Frost crack prevention instant heating device
By using an elastic sealing cap and buffer rod structure to disperse ice expansion stress in the instant heating device, and combining it with active heat dissipation, the problem of water pipe rupture caused by ice expansion is solved, thus achieving the reliability and durability of the device.
Patent Information
- Application Number
- CN202520476947.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-18
AI Technical Summary
In low-temperature environments, instant heating devices are prone to internal stress caused by water freezing in the water pipes, which may lead to pipe cracking or damage, affecting the normal use of the smart toilet and increasing maintenance costs.
A freeze-crack prevention and instant heating device was designed, which adopts an elastic sealing cover and a buffer rod structure. The buffer rod gradually shrinks along the axial direction to disperse the stress when ice expands, and absorbs internal stress through elastic deformation. Combined with the hollow part, it can actively dissipate heat to reduce the temperature of the thyristor and prevent device damage.
It effectively prevents water pipes from cracking due to ice expansion, ensuring the continuous use of the device, and reduces the risk of high temperature through active heat dissipation, thus extending the device's lifespan.
Smart Images
Figure CN223814794U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to instant heating device technical field especially relates to a kind of anti-freezing instant heating device. BACKGROUND
[0002] Instant heating device in intelligent toilet is the key component for providing instant hot water flushing. Instant heating device ensures that users can quickly obtain hot water of suitable temperature when using by instant heating water flow, which improves user experience and energy efficiency. Instant heating device includes but is not limited to heating element, water flow sensor, temperature sensor, control unit and water flow pipeline.
[0003] When the user starts the flushing function, the water flow sensor detects the water flow, and the control unit starts the heating element. The water flow is rapidly heated by the heating element, and the temperature sensor monitors the water temperature in real time. The control unit adjusts the heating power according to the set temperature to ensure constant water temperature.
[0004] In low-temperature environment areas or countries, there may be water icing problems in the water flow pipeline of the instant heating device. Since the volume of water expands during the ice formation process, it will generate a large internal stress. If these stresses cannot be effectively released, it will cause the water flow pipeline to bear excessive pressure, and then cause the water flow pipeline to burst or be damaged. This problem not only affects the normal use of the intelligent toilet, but also may cause equipment failure and increase maintenance costs. SUMMARY
[0005] To solve the above problems of the prior art, the utility model provides an anti-freezing instant heating device, which can effectively solve the above problems of the prior art.
[0006] The technical solution of the utility model is:
[0007] According to one aspect of the utility model, it comprises: an instant heating device body, a water inlet pipe is arranged at one end of the instant heating device body, and a water outlet pipe is arranged at the other end; a water flow pipeline for allowing water flow is arranged between the water inlet pipe and the water outlet pipe; a heating pipe is inserted into the water flow pipeline; an elastic sealing cover is used to seal the water flow pipeline; the elastic sealing cover is arranged on the opening of the water flow pipeline; and a buffer rod is arranged at one end of the elastic sealing cover extending towards the heating pipe.
[0008] Further, the buffer rod gradually decreases along its axial direction, and the end of the buffer rod away from the opening is a thin end, and the other end is a thick end.
[0009] Further, the opening edge of the water flow pipeline is provided with a mounting groove for mounting the elastic sealing cover.
[0010] Further, the elastic sealing cover is made of silica gel.
[0011] Further, the elastic sealing cover is integrally formed with the buffer rod.
[0012] Further, a cover plate is detachably arranged on the opening of the water flow pipe, and one end of the cover plate extends towards the outer circumferential surface of the water flow pipe and is provided with a mounting plate, and one end of the mounting plate is connected to the thyristor.
[0013] Further, a plurality of screws are arranged between the cover plate and the water flow pipe.
[0014] Further, a plurality of hollow parts are distributed along the outer circumferential surface of the buffer rod.
[0015] Further, a first spring is sleeved on the outer circumferential surface of the buffer rod.
[0016] Further, a second spring is sleeved on the outer circumferential surface of the heating pipe.
[0017] Compared with the prior art, the technical scheme has the beneficial effects that:
[0018] Firstly, when the water in the water flow pipe expands due to ice, the buffer rod can absorb the internal stress generated by the expansion through its own deformation, thereby avoiding stress concentration and pipe rupture; when the water in the water flow pipe expands due to ice, the pressure generated by the volume increase acts on the elastic sealing cover and the buffer rod. After the ice melts, the buffer rod returns to its original state under the action of the material resilience, ensuring that the device can be used continuously.
