Water supply system and method for detecting residual water quantity of water tank of water supply system

Abstract

The invention relates to the technical field of tissue distributors, discloses a water supply system and a method for detecting the residual water amount of a water tank of the water supply system, and solves the technical problem that how to design a water supply system occupying a small installation space in a machine currently needs to be solved at present, the water supply system comprises a water pump and a boiler, and the water pump is provided with a first water inlet end and a first water outlet end; the water outlet end of the first water inlet pipeline is connected to the first water inlet end, the first water outlet end is connected to the boiler, the boiler body is provided with an inwards-concave part in the length direction, an inwards-concave position plate is arranged on one side of the inwards-concave part, and a water guide pipe is installed on the inwards-concave position plate and connected to the first water inlet end. The first water inlet pipeline is arranged at the inner concave part and connected to the first water inlet end through a water guide pipe so as to supply water into the water pump. According to the technical scheme, the water pump and the boiler are arranged in the coaxial direction so that the water pump and the boiler can be located on the same straight line, the installation sectional area can be reduced as much as possible, and therefore the water pump can be better matched with a small-size tissue distributor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper towel dispenser, more particularly, it relates to a water supply system and a method for detecting residual water in a water tank thereof. BACKGROUND

[0002] The paper towel dispenser refers to a machine capable of automatically dispensing paper towels, which can also be called a paper towel box.

[0003] When the paper towel dispenser needs to have the function of dispensing wet towels, it is necessary to have a water supply system inside the machine, which is used to supply water to the paper towel wetting component to complete the work of wetting the paper towel together. The water supply system in the current paper towel dispenser occupies a large installation space in the machine, and how to design a water supply system that occupies a small installation space in the machine is a technical problem to be solved at present. SUMMARY

[0004] In view of the technical problems in the background art, the present application provides the following technical solutions:

[0005] A water supply system, comprising a water tank, a first water supply pipeline, a water pump, a boiler and a second water supply pipeline, the water pump and the boiler are arranged along the same straight line direction,

[0006] One end of the first water supply pipeline is communicated with the inside of the water tank, and the other end of the first water supply pipeline is connected to the water pump,

[0007] The water pump has a first water inlet end and a first water outlet end, the water outlet end of the first water inlet pipeline is connected to the first water inlet end, and the first water outlet end is connected to the boiler,

[0008] The furnace body is provided with an inner recess along the length direction, one side of the inner recess is provided with an inner recess position plate, a water guide pipe is installed on the inner recess position plate, the water guide pipe is connected to the first water inlet end, and the first water inlet pipeline is arranged at the inner recess and connected to the first water inlet end through the water guide pipe to supply water to the water pump.

[0009] The boiler has a second water outlet end, and the second water outlet end is used to connect the second water supply pipeline.

[0010] The present application is further defined as follows: wherein the boiler comprises a docking piece, a furnace body and a heating assembly,

[0011] The docking piece is used to realize the docking installation between the water pump and the furnace body,

[0012] One end of the furnace body has a sealing plate, the other end of the furnace body has an opening, and the second water outlet end is arranged on the sealing plate,

[0013] The docking component includes a docking plate and a second water inlet. The docking plate is disposed between the water pump and the boiler. The second water inlet is connected to the first water outlet and communicates with the internal space of the boiler body through the opening.

[0014] The present invention further specifies that the docking plate has a through hole for installing the water guide pipe.

[0015] The present invention further specifies that: a sealing ring is provided at the opening position, and the sealing ring is used to seal the opening.

[0016] The present invention further specifies that: the docking plate is provided with a mounting column, and the mounting column is installed into the internal space of the furnace body.

[0017] The mounting column has a hollow structure inside, and the internal space of the hollow mounting column is connected to the second water inlet. The mounting column has a water outlet hole, and the water in the water outlet hole flows out into the internal space of the furnace body.

[0018] The present invention further specifies that the heating assembly includes a heating element and a temperature detection sensor.

[0019] The heating element and temperature detection sensor are both installed along the length of the furnace body.

[0020] The present invention further specifies that the heating assembly includes the combined fixing plate and the combined fixing screw.

