A molten iron temperature measuring probe with a protective structure

Abstract

The utility model relates to hot metal temperature measurement technical field, concretely is a kind of hot metal temperature measurement probe with protective structure, including temperature measuring rod, the bottom of temperature measuring rod is provided with temperature measurement probe, the utility model discloses the synergistic effect of draw bar and linkage mechanism is realized the quick automatic deployment of heat-insulating cloth.Workers only need to pull the pull handle to drive the disc to move up, the sliding of linkage plate and guide block in arc-shaped guide groove converts linear motion into the rotary motion of pinion, further drives the disc to drive multiple groups of L-shaped rods to move out synchronously.This process uses mechanical linkage to realize the rapid deployment of protective barrier, effectively insulates splashing hot metal, significantly reduces the risk of scalding.At the same time, the reset function of spring one ensures the automatic recovery of structure after releasing the pull handle, avoids the complexity of manual operation, improves the continuity and safety of temperature measurement operation.The whole mechanism structure is stable, responds quickly, has higher practicality and reliability in high-temperature and high-risk environment.

Description

Technical Field

[0001] This utility model relates to the field of molten iron temperature measurement technology, specifically a molten iron temperature measurement probe with a protective structure. Background Technology

[0002] Specialized probes are essential for measuring the temperature of molten iron because the high-temperature environment is extremely harsh and requires highly accurate measurements. Conventional thermometers cannot withstand such high temperatures and are easily damaged. The probes, made of special high-temperature resistant materials, can be instantly inserted into the molten iron and directly contact the high-temperature melt to quickly obtain accurate temperature data. This process is crucial for steelmaking because real-time, accurate temperature readings are key to controlling the steelmaking process, determining the smelting endpoint, and ensuring steel quality. Only a specialized probe can achieve rapid, accurate, and safe online measurement, providing immediate feedback to on-site operations, ensuring smooth production, and ultimately guaranteeing that the steel meets performance standards.

[0003] In existing technologies, the protective measures of molten iron temperature measuring devices have significant and substantial deficiencies. Most devices lack integrated active protection structures or only employ simple fixed baffles, whose protection range and direction are very limited, failing to effectively cope with the multidirectional and unpredictable nature of splashing molten iron, resulting in prominent safety hazards. Designs with movable protective components often rely on manual point-by-point operation or complex independent drive mechanisms for deployment and retraction, leading to slow response, cumbersome operation, and difficulty in achieving rapid response in emergencies, severely impacting the efficiency and continuity of temperature measurement operations. Furthermore, existing protective structures typically cannot achieve synchronous automatic reset after activation, requiring manual intervention to restore the original state. This not only increases the labor intensity of workers but also makes the protective components susceptible to damage due to continuous exposure to high temperatures, resulting in insufficient reliability and durability.

[0004] In view of this, we propose a molten iron temperature measuring probe with a protective structure. Utility Model Content

[0005] The purpose of this utility model is to provide a molten iron temperature measuring probe with a protective structure, which solves the problems of limited protection range, slow response and inability to automatically reset existing molten iron temperature measuring probes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A molten iron temperature measuring probe with a protective structure includes a temperature measuring rod with a temperature measuring probe at its bottom and a handle at its top. It also includes a protective component to prevent molten iron from splashing and scalding workers when measuring the temperature of molten iron. The protective component includes a shaft located inside the temperature measuring rod and rotatably connected to it. A gear shaft is passed through and fixedly connected to the shaft. A turntable is fixedly connected to the bottom of the gear shaft, and an arc-shaped actuating groove is formed at the bottom of the turntable. A disc is slidably connected inside the temperature measuring rod, and a through hole is formed at the center of the disc. The gear shaft passes through the through hole. A linkage plate is rotatably connected to the bottom of the disc, and the linkage plate is penetrated by the gear shaft. A guide block is fixedly connected to the side of the linkage plate. An arc-shaped guide groove is formed on the inner wall of the temperature measuring rod, and the guide block is inserted into the arc-shaped guide groove.

[0007] Preferably, a pull rod is fixedly connected to the top surface of the disk, the pull rod passes through the temperature measuring rod, and the pull rod is slidably connected to the temperature measuring rod.

