Water dispenser based on capacitive non-contact liquid level sensor

Abstract

The invention relates to the technical field of water dispensers, and particularly discloses a water dispenser based on a capacitive non-contact liquid level sensor, which comprises a water dispenser main body, a liquid inlet hole is formed in the top end of the water dispenser main body, a water outlet pipe is fixedly connected in the water dispenser main body, and the back surface of the water dispenser main body is fixedly connected with a fixing plate through a fixing screw. A fixing plate is installed on the back face of a water dispenser body, an assembling vertical plate is installed on the fixing plate, a lifting block slides on the assembling vertical plate, the lifting block is arranged on the assembling vertical plate through an adsorption assembly, and a liquid level sensor is installed on one side of the lifting block in a non-contact mode. The liquid level sensor is adjusted to the monitored position, the position of the liquid level sensor is flexibly adjusted, it is ensured that the sensor can accurately sense the change of the water level in the barrel all the time, early warning is given out before the water level is low to the dangerous level, the dry burning phenomenon is effectively prevented, and the stability and safety of operation of the water dispenser are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of water dispensers, in particular to a water dispenser based on a capacitive non-contact liquid level sensor. Background Art

[0002] A water dispenser is usually equipped with a water storage barrel or a water tank. Users only need to connect the water source to the water dispenser and turn on the power supply to start using it. When using it, they can choose hot or cold water as needed.

[0003] Existing bottled water dispensers generally lack a complete water level monitoring mechanism in their design, which leads to a potential safety hazard. As the bottled water is used for a longer time, when the water volume gradually decreases to near exhaustion, if the user fails to discover and replace the new bucket in time, the water dispenser may have problems due to the lack of effective water level monitoring, which may not only damage the heating element of the water dispenser and shorten the service life of the equipment, but may also cause serious safety accidents such as fire, posing a threat to the safety of users' lives and property. Summary of the invention

[0004] The object of the present invention is to provide a water dispenser based on a capacitive non-contact liquid level sensor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides a water dispenser based on a capacitive non-contact liquid level sensor, comprising a water dispenser body, a liquid inlet hole is provided at the top of the water dispenser body, a water outlet pipe is fixedly connected inside the water dispenser body, a fixing plate is fixedly connected to the back of the water dispenser body by fixing screws, a mounting assembly is provided on one side of the fixing plate, a mounting vertical plate is connected to one side of the fixing plate by the mounting assembly, a driving assembly is provided on one side of the fixing plate located at the mounting assembly, a first slide groove is provided inside the mounting vertical plate, a first slider is slidably connected inside the first slide groove, adsorption assemblies are provided on both sides of the first slider, and a lifting block is provided on the side of the first slider away from the adsorption assembly. The lifting block is internally slidably connected with a moving block, and one end of the moving block away from the assembly vertical plate is fixedly connected with a liquid level sensor body, and the liquid level sensor is movably connected above the liquid inlet hole. A positioning assembly is provided on one side of the lifting block, and the moving block is movably connected to the lifting block through the positioning assembly. By setting up a water level monitoring mechanism, a warning can be issued in time when the water volume of the bottled water is close to being exhausted, thereby avoiding the risk of fire caused by dry burning and ensuring the safety of users' lives and properties. Timely water level monitoring can prevent the water dispenser from operating in a water shortage state, thereby avoiding damage to the heating element and extending its service life. The remaining water volume in the bucket can be understood in time, so as to arrange to replace the new bucket in advance and avoid the inconvenience caused by water shortage.

[0006] Furthermore, a guide rod is fixedly connected to the interior of the first sliding groove, and the first sliding block is slidably connected to the guide rod.

[0007] Furthermore, the adsorption assembly includes a connecting rod, which is fixedly connected to the side of the first slider close to the lifting block, and two connecting rods are symmetrically arranged on the lifting block. The side of the connecting rod away from the lifting block is fixedly connected to an assembly slider, and the assembly slider is fixedly connected to an electromagnet, which is magnetically connected to the assembly vertical plate.

[0008] Furthermore, adsorption grooves are provided on both sides of the first sliding groove on the fixed plate, and the electromagnet is magnetically connected to the adsorption grooves.

