Heating furnace with pipeline capable of being rapidly cooled

Abstract

The invention discloses a heating furnace with a pipeline capable of being rapidly cooled, and relates to the technical field of heating furnaces, the heating furnace comprises a heating furnace body, an air outlet pipe, an air inlet pipe and a heating rod, a control panel is installed on one side of the heating furnace body, a heating chamber is arranged in the heating furnace body, and one side of the heating chamber is connected with an inner furnace door. When the heating furnace with the pipeline capable of being rapidly cooled is used, an air outlet pipe can be moved into a fixing frame and limited through a clamping block, then a driving motor is started, the driving motor can drive a chain to move through a chain wheel, and the chain can drive a connecting block on one side to do up-down reciprocating motion when moving; and meanwhile, the connecting block can drive the first sliding block to slide along the fixing frame, the first sliding block slides to be matched with the second sliding block to drive the fan to reciprocate up and down, the air outlet pipe can be uniformly cooled through the fan at the moment, and the situation that the air outlet pipe is in a high-temperature state for a long time and is damaged is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of heating furnaces, in particular to a heating furnace with pipelines capable of rapidly cooling down. Background Art

[0002] A heating furnace is a device that heats materials or workpieces to the rolling or forging temperature. Due to its good heating effect and convenient operation, it is widely used in many industries such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals.

[0003] When in use, an existing heating furnace is equipped with a set of exhaust pipes to discharge the high-temperature gas inside the heating chamber. Since the exhaust pipes need to discharge heat, the temperature on the surface of the exhaust pipes will be very high. This causes the exhaust pipes to be easily damaged due to high temperature after long-term use, and thus the exhaust pipes have no effect of cooling down the temperature. Summary of the invention

[0004] The purpose of the present invention is to provide a heating furnace with a pipe that can quickly cool down, so as to solve the problem that the outlet pipe of the heating furnace currently used is easily damaged due to the very high internal temperature, and therefore the outlet pipe cannot be quickly cooled.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heating furnace with a pipeline capable of rapid temperature reduction, comprising: a heating furnace body, an air outlet pipe, an air inlet pipe and a heating rod, a control panel is installed on one side of the heating furnace body, a heating chamber is arranged inside the heating furnace body, an inner furnace door is connected to one side of the heating chamber, an outer furnace door is arranged on the outer side of the inner furnace door, the air outlet pipe and the air inlet pipe are both installed on the back side of the heating furnace body, and a heating rod is installed on the inner wall of the heating chamber;

[0006] A fixing frame is provided on the outside of the air outlet pipe, a movable spring is installed inside the fixing frame through a groove, one side of the movable spring is connected to a block penetrating the fixing frame, one side of the fixing frame is respectively connected to a first slider and a second slider through a slide groove, one side of the first slider is connected to a connecting block through a slide groove, a chain is installed on one side of the connecting block, both ends of the chain are connected to a sprocket, the output end of the sprocket is connected to a driving motor through a coupling, one side of the first slider is connected to a fan through a rotating shaft, and a threaded pin is connected between the side of the fan away from the first slider and the second slider.

[0007] Preferably, a rotating shaft is connected between one side of the inner furnace door and the groove of the heating chamber, and a driving belt is connected to the top of the rotating shaft via a pulley.

[0008] Preferably, one end of the transmission belt away from the rotating shaft is connected to a screw rod via a pulley, and a threaded sleeve is sleeved on the outer side of the screw rod.

[0009] Preferably, the inner furnace door forms a rotating structure with the heating chamber through a rotating shaft, and both ends of the rotating shaft and both ends of the screw rod are connected to the groove of the heating chamber through bearings.

[0010] Preferably, one side of the screw sleeve is connected to a connecting rod, and the side of the connecting rod away from the screw sleeve is connected to a heating plate.

[0011] Preferably, a guide rod is installed on the top of the heating plate, and a telescopic structure is formed between the guide rod and the groove on the top of the heating chamber.

[0012] Preferably, a transmission motor is installed at the bottom of the heating chamber through a groove, and an output end of the transmission motor is connected to a bidirectional screw through a coupling.

