Steel ladle air brick fixing mechanism

Abstract

The utility model belongs to the technical field of air brick fixing, and discloses a steel ladle air brick fixing mechanism which comprises a ladle bottom plate, an air brick body is inserted into the steel ladle bottom plate, an operating rod is fixedly connected to the bottom end of the air brick body, a spline is fixedly connected to the top of the operating rod in a sleeved mode, and the operating rod is fixedly connected with the steel ladle bottom plate. The top of the operating rod is fixedly sleeved with a lower baffle, the outer side of the operating rod is slidably sleeved with a limiting block, the outer side of the operating rod is slidably sleeved with an upper locking block and a lower locking block, the bottom end of the steel ladle bottom plate is fixedly connected with two lower supports, and the outer side of the operating rod is sleeved with a supporting plate. Through the design of the upper locking block, the lower locking block and the supporting plate, after an operator fixes the supporting plate, the pressure between the lower locking block and the upper locking block is increased by rotating the lower locking block until the operator cannot smoothly rotate the lower locking block, and the lower locking block and the upper locking block are in a self-locking state, so that the air brick body is fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of air brick fixing, in particular to a ladle air brick fixing mechanism. Background Art

[0002] The fixing mechanism of the ladle air brick is generally fixed by tightening with three-point screws, which is difficult to assemble. In addition, during the smelting process, the screws may be disengaged due to alternating hot and cold conditions, which has low safety.

[0003] As described in the authorized patent CN205289725U, three clamping platforms align the inner and outer three jaws, preventing safety hazards caused by misalignment resulting in a small force-bearing area. The top screw head features four 20mm circular holes, which are used to tighten steel rods. Steel rollers are inserted into the holes for further tightening, significantly improving safety. The designed fixing device is relatively simple in structure and can withstand a certain amount of longitudinal force. However, the coordination between the outer and inner three jaws makes it lack sufficient strength to withstand lateral forces, making it prone to falling off. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a fixing mechanism for ladle air bricks.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ladle air brick fixing mechanism, comprising a ladle bottom plate, an air brick body is inserted into the interior of the ladle bottom plate, the bottom end of the air brick body is fixedly connected to an operating rod, the top of the operating rod is fixedly sleeved with a spline, the top of the operating rod is fixedly sleeved with a lower baffle, the outer side of the operating rod is slidably sleeved with a limit block, the outer side of the operating rod is slidably sleeved with an upper locking block and a lower locking block, the bottom end of the ladle bottom plate is fixedly connected to two lower supports, the outer side of the operating rod is sleeved with a support plate, and the bottom end of the ladle bottom plate is provided with a safety mechanism.

[0006] Preferably, the top end of the lower baffle is fitted with the bottom end of the spline, and the top end of the limit block is fitted with the bottom end of the lower baffle.

[0007] Preferably, the bottom end of the upper locking block contacts the top end of the lower locking block, and there is a certain friction force between the contact surfaces of the bottom end of the upper locking block and the top end of the lower locking block.

[0008] Preferably, a bolt is inserted into the interior of the support plate, and the bolt passes through the two lower supports and is threadedly connected to one of the lower supports.

[0009] Preferably, the safety mechanism includes a clamping block, a clamping slot and a limit block, and the clamping slot is opened inside the bottom plate of the ladle.

[0010] Preferably, the side of the locking block is engaged with the interior of the locking slot, and the side of the limiting block is plugged into the interior of the locking slot.

[0011] Preferably, an upper baffle is fixedly sleeved on the bottom of the operating rod, and the bottom end of the upper baffle is fitted with the top end of the spline.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model adopts the design of the upper locking block, the lower locking block and the supporting plate. After the operator fixes the supporting plate, the air brick body has reached its position. In order to strengthen the fixation of the air brick body and prevent air leakage, the lower locking block is rotated to increase the pressure between the lower locking block and the upper locking block until the operator can no longer rotate the lower locking block. The lower locking block and the upper locking block are in a self-locking state, thereby achieving the fixation of the air brick body.

[0014] 2. The utility model adopts the design of the safety mechanism. The operator can fix the operating rod through the design of the card block and the card slot. Even if the fixing method of the upper locking block, the lower locking block and the support plate fails, the card block and the card slot can be used to fix the operating rod to prevent the air permeable brick from loosening. In addition, the card block is also designed to prevent it from falling off with a limit block. Multi-layer safety protection avoids production accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the ladle bottom plate of the present utility model;

[0018] Figure 4 This is a schematic diagram of the component combination position structure of the utility model.

[0019] In the figure: 1. Ladle bottom plate; 2. Air brick body; 3. Operating lever; 4. Spline; 5. Lower baffle; 6. Limit block; 7. Upper locking block; 8. Lower locking block; 9. Lower support; 10. Support plate; 11. Bolt; 12. Upper baffle; 13. Block; 14. Slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 4 As shown, the utility model provides a fixing mechanism for a ladle air brick, including a ladle bottom plate 1, which is the bottom part of a casting ladle used for steelmaking, a breathable brick body 2 is inserted into the interior of the ladle bottom plate 1, the bottom end of the breathable brick body 2 is fixedly connected to an operating rod 3, the top of the operating rod 3 is fixedly sleeved with a spline 4, the top of the operating rod 3 is fixedly sleeved with a lower baffle 5, the bottom of the operating rod 3 is fixedly sleeved with an upper baffle 12, the bottom end of the upper baffle 12 is fit with the top of the spline 4, the outer side of the operating rod 3 is slidingly sleeved with a limit block 6, the outer side of the operating rod 3 is slidingly sleeved with an upper locking block 7 and a lower locking block 8, the bottom end of the ladle bottom plate 1 is fixedly connected to two lower supports 9, the outer side of the operating rod 3 is sleeved with a supporting plate 10, and a safety mechanism is provided at the bottom end of the ladle bottom plate 1, the safety mechanism includes a card block 13, a card slot 14 and a limit block 6, the upper baffle 12 and the lower baffle 5 are used to limit the up and down movement range of the card block 13.

