Locking structure of heating pipe

Abstract

The utility model relates to a locking structure of a heating pipe, which comprises a heating pipe body, a locking hoop and a rivet, one port of the heating pipe body is a water inlet, the other port of the heating pipe body is a water outlet, the water inlet and the water outlet are communicated with an inner cavity of the heating pipe body, and the heating pipe body is used for heating water passing through a water channel; the lock hoop is provided with a hooping cavity used for hooping a heating pipe body, an upper clamping piece and a lower clamping piece are arranged at an inlet of the hooping cavity, and an opening allowing the heating pipe body to penetrate through conveniently is formed between the upper clamping piece and the lower clamping piece. The heating pipe body penetrates through the opening to enter the hooping cavity, and the rivet penetrates through the upper clamping piece and the lower clamping piece to seal the opening and lock the hooping cavity, so that the size of the hooping cavity is reduced, and the hooping cavity hoopes the heating pipe body. According to the design, the rivets are adopted to replace traditional bolts and nuts to serve as locking pieces. The rivet is simple in structure and low in manufacturing cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the locking structure of heating pipe. BACKGROUND

[0002] The heating pipe is widely used in industry and life field, and in the installation process of the heating pipe, the stability and installation convenience of the fixed structure are important factors influencing product performance.

[0003] In the prior art, the fixing mode of the heating pipe usually adopts the mode of the lock hoop cooperating with the bolt and the nut, and the lock hoop fixes the heating wire of the heating pipe through the tightening of the bolt and the nut. However, this mode has the following disadvantages:

[0004] The material cost is high: the use of the bolt and the nut needs high-strength metal material, which increases the overall material cost of the lock hoop fixing structure.

[0005] The labor cost is high: the fixing of the bolt and the nut needs additional tool operation, such as wrench, and the worker needs to manually tighten during installation, which is complex and time-consuming, resulting in the increase of labor cost.

[0006] The installation efficiency is low: the locking mode of the bolt and the nut involves multiple components, and the installation steps are complicated. INVENTION CONTENTS

[0007] The purpose of the utility model is to provide a locking structure of a heating pipe which reduces material and labor costs and improves installation efficiency.

[0008] The purpose of the utility model is achieved as follows:

[0009] A locking structure of a heating pipe, comprising a heating pipe body, a lock hoop and a rivet, one end of the heating pipe body is a water inlet, the other end of the heating pipe body is a water outlet, the water inlet and the water outlet communicate with the inner cavity of the heating pipe body, and the heating pipe body heats the water passing through the water channel;

[0010] The lock hoop is provided with a clamping cavity for clamping the heating pipe body, an upper clamping piece and a lower clamping piece are arranged at the inlet of the clamping cavity, and an opening for the heating pipe body to pass through is formed between the upper clamping piece and the lower clamping piece.

[0011] The heating pipe body passes through the opening and enters the clamping cavity, the rivet closes the opening and locks the clamping cavity by passing through the upper clamping piece and the lower clamping piece, so as to reduce the size of the clamping cavity, so that the clamping cavity clamps the heating pipe body.

[0012] The design adopts a rivet to replace the traditional bolt and nut as a locking piece. The rivet structure is simple, the manufacturing cost is low, and the material is less, which significantly reduces the overall material cost of the lock hoop fixing structure compared with the bolt and nut.

[0013] The installation operation of the rivet is relatively simple, only needs to be fixed through a riveting tool, and does not need a complex manual tightening process. Compared with the assembly mode of a traditional bolt and nut, the artificial operation time and technical requirements are greatly reduced, so that the artificial cost is reduced.

[0014] The rivet locking mode reduces the installation steps, avoids the cumbersome operation of multiple tightening in the traditional bolt and nut locking mode, makes the installation process more rapid and efficient, and is particularly suitable for batch installation and production.

[0015] The locking structure of the rivet is simple and stable, can effectively close the opening of the clamping cavity and lock the clamping cavity, and ensures the close fixing of the clamping cavity to the heating pipe body. The fixing effect is stable and reliable, and the heating pipe body can be effectively prevented from loosening or displacement.

