A high temperature resistant liquid level detection mechanism for hot water tank

Abstract

The utility model relates to a high temperature resistant liquid level detection mechanism for a hot water tank, comprising a hot water tank with a heating element arranged inside, a transparent observation window arranged on the left side wall of the hot water tank, a vertical guide member vertically fixed inside the hot water tank arranged on the right side of the transparent observation window, a floating plate vertically slidably connected to the upper edge of the vertical guide member; an upper limit sensor and a lower limit sensor distributed up and down and used to detect the floating plate arranged on the left side of the transparent observation window, the upper limit sensor and the lower limit sensor being electrically connected to the water inlet assembly of the hot water tank via a control unit. The utility model has a simple and reasonable structural design, by arranging a floating plate in the hot water tank, the floating plate moves up and down with the change of the water level in the hot water tank, and the position of the floating plate is detected by the upper and lower limit sensors, so that the upper limit value and the lower limit value of the water level in the hot water tank can be easily detected, and then the water replenishment to the hot water tank can be controlled, without manual regular observation, thereby improving the convenience of operation.

Description

Technical field:

[0001] The utility model relates to a high temperature resistant liquid level detection mechanism for a hot water tank. Background technology:

[0002] The hot water tank needs to detect the liquid level during use so that it can be replenished in time. In traditional technology, because the hot water temperature in the hot water tank is relatively high (mostly 95°C hot water), the existing float level gauge has a relatively low tolerance temperature and cannot withstand 95°C hot water, resulting in the inability of the existing float level gauge to be used normally. It can only rely on manual timing and visual observation and control of the water inlet valve. This method is inconvenient to operate and is not conducive to timely replenishment of the hot water tank. Therefore, it is necessary to improve this technical problem, and this case is born. Utility model content:

[0003] The utility model makes improvements on the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the utility model is to provide a high temperature resistant liquid level detection mechanism for a hot water tank.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-temperature resistant liquid level detection mechanism for a hot water tank, comprising a hot water tank with a heating element arranged inside, a transparent observation window is arranged on the left side wall of the hot water tank, a vertical guide member vertically fixed inside the hot water tank is arranged on the right side of the transparent observation window, a floating plate is vertically slidably connected to the upper edge of the vertical guide member; an upper limit sensor and a lower limit sensor distributed up and down and used to detect the floating plate are arranged on the left side of the transparent observation window, and the upper limit sensor and the lower limit sensor are electrically connected to the water inlet assembly of the hot water tank via a control unit.

[0005] Furthermore, the vertical guide member includes a pair of vertical guide rods spaced apart front and rear, and the vertical guide rods are fixed to the inner bottom of the hot water tank; the floating plate is provided with a pair of vertical through holes spaced apart front and rear, and the pair of vertical guide rods slide through the pair of vertical through holes.

[0006] Furthermore, the length of the vertical guide rod is greater than the height of the transparent observation window.

[0007] Furthermore, the upper limit sensor is connected to the upper left end of the hot water tank via a first L-shaped connecting frame, and the lower limit sensor is connected to the lower left end of the hot water tank via a second L-shaped connecting frame. The first L-shaped connecting frame and the second L-shaped connecting frame are both horizontally arranged and symmetrically distributed up and down.

[0008] Furthermore, the floating plate is made of high temperature resistant material.

[0009] Furthermore, the water inlet assembly of the hot water tank includes a water inlet pipe, which is connected to the top of the hot water tank. A water inlet pump is provided on the water inlet pipe, and the water inlet pump is electrically connected to the control unit; a water outlet pipe is connected to the bottom of the hot water tank.

[0010] Furthermore, the upper limit sensor and the lower limit sensor are both photoelectric sensors or far infrared sensors.

[0011] Compared with the prior art, the utility model has the following effects: the utility model has a simple and reasonable structural design, and a floating plate is arranged in the hot water tank, the floating plate moves up and down as the water level in the hot water tank changes, and the position of the floating plate is detected by the upper and lower limit sensors, so that the upper and lower limits of the water level in the hot water tank can be easily detected, thereby controlling the water replenishment of the hot water tank, without the need for manual regular observation, and improving the convenience of operation. Description of the drawings:

[0012] Figure 1 It is a schematic diagram of the main cross-sectional structure of an embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the utility model. Specific implementation method:

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] like Figures 1-2As shown, the utility model is a high-temperature resistant liquid level detection mechanism for a hot water tank, comprising a hot water tank 1 with a heating element (for example, an electric heating tube, not shown in the figure) arranged inside, a transparent observation window 2 is arranged on the left wall of the hot water tank 1, a vertical guide member vertically fixed inside the hot water tank 1 is arranged on the right side of the transparent observation window 2, a floating plate 3 is vertically slidably connected to the upper edge of the vertical guide member; an upper limit sensor 4 and a lower limit sensor 5 distributed up and down and used for detecting the floating plate are arranged on the left side of the transparent observation window 2, and the upper limit sensor 4 and the lower limit sensor 5 are electrically connected to the water inlet assembly of the hot water tank 1 via a control unit (for example, a single-chip microcomputer). During operation, the floating plate moves up and down with the change of the water level in the hot water tank. When the lower limit sensor detects the floating plate, the water level in the hot water tank is low, and the control unit controls the water inlet component to fill water into the hot water tank; as the water level in the hot water tank continues to rise, the floating plate gradually moves upward; when the upper limit sensor detects the floating plate, the water level in the hot water tank is high, and the control unit controls the water inlet component to stop replenishing water; finally, the heating element starts heating.

[0017] In this embodiment, the vertical guide member includes a pair of vertical guide rods 6 spaced apart in front and back, and the vertical guide rods 6 are fixed to the inner bottom of the hot water tank 1; the floating board 3 is provided with a pair of vertical through holes 7 spaced apart in front and back, and the pair of vertical guide rods 6 slide through the pair of vertical through holes 7. By providing a pair of vertical guide rods, the stability of the floating board moving up and down is improved.

[0018] In this embodiment, the length of the vertical guide rod 6 is greater than the height of the transparent observation window 2 .

[0019] In this embodiment, the upper limit sensor 4 is connected to the upper left end of the hot water tank 1 via the first L-shaped connecting frame 8, and the lower limit sensor 5 is connected to the lower left end of the hot water tank 1 via the second L-shaped connecting frame 9. The first L-shaped connecting frame and the second L-shaped connecting frame are both horizontally arranged and symmetrically distributed up and down. The upper limit sensor and the lower limit sensor are respectively located on the upper and lower sides of the transparent observation window.

[0020] In this embodiment, the floating plate is made of high temperature resistant material.

[0021] In this embodiment, the water inlet assembly of the hot water tank includes a water inlet pipe 10, which is connected to the top of the hot water tank 1. A water inlet pump 11 is provided on the water inlet pipe 10, and the water inlet pump is electrically connected to the control unit; a water outlet pipe 12 is connected to the bottom of the hot water tank.

[0022] In this embodiment, the upper limit sensor 4 and the lower limit sensor 5 are both photoelectric sensors or far infrared sensors.

[0023] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an one-piece molding process).

[0024] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0025] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A high temperature resistant liquid level detection mechanism for a hot water tank, comprising a hot water tank with a heating element disposed therein, characterized in that: A transparent observation window is provided on the left side wall of the hot water tank, and a vertical guide member vertically fixed inside the hot water tank is provided on the right side of the transparent observation window, and a floating plate is vertically slidably connected to the vertical guide member; an upper limit sensor and a lower limit sensor distributed up and down and used to detect the floating plate are provided on the left side of the transparent observation window, and the upper limit sensor and the lower limit sensor are electrically connected to the water inlet assembly of the hot water tank via a control unit.

2. A high temperature resistant liquid level detection mechanism for a hot water tank according to claim 1, characterized in that: The vertical guide member includes a pair of vertical guide rods spaced apart in front and back, and the vertical guide rods are fixed to the inner bottom of the hot water tank; the floating plate is provided with a pair of vertical through holes spaced apart in front and back, and the pair of vertical guide rods slide through the pair of vertical through holes.

3. A high temperature resistant liquid level detection mechanism for a hot water tank according to claim 2, characterized in that: The length of the vertical guide rod is greater than the height of the transparent observation window.

4. A high temperature resistant liquid level detection mechanism for a hot water tank according to claim 1, characterized in that: The upper limit sensor is connected to the upper left end of the hot water tank via a first L-shaped connecting frame, and the lower limit sensor is connected to the lower left end of the hot water tank via a second L-shaped connecting frame. The first L-shaped connecting frame and the second L-shaped connecting frame are both horizontally arranged and symmetrically distributed up and down.

5. The high temperature resistant liquid level detection mechanism for a hot water tank according to claim 1, characterized in that: The floating plate is made of high temperature resistant material.

6. A high temperature resistant liquid level detection mechanism for a hot water tank according to claim 1, characterized in that: The water inlet assembly of the hot water tank comprises a water inlet pipe, which is connected to the top of the hot water tank. A water inlet pump is arranged on the water inlet pipe, and the water inlet pump is electrically connected to the control unit. The bottom of the hot water tank is connected to a water outlet pipe.

7. A high temperature resistant liquid level detection mechanism for a hot water tank according to claim 1, characterized in that: The upper limit sensor and the lower limit sensor are both photoelectric sensors or far infrared sensors.

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