Novel heating pipe

Abstract

The invention discloses a novel heating pipe, and relates to the technical field of electric heating elements, the novel heating pipe comprises a main body structure and an ultrasonic cleaning machine, a cleaning box is embedded in the top of the ultrasonic cleaning machine, an embedding groove is formed in the inner wall of the cleaning box, a heating shell is arranged in an inner cavity of the embedding groove, and a heating wire is arranged in an inner cavity of the heating shell. A temperature sensor is fixedly connected to the inner wall of the embedding groove, and a PLC is arranged on the surface of the ultrasonic cleaning machine. Through the overall design of the liquid level monitoring assembly, the buoyancy block and the bending plate are used for sensing liquid level changes, and then the special-shaped plate is driven to be in linkage with the triggering piece to achieve automatic on-off of a power supply loop. Meanwhile, through the linkage design of the swing part and the floating part, the heating shell is switched to a horizontal state to improve the heating efficiency when the liquid level rises, and returns to a vertical state when the temperature reaches the standard, so that the interference to taking and placing of the cover plate placing frame is avoided.

Description

Technical Field

[0001] This invention relates to the field of electric heating element technology, and in particular to a novel heating tube. Background Technology

[0002] During the manufacturing process of cover plates, cleaning is usually required to remove oil, debris, and other impurities adhering to the surface. Currently, the commonly used cleaning method in the industry is to use a cleaning tank to hold cleaning solution, heat the cleaning solution to a set temperature through a heating element, and then immerse the cover plate in the high-temperature cleaning solution for soaking and cleaning.

[0003] However, existing cleaning tank structures still have many technical defects in practical use and need further improvement: First, during the cleaning process, the water level in the cleaning tank gradually decreases due to natural evaporation and the removal of workpieces during entry and exit, lacking a corresponding automatic power-off protection device to prevent dry burning. If the operator neglects to replenish water in time, causing the water level to fall below the heating tube, the heating tube will continue to heat without water, which can easily cause the heating tube to overheat, melt, or even burn out, increasing equipment maintenance costs and posing serious safety hazards. Second, in existing technologies, the heating tubes are mostly vertically installed near the cleaning tank wall. While this layout is beneficial to improving the internal space utilization of the cleaning tank and facilitating the handling of workpieces, it has significant drawbacks in terms of heat exchange efficiency. Because the heating tubes are far from the center of the cleaning tank, the heat is mainly concentrated near the tank wall, resulting in a higher liquid temperature near the wall and a slower temperature rise in the central area, creating a large temperature gradient. This uneven temperature distribution significantly prolongs the overall heating time and reduces heating efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing novel heating elements, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to solve the problem that the heating tube is continuously powered on and heated in a waterless state, which is very easy to cause the heating tube body to overheat and melt or even burn out, and that the heating tube is mostly vertically installed near the wall of the cleaning box, so the heat is mainly concentrated near the box wall and the liquid in the central area heats up slowly.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a novel heating tube, comprising: a main structure including an ultrasonic cleaner, wherein a cleaning box is embedded in the top of the ultrasonic cleaner, an embedding groove is formed in the inner wall of the cleaning box, a heating shell is provided in the inner cavity of the embedding groove, a heating wire is provided in the inner cavity of the heating shell, a temperature sensor is fixedly connected to the inner wall of the embedding groove, and a PLC controller is provided on the surface of the ultrasonic cleaner; and a liquid level monitoring component, including a mounting plate disposed on the side of the heating shell near the embedding groove and fixedly connected to the inner wall of the embedding groove, a terminal is embedded in the top of the mounting plate, a trigger element is provided at the bottom of the terminal, a mounting base is fixedly connected to the top of the heating shell and cooperates with the terminal, swing elements are provided on both sides of the mounting base, a through groove is formed in the surface of the mounting plate, and a floating element is provided in the inner cavity of the through groove.

[0008] In a preferred embodiment of the novel heating tube of the present invention, the trigger includes a first connecting electrode fixedly connected to the bottom of the terminal block, the bottom of the first connecting electrode penetrating through the mounting plate and extending into the mounting plate, a second connecting electrode being provided at the bottom of the first connecting electrode, a support rod being fixedly connected to the bottom of the second connecting electrode, a support groove being provided at the bottom of the inner cavity of the mounting plate, the bottom of the support rod penetrating through the support groove and the through groove, and being fixedly connected to a support plate.

