Auxiliary chamber reducing connection structure

Abstract

The embodiment of the utility model provides an auxiliary chamber reducing connection structure, and relates to the technical field of single crystal furnaces. The auxiliary chamber reducing connecting structure comprises an auxiliary chamber furnace cylinder, a lengthened auxiliary chamber cylinder used for bearing is arranged at the end of the auxiliary chamber furnace cylinder, meanwhile, a lifting head is installed at the end of the lengthened auxiliary chamber cylinder, and two sealing flanges which are symmetrically arranged are welded to the opposite ends of the lifting head and the lengthened auxiliary chamber cylinder. Under the matching action of the lower variable-diameter flange assembly and the upper variable-diameter flange assembly, the auxiliary chamber furnace barrel and the lengthened auxiliary chamber barrel can be replaced and subjected to variable-diameter treatment only by separating the auxiliary chamber furnace barrel from the lengthened auxiliary chamber barrel under the action of asynchronously disassembling the lengthened auxiliary chamber barrel, and the auxiliary chamber furnace barrel can be replaced and subjected to variable-diameter treatment without being limited by the auxiliary chamber furnace barrel. And the whole lengthened auxiliary chamber cylinder and the lifting head are integrally disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnaces, in particular to a secondary chamber diameter-changing connection structure. Background Art

[0002] The single crystal furnace is the core equipment for producing high-purity single crystal materials. As an important raw material for high-tech products such as solar photovoltaic cells and integrated circuits, the quality and size of single crystal silicon rods are directly related to the performance and cost-effectiveness of downstream products; and the auxiliary chamber is the area used to hold the heavy hammer and produce the crystal rod during the crystal pulling process;

[0003] In actual production, the existing sub-chamber barrel has a small diameter, which limits the diameter of the single crystal rod. The traditional solution requires the replacement of the sub-chamber and the pulling head assembly as a whole, which is not only time-consuming and labor-intensive, but also increases production downtime, investment in multiple equipment, and maintenance costs. Specifically, when the diameter of the single crystal rod needs to be increased, due to the limitation of the sub-chamber diameter, the entire sub-chamber unit must be disassembled and replaced with a larger diameter model, and the corresponding pulling head device must be matched at the same time to ensure stable crystal growth conditions throughout the pulling process. Utility Model Content

[0004] The utility model aims to provide a secondary chamber diameter-changing connection structure, which can realize the expansion of the internal diameter of the secondary chamber by only replacing the secondary chamber part without replacing the pulling head.

[0005] The utility model provides a secondary chamber variable diameter connection structure, comprising:

[0006] A sub-chamber furnace barrel, and an extended sub-chamber barrel for receiving the sub-chamber furnace barrel is arranged at the end thereof, and at the same time, a lifting head is installed at the end of the extended sub-chamber barrel, and two symmetrically arranged sealing flanges are welded to the lifting head and the opposite ends of the extended sub-chamber barrel, a lower reducing flange assembly is sleeved on the end of the surface of the sub-chamber furnace barrel, and an upper reducing flange assembly is sleeved on the lower part of the surface of the extended sub-chamber barrel, an observation window is inlaid on the surface of the extended sub-chamber barrel, and matching sealing rings are installed at the opposite ends of the lower reducing flange assembly and the upper reducing flange assembly.

[0007] In a specific implementation, an outer ring at the end of the auxiliary chamber furnace tube is provided with an assembly inclined groove, and both upper and lower ends of the surface of the extended auxiliary chamber tube are provided with clamping grooves with the same groove diameter.

[0008] In a specific embodiment, the lower reducer flange assembly includes a flange member 1 and an elastic member;

[0009] The inner ring of the bottom of the flange component is provided with an inner ring groove, and an outer ring groove is provided at the bottom of the flange component and outside the inner ring groove. At the same time, a plug-in groove is provided at the bottom of the flange component and on the side opposite to the inner ring groove and the outer ring groove.

[0010] In a specific embodiment, an annular paddle is rotatably mounted in the inner cavity of the outer ring groove, and a plurality of arc-shaped protrusions are evenly distributed on the outer ring of the surface of the annular paddle.

[0011] In a specific embodiment, the elastic component includes a limit plate for plugging the auxiliary chamber furnace drum and the lower reducer flange assembly, and the limit plate is installed in the inner cavity of the assembly chute, wherein a stabilizing support plate is provided on the upper part of the limit plate, a connecting rod member is penetrated through the bottom of the surface of the limit plate, and an elastic member is sleeved on the middle part of the surface of the connecting rod member.