[0009] Furthermore, the positioning assembly includes a second slide groove, the second slide groove is opened on one side of the lifting block, the second slide groove is slidably connected to the inside of the second slide groove, both sides of one end of the second slide block are fixedly connected to return springs, the end of the return spring close to the lifting block is fixedly connected to a fitting block, the fitting block is slidably connected to the second slide block, a rubber strip is fixedly connected to one side of the lifting block close to the fitting block, and one side of the fitting block is movably connected to one side of the rubber strip.

[0010] Furthermore, the mounting assembly includes a mounting slot, which is opened inside the fixed plate, and the mounting slot is movably connected inside with a mounting plug, the top of the mounting plug is fixedly connected to the bottom of the mounting plate, the mounting slot is slidably connected inside with a positioning rod, and two positioning rods are provided, the positioning rod is movably connected to the mounting plug, and second sliding grooves are opened on both sides of the mounting slot on the fixed plate, the second sliding groove is slidably connected inside with a second slider, and one side of the second slider is fixedly connected to one side of the positioning rod.

[0011] Furthermore, the driving assembly includes a first shaft rod, which is rotatably connected to a side of the fixing plate away from the mounting slot, and a handle is fixedly connected to the side of the first shaft rod extending out of the fixing plate, and first tooth cones are fixedly connected to both sides of the first shaft rod, and a second tooth cone is meshingly connected to one side of the first tooth cone, and a screw rod is rotatably connected to the inside of the second slide groove, and the positioning rod is threadedly connected to the screw rod.

[0012] Furthermore, a second shaft rod is fixedly connected to one side of the second tooth cone, a third tooth cone is fixedly connected to the side of the second shaft rod away from the second tooth cone, a fourth tooth cone is meshingly connected to one side of the third tooth cone, and the fourth tooth cone is fixedly connected to the screw rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Firstly, in the present invention, a fixed plate is installed on the back of the water dispenser body, an assembly vertical plate is installed on the fixed plate, a lifting block is slid on the assembly vertical plate, and the lifting block is arranged on the assembly vertical plate through an adsorption component. A liquid level sensor is non-contactly installed on one side of the lifting block. After the pipe head of the bottled water is inserted into the liquid inlet hole of the water dispenser body, the liquid level sensor is adjusted to the monitored position, and the position of the liquid level sensor is flexibly adjusted to ensure that the sensor can always accurately sense the changes in the water surface in the barrel, and issue an early warning before the water level drops to a dangerous level, thereby effectively preventing the occurrence of dry burning and ensuring the stability and safety of the water dispenser operation.

[0015] Secondly, in the present invention, by arranging a mounting assembly and a driving assembly on the water dispenser body, the assembly vertical plate is fixed on the fixed plate through the mounting assembly, and the driving assembly can be used to make the mounting assembly work, that is, the assembly vertical plate is no longer connected and fixed to the fixed plate, so that the assembly vertical plate can be quickly removed from the water dispenser body, which is convenient for the inspection and maintenance of the removed liquid level sensor, and also ensures the reusability of the liquid level sensor installation structure, thereby realizing efficient use of resources.

[0016] Thirdly, in the present invention, after the bottled water is installed on the main body of the water dispenser, the user can adjust the position of the moving block through the positioning assembly, so that the moving block drives the liquid level sensor to move, and the liquid level sensor contacts the outer wall of the bottled water, so as to accurately sense the change in capacitance value, which not only improves the accuracy of liquid level detection, but also brings a more convenient and efficient use experience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the test structure in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the adsorption component in the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the fixed plate in the present invention;

[0022] Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0023] Figure 7 It is a schematic diagram of the structure of the positioning component in the present invention;

[0024] Figure 8 For the present invention Figure 5 Schematic diagram of the enlarged structure at B.