[0013] Preferably, both ends of the bidirectional screw are sleeved with threaded sleeves.

[0014] Preferably, both sides of the threaded sleeve are connected to connecting rods via a rotating shaft, and one end of the connecting rod away from the threaded sleeve is connected to a rotating block via a rotating shaft.

[0015] Preferably, a movable block is installed on the top of the rotating block, and one end of the rotating block is connected to the groove of the heating chamber through a rotating shaft.

[0016] Compared with the prior art, the beneficial effect of the present invention is that when the heating furnace with a pipeline that can quickly cool down is in use, the outlet pipe can be moved to the fixed frame, and the outlet pipe is limited by a block, and then the driving motor is started, and the driving motor will drive the chain to move through the sprocket. When the chain moves, it will drive the connecting block on one side to move up and down reciprocatingly. At the same time, the connecting block will drive the first slider to slide along the fixed frame. The sliding of the first slider will cooperate with the second slider to drive the fan to move up and down reciprocatingly. At this time, the outlet pipe can be evenly cooled by the fan to avoid the outlet pipe being in a high temperature state for a long time and being damaged. This is the use feature of the heating furnace with a pipeline that can quickly cool down.

[0017] 1. The heating furnace with rapid cooling of the pipeline can clamp the outlet pipe in the fixing frame through the clamping block, and then fix the fan on one side connected to the second slider through the threaded clamping pin. At this time, the chain can be driven by the driving motor and the sprocket to move, and the chain movement will cooperate with the connecting block to drive the first slider to reciprocate, so that the first slider drives the fan to reciprocate up and down, and at the same time, the other side of the fan will slide up and down through the second slider. The up and down sliding of the fan can evenly cool the outlet pipe, which is convenient for the outlet pipe to quickly discharge the internal heat and avoid the outlet pipe being damaged by high temperature;

[0018] 2. The heating furnace with rapid cooling of the pipeline can place the materials in the heating chamber, and then close the inner furnace door, so that the inner furnace door drives the transmission belt to rotate through the rotating shaft and the pulley. The rotation of the transmission belt will drive the screw to rotate through the pulley. When the screw rotates, it will cooperate with the screw sleeve and the connecting rod to drive the heating plate to move downward, so that the heating plate moves to the inside of the heating chamber. The temperature inside the heating chamber can be quickly increased through the heating plate and the heating rods on the three sides inside the heating chamber, so that the heating effect inside the heating chamber is better;

[0019] 3. The pipeline can quickly cool down the heating furnace. After placing the material inside the heating chamber, the transmission motor can be started to drive the bidirectional screw to rotate, and at the same time drive the two sets of threaded sleeves to slide in opposite directions. The sliding of the threaded sleeve will drive the rotating block to rotate through the rotating shaft and the connecting rod. The rotation of the rotating block will synchronously drive the movable block on the top to rotate. The rotation of the four sets of movable blocks can push the material to the middle of the heating chamber, so that the material can be heated evenly, making the heating effect of the material better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the outer furnace door opening of the present invention;

[0023] Figure 4 It is a schematic diagram of the top view of the rotating block of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal cross-section structure of the heating chamber of the present invention;

[0025] Figure 6 It is a schematic diagram of the top view of the cross-section structure of the heating chamber of the present invention;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the fan of the present invention from a first viewing angle;

[0027] Figure 8 A schematic diagram of the three-dimensional structure of the fan of the present invention from a second viewing angle;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the heating plate of the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the heating chamber of the present invention;

[0030] Fig.11It is a schematic diagram of the three-dimensional structure of the rotating block of the present invention.

