Sealing structure for double propellers of push-pull boat

By designing the sealing structure of the push-pull boat slurry for LPCVD equipment, using clamp connection and movable chunk design, the problem of insufficient sealing of the push-pull boat slurry is solved, achieving more efficient sealing effect and safer operation .

CN222499354UActive Publication Date: 2025-02-18WUXI SONGYU TECH CO LTD
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Patent Information

Application Number
CN202420334177.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-22
Publication Date
2025-02-18
Estimated Expiration
2034-02-22

AI Technical Summary

Technical Problem

The tightness of the push-pull boat slalom of the LPCVD equipment is insufficient, resulting in short service life, frequent disassembly and serious air leakage.

Method used

A sealing structure for push-pull boat sculls is designed, including a receptacle pipe, a second flange, a sealing body and a pressing block. The first flange and the second flange are connected by a clamp, and the seal is abutted between the flange, and the pressing block can be moved to fasten the push-pull boat paddle to achieve sealing.

Benefits of technology

The number of sealing rings is reduced, the efficiency of replacing pipes and disassembly parts is improved, and the probability of air leakage is significantly reduced. Through the design of positioning plates and bolts, the paddles are fixed and the safety hazards caused by movement are avoided.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sealing structure for double propellers of a push-pull boat, which comprises an accommodating pipe, a sealing ring and a sealing ring, wherein the propellers of the push-pull boat are arranged in the accommodating pipe; the second flange is connected with the containing pipe, and a through hole communicated with the interior of the containing pipe is formed in the second flange; the sealing body comprises a first flange in butt joint with the second flange, a sealing piece connected between the first flange and the second flange in an abutting mode and a pressing block movably arranged in the through hole. The pressing block can stretch into the containing pipe to abut against the push-pull boat oar. The sealing structure is used for sealing the push-pull boat paddle in the accommodating pipe, so that the use number of sealing rings can be reduced, the efficiency of pipe replacement and part disassembly is improved, and the probability of air leakage can be effectively reduced. Moreover, according to the sealing structure, the pressing block is pushed to move in the through hole by screwing the bolt, so that the pressing block tightly presses the push-pull boat oar in the containing pipe, and the push-pull boat oar is fixed. The sealing structure is convenient to disassemble and assemble, high in efficiency, good in sealing performance and stable in sealing.
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Description

Technical Field

[0001] The utility model relates to a sealing structure for double propellers of a push-pull boat, belonging to the technical field of photovoltaic cell manufacturing. Background Art

[0002] Solar photovoltaic cells are a new type of clean energy cell that converts sunlight directly into electrical energy. Currently, silicon photovoltaic cells based on silicon are commonly used, including single-crystal silicon, polycrystalline silicon and amorphous silicon photovoltaic cells. In the preparation process of solar photovoltaic cells, silicon wafers need to go through processes such as texturing, diffusion, etching, coating and printing in sequence. In the coating process, LPCVD equipment is often used to coat silicon wafers.

[0003] The push-pull boat structure of the LPCVD equipment is one of the core structures of the equipment. The silicon carbide boat holder is placed on the double paddles of the push-pull boat by a manipulator. The push-pull boat delivers the silicon wafers into the furnace body through the lateral movement module and seals the furnace body by pressing the furnace door. However, the furnace door is located on the push-pull boat, and the most important technical requirement is the sealing of the double paddles of the push-pull boat. Due to the service life of the sealing ring and the high frequency of replacement, air leakage will inevitably occur at the double paddles of the push-pull boat. Utility Model Content

[0004] The utility model aims to provide a sealing structure for a push-pull boat with two propellers, which can seal the two propellers of the push-pull boat, thereby reducing the number of sealing rings used, increasing the efficiency of replacing pipes and disassembling parts, and effectively reducing the probability of air leakage.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a sealing structure for double propellers of a push-pull boat, comprising:

[0007] A containing tube, in which the push-pull boat paddle is placed;

[0008] a second flange connected to the accommodating tube, wherein the second flange is provided with a through hole communicating with the interior of the accommodating tube; and

[0009] The sealing body includes a first flange connected to the second flange, a sealing member abutting between the first flange and the second flange, and a pressure block movably arranged in the through hole; wherein the pressure block can extend into the accommodating tube and abut against the push-pull boat paddle.

[0010] In one embodiment of the utility model, a positioning plate is connected inside the second flange, the positioning plate is provided with a threaded hole, a bolt is connected inside the threaded hole, and an end of the bolt abuts against the pressing block to drive the pressing block to move.