[0008] Preferably, a handle is fixedly connected to the top of the pull rod, and a spring is sleeved on the outside of the pull rod. One end of the spring is fixedly connected to the top surface of the disc, and the other end of the spring is fixedly connected to the inner wall of the temperature measuring rod.

[0009] Preferably, a fixing plate is fixedly connected inside the temperature measuring rod, and a limiting groove is formed on the surface of the fixing plate.

[0010] Preferably, an L-shaped rod is inserted into and slidably connected to the inner side of the limiting groove, and the top end of the L-shaped rod is inserted into the arc-shaped actuating groove.

[0011] Preferably, a second spring is sleeved on the outer side of the L-shaped rod, one end of the second spring is fixedly connected to the surface of the L-shaped rod, and the other end of the second spring is fixedly connected to the inner side of the limiting groove.

[0012] Preferably, the L-shaped rod passes through one end of the fixed plate and also passes through the temperature measuring rod. A pull ring is fixedly connected to the end of the L-shaped rod that passes through the temperature measuring rod, and a binding rope passes through and is fixedly connected to the inner side of the pull ring.

[0013] Preferably, the binding rope passes through and is fixedly connected to the heat insulation cloth, and the heat insulation cloth is fixedly connected to the surface of the temperature measuring rod.

[0014] Preferably, the number of L-shaped rods is six sets, and the six sets of L-shaped rods are arranged in a circumferential array with the center line of the fixed disk as the axis.

[0015] Preferably, there are two sets of guide blocks, and the two sets of guide blocks are respectively fixedly connected to the side of the linkage plate.

[0016] By employing the above technical solution, this utility model provides a molten iron temperature measuring probe with a protective structure. It possesses at least the following beneficial effects:

[0017] 1. This utility model achieves rapid and automatic deployment of the heat insulation cloth through the coordinated action of the pull rod and the linkage mechanism. Workers only need to pull the handle to drive the disc upwards. The sliding of the linkage plate and guide block within the arc-shaped guide groove converts linear motion into rotational motion of the gear shaft, which in turn drives the turntable to move multiple sets of L-shaped rods outwards synchronously. This process utilizes mechanical linkage to achieve rapid deployment of the protective barrier, effectively isolating splashed molten iron and significantly reducing the risk of burns. Simultaneously, the spring's reset function ensures automatic retraction of the structure after the handle is released, avoiding cumbersome manual operation and improving the continuity and safety of temperature measurement operations. The entire mechanism is stable and responsive, exhibiting high practicality and reliability in high-temperature and high-risk environments.

[0018] 2. This utility model achieves uniform expansion and full coverage of the protective surface through the cooperation of six sets of L-shaped rods in a circumferential array with a turntable. The arc-shaped actuating groove at the bottom of the turntable synchronously pushes all the L-shaped rods outward along the limiting groove during rotation. The heat-insulating cloth, pulled by the binding rope, forms a three-dimensional barrier surrounding the temperature measuring rod, effectively blocking molten iron splashes from different directions without any blind spots. The second spring allows the L-shaped rods to automatically reset after the thrust is released, causing the heat-insulating cloth to retract quickly. This prevents the heat-insulating cloth from being damaged by prolonged exposure to high temperatures and ensures convenient reuse of the equipment. This structure achieves the coordinated operation of multiple components within a limited space, balancing protective efficiency and equipment durability, and is particularly suitable for high-frequency, high-risk industrial scenarios such as molten iron temperature measurement. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial sectional view of the temperature measuring rod in this utility model; Figure 3 This is a schematic diagram of the internal structure of the bottom end of the temperature measuring rod in this utility model; Figure 4 This is an enlarged cross-sectional view of the bottom of the temperature measuring rod in this utility model; Figure 5 This is a schematic diagram of the enlarged structure of the turntable in this utility model; Figure 6 This is an enlarged cross-sectional schematic diagram of the fixed disk in this utility model.