[0012] In a specific embodiment, the upper reducer flange assembly includes a flange component 2 and a bolt component disposed on the surface of the flange component 2 for connection, and the bolt component is multiple and is disposed through the surface of the flange component 2.

[0013] In a specific implementation scheme, an annular base groove is provided at the end of the flange component 2, and a plurality of limiting slots are provided in an annular array on the inner surface of the flange component 2 and the bottom of the outer surface of the extended secondary chamber tube, and the limiting slots are connected to the annular base groove, wherein the inner cavity of the annular base groove is provided with a mixing disc body, and the end of the mixing disc body is inlaid with an inner adjusting groove hole.

[0014] In a specific embodiment, a plug-in base is provided at the bottom of the mixing tray, wherein a plug-in plate is provided through the end of the plug-in plate, the end of the plug-in plate is connected to a guide rod, and an arc-shaped rail groove adapted to the guide rod is opened at the end of the mixing tray.

[0015] In a specific embodiment, two mounting sleeves with the same diameter are fixedly connected to the upper and lower ends of the observation window, and sealing members are connected to both ends of the mounting sleeves.

[0016] In a specific implementation, an annular spring is embedded and installed on the inner surface of the sealing ring, a spring groove body 1 is annularly provided at the bottom of the flange component 2, and a spring groove body 2 is provided at the end of the flange component 1.

[0017] The beneficial effects of the present application are as follows: the auxiliary chamber furnace barrel and the extended auxiliary chamber barrel can be replaced and reduced in diameter by simply separating the auxiliary chamber furnace barrel from the extended auxiliary chamber barrel under the cooperation of the lower reducing flange assembly and the upper reducing flange assembly, without the need to disassemble the entire extended auxiliary chamber barrel and the lifting head as a whole according to the limitation of the auxiliary chamber furnace barrel;

[0018] Under the joint action of the elastic member and the annular paddle on the lower reducer flange assembly, the flange disc part 1 can be flexibly assembled to the surface of the auxiliary chamber furnace barrel, so as to facilitate the replacement of flange disc parts 1 of different sizes and connect them with the extended auxiliary chamber barrel;

[0019] Under the action of the adjusting plate body and the plug-in base on the upper reducer flange assembly, the plug-in plate can be pushed into the limiting slot to assemble the flange plate part 2 and the extended auxiliary chamber tube, so as to replace the flange plate part 2 of different sizes to connect with the auxiliary chamber furnace tube;

[0020] Under the action of the mounting sleeve and the seal, the observation window can be stably embedded in the clamping groove on the extended auxiliary chamber tube, that is, the observation window can be installed on the auxiliary chamber furnace tube, so as to facilitate the observation of the processing conditions inside;

[0021] Under the joint action of spring groove body two and spring groove body one, a sealing cavity can be formed on flange part one and flange part two, and the sealing ring can be assembled so that the sealing ring can be assembled under the action of the annular spring to increase the elasticity to seal flange part one and flange part two. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 It is a three-dimensional exploded schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 3 This is a three-dimensional schematic diagram of the observation window structure of an embodiment of the utility model;

[0026] Figure 4 It is a three-dimensional exploded schematic diagram of the upper flange assembly structure of an embodiment of the utility model;

[0027] Figure 5 It is a three-dimensional exploded schematic diagram of the local structure of the upper flange assembly of the embodiment of the utility model;

[0028] Figure 6 It is a bottom-up stereoscopic schematic diagram of the second structure of the flange member of the embodiment of the utility model;

[0029] Figure 7 This is a three-dimensional exploded schematic diagram of the lower flange assembly structure of an embodiment of the utility model;

[0030] Figure 8 It is a bottom-up stereoscopic schematic diagram of a partial structure of a flange member of an embodiment of the utility model;

[0031] Fig. 9 This is a three-dimensional exploded schematic diagram of the sealing ring structure of an embodiment of the utility model;

[0032] Fig.10 It is a schematic front view of the elastic component structure of an embodiment of the utility model.

