claim 6, wherein: The separation assembly further includes: impact pads (505) and connecting rods (503). The impact pads (505) are provided in eight sets, and the eight sets of impact pads (505) are fixedly installed on the top of the eight sets of sliding rods (504). The connecting rods (503) are provided in eight sets, with one end of the eight sets of connecting rods (503) hinged to the end of the eight sets of sliding rods (504), and the other end of the eight sets of connecting rods (503) hinged to the end of the eight sets of transmission rods (501).
8. The segmented quartz furnace tube butt joint of claim 6, wherein: The separation component also includes: a color-changing ring groove (506), which is provided in eight sets, and the eight sets of color-changing ring grooves (506) are opened in the middle of the eight sets of sliding rods (504).