Rocker arm fixing device for annealing furnace gate

By using an elastic buffer block in the rocker arm fixing device of the annealing furnace to absorb vibration and impact, the problem of cam breakage was solved, the service life was extended, and the stability of the fixing device was improved.

CN223837293UActive Publication Date: 2026-01-27HENAN HUAXING GLASS CO LTD
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Patent Information

Application Number
CN202520461449.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-01-27
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The rocker arm of the annealing furnace frequently collides with the locking protrusion under vibration, causing the locking protrusion to be subjected to periodic impacts, making it prone to breakage and losing its fixing effect.

Method used

An elastic buffer block is used instead of a locking protrusion to withstand impact force. The impact energy is absorbed through the elastic deformation of the buffer block, and the buffer block is replaced when the elastic limit is exceeded. Combined with the adjustable design of the locking protrusion, the interval is reduced and the fixation stability is improved.

Benefits of technology

It extends the service life of the locking lugs, reduces the vibration and impact force of the rocker arm, and improves the stability and reliability of the fixing device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rocker arm fixing device for an annealing furnace gate, which relates to the field of production of glass bottles and is technically characterized by comprising a conveying frame, a conveying belt is arranged at the top of the conveying frame, an annealing furnace body is arranged at the top of the conveying frame, the annealing furnace body is positioned above the conveying belt, and a rocker arm is arranged on the annealing furnace body. A gate body is slidably connected to one side of the annealing furnace body, a traction steel cable is arranged at the top of the gate body, a supporting plate is arranged on one side of the annealing furnace body, a winding drum is rotatably connected to one side of the supporting plate, one end of the traction steel cable is wound around the outside of the winding drum, and a rocker arm is arranged on one side of the winding drum. A connecting base is arranged on one side of the supporting plate, and the technical problems that a rocker arm continuously collides with two clamping protrusions under the action of vibration, so that the clamping protrusions need to bear periodic impact in the fixing process, the clamping protrusions are prone to breakage, and the rocker arm loses the fixing effect are solved.
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Description

Technical Field

[0001] This utility model relates to the field of glass bottle production, and in particular to a rocker arm fixing device for an annealing furnace gate. Background Technology

[0002] During the glass bottle forming process, rapid cooling can cause uneven stress inside the bottle. The annealing furnace controls the temperature to allow the glass bottle to cool slowly, thus eliminating these stresses. Typically, a liftable gate is installed at the exit of the annealing furnace. The exit is a critical transition zone for the glass bottle after annealing to enter the ambient temperature environment. By adjusting the opening and closing of the gate, the amount of cold air entering and the rate of heat exchange are controlled to prevent excessive temperature difference between the surface and the interior of the glass bottle due to a sudden drop in temperature, which could cause new stress or breakage. Currently, the gate is mainly raised and lowered by a steel cable, which is wound or unwound by a drum. The rocker arm of the drum is used to drive the drum to rotate.

[0003] Typically, the rocker arm is fixed by a fixing device, which includes a movable retainer with two retaining protrusions on both sides, limiting the rocker arm between the two protrusions. However, the circulating fan in the annealing furnace generates vibrations when rotating at high speed. These vibrations are transmitted to the annealing furnace, which in turn transmits them to the gate and the rocker arm. This causes the rocker arm to continuously collide with the two retaining protrusions under the influence of vibration. Consequently, the retaining protrusions need to withstand periodic impacts during fixing, making them prone to breakage and causing the rocker arm to lose its fixing effect. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a rocker arm fixing device for an annealing furnace gate. The purpose is to solve the technical problem that the rocker arm will continuously collide with the two locking protrusions under the action of vibration, which causes the locking protrusions to be subjected to periodic impacts during fixing, and the locking protrusions are prone to breakage, resulting in the rocker arm losing its fixing effect.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A rocker arm fixing device for an annealing furnace gate includes a conveyor frame, a conveyor belt at the top of the conveyor frame, an annealing furnace body at the top of the conveyor frame, the annealing furnace body being located above the conveyor belt, a gate body slidably connected to one side of the annealing furnace body, a traction cable at the top of the gate body, a support plate on one side of the annealing furnace body, a drum rotatably connected to one side of the support plate, one end of the traction cable wound around the outside of the drum, a rocker arm on one side of the drum, a connecting seat on one side of the support plate, a movable cavity on one side of the connecting seat, a movable seat slidably connected inside the movable cavity, a locking seat on one side of the movable seat, the locking seat being close to the rocker arm, two locking protrusions on one side of the locking seat forming a limiting interval, so that the rocker arm is located within the limiting interval, and a buffer block on one side of the two locking protrusions, the buffer block being elastic, the two buffer blocks being located inside the limiting interval, so that the two buffer blocks are respectively located on both sides of the rocker arm.