[0033] icon:

[0034] 100, auxiliary chamber furnace barrel; 101, assembly chute; 110, extended auxiliary chamber barrel; 111, clamping groove; 120, lifting head; 130, sealing flange;

[0035] 200, lower reducer flange assembly; 210, flange plate component 1; 211, inner ring groove; 212, outer ring groove; 213, plug-in groove; 220, annular paddle; 221, arc-shaped protrusion; 230, elastic member; 231, limit plate; 232, stabilizing support plate; 233, connecting rod; 234, elastic member;

[0036] 300, upper reducer flange assembly; 310, flange plate component 2; 311, annular base groove; 312, limit slot; 320, bolt component; 330, adjustment plate body; 331, arc-shaped rail groove; 332, inner adjustment slot hole; 340, plug-in base; 350, plug-in plate component; 351, guide rod component;

[0037] 400, observation window; 401, installation plate; 402, sealing member;

[0038] 500, sealing ring; 501, annular spring; 510, spring slot body 1; 520, spring slot body 2. DETAILED DESCRIPTION

[0039] Since the existing sub-chamber barrel has a relatively small diameter, the diameter of the single crystal rod is limited. The traditional solution requires the overall replacement of the sub-chamber and the pulling head assembly, which is not only time-consuming and labor-intensive, but also increases production downtime, the investment in multiple equipment, and maintenance costs. Specifically, when the diameter of the single crystal rod needs to be increased, due to the limitation of the sub-chamber diameter, the entire sub-chamber unit must be disassembled and replaced with a larger diameter model, and at the same time matched with a corresponding pulling head device to ensure that stable crystal growth conditions are maintained throughout the pulling process. Therefore, the inventor has provided a sub-chamber variable diameter connection structure after research. When in use, the internal diameter of the sub-chamber can be expanded by replacing only the sub-chamber part without replacing the pulling head, thereby solving the above-mentioned defects.

[0040] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] Embodiment 1

[0042] Please refer to Figures 1 to 10 The embodiment of the utility model provides a secondary chamber variable diameter connection structure, including a secondary chamber furnace barrel 100, and the end of the secondary chamber furnace barrel 100 is provided with an extended secondary chamber barrel 110 for receiving. At the same time, a lifting head 120 is installed at the end of the extended secondary chamber barrel 110. In order to connect the extended secondary chamber barrel 110 and the lifting head 120, two symmetrically arranged sealing flanges 130 are welded to the opposite ends of the lifting head 120 and the extended secondary chamber barrel 110. The two sealing flanges 130 are fastened and connected by screws.

[0043] In order to facilitate the diameter reduction of the extended auxiliary chamber tube 110 and the auxiliary chamber furnace tube 100, a lower diameter reducing flange assembly 200 is sleeved on the surface end of the auxiliary chamber furnace tube 100, and an upper diameter reducing flange assembly 300 is sleeved on the lower part of the surface of the extended auxiliary chamber tube 110, wherein the lower diameter reducing flange assembly 200 and the upper diameter reducing flange assembly 300 cooperate with each other to replace and reduce the diameter of the auxiliary chamber furnace tube 100.

[0044] Among them, the surface of the extended auxiliary chamber tube 110 is inlaid with an observation window 400, and the observation window 400 is used to observe the material processing status therein. Under the action of the lower reducing flange assembly 200 and the upper reducing flange assembly 300, the auxiliary chamber furnace tube 100 can be removed from the extended auxiliary chamber tube 110 by adopting a non-fixed welding form. When the diameter is changed, the auxiliary chamber furnace tube 100 of different specifications is replaced and assembled on the upper reducing flange assembly 300 through the lower reducing flange assembly 200. The auxiliary chamber furnace tube 100 and the extended auxiliary chamber tube 110 can be installed. In order to increase the sealing between the lower reducing flange assembly 200 and the upper reducing flange assembly 300, matching sealing rings 500 are installed at the opposite ends of the lower reducing flange assembly 200 and the upper reducing flange assembly 300.

