Water purifying and drinking machine with hot water pipe

Abstract

The invention discloses a water purifying and drinking machine with a hot water pipe, a heating device is arranged outside the hot water pipe, and the hot water pipe provides hot water for a user through a water outlet nozzle; two sections of springs are arranged in the hot water pipe and are respectively a spring with a larger diameter and a spring with a smaller diameter, the spring with the smaller diameter is nested in the spring with the larger diameter, and one part of the spring with the diameter not smaller than that of the spring with the larger diameter is in interference fit with the pipe wall; and in the flowing-out direction of the hot water, the axial length of the spring with the smaller diameter is greater than that of the spring with the larger diameter. Water-vapor separation can be realized without using a water-vapor separation box under the condition that the flow rate of hot water is not damaged, so that the effluent form is stable.

Description

Technical Field

[0001] The invention belongs to the technical field of water purifiers, and in particular relates to a water purifier with a hot water pipe. Background Art

[0002] Current water purifiers generally feature a heating function. Filtered pure water can be delivered at room temperature or heated. This requires a hot water pipe to deliver heated water to the user. However, heated water inevitably contains bubbles, which can cause the hot water to flow unsteadily from the spout, resulting in fan-shaped or scattered water. This can negatively impact the user's appearance and pose a risk of burns.

[0003] To solve this problem, existing technologies often install a water vapor separation box in the hot water pipeline to allow the gas in the hot water to escape and not affect the water flow pattern. The applicant has previously applied for several patents in this area. For example, CN210204462U discloses a water vapor separation box for an instant hot water dispenser, comprising a box body having a cavity structure, a water inlet on one side of the box body, and a water outlet at the lower end of the box body; the bottom surface of the box body has an inverted cone structure, and the water outlet is located at the lowest point of the inverted cone structure; the box body also has an exhaust channel surrounded by a baffle, and the exhaust channel is a columnar structure with an air inlet at the top and an exhaust at the bottom; the air inlet at the top of the exhaust channel is higher than the water inlet. An exhaust channel is set in the water vapor separation box. The exhaust channel is in the form of a full circle, and the incoming hot water and water vapor are separated; the air inlet at the top of the exhaust channel is higher than the water inlet to prevent hot water from directly entering the exhaust channel, and the exhaust pipe can block the impact of incoming water, so that water falls from directly above the water outlet, reducing the water flow path, while water vapor enters the exhaust channel and is discharged from the exhaust port below.

[0004] Another example is CN210582215U, which discloses a jet-type water vapor separation box. The box body is a hollow structure with a cold water inlet and a hot water inlet on one side and a water outlet at the lower end. The bottom surface of the box body is an inverted cone structure, with the water outlet located at the lowest point of the inverted cone structure. The box body is also provided with an exhaust channel, the bottom end of which is an exhaust port. The hot water inlet is tilted downward, with its lowest end connected to the interior of the box body. The inclination angle of the hot water inlet is 8 to 15 degrees, which is the angle between the hot water inlet and the horizontal line. In this structure, the hot water inlet is tilted downward, and the bottom of the box body is an inverted cone structure. This allows gravity to accelerate the rapid fall of excess water in the box, thereby reducing dripping.

[0005] CN216602490U also discloses a water vapor separation box, comprising a box body with a water inlet on one side and a water vapor outlet on the other. The water inlet and the water vapor outlet are connected by a slope, and the water vapor outlet is located at the lowest point of the water vapor separation box. A heating device is located adjacent to the water inlet, and the box body and the heating device are integrally connected. A V-shaped barrier layer is located within the box body, with the endpoints of the V-shaped barrier layer overlapping the center of the circle of the water vapor outlet, and two wings extending backward to intersect with the side walls of the box body. The tip of the V-shaped barrier layer is hollowed out, and its endpoints are aligned with the center of the circle, forming a circular water outlet with a radius smaller than the water vapor outlet. The portion of the water vapor outlet that does not intersect with the V-shaped barrier layer and the water outlet forms a fan-shaped steam exhaust port. This water vapor separation box can fully separate water vapor while ensuring that water flows straight and smoothly at different flow rates, preventing splashing and reducing safety hazards.

