Opening and closing device based on calcium carbide pot inserting plate

Abstract

The utility model provides an opening and closing device based on a calcium carbide pot inserting plate, and relates to the technical field of calcium carbide pots, the opening and closing device comprises a translation rotating assembly and a calcium carbide pot body, the top of the translation rotating assembly is provided with a force arm assembly, the force arm assembly is provided with an operation assembly, and the translation rotating assembly comprises a base; a lead screw is rotationally installed in the base, and guide rods which are symmetrically distributed are fixedly installed in the base. The horizontal precise translation is realized through the screw rod and the guide rod, and the basic shaft is driven by the gear pair to complete the rotary positioning. A rotary supporting structure formed by the auxiliary blocks and the annular sliding grooves effectively disperses operation loads from single-point stress of the basic shaft to multi-point and multi-direction bearing, the rigidity, the anti-overturning capacity and the movement stability of the whole structure are greatly improved, and therefore the positioning repetition precision and the mechanical durability of the device during long-term operation are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of calcium carbide pot technology, and more specifically, to an opening and closing device based on a calcium carbide pot insert plate. Background Technology

[0002] Calcium carbide (calcium carbide) is an important basic chemical raw material, mainly produced by smelting lime and coke in an electric arc furnace. In the calcium carbide production process, molten calcium carbide is discharged from the smelting furnace to a calcium carbide pot, where it is cooled, transferred, and then crushed. The bottom of the calcium carbide pot typically has a discharge port, which is opened and closed via a baffle plate device to control the discharge and interception of high-temperature molten calcium carbide. This step directly affects production continuity, energy efficiency, and operational safety, and is one of the key control points in the calcium carbide production process.

[0003] For example, the "Opening and Closing Device and Structure of Calcium Carbide Pot Insert Plate" disclosed in Chinese Utility Model Patent (Publication No.: CN222497800U) states that: the utility model designs a dedicated calcium carbide pot insert plate structure and is equipped with a calcium carbide pot insert plate opening and closing device with a higher degree of automation, so that the opening and closing of the calcium carbide pot insert plate does not require manual operation, enabling remote operation while making the operation more efficient and faster, and effectively avoiding dangerous accidents such as burns and crushing injuries, which is worthy of widespread promotion and use;

[0004] Regarding the aforementioned technologies, this device has some shortcomings. In actual use, its core support and motion unit rely on a base cylinder driven by a third electric motor to achieve overall rotational positioning. However, all mechanical structures above the base cylinder, including the robotic arm, drive mechanism, and end effector, bear load and transmit torque through this base cylinder at a single point. During actual operation cycles, when performing the insertion / removal of the insert plate, the lifting force of the electric push rod and the interaction force of the working hook generate a huge overturning moment and alternating load. These loads are ultimately borne entirely by the base cylinder and its slewing bearing. This single-point, cantilevered force-bearing mode not only leads to stress concentration at the base cylinder connection, easily causing structural fatigue damage, but also makes the rotational positioning accuracy prone to drift under load. Long-term operation under high load and high frequency conditions will severely restrict the device's operational stability, positioning repeatability, and mechanical life.

[0005] Therefore, we have made improvements to this by proposing an opening and closing device based on the calcium carbide pot plug plate. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an opening and closing device based on a calcium carbide pot insert plate, which solves the problems mentioned in the background.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An opening and closing device based on a calcium carbide pot insert plate includes a translational rotation assembly and a calcium carbide pot body. A lever assembly is provided on the top of the translational rotation assembly, and a working component is provided on the lever assembly. The translational rotation assembly includes a base, a lead screw is rotatably mounted inside the base, and symmetrically distributed guide rods are fixedly mounted inside the base. A movable seat is sleeved on the outer wall of the lead screw, and a base shaft is rotatably mounted on the top of the movable seat. A first servo motor is fixedly mounted on one side of the outer surface of the base, and the drive end of the first servo motor passes through the base and extends into the interior of the base. The drive end of the first servo motor is fixedly connected to one end of the lead screw. A drive assembly and a limit assembly are provided on the top of the movable seat.

