A quick-change structure for permeable bricks used in bottom-blown argon gas in steel ladles

Abstract

This utility model relates to the technical field of permeable bricks, and particularly to a quick replacement structure for permeable bricks used in bottom-blown argon gas from a steel ladle. The structure includes a sleeve, an adjustment mechanism, and a regulating mechanism. The regulating mechanism includes a turntable located on the left side of the regulating mechanism; a bidirectional screw connected to the right side of the turntable; an internally threaded ring threaded to the surface of the bidirectional screw; a connecting frame connected to the top of the internally threaded ring; and an arc-shaped plate connected to one side of the connecting frame. The rotation of the turntable drives the bidirectional screw to rotate, which in turn causes the internally threaded ring to move in opposite directions. This movement of the internally threaded ring causes the connecting frame to move in opposite directions, and the arc-shaped plate moves to its side to fit against the inner hole of the permeable brick. This design is applicable to permeable bricks with different hole diameters and allows for their fixation. This utility model improves the practicality of the replacement structure, enhances the cost-effectiveness of the permeable brick replacement structure, expands the range of permeable bricks with different hole diameters that the replacement structure can be applied to, and solves the problems in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of permeable bricks, and in particular to a quick replacement structure for permeable bricks used for bottom blowing argon gas in steel ladles. Background Technology

[0002] Permeable bricks are a new product with a long lifespan, energy saving, and reduced consumption. They feature a reasonable structural design, excellent thermal stability, erosion resistance, corrosion resistance, and impermeability, high blowing efficiency, safe and reliable operation, and long service life. The rapid hot replacement method for permeable bricks allows damaged bottom-blown permeable bricks to be replaced quickly while still hot. Protective jacket bricks can be replaced multiple times without damage, thus enabling reblowing of the converter throughout its entire service life.

[0003] The prior art can be referenced from Chinese authorized utility model patent CN206824658U, which specifically describes a quick replacement tool for a ladle water inlet and a permeable brick. The tool includes a handle, a gripping block, a connecting rod, a clamping nut, and a brick ejector. The connecting rod has threads at both ends, and the clamping nut and brick ejector are fitted onto the connecting rod. One end of the connecting rod is threaded to the gripping handle, and the other end is threaded to a drive device. The gripping block is detachably installed inside the gripping handle. This prior art utilizes a third mounting hole and a notch on the brick ejector, which is fitted onto the connecting rod through the third mounting hole. A clamping nut is fitted between the brick ejector and the gripping handle. The clamping nut, in conjunction with the threads, secures the ladle water inlet, permeable brick, and gripping block into a single unit, facilitating disassembly.

[0004] The aforementioned prior art has the following shortcomings in actual operation: Although the prior art achieves the goal of improving the speed of replacement of breathable bricks in actual use, the replacement tool can only be used for the disassembly and installation of a single model of breathable bricks. The cost-effectiveness of the replacement tool is low, and there is a problem that the range of breathable brick models that the replacement tool can be used for is small. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change structure for permeable bricks used for bottom-blowing argon gas in steel ladles, in order to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] Optionally, a quick-change structure for permeable bricks used for bottom-blown argon gas in a steel ladle includes a sleeve, an adjustment mechanism, and a regulating mechanism, wherein the regulating mechanism includes:

[0008] The turntable is located on the left side of the adjustment mechanism;

[0009] A bidirectional screw is connected to the right side of the turntable;

[0010] An internally threaded ring is threaded to the surface of the bidirectional screw.

[0011] The connecting bracket is connected to the top of the internal threaded ring;

[0012] An arc-shaped plate is connected to one side of the connecting frame.

[0013] Optionally, the adjustment mechanism further includes a rotating port and a movable cavity. The rotating port is located on the left front side of the adjustment mechanism. The inner wall of the rotating port is rotatably connected to the side of the turntable. A movable cavity is located on the right side of the rotating port. The right side of the inner wall of the movable cavity is rotatably connected to one end of the bidirectional screw. The inner wall of the movable cavity is slidably connected to the surface of the internal threaded ring. A moving groove is located at the top of the movable cavity. The inner wall of the moving groove is slidably connected to the side of the connecting frame.