[0031] In the figure: 1. heating furnace body; 2. control panel; 3. heating chamber; 4. inner furnace door; 5. outer furnace door; 6. exhaust pipe; 7. inlet pipe; 8. fixing frame; 9. movable spring; 10. clamping block; 11. first slider; 12. second slider; 13. connecting block; 14. chain; 15. sprocket; 16. driving motor; 17. fan; 18. threaded bayonet; 19. rotating shaft; 20. driving belt; 21. screw rod; 22. screw sleeve; 23. connecting rod; 24. heating plate; 25. guide rod; 26. driving motor; 27. bidirectional screw; 28. threaded sleeve; 29. ​​connecting rod; 30. rotating block; 31. movable block; 32. heating rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 , Figure 2 and Figure 3 The present invention provides a technical solution: a heating furnace with a pipeline capable of rapid temperature reduction, comprising: a heating furnace body 1, an air outlet pipe 6, an air inlet pipe 7 and a heating rod 32, a control panel 2 is installed on one side of the heating furnace body 1, a heating chamber 3 is arranged inside the heating furnace body 1, an inner furnace door 4 is connected to one side of the heating chamber 3, an outer furnace door 5 is arranged on the outer side of the inner furnace door 4, the air outlet pipe 6 and the air inlet pipe 7 are both installed on the back of the heating furnace body 1, and a heating rod 32 is installed on the inner wall of the heating chamber 3;

[0034] A fixing frame 8 is arranged on the outside of the air outlet pipe 6, and a movable spring 9 is installed inside the fixing frame 8 through a groove, and a block 10 that passes through the fixing frame 8 is connected to one side of the movable spring 9, and a first slider 11 and a second slider 12 are respectively connected to one side of the fixing frame 8 through a slide groove, and a connecting block 13 is connected to one side of the first slider 11 through a slide groove, and a chain 14 is installed on one side of the connecting block 13, and sprockets 15 are connected to both ends of the chain 14, and an output end of the sprocket 15 is connected to a driving motor 16 through a coupling, and a fan 17 is connected to one side of the first slider 11 through a rotating shaft, and a threaded pin 18 is connected between the side of the fan 17 away from the first slider 11 and the second slider 12, and the fan 17 forms a sliding structure through the first slider 11, the second slider 12 and the fixing frame 8, and the fixing frame 8 is installed on the back side of the heating furnace body 1.

[0035] In a specific implementation, the heating furnace with a pipeline capable of rapid temperature reduction can rotate the threaded pin 18 when the outlet pipe 6 needs to be cooled. Since there is a thread between the threaded pin 18 and the fan 17, and the threaded pin 18 passes through the fan 17 and is inserted into the through hole of the second slider 12, the threaded pin 18 is rotated upward at this time, so that one side of the fan 17 can be separated from the second slider 12, and then the fan 17 can be rotated along the first slider 11 through the rotating shaft, and the outlet pipe 6 can be cooled without the obstruction of the fan 17. The air pipe 6 is docked into the groove of the fixing frame 8, and the air outlet pipe 6 squeezes the block 10 in the groove of the fixing frame 8, so that the block 10 shrinks into the groove of the fixing frame 8 and squeezes the movable spring 9 in the groove. When the air outlet pipe 6 is completely docked into the groove of the fixing frame 8, the air outlet pipe 6 does not squeeze the block 10, and then the block 10 moves out of the groove of the fixing frame 8 through the resetting action of the movable spring 9, and the air outlet pipe 6 can be limited in the groove of the fixing frame 8 through the block 10;

[0036] Then, the fan 17 is rotated so that the fan 17 rotates through the rotating shaft between the fan 17 and the first slider 11, and one end of the fan 17 is docked with the second slider 12, and the threaded bayonet 18 is rotated in the opposite direction to connect one end of the fan 17 with the second slider 12. At this time, the drive motor 16 is started again, and the drive motor 16 drives the sprocket 15 to rotate through the coupling. Since the sprocket 15 and the chain 14 are connected to each other, when the sprocket 15 rotates, it will drive the chain 14 to rotate. A connecting block 13 is installed on one side of the chain 14, and the connecting block 13 is slidably connected to one side of the first slider 11 through a slide groove;

[0037] Since the chain 14 is always in motion, when the chain 14 drives the connecting block 13 to move to the left, the connecting block 13 drives the first slider 11 to slide upward, and at the same time, the first slider 11 slides along the slide groove of the fixing frame 8. The sliding of the first slider 11 drives the fan 17 to move upward. At the same time, the fan 17 drives the second slider 12 to slide through the threaded latch 18, so that the second slider 12 also slides along the fixing frame 8. With the cooperation of the first slider 11 and the second slider 12, the fan 17 can move upward stably.

