Water dispenser with non-water type pressure relief valve

Abstract

This utility model discloses a water dispenser with a waterless pressure relief valve, comprising: a body; a hot water tank disposed inside the body; and a valve body, the top of which is threadedly connected to a waterless pressure relief valve body. The structure, where a float within the valve body pulls a stop rod to release air, solves the problem of hot water splashing and cold water overflowing that often occurs in traditional water dispensers due to pressure imbalance. The waterless pressure relief valve can precisely regulate internal pressure, eliminating such phenomena. Whether in a busy office setting or in daily home use, it avoids the risks of scalding, wetting important documents or appliances, creating a safe operating environment for users. Furthermore, with the vent holes of the pressure relief valve located inside the body, it effectively protects internal connections from hot water spraying out. This prevents short circuits, reduces dust and moisture accumulation and bacterial growth, ensures a stable and safe internal environment, and extends the lifespan of the water dispenser.

Description

Technical Field

[0001] This utility model relates to the field of water dispenser pressure relief valves, specifically a water dispenser with a waterless pressure relief valve. Background Technology

[0002] The hot water tank inside a water dispenser is used to heat and store hot water. When the pressure inside the hot water tank is too high, such as during the heating process when water turns into steam and the pressure increases, the pressure relief valve will automatically open to release the excess internal pressure, preventing the hot water tank from being damaged or even exploding due to excessive pressure.

[0003] When existing hot water tanks release pressure through the vent valve, water is discharged along with the tank, which may wet surrounding items. In places such as offices, the discharged water may pose a safety hazard and affect the environment. In some public places, the discharge of hot air can catch people off guard.

[0004] Secondly, if the vent of a standard air vent valve is located inside the machine body, the high temperature when hot water is sprayed can easily cause the internal plastic connectors to deform. For example, the plastic water pipe joints may soften and bend, leading to loose connections and leaks. Metal connectors may also experience limescale buildup due to mineral deposits in the hot water, which can then corrode under the impact of hot water, reducing the stability of heating and control functions. As a result, connector failures become frequent, repair costs increase dramatically, and the lifespan of the water dispenser is significantly shortened. Utility Model Content

[0005] The purpose of this utility model is to provide a water dispenser with a waterless pressure relief valve to solve the problems mentioned in the background art. To achieve the above purpose, the present invention provides the following technical solution: a water dispenser with a waterless pressure relief valve, comprising: a body; a hot water tank, wherein the hot water tank is disposed inside the body; and a valve body, wherein the top of the hot water tank is rotatably connected to the waterless pressure relief valve body by a thread.

[0006] Preferably, a float is slidably connected to the inner wall of the valve body, and a rectangular groove is opened at the top of the float. A first blocking rod and a second blocking rod are arranged in the rectangular groove. The first blocking rod and the second blocking rod are on the same axis and a spring is fixed between their outer surfaces. A pull rod is fixedly connected to the top of the inner wall of the rectangular groove. The first blocking rod is located below the pull rod. The second blocking rod penetrates the inner wall of the valve body and is fixedly connected to the outer wall of the valve body. An exhaust hole penetrating the body is opened inside the second blocking rod. A through hole is opened at the bottom of the valve body.

[0007] Preferably, a tee is installed on the top of the hot water tank, and the interfaces of the tee are connected to the heat exchanger and the water outlet, respectively. The heat exchanger is connected to the filter.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1. The structure that uses a float inside the valve body to pull the plug rod to release air solves the problem of hot water splashing and cold water overflowing that often occurs in traditional water dispensers due to pressure imbalance. The waterless pressure relief valve can precisely regulate the internal pressure, eliminating such phenomena and avoiding risks such as scalding and wetting of electrical appliances, thus creating a safe living and working environment for users.

