Combined integral stopper rod

By designing a modular integral stopper rod splicing and extension mechanism, the problem of replacing the stopper rod when there are local defects or damage was solved, and efficient use of materials and stable control of molten steel flow were achieved.

CN224143483UActive Publication Date: 2026-04-21SHANDONG PROVINCE ZICHUAN SPECIAL REFRACTORY MATERIAL FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG PROVINCE ZICHUAN SPECIAL REFRACTORY MATERIAL FACTORY
Filing Date
2025-04-01
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing stopper rod is a one-piece structure, which makes it inconvenient to replace parts when there are local defects or damage, resulting in material waste and scrap loss.

Method used

A modular, integral stopper rod was designed, employing a splicing mechanism and an extension mechanism. The stopper rod can be detachably spliced ​​and extended through components such as sliding blocks, locking blocks, locking rods, and bevel gears, facilitating partial replacement and extension.

Benefits of technology

It enables convenient replacement of stoppers, reduces scrap loss, optimizes the molten steel flow field, and reduces transportation and storage space requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a combined type integral stopper rod, and relates to the technical field of stopper rods. The rod comprises a rod body and is characterized in that a splicing mechanism is arranged at the top of the rod body, an extending mechanism is arranged on the inner wall of the rod body, the splicing mechanism comprises a sliding block, a cavity is formed in the rod body, and a fixing ring is fixedly connected to the top of the rod body. A sliding block is pulled to slide on the surface of a rod body, when the sliding block slides downwards, a first spring is driven to press downwards at the same time, when the sliding block moves downwards, the exposed space is larger and larger, a triangular plate slides along the angle, the triangular plate pops up due to springback of a second spring, and at the moment, clamping rods located on the outer wall of the triangular plate move at the same time; when the clamping block moves to a proper position, the sliding block is loosened, the spring I rebounds the sliding block, and the triangular plate contracts inwards, so that the clamping rod is clamped into the clamping hole.
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Description

Technical Field

[0001] This utility model belongs to the field of stopper rod technology, and in particular relates to a combined integral stopper rod. Background Technology

[0002] Stopper rods are mainly used in the continuous casting process in the metallurgical industry. They are usually installed at the bottom outlet of the tundish. By adjusting the depth of the stopper rod inserted into the nozzle, the flow rate of molten steel from the tundish into the crystallizer can be controlled, thereby maintaining the stability of the molten steel level in the crystallizer.

[0003] Stopper rods are generally used to regulate and control the flow of molten steel. Most existing stopper rods are one-piece stopper rods. If a local defect or damage occurs in the stopper rod during use, it may be inconvenient to replace it locally, resulting in material waste and scrap loss. Therefore, we provide modular one-piece stopper rods. Utility Model Content

[0004] The purpose of this invention is to provide a modular integral stopper rod. Through the splicing mechanism, it solves the problem that existing stopper rods are mostly integral rods, which may be inconvenient to replace locally if defects or damage occur in the stopper rod during use, thus leading to material waste and scrap loss.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a modular integral stopper rod, comprising a rod body, a splicing mechanism at the top of the rod body, and an extension mechanism on the inner wall of the rod body.

[0007] The splicing mechanism includes a sliding block, a cavity inside the rod, a fixing ring fixedly connected to the top of the rod, a spring fixedly connected to the top of the rod, a locking block slidably connected to the inner wall of the fixing ring, a locking hole having several locking holes inside, a second spring fixedly connected to the inner wall of the fixing ring, a triangular plate fixedly connected to the outer wall of the second spring, the outer wall of the triangular plate slidably connected to the inner wall of the sliding block, a locking rod fixedly connected to the outer wall of the triangular plate, the outer surface of the locking rod slidably connected to the inner wall of the fixing ring, the outer wall of the locking rod penetrating through the inner wall of the extension rod and extending into the locking block, and an upper stopper rod fixedly connected to the top of the locking block.

[0008] Furthermore, the inner wall of the sliding block is slidably connected to the outer surface of the rod, the inner wall of the sliding block is slidably connected to the outer surface of the fixed ring, and the number of springs is several.