[0011] In one embodiment of the utility model, the positioning plate is further provided with a mounting hole, in which a bolt is provided, and the positioning plate is detachably connected to the second flange via the bolt in the mounting hole.

[0012] In an implementation manner of the present utility model, a center ring is provided between the first flange and the second flange, and the sealing element is sleeved outside the center ring.

[0013] In an implementation manner of the present invention, the first flange and the second flange are connected via a clamp.

[0014] In an implementation manner of the present utility model, the clamp is sleeved outside the sealing element.

[0015] In one embodiment of the utility model, the accommodating tube is a hollow tube, one end of which is provided with an opening, and the other end is provided with a sealing plate, and the push-pull boat paddle is inserted into the accommodating tube from the opening.

[0016] In one embodiment of the utility model, a plurality of push-pull boat paddles correspond one-to-one to a plurality of the accommodating tubes, and the shape of the inner wall of the accommodating tube is adapted to the shape of the outer wall of the push-pull boat paddles.

[0017] In one embodiment of the utility model, the containing tube is connected to a plurality of second flanges, and the plurality of second flanges are butted one by one with the plurality of first flanges, the push-pull boat paddles are inserted into the containing tube, and the bolts in the threaded holes of the plurality of positioning plates drive the plurality of pressure blocks to move, so that the plurality of pressure blocks extend into the containing tube and abut against the push-pull boat paddles.

[0018] In one implementation of the present invention, the sealing member is a sealing ring.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a sealing structure for a push-pull boat double propeller, in which the first flange and the second flange are tightly connected by a clamp, so that the seal is tightly abutted between the first flange and the second flange, and the through hole in the second flange is blocked by the seal, the first flange and the clamp, so as to seal the slot or opening on the accommodating tube, thereby sealing the push-pull boat propeller in the accommodating tube, which can reduce the number of sealing rings used, increase the efficiency of disassembling parts for changing tubes, and effectively reduce the probability of air leakage. In addition, the sealing structure fixes the positioning plate in the second flange, and the positioning plate is threadedly connected with bolts. By screwing the bolts, the pressure block can be pushed to move in the through hole, so that the pressure block presses the push-pull boat propeller in the accommodating tube, thereby fixing the push-pull boat propeller and avoiding the safety hazards caused by the movement of the propeller. The sealing structure is easy to disassemble and assemble, with high efficiency, and has good sealing performance and stable sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of the sealing structure provided by the utility model.

[0022] Figure 2 This is a cross-sectional view of the sealing structure provided by the utility model.

[0023] Figure 3 This is an exploded view of the sealing body provided by the utility model being located on the accommodating tube.

[0024] Figure 4 for Figure 3 A partial enlarged view of the middle sealing body and the containing tube.

[0025] Figure 5 for Figure 4 A cross-sectional view of the sealing body and the containing tube.

[0026] Figure 6 This is a three-dimensional diagram of the sealing body provided by the utility model.

[0027] Figure 7 This is a bottom view of the sealing body provided by the utility model.

[0028] Figure 8 for Figure 7 AA section view in.

[0029] In the figure, 1, first flange; 2, clamp; 3, center ring; 4, seal; 5, positioning plate; 51, mounting hole; 52, threaded hole; 6, pressure block; 7, second flange; 8, through hole; 100, sealing body; 200, accommodating tube; 201, opening; 202, sealing plate. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The LPCVD equipment has two push-pull boat propellers, which are called push-pull boat double propellers. If the push-pull boat double propellers are placed in two receiving tubes 200 respectively without being fixed, the boat propellers will move, posing a great safety hazard. Adding a fixing structure requires slotting or opening holes in the receiving tube 200, which requires adding a sealing structure.

[0034] This embodiment provides a sealing structure for a double propeller of a push-pull boat, such as Figure 1-8 As shown, the sealing structure includes:

[0035] The accommodating tube 200, in which the push-pull boat paddle is placed;

[0036] a second flange 7 connected to the accommodating tube 200 , wherein the second flange 7 is provided with a through hole 8 communicating with the interior of the accommodating tube 200 ; and

[0037] The sealing body 100 includes a first flange 1 connected to the second flange 7, a sealing member 4 abutting between the first flange 1 and the second flange 7, and a pressure block 6 movably arranged in the through hole 8; wherein the pressure block 6 can extend into the accommodating tube 200 and abut against the push-pull boat paddle.

[0038] The second flange 7 is connected to the accommodating tube 200 by welding or other means, and the through hole 8 in the second flange 7 is connected to the slot or opening on the accommodating tube 200 so that the pressing block 6 can extend into the accommodating tube 200 .