[0007] After the rocker arm is adjusted, the movable seat slides toward the rocker arm, and the locking seat approaches the rocker arm. At this time, the rocker arm is within the limit interval, and the two buffer blocks are located on both sides of the rocker arm. When the vibration is transmitted to the rocker arm, when the rocker arm collides with the two locking protrusions, the buffer blocks take the impact force in place of the locking protrusions. The elastic deformation of the buffer blocks absorbs the impact energy, reduces the impact force transmitted to the rocker arm, and extends the service life of the locking protrusions.

[0008] Furthermore, in this application, a fixed slot is provided on one side of the card protrusion, and a fixed block is provided on one side of the buffer block. The fixed block is elastic, slightly larger than the fixed slot, and the fixed block engages with the fixed slot.

[0009] During an impact, the buffer block is continuously compressed. If the stress exceeds the elastic limit of the material, plastic deformation will occur, causing the buffer block to change shape or fail. At this time, the fixed block is disengaged from the fixed slot, which facilitates the replacement of the buffer block and maintains the protection of the locking protrusion.

[0010] Furthermore, in this application, the card protrusion has a first connecting hole inside, and the card seat has a second connecting hole on one side. A connecting bolt passes through the first connecting hole, and the connecting bolt is threaded into the second connecting hole.

[0011] When the gap between the locking protrusion and the rocker arm is large, the second connecting hole and the first connecting hole can be unscrewed by connecting bolts to replace the locking protrusion, so as to reduce the gap between the locking protrusion and the rocker arm by replacing the locking protrusion with one of different lengths.

[0012] Furthermore, in this application, a connection slot is provided on one side of the card holder, and a connection plug is provided on the other side of the card protrusion. The shape of the connection plug matches that of the connection slot, and the connection plug is inserted into the connection slot.

[0013] Furthermore, in this application, a first fixing hole is provided on the other side of the connecting seat. The first fixing hole is away from the support plate and is connected to the movable cavity. A second fixing hole is provided inside the movable seat. A first fixing bolt passes through the first fixing hole and is threadedly engaged with the second fixing hole.

[0014] Furthermore, in this application, a connecting groove is provided on one side of the drum, and a connecting post is provided on one side of the rocker arm. The connecting post has a pentagonal cross-section, and the shape of the connecting groove matches that of the connecting post. The connecting post is inserted into the connecting groove. A first locking hole is provided inside the rocker arm, and a second locking hole is provided inside the connecting groove. A locking bolt passes through the first locking hole, and the locking bolt is threaded into the second locking hole.

[0015] Furthermore, in this application, a first limiting annular groove is provided on the outer edge of the drum, one end of the traction steel cable is wound inside the first limiting annular groove, a first tensioning roller is rotatably connected to one side of the annealing furnace body, a second limiting annular groove is provided on the outer edge of the first tensioning roller, a section of the traction steel cable rolls with the first tensioning roller, so that a section of the traction steel cable is located inside the second limiting annular groove, a second tensioning roller is rotatably connected to one side of the support plate, a third limiting annular groove is provided on the outer edge of the second tensioning roller, a section of the traction steel cable rolls with the second tensioning roller, so that a section of the traction steel cable is located inside the third limiting annular groove.

[0016] Furthermore, in this application, the top of the gate body is provided with a fixing ring, the inside of the fixing ring is hooked with a connecting hook, one end of the connecting hook is provided with an installation cylinder, the other end of the traction steel cable passes through the inside of the installation cylinder, a third fixing hole is opened on one side of the installation cylinder, a second fixing bolt is threaded into the third fixing hole, and the second fixing bolt abuts against the other end of the traction steel cable.

[0017] Furthermore, in this application, one end of the gate body is provided with an installation groove, and the interior of the installation groove is provided with an insulation board, which is made of insulation material, and the insulation board is close to the outlet of the annealing furnace body.

