Water tank capable of displaying water level and water tank truck

Abstract

The utility model relates to the technical field of environmental sanitation equipment, in particular to a water tank capable of displaying the water level and a water tank truck. A water tank capable of displaying the water level comprises a water tank body and further comprises a measuring loop, the measuring loop comprises a display meter and a slide rheostat, and the change of the resistance value of the slide rheostat can drive the change of the indicating value of the display meter; the pressure sensing component is arranged on the bottom face of the water tank body and connected to a sliding piece of the sliding rheostat, the pressure sensing component can be driven to move or deform by weight change of water contained in the water tank body, and the sliding piece of the sliding rheostat can be driven to move along a resistance wire of the sliding rheostat by displacement or deformation of the pressure sensing component. The utility model relates to a water tank capable of displaying a water level, which solves the problem in the prior art that the measurement result is inaccurate due to the fact that a floater is arranged on the water surface to measure the water quantity in the conventional device for displaying the water quantity of a water tank body, but the floater moves up and down along with the shaking of the water surface.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitation equipment, in particular to a water tank displaying water level and a water tank truck. Background Art

[0002] Water tankers, also known as sprinkler trucks, sanitation trucks, firefighting water supply trucks, or agricultural irrigation trucks, are specialized vehicles designed to transport and distribute large quantities of water. They are widely used for a variety of applications, including urban street cleaning, dust suppression during road construction, firefighting and rescue operations, landscaping, farmland irrigation, and emergency water supply.

[0003] The water level indicator of the existing water tank is usually equipped with a float on the water surface to determine the amount of water inside the water tank. However, the water tank of the water tank truck will shake during the travel of the water tank truck, making the measurement result inaccurate. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art devices for displaying the water level in water tanks, which mostly measure the water level by setting a float on the water surface. However, the float will move up and down with the shaking of the water surface, making the measurement result inaccurate. The utility model provides a water tank and a water tanker that display the water level.

[0005] In a first aspect, the present invention provides a water tank for displaying water level, comprising a water tank body and further comprising:

[0006] A measuring circuit, comprising a display meter and a sliding rheostat, wherein a change in the resistance of the sliding rheostat can drive a change in the indicated value of the display meter;

[0007] A pressure-sensing component is arranged on the bottom surface of the water tank body, and the pressure-sensing component is connected to the slider of the sliding rheostat. The change in the weight of the water inside the water tank body can drive the pressure-sensing component to undergo displacement or deformation. The change in displacement or deformation of the pressure-sensing component can drive the slider of the sliding rheostat to move along the resistance wire of the sliding rheostat.

[0008] The measurement circuit in this application is similar to the measurement circuit that displays the amount of oil remaining in the fuel tank of a car. The display meter can display the amount of water in the water tank through an ammeter, voltmeter or multimeter.

[0009] When there is water in the water tank, the weight of the water in the water tank can cause the pressure-sensitive component to generate a corresponding displacement or a corresponding deformation amount, so that the resistance of the sliding rheostat reaches a corresponding resistance value, enabling the display meter to display the water volume in the water tank. When the water volume in the water tank body increases or decreases, the pressure-sensitive component will further drive the sliding component to drive the sliding piece of the sliding rheostat to move along the resistance wire, thereby being able to change the resistance value of the sliding rheostat and drive the indication value of the display meter to change. The operator can determine whether the water volume in the water tank increases or decreases according to the change of the indication value of the display meter. Compared with the prior art of setting a float inside the water tank and measuring the water volume through the water surface inside the water tank, in this device, the pressure-sensitive device is arranged at the bottom surface of the water tank body, and the reading is determined by the weight of the water inside the water tank body, as much as possible avoiding the inaccurate measurement results caused by the shaking of the water surface.

[0010] Preferably, the pressure-sensitive component includes a piston, the top surface of the piston is communicated with the water tank body, and one end of the piston away from the water tank body is connected to the sliding piece of the sliding rheostat.

[0011] The pressure-sensitive component is set in the form of a piston, and the top surface of the piston is communicated with the water tank body, then the increase or decrease of the water volume inside the water tank body will drive the displacement of the piston. The displacement of the piston drives the sliding piece of the sliding rheostat to move, thereby changing the resistance value of the sliding rheostat.

[0012] Preferably, the piston is connected with an elastic element. When the water volume inside the water tank body decreases, the reset of the elastic element can drive the piston to move towards the water tank body.

[0013] When the sliding rheostat moves away from the water tank body, the elastic element can be compressed and can also be stretched. With such a setting, when the water volume inside the water tank body decreases, the piston can generate a corresponding displacement towards the water tank body, ensuring the measurement accuracy as much as possible.

[0014] Preferably, the pressure-sensitive component includes an impermeable elastic film, and the center of the impermeable elastic film is connected to the sliding rheostat.