[0021] The heating element has a first wiring fixing terminal, and the temperature detection sensor has a second wiring fixing terminal. Both the first and second wiring fixing terminals are located on the outer side of the furnace body, and both are in contact with the combined fixing plate.

[0022] The combined fixing plate is provided with a first fixing hole, a second fixing hole and a third fixing hole. The outer rings of the first fixing hole and the second fixing hole are used to press the first wiring fixing end and the second wiring fixing end respectively. The combined fixing screw passes through the third fixing hole and penetrates into the furnace body to connect and fix with the mounting column.

[0023] The present invention further specifies that the water pump and the boiler are arranged in a coaxial direction.

[0024] The present invention also provides the following technical solutions:

[0025] Based on the aforementioned water supply system, a method for detecting the remaining water volume in a water tank is provided.

[0026] The system calculates the temperature rise of the water inside the furnace within a preset time while the heating component is in the on state. The obtained temperature rise is compared with a preset value. If the temperature rise does not exceed the preset value, it indicates that the heating component is in a dry-burning state inside the furnace, and a prompt message is given to indicate that the water tank needs to be replenished.

[0027] In summary, the present invention has the following beneficial effects:

[0028] (1) The present invention utilizes the arrangement of the water pump and the boiler along the coaxial direction so that the two are on a straight line, and the installation cross-sectional area can be minimized as much as possible, so that it can be better adapted to a small-volume paper towel dispenser.

[0029] (2) The present invention is provided with a docking part, which facilitates the installation and disassembly of the water pump and the boiler, and facilitates maintenance;

[0030] (3) The present invention provides a combined fixing plate and a combined fixing screw to fix the heating element and temperature detection sensor in the coaxial direction of the water pump and the boiler, further reducing the installation space, so as to better adapt to the small-volume paper towel dispenser.

[0031] (4) The present invention sets the concave part to hide the first water inlet pipe, further reducing the installation space, so as to better fit the small-volume paper towel dispenser.

[0032] (5) The present invention provides a new method for detecting the remaining water in the water tank, which further reduces the installation space and can be better adapted to small-volume paper towel dispensers. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the water supply system;

[0034] Figure 2 A schematic diagram of the overall three-dimensional split structure of the water supply system. Figure One ;

[0035] Figure 3 A schematic diagram of the overall three-dimensional split structure of the water supply system. Figure Two ;

[0036] Figure 4 A schematic diagram of the overall three-dimensional split structure of the water supply system. Figure Three ;

[0037] Figure 5 A schematic diagram of the overall three-dimensional split structure of the water supply system. Figure Four .

[0038] Reference numerals: 1. Water pump; 1-1. First water inlet; 1-2. First water outlet; 1-3. Water guide pipe; 2. Boiler; 3. Connecting part; 3-1. Connecting plate; 3-11. Through hole; 3-2. Second water inlet; 3-3. Mounting column; 3-31. Water outlet; 4. Furnace body; 4-1. Sealing plate; 4-11. Second water outlet; 4-2. Opening; 4-21. Sealing ring; 4-3. Recessed part; 4-4. Recessed position plate; 5. Heating assembly; 5-1. Heating element; 5-11. First wiring fixing end; 5-2. Temperature detection sensor; 5-21. Second wiring fixing end; 5-3. Joint fixing piece; 5-31. First fixing hole; 5-32. Second fixing hole; 5-33. Third fixing hole; 5-4. Joint fixing screw. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0040] A water supply system for supplying water to a paper towel dispenser. Combined with... Figures 1-5 As shown, the water supply system includes a water tank, a first water supply pipe, a water pump 1, a boiler 2, and a second water supply pipe. The water tank, the first water supply pipe, and the second water supply pipe are connected to the water pump 1 and the boiler 2 as follows: the water tank acts as a water storage module, storing reserve water. One end of the first water supply pipe passes through the water tank and connects to its interior; the other end is connected to the water pump 1, supplying water from the tank to the pump. The water pump 1 provides the power for the water flow throughout the entire line. The water pump 1 can utilize existing water pump technology. The water pump 1 transfers water to the boiler 2, where it is heated to form hot water. The water in the boiler 2 is then transferred through the second water supply pipe to the location in the paper towel dispenser where water is needed. This location corresponds to the functional component in the paper towel dispenser used to wet the paper towels, such as a spray device.