[0018] Furthermore, in this application, two guide frames are provided on one side of the annealing furnace body, and a guide groove is provided on one side of the guide frame. The gate body is located between the two guide frames, and guide sliders are provided on both sides of the gate body. The guide sliders on both sides of the gate body slide in cooperation with the guide grooves of the two guide frames respectively.

[0019] This utility model has the following beneficial effects:

[0020] After the rocker arm is adjusted, the movable seat slides toward the rocker arm, and the locking seat approaches the rocker arm. At this time, the rocker arm is within the limit interval, and the two buffer blocks are located on both sides of the rocker arm. When the vibration is transmitted to the rocker arm, when the rocker arm collides with the two locking protrusions, the buffer blocks take the impact force in place of the locking protrusions. The elastic deformation of the buffer blocks absorbs the impact energy, reduces the impact force transmitted to the rocker arm, and extends the service life of the locking protrusions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the traction cable of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the insulation board of this utility model.

[0024] Figure 4 This is a schematic diagram of the mounting cylinder of this utility model.

[0025] Figure 5 This is a schematic diagram of the limiting interval of this utility model.

[0026] Figure 6 This is a schematic diagram of the structure of the first limiting ring groove of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the buffer block of this utility model.

[0028] In the attached figures, the following labels are used:

[0029] 1. Conveyor frame; 2. Conveyor belt; 3. Annealing furnace body; 4. Gate body; 5. Guide frame; 6. Guide chute; 7. Guide slider; 8. Mounting groove; 9. Insulation board; 10. Support plate; 11. Traction cable; 12. First tension roller; 13. Second limit ring groove; 14. Second tension roller; 15. Third limit ring groove; 16. Drum; 17. First limit ring groove; 18. Mounting cylinder; 19. Connecting hook; 20. Fixing ring; 21. Third fixing hole; 22. Second fixing bolt; 23. Rocker arm; 24. Connecting groove; 25. Connecting pin; 26. First locking hole; 27. Locking bolt; 28. Connecting seat; 29. ​​Movable cavity; 30. Movable seat; 31. First fixing hole; 32. Second fixing hole; 33. First fixing bolt; 34. Card seat; 35. Card protrusion; 36. Limiting interval; 37. Connecting slot; 38. Connecting block; 39. Second connecting hole; 40. First connecting hole; 41. Connecting bolt; 42. Buffer block; 43. Fixing slot; 44. Fixing block; 45. Second locking hole. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Reference Figures 1-7 In some specific embodiments, a rocker arm fixing device for an annealing furnace gate includes a conveyor frame 1, a conveyor belt 2 at the top of the conveyor frame 1, an annealing furnace body 3 at the top of the conveyor frame 1, the annealing furnace body 3 being located above the conveyor belt 2, a gate body 4 slidably connected to one side of the annealing furnace body 3, a traction steel cable 11 at the top of the gate body 4, a support plate 10 on one side of the annealing furnace body 3, a drum 16 rotatably connected to one side of the support plate 10, one end of the traction steel cable 11 wound around the outside of the drum 16, a rocker arm 23 on one side of the drum 16, and the support plate... A connecting seat 28 is provided on one side of the rocker arm 23. A movable cavity 29 is opened on one side of the connecting seat 28. A movable seat 30 is slidably connected inside the movable cavity 29. A locking seat 34 is provided on one side of the movable seat 30. The locking seat 34 is close to the rocker arm 23. Two locking protrusions 35 are provided on one side of the locking seat 34. The two locking protrusions 35 are separated to form a limiting interval 36, so that the rocker arm 23 is located within the limiting interval 36. A buffer block 42 is provided on one side of the two locking protrusions 35. The buffer block 42 is elastic. The two buffer blocks 42 are located inside the limiting interval 36, so that the two buffer blocks 42 are located on both sides of the rocker arm 23 respectively.

[0034] With the above technical solution, after the rocker arm 23 is adjusted, the movable seat 30 slides toward the rocker arm 23, and the locking seat 34 approaches the rocker arm 23. At this time, the rocker arm 23 is located within the limiting interval 36, and the two buffer blocks 42 are located on both sides of the rocker arm 23. When the vibration is transmitted to the rocker arm 23, when the rocker arm 23 collides with the two locking protrusions 35, the buffer block 42 takes the impact force in place of the locking protrusions 35. The elastic deformation of the buffer block 42 absorbs the impact energy, reduces the impact force transmitted to the rocker arm 23, and extends the service life of the locking protrusions 35.