[0010] 2. Secondly, when the vent of the pressure relief valve is located inside the machine body, it effectively protects the internal connecting parts from hot water spraying out. This prevents foreign objects from entering, avoids short circuits, reduces dust and moisture accumulation and bacterial growth, ensures a stable and safe internal environment, extends the water dispenser's lifespan, reduces maintenance, and enhances reliability. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the valve body of this utility model;

[0013] Figure 3 This is a top view of the valve body structure of this utility model;

[0014] In the diagram: 1. Main body; 2. Hot water tank; 3. Valve body; 4. Filter; 5. Heat exchanger; 6. Float; 7. Rectangular groove; 8. First plug rod; 9. Second plug rod; 10. Spring; 11. Vent hole; 12. Pull rod; 13. Through hole; 14. T-joint. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-3 This utility model provides a technical solution: a water dispenser with a waterless pressure relief valve, comprising: a body 1; a hot water tank 2, wherein the hot water tank 2 is disposed inside the body 1; and a valve body 3, wherein the top of the hot water tank 2 is rotatably connected to the waterless pressure relief valve body 3 by means of a thread.

[0017] A float 6 is slidably connected to the inner wall of the valve body 3. A rectangular groove 7 is provided at the top of the float 6. A first blocking rod 8 and a second blocking rod 9 are provided in the rectangular groove 7. The first blocking rod 8 and the second blocking rod 9 are on the same axis, so that the end faces of the two blocking rods can make perfect contact. A spring 10 is fixed between the outer surfaces. The spring 10 can fix the rods and reset them after separation. A pull rod 12 is fixedly connected to the top of the inner wall of the rectangular groove 7. The first blocking rod 8 is located below the pull rod 12. The pull rod 12 can drive the first blocking rod 8 to rotate as the float 6 moves up and down. The second blocking rod 9 penetrates the inner wall of the valve body 3, and its outer wall is fixedly connected to the valve body 3. An exhaust hole 11 is provided inside the second blocking rod 9, penetrating the body. When the end faces of the two blocking rods are open, the exhaust hole 11 is exposed, and steam can be discharged from the inside of the valve body 3 through the exhaust hole 11. A through hole 13 is provided at the bottom of the valve body 3. Water and steam in the hot water tank 2 enter the inner cavity of the valve body 3 through the through hole 13.

[0018] The top of the hot water tank 2 is equipped with a tee 14, the interface of which is connected to the heat exchanger 5 and the water outlet respectively. The heat exchanger 5 is connected to the filter 4.

[0019] Working principle: When hot water is poured into the hot water tank 2, the steam generated inside rises into the valve body 3. The steam passes through the gap between the inner wall of the valve body 3 and the float 6, and condenses at the top of the valve body 3. Under the influence of air pressure, the float 6 descends along the inner wall of the valve body 3, and the pull rod 12 pulls the first blocking rod 8 downward along with the float 6. At this moment, due to the fixed connection of the spring 10, the first blocking rod 8 rotates in the direction of the pull rod 12 sinking. Therefore, the end faces of the first blocking rod 8 and the second blocking rod 9 that are in contact with each other are opened, so that the vent hole 11 inside the second blocking rod 9 is exposed in the inner cavity of the valve body 3. The steam is discharged outward through the vent hole 11 until the water level rises into the valve body 3. The float 6 and the pull rod 12 rise with the rise of the water level. At this time, under the action of the spring 10, the first blocking rod 8 rotates back and flattens, blocking the vent hole 11 inside the second blocking rod 9. This realizes the characteristic of the hot water tank 2 of the water dispenser to only release air and not drain water when depressurizing.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water dispenser with a waterless pressure relief valve, characterized in that, include: Body (1); Hot water tank (2), wherein the hot water tank (2) is disposed inside the body (1); The valve body (3) is connected to the top of the hot water tank (2) by a threaded connection. A float (6) is slidably connected to the inner wall of the valve body (3). A rectangular groove (7) is opened at the top of the float (6). A first plug rod (8) and a second plug rod (9) are provided in the rectangular groove (7). The first plug rod (8) and the second plug rod (9) are on the same axis and a spring (10) is fixed between their outer surfaces. A pull rod (12) is fixedly connected to the top of the inner wall of the rectangular groove (7). The first plug rod (8) is located below the pull rod (12). The second plug rod (9) penetrates the inner wall of the valve body (3) and is fixedly connected to the outer wall of the valve body (3). An exhaust hole (11) penetrating the body is opened inside the second plug rod (9). A through hole (13) is opened at the bottom of the valve body (3).

2. A water dispenser with a waterless pressure relief valve according to claim 1, characterized in that: The hot water tank (2) is equipped with a tee (14) on top. The interface of the tee (14) is connected to the heat exchanger (5) and the water outlet respectively. The heat exchanger (5) is connected to the filter (4).

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