[0041] To reduce the installation space occupied by the entire water supply system in the paper towel dispenser and to facilitate the disassembly and maintenance of the water supply system, in this embodiment, the water pump 1 and the boiler 2 are arranged in the same straight line direction to adapt to the long strip paper towel dispenser. The water pump 1 has a first water inlet end 1-1 and a first water outlet end 1-2. The water outlet end of the first water inlet pipe is connected to the first water inlet end 1-1, and the first water outlet end 1-2 is connected to the boiler 2.

[0042] Boiler 2 includes a connecting part 3, a furnace body 4, and a heating assembly 5. The connecting part 3 is used to connect and install the water pump 1 and the furnace body 4. Before describing the structure of the connecting part 3, the structural design of the furnace body 4 will be introduced first. In this embodiment, one end of the furnace body 4 is a blind end with a sealing plate 4-1, and the other end of the furnace body 4 has an opening 4-2. The advantage of setting the opening 4-2 is that the internal space of the furnace body 4 can be cleaned or repaired after the connecting part 3 is removed. In this embodiment, the furnace body 4 has a recessed portion 4-3 along its length. A recessed position plate 4-4 is provided on one side of the recessed portion 4-3. A water guide pipe 1-3 is installed on the recessed position plate 4-4. The water guide pipe 1-3 is connected to the first water inlet end 1-1. The first water inlet pipe can be arranged at the recessed portion 4-3 and connected to the first water inlet end 1-1 through the water guide pipe 1-3 to supply water to the water pump 1.

[0043] Water enters the furnace body 4 through the opening 4-2 and exits through the second water outlet 4-11 set on the sealing plate 4-1. The second water outlet 4-11 is used to connect to the external second water supply pipe.

[0044] The connecting component 3 includes a connecting plate 3-1 and a second water inlet end 3-2. The connecting plate 3-1 is disposed between the water pump 1 and the boiler 2. The second water inlet end 3-2 is connected to the first water outlet end 1-2 and is connected to the internal space of the boiler body 4 through an opening 4-2. To facilitate the installation of the water guide pipe 1-3, a through hole 3-11 is provided on the connecting plate 3-1.

[0045] To achieve a seal on opening 4-2, a sealing ring 4-21 is provided around opening 4-2.

[0046] Furthermore, to facilitate the installation of the heating component 5, an installation column 3-3 is provided on the docking plate 3-1. The installation column 3-3 has a hollow structure inside, and the internal space of the hollow installation column 3-3 is connected to the second water inlet end 3-2. A water outlet hole 3-31 is provided on the installation column 3-3, and the water in the water outlet hole 3-31 flows out into the internal space of the furnace body 4.

[0047] The heating assembly 5 includes a heating element 5-1, a temperature detection sensor 5-2, a combined fixing plate 5-3, and a combined fixing screw 5-4. The heating element 5-1 and the temperature detection sensor 5-2 are both installed along the length of the furnace body 4. The heating element 5-1 has a first wiring fixing end 5-11, and the temperature detection sensor 5-2 has a second wiring fixing end 5-21. The first wiring fixing end 5-11 and the second wiring fixing end 5-21 are both located on the outer side of the furnace body 4. The first wiring fixing end 5-11 and the second wiring fixing end 5-21 abut against the combined fixing plate 5-3. The combined fixing plate 5-3 is provided with a first fixing hole 5-31, a second fixing hole 5-32, and a third fixing hole 5-33. The outer rings of the first fixing hole 5-31 and the second fixing hole 5-32 are respectively used to press the first wiring fixing end 5-11 and the second wiring fixing end 5-21. The combined fixing screw 5-4 passes through the third fixing hole 5-33 and penetrates into the furnace body 4 to connect and fix with the mounting post 3-3.

[0048] In a tissue dispenser, it is necessary to detect the remaining water level in the water tank. Most existing water level detection solutions use water level sensors for monitoring. This monitoring structure requires additional water level monitoring electronics (water level sensor) and related circuitry, increasing the number of components in the device and making it unsuitable for miniaturized machines. Based on the aforementioned water supply system structure in this embodiment, this embodiment also provides a new solution for detecting the remaining water level in the water tank.