[0009] In a preferred embodiment of the novel heating tube of the present invention, a sealing ring is slidably connected to the surface of the support rod and is fixedly connected to the inner cavity of the support groove.

[0010] In a preferred embodiment of the novel heating tube of the present invention, a first spring is fixedly connected to the top of the second connecting electrode and is fixedly connected to the top of the inner cavity of the mounting plate.

[0011] As a preferred embodiment of the novel heating tube of the present invention, the swinging component includes a hinge seat fixedly connected to one side of the mounting plate and hinged to the mounting plate. A buffer block is provided at the bottom of the hinge seat and fixedly connected to the mounting plate. Swinging rods are rotatably connected to both sides of the mounting plate. A movable block is rotatably connected to the corresponding side of the swinging rod and slidably connected to the inner cavity of the through groove. An abutment plate is fixedly connected to the top of the movable block.

[0012] As a preferred embodiment of the novel heating tube of the present invention, the floating component includes an irregularly shaped plate slidably connected to the inner cavity of the through groove, and the bottom of both sides of the irregularly shaped plate is slidably connected to a locking block, which cooperates with the abutment plate.

[0013] As a preferred embodiment of the novel heating tube of the present invention, the following features: sliders are fixedly connected to both sides of the card block; sliding grooves are provided on both sides of the inner cavity of the irregular plate and cooperate with the sliders; a second spring is fixedly connected to the inner cavity of the sliding groove and is fixedly connected to the slider.

[0014] As a preferred embodiment of the novel heating tube of the present invention, wherein: a movable rod is hinged to a corresponding side of the locking block, a movable plate is hinged to the top of the movable rod, a guide groove is provided in the inner cavity of the irregular plate and cooperates with the movable plate, a motor is provided at the top of the movable plate and is fixedly connected to the inner cavity of the irregular plate, a winch is fixedly connected to the output shaft of the motor, a rope is fixedly connected to the surface of the winch and is fixedly connected to the movable plate.

[0015] In a preferred embodiment of the novel heating tube of the present invention, a bending plate is fixedly connected to both sides of the irregular plate, and a buoyancy block is fixedly connected to the bottom of the bending plate.

[0016] As a preferred embodiment of the novel heating tube of the present invention, a limiting plate is fixedly connected to the surface of the irregular plate, and limiting grooves are provided on both sides of the mounting plate and cooperate with the limiting plate.

[0017] The beneficial effects of this invention are as follows: Through the overall design of the liquid level monitoring component, the buoyancy block and bending plate are used to sense changes in liquid level, thereby driving the linkage trigger of the irregular plate to realize the automatic switching of the power supply circuit; at the same time, through the linkage design of the swinging part and the floating part, when the liquid level rises, the heating shell switches to a horizontal state to improve heating efficiency, and returns to a vertical state when the temperature reaches the target, thereby avoiding interference with the placement and removal of the cover plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the new type of heating element.

[0020] Figure 2 This is a partial structural diagram of the new type of heating element.

[0021] Figure 3 This is a structural diagram of the liquid level monitoring component for the new type of heating tube.

[0022] Figure 4 For new heating elements Figure 3 Enlarged view of region A in the middle.

[0023] Figure 5 This is a cross-sectional view of the mounting plate for the new type of heating element.

[0024] Figure 6 For new heating elements Figure 5 Enlarged view of region B in the middle.

[0025] Figure 7 For new heating elements Figure 5 Enlarged view of region C.

[0026] Figure 8 This is a cross-sectional view of the irregularly shaped plate used for the new type of heating element.

[0027] Figure 9 This is a structural diagram of the heating shell and heating wire of the new type of heating tube.