[0009] Furthermore, the extension mechanism includes a threaded block, the outer surface of which is slidably connected to the inner wall of the rod, and a slider is fixedly connected to the outer surface of the threaded block, the number of which is several.

[0010] Furthermore, a sliding groove is provided inside the rod body, and an extension rod is fixedly connected to the bottom of the threaded block, with the outer surface of the extension rod slidably connected to the inner wall of the rod body.

[0011] Furthermore, the outer surface of the slider is slidably connected to the inner wall of the rod, the inner wall of the threaded block is threaded with a threaded rod, and the inner wall of the rod is rotatably connected with a fixed rod.

[0012] Furthermore, a bevel gear one is fixedly connected to the bottom of the fixed rod, the bottom of the bevel gear one is fixedly connected to the top of the threaded rod, a bevel gear two is threadedly connected to the outer surface of the bevel gear one, and a rotating rod is fixedly connected to the outer wall of the bevel gear two.

[0013] Furthermore, a fixing frame is fixedly connected to the inner wall of the rod, the inner wall of the fixing frame is rotatably connected to the outer surface of the rotating rod, and a handle is fixedly connected to the outer wall of the rotating rod.

[0014] Furthermore, a plug rod is slidably connected to the inner wall of the handle, and a number of insertion holes are opened inside the rod body. A limit ring is fixedly connected to the bottom of the rod body.

[0015] This utility model has the following beneficial effects:

[0016] This invention utilizes a splicing mechanism to slide a sliding block on the surface of a rod. As the sliding block slides down, it causes spring one to press downwards simultaneously. As the sliding block moves downwards, the exposed space increases, allowing the triangular plate to slide along the angle. Due to the rebound of spring two, the triangular plate is ejected. At this time, the locking rod located on the outer wall of the triangular plate moves simultaneously, inserting the locking block into the cavity. When the locking block moves to the appropriate position, the sliding block is released, and spring one rebounds the sliding block. The triangular plate then retracts inwards, locking the locking rod into the locking hole. The advantages are that when the stopper rod has local defects or damage, it is easy to replace, reducing waste. It is also convenient for transportation and storage, and does not occupy too much space.

[0017] This invention features an extension mechanism. Rotating the handle causes the rotating rod to rotate, and the second bevel gear at the end of the rotating rod also rotates simultaneously. When the second bevel gear rotates, the first bevel gear meshing with it also rotates. At this time, the fixing rod fixed to the inner wall of the first bevel gear rotates on the inner wall of the rod, and the threaded rod at the bottom of the first bevel gear also rotates. When the threaded rod rotates, the threaded block moves along the groove on the threaded rod, thereby extending the extension rod. The advantage is that it reduces secondary oxidation and optimizes the flow field of molten steel.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the sliding block structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the clamping rod structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the threaded rod structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the handle structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 11. Rod body; 1. Splicing mechanism; 101. Sliding block; 102. Cavity; 103. Spring 1; 104. Fixing ring; 105. Locking block; 106. Locking hole; 107. Triangular plate; 108. Spring 2; 109. Locking rod; 110. Upper stopper rod; 2. Extension mechanism; 201. Threaded block; 202. Slide groove; 203. Sliding block; 204. Extension rod; 205. Threaded rod; 206. Bevel gear 1; 207. Bevel gear 2; 208. Rotating rod; 209. Fixing frame; 210. Handle; 211. Insertion hole; 212. Insertion rod; 213. Limiting ring; 214. Fixing rod. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5As shown, this utility model is a modular integral stopper rod, including a rod body 11. A splicing mechanism 1 is provided at the top of the rod body 11, and an extension mechanism 2 is provided on the inner wall of the rod body 11. The splicing mechanism 1 includes a sliding block 101, which allows the stopper rod to be spliced ​​and assembled by pulling the sliding block 101. A cavity 102 is provided inside the rod body 11. A fixing ring 104 is fixedly connected to the top of the rod body 11, and a spring 103 is fixedly connected to the top of the rod body 11, allowing the sliding block 101 to rebound. A locking block 105 is slidably connected to the inner wall of the fixing ring 104, and a locking hole 106 is provided inside the locking block 105 for engaging the stopper rod. The number of locking holes 106 is several. A second spring 108 is fixedly connected to the inner wall of the fixing ring 104, allowing the stopper rod to rebound. A set of triangular plates 107 and springs 108 are fixedly connected to the outer wall of the set of triangular plates 107. The outer wall of the set of triangular plates 107 is slidably connected to the inner wall of the sliding block 101. The movement of the set of triangular plates 107 allows the locking rod 109 to be inserted into the locking hole 106. The locking rod 109 is fixedly connected to the outer wall of the set of triangular plates 107. The outer surface of the locking rod 109 is slidably connected to the inner wall of the fixing ring 104. The locking rod 109 is inserted into the locking hole 106 to mate with the stopper rod. The outer wall of the locking rod 109 penetrates the inner wall of the extension rod 204 and extends into the locking block 105. An upper stopper rod 110 is fixedly connected to the top of the locking block 105. The inner wall of the sliding block 101 is slidably connected to the outer surface of the rod body 11. The inner wall of the sliding block 101 is slidably connected to the outer surface of the fixing ring 104. There are several springs 108.