[0009] The limiting component includes an annular slide groove formed on the top of the movable seat, and a plurality of auxiliary blocks are slidably mounted on the annular slide groove.

[0010] The top two sides of the calcium carbide pot body are provided with slots, and insert plates are inserted into the slots.

[0011] As a preferred technical solution of this application, the lever arm assembly includes a base fixedly installed on the top of the base shaft, a vertical beam fixedly installed on the top of the base, a horizontal beam fixedly installed on the top of the vertical beam, symmetrically distributed diagonal braces welded between the horizontal beam and the vertical beam, a working component provided at the end of the horizontal beam, and the top of the auxiliary block fixedly connected to the bottom of the base.

[0012] As a preferred technical solution of this application, the working component includes a hydraulic telescopic rod fixedly installed at the top of the end of a crossbeam. The driving end of the hydraulic telescopic rod passes through the crossbeam and extends to the bottom of the crossbeam. A horizontal rail is fixedly installed at the driving end of the hydraulic telescopic rod. A bidirectional threaded rod is rotatably installed inside the horizontal rail. Symmetrically distributed adjusting blocks are sleeved on the outer wall of the bidirectional threaded rod. The adjusting blocks are slidably installed on the horizontal rail. A working hook is fixedly installed at the bottom of each of the two adjusting blocks. A third servo motor is fixedly installed at the front end of the outer surface of the horizontal rail. The driving end of the third servo motor passes through the horizontal rail and extends into the interior of the horizontal rail. The driving end of the third servo motor is fixedly connected to the front end of the bidirectional threaded rod.

[0013] As a preferred technical solution of this application, the drive assembly includes a second servo motor fixedly installed on the top of the movable seat, a second gear fixedly installed on the drive end of the second servo motor, and a first gear fixedly installed on the outer wall of the base shaft, wherein the first gear meshes with the second gear.

[0014] As a preferred technical solution of this application, a high-definition camera is fixedly installed on the outer wall of the vertical beam.

[0015] As a preferred technical solution of this application, the outer wall of the bidirectional threaded rod is provided with symmetrically distributed left-hand threads and right-hand threads, and the adjusting block is provided with a threaded hole adapted to the bidirectional threaded rod. The adjusting block is threadedly connected to the bidirectional threaded rod through the threaded hole.

[0016] As a preferred technical solution of this application, the top of the cross rail is fixedly equipped with symmetrically distributed limiting rods, and the cross beam is provided with sliding holes corresponding to the position and number of the limiting rods. The cross beam is slidably connected to the limiting rods through the sliding holes.

[0017] As a preferred technical solution of this application, the movable seat is provided with a threaded hole adapted to the lead screw, and the movable seat is threadedly connected to the lead screw through the threaded hole. The movable seat is provided with a sliding hole corresponding to the position and number of the guide rod, and the movable seat is slidably connected to the guide rod through the sliding hole.

[0018] As a preferred technical solution of this application, the auxiliary block is an inverted T-shaped mechanism, and the auxiliary block is adapted to the annular groove.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In the scheme of this application:

[0021] 1. Through the coordinated use of the translation and rotation components, base, first servo motor, guide rod, lead screw, moving seat, first gear, base shaft, second gear, second servo motor, annular slide, and auxiliary block, precise horizontal translation is achieved via the lead screw and guide rod, and rotational positioning is completed by driving the base shaft through the gear pair. The rotational support structure formed by the auxiliary block and annular slide effectively distributes the working load from a single point of force on the base shaft to multi-point, multi-directional bearing, significantly improving the rigidity, anti-overturning ability, and motion stability of the overall structure, thereby significantly enhancing the positioning repeatability and mechanical durability of the device during long-term operation.