[0016] In summary, the rivet locking design replaces the traditional bolt and nut mode, significantly reduces the cost, improves the installation efficiency and fixing effect, and has good economic benefits and application prospect.

[0017] The purpose of the utility model can also be solved by the following technical measures:

[0018] Further, the upper clamping sheet and the lower clamping sheet are provided with through holes through which the rivet passes.

[0019] The through holes of the upper clamping sheet and the lower clamping sheet can accurately guide the position of the rivet, so that the rivet can quickly and accurately pass through the two sheets, thereby simplifying the installation process and reducing the deviation.

[0020] The setting of the through hole makes the rivet pass through and be fixed in the upper clamping sheet and the lower clamping sheet, and forms a more stable locking structure, further improves the fixing effect of the clamping cavity to the heating pipe body, and effectively prevents loosening and displacement.

[0021] After the through hole design is standardized, automatic alignment and riveting can be realized, which helps to improve the efficiency in batch production process, reduces the time and error of manual alignment, and further reduces the production cost.

[0022] The through hole design of the upper clamping sheet and the lower clamping sheet is simple to process and can be completed through conventional stamping or drilling process without complex manufacturing technology, which is suitable for large-scale manufacturing and popularization.

[0023] The through hole design makes the rivet pass in more smoothly, reduces the resistance and jamming phenomenon during operation, and improves the installation convenience and user experience.

[0024] In summary, the setting of the through hole through which the rivet passes further optimizes the locking mode, enhances the stability of the fixing structure and the operation convenience, is suitable for batch production, and has higher economy and practicality.

[0025] Further, the upper clamping piece end is provided with a power supply terminal, which is electrically connected with the heating pipe body. An external power supply supplies power to the heating pipe body through the power supply terminal to make the heating pipe body work to heat the water passing through the water channel.

[0026] The power supply terminal is arranged at the end of the upper clamping piece of the metal lock hoop, effectively integrating the fixing and power supply functions of the heating pipe, reducing the need for independent electrical connectors, making the overall structure more compact, and saving installation space of the equipment.

[0027] The metal lock hoop itself has excellent electrical conductivity, can form a stable electrical connection with the heating pipe body through the power supply terminal, reduce power transmission loss, improve power supply efficiency, and thus ensure that the heating performance of the heating pipe body is more stable when working.

[0028] The combination design of the power supply terminal and the metal lock hoop ensures that the heating pipe body is fixed and electrically connected at the same time, greatly simplifies the installation process, improves the installation efficiency, and reduces the misalignment or looseness problems caused by separate power supply terminal installation.

[0029] The metal lock hoop has high strength and heat resistance, and can maintain structural stability in high temperature environment. The close connection between the power supply terminal and the heating pipe body effectively prevents poor electrical contact and avoids the risk of heating or sparking caused by long-term use, improving safety and durability.

[0030] The design of the integrated power supply terminal avoids the need for manufacturing and installation of independent electrical connectors, reducing material and labor costs, and further saving production time and labor input by simplifying the installation steps.

[0031] The power supply terminal is located at the end of the upper clamping piece, which is a reasonable design position, facilitating the connection of external power supply, and is suitable for different types of power supply connection methods (such as plug-in or clamping), meeting the needs of various use scenarios and improving versatility.

[0032] The metal lock hoop and the power supply terminal are designed in an integrated manner, with high modularity. When damaged or in need of maintenance, the entire component can be replaced directly, reducing maintenance difficulty and time cost, and improving the efficiency of after-sales service of the equipment.

[0033] Further, it further includes a spiral body, the diameter of the spiral body is smaller than the inner diameter of the heating pipe body, the spiral body is fixed in the inner cavity of the heating pipe body, and the water channel for guiding the directional flow of water is formed between the inner wall of the heating pipe body and the spiral body.

