Vacuum box cover locking mechanism

Abstract

The utility model discloses a vacuum ladle top cover locking mechanism, including fixed arm, the fixed arm symmetry sets up in the outside of vacuum ladle and is located the below of lock arm, the lock arm installs in the outside of top cover, the top cover covers the upper end of vacuum ladle, the rotatable pivot is provided with on the fixed arm perpendicular to both sides end face, the both ends of pivot are provided with tension spring respectively, and the other end of two tension springs is connected with the both ends of inverted U type muscle respectively, and the inverted U type muscle is buckled on the lock arm, and this vacuum ladle top cover locking mechanism effectively improves the sealing property of vacuum ladle, avoids the situation that appears sealing failure in the long -term use process, guarantees the security of aluminium liquid transportation process.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic aluminum technology, specifically a vacuum lifting bale top cover locking mechanism. Background Technology

[0002] In the production process of electrolytic aluminum, molten aluminum needs to be transported to one end of the smelting furnace through a vacuum ladle, and then extracted from the vacuum ladle into the smelting furnace for melting.

[0003] During transportation, in order to prevent molten aluminum from spilling, the top of the vacuum ladle needs to be covered with a top cover. Then, ordinary steel bars installed on the outside of the vacuum ladle are hung on the locking arm at the top of the top cover. However, during long-term use, the steel bars will deform due to heat, causing them to fall off, which will lead to the failure of the cover seal and safety hazards such as molten aluminum spillage and splashing during transportation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a vacuum lifting bag top cover locking mechanism, which effectively improves the sealing performance of the vacuum lifting bag, avoids sealing failure during long-term use, ensures the safety of aluminum liquid transportation, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum lifting bag top cover locking mechanism, including a fixed arm, the fixed arm being symmetrically arranged on the outer side of the vacuum lifting bag and located below the locking arm, the locking arm being installed on the outer side of the top cover, the top cover covering the upper end of the vacuum lifting bag, a rotatable shaft being provided on the fixed arm perpendicular to its two end faces, a tension spring being provided at both ends of the shaft, the other ends of the two tension springs being connected to both ends of an inverted U-shaped rib, the inverted U-shaped rib being fastened to the locking arm.

[0006] As a preferred technical solution of this utility model, the outer side of the vacuum lifting bag is symmetrically provided with a fixed ear plate assembly, and the upper end of the fixed arm is fixedly connected to the fixed ear plate assembly by a locking bolt.

[0007] As a preferred embodiment of this utility model, a sleeve is provided on the fixed arm, and the rotating shaft is rotatably connected inside the sleeve.

[0008] As a preferred embodiment of this utility model, the included angle between the two tension springs is 30° to 60°.

[0009] As a preferred embodiment of this utility model, both the inverted U-shaped rib and the end of the rotating shaft are welded with connecting rings, and the two ends of the tension spring are respectively fixed on the corresponding connecting rings.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the vacuum lifting bag top cover locking mechanism is reasonably designed and ingeniously conceived. By applying tension force to the inverted U-shaped rib through a tension spring, even if the inverted U-shaped rib is deformed by heat during long-term use, the top cover can still be tightly fastened to the vacuum lifting bag under the action of the tension spring. Moreover, the tension spring has elastic buffering performance, which can absorb external impact force, improve structural stability, and achieve excellent sealing performance of the top cover. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the present utility model; Figure 3 for Figure 2 The left view.

[0012] In the diagram: 1. Fixed arm, 2. Locking bolt, 3. Fixed ear plate assembly, 4. Sleeve, 5. Rotating shaft, 6. Tension spring, 7. Inverted U-shaped rib, 8. Vacuum lifting bag, 9. Top cover, 10. Locking arm, 11. Connecting ring. Detailed Implementation