[0022] 2. Through the coordinated use of the lever arm assembly, working assembly, vertical beam, base, diagonal brace, crossbeam, hydraulic telescopic rod, limit rod, horizontal rail, third servo motor, adjusting block, working hook, and bidirectional threaded rod, the hydraulic telescopic rod directly drives the horizontal rail and working hook to rise and fall vertically. Combined with the bidirectional threaded rod, it precisely controls the symmetrical opening and closing of the two hooks, achieving highly efficient and coordinated gripping action. The lever arm assembly adopts an inverted triangular rigid frame, significantly improving overall load-bearing stability. Direct drive and compact layout optimize the force transmission path, effectively overcoming the defects of uneven force distribution and easy jamming in traditional mechanisms, ensuring a smooth, precise, and reliable insertion and removal process for the insertion plate. Attached Figure Description

[0023] Figure 1A three-dimensional structural schematic diagram of an opening and closing device based on a calcium carbide pot plug provided for this application;

[0024] Figure 2 A schematic diagram of the translational and rotating component in an opening and closing device based on a calcium carbide pot baffle provided in this application;

[0025] Figure 3 A schematic diagram of the connection structure between the lever arm assembly and the working assembly in an opening and closing device based on a calcium carbide pot baffle provided in this application;

[0026] Figure 4 A schematic diagram of the structure of an auxiliary block in an opening and closing device based on a calcium carbide pot plug provided in this application;

[0027] Figure 5 This is a schematic diagram of the structure of the calcium carbide pot body in an opening and closing device based on a calcium carbide pot plug provided in this application.

[0028] The image shows:

[0029] 1. Translation and rotation assembly; 2. Lever arm assembly; 3. Working assembly; 4. Base; 5. First servo motor; 6. Guide rod; 7. Lead screw; 8. Moving seat; 9. First gear; 10. Base shaft; 11. Second gear; 12. Second servo motor; 13. Annular slide; 14. Auxiliary block; 15. Vertical beam; 16. Base; 17. Diagonal brace; 18. Crossbeam; 19. Hydraulic telescopic rod; 20. Limiting rod; 21. Horizontal rail; 22. Third servo motor; 23. Adjusting block; 24. Working hook; 25. Bidirectional threaded rod; 26. Calcium carbide pot body; 27. Insert plate; 28. High-definition camera. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Example 1

[0035] Please refer to Figures 1-5 An opening and closing device based on a calcium carbide pot insert plate includes a translational rotation assembly 1 and a calcium carbide pot body 26. A lever assembly 2 is provided on the top of the translational rotation assembly 1, and a working assembly 3 is provided on the lever assembly 2. The translational rotation assembly 1 includes a base 4, a lead screw 7 is rotatably installed inside the base 4, and symmetrically distributed guide rods 6 are fixedly installed inside the base 4. A movable seat 8 is sleeved on the outer wall of the lead screw 7, and a base shaft 10 is rotatably installed on the top of the movable seat 8. A first servo motor 5 is fixedly installed on one side of the outer surface of the base 4. The drive end of the first servo motor 5 passes through the base 4 and extends into the interior of the base 4. The drive end of the first servo motor 5 is fixedly connected to one end of the lead screw 7. A drive assembly is provided on the top of the movable seat 8, and a limit assembly is provided on the top of the movable seat 8.

[0036] The limiting component includes an annular slide groove 13 opened on the top of the movable seat 8, and several auxiliary blocks 14 are slidably installed on the annular slide groove 13.

[0037] Slots are provided on both sides of the top of the calcium carbide pot body 26, and insert plates 27 are inserted into the slots.

[0038] It should be noted that the specific connection structure between the calcium carbide pot body 26 and the plug plate 27, which is the application object of this utility model, falls within the scope of existing technology. For example, the connection method described in patent document CN222497800U can be used. The technical solution of this utility model focuses on and aims to solve the stability and reliability problems caused by uneven distribution of mechanical load and single-point bearing of the support structure in existing calcium carbide pot plug plate opening and closing devices. By optimizing the structure of the lever arm transmission and support system, it achieves force balance and long-term stable operation.

[0039] Furthermore, the drive assembly includes a second servo motor 12 fixedly mounted on the top of the movable base 8, a second gear 11 fixedly mounted on the drive end of the second servo motor 12, and a first gear 9 fixedly mounted on the outer wall of the base shaft 10, the first gear 9 meshing with the second gear 11.