[0014] Optionally, the top of the sleeve is connected to an installation mechanism that limits the upper part of the breathable brick. The installation mechanism includes a gripping handle and a gripping block. The bottom of the gripping handle is connected to the top of the sleeve. An installation port is opened on the right side of the gripping handle. A limiting groove is opened on the front side of the gripping handle. The side of the gripping block is slidably connected to the inner wall of the installation port.

[0015] Optionally, the installation mechanism further includes a rotating groove and a rotating pipe, wherein the rotating groove is formed on the front side of the gripping block, and the side of the rotating pipe is rotatably connected to the inner wall of the rotating groove.

[0016] Optionally, the mounting mechanism further includes a sliding groove and a slider. The sliding groove is formed on both sides of the inner wall of the rotating tube. The side of the slider is slidably connected to the inner wall of the sliding groove. A limiting tube is connected to one side of the slider. The front or rear side of the limiting tube is an inclined surface. A limiting spring is connected to the inner wall of the limiting tube. One side of the limiting spring is connected to one side of the inner wall of the rotating tube.

[0017] Optionally, the adjustment mechanism includes a base plate and a limiting plate. The base plate is disposed below the sleeve. The rotating opening is opened on the left side of the base plate. A rotating groove is opened at the center of the top of the base plate. A rotating plate is rotatably connected to the inner wall of the rotating groove. An adjusting screw is connected to the top of the rotating plate. The side of the adjusting screw is threadedly connected to the inner wall of the sleeve. The bottom of the limiting plate is connected to the left and right sides of the top of the base plate, respectively.

[0018] Optionally, a fixing mechanism for fixing the position of the turntable is provided on the left side of the base plate. The fixing mechanism includes a fixing hole and a telescopic groove. The fixing hole is evenly opened on the side of the turntable. The telescopic groove is opened on the left side of the base plate. A rotating block is rotatably connected to one side of the inner wall of the telescopic groove. A telescopic tube is connected to the left side of the rotating block. The left side of the telescopic tube is slidably connected to the inner wall of the fixing hole.

[0019] Optionally, the fixing mechanism further includes a clamping plate and a retaining spring. The clamping plate is connected to the surface of the telescopic tube, the lower surface of the clamping plate is engaged with the upper surface of the turntable, a control rod is connected to the front side of the clamping plate, the retaining spring is located outside the telescopic tube, the left side of the retaining spring is connected to the right side of the clamping plate, and the right side of the retaining spring is connected to the left side of the rotating block.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] The rotation of the turntable drives the bidirectional screw to rotate, which in turn causes the internal threaded ring to move in opposite directions. This movement of the internal threaded ring, in turn, causes the connecting frame to move in opposite directions. The connecting frame then moves the arc-shaped plate to its side, where it fits against the inner hole of the breathable brick. This design is applicable to breathable bricks of different hole diameters, allowing for their secure fixing. This invention improves the practicality of the replacement structure, enhances the cost-effectiveness of the breathable brick replacement structure, expands the range of breathable bricks with different hole diameters that the replacement structure can be applied to, and solves the problems in the prior art. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the external structure of this application from a top right view;

[0024] Figure 2 This is a schematic diagram of the external structure of this application from a left-side, upward-looking perspective;

[0025] Figure 3 This is a schematic cross-sectional view of the installation mechanism from the left-hand top view of this application;

[0026] Figure 4 This is a schematic cross-sectional view of the right-side top-view adjustment mechanism of this application;

[0027] Figure 5 This is a schematic cross-sectional view of the fixed mechanism from the left, rear, and top views of this application.

[0028] Figure 6 This is an enlarged schematic diagram of Part A of this application.