[0022] The top end of the lower baffle 5 is fitted with the bottom end of the spline 4 , and the top end of the limit block 6 is fitted with the bottom end of the lower baffle 5 .

[0023] The bottom end of the upper locking block 7 contacts the top end of the lower locking block 8. There is a certain friction between the contact surface between the bottom end of the upper locking block 7 and the top end of the lower locking block 8. When the lower locking block 8 and the upper locking block 7 start to rotate, they can stop at any position to achieve a self-locking state.

[0024] A bolt 11 is inserted into the interior of the support plate 10 . The bolt 11 passes through the two lower supports 9 and is threadedly connected to one of the lower supports 9 . The bolt 11 is used to fix the support plate 10 .

[0025] The card slot 14 is provided inside the bottom plate 1 of the ladle; the card block 13 is slidably sleeved on the outside of the spline 4, the movable range of the card block 13 is small, the side of the card block 13 is engaged with the inside of the card slot 14, and the side of the limit block 6 is plugged into the inside of the card slot 14. The card slot 14 is structured as follows Figure 3 After the block 13 enters the slot 14 , it can rotate a certain angle. The position where several protrusions on the edge of the limit block 6 are inserted is the channel at the entrance of the slot 14 , which is used to prevent the block 13 from rotating in the slot 14 .

[0026] The working principle and process of the present invention are as follows: when the operator installs and fixes the air brick body 2, the operator inserts the air brick body 2 from the bottom end of the ladle bottom plate 1 until the clamping block 13 enters the inside of the clamping groove 14. Based on the top view, the operator rotates the operating lever 3 clockwise, and the operating lever 3 drives the clamping block 13 to rotate a certain angle to a position where it cannot rotate.

[0027] The operator inserts the limit block 6 into the interior of the card slot 14 to limit the movement of the card block 13 to prevent the card block 13 from falling off the card slot 14. The operator then moves the upper locking block 7 and the lower locking block 8 in the same direction. Figure 4 The style is assembled on the outside of the operating rod 3, and the operator installs the support plate 10 to Figure 1 position and fix the support plate 10 by bolts 11.

[0028] At this time, the operator rotates the lower locking block 8 clockwise, and the lower locking block 8 begins to rotate relative to the upper locking block 7. Since the contact surfaces of the lower locking block 8 and the upper locking block 7 are multiple inclined surfaces, the pressure between the lower locking block 8 and the upper locking block 7 increases until the operator can no longer rotate the lower locking block 8 smoothly (based on physical knowledge, when the force along the slope direction applied to an object on an inclined surface is less than the friction between the object and the slope, the object will not slide along the slope when not affected by other external forces), and the lower locking block 8 and the upper locking block 7 are in a self-locking state, thereby achieving the fixation of the air permeable brick body 2.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ladle air brick fixing mechanism, characterized by: The invention comprises a ladle bottom plate (1), wherein an air-permeable brick body (2) is inserted into the interior of the ladle bottom plate (1), an operating rod (3) is fixedly connected to the bottom end of the air-permeable brick body (2), a spline (4) is fixedly sleeved on the top of the operating rod (3), a lower baffle (5) is fixedly sleeved on the top of the operating rod (3), a limit block (6) is slidably sleeved on the outside of the operating rod (3), an upper locking block (7) and a lower locking block (8) are slidably sleeved on the outside of the operating rod (3), two lower supports (9) are fixedly connected to the bottom end of the ladle bottom plate (1), a supporting plate (10) is sleeved on the outside of the operating rod (3), and a safety mechanism is provided at the bottom end of the ladle bottom plate (1).

2. The ladle air brick fixing mechanism according to claim 1, characterized in that: The top end of the lower baffle (5) is fitted with the bottom end of the spline (4), and the top end of the limit block (6) is fitted with the bottom end of the lower baffle (5).

3. The ladle air brick fixing mechanism according to claim 1, characterized in that: The bottom end of the upper locking block (7) contacts the top end of the lower locking block (8), and there is a certain friction force between the contact surfaces of the bottom end of the upper locking block (7) and the top end of the lower locking block (8).

4. The ladle air brick fixing mechanism according to claim 1, characterized in that: The interior of the support plate (10) is connected with a bolt (11), which passes through the two lower supports (9) and is threadedly connected to one of the lower supports (9).

5. The ladle air brick fixing mechanism according to claim 1, characterized in that: The safety mechanism comprises a clamping block (13), a clamping slot (14) and a limiting block (6); the clamping slot (14) is provided inside the ladle bottom plate (1).

6. The ladle air brick fixing mechanism according to claim 5, characterized in that: The side of the clamping block (13) is clamped with the inside of the clamping slot (14), and the side of the limiting block (6) is plugged with the inside of the clamping slot (14).

7. The ladle air brick fixing mechanism according to claim 1, characterized in that: The bottom of the operating rod (3) is fixedly sleeved with an upper baffle (12), and the bottom end of the upper baffle (12) is in contact with the top end of the spline (4).

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