[0040] Furthermore, a high-definition camera 28 is fixedly installed on the outer wall of the vertical beam 15. This provides real-time visual feedback for the positioning of the working component 3 and the status recognition of the insertion plate 27, assisting the controller in achieving precise alignment and grasping.

[0041] Furthermore, the movable seat 8 has threaded holes adapted to the lead screw 7, and the movable seat 8 is threadedly connected to the lead screw 7 through these threaded holes. The movable seat 8 also has sliding holes corresponding to the position and number of guide rods 6, and the movable seat 8 is slidably connected to the guide rods 6 through these sliding holes. This efficiently and without deflection converts the rotational motion of the lead screw 7 into linear motion, ensuring the positioning accuracy and operational stability of the lever arm assembly 2 and the working assembly 3 during translation.

[0042] Furthermore, the auxiliary block 14 is an inverted T-shaped mechanism that is adapted to the annular groove 13. This creates reliable constraints in both the circumferential and radial directions, ensuring smooth guidance during the rotation of the base 16 and providing effective vertical load-bearing support, significantly enhancing the anti-overturning capability and structural rigidity of the base shaft 10 and the overall lever arm assembly 2.

[0043] Example 2

[0044] The opening and closing device based on the calcium carbide pot plug provided in Embodiment 1 is further optimized, specifically, as follows: Figures 1-5 As shown, the lever arm assembly 2 includes a base 16 fixedly installed at the top of the base shaft 10, a vertical beam 15 fixedly installed at the top of the base 16, a horizontal beam 18 fixedly installed at the top of the vertical beam 15, symmetrically distributed diagonal braces 17 welded between the horizontal beam 18 and the vertical beam 15, a working component 3 provided at the end of the horizontal beam 18, and the top of the auxiliary block 14 fixedly connected to the bottom of the base 16.

[0045] Furthermore, the working component 3 includes a hydraulic telescopic rod 19 fixedly installed at the top of the end of the crossbeam 18. The driving end of the hydraulic telescopic rod 19 passes through the crossbeam 18 and extends to the bottom of the crossbeam 18. A horizontal rail 21 is fixedly installed at the driving end of the hydraulic telescopic rod 19. A bidirectional threaded rod 25 is rotatably installed inside the horizontal rail 21. Symmetrically distributed adjusting blocks 23 are sleeved on the outer wall of the bidirectional threaded rod 25. The adjusting blocks 23 are slidably installed on the horizontal rail 21. A working hook 24 is fixedly installed at the bottom of each of the two adjusting blocks 23. A third servo motor 22 is fixedly installed at the front end of the outer surface of the horizontal rail 21. The driving end of the third servo motor 22 passes through the horizontal rail 21 and extends into the interior of the horizontal rail 21. The driving end of the third servo motor 22 is fixedly connected to the front end of the bidirectional threaded rod 25. The third servo motor 22 directly drives the bidirectional threaded rod 25 to rotate, which can precisely control the two adjusting blocks 23 to drive the working hook 24 to perform symmetrical opening and closing actions. This achieves efficient decoupling and coordinated control of vertical motion and horizontal centering motion during the gripping and insertion of the insertion plate 27, improving the stability and accuracy of the operation.

[0046] Furthermore, the outer wall of the bidirectional threaded rod 25 is provided with symmetrically distributed left-hand and right-hand threads. The adjusting block 23 has a threaded hole adapted to the bidirectional threaded rod 25, and the adjusting block 23 is threadedly connected to the bidirectional threaded rod 25 through the threaded hole. Under the drive of a single third servo motor 22, the two working hooks 24 can be precisely and synchronously controlled to achieve equal speed, symmetrical relative or opposite movement, ensuring the gripping centering and operational synchronization of the insert plate 27.

[0047] Furthermore, symmetrically distributed limiting rods 20 are fixedly installed on the top of the horizontal rail 21, and sliding holes corresponding to the position and number of the limiting rods 20 are opened on the horizontal beam 18. The horizontal beam 18 is slidably connected to the limiting rods 20 through the sliding holes. This forms a rigid guide structure in the vertical direction, which effectively limits the radial offset and rotation of the horizontal rail 21 during the lifting process, ensuring the linear accuracy and posture stability of the working hook 24.