[0006] The principles of the aforementioned literature and other existing technologies on the market all rely on allowing the hot water to remain for a certain period of time during its dispensing process, using the specific shape of the steam separation box to allow the gas in the hot water to escape. However, the existing technology suffers from a reduction in the flow rate of the hot water after passing through the steam separation box, as well as the complex structure of the steam separation box and its high manufacturing cost. Summary of the Invention

[0007] The object of the present invention is to provide a water purifier with a hot water pipe and without using a water vapor separation box.

[0008] The technical solution adopted by the present invention 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 a water outlet; the characteristic is that at least one spring is provided in the hot water pipe, which has an interference fit with the pipe wall and is thus stuck in the hot water pipe.

[0009] Furthermore, two sections of springs are provided in the hot water pipe, namely a spring with a larger diameter and a spring with a smaller diameter. The spring with a smaller diameter is nested in the spring with a larger diameter, but a part of it has a diameter not smaller than that of the spring with a larger diameter, and has an interference fit with the pipe wall; in the direction of hot water outflow, the axial length of the spring with a smaller diameter is ahead of the spring with a larger diameter.

[0010] The "two-section spring" described above is an open-ended description; a third or more sections are possible. For example, a spring with a larger or smaller diameter could be broken into multiple sections, while still functioning as a single spring. Another example is a spring with multiple layers of large, medium, and small diameters nested together.

[0011] A more optimized solution for the above-mentioned double-layer nested two-section spring is to have the two sections of springs with opposite rotation directions, for example, the spring with a larger diameter is left-handed and the spring with a smaller diameter is 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 the vertical section, and then flows out from the water outlet. The springs are all located in the horizontal section.

[0013] The present invention can also adopt the following technical solution: the water outlet has a vertical through hole, through which the vertical section of the hot water pipe is passed; 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] After extensive research, the applicant discovered that gases dissolved in pure water exist as microbubbles. Upon heating, these bubbles aggregate to form larger bubbles. This process doesn't occur suddenly, but rather occurs as microbubbles first aggregate into smaller bubbles, which then further aggregate into larger bubbles. It's the presence of these larger bubbles that affects the morphology of the water output, causing the problems described in the background technology section. Smaller bubbles, on the other hand, don't actually affect the flow pattern. Roughly speaking, a particle size of 0.5 mm can be considered the dividing line; only bubbles larger than 0.5 mm affect the flow pattern.

[0015] The double-layered nested springs in the present invention form a grid in the waterway. When water containing bubbles flows through the springs, larger bubbles are intercepted and absorbed by the grid formed by the springs, resulting in a bubble-free water outlet, effectively achieving a water vapor separation effect. After these larger bubbles rest on the springs, they are washed away by the subsequent water flow and broken into smaller bubbles, which then leave the springs, re-enter the water, and flow out through the water outlet.

[0016] Because larger bubbles must eventually break and enter the water, they should be prevented from leaving the spring before they break. When bubbles remain in the vertical section, they are more likely to rise from the spring due to buoyancy. Therefore, the present invention further limits the spring to being located entirely within the horizontal section.

[0017] From the above description, it can be seen that the hot water of the present invention does not pass through the water vapor separation box during the water discharge process, so the water discharge is not slowed down and the hot water can be provided to the user at a higher flow rate; in fact, high-speed water discharge is more conducive to breaking up larger bubbles adsorbed on the spring, which is more in line with the design purpose of the present invention.

[0018] In addition, the present invention retains the gas in the form of smaller bubbles in the water, so that there are still a large number of small bubbles in the hot water flowing out of the water spout. From a visual point of view, it will appear that the hot water is emitting "white smoke", giving the user a psychological feeling that the water temperature is very high, which is more in line with the user's psychological expectations.

