Argon blowing connector for protective steel ladle

Abstract

The utility model discloses an argon blowing joint for a protective steel ladle, which comprises an upper joint and a protective cover arranged on the outer side of the upper joint, the bottom of the upper joint is detachably connected with a lower joint, the upper joint and the protective cover are connected to the bottom of the steel ladle, and two sides of the protective cover are connected with guide plates. The guide plate is connected with a connecting mechanism used for stably connecting the upper connector and the lower connector, the connecting mechanism comprises two positioning plates, two U-shaped rods and four springs, the positioning plates are movably connected into the guide plate, the U-shaped rods are used for driving the positioning plates to move in a reciprocating mode, and the springs are used for driving the positioning plates to move in the direction close to the lower connector. And a positioning groove matched with the end part of the positioning plate is formed in the outer side of the lower joint. The bottom of the upper connector is blocked, external impurities are effectively prevented from invading, the hidden danger of blocking is avoided, the purpose of well protecting the interior of the upper connector is achieved, and the upper connector is effectively prevented from being damaged by being used in cooperation with the protective cover.

Description

Technical Field

[0001] This utility model relates to the field of argon blowing connector technology, specifically a protective argon blowing connector for steel ladles. Background Technology

[0002] Argon blowing in a ladle, also known as argon blowing in molten steel, is a simple ladle refining method for degassing molten steel and removing non-metallic inclusions. The surrounding molten steel, driven by buoyancy, flows within the ladle, accelerating the melting of alloys and solvents added to the molten steel. This promotes uniformity of steel composition and temperature, and causes inclusions to float to the surface, removing non-metallic inclusions and harmful gases, thus achieving the purpose of refining the molten steel.

[0003] The argon blowing connector is a crucial structure in argon blowing for steel ladles. It consists of an upper connector and a lower connector, which are typically fixed together with bolts. When the lower connector is disassembled, the bottom of the upper connector is open, allowing external impurities to enter and potentially cause blockages, thus affecting steelmaking efficiency. Furthermore, the outer side of the upper connector is exposed, making it susceptible to significant damage from accidental impacts, thus shortening its service life. Utility Model Content

[0004] The purpose of this utility model is to provide a protective argon blowing connector for steel ladles, which can seal the bottom of the upper connector, effectively preventing the intrusion of external impurities, avoiding the risk of blockage, and providing good protection for the inside of the upper connector. In conjunction with the use of a protective cover, it can effectively prevent damage to the upper connector, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective argon blowing connector for a steel ladle, comprising an upper connector and a protective cover disposed on the outside of the upper connector, a lower connector detachably connected to the bottom of the upper connector, the upper connector and the protective cover being connected to the bottom of the steel ladle, guide plates being connected to both sides of the protective cover, and a connecting mechanism for securely connecting the upper connector and the lower connector being connected to the guide plates, the connecting mechanism comprising two positioning plates, two U-shaped rods, and four springs, the positioning plates being movably connected within the guide plates, the U-shaped rods being used to drive the positioning plates to reciprocate, the springs being used to drive the positioning plates to move towards the lower connector, and a positioning groove matching the end of the positioning plate being provided on the outside of the lower connector.

[0006] Preferably, the upper connector has a sealing surface on its inner side, and the lower connector is pressed against the sealing surface.

[0007] Preferably, the connecting mechanism further includes two lifting surfaces, two connecting surfaces, and two inclined surfaces. The inclined surfaces are disposed at the bottom of the positioning plate, and the connecting surfaces and lifting surfaces are disposed at the ends of the positioning plate, with the connecting surfaces connected to the lifting surfaces and inclined surfaces.

[0008] Preferably, the positioning groove is provided with a second inclined surface, which matches the lifting surface.

[0009] Preferably, the inclined surface is a smooth surface.

[0010] Preferably, the guide plate is provided with a sliding groove, and the positioning plate is slidably connected to the sliding groove.

[0011] Preferably, the spring is located inside the groove and is sleeved on the U-shaped rod, with both ends of the spring connected to the positioning plate and the guide plate.

[0012] Preferably, two plug rods are connected to the outer side of the lower connector, and a socket is connected to the bottom of the guide plate. The socket has a slot that matches the plug rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by providing a connecting mechanism, pushes the lower connector upwards, causing the top of the lower connector to slide relative to the inclined surface of the positioning plate, thus moving the two positioning plates away from each other. The insertion rod is inserted into the socket, and the spring is gradually compressed until the lower connector presses against the upper connector. At this point, the end of the positioning plate presses against the positioning groove, achieving positioning and locking of the lower connector, improving the stability of the connection between the lower and upper connectors. When disassembling the lower connector, pulling the two U-shaped rods away from each other causes the U-shaped rods to drive the positioning plate to move, separating the positioning plate from the positioning groove, thus loosening the lower connector. Then, pulling out the lower connector releases the two U-shaped rods, and the compressed spring pushes the positioning plate forward, connecting the two positioning plates together, thereby sealing the bottom of the upper connector. This effectively prevents external impurities from entering, avoiding potential blockages and providing good protection for the interior of the upper connector. Combined with the use of a protective cover, it effectively prevents damage to the upper connector. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the positioning plate and the lower connector of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the upper and lower connectors of this utility model;

[0017] Figure 4 This is a schematic diagram of the upper connector structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the lower connector structure of this utility model.