[0048] It should be noted that the controller control circuit can be implemented by those skilled in the art through simple programming, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0049] The usage process of the opening and closing device based on the calcium carbide pot plug provided by this utility model is as follows:

[0050] During operation, the device first activates the first servo motor 5, driven by the controller, which rotates the lead screw 7 at its drive end. Through the threaded transmission between the lead screw 7 and the moving seat 8, and combined with the sliding guidance of the moving seat 8 along the guide rod 6, the moving seat 8 achieves stable translation along the direction of the guide rod 6. The displacement of the moving seat 8 is transmitted to the lever arm assembly 2 and the working assembly 3 through the base shaft 10, causing them to move as a whole. When angle adjustment is required, the second servo motor 12 is activated, driving the second gear 11 to rotate. Through the meshing transmission between the second gear 11 and the first gear 9, the first gear 9 drives the base shaft 10 to rotate, thereby achieving the orientation adjustment of the lever arm assembly 2 and the working assembly 3. When the base shaft 10 rotates, it synchronously drives the base 16 to rotate, and the base 16 pushes the auxiliary block 14 to slide along the annular groove 13, forming a stable rotary support structure. During the subsequent opening and closing of the plate 27 on the calcium carbide pot body 26 by the working component 3, the load generated by the working component 3 and the lever arm component 2 will be transmitted to the base shaft 10. The base 16 and the moving seat 8 are limited and supported by several auxiliary blocks 14. The auxiliary blocks 14 can effectively distribute the load borne by the base shaft 10, avoid the base shaft 10 being subjected to single-point force, thereby significantly improving the overall stability of the device operation, the repeatability of positioning, and the service life of the mechanical structure.

[0051] After positioning the working component 3, the hydraulic telescopic rod 19 is activated. The drive end of the hydraulic telescopic rod 19 directly drives the horizontal rail 21 to move precisely vertically. The horizontal rail 21, through the adjusting block 23, synchronously drives the two working hooks 24 to descend to the designated working position. Subsequently, the third servo motor 22 is controlled to operate, and its drive end drives the bidirectional threaded rod 25 to rotate. Utilizing the synchronous reverse transmission action of the left-hand and right-hand threads on the bidirectional threaded rod 25, combined with the sliding guide constraint between the adjusting block 23 and the horizontal rail 21, the two adjusting blocks 23 drive the working hooks 24 to perform precise relative or opposite movements. When the two working hooks 24 move relative to each other, they can be accurately inserted into the corresponding interface of the insert plate 27. Afterward, by operating the hydraulic telescopic rod 19 to retract and move upward, the insert plate 27 can be smoothly pulled out from the calcium carbide pot body 26. The structure features significant optimizations in the arrangement and force design of the lever arm assembly 2 and the working assembly 3: the lever arm assembly 2 forms a rigid inverted triangular support frame through the vertical beam 15, the diagonal brace 17, and the horizontal beam 18, providing a highly stable load-bearing foundation for the working assembly 3; at the same time, the vertical drive of the working hook 24 is directly executed by the hydraulic telescopic rod 19. Compared with the existing technology that uses an electric push rod to indirectly drive through a long lever arm, this design achieves the shortest driving force transmission path, significantly improves the force balance, ensures a smooth and stable lifting process, and fundamentally avoids lifting jamming caused by structural deformation or torque imbalance.

[0052] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An opening and closing device based on a calcium carbide pot insert plate, characterized in that, The assembly includes a translational rotation component (1) and a calcium carbide pot body (26). The top of the translational rotation component (1) is provided with a lever assembly (2), and the lever assembly (2) is provided with a working component (3). The translational rotation component (1) includes a base (4). A lead screw (7) is rotatably installed inside the base (4). A symmetrically distributed guide rod (6) is fixedly installed inside the base (4). A movable seat (8) is sleeved on the outer wall of the lead screw (7). A base shaft (10) is rotatably installed on the top of the movable seat (8). A first servo motor (5) is fixedly installed on one side of the outer surface of the base (4). The drive end of the first servo motor (5) passes through the base (4) and extends into the interior of the base (4). The drive end of the first servo motor (5) is fixedly connected to one end of the lead screw (7). A drive assembly is provided on the top of the movable seat (8). A limit assembly is provided on the top of the movable seat (8). The limiting component includes an annular slide groove (13) opened on the top of the movable seat (8), and a number of auxiliary blocks (14) are slidably installed on the annular slide groove (13). The top two sides of the calcium carbide pot body (26) are provided with slots, and insert plates (27) are inserted into the slots.