[0019] During installation, the present invention pre-places a spring in the horizontal section of the hot water pipe. The vertical section of the hot water pipe is then inserted into the vertical through-hole of the water outlet at an angle perpendicular to its preset horizontal position, so that the hot water pipe is located between the upper limit end and the lower limit platform in the vertical direction. The pipe is then rotated 90° in the horizontal direction so that it enters between the upper limit end and the lower limit platform. Once the hot water pipe is installed, it is restricted by the upper limit end and the lower limit platform in the vertical direction, preventing it from shaking up and down. It is restricted by the vertical through-hole of the water outlet in the horizontal direction, preventing it from shifting left and right or forward and backward. Swinging about the vertical through-hole does not affect its vertical downward orientation, and therefore does not affect its use. This set of technical features ensures that the vertical section of the hot water pipe always remains vertically downward, and the water outlet is vertical and stable.

[0020] It can be seen that the present invention does not require the use of a water vapor separation box, and can achieve water vapor separation without damaging the hot water flow rate, so that the water outlet shape is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 、 Figure 6 It is an exploded schematic diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the assembly 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 schematic diagram of the hot water pipe installation process.

[0025] Figure 5 It is a cross-sectional schematic diagram of the water outlet.

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

[0027] The accompanying drawings are marked 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-step surface inside the water outlet; 5-normal temperature water pipe; 51-filter; 6-hot water pipe; 60-heating body; 61-hot water pipe connection part; 62-horizontal section of hot water pipe; 63-vertical section of hot water pipe; 7-lower shell; 71-decorative cover; 8-display switch; 9-spring assembly; 91-large spring; 92-small spring; 921-small spring protrusion. DETAILED DESCRIPTION

[0028] See also Figure 1 、 Figure 6The hot water tap of this embodiment is installed on the water purifier by the cooperation of the mounting nut 1 and the mounting part 2. The mounting part 2 is vertically arranged, and there is an extension part 3 extending horizontally above it, and the extension part 3 is rotatably connected to the mounting part 2. There is also a display switch 8 above the extension part. It is a prior art that has both display functions and the function of controlling the on and off of each pipeline. It will not be described here. The water in the hot water pipe 6 is heated hot water. The heating body 60 is Figure 6 Shown in.

[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 portion 2 and the extension portion 3 and discharge water through a water outlet 4, which is fixedly mounted at the front end of the extension portion 3. The lower housing 7 and the decorative cover 71 cover and conceal the water pipes and the water outlet for decorative purposes.

[0030] See also Figure 2 、 Figure 3 . The water outlet 4 has a water outlet connection part 41, which is fixedly installed on the lower surface of the extension part 3 by screws 00; the hot water pipe 6 has a hot water pipe connection part 61, which is also fixedly installed on the lower surface of the extension part 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 connection end 44 for connecting to the normal temperature water pipe 5, and the other end of the normal temperature water pipe connection end 44 directly discharges 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, and the upper limit end 431 and the lower limit platform 45 overlap in the vertical direction.

[0031] See also Figure 4 The installation method of the hot water pipe and the water outlet is as follows: First, Figure 7 The spring assembly shown is placed in the horizontal section of the hot water pipe 6 to Figure 4 As shown in the left figure, the horizontal section 62 of the hot water pipe 6 is kept horizontal, and the vertical section 63 is kept vertical, wherein the horizontal section 62 is perpendicular to the normal temperature water pipe connection end 44 of the water outlet, and the vertical section 63 is aligned with the water 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 water outlet through-hole, and the horizontal section 62 is still perpendicular to the normal temperature water pipe connection end 44 of the water outlet, but is lower than the upper limit end 431 of the upper part 43 of the water outlet. Then rotate the horizontal section 62 horizontally 90° to form the posture shown in the right figure. At this time, the horizontal section 62 is parallel to the normal temperature water pipe connection end 44 of the water outlet, that is, the preset angle, and the hot water pipe is restricted between the upper limit end 431 and the lower limit platform 45, and cannot shake up and down. At this point, the installation of the hot water pipe and the water outlet is completed, and then they are connected in Figure 2 The method shown is to be installed on the extension part 3 of the hot water tap.

