A copper tube heater dismounting tool

Abstract

The application discloses a copper pipe heater dismounting tool in the technical field of copper pipe heaters, which comprises a fixing rod, sliding pins are connected to the bottom of the fixing rod, first springs for resetting the sliding pins are sleeved on the sliding pins, a threaded taper sleeve is spirally sleeved on the fixing rod, a cup head screw is spirally connected to the top of the fixing rod, and an impact sleeve is slidably sleeved on the cup head screw. The fixing rod is lowered and connected to the drawing hole through the sliding pin, the fixing bolt connecting the copper pipe heating assembly and the heating nozzle is automatically taken out from the copper pipe heating assembly, the time for taking out the fixing bolt is effectively saved, the precision of the connection between the sliding pin and the drawing hole is ensured through the connection between the plug and the slot, and the sliding pin can be connected to the drawing hole only by being vertically lowered.

Description

Technical Field

[0001] This invention relates to the field of copper tube heater technology, specifically a small tool for disassembling copper tube heaters. Background Technology

[0002] Copper tube heaters use copper tubes as the outer shell, with spiral heating alloy wires (nickel-chromium or iron-chromium alloy) evenly distributed along the central axis inside the tube. The gaps are filled with compacted magnesium oxide sand, which has good insulation and thermal conductivity. The two ends of the tube are sealed with silicone or ceramic. This metal-clad heating element can heat air, metal molds, and various liquids.

[0003] Copper tube heaters need to be fitted onto the outside of the heating nozzle for use. Currently, during the maintenance and replacement of the heating nozzle, the copper tube heater may deform or glue may seep from the nozzle into the inner wall of the copper tube heater, making it difficult to remove the heater. If external force is used to forcibly remove the heater from the heating nozzle, it may cause irreversible damage to the heater or the heating nozzle. Since copper tube heaters are expensive, a small tool for disassembling copper tube heaters needs to be designed.

[0004] Based on this, the present invention designs a small tool for disassembling copper tube heaters to solve the problem of the above-mentioned copper tube heaters being deformed or the nozzle leaking glue into the inner wall of the copper tube heater, making the heater difficult to pull out. Summary of the Invention

[0005] The purpose of this invention is to provide a small tool for disassembling copper tube heaters to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a small tool for disassembling a copper tube heater, comprising a fixing rod, wherein sliding pins are slidably connected to both ends of the bottom of the fixing rod, and a first spring for resetting is sleeved on each sliding pin; a threaded conical shovel sleeve is helically sleeved on the fixing rod; a cup-head screw is helically connected to the top of the fixing rod, and an impact sleeve is slidably sleeved on the cup-head screw; and an alignment and separation component is provided at the bottom of the fixing rod, the alignment and separation component being used to mate and separate the sliding pins from the heater.

[0007] As a further embodiment of the present invention, the alignment separation assembly includes a first connecting ring disposed below a fixed rod. A connecting block for fixed connection with the fixed rod is fixedly connected to the top of the first connecting ring. A first rotating rod is rotatably connected to the bottom of the first connecting ring. A second rotating rod is rotatably connected to the bottom of the first rotating rod. A second connecting ring is disposed below the second rotating rod. A fixed frame is fixedly connected to one side of the second connecting ring. A connecting shaft is rotatably connected to the top of the fixed frame. The bottom of the second rotating rod is fixedly sleeved outside the connecting shaft. A fixed frame is fixedly connected inside the fixed frame. The device has a fixed shaft, on which a sliding plate is slidably connected. A second spring for resetting the sliding plate is sleeved on the fixed shaft. A transmission wheel is rotatably connected to the sliding plate and slidably sleeved outside the connecting shaft. A transmission sleeve is rotatably connected to the top of the sliding plate. The transmission sleeve and the transmission wheel are connected together by a hinge. A threaded sleeve is slidably connected inside the transmission sleeve. A slot is formed on the threaded sleeve. A locking block for engaging with the slot is fixedly connected to the inner wall of the transmission sleeve. The threaded sleeve is helically connected to the sliding plate. A hexagonal wrench is slidably connected to one end of the threaded sleeve.

[0008] As a further embodiment of the present invention, a hot nozzle is provided at the bottom of the second connecting ring, and a slot is provided on one side of the hot nozzle. A plug for docking with the slot is fixedly connected to the bottom end of the second connecting ring. A copper tube heating assembly is sleeved on the top of the hot nozzle. Pull-out holes for docking with sliding pins are provided on both sides of the copper tube heating assembly. A fixing bolt is provided on the copper tube heating assembly. The fixing bolt passes through the copper tube heating assembly and is spirally connected to the hot nozzle.