[0029] Reference numerals: 1. Sleeve;

[0030] 2. Installation mechanism; 201. Grip handle; 202. Installation port; 203. Limiting groove; 204. Grip block; 205. Rotary groove; 206. Rotary tube; 207. Slide groove; 208. Sliding block; 209. Limiting tube; 210. Limiting spring;

[0031] 3. Adjustment mechanism; 301. Base plate; 302. Rotating groove; 303. Rotating plate; 304. Adjusting screw; 305. Limiting plate;

[0032] 4. Adjustment mechanism; 401. Rotary opening; 402. Movable cavity; 403. Moving groove; 404. Turntable; 405. Bidirectional screw; 406. Internal threaded ring; 407. Connecting frame; 408. Arc plate;

[0033] 5. Fixing mechanism; 501. Fixing hole; 502. Telescopic groove; 503. Rotating block; 504. Telescopic tube; 505. Clamping plate; 506. Control rod; 507. Fixing spring. Detailed Implementation

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] While current technologies have achieved the goal of improving the speed of permeable brick replacement in practical use, the replacement tools are only applicable to the disassembly and installation of a single model of permeable brick. The cost-effectiveness of the replacement tools is low, and there is a problem that the range of permeable brick models that the replacement tools can be applied to is small.

[0037] like Figure 1-6As shown, this utility model embodiment provides a quick replacement structure for a permeable brick for bottom blowing argon in a steel ladle, including a sleeve 1, an adjustment mechanism 3, and an adjustment mechanism 4.

[0038] The turntable 404 is located on the left side of the adjustment mechanism 3, and a bidirectional screw 405 is connected to the right side of the turntable 404. An internal threaded ring 406 is threaded onto the surface of the bidirectional screw 405, and a connecting frame 407 is connected to the top of the internal threaded ring 406. An arc-shaped plate 408 is connected to one side of the connecting frame 407.

[0039] Specifically, the adjustment mechanism 4 also includes a turnout 401 and a movable cavity 402.

[0040] The rotating port 401 is located on the left front side of the adjusting mechanism 3. The inner wall of the rotating port 401 is rotatably connected to the side of the turntable 404. A movable cavity 402 is provided on the right side of the rotating port 401. The right side of the inner wall of the movable cavity 402 is rotatably connected to one end of the bidirectional screw 405. The inner wall of the movable cavity 402 is slidably connected to the surface of the internal threaded ring 406. A moving groove 403 is provided on the top of the movable cavity 402. The inner wall of the moving groove 403 is slidably connected to the side of the connecting frame 407.

[0041] In use, rotating the turntable 404, which is rotatably connected to the rotating port 401, drives the bidirectional screw 405, which is rotatably connected to one side of the movable cavity 402, to rotate. The rotation of the bidirectional screw 405 drives the internal threaded ring 406 to move in opposite directions. The movement of the internal threaded ring 406 drives the connecting frame 407 to move within the moving groove 403. The movement of the connecting frame 407 drives the arc plate 408 to move to its side and fit against the inner wall of the permeable brick hole.

[0042] Furthermore, in order to limit the top of the breathable brick, the replacement structure also includes an installation mechanism 2.

[0043] Specifically, as shown in Figures 1-3, the installation mechanism 2 includes a gripping handle 201 and a gripping block 204.

[0044] The bottom of the gripping handle 201 is connected to the top of the sleeve 1. An installation port 202 is provided on the right side of the gripping handle 201. A limit groove 203 is provided on the front side of the gripping handle 201. The side of the gripping block 204 is slidably connected to the inner wall of the installation port 202.

[0045] Specifically, the installation mechanism 2 also includes a rotating groove 205 and a rotating pipe 206.

[0046] The rotating groove 205 is located on the front side of the grab block 204, and the side of the rotating pipe 206 is rotatably connected to the inner wall of the rotating groove 205.

[0047] Specifically, the mounting mechanism 2 also includes a slide 207 and a slider 208.

[0048] Among them, the slide groove 207 is opened on both sides of the inner wall of the rotating tube 206, the side of the slider 208 is slidably connected to the inner wall of the slide groove 207, one side of the slider 208 is connected to the limiting tube 209, the front or rear side of the limiting tube 209 is an inclined surface, the inner wall of the limiting tube 209 is connected to the limiting spring 210, and one side of the limiting spring 210 is connected to one side of the inner wall of the rotating tube 206.

[0049] In a preferred embodiment, the front or rear side of the limiting tube 209 is an inclined surface.