[0028] In the diagram: 1. Main structure; 11. Ultrasonic cleaner; 12. Cleaning tank; 13. Embedded groove; 14. Heating shell; 15. Heating wire; 16. Temperature sensor; 2. Liquid level monitoring assembly; 21. Mounting plate; 22. Terminal block; 23. Trigger; 24. Mounting base; 25. Swinging component; 26. Through groove; 27. Floating component; 231. First connecting electrode; 232. Second connecting electrode; 233. Support rod; 234. Support groove; 235. Support plate; 236. Sealing ring; 237. First spring; 251. Hinge seat; 252. Buffer block; 253. Swing rod; 254. Movable block; 255. Abutment plate; 271. Irregular plate; 272. Locking block; 273. Slider; 274. Slide groove; 275. Second spring; 276. Movable rod; 277. Moving plate; 278. Guide groove; 279. Motor; 2710. Winch; 2711. Rope; 2712. Bending plate; 2713. Buoyancy block; 2714. Limiting plate; 2715. Limiting groove. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, referring to Figures 1-9 This is the first embodiment of the present invention, which provides a novel heating tube, including: a main structure 1, including an ultrasonic cleaner 11, a cleaning box 12 embedded in the top of the ultrasonic cleaner 11, an embedding groove 13 on the inner wall of the cleaning box 12, a heating shell 14 in the inner cavity of the embedding groove 13, a heating wire 15 in the inner cavity of the heating shell 14, a temperature sensor 16 fixedly connected to the inner wall of the embedding groove 13, and a PLC controller on the surface of the ultrasonic cleaner 11; and a liquid level monitoring component 2, including a mounting plate 21 disposed on the side of the heating shell 14 near the embedding groove 13 and fixedly connected to the inner wall of the embedding groove 13, a terminal block 22 embedded in the top of the mounting plate 21, a trigger element 23 disposed at the bottom of the terminal block 22, a mounting base 24 fixedly connected to the top of the heating shell 14 and cooperating with the terminal block 22, swinging elements 25 disposed on both sides of the mounting base 24, a through groove 26 on the surface of the mounting plate 21, and a floating element 27 disposed in the inner cavity of the through groove 26.

[0033] In the main structure 1, the ultrasonic cleaner 11 serves as the basic load-bearing component. The cleaning tank 12 embedded in its top provides space for cleaning the cover plate and installing the heating element. The embedded groove 13 on the inner wall of the cleaning tank 12 is a key structure; its dimensions are adapted to the heating shell 14, ensuring that the heating shell 14 is parallel to the inner wall of the cleaning tank 12 when in a vertical position, avoiding interference with the cover plate placement frame and ensuring smooth removal and placement of the cover plate. The heating wire 15 inside the heating shell 14 is the core heating element, providing a heat source for heating the cleaning fluid. The temperature sensor 16 monitors the cleaning fluid temperature in real time. The temperature is precisely controlled by the PLC controller to avoid excessively high or low temperatures affecting the cleaning effect. The liquid level monitoring component 2 is the core foundation for anti-dry burning protection. The mounting plate 21 provides the mounting carrier for the entire component. The terminal block 22 and the mounting base 24 cooperate to realize the on-off control of the power supply circuit of the heating wire 15. The trigger element 23, the swing element 25 and the floating element 27 work together. The floating element 27 senses the change in liquid level and drives the swing element 25 to drive the heating shell 14 to switch postures. At the same time, the trigger element 23 is linked to realize the automatic on-off of the power supply circuit.

[0034] The ultrasonic cleaner 11, heating shell 14, heating wire 15, temperature sensor 16 and PLC controller are all existing technologies, which are clearly known to those skilled in the art, and will not be described in detail here.

[0035] Example 2, refer to Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, the trigger 23 includes a first connecting electrode 231 fixedly connected to the bottom of the terminal block 22. The bottom of the first connecting electrode 231 penetrates the mounting plate 21 and extends into the mounting plate 21. A second connecting electrode 232 is provided at the bottom of the first connecting electrode 231. A support rod 233 is fixedly connected to the bottom of the second connecting electrode 232. A support groove 234 is provided at the bottom of the inner cavity of the mounting plate 21. The bottom of the support rod 233 penetrates the support groove 234 and the through groove 26 and is fixedly connected to a support plate 235.