[0019] Secondly, the structure from thick to thin can disperse the concentrated stress generated when the ice expands, avoid the formation of stress concentration points at the thin end due to sudden changes in cross-sectional area, and reduce the risk of fracture. The thick end provides stable support, and the thin end absorbs energy through elastic deformation. The combination of the two makes the stress smoothly transition along the buffer rod, reducing the risk of the buffer rod breaking itself.
[0020] Thirdly, the open structure of the hollow part allows the water to directly contact the cover plate, actively cools the thyristor and the surrounding high-temperature area by using the heat conduction of the flowing water, effectively reduces the working temperature of the thyristor, and avoids performance degradation or device damage caused by long-term high temperature. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.
[0022] Figure 1 It is an explosion structure schematic diagram of the present application.
[0023] Figure 2 It is the cross section structure schematic view of the utility model;
[0024] Figure 3 It is the three-dimensional structure schematic view of the elastic sealing cover in the utility model;
[0025] Figure 4 It is the plane structure schematic view of the elastic sealing cover in the utility model;
[0026] Figure 5 It is the structure schematic view of water flow direction in the utility model;
[0027] Figure 6 It is the three-dimensional structure schematic view of the utility model Figure 1 ;
[0028] Figure 7 It is the three-dimensional structure schematic view of the utility model Figure 2 ;
[0029] In the drawing: instant heating device body-1, water inlet pipe-11, water outlet pipe-12, thyristor-13, water flow pipeline-2, opening-20, mounting groove-21, heating pipe-3, elastic sealing cover-4, buffer rod-41, thick end-411, thin end-412, hollow part-42, cover plate-5, screw-6, first spring-7, second spring-8. DETAILED DESCRIPTION
[0030] The utility model will be described further in detail below in combination with the drawings and embodiments. It is particularly pointed out that the following embodiments are only used for illustrating the utility model, but do not limit the scope of the utility model. Similarly, the following embodiments are only part of the embodiments of the utility model and not all the embodiments, and all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.
[0031] As shown in the figure, the present scheme provides a kind of anti-freezing instant heating device. Figures 1 to 7
[0032] Please see Figures 1 to 7 The instant heating device body 1 is provided with a water inlet pipe 11 at one end and a water outlet pipe 12 at the other end, and a water flow pipe 2 is arranged between the water inlet pipe 11 and the water outlet pipe 12 to allow water flow. A heating pipe 3 is inserted into the water flow pipe 2. An elastic sealing cover 4 is arranged to seal the water flow pipe 2. Preferably, the elastic sealing cover 4 is made of silica gel. The elastic sealing cover 4 covers the opening 20 of the water flow pipe 2. Specifically, the edge of the opening 20 of the water flow pipe 2 is provided with a mounting groove 21 for mounting the elastic sealing cover 4. A cover plate 5 is further arranged. Specifically, the cover plate 5 is made of copper. The cover plate 5 is detachably arranged on the opening 20 of the water flow pipe 2. One end of the cover plate 5 extends outwardly from the peripheral surface of the water flow pipe 2 and is provided with a mounting plate 51. One end of the mounting plate 51 is connected to a thyristor 13. A plurality of screws 6 are arranged between the cover plate 5 and the water flow pipe 2. The cover plate 5 is fixedly mounted on the opening 20 of the water flow pipe 2 by the plurality of screws 6. The device is convenient to disassemble and assemble. The elastic sealing cover 4 is provided with a plurality of hollow parts 42 distributed along the outer periphery of a buffer rod 41. In this embodiment, the number of hollow parts 42 is four. The four hollow parts 42 are equally spaced and arranged in a ring shape along the outer periphery of the buffer rod 41. The open structure of the hollow parts 42 allows water to directly contact the cover plate 5. The heat conduction of the flowing water body actively cools the thyristor 13 and the surrounding high-temperature area, effectively reduces the working temperature of the thyristor 13, and avoids performance degradation or device damage caused by long-term high temperature.
