Water purifier with hot water pipe

Abstract

This utility model discloses a water purifier with a hot water pipe. The hot water pipe has an external heating device, and hot water is supplied to the user through a spout. Inside the hot water pipe are two springs: a larger diameter spring and a smaller diameter spring. The smaller diameter spring is nested inside the larger diameter spring, but a portion of its diameter is not smaller than that of the larger diameter spring, forming an interference fit with the pipe wall. In the direction of hot water flow, the axial length of the smaller diameter spring exceeds that of the larger diameter spring. This utility model eliminates the need for a water vapor separator, achieving water vapor separation without compromising the hot water flow rate, resulting in a stable water output pattern.

Description

Technical Field

[0001] This utility model belongs to the field of water purifier technology, and in particular relates to a water purifier with a hot water pipe. Background Technology

[0002] Most modern water purifiers come with a heating function. The filtered water can be dispensed at room temperature or heated. Obviously, a hot water pipe is needed in the water purifier to provide the heated water to the user. However, heated water inevitably contains air bubbles. The presence of air bubbles causes the hot water to flow out of the spout in an unstable pattern, such as a fan-shaped flow or splashing. This not only affects the appearance but also poses a risk of scalding the user.

[0003] To address this issue in existing technologies, a water vapor separator is installed in the hot water pipe to allow gas in the hot water to escape without affecting the water flow pattern. The applicant has previously applied for several patents in this area, such as CN210204462U, which discloses a water vapor separator in an instant hot water dispenser. This separator includes a box body with a hollow structure, an inlet on one side, and an outlet at the bottom. The bottom surface of the box body is an inverted cone shape, with the outlet located at the lowest point of the cone. The box body also includes an exhaust channel formed by a baffle plate. The exhaust channel is cylindrical, with an air inlet at the top and an exhaust outlet at the bottom. The air inlet at the top of the exhaust channel is higher than the water inlet. It has an exhaust channel inside the water vapor separation box. The exhaust channel is in a circular shape, separating the incoming hot water and water vapor. The air inlet at the top of the exhaust channel is higher than the water inlet, which prevents hot water from directly entering the exhaust channel. The exhaust pipe can also block the impact of incoming water, so that the water falls directly above the water outlet, reducing the water flow path. The water vapor enters the exhaust channel and is discharged from the exhaust port below.

[0004] For example, CN210582215U discloses a jet-type water vapor separator, including a box body with a hollow structure. One side of the box body has a cold water inlet and a hot water inlet, and the lower end has an outlet. The bottom surface of the box body is an inverted cone shape, with the outlet located at the lowest point of the inverted cone. The box body also has an exhaust channel with an exhaust port at its bottom. The hot water inlet is inclined downwards, with its lowest point connected to the interior of the box body. The inclination angle of the hot water inlet is 8-15 degrees, which is the angle between the hot water inlet and the horizontal line. This structure, with its downward-sloping hot water inlet and inverted cone bottom, allows excess water to fall quickly due to gravity, thus reducing dripping.

[0005] CN216602490U also discloses a water vapor separator, including a box body with a water inlet on one side and a water vapor outlet on the other side. The water inlet and water vapor outlet are connected by a ramp, with the water vapor outlet located at the lowest point of the water vapor separator. A heating device is located next to the water inlet, and the box body is integrally connected to the heating device. Inside the box body is a V-shaped baffle layer, the endpoint of which overlaps with the center of the water vapor outlet, and the two wings extend backward to intersect with the side wall of the box body. The pointed end of the V-shaped baffle layer is hollowed out, and with its endpoint as the center, it forms a circular water outlet with a radius smaller than that of the water vapor outlet. The portion of the water vapor outlet that does not intersect with the V-shaped baffle layer and the water outlet forms a fan-shaped annular exhaust port. This water vapor separator can fully separate water vapor while ensuring that the water flows straight and smoothly under different flow rates, reducing splashing and minimizing safety hazards.

[0006] The principles behind the aforementioned literature and other existing technologies on the market are all based on allowing hot water to linger during the outflow process, combined with the specific shape design of the water-vapor separator to allow the gas in the hot water to escape. The drawbacks of existing technologies are that the flow rate of the hot water decreases after passing through the water-vapor separator; furthermore, the water-vapor separator has a complex structure and high manufacturing costs. Summary of the Invention

[0007] The purpose of this invention is to provide a water purifier with a hot water pipe that does not require a water vapor separator.