[0037] The first connecting electrode 231 in the trigger 23 is fixedly connected to the terminal 22, serving as the fixed end of the power supply circuit; the second connecting electrode 232 is correspondingly arranged with the first connecting electrode 231, forming the movable end of the power supply circuit, and the insertion and separation of the two directly determines the on / off state of the power supply circuit; the support rod 233 provides support and guidance for the second connecting electrode 232, ensuring that it can move up and down in a fixed direction and guaranteeing the accuracy of electrode docking; the support groove 234 at the bottom of the inner cavity of the mounting plate 21 provides space for the movement of the support rod 233, while restricting its movement. The movement trajectory avoids deviation that could lead to electrode docking failure. The support plate 235, as a force transmission component, receives the pushing force from the floating component 27. When the liquid level rises, the floating component 27 pushes the support plate 235 upward, and through the support rod 233, it drives the second connecting electrode 232 to connect with the first connecting electrode 231, thus connecting the power supply circuit. When the liquid level drops, the floating component 27 loses its support for the support plate 235, and the second connecting electrode 232 moves downward and separates from the first connecting electrode 231, cutting off the power supply circuit, thereby realizing automatic power-off protection based on liquid level changes.

[0038] Specifically, a sealing ring 236 is slidably connected to the surface of the support rod 233 and is fixedly connected to the inner cavity of the support groove 234.

[0039] The sealing ring 236 can effectively prevent the cleaning fluid in the cleaning tank 12 from seeping into the inner cavity of the mounting plate 21 through the gap between the support rod 233 and the support groove 234; it can also prevent the cleaning fluid from contacting electrical components such as the first connecting electrode 231 and the second connecting electrode 232, thus preventing short circuits, corrosion and other faults, ensuring the reliability of the power supply circuit switching control, extending the service life of the trigger 23, and ensuring the overall stability of the liquid level monitoring component 2.

[0040] Specifically, the top of the second connecting electrode 232 is fixedly connected to the first spring 237, and is also fixedly connected to the top of the inner cavity of the mounting plate 21.

[0041] When the liquid level rises, the floating component 27 pushes the support plate 235 and support rod 233 upward, causing the second connecting electrode 232 to move upward and compress the first spring 237, so that the first connecting electrode 231 and the second connecting electrode 232 are connected to supply power. When the liquid level drops, the supporting force of the floating component 27 on the support plate 235 disappears, the compressed first spring 237 releases its elastic potential energy, generating a downward driving force, causing the second connecting electrode 232 to move downward quickly, accurately separating from the first connecting electrode 231, and cutting off the power supply circuit.

[0042] Specifically, the swinging component 25 includes a hinge seat 251 fixedly connected to one side of the mounting plate 21 and hinged to the mounting base 24. A buffer block 252 is provided at the bottom of the hinge seat 251 and fixedly connected to the mounting plate 21. Swing rods 253 are rotatably connected to both sides of the mounting base 24. A movable block 254 is rotatably connected to the corresponding side of the swing rod 253 and slidably connected to the inner cavity of the through groove 26. An abutment plate 255 is fixedly connected to the top of the movable block 254.

[0043] The hinge 251 in the swinging component 25 is hinged to the mounting base 24, providing a rotation fulcrum for the swinging of the mounting base 24 and the heating shell 14, ensuring the stability of the posture switching; the buffer block 252 is fixed to the mounting plate 21 and is used to buffer and limit the mounting base 24 when the heating shell 14 returns to the vertical state, avoiding collision damage to the components; the swinging rod 253, the movable block 254 and the abutment plate 255 constitute a transmission mechanism. When the floating component 27 rises, it pushes the abutment plate 255 to drive the movable block 254 to slide along the through groove 26, and drives the mounting base 24 to swing around the hinge 251 through the swinging rod 253, so that the heating shell 14 switches from the vertical state to the horizontal state. At this time, the annular heating shell 14 can be more evenly distributed in the cleaning fluid, improving the heat exchange efficiency; when the floating component 27 falls and the abutment plate 255 loses support, it drives the movable block 254 and the swinging rod 253 to return to the vertical state under the action of gravity, avoiding interference with the placement and removal of the cover plate frame.

[0044] Specifically, the floating component 27 includes a shaped plate 271 that is slidably connected to the inner cavity of the through groove 26. The bottom of both sides of the shaped plate 271 is slidably connected to a locking block 272, which cooperates with the abutment plate 255.

[0045] The irregularly shaped plate 271 is slidably connected within the through groove 26, serving as the core carrier for liquid level sensing. Through the cooperation of the locking block 272 and the abutment plate 255, power transmission between the irregularly shaped plate 271 and the swinging component 25 is achieved. When the cleaning fluid level rises, buoyancy drives the irregularly shaped plate 271 to rise along the through groove 26, and the locking block 272 pushes the abutment plate 255 to move, thereby driving the swinging component 25 to switch the posture of the heating shell 14. Simultaneously, the rising irregularly shaped plate 271 pushes the support plate 235 to rise, triggering the power supply circuit to the trigger 23. When the liquid level drops, the irregularly shaped plate 271 descends with the liquid level, losing support for the abutment plate 255 and the support plate 235, causing the swinging component 25 to reset and the trigger 23 to cut off the power supply.