[0019] In the diagram: 1. Protective cover; 2. Guide plate; 3. Lower connector; 4. Insert rod; 5. Socket; 6. U-shaped rod; 7. Angled surface one; 8. Positioning plate; 9. Slot; 10. Upper connector; 11. Sealing surface; 12. Positioning groove; 13. Slide groove; 14. Spring; 15. Lifting surface; 16. Connecting surface; 17. Angled surface two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 5 This utility model provides a protective argon blowing connector for steel ladles, including an upper connector 10 and a protective cover 1 disposed on the outside of the upper connector 10. The protective cover 1 can effectively protect the upper connector 10 and prevent damage to the upper connector 10, especially during the transportation of steel ladles, to avoid damage caused by external impacts. A lower connector 3 is detachably connected to the bottom of the upper connector 10. The upper connector 10 and the protective cover 1 are connected to the bottom of the steel ladle. Guide plates 2 are connected to both sides of the protective cover 1. The guide plates 2 are connected to a connection mechanism for the upper connector 10 and the lower connector 3 to be securely connected. The connection mechanism includes two positioning plates 8, two U-shaped rods 6, and four springs 14. The positioning plates 8 are movably connected inside the guide plates 2. The U-shaped rods 6 are used to drive the positioning plates 8 to reciprocate. The springs 14 are used to drive the positioning plates 8 to move towards the lower connector 3. The outer side of the lower connector 3 is provided with a positioning groove 12 that matches the end of the positioning plate 8.

[0022] The upper connector 10 is fixedly connected to the bottom of the ladle, and the upper connector 10 is connected to the gas guide pipe at the bottom of the ladle. The external gas supply unit is connected to the lower connector 3 to deliver argon gas into the ladle through the lower connector 3, the upper connector 10, and the gas guide pipe, thereby realizing the gas guiding operation and facilitating the purification of molten steel.

[0023] During the docking process between the lower connector 3 and the upper connector 10, the lower connector 3 is pushed upward, causing the top of the lower connector 3 to slide relative to the inclined surface 7 of the two positioning plates 8, driving the two positioning plates 8 away from each other, and the spring 14 is gradually compressed. Until the lower connector 3 is pressed tightly against the upper connector 10, the end of the positioning plate 8 is pressed against the positioning groove 12, realizing the positioning and locking of the lower connector 3, and improving the stability of the connection between the lower connector 3 and the upper connector 10.

[0024] The upper connector 10 has a sealing surface 11 on its inner side. When the lower connector 3 and the upper connector 10 are connected, the lower connector 3 is pressed against the sealing surface 11 to improve the sealing performance of the connection between the two.

[0025] The connecting mechanism also includes two lifting surfaces 15, two connecting surfaces 16, and two inclined surfaces 7. Inclined surfaces 7 are located at the bottom of the positioning plate 8, while the connecting surfaces 16 and lifting surfaces 15 are located at the ends of the positioning plate 8, and the connecting surfaces 16 are connected to the lifting surfaces 15 and inclined surfaces 7. When the lower connector 3 is connected to the upper connector 10, the compressed spring 14 applies a forward thrust to the positioning plate 8, causing the end of the positioning plate 8 to press against the positioning groove 12. The lifting surfaces 15 press against the inclined surfaces 17, applying an upward thrust to the lower connector 3, causing the lower connector 3 to press against the upper connector 10. In conjunction with the use of the sealing surface 11, the stability and tightness of the connection between the lower connector 3 and the upper connector 10 are improved.

[0026] When the connector 3 is disassembled, the compression spring 14 pushes the positioning plate 8 forward, so that the two positioning plates 8 are connected, that is, the two connecting surfaces 16 are connected, thereby sealing the bottom of the upper connector 10, effectively preventing external impurities from entering and avoiding the risk of blockage.

[0027] The connecting surface 16 is a sealing plane, and when the two connecting surfaces 16 are connected, the spring 14 also has a certain amount of compression, which applies a certain forward thrust to the positioning plate 8, thereby improving the tightness of the connection between the two positioning plates 8 and preventing external impurities from entering the interior of the upper connector 10 from the connection between the two.

[0028] The positioning plate 8 is slidably connected to the bottom of the upper connector 10. When the two positioning plates 8 are connected, external impurities can be prevented from entering the interior of the upper connector 10 from the connection between the positioning plate 8 and the upper connector 10.

[0029] The positioning groove 12 is provided with a second inclined surface 17, which matches the lifting surface 15.