[0045] Embodiment 2

[0046] In the process of designing the lower reducing flange assembly 200 to assemble the auxiliary chamber furnace barrel 100 and realizing convenient connection and reduction of auxiliary chamber furnace barrels 100 of different sizes with the extended auxiliary chamber barrel 110, it is considered that when replacing auxiliary chamber furnace barrels 100 of different sizes, if the lower reducing flange assembly 200 of the same size is assembled into an integrated manner with auxiliary chamber furnace barrels 100 of different sizes, when facing auxiliary chamber furnace barrels 100 of larger sizes, the specifications of the lower reducing flange assembly 200 need to consider whether it can adapt to the requirements of different sizes of auxiliary chamber furnace barrels 100, and whether it needs to be compatible with industry standards to avoid installation difficulties caused by different standards. In order to facilitate the replacement of lower reducing flange assemblies 200 of different sizes for connection with the auxiliary chamber furnace barrel 100, improvements are made on the basis of the above embodiments, such as Figure 7 , Figure 8 and Fig.10 As shown;

[0047] Specifically, the outer ring of the end of the auxiliary chamber furnace drum 100 is provided with an assembly chute 101 for use with the lower reducing flange assembly 200.

[0048] Specifically, the lower reducing flange assembly 200 includes a flange plate 210 for assembling with the upper reducing flange assembly 300 and an elastic member 230 disposed in the inner cavity of the assembly chute 101 for clamping with the auxiliary chamber furnace barrel 100;

[0049] Among them, an inner ring groove 211 is provided at the inner ring of the bottom of the flange member 210, and an outer ring groove 212 is provided at the bottom of the flange member 210 and outside the inner ring groove 211, and the aperture of the outer ring groove 212 is larger than the aperture of the inner ring groove 211. At the same time, a plug-in groove 213 is provided at the bottom of the flange member 210 and on the side opposite to the inner ring groove 211 and the outer ring groove 212, and there are multiple plug-in grooves 213, which are annularly symmetrically provided on the side opposite to the inner ring groove 211 and the outer ring groove 212, so that the inner ring groove 211 and the outer ring groove 212 are connected by using the plug-in groove 213;

[0050] Specifically, the outer annular groove 212 is used to assemble the annular paddle 220, and one end of the elastic member 230 disposed on the assembly chute 101 can enter the inner annular groove 211 and be plugged into the plug-in groove 213, so as to clamp the auxiliary chamber furnace barrel 100 and the lower reducing flange assembly 200. When the annular paddle 220 is rotated and adjusted, the arc-shaped protrusion 221 can be used to squeeze the elastic member 230 out of the plug-in groove 213, so as to separate the auxiliary chamber furnace barrel 100 and the lower reducing flange assembly 200;

[0051] Specifically, the inner cavity of the outer ring groove 212 is rotatably mounted with an annular paddle 220, and the outer ring of the surface of the annular paddle 220 is evenly distributed with a plurality of arc-shaped protrusions 221, and the edges of both ends of the arc-shaped protrusions 221 are processed with arc-shaped cutting, so that when the elastic member 230 is squeezed, the ends thereof are processed with arc-shaped cutting transition, thereby preventing the problem of the elastic member 230 being stuck when being squeezed, wherein, in order to facilitate the rotation of the annular paddle 220, the bottom of the annular paddle 220 is connected with an external hexagonal rod, wherein, the bottom of the external hexagonal rod extends to the bottom of the flange member 210, and the annular paddle 220 can be turned by the external internal hexagonal sleeve to adjust the elastic member 230;

[0052] Specifically, the elastic member 230 includes a limit plate 231 for plugging the auxiliary chamber furnace barrel 100 and the lower reducer flange assembly 200, and the limit plate 231 is installed in the inner cavity of the assembly inclined groove 101, and the extended end of the limit plate 231 passes through the inner ring groove 211 on the flange plate 210 and is plugged into the plug-in groove 213. At the same time, the number of elastic members 230 is multiple, and the number is the same as the plug-in groove 213. Among them, a stabilizing support plate 232 is provided on the upper part of the limit plate 231. In order to increase the stability between the two, a groove cavity adapted to the stabilizing support plate 232 is opened on the surface of the limit plate 231, and the two ends of the stabilizing support plate 232 are movably plugged in In the groove cavity, the limit plate 231 and the stabilizing support plate 232 have rebound performance materials, such as spring steel and polyurethane materials. A connecting rod 233 is arranged through the bottom of the surface of the limit plate 231, and the two ends of the connecting rod 233 are connected to the inner surface of the assembly inclined groove 101. An elastic member 234 is sleeved on the middle part of the surface of the connecting rod 233, wherein the two ends of the elastic member 234 are connected to the surface of the limit plate 231. In this way, under the joint action of the stabilizing support plate 232, the connecting rod 233 and the elastic member 234, the rebound performance of the limit plate 231 is greatly improved, so that it is convenient to replace different lower reducer flange assemblies 200 and connect them to the extended auxiliary chamber tube 110.