[0009] As a further embodiment of the present invention, a rotating seat is fixedly connected to the bottom side wall of the first rotating rod, and a limiting plate is rotatably connected to the rotating seat. A protrusion is fixedly connected to one side of the top of the second rotating rod, and a groove that can mate with the protrusion is provided at the bottom of the limiting plate.

[0010] As a further embodiment of the present invention, a conical plate is fixedly connected to the top of the sliding plate, and a top plate for contacting the conical plate is fixedly connected to the bottom of the first connecting ring.

[0011] As a further embodiment of the present invention, the outer wall of the threaded conical shovel sleeve is provided with a frosted layer for increasing friction, and the bottom inner wall cross-section of the threaded conical shovel sleeve is an inclined surface.

[0012] As a further embodiment of the present invention, the inner walls of the fixed frame are all smooth walls, and the side wall of the sliding plate can be completely fitted with the inner wall of the fixed frame.

[0013] As a further embodiment of the present invention, the top of the cup head screw is provided with a hexagonal screw groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention employs an alignment and separation component. The sliding plate slides along the fixed shaft, which in turn drives the threaded sleeve to slide as well. This causes the hex wrench to slide along with the fixing bolt, disengaging the fixing bolt from the copper tube heating assembly. The fixing rod then slides down and connects with the sliding pin and pull-out hole. This process automatically removes the fixing bolt connecting the copper tube heating assembly and the heating nozzle from the copper tube heating assembly. This effectively saves time by removing the fixing bolt first. Furthermore, the alignment of the insert and slot ensures the accuracy of the connection between the sliding pin and the pull-out hole, allowing the sliding pin to connect with the pull-out hole simply by pointing it vertically downwards. Attached Figure Description

[0016] Figure 1 Schematic diagram of the structure of cup head screw, impact sleeve, fixing rod, threaded conical shovel sleeve, copper tube heating assembly, and hot nozzle;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the cup head screw, impact sleeve, fixing rod, and threaded conical shovel sleeve.

[0018] Figure 3 A cross-sectional structural diagram showing the disassembled state of the cup head screw, impact sleeve, fixing rod, threaded conical shovel sleeve, copper tube heating assembly, and hot nozzle.

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a structural diagram of the cup head screw, impact sleeve, fixing rod, threaded conical shovel sleeve, copper tube heating assembly, and hot nozzle after disassembly.

[0021] Figure 6 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the alignment separation component structure;

[0023] Figure 8 for Figure 7 Enlarged structural diagram at point B;

[0024] Figure 9 for Figure 7 Enlarged structural diagram at point C;

[0025] Figure 10 This is a schematic diagram of the rear structure of the alignment separation component;

[0026] Figure 11 for Figure 10 Enlarged structural diagram at point D.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Cup head screw; 2. Impact sleeve; 3. Fixing rod; 4. Threaded conical shovel sleeve; 5. Copper tube heating assembly; 6. Pull-out hole; 7. Fixing bolt; 8. Heating nozzle; 9. First spring; 10. Sliding pin; 11. Connecting block; 12. First connecting ring; 13. Top plate; 14. First rotating rod; 15. Second rotating rod; 16. Second connecting ring; 17. Threaded sleeve; 18. Sliding plate; 19. Slot; 20. Transmission sleeve; 21. Hinge; 22. Transmission wheel; 23. Connecting shaft; 24. Fixing shaft; 25. Second spring; 26. Fixing frame; 27. Rotating seat; 28. Limiting plate; 29. ​​Protrusion; 30. Insertion block; 31. Slot; 32. Conical plate; 33. Hex wrench. Detailed Implementation

[0029] Please see Figure 1-11 The present invention provides a technical solution: a small tool for disassembling a copper tube heater, including a fixing rod 3, with sliding pins 10 slidably connected to both ends of the bottom of the fixing rod 3, and a first spring 9 for resetting each sliding pin 10. A threaded conical shovel sleeve 4 is helically sleeved on the fixing rod 3, and a cup head screw 1 is helically connected to the top of the fixing rod 3. An impact sleeve 2 is slidably sleeved on the cup head screw 1, and an alignment and separation component is provided at the bottom of the fixing rod 3. The alignment and separation component is used to connect and separate the sliding pins 10 from the heater.