[0038] When the chain 14 drives the connecting block 13 to move to the right side, the connecting block 13 will slide to the right side through the slide groove on the side of the first slider 11, and at the same time drive the first slider 11 to move downward, and drive the fan 17 to move downward under the cooperation of the first slider 11 and the second slider 12. At this time, the air outlet pipe 6 can be evenly cooled by the continuous up and down movement of the fan 17, and the heat generated by the air outlet pipe 6 will be discharged from the fixing frame 8 through the heat dissipation holes on the side of the fixing frame 8, so that the cooling effect of the pipeline is better, and the pipeline can be prevented from being damaged due to high temperature.

[0039] See also Figure 2 , Figure 6 , Figure 7 and Figure 8 It can be seen that when in use, the air outlet pipe 6 can be quickly connected to the groove of the fixing frame 8 according to the use requirements, and then the fan 17 can be installed on one side of the fixing frame 8. At the same time, with the cooperation of the chain 14 and the connecting block 13, the first slider 11 and the second slider 12 drive the fan 17 to move up and down, so as to achieve the effect of uniform heat dissipation for the pipeline and avoid the pipeline being damaged due to being in a high temperature state for a long time.

[0040] A rotating shaft 19 is connected between one side of the inner furnace door 4 and the groove of the heating chamber 3, and a transmission belt 20 is connected to the top of the rotating shaft 19 through a pulley, and the end of the transmission belt 20 away from the rotating shaft 19 is connected to a screw rod 21 through a pulley, and a screw sleeve 22 is sleeved on the outer side of the screw rod 21. The inner furnace door 4 forms a rotating structure between the rotating shaft 19 and the heating chamber 3, and both ends of the rotating shaft 19 and both ends of the screw rod 21 are connected to the groove of the heating chamber 3 through bearings, a connecting rod 23 is connected to one side of the screw sleeve 22, and a heating plate 24 is connected to the side of the connecting rod 23 away from the screw sleeve 22, and a guide rod 25 is installed on the top of the heating plate 24, and a telescopic structure is formed between the guide rod 25 and the groove at the top of the heating chamber 3, and a heating rod 32 is also installed on the inner side of the guide rod 25.

[0041] In specific implementation, the pipeline can quickly cool down the heating furnace. When it is necessary to heat the materials inside the heating furnace body 1 in multiple directions, it is only necessary to rotate the inner furnace door 4 and close it on one side of the heating chamber 3. The inner furnace door 4 will drive the rotating shaft 19 to rotate. At the same time, the top of the rotating shaft 19 is connected to a transmission belt 20 through a pulley, and the other end of the transmission belt 20 is connected to the top of the screw rod 21 through a pulley. Therefore, when the rotating shaft 19 rotates, the screw rod 21 will be driven to rotate through the transmission belt 20 and the pulley. A screw sleeve 22 is sleeved on the outer side of the screw rod 21, and a connecting rod 23 is connected to a groove that passes through the heating chamber 3 on one side of the screw sleeve 22, and the connecting rod 23 is connected to the heating plate 24. The screw sleeve 22 is driven by the connecting rod 23. The guiding effect will cause the screw rod 21 to drive the screw sleeve 22 to slide downward when rotating. The screw sleeve 22 will drive the heating plate 24 to slide downward through the connecting rod 23, so that the heating plate 24 moves out of the groove at the top of the heating chamber 3, and the heating plate 24 will slide along the groove at the top of the heating chamber 3 through the guide rod 25 during the downward movement, so that the heating plate 24 is more stable during the movement. At the same time, a heating rod 32 is installed on the inner side of the heating plate 24, and a heating rod 32 is also installed on the inner wall of the heating chamber 3. At this time, when the heating plate 24 moves into the interior of the heating chamber 3, the surrounding areas of the material can be heated synchronously, so that the internal heating effect of the heating chamber 3 is better, and the material can be heated quickly and conveniently.