2. The opening and closing device based on the calcium carbide pot insert plate according to claim 1, characterized in that, The lever arm assembly (2) includes a base (16) fixedly installed on the top of the base shaft (10), a vertical beam (15) fixedly installed on the top of the base (16), a horizontal beam (18) fixedly installed on the top of the vertical beam (15), symmetrically distributed diagonal braces (17) welded between the horizontal beam (18) and the vertical beam (15), a working component (3) is provided at the end of the horizontal beam (18), and the top of the auxiliary block (14) is fixedly connected to the bottom of the base (16).

3. The opening and closing device based on the calcium carbide pot insert plate according to claim 1, characterized in that, The working component (3) includes a hydraulic telescopic rod (19) fixedly installed at the top of the end of the crossbeam (18). The driving end of the hydraulic telescopic rod (19) passes through the crossbeam (18) and extends to the bottom of the crossbeam (18). A horizontal rail (21) is fixedly installed at the driving end of the hydraulic telescopic rod (19). A bidirectional threaded rod (25) is rotatably installed inside the horizontal rail (21). A symmetrically distributed adjusting block (23) is sleeved on the outer wall of the bidirectional threaded rod (25). The adjusting block (23) is slidably installed on the horizontal rail (21). A working hook (24) is fixedly installed at the bottom of each of the two adjusting blocks (23). A third servo motor (22) is fixedly installed at the front end of the outer surface of the horizontal rail (21). The driving end of the third servo motor (22) passes through the horizontal rail (21) and extends into the interior of the horizontal rail (21). The driving end of the third servo motor (22) is fixedly connected to the front end of the bidirectional threaded rod (25).

4. The opening and closing device based on the calcium carbide pot insert plate according to claim 1, characterized in that, The drive assembly includes a second servo motor (12) fixedly mounted on the top of the movable base (8), a second gear (11) fixedly mounted on the drive end of the second servo motor (12), and a first gear (9) fixedly mounted on the outer wall of the base shaft (10), the first gear (9) meshing with the second gear (11).

5. The opening and closing device based on the calcium carbide pot insert plate according to claim 2, characterized in that, A high-definition camera (28) is fixedly installed on the outer wall of the vertical beam (15).

6. The opening and closing device based on the calcium carbide pot insert plate according to claim 3, characterized in that, The outer wall of the bidirectional threaded rod (25) is provided with symmetrically distributed left-hand threads and right-hand threads. The adjusting block (23) is provided with a threaded hole that matches the bidirectional threaded rod (25). The adjusting block (23) is threadedly connected to the bidirectional threaded rod (25) through the threaded hole.

7. The opening and closing device based on the calcium carbide pot insert plate according to claim 3, characterized in that, The top of the horizontal rail (21) is fixedly equipped with symmetrically distributed limiting rods (20), and the horizontal beam (18) is provided with sliding holes corresponding to the position and number of the limiting rods (20). The horizontal beam (18) is slidably connected to the limiting rods (20) through the sliding holes.

8. The opening and closing device based on the calcium carbide pot insert plate according to claim 1, characterized in that, The movable seat (8) has a threaded hole that matches the lead screw (7). The movable seat (8) is threadedly connected to the lead screw (7) through the threaded hole. The movable seat (8) has a sliding hole that corresponds to the position and number of the guide rod (6). The movable seat (8) is slidably connected to the guide rod (6) through the sliding hole.

9. The opening and closing device based on the calcium carbide pot insert plate according to claim 1, characterized in that, The auxiliary block (14) is an inverted T-shaped mechanism, and the auxiliary block (14) is adapted to the annular groove (13).

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