[0053] Embodiment 3

[0054] In the process of designing the upper reducing flange assembly 300 to assemble the extended secondary chamber tube 110 and realize the reducing connection between the extended secondary chamber tube 110 and the secondary chamber furnace tube 100 of different sizes, considering that the lower reducing flange assembly 200 and the secondary chamber furnace tube 100 are in an active assembly, it is convenient to replace the lower reducing flange assemblies 200 of different sizes to connect the secondary chamber furnace tube 100 with the extended secondary chamber tube 110. If the upper reducing flange assembly 300 on the extended secondary chamber tube 110 is in a fixed connection with the extended secondary chamber tube 110, it is also unable to meet the needs of adapting to the secondary chamber furnace tubes 100 of different sizes, and the problem of installation difficulty occurs. Therefore, in order to facilitate the adaptation of the lower reducing flange assembly 200 and the upper reducing flange assembly 300 and flexible disassembly and assembly, improvements are made on the basis of the above embodiments, such as Figure 2 and Figures 4 to 6 As shown;

[0055] Specifically, the upper reducing flange assembly 300 includes a flange component 2 310 and a bolt component 320 disposed on the surface of the flange component 2 310 for connection, and the bolt component 320 is multiple and is disposed through the surface of the flange component 2 310. At the same time, the outer ring located on the surface of the flange component 1 210 is provided with a thread groove adapted to the bolt component 320. When the flange component 1 210 and the flange component 2 310 are fitted, the two can be connected by the bolt component 320. When the bolt component 320 is removed, the two can be separated, so that the auxiliary chamber furnace barrel 100 can be removed and reduced in diameter.

[0056] The end of the flange member 310 is provided with an annular base groove 311. Figure 3 and Figure 4 As shown, the inner surface of the second flange member 310 and the bottom of the outer surface of the extended auxiliary chamber tube 110 are both provided with a plurality of limiting slots 312 in an annular array, and the limiting slots 312 are communicated with the annular base groove 311, wherein the inner cavity of the annular base groove 311 is provided with a mixing plate body 330, and the end of the mixing plate body 330 is inlaid with an inner adjustment slot hole 332, and the inner adjustment slot hole 332 is a hexagonal screw hole, which can be inserted into and twisted by an external hexagonal wrench to move the mixing plate body 330;

[0057] Specifically, a plug-in base 340 is provided at the bottom of the mixing plate 330, and the plug-in base 340 is installed at the bottom of the inner cavity of the annular base groove 311, wherein a plug-in plate 350 is provided through the end of the plug-in base 340, and a plurality of plug-in plates 350 are evenly and symmetrically distributed on the surface of the plug-in base 340, and a slideway for cooperating with the plug-in plate 350 is provided on the surface of the plug-in base 340, wherein the plug-in plate 350 is slidably arranged in the slideway;

[0058] Specifically, in order to adjust the plug plate 350 so that it can be inserted into the limiting slot 312 on the extended secondary chamber tube 110 to connect the extended secondary chamber tube 110 and the flange plate 310, the end of the plug plate 350 is connected with a guide rod 351, and the guide rod 351 is T-shaped, and the end of the guide rod 351 is penetrated and arranged on the top of the adjustment disk body 330, and the end of the adjustment disk body 330 is provided with an arc-shaped track groove 331 adapted to the guide rod 351. When the disk body 330 is adjusted, it is forced to move in a straight line under the guide limit of the arc-shaped rail groove 331 on the guide rod member 351 and the limit of the plug-in plate member 350 on the sliding base 340, and finally inserted into the limit slot 312 on the extended auxiliary chamber tube 110, so as to connect the extended auxiliary chamber tube 110 and the bolt member 320, so as to facilitate the replacement of different upper reducer flange assemblies 300 so that the extended auxiliary chamber tube 110 and the corresponding auxiliary chamber furnace tube 100 can be connected.