[0020] In the diagram: 1. Temperature measuring rod; 2. Protective component; 3. Handle; 4. Temperature probe; 21. Shaft; 22. Gear shaft; 23. Linkage plate; 24. Guide block; 25. Arc-shaped guide groove; 26. Disc; 27. Through hole; 28. Pull rod; 29. ​​Spring 1; 210. Turntable; 211. Arc-shaped actuating groove; 212. Fixed plate; 213. Limiting groove; 214. L-shaped rod; 215. Pull ring; 216. Spring 2; 217. Tie rope; 218. Heat insulation cloth; 219. Handle. Detailed Implementation

[0021] 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.

[0022] A molten iron temperature probe with a protective structure, such as Figure 1 - Figure 6As shown, the device includes a temperature measuring rod 1, with a temperature measuring probe 4 at its bottom and a handle 3 at its top. It also includes a protective assembly 2 to prevent molten iron from splashing and burning workers when the temperature measuring probe 4 is measuring the temperature of molten iron. The protective assembly 2 includes a shaft 21 located inside the temperature measuring rod 1 and rotatably connected to it. A gear shaft 22 is passed through and fixedly connected to the shaft 21. A turntable 210 is fixedly connected to the bottom of the gear shaft 22, and an arc-shaped actuating groove 211 is provided at the bottom of the turntable 210. A disc 26 is slidably connected inside the temperature measuring rod 1, with a through hole 27 at the center of the disc 26 through which the gear shaft 22 passes. A linkage plate 23 is rotatably connected to the bottom of the disc 26, and the linkage plate 23 is penetrated by the gear shaft 22. A guide block 24 is fixedly connected to the side of the linkage plate 23. An arc-shaped guide groove 25 is provided on the inner wall of the temperature measuring rod 1, and the guide block 24 is inserted into the arc-shaped guide groove 25. A pull rod 28 is fixedly connected to the top surface of the disc 26. The pull rod 28 passes through the temperature measuring rod 1 and is slidably connected to the temperature measuring rod 1. A handle 219 is fixedly connected to the top of the pull rod 28. A spring 29 is sleeved on the outside of the pull rod 28. One end of the spring 29 is fixedly connected to the top surface of the disc 26, and the other end of the spring 29 is fixedly connected to the inner wall of the temperature measuring rod 1. A fixed plate 212 is fixedly connected inside the temperature measuring rod 1. A limiting groove 213 is formed on the surface of the fixed plate 212. An L-shaped rod 214 is inserted into and slidably connected to the inside of the limiting groove 213. The top of the L-shaped rod 214 is inserted into an arc-shaped actuating groove 211. A second spring 216 is sleeved on the outside of the L-shaped rod 214. One end of the second spring 216 is fixedly connected to the surface of the L-shaped rod 214, and the other end of the second spring 216 is fixedly connected to the inside of the limiting groove 213. L-shaped rod 214 passes through one end of fixed plate 212 and also through temperature measuring rod 1. A pull ring 215 is fixedly connected to the end of L-shaped rod 214 passing through temperature measuring rod 1. A binding rope 217 passes through and is fixedly connected to the inner side of pull ring 215. The operator pulls rod 28 upwards using handle 219. Pull rod 28 causes disc 26 to slide upwards inside temperature measuring rod 1 and compress spring 29. Disc 26, through linkage plate 23, causes guide block 24 to slide along the arc-shaped guide groove 25 on the inner wall of temperature measuring rod 1. Due to the curved path of arc-shaped guide groove 25, guide block 24 causes linkage plate 23 to rotate around gear shaft 22. The rotation of linkage plate 23 drives gear shaft 22 and shaft 21 to rotate synchronously. Gear shaft 22 drives turntable 210 at the bottom to rotate. The arc-shaped actuating groove 211 at the bottom rotates accordingly; during the rotation, the arc-shaped actuating groove 211 pushes the top of the L-shaped rod 214 inserted therein, causing the L-shaped rod 214 to slide outward from the temperature measuring rod 1 within the limiting groove 213 of the fixed plate 212, while simultaneously stretching the second spring 216; when the L-shaped rod 214 moves outward, it drives the pull ring 215 and the binding rope 217 to extend outward, and the binding rope 217 pulls the heat insulation cloth 218 to unfold from the surface of the temperature measuring rod 1, forming a protective barrier around the temperature measuring rod 1, effectively blocking the splashing molten iron.