[0034] Due to the introduction of the spiral body structure, the heating pipe body can be placed at any angle without affecting its heating performance. Users are no longer limited by the placement of the heating pipe body, increasing the convenience of installation and use.

[0035] The spiral body forms water channels inside the heating pipe, ensuring that even small water flows can be quickly directed through, thereby avoiding the dry burning problem that traditional heating pipes are prone to when water flow is insufficient, improving safety in use.

[0036] The spiral body design enables water flow to be directed along a specific path, improving water flow speed and heating efficiency. This not only enhances the heating effect of the water heater, but also provides hot water more quickly.

[0037] When water flows in the spiral channel, it has more sufficient contact with the inner wall of the heating pipe, heating more evenly, reducing local overheating or uneven heating, and improving overall heating performance.

[0038] The design structure is simple, low in manufacturing cost, easy to produce and maintain. The combination of the spiral body and the heating pipe not only improves performance, but also maintains structural simplicity, facilitating large-scale application.

[0039] By optimizing the water flow path and heating efficiency, this design can reduce heat loss, improve energy utilization, help save energy, and meet environmental protection requirements.

[0040] Further, the spiral body is a screw rod, the length of the screw rod is less than or equal to the length of the heating pipe, and the threads of the screw rod and the inner wall of the heating pipe form a water channel that guides water to flow radially along the heating pipe.

[0041] The water channel between the screw rod threads and the inner wall of the heating pipe guides water to flow radially, making water contact with the inner wall of the heating pipe more sufficient, improving water heating efficiency and uniformity, and providing more stable and rapid hot water supply.

[0042] Further, the heating pipe includes a hollow conduit for water to pass through, an insulation layer, and an electromagnetic coil, and the hollow conduit is surrounded by the insulation layer.

[0043] The electromagnetic coil is wrapped around the insulation layer, the clamping cavity clamps the electromagnetic coil, and the electromagnetic coil and the power supply terminal are electrically connected.

[0044] The electromagnetic coil generates a changing magnetic field when energized, which penetrates the hollow conduit and induces eddy currents. The eddy currents in the hollow conduit generate heat due to the electrical resistance of the metal, which heats the water passing through the hollow conduit.

[0045] The electromagnetic coil generates a changing magnetic field when energized, which penetrates the hollow conduit and induces eddy currents, causing heat to be generated inside the hollow conduit. This heating method utilizes the principle of eddy currents, and heat is generated more quickly and uniformly, improving the heating efficiency of the water heater.

[0046] Due to the high efficiency and low energy loss of eddy current heating, it can better utilize electric energy, and the heating process is more energy-saving and environmentally friendly, which helps to reduce energy consumption and environmental pollution.

[0047] The multi-layer structure design of the hollow conduit and the insulation layer effectively isolates the electromagnetic coil and the water flow, preventing electrical accidents. The insulation layer provides electrical insulation protection, ensuring safety during use.

[0048] The multi-layer design of the hollow conduit, insulation layer, and electromagnetic coil enhances the overall structural strength and stability of the heating pipe body, reducing material deformation and damage caused by thermal expansion and contraction.

[0049] The magnetic field generated by the electromagnetic coil can quickly induce eddy current, heating quickly, allowing users to obtain hot water faster and improving the user experience.

[0050] Eddy current heating reduces the formation of scale, reducing the risk of scale buildup inside the heating pipe body, ensuring long-term efficient operation of the equipment, and reducing the need for cleaning and maintenance.

[0051] Further, the heating pipe body includes a hollow conduit for water passage, an insulation layer, and an electric heating film, the hollow conduit is surrounded by the insulation layer;

[0052] The electric heating film is wrapped around the insulation layer, the clamping cavity clamps the electric heating film, and the electric heating film and the power supply terminal are electrically connected;

[0053] The electric heating film generates heat when powered on, which heats the hollow conduit through the insulation layer, and the heat generated by the hollow conduit heats the water passing through the hollow conduit.