[0013] 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 (for ease of description and understanding, hereinafter referred to as...). Figure 1 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0014] Please see Figure 1-3 This utility model provides a technical solution: a vacuum lifting bag top cover locking mechanism, including a fixed arm 1, which is symmetrically arranged on the outer side of the vacuum lifting bag 8 and located below the locking arm 10. The locking arm 10 is installed on the outside of the upper adjustment rod of the top cover 9. The top cover 9 covers the upper end of the opening of the vacuum lifting bag 8. A rotatable shaft 5 is arranged vertically on both ends of the fixed arm 1, and the shaft 5 is horizontally arranged. Tension springs 6 are respectively arranged at both ends of the shaft 5. The other ends of the two tension springs 6 are respectively connected to the two ends of the inverted U-shaped ribs 7. The inverted U-shaped ribs 7 are fastened on the locking arm 10. Through the tension of the tension springs 6, the inverted U-shaped ribs 7 are pressed tightly against the concave position of the locking arm 10. Even if the inverted U-shaped ribs 7 are deformed during long-term use, the top cover 9 is still guaranteed to cover the upper end of the vacuum lifting bag under the action of the tension springs 6. Moreover, the tension springs 6 have elastic buffering performance, which can effectively absorb external impact force and improve structural stability, thereby further ensuring the stability of the top cover 9 during transportation.

[0015] In order to securely fix the position of the fixed arm 1, the outer side of the vacuum lifting bag 8 is symmetrically provided with fixed ear plate group 3, and the upper end of the fixed arm 1 is fixedly connected to the fixed ear plate group 3 by locking bolt 2.

[0016] To ensure the smooth rotation of the rotating shaft 5, a sleeve 4 is provided on the fixed arm 1, and the rotating shaft 5 is rotatably connected inside the sleeve 4.

[0017] To improve the pressure stability of the inverted U-shaped rib 7 on the locking arm 10, the included angle of the two tension springs 6 is 30-60°, forming a stable mechanical connection structure that not only ensures the rigidity of the connection part, but also facilitates disassembly and maintenance in the later stage.

[0018] To facilitate the connection of the tension spring 6, connecting rings 11 are welded to the ends of the inverted U-shaped rib 7 and the rotating shaft 5, and the two ends of the tension spring 6 are respectively fixed on the corresponding connecting rings 11.

[0019] When in use: Use a pry bar or other tools to lift the inverted U-shaped rib 7 so that the inverted U-shaped rib 7 is above the locking arm 10. At this time, under the action of the tension spring 6, the inverted U-shaped rib 7 is pressed tightly on the locking arm 10, thereby ensuring that the top cover 9 is firmly covered on the vacuum lifting bag 8 to prevent aluminum leakage.

[0020] The parts of the utility model not described in detail are prior art. Although embodiments of the utility model 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 utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum lifting bag top cover locking mechanism, characterized in that: Includes a fixed arm (1), which is symmetrically arranged on the outer side of the vacuum lifting bag (8) and located below the locking arm (10). The locking arm (10) is installed on the outside of the top cover (9), which covers the upper end of the vacuum lifting bag (8). The fixed arm (1) is provided with a rotatable shaft (5) perpendicular to its two end faces. The two ends of the shaft (5) are respectively provided with tension springs (6). The other ends of the two tension springs (6) are respectively connected to the two ends of the inverted U-shaped ribs (7). The inverted U-shaped ribs (7) are fastened to the locking arm (10).

2. The vacuum lifting bag top cover locking mechanism according to claim 1, characterized in that: The outer side of the vacuum lifting bag (8) is symmetrically provided with a fixing ear plate group (3), and the upper end of the fixing arm (1) is fixedly connected to the fixing ear plate group (3) by a locking bolt (2).

3. The vacuum lifting bag top cover locking mechanism according to claim 1, characterized in that: A sleeve (4) is provided on the fixed arm (1), and the rotating shaft (5) is rotatably connected inside the sleeve (4).

4. The vacuum lifting bag top cover locking mechanism according to claim 1, characterized in that: The included angle between the two tension springs (6) is 30 to 60°.

5. A vacuum lifting bag top cover locking mechanism according to claim 1 or 4, characterized in that: The ends of the inverted U-shaped rib (7) and the rotating shaft (5) are both welded with connecting rings (11), and the two ends of the tension spring (6) are respectively fixed on the corresponding connecting rings (11).

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