[0030] When the above solution is put into practical use, the tool is first assembled. The threaded conical shovel sleeve 4 is fitted onto the outside of the fixed rod 3, the impact sleeve 2 is fitted onto the cup head screw 1, the bottom of the cup head screw 1 is threaded to the fixed rod 3, and the bottom of the alignment and separation component is connected to the copper tube heater. After the connection is completed, the tool is moved downwards as a whole, and the heater can be separated and removed by inserting the sliding pin 10 into the heater. The advantage of doing this is that by aligning the sliding pin 10 at the bottom of the fixed rod 3 with the heater through the alignment and separation component, it can be ensured that the sliding pin 10 can always be accurately aligned with the heater and inserted into the heater after the fixed rod 3 is moved down to the designated position each time.

[0031] As a further embodiment of the present invention, the alignment separation assembly includes a first connecting ring 12, which is disposed below the fixing rod 3. A connecting block 11 for fixed connection with the fixing rod 3 is fixedly connected to the top of the first connecting ring 12. A first rotating rod 14 is rotatably connected to the bottom of the first connecting ring 12. A second rotating rod 15 is rotatably connected to the bottom of the first rotating rod 14. A second connecting ring 16 is disposed below the second rotating rod 15. A fixing frame 26 is fixedly connected to one side of the second connecting ring 16. A connecting shaft 23 is rotatably connected to the top of the fixing frame 26. The bottom of the second rotating rod 15 is fixedly sleeved outside the connecting shaft 23. A fixing shaft 24 is fixedly connected inside the fixing frame 26. A sliding plate 18 is slidably connected to the fixing shaft 24. A second spring 25 for resetting the sliding plate 18 is sleeved on the fixing shaft 24. A transmission wheel 22 is rotatably connected to the sliding plate 18. The transmission wheel 22 is slidably sleeved outside the connecting shaft 23. A transmission sleeve 20 is rotatably connected to the top of the sliding plate 18. The transmission sleeve 20 and transmission wheel 22 are connected by a hinge 21. A threaded sleeve 17 is slidably connected inside the transmission sleeve 20. A groove 19 is provided on the threaded sleeve 17. A locking block for engaging with the groove 19 is fixedly connected to the inner wall of the transmission sleeve 20. The threaded sleeve 17 is spirally connected to a sliding plate 18. A hexagonal wrench 33 is slidably connected to one end of the threaded sleeve 17. A heating nozzle 8 is provided at the bottom of the second connecting ring 16. A slot 31 is provided on one side of the heating nozzle 8. The bottom end of the ring 16 is fixedly connected to a plug 30 for docking with the slot 31. The top end of the hot nozzle 8 is sleeved with a copper tube heating assembly 5. Pull-out holes 6 for docking with the sliding pin 10 are respectively opened on both sides of the copper tube heating assembly 5. A fixing bolt 7 is provided on the copper tube heating assembly 5. The fixing bolt 7 passes through the copper tube heating assembly 5 and is spirally connected to the hot nozzle 8. The top end of the sliding plate 18 is fixedly connected to a cone plate 32. The bottom of the first connecting ring 12 is fixedly connected to a top plate 13 for contacting the cone plate 32.

[0032] When the above solution is put into practical use, during alignment, the insert 30 at the bottom of the second connecting ring 16 is first aligned with the slot 31 on the hot nozzle 8 to fix the second connecting ring 16 to the outside of the hot nozzle 8. The fixing rod 3 moves downward, causing the first connecting ring 12 to move together. The downward movement of the first connecting ring 12 causes the first rotating rod 14 and the second rotating rod 15 to flip. The flipping of the second rotating rod 15 will cause the connecting shaft 23 to rotate together. The connecting shaft 23 will then drive the transmission wheel 22 to rotate. The transmission wheel 22 drives the transmission sleeve 20 to rotate through the hinge 21. The transmission sleeve 20 drives the threaded sleeve 17 to rotate. The threaded sleeve 17 is threadedly connected to the sliding plate 18, causing it to rotate along with the transmission sleeve 20 while also sliding along the sliding plate 18. This allows the hexagonal wrench 33 at one end of the threaded sleeve 17 to contact the fixing bolt 7 on the copper tube heating assembly 5. To prevent the hexagonal wrench 33 from not being engaged with the fixing bolt 7, when the hexagonal wrench 33 contacts the surface of the fixing bolt 7, it will retract a certain distance into the threaded sleeve 17 under the continuous pushing of the threaded sleeve 17 until it rotates to the position where it engages with the fixing bolt 7. At this point, the hexagonal wrench 33 will be returned to its original position by the return spring inside the threaded sleeve 17. The push-to-reset mechanism causes the hex wrench 33 to engage instantly with the fixing bolt 7. Once engaged, the threaded sleeve 17 rotates the hex wrench 33, causing the fixing bolt 7 to rotate as well. One end of the hex wrench 33 is magnetic, ensuring a tight connection with the fixing bolt 7 and preventing it from disengaging. As the first connecting ring 12 slides down to the top plate 13 on one side and contacts the conical plate 32, the top plate 13 pushes against the conical plate 32, causing the sliding plate 18 to slide along the fixed shaft 24, compressing the second spring 25. The sliding plate 18, sliding along the fixed shaft 24, will... The moving threaded sleeve 17 slides together, causing the hex wrench 33 to slide along with the fixing bolt 7, thus disengaging the fixing bolt 7 from the copper tube heating assembly 5. The purpose of this is to automatically remove the fixing bolt 7 connecting the copper tube heating assembly 5 and the hot nozzle 8 from the copper tube heating assembly 5 by sliding the fixing rod 3 down through the sliding pin 10 and engaging with the pull hole 6. This effectively saves time in removing the fixing bolt 7 first. Furthermore, the engagement of the insert block 30 and the slot 31 ensures the accuracy of the engagement between the sliding pin 10 and the pull hole 6, allowing the sliding pin 10 to engage with the pull hole 6 simply by being vertically downward.

