Heating pipe with protection structure for water heater

By introducing a laser thermometer and a protective structure for the drive motor into the heating element of the water heater, the problem of spontaneous combustion due to dry burning is solved, thereby improving safety and lifespan. Furthermore, the structure is designed for easy disassembly and cleaning, which increases efficiency and reduces maintenance costs.

CN223976219UActive Publication Date: 2026-03-06NINGBO ZHENHAI YUANTAI ELECTRIC HEATING ELECTRICAL APPLIANCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing water heater heating elements lack effective dry-burn protection structures, which can easily lead to dry-burning and spontaneous combustion accidents when there is no water or the water level is too low, affecting the safety and lifespan of the water heater.

Method used

A protective structure is installed inside the heating tube, which works in conjunction with a laser thermometer and a drive motor. The power supply is automatically cut off when abnormal temperature is detected. The design also includes easily disassembled support blocks and limit blocks to facilitate the cleaning of scale. A shock-absorbing wrapping ring is used to improve connection stability.

Benefits of technology

It effectively prevents dry-burning and spontaneous combustion accidents, improves safety and lifespan, and facilitates scale removal, improves heating efficiency and disassembly efficiency, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heating pipe with a protection structure for a water heater, which comprises a support block and a heating pipe body connected with the left side of the support block, and a support frame is arranged on the outer side of the heating pipe body; the device is characterized by further comprising a transmission line, the transmission line is installed in the supporting block, the inner side of the transmission line is connected with an interface, and a damper is nested in the middle of the transmission line. According to the heating pipe with the protection structure for the water heater, the effective empty burning protection structure is arranged in the device, so that accidents such as empty burning, spontaneous combustion and the like of the device due to no water or too low water level are not easily caused, the use safety of the device is prevented from being influenced, and the service life of the device is prolonged; and meanwhile, after the device is used, the device can be conveniently and rapidly detached and cleaned, so that a large amount of scale is not prone to being accumulated on the surface of the heating pipe due to long-time use, the heating effect of the device is prevented from being affected by the scale, the heating efficiency of the device is improved, and the better use effect is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically to a heating element for a water heater with a protective structure. Background Technology

[0002] A heating element for a water heater is a tubular electric heating element, mainly composed of a metal tube, a resistance wire, and crystalline magnesium oxide powder. Its working principle is that heat is generated by an electric current passing through the resistance wire. The heat is then transferred through the magnesium oxide powder to the surface of the metal tube, and then to the medium being heated, such as…

[0003] Authorization announcement number CN210320681U discloses an easy-to-install heating element for water heaters, relating to the field of water heater technology. This easy-to-install heating element includes a heating element body with a mounting bracket at its bottom. Multiple circular holes are evenly distributed along the edge of the mounting bracket's upper surface, and L-shaped rods are embedded in each hole. The other ends of the L-shaped rods are welded to mounting tubes. This easy-to-install heating element, through its mounting tube, mounting bracket, L-shaped rods, and nuts, simplifies installation by connecting the mounting tube to the inner wall of the water heater, placing the mounting bracket on the mounting tube, and tightening the nut. Furthermore, the connecting pipe and high-temperature resistant gasket ensure leak-proof protection at the heating element body end, eliminating concerns about leakage at this end when connecting the device to other pipes, thus facilitating heating element installation.

[0004] However, existing water heater heating elements do not have an effective dry-burn protection structure inside the device, which makes the device prone to accidents such as dry-burning and spontaneous combustion due to no water or low water level, thus affecting the safety of the device and reducing its service life.

[0005] Therefore, in order to address the above problems, there is an urgent need for innovative designs based on the existing heating elements used in water heaters. Utility Model Content

[0006] The purpose of this utility model is to provide a heating tube for a water heater with a protective structure to solve the problem mentioned in the background art that the device does not have an effective dry-burn protection structure inside, which makes the device prone to accidents such as dry-burning and spontaneous combustion due to lack of water or low water level, thus affecting the safety of the device and reducing its service life.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a heating tube for a water heater with a protective structure, comprising: a support block, and a heating tube body connected to the left side of the support block, wherein a support frame is provided on the outer side of the heating tube body;

[0008] Its characteristic is that it further includes:

[0009] A transmission line is installed inside the support block, and an interface is connected to the inner side of the transmission line. A damper is nested in the middle of the transmission line, and a guide block is provided on the right side of the interface.