[0039] Optionally, in some embodiments, a positioning plate 5 is connected inside the second flange 7 , the positioning plate 5 is provided with a threaded hole 52 , a bolt is connected inside the threaded hole 52 , and an end of the bolt abuts against the pressing block 6 to drive the pressing block 6 to move.

[0040] The positioning plate 5 in this embodiment is fixed in the second flange 7. Bolts are threadedly connected in the positioning plate 5. By screwing the bolts, the pressure block 6 can be pushed to move in the through hole 8, so that the pressure block 6 presses the push-pull paddle in the accommodating tube 200, thereby fixing the push-pull paddle and avoiding safety hazards caused by the movement of the paddle.

[0041] Optionally, in some embodiments, the positioning plate 5 is further provided with a mounting hole 51 , in which a bolt is provided, and the positioning plate 5 is detachably connected to the second flange 7 via the bolt in the mounting hole 51 .

[0042] Optionally, the threaded hole 52 is arranged at the center position of the pressing block 6, the mounting holes 51 are arranged on both sides of the threaded hole 52, and the second flange 7 is also provided with a hole (not shown in the figure) that is docked with the mounting hole 51. The positioning plate 5 and the second flange 7 are detachably connected by bolts, which is convenient for disassembly and assembly.

[0043] Optionally, in some embodiments, a center ring 3 is provided between the first flange 1 and the second flange 7 , and the sealing member 4 is sleeved outside the center ring 3 .

[0044] The center ring 3 provided in this embodiment plays a role in supporting the sealing member 4 , so that the sealing member 4 is sleeved outside the center ring 3 and abuts between the first flange 1 and the second flange 7 .

[0045] Optionally, in some embodiments, the first flange 1 and the second flange 7 are connected via a clamp 2. The method of connecting the two flanges via the clamp 2 is convenient for assembly and disassembly and has high efficiency.

[0046] Optionally, in some embodiments, the clamp 2 is sleeved outside the sealing member 4 .

[0047] Optionally, the sealing member 4 is a sealing ring.

[0048] The clamp 2 provided in this embodiment tightly connects the first flange 1 and the second flange 7, so that the seal 4 is tightly abutted between the first flange 1 and the second flange 7, and the through hole 8 in the second flange 7 is blocked by the seal 4, the first flange 1 and the clamp 2 to achieve sealing of the groove or opening on the containing tube 200, thereby sealing the push-pull boat paddle in the containing tube 200, which can reduce the number of sealing rings used, increase the efficiency of replacing tubes and disassembling parts, and effectively reduce the probability of air leakage.

[0049] Optionally, in some embodiments, the containing tube 200 is a hollow tube having an opening 201 at one end and a sealing plate 202 at the other end, wherein the sealing plate 202 is used to seal the other end of the hollow tube, and the push-pull boat paddle is inserted into the containing tube 200 from the opening 201 .

[0050] Preferably, the accommodating tube 200 is a square tube so as to match the shape of the push-pull boat paddle.

[0051] Optionally, in some embodiments, a plurality of push-pull boat paddles correspond one-to-one to a plurality of the accommodating tubes 200 , and the shape of the inner wall of the accommodating tube 200 is adapted to the shape of the outer wall of the push-pull boat paddles.

[0052] In this embodiment, the number of the push-pull boat paddles is two, so two accommodating tubes 200 are provided, and the two push-pull boat paddles are respectively inserted into the two accommodating tubes 200 .

[0053] Optionally, in some embodiments, the containing tube 200 is connected to a plurality of second flanges 7, and the plurality of second flanges 7 are docked one by one with the plurality of first flanges 1, and the push-pull boat paddles are inserted into the containing tube 200, and the bolts in the threaded holes 52 of the plurality of positioning plates 5 drive the plurality of pressing blocks 6 to move, so that the plurality of pressing blocks 6 extend into the containing tube 200 and abut against the push-pull boat paddles.

[0054] In this embodiment, a plurality of sealing bodies 100 are disposed on each accommodating tube 200, and a plurality of pressing blocks 6 on the plurality of sealing bodies 100 press the push-pull boat paddle from different positions, so that the push-pull boat paddle is tightly fixed in the accommodating tube 200 and does not move.