[0033] When the top plate 13 pushes the sliding plate 18 to completely disengage the fixing bolt 7 from the copper tube heating assembly 5, and the fixing rod 3 slides until the sliding pin 10 at the bottom is horizontally aligned with the pull-out hole 6, rotate the threaded conical shovel sleeve 4 and slide it downwards. The conical surface at the bottom of the threaded conical shovel sleeve 4 gradually pushes the sliding pin 10 to compress the first spring 9 and slide it into the fixing rod 3. This inserts the sliding pin 10 into the pull-out hole 6, thus fixing the copper tube heating assembly 5 to the bottom of the fixing rod 3. Then, pull the cup head screw 1 upwards to vertically remove the copper tube heating assembly 5 from above the heating nozzle 8. This method is effective. The sliding pin 10 applies force from both ends of the copper tube heating assembly 5, ensuring that the copper tube heating assembly 5 is subjected to uniform force and will not deform. Moreover, the force originates from inside the copper tube heating assembly 5, avoiding external force that could cause compression and deformation of the copper tube heating assembly 5. This effectively removes the copper tube heating assembly 5 from the hot nozzle 8. After removing the copper tube heating assembly 5, the threaded conical shovel sleeve 4 is rotated upward to release the compression of the sliding pin 10. Under the elastic force of the first spring 9, the sliding pin 10 is disengaged from the pull hole 6, allowing the copper tube heating assembly 5 to be removed from the bottom of the fixing rod 3.

[0034] As a further embodiment of the present invention, a rotating seat 27 is fixedly connected to the bottom side wall of the first rotating rod 14, and a limiting plate 28 is rotatably connected to the rotating seat 27. A protrusion 29 is fixedly connected to one side of the top of the second rotating rod 15, and a groove that can mate with the protrusion 29 is provided at the bottom of the limiting plate 28.

[0035] When the above solution is put into practical use, the function of the limiting plate 28 is to prevent the first rotating rod 14 and the second rotating rod 15 from being stretched to a vertical state. The connection between the limiting plate 28 and the protrusion 29 ensures that the maximum included angle between the first rotating rod 14 and the second rotating rod 15 is as follows: Figure 4 As shown, the advantage of doing this is to avoid the first rotating rod 14 and the second rotating rod 15 being in a vertical state, and the flipping angle being inconsistent when subjected to force and flipping. When there is a certain angle between the first rotating rod 14 and the second rotating rod 15, the flipping angle is fixed.

[0036] As a further embodiment of the present invention, the outer wall of the threaded conical shovel sleeve 4 is provided with a frosted layer for increasing friction, and the bottom inner wall cross-section of the threaded conical shovel sleeve 4 is an inclined surface.

[0037] When the above solution is put into actual use, the friction is increased by the frosted layer, making it easier to hold the threaded conical shovel sleeve 4 and rotate it without slipping. The inclined side wall allows the bottom of the threaded conical shovel sleeve 4 to effectively push the sliding pin 10 to slide when it comes into contact with the sliding pin 10.

[0038] As a further embodiment of the present invention, the inner walls of the fixed frame 26 are all smooth walls, and the side walls of the sliding plate 18 can be completely fitted with the inner walls of the fixed frame 26.