[0010] A cutting plate is located on the left side of the interface. A second drive rod is connected to the upper side of the cutting plate, and a second guide rod is connected to the lower side of the cutting plate. A drive motor is located on the left side of the second drive rod, and a laser thermometer is connected to the left side of the drive motor. A second sealing ring is located on the left side of the support frame, and a positioning rod is installed inside the second sealing ring. The water heater body is located on the outer side of the support block, and a disassembly and assembly assembly is located on the right side of the water heater body. A shock-absorbing protection assembly is located inside the left side of the water heater body.

[0011] In one possible implementation, the second drive rod is threadedly connected to the cut-off plate, and the cut-off plate is slidably disposed relative to the second guide rod.

[0012] In one possible implementation, the interface and the guide block are all slidably arranged relative to the support block, and the cross-section of the guide block is a "T" shaped structure.

[0013] In one possible implementation, the disassembly and assembly assembly includes a limiting block disposed on the right side of the water heater body, and a first drive rod is connected to the outer side of the limiting block, and a first guide rod is disposed in the middle of the limiting block.

[0014] The limiting block and the support block are engaged relative to each other, and the first drive rod is threadedly connected to the limiting block.

[0015] In one possible implementation, the limiting block is slidably disposed relative to the first guide rod, and the limiting block is symmetrically disposed about the central axis of the water heater body.

[0016] In one possible implementation, the positioning rod is engaged with the water heater body.

[0017] In one possible implementation, the shock-absorbing wrapping assembly includes a positioning block disposed inside the left side of the water heater body, and a shock-absorbing wrapping ring is installed on the inner side of the positioning block.

[0018] The shock-absorbing wrapping ring and the positioning block are engaged relative to each other, and the positioning block is symmetrically arranged about the central axis of the shock-absorbing wrapping ring.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The heating element for the water heater with a protective structure has an effective dry-burn protection structure inside the device, making it less prone to accidents such as dry-burning and spontaneous combustion due to lack of water or low water level, thus avoiding affecting the safety of the device and extending its service life. At the same time, it facilitates quick disassembly and cleaning after use, preventing the accumulation of scale on the surface of the heating element over a long period, avoiding the impact of scale on the heating effect, improving the heating efficiency, and resulting in a better performance. Specifically, as shown below:

[0020] 1. The laser thermometer, in conjunction with the drive motor, pushes the second drive rod to rotate inside the support block. This causes the second drive rod to push the cut-off plate connected to its lower side to move to the right along the second guide rod, separating the upper and lower connecting interfaces. At this time, the power transmitted by the transmission line is interrupted, preventing the device from spontaneously combusting due to lack of water or low water level, thus avoiding affecting the safety of the device and improving its service life.

[0021] 2. The first drive rod, in conjunction with the first guide rod, drives the limiting block to move outward, thereby relaxing the limiting block's fixation on the support block. This makes it easier for the operator to pull the support block and heating tube body to the right, and also makes it easier for the operator to clean the scale accumulated on the surface of the heating tube body due to long-term use, thus preventing the heating efficiency of the heating tube body from being affected by the scale accumulated on its surface.

[0022] 3. By using the positioning block in conjunction with the water heater body, the shock-absorbing ring is fixed to the inside of the left side of the water heater body. This allows the shock-absorbing ring to fill and wrap the gap between the support frame and the water heater body. At this time, due to the shock-absorbing protection effect of the shock-absorbing ring, the high-frequency vibration generated by the device during operation is less likely to affect the connection stability between the support block and the support frame and the water heater body, thereby improving the connection strength between the support block and the water heater body. Attached Figure Description

[0023] Figure 1 This is a frontal cross-sectional view of the present invention.

[0024] Figure 2 This is a side view sectional structural diagram of the present invention;

[0025] Figure 3 This is a top view sectional structural diagram of the present invention;

[0026] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 5This is a schematic diagram of the overall cross-sectional structure of the connection between the positioning block and the shock-absorbing wrapping ring of this utility model;

[0028] Figure 6 This is a schematic cross-sectional view of the connection between the cut-off plate and the second drive rod of this utility model.