[0042] After the heating is completed, the inner furnace door 4 can be opened, and then the inner furnace door 4 can drive the rotating shaft 19 to rotate in the opposite direction. The reverse rotation of the rotating shaft 19 will drive the screw rod 21 to rotate through the pulley and the transmission belt 20, so that the screw sleeve 22 drives the heating plate 24 to retract upward into the groove at the top of the heating chamber 3 through the connecting rod 23. At this time, the heating plate 24 will not affect the user's taking of the material inside the heating chamber 3.

[0043] See also Figure 5 , Fig. 9 and Fig.10 It can be seen that when in use, the rotating shaft 19 can be driven to rotate by closing the inner furnace door 4. The rotation of the rotating shaft 19 can drive the screw rod 21 to rotate through the pulley and the transmission belt 20. The rotation of the screw rod 21 will drive the heating plate 24 to move downward through the screw sleeve 22 and the connecting rod 23, so that the heating plate 24 moves to the inside of the heating chamber 3. The heating rods 32 on the inner side of the heating plate 24 and the heating rods 32 on the three sides of the heating chamber 3 can quickly heat the material inside the heating chamber 3, so that the heating effect inside the heating chamber 3 is better.

[0044] A transmission motor 26 is installed at the bottom of the heating chamber 3 through a groove, and the output end of the transmission motor 26 is connected to a bidirectional screw 27 through a coupling. Both ends of the bidirectional screw 27 are sleeved with threaded sleeves 28, and both sides of the threaded sleeve 28 are connected to connecting rods 29 through a rotating shaft. The end of the connecting rod 29 away from the threaded sleeve 28 is connected to a rotating block 30 through a rotating shaft. A movable block 31 is installed on the top of the rotating block 30, and one end of the rotating block 30 is connected to the groove of the heating chamber 3 through a rotating shaft. The rotating block 30 forms a rotating structure between the rotating shaft and the groove at the bottom of the heating chamber 3.

[0045] In specific implementation, the heating furnace with rapid cooling of the pipeline can be used. When in use, the material to be heated can be placed inside the heating chamber 3, and then the transmission motor 26 is started. The transmission motor 26 will drive the bidirectional screw 27 to rotate through the coupling. Two sets of threaded sleeves 28 are sleeved on the outer side of the bidirectional screw 27. Since the threads at both ends of the bidirectional screw 27 are in opposite directions, the bidirectional screw 27 will drive the two sets of threaded sleeves 28 to slide in opposite directions when rotating. Connecting rods 29 are connected at both ends of the threaded sleeves 28 through a rotating shaft, and the other end of the connecting rod 29 is connected to the rotating shaft. On one side of the rotating block 30, when the screw sleeve 22 slides, the rotating block 30 will be pulled to rotate through the rotating shaft and the connecting rod 29, so that the rotating block 30 rotates through the rotating shaft at one end. At the same time, since the two groups of threaded sleeves 28 slide in opposite directions, the four groups of rotating blocks 30 can rotate toward the middle relative to each other. The rotating block 30 will synchronously drive the movable block 31 on the top to rotate when rotating. When the rotating block 30 rotates, it will push the material inside the heating chamber 3 to the middle, so that the material can be placed in the center of the heating chamber 3, so that the material can be evenly heated.

[0046] See also Figure 4 , Fig.10 and Fig.11 It can be seen that when in use, the material to be heated can be placed in the heating chamber 3 according to the use requirements, and then the transmission motor 26 is started, so that the transmission motor 26 drives the connecting rod 29 to rotate through the bidirectional screw 27 and the threaded sleeve 28. The rotation of the connecting rod 29 will pull the rotating block 30 to rotate, and at the same time drive the movable block 31 to rotate. Through the movable block 31, the material inside the heating chamber 3 can be pushed to the middle, so that the material can be better heated.