[0039] When the above solution is put into actual use, the perfect fit ensures that the sliding plate 18 will not wobble in other directions when sliding inside the fixed frame 26, thus maintaining stability.

[0040] As a further embodiment of the present invention, the cup head screw 1 has a hexagonal screw groove at its top;

[0041] When the above solution is put into practical use, if the connection between the copper tube heating assembly 5 and the hot nozzle 8 is very tight and not easy to disconnect manually, a hexagonal plate can be attached to the top of the cup head screw 1 to drive the cup head screw 1 to rotate as a whole, thereby separating the copper tube heating assembly 5 and the hot nozzle 8.

[0042] Working principle: First, assemble the tool. Fit the threaded conical shovel sleeve 4 onto the outside of the fixed rod 3. Fit the impact sleeve 2 onto the cup head screw 1. Thread the bottom of the cup head screw 1 to the fixed rod 3.

[0043] The insertion block 30 at the bottom of the second connecting ring 16 is aligned with the slot 31 on the hot nozzle 8 to fix the second connecting ring 16 to the outside of the hot nozzle 8. The downward movement of the fixing rod 3 causes the first connecting ring 12 to move together. The downward movement of the first connecting ring 12 causes the first rotating rod 14 and the second rotating rod 15 to flip. The flipping of the second rotating rod 15 causes the connecting shaft 23 to rotate together. The connecting shaft 23 then causes the transmission wheel 22 to rotate. The transmission wheel 22 drives the transmission sleeve 20 to rotate through the hinge 21. The transmission sleeve 20 drives the threaded sleeve 17 to rotate. The threaded sleeve 17 is threadedly connected to the sliding plate 18, so that while the threaded sleeve 17 rotates with the transmission sleeve 20, it also slides along the sliding plate 18. This causes the hexagonal wrench 33 at one end of the threaded sleeve 17 to contact the fixing bolt 7 on the copper tube heating assembly 5. To prevent the hexagonal wrench 33 from not being engaged when it contacts the fixing bolt 7, when the hexagonal wrench 33 contacts the surface of the fixing bolt 7, the hexagonal wrench 33 is continuously pushed by the threaded sleeve 17. The wrench 33 will retract a certain distance into the threaded sleeve 17 until the hex wrench 33 rotates to the position where it engages with the fixing bolt 7. The hex wrench 33 will then be pushed back by the return spring inside the threaded sleeve 17, so that the hex wrench 33 and the fixing bolt 7 engage instantly. After the hex wrench 33 engages with the fixing bolt 7, the threaded sleeve 17 drives the hex wrench 33 to rotate, so that the fixing bolt 7 will rotate together. Moreover, one end of the hex wrench 33 is magnetic, so it can be tightly connected with the fixing bolt 7 to ensure that the fixing bolt 7 will not disengage. When the first connecting ring 12 slides down to the top plate 13 on one side and contacts the cone plate 32, the first connecting ring 12 continues to slide down. The top plate 13 will push the cone plate 32 to drive the sliding plate 18 to slide along the fixed shaft 24, compressing the second spring 25. The sliding plate 18 slides along the fixed shaft 24, which will drive the threaded sleeve 17 to slide together, so that the hex wrench 33 slides with the fixing bolt 7, so that the fixing bolt 7 is disengaged from the copper tube heating assembly 5.

[0044] When the top plate 13 pushes the sliding plate 18 to completely disengage the fixing bolt 7 from the copper tube heating assembly 5, and the fixing rod 3 slides until the sliding pin 10 at the bottom is horizontally aligned with the pull-out hole 6, rotate the threaded conical shovel sleeve 4 and slide it downwards. The conical surface at the bottom of the threaded conical shovel sleeve 4 gradually pushes the sliding pin 10 to compress the first spring 9 and slide it into the fixing rod 3. This inserts the sliding pin 10 into the pull-out hole 6, thus fixing the copper tube heating assembly 5 to the bottom of the fixing rod 3. Then, pull the cup head screw 1 upwards to vertically remove the copper tube heating assembly 5 from above the heating nozzle 8. This method is effective. The sliding pin 10 applies force from both ends of the copper tube heating assembly 5, ensuring that the copper tube heating assembly 5 is subjected to uniform force and will not deform. Moreover, the force originates from inside the copper tube heating assembly 5, avoiding external force that could cause compression and deformation of the copper tube heating assembly 5. This effectively removes the copper tube heating assembly 5 from the hot nozzle 8. After removing the copper tube heating assembly 5, the threaded conical shovel sleeve 4 is rotated upward to release the compression of the sliding pin 10. Under the elastic force of the first spring 9, the sliding pin 10 is disengaged from the pull hole 6, allowing the copper tube heating assembly 5 to be removed from the bottom of the fixing rod 3.