[0029] The extension mechanism 2 includes a threaded block 201. The outer surface of the threaded block 201 is slidably connected to the inner wall of the rod body 11. A slider 203 is fixedly connected to the outer surface of the threaded block 201. The slider 203 slides inside the groove 202 to limit the movement of the threaded block 201. There are several sliders 203. The groove 202 is opened inside the rod body 11. An extension rod 204 is fixedly connected to the bottom of the threaded block 201 to extend the length of the stopper rod. The outer surface of the extension rod 204 is slidably connected to the inner wall of the rod body 11. The outer surface of the slider 203 is slidably connected to the inner wall of the rod body 11. A threaded rod 205 is threadedly connected to the inner wall of the threaded block 201. The threaded rod 205 rotates to drive the threaded block 201 to move.

[0030] A fixed rod 214 is rotatably connected to the inner wall of the rod 11. A bevel gear 206 is fixedly connected to the bottom of the fixed rod 214. The bottom of the bevel gear 206 is fixedly connected to the top of the threaded rod 205. The bevel gear 206 drives the threaded rod 205 to rotate simultaneously. A bevel gear 207 is threadedly connected to the outer surface of the bevel gear 206. A rotating rod 208 is fixedly connected to the outer wall of the bevel gear 207. A fixed frame 209 is fixedly connected to the inner wall of the rod 11. The rotating rod 208 drives the bevel gear 207 to rotate. The inner wall of the fixed frame 209 is rotatably connected to the outer surface of the rotating rod 208. A handle 210 is fixedly connected to the outer wall of the rotating rod 208. An insert rod 212 is slidably connected to the inner wall of the handle 210. The handle 210 drives the rotating rod 208 to rotate. An insert hole 211 is opened inside the rod 11. There are several insert holes 211. A limit ring 213 is fixedly connected to the bottom of the rod 11.

[0031] One specific application of this embodiment is:

[0032] When the worker needs to assemble the stopper rod, the sliding block 101 is pulled and slids on the surface of the rod body 11. As the sliding block 101 slides down, it drives the spring 103 to press down simultaneously. As the sliding block 101 moves downward, the exposed space becomes larger and larger, and the triangular plate 107 will slide along the angle. Due to the rebound of the spring 108, the triangular plate 107 will pop out. At this time, the locking rod 109 located on the outer wall of the triangular plate 107 will move simultaneously, and the locking block 105 will be inserted into the cavity 102. When the locking block 105 moves to the appropriate position, the sliding block 101 is released, and the spring 103 will rebound the sliding block 101. At this time, the triangular plate 107 will retract inward, thereby locking the locking rod 109 into the locking hole 106. The advantage of this is that when the stopper rod partially protrudes... When defects or damage occur, it is easy to replace them, reducing scrap loss. It is also easy to transport and store, and does not take up too much space. When the stopper rod needs to be extended, the handle 210 is turned to drive the rotating rod 208 to rotate. At this time, the bevel gear 207 at the end of the rotating rod 208 will also rotate with the rotating rod 208. After the bevel gear 207 rotates, the bevel gear 206 meshing with it will also rotate. At this time, the fixing rod 214 fixed on the inner wall of the bevel gear 206 will rotate on the inner wall of the rod body 11. At the same time, the threaded rod 205 at the bottom of the bevel gear 206 will also rotate. After the threaded rod 205 rotates, the threaded block 201 will move along the groove on the threaded rod 205, thereby extending the extension rod 204. Its advantage is to reduce secondary oxidation and optimize the steel flow field.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. Combined monobloc stopper comprising a stopper body (11), characterized in that: The top of the rod (11) is provided with a splicing mechanism (1), and the inner wall of the rod (11) is provided with an extension mechanism (2). The splicing mechanism (1) includes a sliding block (101), a cavity (102) is provided inside the rod (11), a fixing ring (104) is fixedly connected to the top of the rod (11), a spring (103) is fixedly connected to the top of the rod (11), a locking block (105) is slidably connected to the inner wall of the fixing ring (104), a locking hole (106) is provided inside the locking block (105), the number of locking holes (106) is several, and a spring (2) is fixedly connected to the inner wall of the fixing ring (104). 108), the outer wall of the second spring (108) is fixedly connected to a triangular plate (107), the outer wall of the triangular plate (107) is slidably connected to the inner wall of the sliding block (101), the outer wall of the triangular plate (107) is fixedly connected to a locking rod (109), the outer surface of the locking rod (109) is slidably connected to the inner wall of the fixing ring (104), the outer wall of the locking rod (109) penetrates the inner wall of the extension rod (204) and extends into the inside of the locking block (105), and the top of the locking block (105) is fixedly connected to an upper stopper rod (110).

2. The combined monoblock stopper according to claim 1, characterized in that, The inner wall of the sliding block (101) is slidably connected to the outer surface of the rod (11), and the inner wall of the sliding block (101) is slidably connected to the outer surface of the fixed ring (104). The number of the second spring (108) is several.

3. The combined monoblock stopper according to claim 2, characterized in that, The extension mechanism (2) includes a threaded block (201), the outer surface of which is slidably connected to the inner wall of the rod (11), and a slider (203) is fixedly connected to the outer surface of the threaded block (201), and the number of sliders (203) is several.

4. The combined monoblock stopper according to claim 3, characterized in that, The rod body (11) has a sliding groove (202) inside, and the bottom of the threaded block (201) is fixedly connected to an extension rod (204). The outer surface of the extension rod (204) is slidably connected to the inner wall of the rod body (11).

5. The combined monoblock stopper according to claim 4, characterized in that, The outer surface of the slider (203) is slidably connected to the inner wall of the rod (11), the inner wall of the threaded block (201) is threaded with a threaded rod (205), and the inner wall of the rod (11) is rotatably connected with a fixed rod (214).

6. The combined monoblock stopper according to claim 5, wherein, The bottom of the fixed rod (214) is fixedly connected to a bevel gear one (206), the bottom of the bevel gear one (206) is fixedly connected to the top of the threaded rod (205), the outer surface of the bevel gear one (206) is threadedly connected to a bevel gear two (207), and the outer wall of the bevel gear two (207) is fixedly connected to a rotating rod (208).

7. The combined monoblock stopper according to claim 6, characterized in that, The inner wall of the rod (11) is fixedly connected to a fixing frame (209), the inner wall of the fixing frame (209) is rotatably connected to the outer surface of the rotating rod (208), and the outer wall of the rotating rod (208) is fixedly connected to a handle (210).

8. The combined monoblock stopper according to claim 7, characterized in that, The handle (210) has a sliding connection to the inner wall of the insert rod (212), and the rod body (11) has an insert hole (211) inside. The number of insert holes (211) is several, and the bottom of the rod body (11) is fixedly connected to a limit ring (213).