[0035] It should be noted that when the vibrating motor swings the rocker arm 23, the rocker arm 23 will cause the drum 16 to move slightly, and the drum 16 will cause the gate body 4 to move slightly through the traction cable 11. The buffer block 42 can be closely attached to the rocker arm 23, thereby eliminating the gap between the rocker arm 23 and the locking protrusion 35. Thus, the buffer block 42 can not only absorb the impact force of the rocker arm 23, but also reduce the movement interval of the rocker arm 23, and improve the stability of the drum 16 when it is fixed.

[0036] Reference Figure 7 In some specific embodiments, a fixed slot 43 is provided on one side of the protrusion 35, and a fixed block 44 is provided on one side of the buffer block 42. The fixed block 44 is elastic and slightly larger than the fixed slot 43. The fixed block 44 engages with the fixed slot 43.

[0037] Through the above technical solution, the buffer block 42 is continuously compressed during impact. If the stress exceeds the elastic limit of the material, plastic deformation will occur, causing the shape of the buffer block 42 to change or its function to fail. At this time, the fixed card block 44 is disengaged from the fixed card slot 43, which facilitates the replacement of the buffer block 42 and maintains the protection of the card protrusion 35.

[0038] Reference Figure 7 In some specific embodiments, the card protrusion 35 has a first connecting hole 40 inside, and the card seat 34 has a second connecting hole 39 on one side. A connecting bolt 41 passes through the first connecting hole 40, and the connecting bolt 41 is threadedly engaged with the second connecting hole 39.

[0039] With the above technical solution, when the gap between the locking protrusion 35 and the rocker arm 23 is large, the second connecting hole 39 and the first connecting hole 40 are unscrewed through the connecting bolt 41, so as to replace the locking protrusion 35, so as to reduce the gap between the locking protrusion 35 and the rocker arm 23 by replacing the locking protrusion 35 with a different length.

[0040] Reference Figure 7 In some specific embodiments, a connection slot 37 is provided on one side of the card holder 34, and a connection plug 38 is provided on the other side of the card protrusion 35. The shape of the connection plug 38 matches that of the connection slot 37, and the connection plug 38 is inserted into the connection slot 37.

[0041] With the above technical solution, when the protrusion 35 is installed, the connecting plug 38 of the protrusion 35 is inserted into the connecting slot 37, thereby positioning the installation position of the protrusion 35. With the help of the insertion positioning, the first connecting hole 40 and the second connecting hole 39 are aligned, simplifying the insertion of the connecting bolt 41.

[0042] Reference Figure 7 In some specific embodiments, a first fixing hole 31 is provided on the other side of the connecting seat 28. The first fixing hole 31 is away from the support plate 10. The first fixing hole 31 is connected to the movable cavity 29. A second fixing hole 32 is provided inside the movable seat 30. A first fixing bolt 33 passes through the first fixing hole 31. The first fixing bolt 33 is threadedly engaged with the second fixing hole 32.

[0043] With the above technical solution, when the drum 16 needs to be fixed, the movable seat 30 slides toward the rocker arm 23, the clamping seat 34 approaches the rocker arm 23, and the first fixing bolt 33 passes through the first fixing hole 31, so that the first fixing bolt 33 is threadedly engaged with the second fixing hole 32, thereby facilitating the fixing of the position of the clamping seat 34 and keeping the rocker arm 23 within the limit interval 36.

[0044] Reference Figures 5-6 In some specific embodiments, a connecting groove 24 is provided on one side of the drum 16, and a connecting post 25 is provided on one side of the rocker arm 23. The cross-section of the connecting post 25 is pentagonal. The shape of the connecting groove 24 matches that of the connecting post 25. The connecting post 25 is inserted into the connecting groove 24. A first locking hole 26 is provided inside the rocker arm 23, and a second locking hole 45 is provided inside the connecting groove 24. A locking bolt 27 is inserted into the first locking hole 26, and the locking bolt 27 is threaded into the second locking hole 45.

[0045] With the above technical solution, when the rocker arm 23 needs to be replaced, the connecting pin 25 of the new rocker arm 23 is inserted into the connecting groove 24. Since the cross-section of the connecting pin 25 is pentagonal, and the shape of the connecting groove 24 matches that of the connecting pin 25, the pentagonal insertion design effectively prevents the relative rotation of the rocker arm 23 and the drum 16, ensuring the stability of torque transmission. The locking bolt 27 passes through the first locking hole 26 and is threaded into the second locking hole 45, so that the connecting pin 25 is kept inside the connecting groove 24.