[0025] In the figure: 1, water dispenser body; 2, water outlet pipe; 3, liquid inlet hole; 4, fixing plate; 5, fixing screw; 6, assembly vertical plate; 7, first slide groove; 71, guide rod; 8, first slider; 9, adsorption assembly; 91, connecting rod; 92, assembly slider; 93, electromagnet; 94, adsorption groove; 10, lifting block; 11, moving block; 12, liquid level sensor body; 13, positioning assembly; 131, second slide groove; 132, second slider; 1 33. Fitting block; 134. Return spring; 135. Rubber strip; 14. Mounting assembly; 141. Mounting slot; 142. Mounting plug; 143. Positioning rod; 144. Third slider; 145. Third slide groove; 16. Driving assembly; 161. First shaft rod; 162. First tooth cone; 163. Second tooth cone; 164. Second shaft rod; 165. Third tooth cone; 166. Fourth tooth cone; 167. Handle; 168. Screw rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 8In an embodiment of the present invention, a water dispenser based on a capacitive non-contact liquid level sensor comprises a water dispenser body 1, a liquid inlet hole 3 is provided at the top of the water dispenser body 1, a water outlet pipe 2 is fixedly connected inside the water dispenser body 1, a fixing plate 4 is fixedly connected to the back of the water dispenser body 1 by fixing screws 5, a mounting assembly 14 is provided on one side of the fixing plate 4, a mounting vertical plate 6 is connected to one side of the fixing plate 4 by the mounting assembly 14, a driving assembly 16 is provided on one side of the fixing plate 4 located at the mounting assembly 14, a first slide groove 7 is provided inside the mounting vertical plate 6, a first slider 8 is slidably connected inside the first slide groove 7, adsorption assemblies 9 are provided on both sides of the first slider 8, a lifting block 10 is provided on the side of the first slider 8 away from the adsorption assembly 9, a moving block 11 is slidably connected inside the lifting block 10, and a liquid level sensor body is fixedly connected to the end of the moving block 11 away from the mounting vertical plate 6, and a non-contact liquid level sensor using an optical principle works on the basis of detecting light emitted by a transmitting tube inside the sensor. Liquid level, these light rays are refracted back to the receiver through the prism. When there is no water, the light rays will be completely refracted back to the receiver. When there is water, the light rays will be refracted into the liquid, and only a small amount of light or no light will be reflected back to the receiver. The liquid level sensor is movably connected above the liquid inlet hole 3. A positioning component 13 is provided on one side of the lifting block 10. The moving block 11 is movably connected to the lifting block 10 through the positioning component 13. By setting a water level monitoring mechanism, a warning can be issued in time when the amount of water in the bottled water is close to being exhausted, avoiding the risk of fire caused by dry burning, and ensuring the safety of user life and property. Timely water level monitoring can prevent the water dispenser from running in a water shortage state, thereby avoiding damage to the heating element and extending its service life. The remaining water in the bucket can be understood in time, so as to arrange to replace the new bucket in advance, avoiding the inconvenience caused by water shortage, facilitating the inspection and maintenance of the removed liquid level sensor, and ensuring the reusability of the liquid level sensor installation structure, realizing efficient utilization of resources, and making the liquid level sensor contact the outer wall of the bottled water so as to accurately sense the change in capacitance value.

[0028] See also Figure 4 A guide rod 71 is fixedly connected to the inside of the first slide groove 7, and the first slider 8 is slidably connected to the guide rod 71; by setting the guide rod 71, the first slider 8 can slide more stably in the first slide groove 7 and can prevent the first slider 8 from falling out of the first slide groove 7.

[0029] See also Figure 4, the adsorption component 9 includes a connecting rod 91, the connecting rod 91 is fixedly connected to the side of the first slider 8 close to the lifting block 10, and the connecting rod 91 is symmetrically provided with two lifting blocks 10, the connecting rod 91 is fixedly connected to the side away from the lifting block 10 with an assembly slider 92, the assembly slider 92 is fixedly connected with an electromagnet 93, the electromagnet 93 is magnetically connected to the assembly vertical plate 6, and adsorption grooves 94 are provided on both sides of the first slide groove 7 on the fixed plate 4, and the electromagnet 93 is magnetically connected to the adsorption groove 94; by setting the adsorption component 9, the first slider 8 slides in the first slide groove 7, so that the first slider 8 drives the connecting rod 91 to move, and the connecting rod 91 drives the assembly slider 92 to slide in the adsorption groove 94, when the height adjustment of the liquid level sensor body 12 is completed, the electromagnet 93 is energized and adsorbed in the adsorption groove 94, so that the lifting block 10 is fixed, thereby fixing the position of the sensor body, and it should be noted that the assembly vertical plate 6 is made of metal.