[0055] When in use, insert the push-pull boat paddle into the accommodating tube 200 and then insert the pressing block 6. The pressing block 6 is placed on the paddle and is initially in a loose state. Cover the positioning plate 5 and fix it inside the second flange 7. The positioning plate 5 is provided with a threaded hole 52 in the middle. Bolts are locked to hold the pressing block 6. The push-pull boat paddle is tightened by the pressing block 6. After the center ring 3 and the seal 4 are placed, the first flange 1 is covered and the clamp 2 is tightened to achieve sealing.

[0056] The utility model provides a sealing structure for a push-pull boat double paddle, wherein the first flange 1 is tightly connected to the second flange 7 by a clamp 2, so that the seal 4 is tightly abutted between the first flange 1 and the second flange 7, and the through hole 8 in the second flange 7 is blocked by the seal 4, the first flange 1 and the clamp 2, so as to seal the slot or opening on the accommodating tube 200, thereby sealing the push-pull boat paddle in the accommodating tube 200, which can reduce the number of sealing rings used, increase the efficiency of replacing the tube and disassembling parts, and effectively reduce the probability of air leakage. In addition, the sealing structure fixes the positioning plate 5 in the second flange 7, and the positioning plate 5 is threadedly connected with a bolt, and by screwing the bolt, the pressing block 6 can be pushed to move in the through hole 8, so that the pressing block 6 presses the push-pull boat paddle in the accommodating tube 200, thereby fixing the push-pull boat paddle and avoiding the safety hazards caused by the movement of the boat paddle. The sealing structure is convenient to disassemble and assemble, has high efficiency, and has good sealing performance and stable sealing.

[0057] The protection scope of the present invention is not limited to the above-mentioned embodiments. Any modifications, equivalent substitutions and improvements that can be made by professionals in the field within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing structure for a double propeller of a push-pull boat, characterized in that: include An accommodating tube (200) in which the push-pull boat paddle is placed; A second flange (7) connected to the accommodating tube (200), wherein the second flange (7) is provided with a through hole (8) communicating with the interior of the accommodating tube (200); and The sealing body (100) comprises a first flange (1) connected to the second flange (7), a sealing member (4) abutting between the first flange (1) and the second flange (7), and a pressure block (6) movably arranged in the through hole (8); wherein the pressure block (6) can extend into the accommodating tube (200) and abut against the push-pull boat paddle.

2. A sealing structure for a double propeller of a push-pull boat according to claim 1, characterized in that: A positioning plate (5) is connected to the second flange (7), the positioning plate (5) is provided with a threaded hole (52), a bolt is connected to the threaded hole (52), and the end of the bolt abuts against the pressing block (6) to drive the pressing block (6) to move.

3. A sealing structure for a double propeller of a push-pull boat according to claim 2, characterized in that: The positioning plate (5) is also provided with a mounting hole (51), in which a bolt is provided, and the positioning plate (5) is detachably connected to the second flange (7) via the bolt in the mounting hole (51).

4. A sealing structure for a double propeller of a push-pull boat according to claim 1, characterized in that: A center ring (3) is arranged between the first flange (1) and the second flange (7), and the sealing member (4) is sleeved outside the center ring (3).

5. A sealing structure for a double propeller of a push-pull boat according to claim 4, characterized in that: The first flange (1) and the second flange (7) are connected via a clamp (2).

6. A sealing structure for a double propeller of a push-pull boat according to claim 5, characterized in that: The clamp (2) is sleeved outside the sealing component (4).

7. A sealing structure for a double propeller of a push-pull boat according to claim 1, characterized in that: The accommodating tube (200) is a hollow tube, one end of which is provided with an opening (201) and the other end of which is provided with a sealing plate (202), and the push-pull boat paddle is inserted into the accommodating tube (200) through the opening (201).

8. A sealing structure for a double propeller of a push-pull boat according to claim 2, characterized in that: A plurality of push-pull boat paddles correspond one to one with a plurality of the accommodating tubes (200), and the shape of the inner wall of the accommodating tube (200) matches the shape of the outer wall of the push-pull boat paddle.

9. A sealing structure for a double propeller of a push-pull boat according to claim 8, characterized in that: The containing tube (200) is connected to a plurality of second flanges (7), and the plurality of second flanges (7) are connected one by one with the plurality of first flanges (1). The push-pull boat paddle is inserted into the containing tube (200), and the bolts in the threaded holes (52) of the plurality of positioning plates (5) drive the plurality of pressing blocks (6) to move, so that the plurality of pressing blocks (6) extend into the containing tube (200) and abut against the push-pull boat paddle.

10. A sealing structure for a double propeller of a push-pull boat according to any one of claims 1 to 9, characterized in that: The sealing element (4) is a sealing ring.