[0046] Reference Figures 1-5 In some specific embodiments, a first limiting annular groove 17 is provided on the outer edge of the drum 16, and one end of the traction steel cable 11 is wound around the inside of the first limiting annular groove 17. A first tensioning roller 12 is rotatably connected to one side of the annealing furnace body 3. A second limiting annular groove 13 is provided on the outer edge of the first tensioning roller 12. A section of the traction steel cable 11 rolls with the first tensioning roller 12, so that a section of the traction steel cable 11 is located inside the second limiting annular groove 13. A second tensioning roller 14 is rotatably connected to one side of the support plate 10. A third limiting annular groove 15 is provided on the outer edge of the second tensioning roller 14. A section of the traction steel cable 11 rolls with the second tensioning roller 14, so that a section of the traction steel cable 11 is located inside the third limiting annular groove 15.

[0047] With the above technical solution, when the drum 16 drives the traction cable 11 to wind, since the traction cable 11 is located in the first limiting ring groove 17, the first limiting ring groove 17 ensures that the position of the traction cable 11 on the drum 16 is fixed, avoiding slippage or misalignment. A section of the traction cable 11 is located in the second limiting ring groove 13 and the third limiting ring groove 15, so that when the traction cable 11 moves, the second limiting ring groove 13 ensures that the traction cable 11 maintains rolling engagement with the first tensioning roller 12, and the third limiting ring groove 15 ensures that the traction cable 11 maintains rolling engagement with the second tensioning roller 14. The first tensioning roller 12 and the second tensioning roller 14 ensure that the traction cable 11 maintains appropriate tension during operation, avoiding slackness or excessive tightness.

[0048] Reference Figure 4 In some specific embodiments, a fixing ring 20 is provided on the top of the gate body 4. A connecting hook 19 is hooked inside the fixing ring 20. One end of the connecting hook 19 is provided with an installation cylinder 18. The other end of the traction steel cable 11 passes through the interior of the installation cylinder 18. A third fixing hole 21 is opened on one side of the installation cylinder 18. A second fixing bolt 22 is threaded into the third fixing hole 21. The second fixing bolt 22 abuts against the other end of the traction steel cable 11.

[0049] With the above technical solution, when the traction cable 11 is connected to the gate body 4, the connecting hook 19 of the traction cable 11 hooks with the fixing ring 20, and the hooking structure is simple and easy to install and disassemble; the second fixing bolt 22 abuts against the traction cable 11 to fix the traction cable 11 to the mounting cylinder 18; the thread of the second fixing bolt 22 forms a mechanical lock with the internal thread of the mounting cylinder 18, providing axial tension and radial friction to ensure a stable connection between the traction cable 11 and the mounting cylinder 18.

[0050] In addition, a fixing plate can be provided at one end of the second fixing bolt 22. The contact area between the fixing plate and the traction cable 11 is increased, so that when the fixing plate comes into contact with the traction cable 11, the fixing plate has a larger contact area with the traction cable 11, which avoids the traction cable 11 from breaking due to the small contact area between the second fixing bolt 22 and the traction cable 11.

[0051] Reference Figures 2-3 In some specific embodiments, an installation groove 8 is provided at one end of the gate body 4, and an insulation board 9 is provided inside the installation groove 8. The insulation board 9 is made of insulation material and is close to the outlet of the annealing furnace body 3.

[0052] With the above technical solution, when the gate body 4 gradually closes the outlet of the annealing furnace body 3, since the mounting groove 8 is located on the side of the gate body 4 near the annealing furnace outlet, it ensures that the insulation plate 9 can cover the high-temperature area, minimizing the transfer of heat to the external environment.

[0053] In addition, the insulation board 9 uses high-efficiency insulation materials, such as ceramic fiber, aluminum silicate or rock wool.

[0054] Reference Figures 1-3 In some specific embodiments, two guide frames 5 are provided on one side of the annealing furnace body 3, and a guide groove 6 is provided on one side of the guide frame 5. The gate body 4 is located between the two guide frames 5, and guide sliders 7 are provided on both sides of the gate body 4. The guide sliders 7 on both sides of the gate body 4 slide and cooperate with the guide grooves 6 of the two guide frames 5 respectively.