[0050] In use, squeezing and rotating the limiting tube 209 causes the rotating tube 206, which is rotatably connected to the rotating groove 205, to rotate, so that the inclined surface of the limiting tube 209 fits against the inner wall of the mounting port 202 opened in the gripping handle 201. Move the gripping block 204 until the limiting tube 209 moves into the limiting groove 203. Under the action of the elastic force of the limiting spring 210, the limiting tube 209 moves its outer surface to fit against the inner wall of the limiting groove 203. At the same time, it drives the slider 208 to slide in the sliding groove 207, so that the permeable brick hole, which is driven upward by the adjustment mechanism 3, passes through the bottom of the gripping handle 201 until the upper surface of the permeable brick fits against the bottom of the gripping block 204, thus fixing the upper surface of the permeable brick.

[0051] Furthermore, in order to adjust the length of the replacement structure to accommodate permeable bricks of different lengths, the replacement structure also includes an adjustment mechanism 3.

[0052] Specifically, as shown in Figures 1-4, the adjustment mechanism 3 includes a base plate 301 and a limiting plate 305.

[0053] The base plate 301 is located below the sleeve 1. A rotating opening 401 is opened on the left side of the base plate 301. A rotating groove 302 is opened at the center of the top of the base plate 301. A rotating plate 303 is rotatably connected to the inner wall of the rotating groove 302. An adjusting screw 304 is connected to the top of the rotating plate 303. The side of the adjusting screw 304 is threaded to the inner wall of the sleeve 1. The bottom of the limiting plate 305 is connected to the left and right sides of the top of the base plate 301 respectively.

[0054] In use, place the breathable brick on the upper surface of the base plate 301, with the side of the breathable brick in contact with one side of the limiting plate 305. Insert the adjusting screw 304 into the threaded opening at the bottom of the sleeve 1. Rotate the rotating plate 303, which is rotatably connected to the rotating groove 302 of the base plate 301, to drive the adjusting screw 304 to rotate. The adjusting screw 304 moves upward, causing the base plate 301 to move upward. The upward movement of the base plate 301 causes the breathable brick to move upward until the upper surface of the breathable brick is in contact with the bottom of the grabbing block 204.

[0055] Furthermore, in order to fix the position of turntable 404, the replacement structure also includes a fixing mechanism 5.

[0056] Specifically, as shown in Figures 4-6, the fixing mechanism 5 includes a fixing hole 501 and a telescopic groove 502.

[0057] Among them, the fixing holes 501 are evenly opened on the side of the turntable 404, the telescopic groove 502 is opened on the left side of the base plate 301, the inner wall of the telescopic groove 502 is rotatably connected to the rotating block 503, the left side of the rotating block 503 is connected to the telescopic tube 504, and the left side of the telescopic tube 504 is slidably connected to the inner wall of the fixing hole 501.

[0058] Specifically, the fixing mechanism 5 also includes a locking plate 505 and a retaining spring 507.

[0059] The clamping plate 505 is connected to the surface of the telescopic tube 504, the lower surface of the clamping plate 505 is engaged with the upper surface of the turntable 404, a control rod 506 is connected to the front side of the clamping plate 505, a retaining spring 507 is located outside the telescopic tube 504, the left side of the retaining spring 507 is connected to the right side of the clamping plate 505, and the right side of the retaining spring 507 is connected to the left side of the rotating block 503.

[0060] In use, after the adjustment mechanism 4 is adjusted, the control lever 506 is released. Under the action of the elastic force of the retaining spring 507 connected to the rotating block 503, the telescopic tube 504 of the telescopic groove 502 extends until it is inserted into the retaining hole 501. At the same time, the left side of the clamping plate 505 is brought into contact with the right side of the turntable 404. Rotating the control lever 506 causes the clamping plate 505 to engage with the surface of the turntable 404, achieving the purpose of unexpected rotation of the turntable 404 and ensuring the stability of the turntable 404.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for rapidly replacing a gas-permeable brick for bottom argon blowing of a ladle, characterized in that ,include: Sleeve (1), adjustment mechanism (3) and adjustment mechanism (4), wherein the adjustment mechanism (4) includes: Turntable (404) is located on the left side of adjustment mechanism (3); A bidirectional screw (405) is connected to the right side of the turntable (404); An internal threaded ring (406) is threaded to the surface of the bidirectional screw (405); The connecting bracket (407) is connected to the top of the internal threaded ring (406); An arc-shaped plate (408) is connected to one side of the connecting frame (407); The adjustment mechanism (4) also includes a turnout (401) and a movable cavity (402).