[0054] The electric heating film generates heat quickly after being powered on, which is effectively transferred to the hollow conduit through the insulation layer, quickly heating the water flow passing through the hollow conduit, achieving instant hot water supply.

[0055] The electric heating film is wrapped around the insulation layer, which can evenly distribute heat and evenly heat the water flow in the hollow conduit, avoiding local overheating or uneven heating problems, and improving user experience.

[0056] The design of the hollow conduit and the insulation layer ensures the isolation of the electric heating film and the water flow, effectively preventing the safety hazards caused by direct contact between the electric heating film and the water flow, and ensuring electrical safety during use.

[0057] Compared with traditional heating elements, the electric heating film has a simple structure and is easy to install, reducing manufacturing and maintenance costs and improving product reliability and economy.

[0058] The electric heating film has a fast heat response speed, can quickly provide hot water, reduces waiting time, improves use efficiency, and meets the user's demand for instant hot water.

[0059] The electric heating film has high thermal efficiency and excellent energy conversion efficiency, reduces heat loss, improves overall energy efficiency, helps energy saving and environmental protection, and reduces operating costs.

[0060] The electric heating film has the characteristics of thinness and flexibility, making the overall structure of the heating pipe compact and occupying small space, which is conducive to the compactness and miniaturization of the water heater design, and is suitable for various installation environments.

[0061] The electric heating film and the insulation layer material are of high quality, have good high-temperature resistance and corrosion resistance, prolong the service life of the heating pipe, and reduce the need for frequent replacement.

[0062] The surface of the electric heating film is smooth and not easy to attach scale, reducing the risk of scale accumulation inside the hollow conduit, maintaining the long-term stability of the heating efficiency, and reducing the workload of cleaning and maintenance.

[0063] Further, the heating pipe body comprises a hollow conduit for water passing through, an insulation layer and an electric heating wire, and the hollow conduit is provided with the insulation layer on the periphery;

[0064] The electric heating wire is wound on the insulation layer, the hoop cavity clamps the electric heating wire, and the electric heating wire and the power supply terminal are electrically connected;

[0065] The electric heating wire generates heat after being electrified, and the heat is transferred to the hollow conduit through the insulation layer, so as to quickly heat the water flow passing through the hollow conduit.

[0066] The electric heating wire generates heat rapidly after being electrified, which is effectively transferred to the hollow conduit through the insulation layer, so as to quickly heat the water flow passing through the hollow conduit and realize instant hot water supply.

[0067] The electric heating wire is wound on the insulation layer, which can uniformly distribute heat and uniformly heat the water flow in the hollow conduit, avoiding the problems of local overheating or uneven heating, and improving user experience.

[0068] The design of the hollow conduit and the insulation layer ensures the isolation of the electric heating wire and the water flow, effectively prevents the safety hazard caused by the direct contact of the electric heating wire with the water flow, and ensures the electrical safety during use.

[0069] The electric heating wire has a fast heat response speed, can quickly provide hot water, reduces waiting time, improves use efficiency, and meets the user's demand for instant hot water.

[0070] The electric heating wire has high thermal efficiency and high energy conversion rate, reduces heat loss, improves overall energy efficiency, helps energy saving and environmental protection, and reduces operating costs.

[0071] Compared with traditional heating elements, the electric heating wire has a simple structure and is easy to install, which reduces the manufacturing and maintenance costs and improves the reliability and economy of the product.

[0072] The electric heating wire and the insulating layer are made of high-quality materials with good high-temperature resistance and corrosion resistance, which prolongs the service life of the heating pipe and reduces the need for frequent replacement.

[0073] The smooth surface of the electric heating wire reduces the risk of scale accumulation inside the hollow conduit, maintains the long-term stability of heating efficiency, and reduces the workload of cleaning and maintenance.

[0074] The flexibility of the electric heating wire makes the overall structure of the heating pipe compact and occupies less space, which is beneficial to the compactness and miniaturization of water heater design and suitable for various installation environments.

[0075] The materials of the electric heating wire and the insulating layer have low cost and mature manufacturing process, which can reduce production cost and improve market competitiveness and cost performance of the product.