[0030] See also Figure 7 The positioning assembly 13 includes a second slide groove 131, which is opened on one side of the lifting block 10. A second slider 132 is slidably connected inside the second slide groove 131. Both sides of one end of the second slider 132 are fixedly connected with a return spring 134. An end of the return spring 134 close to the lifting block 10 is fixedly connected with a fitting block 133. The fitting block 133 is slidably connected to the second slider 132. A rubber strip 135 is fixedly connected to one side of the lifting block 10 close to the fitting block 133. 3 is movably connected with one side of the rubber strip 135; by setting the positioning component 13, the fitting block 133 is pushed to deform the reset spring 134, and at this time, the second sliding block 132 is pushed to slide in the second sliding groove 131, so that the moving block 11 slides in the lifting block 10, so that the moving block 11 drives the liquid level sensor body 12 to move and contact the outer wall of the bottled water, and then the fitting block 133 is released. At this time, the reset spring 134 is reset, and the fitting block 133 contacts the rubber strip 135 to prevent the fitting block 133 from sliding, so that the liquid level sensor body 12 can be attached to the outer wall of the bottled water.

[0031] See also Figure 5 and Figure 8The mounting assembly 14 includes a mounting slot 141, which is provided inside the fixing plate 4. A mounting plug block 142 is movably connected inside the mounting slot 141. The top of the mounting plug block 142 is fixedly connected to the bottom of the mounting plate. A positioning rod 143 is slidably connected inside the mounting slot 141, and two positioning rods 143 are provided. The positioning rod 143 is movably connected to the mounting plug block 142. A third slide groove 145 is provided on both sides of the mounting slot 141 on the fixing plate 4. A third slider 1 is slidably connected inside the third slide groove 145. 44, one side of the third slider 144 is fixedly connected to one side of the positioning rod 143; by setting the mounting component 14, the bottom end of the mounting vertical plate 6 is fixed with the mounting plug block 142, and the mounting plug block 142 is inserted into the mounting slot 141 of the fixed plate 4, so that the mounting vertical plate 6 is installed on the water dispenser body 1, and the third slider 144 slides in the third slide groove 145, so that the third slider 144 drives the positioning rod 143 to move, so that the positioning rod 143 can be inserted into the mounting plug block 142, and the mounting plug block 142 is prevented from being separated from the mounting slot 141, so that the mounting vertical plate 6 can be fixed on the water dispenser body 1.

[0032] See also Figure 8 The driving assembly 16 includes a first shaft rod 161, which is rotatably connected to a side of the fixing plate 4 away from the installation slot 141. A handle 167 is fixedly connected to the side of the first shaft rod 161 extending out of the fixing plate 4. Both sides of the first shaft rod 161 are fixedly connected to first tooth cones 162, one side of the first tooth cone 162 is meshedly connected to a second tooth cone 163, the inside of the second slide groove 131 is rotatably connected to a screw rod 168, the positioning rod 143 is threadedly connected to the screw rod 168, one side of the second tooth cone 163 is fixedly connected to a second shaft rod 164, and a side of the second shaft rod 164 away from the second tooth cone 163 is fixedly connected to a third tooth cone 165, and one side of the third tooth cone 165 is meshedly connected to A fourth tooth cone 166 is connected, and the fourth tooth cone 166 is fixedly connected to the screw rod 168; by setting the driving component 16, the handle 167 is turned, the handle 167 drives the first shaft rod 161 to rotate, the first shaft rod 161 drives the two first tooth cones 162 to rotate, so that the first tooth cone 162 drives the second tooth cone 163 to rotate, the second tooth cone 163 drives the second shaft rod 164 to rotate, the second shaft rod 164 drives the third tooth cone 165 to rotate, the third tooth cone 165 drives the fourth tooth cone 166 to rotate, so that the fourth tooth cone 166 drives the screw rod 168 to rotate, drive the positioning rod 143 to move, so that the positioning rod 143 is inserted into the mounting plug block 142, so that the mounting plug block 142 is fixed in the mounting slot 141, and the assembly vertical plate 6 is prevented from falling off the fixed plate 4.