[0008] The technical solution adopted by this utility model is as follows: a water purifier with a hot water pipe, the hot water pipe is equipped with a heating device, and the hot water pipe provides hot water to the user through the water outlet; the feature is that: at least one spring is provided inside the hot water pipe, which is interference-fitted with the pipe wall to be locked inside the hot water pipe.

[0009] Furthermore, the hot water pipe is equipped with two springs, one with a larger diameter and the other with a smaller diameter. The smaller diameter spring is nested inside the larger diameter spring, but a portion of its diameter is not smaller than that of the larger diameter spring, and it is interference-fitted with the pipe wall. In the direction of hot water outflow, the axial length of the smaller diameter spring is longer than that of the larger diameter spring.

[0010] The "two-segment spring" described above is an open-ended description; there may also be a third or more springs. For example, a spring with a larger or smaller diameter can be broken into multiple segments, but it still effectively functions as a single spring; another example is the use of multiple nested springs with large, medium, and small diameters.

[0011] A more optimized solution for the above-mentioned double-layered nested spring configuration is to have the two springs rotate in opposite directions. For example, the spring with a larger diameter rotates left-handed while the spring with a smaller diameter rotates right-handed, or vice versa.

[0012] Furthermore, the hot water pipe has a horizontal section and a vertical section. The hot water in the pipe first passes through the horizontal section and then through the vertical section before exiting from the water outlet. All the springs are located within the horizontal section.

[0013] This utility model can also adopt the following technical solution: the water outlet has a vertical through hole for the vertical section of the hot water pipe to pass through; the upper part of the water outlet has a protruding upper limit end, the vertical projection of which overlaps with the hot water pipe; the lower part of the water outlet has a lower limit platform, the vertical projection of which also overlaps with the hot water pipe.

[0014] Through long-term research, the applicant discovered that gases dissolved in pure water exist in the form of microbubbles. Upon heating, these bubbles aggregate to form larger bubbles. This process does not occur suddenly, but rather involves microbubbles first aggregating into smaller bubbles, and then further aggregating into larger bubbles. It is the presence of these larger bubbles that affects the water flow pattern, causing the problems described in the background section; as for the smaller bubbles, they do not actually affect the water flow pattern. Roughly speaking, a particle size of 0.5 mm can be considered a dividing line; only bubbles larger than 0.5 mm affect the water flow pattern.

[0015] The double-nested springs in this invention form a mesh in the water channel. When water containing air bubbles flows through the springs, larger air bubbles are intercepted and absorbed by the mesh, resulting in bubble-free water and effectively separating water and vapor. After remaining on the springs, these larger air bubbles are broken up by the subsequent water flow, becoming smaller bubbles that can then leave the springs, re-enter the water, and flow out through the spout.

[0016] Since larger air bubbles eventually need to be broken up before entering the water, it is important to prevent them from leaving the spring before they break up. Furthermore, when air bubbles are in the vertical section, they are more likely to be lifted off the spring by buoyancy; therefore, this invention further specifies that the spring is entirely located within the horizontal section.

[0017] As can be seen from the above description, the hot water of this utility model does not pass through the water vapor separation box during the water output process. Therefore, the water output is not slowed down, and the hot water can be provided to the user at a high flow rate. In fact, high-speed water output is more conducive to breaking up larger air bubbles adsorbed on the spring, which is more in line with the design purpose of this utility model.

[0018] In addition, this invention retains the gas in the form of small bubbles in the water, so that the hot water flowing from the spout still contains a large number of small bubbles. Visually, this makes the hot water appear to be emitting "white smoke," giving users the psychological feeling that the water temperature is very high, which is more in line with users' psychological expectations.