[0046] Specifically, sliders 273 are fixedly connected to both sides of the card block 272, and grooves 274 are opened on both sides of the inner cavity of the irregular plate 271, which cooperate with the sliders 273. A second spring 275 is fixedly connected to the inner cavity of the groove 274, and is fixedly connected to the slider 273.

[0047] The slide groove 274 provides a sliding guide for the slider 273, ensuring that the locking block 272 can extend and retract in a fixed direction; the second spring 275 provides elastic support for the locking block 272, so that the locking block 272 remains in the extended state under normal conditions, which facilitates the power transmission by cooperating with the abutment plate 255.

[0048] Specifically, a movable rod 276 is hinged to the corresponding side of the locking block 272, and a movable plate 277 is hinged to the top of the movable rod 276. A guide groove 278 is provided in the inner cavity of the irregular plate 271 and cooperates with the movable plate 277. A motor 279 is provided on the top of the movable plate 277 and is fixedly connected to the inner cavity of the irregular plate 271. A winch 2710 is fixedly connected to the output shaft of the motor 279. A rope 2711 is fixedly connected to the surface of the winch 2710 and is fixedly connected to the movable plate 277.

[0049] When the water temperature reaches the predetermined value, the PLC controller receives the signal from the temperature sensor 16 and controls the motor 279 to start. The output shaft of the motor 279 drives the winch 2710 to rotate, causing the rope 2711 to tighten and pull the moving plate 277 to move along the guide groove 278. The moving plate 277 drives the movable rod 276 to swing, driving the locking block 272 to retract into the irregular plate 271, causing the locking block 272 to separate from the abutment plate 255. At this time, the abutment plate 255 loses its support, and under the action of gravity, it drives the swinging component 25 and the mounting base 24 to reset, so that the heating shell 14 returns to the vertical state, avoiding interference of the horizontal heating shell 14 with the placement of the cover plate frame.

[0050] Specifically, both sides of the irregular plate 271 are fixedly connected to bending plates 2712, and the bottom of the bending plates 2712 is fixedly connected to a buoyancy block 2713.

[0051] The buoyancy block 2713 is made of lightweight, high-buoyancy material, which can generate sufficient buoyancy in the cleaning fluid to drive the bending plate 2712 and the irregular plate 271 to rise smoothly. The bending plate 2712 is used to connect the buoyancy block 2713 and the irregular plate 271, expand the buoyancy action surface, and make the buoyancy more evenly transmitted to the irregular plate 271, so as to avoid the irregular plate 271 from getting stuck or tilting due to uneven force.

[0052] Specifically, a limiting plate 2714 is fixedly connected to the surface of the irregular plate 271, and limiting grooves 2715 are provided on both sides of the mounting plate 21, which cooperate with the limiting plate 2714.

[0053] The limiting plate 2714 is fixed on both sides of the irregular plate 271, and the limiting groove 2715 is opened on both sides of the mounting plate 21. The two slide together to limit the movement trajectory of the irregular plate 271 within a fixed range, ensuring that the irregular plate 271 can accurately push the support plate 235 when it rises. At the same time, the locking block 272 accurately connects to the abutment plate 255, ensuring the accuracy of power supply on / off control and attitude switching, and further improving the stability and reliability of the entire device operation.

[0054] When in use, when the device is not working, all components of the liquid level monitoring assembly 2 are in the initial state, the heating shell 14 is in a vertical state, and is parallel to the inner wall of the cleaning tank 12 through the embedded groove 13 to avoid interference with the cover plate placement frame; at this time, the buoyancy block 2713, the bending plate 2712 and the irregular plate 271 are in the low position, the first spring 237 is in the natural state, the second connecting electrode 232 is separated from the first connecting electrode 231, and the power supply circuit of the heating wire 15 is disconnected.