Claims

1. A small tool for disassembling a copper tube heater, comprising a fixing rod (3), characterized in that: The bottom ends of the fixed rod (3) are each slidably connected to a sliding pin (10), and a first spring (9) for resetting is sleeved on each sliding pin (10). A threaded conical shovel sleeve (4) is screwed onto the fixed rod (3). A cup head screw (1) is screwed onto the top of the fixed rod (3). An impact sleeve (2) is slidably sleeved on the cup head screw (1). An alignment separation component is provided at the bottom of the fixed rod (3). The alignment separation component is used to connect and separate the sliding pin (10) from the heater. The alignment and separation assembly includes a first connecting ring (12), which is located below the fixed rod (3). A connecting block (11) for fixed connection with the fixed rod (3) is fixedly connected to the top of the first connecting ring (12). A first rotating rod (14) is rotatably connected to the bottom of the first connecting ring (12). A second rotating rod (15) is rotatably connected to the bottom of the first rotating rod (14). A second connecting ring (16) is located below the second rotating rod (15). A fixed frame (26) is fixedly connected to one side of the second connecting ring (16). A connecting shaft (23) is rotatably connected to the top of the fixed frame (26). The bottom of the second rotating rod (15) is fixedly sleeved outside the connecting shaft (23). A fixed shaft (24) is fixedly connected inside the fixed frame (26). The fixed shaft (24) has... A sliding plate (18) is slidably connected. A second spring (25) for resetting the sliding plate (18) is sleeved on the fixed shaft (24). A transmission wheel (22) is rotatably connected to the sliding plate (18). The transmission wheel (22) is slidably sleeved on the outside of the connecting shaft (23). A transmission sleeve (20) is rotatably connected to the top of the sliding plate (18). The transmission sleeve (20) and the transmission wheel (22) are connected together by a hinge (21). A threaded sleeve (17) is slidably connected inside the transmission sleeve (20). A slot (19) is provided on the threaded sleeve (17). A locking block for docking with the slot (19) is fixedly connected to the inner wall of the transmission sleeve (20). The threaded sleeve (17) is helically connected to the sliding plate (18). A hexagonal wrench (33) is slidably connected to one end of the threaded sleeve (17).

2. The small tool for disassembling a copper tube heater according to claim 1, characterized in that: The bottom of the second connecting ring (16) is provided with a hot nozzle (8), and a slot (31) is provided on one side of the hot nozzle (8). The bottom end of the second connecting ring (16) is fixedly connected with a plug (30) for docking with the slot (31). A copper tube heating assembly (5) is sleeved on the top of the hot nozzle (8). Pull-out holes (6) for docking with sliding pins (10) are provided on both sides of the copper tube heating assembly (5). A fixing bolt (7) is provided on the copper tube heating assembly (5). The fixing bolt (7) passes through the copper tube heating assembly (5) and is spirally connected to the hot nozzle (8).

3. The small tool for disassembling a copper tube heater according to claim 1, characterized in that: A rotating seat (27) is fixedly connected to the bottom side wall of the first rotating rod (14), and the rotating seat (27) is rotatably connected to a limiting plate (28). A protrusion (29) is fixedly connected to one side of the top of the second rotating rod (15), and a groove that can mate with the protrusion (29) is provided at the bottom of the limiting plate (28).

4. The small tool for disassembling a copper tube heater according to claim 1, characterized in that: The top of the sliding plate (18) is fixedly connected to a cone plate (32), and the bottom of the first connecting ring (12) is fixedly connected to a top plate (13) for contacting the cone plate (32).

5. A small tool for disassembling a copper tube heater according to claim 1, characterized in that: The outer wall of the threaded conical shovel sleeve (4) is provided with a frosted layer to increase friction, and the bottom inner wall cross-section of the threaded conical shovel sleeve (4) is an inclined surface.

6. A small tool for disassembling a copper tube heater according to claim 1, characterized in that: The inner walls of the fixed frame (26) are all smooth walls, and the side wall of the sliding plate (18) can be completely fitted with the inner wall of the fixed frame (26).

7. A small tool for disassembling a copper tube heater according to claim 1, characterized in that: The cup head screw (1) has a hexagonal screw groove on its top.

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