[0015] By setting an impermeable elastic film, the increase or decrease of the water volume inside the water tank body will drive the deformation of the elastic film. The deformation of the elastic film drives the sliding piece of the sliding rheostat to move, thereby changing the resistance value of the sliding rheostat.

[0016] Preferably, the impermeable elastic film is a metal component.

[0017] The elastic component can be aluminum alloy, copper-nickel alloy or copper-chromium alloy. Setting a metal elastic film is not easy to break and has a long service life.

[0018] Preferably, it further comprises an ammeter and a PLC controller, wherein the PLC controller is communicatively connected to the ammeter and the display meter respectively, and the PLC controller is used to convert the current reading of the ammeter into the water volume reading of the display meter.

[0019] Preferably, when the displacement or deformation of the pressure-sensing member is minimum, and when the displacement of the pressure-sensing member is maximum, the resistance value of the sliding resistor is greater than 0.

[0020] When the resistance of the sliding rheostat is proportional to the displacement or deformation, the resistance of the sliding rheostat is minimum when the pressure-sensing member and the displacement or deformation are minimum. When the resistance of the sliding rheostat is inversely proportional to the displacement or deformation, the resistance of the sliding rheostat is minimum when the pressure-sensing member and the displacement or deformation are maximum. Ensure that the minimum resistance of the sliding rheostat is greater than 0 to avoid short circuits as much as possible.

[0021] In a second aspect, the present invention provides a water tanker, comprising a water tank displaying a water level as described above.

[0022] Providing a water tank with a water level display as described above can minimize the possibility of inaccurate test results caused by the shaking of water in the tank.

[0023] Preferably, the display meter is arranged inside the cockpit of the vehicle body.

[0024] The display meter is set inside the cockpit for easy viewing by the driver.

[0025] Preferably, a buffering and shock-absorbing component is provided between the water tank body and the vehicle body.

[0026] A buffer and shock-absorbing component is provided between the water tank body and the vehicle body to minimize the shaking of water inside the water tank body, thereby avoiding affecting the deformation or displacement of the pressure-sensitive component.

[0027] Compared with the existing technology, the beneficial effects of the present invention are:

[0028] 1. The utility model provides a water tank that displays water level, comprising a measuring circuit and a pressure-sensitive component. The measuring circuit comprises a display meter and a sliding rheostat. Changes in the resistance value of the sliding rheostat can drive changes in the indication of the display meter; the pressure-sensitive component can undergo displacement or deformation changes according to changes in the weight of the water contained in the tank body. When the water tank is filled with water, the weight of the water contained in the water tank can cause the pressure-sensitive component to produce a corresponding displacement or deformation, thereby causing the resistance of the sliding rheostat to reach a corresponding resistance value, allowing the display meter to display the amount of water in the water tank. When the amount of water contained in the water tank body increases or decreases, the pressure-sensitive component will drive the sliding component to drive the slider of the sliding resistor to move along the resistance wire, thereby changing the resistance value of the sliding resistor and causing the indication of the display meter to change. The operator can determine whether the amount of water in the water tank has increased or decreased based on the change in the displayed value. The pressure-sensing component is arranged on the bottom surface of the water tank body and produces displacement according to the weight of the water inside the water tank body. Compared with the existing technology of setting a float inside the water tank to measure the water volume through the water surface, this device avoids the measurement error caused by the shaking of the water surface as much as possible, and solves the problem that the existing devices for displaying the water volume of the water tank body in the prior art mostly measure the water volume by setting a float on the water surface, but the float will move up and down with the shaking of the water surface, making the measurement result inaccurate.

[0029] 2. The utility model provides a water tanker, comprising the above-mentioned water tank with water level display, which can minimize the inaccurate test results caused by the shaking of water in the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the principle of a water tank that displays water level in this utility model. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the principle of a water tank that displays water level in this utility model. Figure 2 ;

[0032] Figure 3 This is a schematic diagram of the principle of a water tank that displays water level in this utility model. Figure 3 ;

[0033] Figure 4 This is a schematic diagram of the principle of a water tank that displays water level in this utility model. Figure 4 ;

[0034] Figure 5 This is a schematic diagram of the principle of a water tank that displays water level in this utility model. Figure 5 ;

[0035] Figure 6 This is a structural diagram of a water tanker of the present utility model;

[0036] Icons: 1 - water tank body, 2 - piston, 3 - elastic film, 4 - sliding rheostat, 5 - display meter, 6 - vehicle body, 7 - buffer and shock-absorbing member. Detailed implementation

[0037] The present invention will be further described in detail below in combination with test examples and specific implementation manners. However, it should not be understood that the scope of the above-mentioned subject matter of the present invention is limited to the following embodiments. All technologies implemented based on the content of the present invention belong to the scope of the present invention.