[0033] Please refer to Figures 1 to 5 , and one end of the elastic sealing cover 4 extends towards the heating pipe 3 and is provided with a buffer rod 41. The buffer rod 41 gradually decreases along its axial direction. One end of the buffer rod 41 away from the opening 20 is a thin end 111, and the other end is a thick end 112. Preferably, the elastic sealing cover 4 and the buffer rod 41 are integrally formed. The structure from thick to thin can disperse the concentrated stress generated when the ice expands, avoid the stress concentration point formed by the sudden change of the cross-sectional area of the thin end 111, which is easy to cause fracture, and the thick end 112 provides stable support. The thin end 111 absorbs energy through elastic deformation, and the combination of the two makes the stress smoothly transition along the buffer rod 41, reducing the risk of breakage of the buffer rod 41 itself. When the water in the water flow pipe 2 freezes and expands, the buffer rod 41 can absorb the internal stress generated by the expansion through its own deformation, avoiding pipe rupture caused by stress concentration. When the water in the water flow pipe 2 freezes and expands, the pressure generated by the increase in volume acts on the elastic sealing cover 4 and the buffer rod 41. After the ice melts, the buffer rod 41 restores to its original state under the action of the material resilience, ensuring that the device can be used continuously.
[0034] Please refer to Figure 2 and Figure 5The first spring 7 is sleeved on the outer periphery of the buffer rod 41, and the periodic corrugated surface of the first spring 7 can exert a transverse shear force on the water flow, destroy the laminar boundary layer and induce the generation of turbulent flow. The second spring 8 is sleeved on the outer periphery of the heating pipe 3. The second spring 8 is arranged around the heating pipe 3, and the water flow is guided to move along a spiral track through an axial spiral gap, so that the cold and hot water bodies are fully mixed during the flow process. By arranging the first spring 7 and the second spring 8, a directional vortex effect is formed in the water flow pipeline 2; in addition, the spring structure not only provides mechanical buffering, but also further reduces the cavitation risk by dynamically adjusting the water flow path.
[0035] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A freeze proof instant heating device comprising: The instant heating device body (1) is provided with a water inlet pipe (11) at one end and a water outlet pipe (12) at the other end, a water flow pipe (2) is arranged between the water inlet pipe (11) and the water outlet pipe (12) to allow water flow, a heating pipe (3) is arranged in the water flow pipe (2), characterized in that it further comprises an elastic sealing cover (4) for sealing the water flow pipe (2), the elastic sealing cover (4) covers the opening (20) of the water flow pipe (2), and one end of the elastic sealing cover (4) extends towards the heating pipe (3) and is provided with a buffer rod (41).
2. An anti-freezing instant heating device according to claim 1, wherein The buffer rod (41) gradually reduces in the axial direction, and the end of the buffer rod (41) away from the opening (20) is a thin end (111), and the other end is a thick end (112).
3. An anti-freezing instant heating device according to claim 1, wherein The opening (20) of the water flow pipe (2) is provided with a mounting groove (21) for mounting the elastic sealing cover (4).
4. An anti-freezing instant heating device according to claim 1, wherein The elastic sealing cover (4) is made of silica gel.
5. An anti-freezing instant heating device according to claim 1, wherein The elastic sealing cover (4) and the buffer rod (41) are integrally formed.
6. An anti-freezing instant heating device according to claim 1, wherein Further comprising a cover plate (5) which is detachably arranged on the opening (20) of the water flow pipe (2), and one end of the cover plate (5) extends towards the outer circumferential surface of the water flow pipe (2) and is provided with a mounting plate (51), and one end of the mounting plate (51) is connected to the thyristor (13).
7. An anti-scald instant heating device as defined in claim 6, wherein A plurality of screws (6) are arranged between the cover plate (5) and the water flow pipe (2).
8. An anti-scald instant heating device as defined in claim 6, wherein The elastic sealing cover (4) is provided with a plurality of hollow parts (42) distributed along the outer periphery of the buffer rod (41).
9. An anti-scald instant heating device as defined in claim 1, wherein Further comprising a first spring (7) which is sleeved on the outer periphery of the buffer rod (41).
10. The freeze-proof instant heating device according to claim 1, wherein Further comprising a second spring (8) which is sleeved on the outer periphery of the heating pipe (3).