[0019] In this invention, during installation, a spring is pre-inserted into the horizontal section of the hot water pipe. Then, the vertical section of the hot water pipe is inserted into the vertical through-hole of the outlet at an angle perpendicular to its preset horizontal position, positioning the pipe vertically between the upper and lower limit ends. The pipe is then rotated 90° horizontally to reposition itself between these two points. Thus, once installed, the hot water pipe is vertically constrained by the upper and lower limit ends, preventing vertical swaying; and horizontally constrained by the vertical through-hole of the outlet, preventing lateral or forward / backward displacement. Any oscillation around the vertical through-hole does not affect its vertically downward orientation and therefore does not affect its use. This technical feature ensures that the vertical section of the hot water pipe always remains vertically downward, resulting in a vertical and stable water outlet.

[0020] It is evident that this invention does not require a water vapor separation box and can achieve water vapor separation without damaging the hot water flow rate, resulting in a stable water output pattern. Attached Figure Description

[0021] Figure 1 , Figure 6 This is an exploded view of the present invention.

[0022] Figure 2 This is an assembly diagram of the extension and the water outlet.

[0023] Figure 3 This is a schematic diagram of the water outlet.

[0024] Figure 4 This is a diagram illustrating the hot water pipe installation process.

[0025] Figure 5 This is a cross-sectional view of the water outlet.

[0026] Figure 7 This is a schematic diagram of a spring.

[0027] The attached diagram is labeled as follows: 00-Screw; 1-Mounting nut; 2-Mounting part; 3-Extension part; 4-Water outlet; 41-Water outlet connection part; 42-Water outlet through hole; 43-Upper part of water outlet; 431-Upper limit end; 44-Normal temperature water pipe connection end; 45-Lower limit platform; 46-Inner stepped surface of water outlet; 5-Normal temperature water pipe; 51-Filter screen; 6-Hot water pipe; 60-Heating element; 61-Hot water pipe connection part; 62-Horizontal section of hot water pipe; 63-Vertical section of hot water pipe; 7-Lower housing; 71-Decorative cover; 8-Indication switch; 9-Spring assembly; 91-Large spring; 92-Small spring; 921-Small spring protrusion. Detailed Implementation

[0028] See Figure 1 , Figure 6In this embodiment, the hot water faucet is mounted on the water purifier via the cooperation of the mounting nut 1 and the mounting part 2. The mounting part 2 is vertically arranged, with a horizontally extending extension 3 above it, and the extension 3 is rotatably connected to the mounting part 2. Above the extension is a display switch 8, which is existing technology and has both display and control functions for the on / off of various pipes; details are omitted here. The water in the hot water pipe 6 is preheated hot water, and the heating element 60... Figure 6 As shown in the image.

[0029] The hot water faucet also includes a normal temperature water pipe 5 and a hot water pipe 6, which are laid along the mounting part 2 and the extension part 3, and water flows out through the spout 4, which is fixedly installed at the front end of the extension part 3. The lower housing 7 and the decorative cover 71 cover and hide the water pipes and spout, serving a decorative purpose.

[0030] See Figure 2 , Figure 3 The water outlet 4 has a water outlet connector 41, which is fixedly installed on the lower surface of the extension 3 by screws 00; the hot water pipe 6 has a hot water pipe connector 61, which is also fixedly installed on the lower surface of the extension 3 by screws 00. The water outlet 4 has a vertical through hole 42 for the hot water pipe 6 to pass through; it also has a normal temperature water pipe connector 44 for connecting a normal temperature water pipe 5, and the other end of the normal temperature water pipe connector 44 directly outputs normal temperature water through an integrally formed channel. The upper part 43 of the water outlet has a protruding upper limit end 431, and the water outlet also has a lower limit platform 45, the upper limit end 431 and the lower limit platform 45 overlapping in the vertical direction.

[0031] See Figure 4 The installation method for hot water pipes and faucets is as follows: First, connect... Figure 7 The spring assembly shown is inserted into the horizontal section of the hot water pipe 6, as shown. Figure 4 As shown in the left figure, keep the horizontal section 62 of the hot water pipe 6 horizontal and the vertical section 63 vertical. The horizontal section 62 is perpendicular to the room temperature water pipe connection end 44 of the outlet, and the vertical section 63 is aligned with the outlet through hole 42. Then press it down to form the posture shown in the middle figure. At this time, the end of the vertical section 63 passes through the outlet through hole, and the horizontal section 62 is still perpendicular to the room temperature water pipe connection end 44 of the outlet, but it is lower than the upper limit end 431 of the upper part 43 of the outlet. Then rotate the horizontal section 62 horizontally by 90° to form the posture shown in the right figure. At this time, the horizontal section 62 is parallel to the room temperature water pipe connection end 44 of the outlet, i.e., the preset angle, and the hot water pipe is restricted between the upper limit end 431 and the lower limit platform 45, and cannot be shaken up and down. The installation of the hot water pipe and the outlet is now complete. Figure 2 Install it onto the extension 3 of the hot water faucet as shown.