[0038] In the description of the specific embodiments of the present invention, without special explanation, the expression terms of the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the invention product / device / equipment is usually used and placed. These terms of orientation or position relationship are only for the convenience of describing the solution of the present invention or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific position relationship. Therefore, it should not be understood as a limitation to the present invention.

[0039] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present invention.

[0040] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0041] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., or even more than 9.

[0042] Furthermore, in the description of the technical solution of the present invention, unless otherwise expressly specified, defined, or limited, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welded, riveted, bolted, threaded, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communicative; they may be direct, indirect via an intermediate medium, or internally connected between two components.

[0043] Example 1

[0044] like Figures 1 to 2 As shown, a water tank for displaying water level includes a water tank body 1 and further includes:

[0045] A measuring circuit, comprising a display meter 5 and a sliding rheostat 4, wherein a change in the resistance of the sliding rheostat 4 can drive a change in the indicated value of the display meter 5;

[0046] The pressure-sensing component is arranged on the bottom surface of the water tank body 1, and the pressure-sensing component is connected to the slider of the sliding rheostat 4. The weight change of the water inside the water tank body 1 can drive the pressure-sensing component to undergo displacement or deformation changes, and the displacement or deformation changes of the pressure-sensing component can drive the slider of the sliding rheostat 4 to move along the resistance wire of the sliding rheostat 4.

[0047] When the water tank is filled with water, the weight of the water in the water tank can cause the pressure-sensing component to produce a corresponding displacement or a corresponding deformation, so that the resistance of the sliding rheostat 4 reaches a corresponding resistance value, so that the display meter 5 can display the amount of water in the water tank. When the amount of water in the water tank body 1 increases or decreases, the pressure-sensing component will then drive the sliding component to drive the slider of the sliding resistor to move along the resistance wire, thereby changing the resistance value of the sliding resistor and causing the indication of the display meter 5 to change. The operator can determine the increase or decrease in the amount of water in the water tank based on the change in the indication of the display meter 5. Compared with the prior art that sets a float inside the water tank and measures the amount of water by the water surface inside the water tank, this device sets the pressure-sensing device on the bottom surface of the water tank body 1 and determines the reading by the weight of the water inside the water tank body 1, so as to avoid as much as possible the inaccurate measurement results caused by the shaking of the water surface.

[0048] In an optional embodiment, if Figure 1 and Figure 2As shown, the pressure-sensitive member includes a piston 2. The top surface of the piston 2 is in communication with the water tank body 1. One end of the piston 2 away from the water tank body 1 is connected to the sliding contact of the sliding rheostat 4. In this embodiment, the piston 2 is rigidly connected to the sliding contact of the sliding rheostat 4 to ensure that the moving distance of the sliding contact is proportional to the water volume in the water tank as much as possible. When there is water in the water tank body 1, as Figure 1 shown, the piston 2 moves away from the water tank body 1; when the water volume in the water tank body 1 is 0, as Figure 2 shown, the piston 2 returns to its initial position.

[0049] The piston 2 is connected to an elastic element ( Figures 1 - 6 not shown in the figure). When the water volume inside the water tank body 1 decreases, the elastic element resets and drives the piston 2 to move towards the water tank body. When the water volume in the water tank body 1 is 0, the elastic element drives the piston 2 back to its initial position and also drives the sliding contact of the sliding rheostat 4 to slide to the maximum resistance value, as Figure 2 shown. When the sliding rheostat 4 moves away from the water tank body 1, the elastic element can be compressed and also stretched. With such a setting, when the water volume inside the water tank body 1 decreases, the piston 2 can generate a corresponding displacement towards the water tank body 1. When the water volume inside the water tank body is 0, the piston can return to its initial position, which can ensure the measurement accuracy as much as possible.

[0050] In an alternative embodiment, an ammeter and a PLC controller are further included. The PLC controller is communicatively connected to the ammeter and the display 5 respectively. The PLC controller is used to convert the current reading of the ammeter into the water volume reading of the display 5. As Figure 1 and Figure 2 shown. In one or several embodiments, the ammeter can also be replaced with a voltmeter or a multimeter. When the display 5 is a voltmeter, its connection method is as Figure 5 shown; when the display 5 is a multimeter, its connection method is determined according to the function it realizes.

[0051] In actual use, the PLC controller can also be not provided, and the reading of the ammeter or voltmeter can be directly corresponding changed to the water volume reading.

[0052] In this embodiment, the resistance value of the sliding rheostat 4 is proportional to the water volume in the water tank body 1. However, in actual use, the connection method of the sliding rheostat 4 is not limited, and the resistance value of the sliding rheostat 4 can also be inversely proportional to the water volume in the water tank body 1.