[0030] The inclined surface 7 is a smooth surface, which can reduce the contact friction between the positioning plate 8 and the lower connector 3 during the upward movement of the lower connector 3.

[0031] The guide plate 2 is provided with a slide groove 13, and the positioning plate 8 is slidably connected to the slide groove 13 to improve the stability of the reciprocating movement of the positioning plate 8.

[0032] Spring 14 is located inside slide groove 13 and is sleeved on U-shaped rod 6. Both ends of spring 14 are connected to positioning plate 8 and guide plate 2.

[0033] Two insert rods 4 are connected to the outer side of the lower connector 3, and a socket 5 is connected to the bottom of the guide plate 2. The socket 5 has a slot 9, which matches the insert rods 4. The insert rods 4 and the positioning groove 12 are on the same vertical plane. When installing the lower connector 3, the insert rods 4 are aligned with the positioning groove 12, and the lower connector 3 is pushed upward. The insert rods 4 and the slot 9 slide relative to each other, which facilitates the precise docking of the end of the positioning plate 8 with the positioning groove 12.

[0034] Working principle: When installing the lower connector 3, push the lower connector 3 upward, causing its top to slide relative to the two inclined surfaces 7. The insertion rod 4 is inserted into the socket 5, guiding the upward movement of the lower connector 3. The lower connector 3 drives the two positioning plates 8 away from each other, and the spring 14 is gradually compressed until the lower connector 3 aligns with the upper connector 10. At this point, the two positioning plates 8 press against the corresponding positioning grooves 12, and the spring 14 is compressed, applying an upward pushing force to the lower connector 3. Combined with the use of the sealing surface 11, this improves the stability and tightness of the connection between the lower connector 3 and the upper connector 10. When disassembling the lower connector 3, pull the two U-shaped rods 6 away from each other. The U-shaped rods 6 drive the positioning plates 8 to move, separating them from the corresponding positioning grooves 12, thus loosening the lower connector 3. Then, pull the lower connector 3 downward to disassemble it. Then, the U-shaped rod 6 is released, and the compressed spring 14 pushes the positioning plate 8 to move, connecting the two positioning plates 8 and sealing the bottom of the upper connector 10. This effectively prevents external impurities from entering, avoids the risk of blockage, and provides good protection for the inside of the upper connector 10. Combined with the use of the protective cover 1, this effectively prevents damage to the upper connector 10 and extends its service life.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective argon blowing connector for a steel ladle, comprising an upper connector (10) and a protective cover (1) disposed outside the upper connector (10), wherein a lower connector (3) is detachably connected to the bottom of the upper connector (10), characterized in that, The upper connector (10) and the protective cover (1) are connected to the bottom of the ladle. The protective cover (1) is connected to guide plates (2) on both sides. The guide plates (2) are connected to a connecting mechanism for the upper connector (10) and the lower connector (3) to be connected securely. The connecting mechanism includes two positioning plates (8), two U-shaped rods (6), and four springs (14). The positioning plates (8) are movably connected inside the guide plates (2). The U-shaped rods (6) are used to drive the positioning plates (8) to move back and forth. The springs (14) are used to drive the positioning plates (8) to move closer to the lower connector (3). The lower connector (3) is provided with a positioning groove (12) that matches the end of the positioning plate (8) on its outer side.

2. The protective argon blowing connector for steel ladles according to claim 1, characterized in that, The upper connector (10) has a sealing surface (11) on its inner side, and the lower connector (3) is pressed against the sealing surface (11).

3. The protective argon blowing connector for steel ladles according to claim 1, characterized in that, The connecting mechanism also includes two lifting surfaces (15), two connecting surfaces (16), and two inclined surfaces (7). The inclined surfaces (7) are located at the bottom of the positioning plate (8), and the connecting surfaces (16) and lifting surfaces (15) are located at the ends of the positioning plate (8). The connecting surfaces (16) are connected to the lifting surfaces (15) and inclined surfaces (7).

4. The protective argon blowing connector for steel ladles according to claim 3, characterized in that, The positioning groove (12) is provided with a second inclined surface (17), which matches the lifting surface (15).

5. The protective argon blowing connector for a steel ladle according to claim 3, characterized in that, The inclined plane (7) is a smooth surface.

6. The protective argon blowing connector for steel ladles according to claim 1, characterized in that, The guide plate (2) is provided with a slide groove (13), and the positioning plate (8) is slidably connected to the slide groove (13).

7. The protective argon blowing connector for a steel ladle according to claim 6, characterized in that, The spring (14) is located in the groove (13) and is sleeved on the U-shaped rod (6). The two ends of the spring (14) are connected to the positioning plate (8) and the guide plate (2).

8. The protective argon blowing connector for steel ladles according to claim 1, characterized in that, The lower connector (3) has two plug rods (4) connected to its outer side, and the bottom of the guide plate (2) is connected to a socket (5). The socket (5) has a slot (9) inside, and the slot (9) matches the plug rods (4).

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