[0055] Through the above technical solution, the guide sliders 7 on both sides of the gate body 4 slide in cooperation with the guide grooves 6 of the guide frame 5, and realize the lifting and lowering movement of the gate body 4 through sliding friction, and guide the lifting and lowering position of the gate body 4 to prevent the gate body 4 from deviating from the moving position.

[0056] 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 process, method, article, or apparatus.

Claims

1. A rocker arm fixing device for an annealing furnace gate, comprising a conveyor frame, a conveyor belt at the top of the conveyor frame, an annealing furnace body at the top of the conveyor frame, the annealing furnace body being located above the conveyor belt, a gate body slidably connected to one side of the annealing furnace body, a traction cable at the top of the gate body, a support plate on one side of the annealing furnace body, a drum rotatably connected to one side of the support plate, one end of the traction cable wound around the outside of the drum, and a rocker arm on one side of the drum, characterized in that... A connecting seat is provided on one side of the support plate, and a movable cavity is opened on one side of the connecting seat. A movable seat is slidably connected inside the movable cavity. A locking seat is provided on one side of the movable seat. The locking seat is close to the rocker arm. Two locking protrusions are provided on one side of the locking seat. The two locking protrusions are separated to form a limiting interval, so that the rocker arm is located within the limiting interval. A buffer block is provided on one side of the two locking protrusions. The buffer block is elastic. The two buffer blocks are located inside the limiting interval, so that the two buffer blocks are respectively located on both sides of the rocker arm.

2. The rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, A fixed slot is provided on one side of the card protrusion, and a fixed block is provided on one side of the buffer block. The fixed block is elastic and slightly larger than the fixed slot. The fixed block engages with the fixed slot.

3. The rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, The card protrusion has a first connecting hole inside, and the card seat has a second connecting hole on one side. A connecting bolt passes through the first connecting hole, and the connecting bolt is threaded into the second connecting hole.

4. The rocker arm fixing device for an annealing furnace gate according to claim 3, characterized in that, A connection slot is provided on one side of the card holder, and a connection plug is provided on the other side of the card protrusion. The shape of the connection plug matches that of the connection slot, and the connection plug is inserted into the connection slot.

5. A rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, A first fixing hole is provided on the other side of the connecting seat. The first fixing hole is away from the support plate and is connected to the movable cavity. A second fixing hole is provided inside the movable seat. A first fixing bolt is inserted into the first fixing hole and is threaded into the second fixing hole.

6. A rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, A connecting groove is provided on one side of the drum, and a connecting post is provided on one side of the rocker arm. The connecting post has a pentagonal cross-section. The shape of the connecting groove matches that of the connecting post. The connecting post is inserted into the connecting groove. A first locking hole is provided inside the rocker arm, and a second locking hole is provided inside the connecting groove. A locking bolt is inserted into the first locking hole, and the locking bolt is threaded into the second locking hole.

7. A rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, The outer edge of the drum is provided with a first limiting annular groove. One end of the traction steel cable is wound inside the first limiting annular groove. A first tensioning roller is rotatably connected to one side of the annealing furnace body. A second limiting annular groove is provided on the outer edge of the first tensioning roller. A section of the traction steel cable rolls with the first tensioning roller, so that a section of the traction steel cable is located inside the second limiting annular groove. A second tensioning roller is rotatably connected to one side of the support plate. A third limiting annular groove is provided on the outer edge of the second tensioning roller. A section of the traction steel cable rolls with the second tensioning roller, so that a section of the traction steel cable is located inside the third limiting annular groove.

8. A rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, The top of the gate body is provided with a fixing ring, and a connecting hook is hooked inside the fixing ring. One end of the connecting hook is provided with an installation cylinder, and the other end of the traction steel cable passes through the interior of the installation cylinder. A third fixing hole is opened on one side of the installation cylinder, and a second fixing bolt is threaded into the third fixing hole. The second fixing bolt abuts against the other end of the traction steel cable.

9. A rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, An installation groove is provided at one end of the gate body, and an insulation board is provided inside the installation groove. The insulation board is made of insulation material and is located near the outlet of the annealing furnace body.

10. A rocker arm fixing device for an annealing furnace gate according to claim 1, characterized in that, Two guide frames are provided on one side of the annealing furnace body, and a guide groove is provided on one side of the guide frame. The gate body is located between the two guide frames, and guide sliders are provided on both sides of the gate body. The guide sliders on both sides of the gate body slide and cooperate with the guide grooves of the two guide frames respectively.