[0053] When the displacement or deformation of the pressure-sensitive member is minimized, and when the displacement of the pressure-sensitive member is maximized, the resistance value of the rheostat 4 is greater than 0. When the resistance value of the rheostat 4 is proportional to the displacement or deformation, the resistance value of the rheostat 4 corresponding to the minimum displacement or deformation of the pressure-sensitive member is the smallest; when the resistance value of the rheostat 4 is inversely proportional to the displacement or deformation, the resistance value of the rheostat 4 corresponding to the maximum displacement or deformation of the pressure-sensitive member is the smallest. It is ensured that the resistance value of the rheostat 4 is greater than 0 when it is the smallest, so as to avoid short circuit as much as possible.

[0054] Embodiment 2

[0055] As Figures 3 to 4 shown, a water tank for displaying water level has a structure substantially the same as that of Embodiment 1, with the difference being that:

[0056] The pressure-sensitive member is an impermeable elastic film 3. The center of the impermeable elastic film 3 is rigidly connected to the rheostat 4. When the impermeable elastic film 3 is provided, the increase or decrease of the water volume inside the water tank body 1 will drive the deformation of the elastic film 3. The deformation of the elastic film 3 drives the movement of the sliding contact of the rheostat 4, thereby changing the resistance value of the rheostat 4.

[0057] The center of the impermeable elastic film 3 is rigidly connected to the rheostat 4. Since the deformation of the center of the elastic film 3 is more obvious, the change of the resistance value can be made more obvious as much as possible.

[0058] The impermeable elastic film 3 is a metal member. The elastic member can be aluminum alloy, copper-nickel alloy or copper-chromium alloy. By setting the elastic film 3 made of metal, it is not easy to break and has a long service life.

[0059] Embodiment 3

[0060] As Figure 6 shown, a water tanker includes a water tank for displaying water level in Embodiment 1 or Embodiment 2, and the display meter 5 is arranged inside the driver's cab of the vehicle body 6.

[0061] A buffer shock-absorbing member 7 is arranged between the water tank body 1 and the vehicle body 6. By arranging the buffer shock-absorbing member 7 between the water tank body 1 and the vehicle body 6, the sloshing of the water inside the water tank body 1 can be reduced as much as possible, so as to avoid affecting the deformation or displacement of the pressure-sensitive member.

[0062] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water tank for displaying water level, comprising a water tank body (1), characterized in that, Further comprising: A measuring circuit, the measuring circuit includes a display meter (5) and a sliding rheostat (4), and the change in the resistance value of the sliding rheostat (4) can drive the change in the indication value of the display meter (5); A pressure-sensitive member, the pressure-sensitive member is disposed on the bottom surface of the water tank body (1), the pressure-sensitive member is connected to the slide of the sliding rheostat (4), and the change in the weight of the water contained in the water tank body (1) can drive the displacement or deformation change of the pressure-sensitive member, and the displacement or deformation change of the pressure-sensitive member can drive the slide of the sliding rheostat (4) to move along the resistance wire of the sliding rheostat (4).

2. The water tank for displaying water level according to claim 1, wherein The pressure-sensitive member includes a piston (2), the top surface of the piston (2) is in communication with the water tank body (1), and one end of the piston (2) away from the water tank body (1) is connected to the slide of the sliding rheostat (4).

3. The water tank for displaying water level according to claim 2, wherein The piston (2) is connected with an elastic element. When the water volume inside the water tank body (1) decreases, the reset of the elastic element can drive the piston (2) to move towards the water tank body.

4. The water tank for displaying water level according to claim 1, characterized in that, The pressure-sensitive member includes a waterproof elastic film (3), and the center of the waterproof elastic film (3) is connected to the sliding rheostat (4).

5. The water tank for displaying water level according to claim 4, characterized in that, The waterproof elastic film (3) is a metal member.

6. A water tank for displaying water level according to any one of claims 1-5, characterized in that, It further includes an ammeter and a PLC controller. The PLC controller is respectively communicatively connected with the ammeter and the display meter (5), and the PLC controller is used to convert the current reading of the ammeter into the water volume reading of the display meter (5).

7. A water tank for displaying the water level according to any one of claims 1-5, characterized in that, When the displacement or deformation amount of the pressure-sensitive member is the smallest, and when the displacement of the pressure-sensitive member is the largest, the resistance value of the sliding rheostat (4) is greater than 0.

8. A water tanker, characterized in that, Comprising a water tank for displaying water level according to any one of claims 1-7.

9. A water tanker according to claim 8, characterized in that, The display meter (5) is disposed inside the driver's cab of the vehicle body (6).

10. A water tanker according to any one of claims 8-9, characterized in that, A buffer and shock-absorbing member (7) is disposed between the water tank body (1) and the vehicle body (6).

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