[0076] The clamping cavity effectively fixes the electric heating wire, avoiding loosening or displacement due to factors such as vibration, stress or thermal expansion during work, ensuring the heating effect and stability of the electric heating wire.

[0077] The electric heating wire is in close contact with the heating pipe, and the clamping cavity effectively fixes the position of the electric heating wire, so that the electric heating wire can uniformly transfer heat to the heating pipe, improve the heat conduction efficiency and heating uniformity, and reduce energy loss.

[0078] The clamping action of the clamping cavity can reduce the wear or breakage of the electric heating wire caused by loosening during work, and also reduces the risk of local overheating of the electric heating wire, thereby prolonging the service life of the electric heating wire.

[0079] The design of the clamping cavity makes the installation of the electric heating wire more convenient, without the need for additional bolts or other fixing parts, simplifying the installation process. In addition, the electric heating wire can be quickly disassembled when it needs to be replaced or maintained, improving the maintenance efficiency.

[0080] The tight fixing action of the clamping cavity effectively avoids the gap between the electric heating wire and the heating pipe, thereby reducing the heat loss phenomenon caused by the gap, improving the energy utilization efficiency, and achieving the purpose of energy saving.

[0081] After the clamping cavity fixes the electric heating wire, it can avoid the electric heating wire from contacting the non-target area due to loosening, reducing the safety hazards caused by short circuit or overheating, and enhancing the reliability and safety of the equipment operation.

[0082] Further, the hollow conduit is a hollow metal pipe.

[0083] The utility model discloses the following beneficial effects:

[0084] The utility model discloses the introduction of helix structure, and heating pipe body can be placed under any angle, and will not affect its heating performance. User is no longer limited to the placing mode of heating pipe body, and the convenience of installation and use is increased.

[0085] The utility model discloses water in helical channel flows, and there is more sufficient contact with the inner wall of heating pipe body, and heating is more uniform, reduces the situation of local overheating or uneven heating, improves overall heating performance.

[0086] The utility model discloses the water channel between screw thread and the inner wall of heating pipe body guides water to flow along the radial, makes water and heating pipe body inner wall contact more fully, improves the heating efficiency and uniformity of water, provides more stable and rapid hot water supply.

[0087] The utility model discloses the power supply of electromagnetic coil produces the magnetic field of variation, and the eddy current of hollow guide pipe is inducted, and makes the heat of hollow guide pipe inside. This heating mode utilizes eddy current principle, and heat production is more rapid, uniform, and the heating efficiency of water heater is improved.

[0088] The utility model discloses the power supply terminal is arranged at the upper clamping piece end of metal lock hoop, effectively integrates the fixing and power supply function of heating pipe, reduces the demand of independent electrical connecting piece, makes the whole structure more compact, saves the installation space of equipment, and the metal lock hoop has excellent conductivity, can form stable electrical connection with heating pipe body through power supply terminal, reduces the transmission loss of electric energy, improves the power supply efficiency, thereby ensures that the heating performance of heating pipe body is more stable when working.

[0089] The utility model discloses the effective fixation of hoop cavity to electric heating wire, avoids the looseness or displacement of electric heating wire in the working process because of factors such as vibration, stress or thermal expansion, guarantees the heating effect and working stability of electric heating wire, and electric heating wire is in close contact with heating pipe body, and the position of electric heating wire is effectively fixed through the action of hoop cavity, so that electric heating wire can uniformly transfer heat to heating pipe body, improves the heat conduction efficiency and heating uniformity, and reduces energy loss. BRIEF DESCRIPTION OF DRAWINGS

[0090] Figure 1 It is the schematic diagram of the locking structure of heating pipe.

[0091] Figure 2 It is the sectional view of the locking structure of heating pipe.

[0092] Figure 3 It is the exploded view of the locking structure of heating pipe.

[0093] Figure 4 It is the schematic diagram of the locking structure of heating pipe.