[0055] As cleaning fluid is added to the forward ultrasonic cleaner 11, the buoyancy block 2713, under the action of buoyancy, drives the bending plate 2712 and the irregular plate 271 to rise along the through groove 26. The limiting plates 2714 on both sides of the irregular plate 271 slide along the limiting groove 2715 to ensure accurate rising trajectory. On the one hand, during the rising process of the irregular plate 271, the locking blocks 272 extending from both sides of it contact the abutment plate 255 and push it to rise. The abutment plate 255 drives the movable block 254 to slide along the through groove 26, thereby driving the swing rod 253 to make the mounting base 24 swing around the hinge 251, thereby driving the mounting base 24 and the heating shell 14 to gradually switch from a vertical state to a horizontal state. The annular heating shell 14 with spaced grooves is evenly distributed in the cleaning fluid, increasing the heat exchange area. On the other hand, the rising irregular plate 271 pushes the support plate 235 to rise, and the support plate 235 drives the support rod 233 to rise along the support groove 234. The sealing ring 236 on the surface of the support rod 233 ensures a sliding seal and prevents the cleaning fluid from seeping in. The support rod 233 drives the second connecting electrode 232 to rise and compress the first spring 237 until the second connecting electrode 232 and the first connecting electrode 231 are plugged in and connected, so that the terminal 22 forms a passage with the mounting base 24 through the second connecting electrode 232, the first connecting electrode 231, and the heating wire 15 power supply circuit is connected.

[0056] After the power supply circuit is connected, the operator turns on the heating wire 15 via the PLC controller. The heating wire 15 heats up inside the heating shell 14. The annular heating shell 14 with spaced grooves increases the surface area, quickly transferring heat to the cleaning fluid and improving heat exchange efficiency. The temperature sensor 16 monitors the cleaning fluid temperature in real time and transmits the signal to the PLC controller for precise temperature control. When the water temperature reaches the preset value, the temperature sensor 16 sends a signal to the PLC controller, which then controls the motor 279 to start. The output shaft of the motor 279 drives the winch 2710 to rotate, tightening and pulling the rope 2711. The movable plate 277 moves along the guide groove 278; the movable plate 277 drives the movable rod 276 to swing, driving the locking block 272 to retract into the irregular plate 271, the locking block 272 drives the slider 273 to slide along the slide groove 274 and compress the second spring 275; when the locking block 272 is completely separated from the abutment plate 255, the abutment plate 255 loses support, and under the action of gravity, it drives the movable block 254 and the swing rod 253 to reset, the mounting base 24 swings around the hinge base 251 until it contacts the buffer block 252, the heating shell 14 returns to the vertical state to avoid interference with the placement of the cover plate frame, and then the cover plate can be placed in the cleaning box 12 for cleaning.

[0057] During the cleaning process, if the cleaning fluid level drops due to evaporation or the removal of the workpiece, the buoyancy block 2713 will move the bending plate 2712 and the irregular plate 271 downwards as the liquid level drops, and the irregular plate 271 will lose its support for the support plate 235. At this time, the first spring 237 releases its elastic potential energy, which will move the second connecting electrode 232 downwards, causing the second connecting electrode 232 to separate from the first connecting electrode 231. The power supply circuit of the heating wire 15 will be quickly cut off to prevent the heating wire 15 from burning dry in a waterless state, thus achieving dry burning protection.

[0058] After cleaning, the cleaning fluid is drained, and the liquid level drops to a low level. The buoyancy block 2713, bending plate 2712, and irregular plate 271 reset as the liquid level drops. During the descent of the irregular plate 271, the slope of the locking block 272 contacts the abutment plate 255, and is squeezed inward to compress the second spring 275. When the side of the locking block 272 separates from the abutment plate 255, the second spring 275 releases its elastic potential energy to reset the locking block 272. All components of the liquid level monitoring assembly 2 return to their initial state, ready for the next processing.

[0059] Example 3, referring to Figure 9 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0060] Specifically, the heating housing 14 has an annular profile with spaced grooves to increase the surface area of ​​the heating housing 14.