2. The replacement structure of claim 1, wherein: The rotating port (401) is located on the left front side of the adjustment mechanism (3). The inner wall of the rotating port (401) is rotatably connected to the side of the turntable (404). A movable cavity (402) is provided on the right side of the rotating port (401). The right side of the inner wall of the movable cavity (402) is rotatably connected to one end of the bidirectional screw (405). The inner wall of the movable cavity (402) is slidably connected to the surface of the internal threaded ring (406). A moving groove (403) is provided at the top of the movable cavity (402). The inner wall of the moving groove (403) is slidably connected to the side of the connecting frame (407).

3. The replacement structure of claim 1, wherein: The top of the sleeve (1) is connected to an installation mechanism (2) that limits the upper part of the breathable brick. The installation mechanism (2) includes a gripping handle (201) and a gripping block (204). The bottom of the gripping handle (201) is connected to the top of the sleeve (1). An installation port (202) is opened on the right side of the gripping handle (201). A limiting groove (203) is opened on the front side of the gripping handle (201). The side of the gripping block (204) is slidably connected to the inner wall of the installation port (202).

4. The replacement structure of claim 3, wherein: The installation mechanism (2) also includes a rotating groove (205) and a rotating pipe (206). The rotating groove (205) is opened on the front side of the grab block (204), and the side of the rotating pipe (206) is rotatably connected to the inner wall of the rotating groove (205).

5. The replacement structure of claim 4, wherein: The installation mechanism (2) further includes a slide groove (207) and a slider (208). The slide groove (207) is formed on both sides of the inner wall of the rotating tube (206). The side of the slider (208) is slidably connected to the inner wall of the slide groove (207). A limiting tube (209) is connected to one side of the slider (208). The front or rear side of the limiting tube (209) is an inclined surface. A limiting spring (210) is connected to the inner wall of the limiting tube (209). One side of the limiting spring (210) is connected to one side of the inner wall of the rotating tube (206).

6. The replacement structure of claim 3, wherein: The adjustment mechanism (3) includes a base plate (301) and a limiting plate (305). The base plate (301) is located below the sleeve (1). The pivot (401) is opened on the left side of the base plate (301). A rotating groove (302) is opened at the center of the top of the base plate (301). A rotating plate (303) is rotatably connected to the inner wall of the rotating groove (302). An adjusting screw (304) is connected to the top of the rotating plate (303). The side of the adjusting screw (304) is threaded to the inner wall of the sleeve (1). The bottom of the limiting plate (305) is connected to the left and right sides of the top of the base plate (301).

7. The replacement structure of claim 6, wherein: A fixing mechanism (5) for fixing the position of the turntable (404) is provided on the left side of the base plate (301). The fixing mechanism (5) includes a fixing hole (501) and a telescopic groove (502). The fixing hole (501) is evenly opened on the side of the turntable (404). The telescopic groove (502) is opened on the left side of the base plate (301). A rotating block (503) is rotatably connected to one side of the inner wall of the telescopic groove (502). A telescopic tube (504) is connected to the left side of the rotating block (503). The left side of the telescopic tube (504) is slidably connected to the inner wall of the fixing hole (501).

8. The replacement structure of claim 7, wherein: The fixing mechanism (5) further includes a clamping plate (505) and a retaining spring (507). The clamping plate (505) is connected to the surface of the telescopic tube (504). The lower surface of the clamping plate (505) is engaged with the upper surface of the turntable (404). A control rod (506) is connected to the front side of the clamping plate (505). The retaining spring (507) is located outside the telescopic tube (504). The left side of the retaining spring (507) is connected to the right side of the clamping plate (505). The right side of the retaining spring (507) is connected to the left side of the rotating block (503).

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