[0094] Figure 5 Schematic view of the locking structure of the heating pipe (with a locking hoop).

[0095] Figure 6 Schematic view of the locking hoop of the locking structure of the heating pipe. DETAILED DESCRIPTION

[0096] The utility model will be further described in connection with the drawings and embodiments:

[0097] Embodiments, in conjunction with Figures 1 to 6 As shown in the figure, a locking structure of a heating pipe comprises a heating pipe body 1, a locking hoop 2 and a rivet 3, one end of the heating pipe body 1 is a water inlet 11, the other end of the heating pipe body 1 is a water outlet 12, the water inlet 11 and the water outlet 12 communicate with the inner cavity of the heating pipe body 1, and the heating pipe body 1 heats water passing through the water channel.

[0098] The locking hoop 2 is provided with a clamping cavity 21 for clamping the heating pipe body 1, an upper clamping sheet 22 and a lower clamping sheet are arranged at the inlet of the clamping cavity 21, and an opening 24 for the heating pipe body 1 to pass through is formed between the upper clamping sheet 22 and the lower clamping sheet.

[0099] The heating pipe body 1 enters the clamping cavity 21 through the opening 24, the rivet 3 closes the opening 24 and locks the clamping cavity 21 by passing through the upper clamping sheet 22 and the lower clamping sheet 23, thereby reducing the size of the clamping cavity 21 to clamp the heating pipe body 1 in the clamping cavity 21.

[0100] Further, the upper clamping sheet 22 and the lower clamping sheet 23 are both provided with through holes 25 for the rivet 3 to pass through.

[0101] Further, the upper clamping sheet 22 is provided with a power supply terminal 4 at the end, the power supply terminal 4 is electrically connected with the heating pipe body 1, an external power supply supplies power to the heating pipe body 1 through the power supply terminal 4 to make the heating pipe body 1 work to heat water passing through the water channel.

[0102] Further, it further comprises a spiral body, the diameter of the spiral body is smaller than the inner diameter of the heating pipe body 1, the spiral body is fixed in the inner cavity of the heating pipe body 1, and a water channel for guiding the directional flow of water is formed between the inner wall of the heating pipe body 1 and the spiral body.

[0103] Further, the spiral body is a screw rod 5, the length of the screw rod 5 is less than or equal to the length of the heating pipe body 1, and a water channel 51 for guiding the radial flow of water along the heating pipe body 1 is formed between the threads of the screw rod 5 and the inner wall of the heating pipe body 1.

[0104] Further, the heating pipe body 1 comprises a hollow conduit 6 for water passing, an insulation layer 7 and an electric heating wire 8, the hollow conduit 6 is peripherally provided with the insulation layer 7;

[0105] The electric heating wire 8 is wound on the insulation layer 7, the clamping cavity 21 clamps the electric heating wire 8, and the electric heating wire 8 is electrically connected with the power supply terminal 4;

[0106] The electric heating wire 8 generates heat when electrified, the heat heats the hollow conduit 6 through the insulation layer 7, and the hollow conduit 6 generates heat to heat the water passing through the hollow conduit 6.

[0107] Further, the hollow conduit 6 is a hollow metal pipe.

[0108] In other embodiments, the heating pipe body 1 comprises a hollow conduit 6 for water passing, an insulation layer 7 and an electromagnetic coil, the hollow conduit 6 is peripherally provided with the insulation layer 7;

[0109] The electromagnetic coil is wound on the insulation layer 7, the clamping cavity 21 clamps the electromagnetic coil, and the electromagnetic coil is electrically connected with the power supply terminal 4;

[0110] The electromagnetic coil generates a changing magnetic field when electrified, the changing magnetic field penetrates the hollow conduit 6 to induce eddy current, and the eddy current in the hollow conduit 6 generates heat due to the resistance of metal to heat the water passing through the hollow conduit 6.