[0023] A binding rope 217 passes through and is fixedly connected to a heat insulation cloth 218, which is fixedly connected to the surface of the temperature measuring rod 1. There are six sets of L-shaped rods 214, and the six sets of L-shaped rods 214 are arranged in a circular array with the center line of the fixed plate 212 as the axis. There are two sets of guide blocks 24, and the two sets of guide blocks 24 are fixedly connected to the side of the linkage plate 23. After temperature measurement is completed, release handle 219. The restoring force of spring 1 29 pushes disc 26 downward to reset. Disc 26 moves in the opposite direction along arc-shaped guide groove 25 through linkage plate 23 and guide block 24, causing gear shaft 22 and turntable 210 to reverse. Arc-shaped actuation groove 211 of turntable 210 releases the pushing force on L-shaped rod 214. At this time, the contraction force of spring 216 pulls L-shaped rod 214 inward along limit groove 213 to reset. L-shaped rod 214 retracts heat insulation cloth 218 through pull ring 215 and binding rope 217, returning to the initial state. Throughout the process, the six sets of circumferentially arrayed L-shaped rods 214 achieve uniform expansion and contraction of heat insulation cloth 218 through synchronous drive of turntable 210, ensuring all-round protection. The cooperation of two sets of guide blocks 24 and linkage plate 23 ensures the stability of gear shaft 22 rotation, ultimately realizing automatic and rapid deployment of protective barrier during temperature measurement, ensuring the safety of staff.

[0024] In the use of this utility model's molten iron temperature measuring probe with a protective structure, when it is necessary to measure the temperature of molten iron, the operator holds the handle 3 and inserts the temperature measuring probe 4 at the bottom of the measuring rod 1 into the molten iron. At this time, if the molten iron splashes, it may burn the operator. The protective component 2 activates its protective function. First, the operator pulls the lever 28 upward through the handle 219. The lever 28 drives the disc 26 to slide upward inside the measuring rod 1 and compress the spring 29. The disc 26 drives the guide block 24 along the arc-shaped guide groove 25 on the inner wall of the measuring rod 1 through the linkage plate 23. Due to the curved path of the arc-shaped guide groove 25, the guide block 24 drives the linkage plate 23 to rotate around the gear shaft 22. The rotation of the linkage plate 23 drives the gear shaft 22 and the shaft 21 to rotate synchronously. The gear shaft 22 drives the bottom turntable 210 to rotate, and the arc-shaped actuating groove 211 at the bottom of the turntable 210 rotates accordingly. During the rotation, the arc-shaped actuating groove 211 pushes the top of the L-shaped rod 214 inserted therein, causing the L-shaped rod 214 to slide outward from the temperature measuring rod 1 within the limiting groove 213 of the fixed plate 212, while simultaneously stretching the second spring 216. The L-shaped rod 214 slides outward from the temperature measuring rod 1 within the limiting groove 213 of the fixed plate 212. When the device moves outward, it causes the pull ring 215 and the binding rope 217 to extend outward. The binding rope 217 pulls the heat insulation cloth 218 to unfold from the surface of the temperature measuring rod 1, forming a protective barrier around the temperature measuring rod 1, effectively blocking splashing molten iron. After the temperature measurement is completed, the handle 219 is released, and the restoring force of the spring 29 pushes the disc 26 to return to its original position. The disc 26 moves in the opposite direction along the arc-shaped guide groove 25 through the linkage plate 23 and the guide block 24, causing the gear shaft 22 and the turntable 210 to reverse. The arc-shaped actuation groove 211 of the turntable 210 releases the pushing force on the L-shaped rod 214. At this time, the spring... The contraction force of the second 216 pulls the L-shaped rod 214 inward along the limiting groove 213 to reset. The L-shaped rod 214 retracts the heat insulation cloth 218 through the pull ring 215 and the binding rope 217, restoring it to its initial state. Throughout the process, the six sets of circumferentially arrayed L-shaped rods 214 achieve uniform expansion and contraction of the heat insulation cloth 218 through the synchronous drive of the turntable 210, ensuring all-round protection. The cooperation between the two sets of guide blocks 24 and the linkage plate 23 ensures the stability of the rotation of the gear shaft 22, ultimately realizing the automatic and rapid deployment of the protective barrier during the temperature measurement process, ensuring the safety of the staff.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0026] 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 molten iron temperature measuring probe with a protective structure, comprising a temperature measuring rod (1), characterized in that: The temperature measuring rod (1) is provided with a temperature measuring probe (4) at the bottom and a handle (3) at the top. It also includes a protective component (2) for the temperature probe (4) to prevent molten iron from splashing and burning workers when measuring the temperature of molten iron; The protective component (2) includes a shaft (21), which is located inside the temperature measuring rod (1) and rotatably connected to it. A gear shaft (22) is fixedly connected through the shaft (21). A turntable (210) is fixedly connected to the bottom of the gear shaft (22). An arc-shaped actuation groove (211) is provided at the bottom of the turntable (210). A disc (26) is slidably connected inside the temperature measuring rod (1). A through hole (27) is provided at the center of the disc (26). The gear shaft (22) passes through the through hole (27). A linkage plate (23) is rotatably connected to the bottom of the disc (26). The linkage plate (23) is penetrated by the gear shaft (22). A guide block (24) is fixedly connected to the side of the linkage plate (23). An arc-shaped guide groove (25) is provided on the inner wall of the temperature measuring rod (1). The guide block (24) is inserted into the arc-shaped guide groove (25).