[0029] In the diagram: 1. Water heater body; 2. Positioning block; 3. Shock-absorbing wrapping ring; 4. Support block; 5. Limiting block; 6. First drive rod; 7. First guide rod; 8. Transmission line; 9. Interface; 10. Damper; 11. Guide block; 12. Cut-off plate; 13. Second drive rod; 14. Second guide rod; 15. Drive motor; 16. Laser thermometer; 17. First sealing ring; 18. Heating element body; 19. Support frame; 20. Second sealing ring; 21. Positioning rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-6 This utility model provides a technical solution: a heating tube for a water heater with a protective structure, including a water heater body 1, a positioning block 2, a shock-absorbing wrapping ring 3, a support block 4, a limiting block 5, a first drive rod 6, a first guide rod 7, a transmission line 8, an interface 9, a damper 10, a guide block 11, a cut-off plate 12, a second drive rod 13, a second guide rod 14, a drive motor 15, a laser thermometer 16, a first sealing ring 17, a heating tube body 18, a support frame 19, a second sealing ring 20, and a positioning rod 21.

[0032] Specifically, such as Figure 1 , Figure 4 and Figure 6As shown, during the use of the device, electricity is transmitted to the interior of the support block 4 via a connecting cable. At this time, the electricity is transmitted through the transmission line 8 inside the support block 4 to the interior of the heating tube body 18 connected to the left side of the support block 4. This causes a large amount of heat to be generated when the current passes through the heating tube body 18. Due to the thermal conductivity of the heating tube body 18, the liquid stored inside the water heater body 1 absorbs the large amount of heat generated by the heating tube body 18 through heat exchange. Simultaneously, when there is no liquid stored inside the water heater body 1 or the water level is too low, the heat generated by the heating tube body 18 is not effectively conducted to the outside, causing the temperature of the heating tube body 18 to gradually rise, resulting in dry burning. At this time, the laser thermometer 16 connected to the left side of the drive motor 15 monitors the internal temperature of the water heater body 1 in real time. When the laser thermometer 16 detects an abnormal temperature, it automatically starts the drive motor 15 connected to its right side. The drive motor 15 then drives the second drive motor connected to its right side. The rod 13 rotates inside the support block 4. Due to the threaded connection between the second drive rod 13 and the cut-off plate 12, the rotating second drive rod 13 can effectively push the cut-off plate 12 connected to its lower side to move to the right. At this time, due to the sliding connection between the cut-off plate 12 and the second guide rod 14, the cut-off plate 12 is guided and limited by the second guide rod 14 during the movement to the right. Through the movement stability of the cut-off plate 12, the cut-off plate 12 moving to the right pushes the interface 9, which is in symmetrical contact with the upper and lower parts, to move outward relative to the damper 10 along the guide block 11 set on its right side. This causes the cut-off plate 12 to separate the interface 9. At this time, the power transmitted by the transmission line 8 is cut off, causing the heating tube body 18 to lose power drive and stop generating heat. This completes the dry-burn protection of the device, avoiding accidents such as dry-burning and spontaneous combustion of the device due to no water or low water level, avoiding affecting the safety of the device and improving the service life of the device.

[0033] Specifically, such as Figure 2 , Figure 3 and Figure 5As shown, after the device is used, by rotating the first drive rod 6 located on the right side of the water heater body 1, the threaded connection between the first drive rod 6 and the limiting block 5 allows the rotating first drive rod 6 to effectively drive the limiting block 5 connected to its inner side to move outward. Due to the sliding connection between the limiting block 5 and the first guide rod 7, the outwardly moving limiting block 5 is guided and limited by the first guide rod 7, preventing the limiting block 5 from shifting position during movement. This facilitates the operator pulling the support block 4 to the right, causing the support block 4 and the heating tube body 18 connected to its left side to detach from the interior of the water heater body 1. This allows the operator to clean the scale accumulated on the surface of the heating tube body 18 due to prolonged use, preventing the scale from affecting the heating tube body 18. To improve heating efficiency, the cleaned support block 4 is reinstalled on the surface of the water heater body 1 along the positioning rod 21 on the left side of the support frame 19. This allows the second sealing ring 20 to work with the first sealing ring 17 on the right side of the water heater body 1 to seal the connection gap between the support block 4 and the water heater body 1. Simultaneously, the first drive rod 6 on the right side of the water heater body 1 is rotated in the opposite direction, causing the first drive rod 6 to push the limiting block 5 connected to its inner side to move inward along the first guide rod 7 and reset. Due to the engaging connection structure between the limiting block 5 and the support block 4, the limiting block 5 reinstalls the support block 4 inside the water heater body 1. This completes the quick disassembly and cleaning of the device, improves disassembly and cleaning efficiency, reduces the maintenance and repair costs of the device, and prevents the heating efficiency of the device from being affected by scale.