[0111] In other embodiments, the heating pipe body 1 comprises a hollow conduit 6 for water passing, an insulation layer 7 and an electric heating film, the hollow conduit 6 is peripherally provided with the insulation layer 7;

[0112] The electric heating film is wound on the insulation layer 7, the clamping cavity 21 clamps the electric heating film, and the electric heating film is electrically connected with the power supply terminal 4;

[0113] The electric heating film generates heat when electrified, the heat heats the hollow conduit 6 through the insulation layer 7, and the hollow conduit 6 generates heat to heat the water passing through the hollow conduit 6.

Claims

1. A locking structure of a heating pipe, comprising a heating pipe body, a locking band and a rivet, characterized in that: One end of the heating pipe body is a water inlet, and the other end of the heating pipe body is a water outlet. The water inlet and the water outlet are communicated with the inner cavity of the heating pipe body. The heating pipe body heats water passing through the water channel. The locking hoop is provided with a clamping cavity for clamping the heating pipe body. An upper clamping piece and a lower clamping piece are arranged at the inlet of the clamping cavity. An opening is formed between the upper clamping piece and the lower clamping piece, and the heating pipe body passes through the opening. The heating pipe body passes through the opening and enters the clamping cavity. The rivet passes through the upper clamping piece and the lower clamping piece to close the opening and lock the clamping cavity, thereby reducing the size of the clamping cavity to clamp the heating pipe body.

2. The locking structure of the heating tube according to claim 1, wherein: The upper clamping piece and the lower clamping piece are each provided with a through hole through which the rivet passes.

3. The locking structure of the heating tube according to claim 1, wherein: The end of the upper clamping piece is provided with a power supply terminal. The power supply terminal is electrically connected with the heating pipe body. An external power supply supplies power to the heating pipe body through the power supply terminal to make the heating pipe body work to heat water passing through the water channel.

4. The locking structure of the heating tube according to claim 1, wherein: The spiral body is fixed in the inner cavity of the heating pipe body. A water channel for guiding the directional flow of water is formed between the inner wall of the heating pipe body and the spiral body.

5. The locking structure of the heating tube according to claim 4, wherein: The spiral body is a screw rod. The length of the screw rod is less than or equal to the length of the heating pipe body. A water channel for guiding the radial flow of water along the heating pipe body is formed between the threads of the screw rod and the inner wall of the heating pipe body.

6. The locking structure of the heating tube according to claim 3, wherein: The heating pipe body comprises a hollow conduit for water passing through, an insulation layer and an electromagnetic coil. The hollow conduit is provided with the insulation layer on the periphery. The electromagnetic coil is wound on the insulation layer. The clamping cavity clamps the electromagnetic coil. The electromagnetic coil is electrically connected with the power supply terminal. The electromagnetic coil generates a changing magnetic field when energized, which induces eddy current in the hollow conduit. The eddy current in the hollow conduit generates heat due to the electrical resistance of the metal, which heats the water passing through the hollow conduit.

7. The locking structure of the heating tube according to claim 3, wherein: The heating pipe body comprises a hollow conduit for water passing through, an insulation layer and an electric heating film. The hollow conduit is provided with the insulation layer on the periphery. The electric heating film is wound on the insulation layer. The clamping cavity clamps the electric heating film. The electric heating film is electrically connected with the power supply terminal. The electric heating film generates heat when energized. The heat heats the hollow conduit through the insulation layer. The heat generated by the hollow conduit heats the water passing through the hollow conduit.

8. The locking structure of the heating tube according to claim 3, wherein: The heating pipe body comprises a hollow conduit for water passing through, an insulation layer and an electric heating wire. The hollow conduit is provided with the insulation layer on the periphery. The electric heating wire is wound on the insulation layer. The clamping cavity clamps the electric heating wire. The electric heating wire is electrically connected with the power supply terminal. The electric heating wire generates heat when energized. The heat heats the hollow conduit through the insulation layer. The heat generated by the hollow conduit heats the water passing through the hollow conduit.

9. The locking structure of a heating tube according to any one of claims 6 to 8, wherein: The hollow conduit is a hollow metal pipe.

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