2. The molten iron temperature measuring probe with a protective structure according to claim 1, characterized in that: A pull rod (28) is fixedly connected to the top surface of the disk (26). The pull rod (28) passes through the temperature measuring rod (1) and is slidably connected to the temperature measuring rod (1).

3. The molten iron temperature measuring probe with a protective structure according to claim 2, characterized in that: A handle (219) is fixedly connected to the top of the pull rod (28), and a spring (29) is sleeved on the outside of the pull rod (28). One end of the spring (29) is fixedly connected to the top surface of the disc (26), and the other end of the spring (29) is fixedly connected to the inner wall of the temperature measuring rod (1).

4. The molten iron temperature measuring probe with a protective structure according to claim 3, characterized in that: The temperature measuring rod (1) is internally fixedly connected to a fixed plate (212), and a limit groove (213) is formed on the surface of the fixed plate (212).

5. The molten iron temperature measuring probe with a protective structure according to claim 4, characterized in that: An L-shaped rod (214) is inserted into and slidably connected to the inner side of the limiting groove (213), and the top end of the L-shaped rod (214) is inserted into the arc-shaped actuating groove (211).

6. The molten iron temperature measuring probe with a protective structure according to claim 5, characterized in that: A second spring (216) is sleeved on the outside of the L-shaped rod (214). One end of the second spring (216) is fixedly connected to the surface of the L-shaped rod (214), and the other end of the second spring (216) is fixedly connected to the inside of the limiting groove (213).

7. The molten iron temperature measuring probe with a protective structure according to claim 6, characterized in that: The L-shaped rod (214) passes through one end of the fixed plate (212) and also passes through the temperature measuring rod (1). A pull ring (215) is fixedly connected to one end of the L-shaped rod (214) that passes through the temperature measuring rod (1). A binding rope (217) passes through and is fixedly connected to the inside of the pull ring (215).

8. The molten iron temperature measuring probe with a protective structure according to claim 7, characterized in that: The binding rope (217) passes through and is fixedly connected to the heat insulation cloth (218), and the heat insulation cloth (218) is fixedly connected to the surface of the temperature measuring rod (1).

9. A molten iron temperature measuring probe with a protective structure according to claim 5, characterized in that: The number of L-shaped rods (214) is six, and the six groups of L-shaped rods (214) are arranged in a circular array with the center line of the fixed disk (212) as the axis.

10. A molten iron temperature measuring probe with a protective structure according to claim 1, characterized in that: The number of guide blocks (24) is two sets, and the two sets of guide blocks (24) are respectively fixedly connected to the side of the linkage plate (23).

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