[0032] See also Figure 5The vertical section 63 of the hot water pipe is inserted into the right side of the water outlet 4, and the left side is a channel for the flow of normal temperature water. A filter screen 51 is provided in the channel. The bottom of the filter screen 51 is stuck on the inner step surface 46 of the water outlet on the one hand, and is contacted by 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 also Figure 7 The spring assembly 9 is formed by nesting a large spring 91 and a small spring 92. The large spring has an outer diameter of 4.5mm, an inner diameter of 3.5mm, and a length of 70mm. It is wound with 70 turns of stainless steel wire with a wire diameter of 0.5mm. The small spring has an outer diameter of 3mm, an inner diameter of 2mm, and a length of 157mm. It is wound with 157 turns of stainless steel wire with a wire diameter of 0.5mm. The small spring also has a protrusion 921 with an outer diameter of 5.5mm and an inner diameter of 4.5mm. The inner diameter of the hot water pipe 6 is 5.0mm, so the protrusion of the small spring can be stuck in the hot water pipe, forming an interference fit with it, generating a supporting force under the impact of the fluid and preventing the spring from axial displacement.

[0034] The double-layer springs feature a counter-rotating design, with the larger spring twisting clockwise and the smaller inner spring twisting counterclockwise. This creates a symmetrical turbulence field in the water flow, keeping the Reynolds number near the critical value of 2000-2300 and effectively suppressing turbulence. The springs are chrome-plated with a surface roughness of Ra ≤ 0.4μm, reducing the water resistance coefficient to below 0.025.

[0035] The spring assemblies are installed in the horizontal section of the hot water pipe and do not extend into the vertical section. They effectively intercept and absorb large bubbles in pure water, breaking them up before they enter the water flow, thereby optimizing the flow of hot water at the outlet.

Claims

1. A water purifier having a hot water pipe with a heating device attached thereto, which provides hot water to the user through a water outlet; characterized by: At least one section of spring is provided in the hot water pipe and is interference fit with the pipe wall so as to be stuck in the hot water pipe.

2. The water purifier with a hot water pipe according to claim 1, characterized in that: There are two sections of springs in the hot water pipe, one with a larger diameter and the other with a smaller diameter. The smaller diameter spring is nested in the larger diameter spring, but a part of it has a diameter not smaller than that of the larger diameter spring, and has an interference fit with the pipe wall. In the direction of hot water outflow, the axial length of the smaller diameter spring is ahead of the larger diameter spring.

3. The water purifier with a hot water pipe according to claim 2, characterized in that: The two spring sections rotate in opposite directions.

4. The water purifier with a hot water pipe according to any one of claims 1 to 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 the vertical section, and then flows out from the water outlet. The springs are all located in the horizontal section.

5. The water purifier with a hot water pipe according to any one of claims 1 to 3, characterized in that: The water outlet has a vertical through hole, through which the vertical section of the hot water pipe passes; The upper part of the water spout has a protruding upper limit end, the vertical projection of which overlaps with the hot water pipe; the lower part of the water spout has a lower limit platform, the vertical projection of which also overlaps with the hot water pipe.

6. The water purifier with a hot water pipe according to any one of claims 4, characterized in that: The water outlet has a vertical through hole, through which the vertical section of the hot water pipe passes; The upper part of the water spout has a protruding upper limit end, the vertical projection of which overlaps with the hot water pipe; the lower part of the water spout has a lower limit platform, the vertical projection of which also overlaps with the hot water pipe.

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