[0059] Embodiment 4

[0060] Considering that the extended secondary chamber tube 110 cannot observe the material during processing, and then cannot actually judge the processing status of the material therein, in order to effectively monitor its internal state, improvements are made on the basis of the above embodiment, such as Figure 3 As shown;

[0061] Specifically, the upper and lower ends of the surface of the extended secondary chamber tube 110 are provided with card-mounting grooves 111 with the same groove diameter for assembling the observation window 400; the upper and lower ends of the observation window 400 are fixedly connected with two mounting sleeves 401 with the same diameter, and the mounting sleeve 401 is adapted to the card-mounting groove 111, and its inner diameter is larger than the diameter of the card-mounting groove 111. Therefore, with the cooperation of the card-mounting groove 111 and the mounting sleeve 401, the observation window 400 can be installed on the surface of the extended secondary chamber tube 110, and both ends of the mounting sleeve 401 are connected with sealing members 402, so as to increase the sealing of the connection between the mounting sleeve 401 and the extended secondary chamber tube 110 when the mounting sleeve 401 and the extended secondary chamber tube 110 are connected.

[0062] Embodiment 5

[0063] Considering the daily use of the flange member 210 and the flange member 2 310 after assembly, in order to make the sealing between the flange member 210 and the flange member 2 310 more stable, improvements are made on the basis of the above embodiment, such as Figure 7 and Fig. 9 As shown;

[0064] Specifically, the inner surface of the sealing ring 500 is inlaid with an annular spring 501, and the annular spring 501 can increase the elasticity of the sealing ring 500, so as to install it in the spring groove body 1 510 and the spring groove body 2 520 corresponding to the flange part 2 310 and the flange part 1 210;

[0065] Specifically, in order to increase the sealing performance of the connection between the lower reducer flange assembly 200 and the upper reducer flange assembly 300, the sealing ring 500 is installed, and a spring groove body 1 510 is provided in an annular manner at the bottom of the flange member 210, and a spring groove body 2 520 is provided at the end of the flange member 210. When the flange member 210 and the flange member 2 310 are fitted together, the spring groove body 1 510 and the spring groove body 2 520 form a sealed cavity, and the sealing ring 500 is provided in an annular manner. 00 is installed in the sealing cavity formed by the spring groove body 1 510 and the spring groove body 2 520 to seal the connection between the flange part 1 210 and the flange part 2 310, wherein the sealing ring 500 is annular and the inner surface is in the shape of an "I", and the sealing cavity formed by the spring groove body 1 510 and the spring groove body 2 520 is adapted to the sealing ring 500, thereby maximizing the sealing performance of the connection between the flange part 2 310 and the flange part 1 210.

[0066] In summary, the working principle of a sub-chamber reducing connection structure of the embodiment of the utility model is as follows: the sub-chamber furnace barrel 100 and the extended sub-chamber barrel 110 can be under the cooperation of the lower reducing flange assembly 200 and the upper reducing flange assembly 300, and can be under the action of the asynchronous disassembly of the extended sub-chamber barrel 110, and the sub-chamber furnace barrel 100 can be replaced and reduced in diameter by simply separating the sub-chamber furnace barrel 100 from the extended sub-chamber barrel 110, without the need to disassemble the entire extended sub-chamber barrel 110 and the lifting head 120 as a whole according to the limitation of the sub-chamber furnace barrel 100;

[0067] Under the joint action of the elastic member 230 and the annular paddle 220 on the lower reducing flange assembly 200, the flange disc 210 can be flexibly assembled to the surface of the auxiliary chamber furnace barrel 100, so as to facilitate the replacement of flange discs 210 of different sizes and connect them with the extended auxiliary chamber barrel 110;

[0068] Under the action of the adjusting plate 330 and the plug-in base 340 on the upper reducer flange assembly 300, the plug-in plate 350 can be moved to penetrate the limiting slot 312, and the flange plate 310 and the extended auxiliary chamber tube 110 can be assembled, so as to replace the flange plate 310 of different sizes to connect with the auxiliary chamber furnace tube 100;

[0069] Under the action of the mounting plate 401 and the sealing member 402, the observation window 400 can be stably embedded in the clamping groove 111 on the extended auxiliary chamber tube 110, that is, the observation window 400 can be installed on the auxiliary chamber furnace tube 100, so as to facilitate observation of the processing conditions inside.

[0070] Under the joint action of spring groove body 2 520 and spring groove body 1 510, a sealed cavity can be formed on flange part 1 210 and flange part 2 310, and the sealing ring 500 can be assembled so that the sealing ring 500 can be assembled under the action of the annular spring 501 to increase its elasticity to seal flange part 1 210 and flange part 2 310.