[0049] In this embodiment, the existing water supply system structure is used to estimate the amount of water remaining in the water tank. First, the temperature rise of the water in the furnace body 4 within 30 seconds when the heating component 5 is turned on is calculated. The obtained temperature rise value is compared with a preset value. For example, in this embodiment, the preset value is set to 5°C. If the temperature rise value does not exceed 5°C, that is, the temperature rise value is less than 5°C, it means that the heating component 5 is in a dry-burning state in the furnace body 4. At this time, it means that there is no water to be added to the furnace body 4, and the water tank needs to be replenished. After the user sees the prompt message that water needs to be added, he / she will know that water needs to be added to the water tank, so that there is no need to mechanically open the paper towel dispenser to check whether the water tank needs to be replenished.

[0050] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A water supply system, comprising a water tank, a first water supply pipe, a water pump, a boiler, and a second water supply pipe, characterized in that, The water pump and the boiler are arranged in the same straight line direction. One end of the first water supply pipe is connected to the inside of the water tank, and the other end of the first water supply pipe is connected to the water pump. The water pump has a first inlet and a first outlet. The outlet of the first inlet pipe is connected to the first inlet, and the first outlet is connected to the boiler. The furnace body has a concave portion along its length. A concave position plate is provided on one side of the concave portion. A water guide pipe is installed on the concave position plate. The water guide pipe is connected to the first water inlet end. The first water inlet pipe is arranged in the concave portion and connected to the first water inlet end through the water guide pipe to supply water to the water pump. The boiler has a second water outlet, which is used to connect to the second water supply pipe.

2. The water supply system according to claim 1, characterized in that: in, The boiler includes a connecting part, a furnace body, and a heating assembly. The connecting component is used to connect and install the water pump and the furnace body. One end of the furnace body has a sealing plate, and the other end of the furnace body has an opening. The sealing plate is provided with a second water outlet. The docking component includes a docking plate and a second water inlet. The docking plate is disposed between the water pump and the boiler. The second water inlet is connected to the first water outlet and communicates with the internal space of the boiler body through the opening.

3. The water supply system according to claim 2, characterized in that: in, The docking plate has through holes for installing the water pipe.

4. The water supply system according to claim 2, characterized in that: in, A sealing ring is provided at the opening position to seal the opening.

5. The water supply system according to claim 2, characterized in that: in, The docking plate is provided with mounting columns, which are installed into the internal space of the furnace body. The mounting column has a hollow structure inside, and the internal space of the hollow mounting column is connected to the second water inlet. The mounting column has a water outlet hole, and the water in the water outlet hole flows out into the internal space of the furnace body.

6. The water supply system according to any one of claims 2-5, characterized in that: in, The heating assembly includes a heating element and a temperature detection sensor. The heating element and temperature detection sensor are both installed along the length of the furnace body.

7. The water supply system according to claim 6, characterized in that: in, The heating assembly also includes the combined fixing plate and the combined fixing screw. The heating element has a first wiring fixing terminal, and the temperature detection sensor has a second wiring fixing terminal. Both the first and second wiring fixing terminals are located on the outer side of the furnace body, and both are in contact with the combined fixing plate. The combined fixing plate is provided with a first fixing hole, a second fixing hole and a third fixing hole. The outer rings of the first fixing hole and the second fixing hole are used to press the first wiring fixing end and the second wiring fixing end respectively. The combined fixing screw passes through the third fixing hole and penetrates into the furnace body to connect and fix with the mounting column.

8. The water supply system according to claim 1, characterized in that: in, The water pump and the boiler are arranged along the same axis.

9. Based on the water supply system according to any one of claims 1-8, a method for detecting the remaining water volume in a water tank is provided, characterized in that, The system calculates the temperature rise of the water inside the furnace within a preset time while the heating component is in the on state. The obtained temperature rise is compared with a preset value. If the temperature rise does not exceed the preset value, it indicates that the heating component is in a dry-burning state inside the furnace, and a prompt message is given to indicate that the water tank needs to be replenished.

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