[0034] Secondly, before installing the support block 4, the shock-absorbing ring 3 is installed inside the water heater body 1 along the positioning block 2 set inside the left side of the water heater body 1. At this time, due to the snap-fit ​​connection structure between the positioning block 2 and the shock-absorbing ring 3, the positioning block 2 can stably fix the shock-absorbing ring 3 inside the water heater body 1. Then, the support block 4 is installed inside the water heater body 1. At this time, the shock-absorbing ring 3 wraps the support frame 19 set on the left side of the support block 4 inside it, so that the shock-absorbing ring 3 fills and wraps the connection gap between the support frame 19 and the water heater body 1. At this time, due to the shock-absorbing protection effect of the shock-absorbing ring 3, the high-frequency vibration generated by the device during operation is less likely to affect the connection stability between the support block 4 and the support frame 19 and the water heater body 1, thereby improving the connection strength between the support block 4 and the water heater body 1.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heating tube for water heaters with a protective structure, comprising: Support block (4), and the heating pipe body (18) connected to the left side of the support block (4), and the outer side of the heating pipe body (18) is provided with a support frame (19); It is characterized in that further comprising: The transmission line (8) is installed in the inside of the support block (4), and the inner side of the transmission line (8) is connected with an interface (9), the middle part of the transmission line (8) is nested with a damper (10), and the right side of the interface (9) is provided with a guide block (11); The cutting plate (12) is provided on the left side of the interface (9), the upper side of the cutting plate (12) is connected with a second drive rod (13), and the lower side of the cutting plate (12) is connected with a second guide rod (14), the left side of the second drive rod (13) is provided with a drive motor (15), and the left side of the drive motor (15) is connected with a laser temperature measuring instrument (16), the left side of the support frame (19) is provided with a second sealing rubber ring (20), and the inner side of the second sealing rubber ring (20) is installed with a positioning rod (21), the outer side of the support block (4) is provided with a water heater body (1), and the right side of the water heater body (1) is provided with a disassembly assembly, and the left side of the water heater body (1) is provided with a shock protection assembly.

2. The heating tube with protective structure for water heater according to claim 1, characterized in that: The second drive rod (13) is threadedly connected with the cutting plate (12), and the cutting plate (12) is slidably arranged opposite to the second guide rod (14).

3. The heating tube with protective structure for water heater according to claim 1, characterized in that: The interface (9) and the guide block (11) are slidably arranged opposite to the support block (4), and the cross section of the guide block (11) is "T" shaped structure.

4. The heating tube with protective structure for water heater according to claim 1, characterized in that: The disassembly assembly comprises a limiting block (5) provided on the right side of the water heater body (1), and the outer side of the limiting block (5) is connected with a first drive rod (6), and the middle part of the limiting block (5) is provided with a first guide rod (7); The limiting block (5) is snap-fitted opposite to the support block (4), and the first drive rod (6) is threadedly connected with the limiting block (5).

5. The heating tube with protective structure for water heater according to claim 4, characterized in that: The limiting block (5) is slidably arranged opposite to the first guide rod (7), and the limiting block (5) is symmetrically arranged about the center axis of the water heater body (1).

6. The heating tube with protective structure for water heater according to claim 1, characterized in that: The positioning rod (21) is snap-fitted opposite to the water heater body (1).

7. The heating tube with protective structure for water heater according to claim 1, characterized in that: The shock protection assembly comprises a positioning block (2) provided in the left side of the water heater body (1), and the inner side of the positioning block (2) is installed with a shock absorbing wrapping ring (3); The shock absorbing wrapping ring (3) is snap-fitted opposite to the positioning block (2), and the positioning block (2) is symmetrically arranged about the center axis of the shock absorbing wrapping ring (3).

Citation Information

Patent Citations

  • Water heater heating pipe convenient to install

    CN210320681U