[0071] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A secondary chamber variable diameter connection structure, characterized in that: The invention comprises a secondary chamber furnace barrel (100), and an extended secondary chamber barrel (110) for receiving the secondary chamber furnace barrel (100) is arranged at the end thereof, and at the same time, a lifting head (120) is installed at the end of the extended secondary chamber barrel (110), and sealing flanges (130) are welded to the opposite ends of the lifting head (120) and the extended secondary chamber barrel (110), a lower reducing flange assembly (200) is sleeved on the end of the surface of the secondary chamber furnace barrel (100), and an upper reducing flange assembly (300) is sleeved on the lower part of the surface of the extended secondary chamber barrel (110), an observation window (400) is embedded and installed on the surface of the extended secondary chamber barrel (110), and matching sealing rings (500) are installed at the opposite ends of the lower reducing flange assembly (200) and the upper reducing flange assembly (300).

2. The auxiliary chamber variable diameter connection structure according to claim 1, characterized in that: An outer ring at the end of the auxiliary chamber furnace barrel (100) is provided with an assembly inclined groove (101), and both upper and lower ends of the surface of the extended auxiliary chamber barrel (110) are provided with clamping grooves (111) with the same groove diameter.

3. The auxiliary chamber variable diameter connection structure according to claim 2, characterized in that: The lower reducing flange assembly (200) comprises a flange component 1 (210) and an elastic component (230); The inner ring of the bottom of the flange component 1 (210) is provided with an inner ring groove (211), and an outer ring groove (212) is provided at the bottom of the flange component 1 (210) and on the outer side of the inner ring groove (211). At the same time, a plug-in groove (213) is provided at the bottom of the flange component 1 (210) and on the side opposite to the inner ring groove (211) and the outer ring groove (212).

4. The auxiliary chamber variable diameter connection structure according to claim 3, characterized in that: An annular paddle (220) is rotatably mounted in the inner cavity of the outer annular groove (212), and a plurality of arc-shaped protrusions (221) are evenly distributed on the outer ring of the surface of the annular paddle (220).

5. The auxiliary chamber variable diameter connection structure according to claim 4, characterized in that: The elastic component (230) comprises a limit plate (231) for plugging the auxiliary chamber furnace drum (100) and the lower reducer flange assembly (200), and the limit plate (231) is installed in the inner cavity of the assembly chute (101), wherein a stabilizing support plate (232) is arranged on the upper part of the limit plate (231), a connecting rod (233) is arranged through the bottom of the surface of the limit plate (231), and an elastic member (234) is sleeved on the middle part of the surface of the connecting rod (233).

6. The auxiliary chamber variable diameter connection structure according to claim 5, characterized in that: The upper reducer flange assembly (300) comprises a flange component 2 (310) and a bolt component (320) arranged on the surface of the flange component 2 (310) for connection, wherein the bolt component (320) is in plurality and is arranged through the surface of the flange component 2 (310).

7. The auxiliary chamber variable diameter connection structure according to claim 6, characterized in that: The end of the flange component 2 (310) is provided with an annular base groove (311), and the inner surface of the flange component 2 (310) and the bottom of the outer surface of the extended auxiliary chamber tube (110) are provided with a plurality of limiting slots (312) in an annular array, and the limiting slots (312) are interconnected with the annular base groove (311), wherein the inner cavity of the annular base groove (311) is provided with a mixing disc body (330), and the end of the mixing disc body (330) is inlaid with an inner adjustment slot hole (332).

8. The auxiliary chamber variable diameter connection structure according to claim 7, characterized in that: The bottom of the mixing tray body (330) is provided with a plug-in base (340), wherein a plug-in plate (350) is provided through the end of the plug-in base (340), and the end of the plug-in plate (350) is connected to a guide rod (351), and the end of the mixing tray body (330) is provided with an arc-shaped track groove (331) adapted to the guide rod (351).

9. The auxiliary chamber variable diameter connection structure according to claim 8, characterized in that: Two mounting sleeves (401) with the same diameter are fixedly connected to the upper and lower ends of the observation window (400), and both ends of the mounting sleeve (401) are connected to sealing members (402).

10. The auxiliary chamber variable diameter connection structure according to claim 9, characterized in that: An annular spring (501) is embedded and installed on the inner surface of the sealing ring (500), a spring groove body (510) is provided in an annular manner at the bottom of the second flange component (310), and a spring groove body (520) is provided at the end of the first flange component (210).

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