[0047] To sum up, when the heating furnace with rapid cooling of the pipeline is in use, the heating furnace body 1 can be placed in a stable position, and then the outer furnace door 5 is opened by the hinge. After the outer furnace door 5 is opened, the inner furnace door 4 on one side of the heating chamber 3 is opened. At this time, the material to be heated can be placed in the heating chamber 3, and then the inner furnace door 4 and the outer furnace door 5 are closed in turn. Then, the parameters of the heating furnace body 1 are adjusted through the control panel 2 and the heating furnace body 1 is started. The material inside the heating chamber 3 can be heated by the heating rod 32 inside the heating chamber 3. At the same time, gas exchange can be carried out through the air outlet pipe 6 and the air inlet pipe 7 on the back of the heating furnace body 1, so that the heating furnace body 1 can work normally. This is the use feature of the heating furnace with rapid cooling of the pipeline. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating furnace with a pipeline capable of rapid cooling, comprising: A heating furnace body (1), an air outlet pipe (6), an air inlet pipe (7) and a heating rod (32), characterized in that: a control panel (2) is installed on one side of the heating furnace body (1), a heating chamber (3) is arranged inside the heating furnace body (1), an inner furnace door (4) is connected to one side of the heating chamber (3), an outer furnace door (5) is arranged on the outer side of the inner furnace door (4), the air outlet pipe (6) and the air inlet pipe (7) are both installed on the back side of the heating furnace body (1), and a heating rod (32) is installed on the inner wall of the heating chamber (3); A fixing frame (8) is arranged on the outside of the air outlet pipe (6), a movable spring (9) is installed inside the fixing frame (8) through a groove, one side of the movable spring (9) is connected to a clamping block (10) penetrating the fixing frame (8), one side of the fixing frame (8) is respectively connected to a first slider (11) and a second slider (12) through a slide groove, one side of the first slider (11) is connected to a connecting block (13) through a slide groove, one side of the connecting block (13) is installed with a chain (14), both ends of the chain (14) are connected to a sprocket (15), the output end of the sprocket (15) is connected to a driving motor (16) through a coupling, one side of the first slider (11) is connected to a fan (17) through a rotating shaft, and a threaded clamping pin (18) is connected between the side of the fan (17) away from the first slider (11) and the second slider (12).

2. A heating furnace with rapid pipe cooling according to claim 1, characterized in that: A rotating shaft (19) is connected between one side of the inner furnace door (4) and the groove of the heating chamber (3), and a driving belt (20) is connected to the top of the rotating shaft (19) via a pulley.

3. A heating furnace with rapid pipe temperature reduction according to claim 2, characterized in that: One end of the transmission belt (20) away from the rotating shaft (19) is connected to a screw rod (21) via a pulley, and a threaded sleeve (22) is sleeved on the outer side of the screw rod (21).

4. The heating furnace with rapid pipe cooling according to claim 1, characterized in that: The inner furnace door (4) forms a rotating structure with the heating chamber (3) via a rotating shaft (19), and both ends of the rotating shaft (19) and both ends of the screw rod (21) are connected to the groove of the heating chamber (3) via bearings.

5. The heating furnace with rapid pipe cooling according to claim 3, characterized in that: One side of the screw sleeve (22) is connected to a connecting rod (23), and the side of the connecting rod (23) away from the screw sleeve (22) is connected to a heating plate (24).

6. A heating furnace with rapid pipe temperature reduction according to claim 5, characterized in that: A guide rod (25) is installed on the top of the heating plate (24), and a telescopic structure is formed between the guide rod (25) and the groove on the top of the heating chamber (3).

7. The heating furnace with rapid pipe cooling according to claim 1, characterized in that: A transmission motor (26) is installed at the bottom of the heating chamber (3) via a groove, and an output end of the transmission motor (26) is connected to a bidirectional screw (27) via a coupling.

8. A heating furnace with rapid pipe temperature reduction according to claim 7, characterized in that: Both ends of the bidirectional screw (27) are sleeved with threaded sleeves (28).

9. A heating furnace with rapid pipe temperature reduction according to claim 8, characterized in that: Both sides of the threaded sleeve (28) are connected to connecting rods (29) via rotating shafts, and one end of the connecting rod (29) away from the threaded sleeve (28) is connected to a rotating block (30) via a rotating shaft.

10. A heating furnace with rapid pipe temperature reduction according to claim 9, characterized in that: A movable block (31) is installed on the top of the rotating block (30), and one end of the rotating block (30) is connected to a groove of the heating chamber (3) via a rotating shaft.

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