[0032] See Figure 5The right side of the water outlet 4 has a vertical section 63 of hot water pipe inserted, and the left side is a channel for room temperature water to flow out. A filter screen 51 is installed in this channel. The bottom of the filter screen 51 is stuck on the inner stepped surface 46 of the water outlet on one hand, and is pushed against the upper part 43 of the water outlet on the other hand, so that it can neither move upward nor downward, thereby maintaining axial stability.

[0033] See Figure 7 The spring assembly 9 consists of a large spring 91 and a small spring 92 nested together. The large spring has an outer diameter of 4.5 mm, an inner diameter of 3.5 mm, and a length of 70 mm. It is made of 0.5 mm diameter stainless steel wire wound with 70 turns. The small spring has an outer diameter of 3 mm, an inner diameter of 2 mm, and a length of 157 mm. It is also made of 0.5 mm diameter stainless steel wire wound with 157 turns. The small spring also has a protrusion 921 with an outer diameter of 5.5 mm and an inner diameter of 4.5 mm. The hot water pipe 6 has an inner diameter of 5.0 mm, allowing the protrusion of the small spring to be secured inside the pipe with an interference fit. This provides support under fluid impact and prevents axial displacement of the spring.

[0034] The double-layer springs employ an opposite rotation design, with the larger spring rotating right-handed and the inner layer of the smaller spring rotating left-handed. This creates a symmetrical turbulence field in the water flow, controlling the Reynolds number to around the critical value of 2000-2300 and effectively suppressing turbulence formation. The spring surfaces are chrome-plated, with a surface roughness Ra≤0.4μm, reducing the water flow resistance coefficient to below 0.025.

[0035] The aforementioned spring assemblies are all installed within the horizontal section of the hot water pipe, without extending into the vertical section. This effectively intercepts and absorbs large air bubbles in the pure water, which are then broken up by the water flow before re-entering the water, thus optimizing the hot water flow pattern at the outlet.

Claims

1. A water purifier with a hot water pipe, wherein the hot water pipe is equipped with a heating device, and the hot water pipe provides hot water to the user through a water outlet; characterized in that: The hot water pipe is equipped with at least one spring, which is interference-fitted with the pipe wall to lock it in place.

2. The water purifier with a hot water pipe as described in claim 1, characterized in that: The hot water pipe is equipped with two springs: one with a larger diameter and the other with a smaller diameter. The smaller diameter spring is nested inside the larger diameter spring, but a portion of its diameter is not smaller than that of the larger diameter spring, and it is interference-fitted with the pipe wall. In the direction of hot water outflow, the axial length of the smaller diameter spring is longer than that of the larger diameter spring.

3. The water purifier with a hot water pipe as described in claim 2, characterized in that: The two springs rotate in opposite directions.

4. The water purifier with a hot water pipe as described in any one of claims 1-3, characterized in that: The hot water pipe has a horizontal section and a vertical section. The hot water in the pipe first passes through the horizontal section and then through the vertical section before exiting from the water outlet. All the springs are located in the horizontal section.

5. The water purifier with a hot water pipe as described in any one of claims 1-3, characterized in that: The water outlet has a vertical through hole through which the vertical section of the hot water pipe is inserted; The water outlet has a protruding upper limit end at the top, the vertical projection of which overlaps with the hot water pipe; the water outlet has a lower limit platform at the bottom, the vertical projection of which also overlaps with the hot water pipe.

6. The water purifier with a hot water pipe as described in claim 4, characterized in that: The water outlet has a vertical through hole through which the vertical section of the hot water pipe is inserted; The water outlet has a protruding upper limit end at the top, the vertical projection of which overlaps with the hot water pipe; the water outlet has a lower limit platform at the bottom, the vertical projection of which also overlaps with the hot water pipe.

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