[0061] The heating shell 14 adopts an annular contour design with spaced grooves. Its core function is to maximize the surface area and solve the problems of low heat exchange efficiency and large temperature gradient caused by the small surface contact area and distance from the center of the cleaning tank 12 of traditional heating tubes. This allows heat to be transferred to the cleaning fluid more quickly and evenly.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A novel heating element, characterized in that: include, The main structure (1) includes an ultrasonic cleaner (11), a cleaning box (12) is embedded in the top of the ultrasonic cleaner (11), an embedding groove (13) is opened in the inner wall of the cleaning box (12), a heating shell (14) is provided in the inner cavity of the embedding groove (13), a heating wire (15) is provided in the inner cavity of the heating shell (14), a temperature sensor (16) is fixedly connected to the inner wall of the embedding groove (13), and a PLC controller is provided on the surface of the ultrasonic cleaner (11); and, The liquid level monitoring component (2) includes a mounting plate (21) disposed on the side of the heating shell (14) near the embedded groove (13) and fixedly connected to the inner wall of the embedded groove (13). A terminal block (22) is embedded in the top of the mounting plate (21), and a trigger element (23) is disposed at the bottom of the terminal block (22). A mounting base (24) is fixedly connected to the top of the heating shell (14) and cooperates with the terminal block (22). Swinging elements (25) are disposed on both sides of the mounting base (24). A through groove (26) is opened on the surface of the mounting plate (21), and a floating element (27) is disposed in the inner cavity of the through groove (26).

2. The novel heating element as described in claim 1, characterized in that: The trigger (23) includes a first connecting electrode (231) fixedly connected to the bottom of the terminal block (22). The bottom of the first connecting electrode (231) penetrates through the mounting plate (21) and extends into the mounting plate (21). A second connecting electrode (232) is provided at the bottom of the first connecting electrode (231). A support rod (233) is fixedly connected to the bottom of the second connecting electrode (232). A support groove (234) is provided at the bottom of the inner cavity of the mounting plate (21). The bottom of the support rod (233) penetrates through the support groove (234) and the through groove (26) and is fixedly connected to a support plate (235).

3. The novel heating element as described in claim 2, characterized in that: The surface of the support rod (233) is slidably connected to a sealing ring (236) and is fixedly connected to the inner cavity of the support groove (234).

4. The novel heating element as described in claim 3, characterized in that: The top of the second connecting electrode (232) is fixedly connected to a first spring (237) and is fixedly connected to the top of the inner cavity of the mounting plate (21).

5. The novel heating element as described in claim 1, characterized in that: The swinging component (25) includes a hinge seat (251) fixedly connected to one side of the mounting plate (21) and hinged to the mounting base (24). A buffer block (252) is provided at the bottom of the hinge seat (251) and fixedly connected to the mounting plate (21). Swing rods (253) are rotatably connected to both sides of the mounting base (24). A movable block (254) is rotatably connected to the corresponding side of the swing rod (253) and slidably connected to the inner cavity of the through groove (26). An abutment plate (255) is fixedly connected to the top of the movable block (254).

6. The novel heating element as described in claim 1, characterized in that: The floating component (27) includes a shaped plate (271) that is slidably connected to the inner cavity of the through groove (26). The bottom of both sides of the shaped plate (271) is slidably connected to a locking block (272) and cooperates with the abutment plate (255).

7. The novel heating element as described in claim 6, characterized in that: The card block (272) is fixedly connected to sliders (273) on both sides. The inner cavity of the irregular plate (271) is provided with grooves (274) on both sides, which cooperate with the sliders (273). The inner cavity of the grooves (274) is fixedly connected to a second spring (275), which is also fixedly connected to the sliders (273).

8. The novel heating element as described in claim 7, characterized in that: A movable rod (276) is hinged to one side of the card block (272), and a movable plate (277) is hinged to the top of the movable rod (276). A guide groove (278) is provided in the inner cavity of the irregular plate (271) and cooperates with the movable plate (277). A motor (279) is provided on the top of the movable plate (277) and is fixedly connected to the inner cavity of the irregular plate (271). A winch (2710) is fixedly connected to the output shaft of the motor (279). A rope (2711) is fixedly connected to the surface of the winch (2710) and is fixedly connected to the movable plate (277).

9. The novel heating element as described in claim 8, characterized in that: Both sides of the irregular plate (271) are fixedly connected to bending plates (2712), and the bottom of the bending plates (2712) is fixedly connected to a buoyancy block (2713).

10. The novel heating element as described in claim 6, characterized in that: A limiting plate (2714) is fixedly connected to the surface of the irregular plate (271), and a limiting groove (2715) is provided on both sides of the mounting plate (21), which cooperates with the limiting plate (2714).

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