[0033] The working principle of the present invention is as follows: the user pushes the fitting block 133, and the fitting block 133 presses the reset spring 134 to make it leave the lifting block 10, and at this time, the second slider 132 is pushed to slide in the second slide groove 131, driving the moving block 11 to move, so that the moving block 11 drives the liquid level sensor body 12 to move away from the liquid inlet hole 3, and the bottled water is placed in the liquid inlet hole 3 and stands on the water dispenser body 1, and at this time, the first slider 8 is pushed to move on the guide rod 71 of the first slide groove 7, so that the first slider 8 moves stably, and the first slider 8 drives the lifting block 10 to move, thereby The moving block 11 drives the liquid level sensor body 12 to move and adjust its monitoring position. During this process, the assembly slider 92 slides in the adsorption groove 94. After the height adjustment of the liquid level sensor body 12 is completed, the electromagnet 93 is energized and adsorbed by the adsorption groove 94 to fix the position of the liquid level sensor body 12, allowing the user or the system to flexibly adjust the position of the liquid level sensor body 12 according to the actual height of the bottled water, ensuring that the sensor can always accurately sense the changes in the water surface in the barrel. When the bottled water is gradually consumed and the water surface drops, the non-contact liquid level sensor can capture this change in real time and convert it into an electrical signal for processing. Once the water level drops below the preset safety threshold, the system can automatically trigger an alarm to remind the user to replace the water bucket in time, thereby effectively avoiding the dry burning problem that may be caused by the water dispenser continuing to work in a waterless state, ensuring the stability and safety of the water dispenser operation. When the liquid level sensor body 12 needs to be removed, the handle 167 is turned to drive the first shaft rod 161 to rotate, and the first shaft rod 161 drives the two first tooth cones 162 to rotate, so that the first tooth cone 162 drives the second tooth cone 163 to rotate, and the second tooth cone 1 63 drives the second shaft rod 164 to rotate, the second shaft rod 164 drives the third gear cone 165 to rotate, the third gear cone 165 drives the fourth gear cone 166 to rotate, so that the fourth gear cone 166 drives the screw rod 168 to rotate, driving the positioning rod 143 to move, so that the positioning rod 143 leaves the mounting block 142, and the mounting block 142 is separated from the mounting slot 141, so that the assembly vertical plate 6 can be removed from the fixed plate 4, which is convenient for the inspection and maintenance of the removed liquid level sensor, and also ensures the reusability of the liquid level sensor installation structure, and realizes the efficient use of resources.

Claims

1. A water dispenser based on a capacitive non-contact liquid level sensor, characterized in that: The water dispenser body comprises a water dispenser main body, the top of the water dispenser main body is provided with a liquid inlet hole, the water dispenser main body is fixedly connected with a water outlet pipe, the back of the water dispenser main body is fixedly connected with a fixing plate by fixing screws, one side of the fixing plate is provided with a mounting assembly, one side of the fixing plate is connected with an assembly vertical plate through the mounting assembly, a driving assembly is provided on the fixing plate at a side of the mounting assembly, a first slide groove is provided inside the assembly vertical plate, a first slider is slidably connected inside the first slide groove, adsorption assemblies are provided on both sides of the first slider, a lifting block is provided on the side of the first slider away from the adsorption assembly, a moving block is slidably connected inside the lifting block, an end of the moving block away from the assembly vertical plate is fixedly connected with a liquid level sensor main body, the liquid level sensor is movably connected above the liquid inlet hole, a positioning assembly is provided on one side of the lifting block, and the moving block is movably connected to the lifting block through the positioning assembly.

2. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: A guide rod is fixedly connected inside the first sliding groove, and the first sliding block is slidably connected to the guide rod.

3. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: The adsorption component includes a connecting rod, which is fixedly connected to the side of the first slider close to the lifting block, and two connecting rods are symmetrically arranged on the lifting block. The side of the connecting rod away from the lifting block is fixedly connected to an assembly slider, and the assembly slider is fixedly connected to an electromagnet, which is magnetically connected to the assembly vertical plate.

4. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 3, characterized in that: The fixing plate is provided with adsorption grooves on both sides of the first sliding groove, and the electromagnet is magnetically connected to the adsorption grooves.

5. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: The positioning assembly includes a second slide groove, the second slide groove is opened on one side of the lifting block, the second slide groove is slidably connected to the inside of the second slide groove, both sides of one end of the second slide block are fixedly connected to return springs, the end of the return spring close to the lifting block is fixedly connected to a fitting block, the fitting block is slidably connected to the second slide block, a rubber strip is fixedly connected to one side of the lifting block close to the fitting block, and one side of the fitting block is movably connected to one side of the rubber strip.

6. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: The mounting assembly includes a mounting slot, which is opened inside the fixed plate. A mounting plug is movably connected inside the mounting slot. The top of the mounting plug is fixedly connected to the bottom end of the mounting plate. A positioning rod is slidably connected inside the mounting slot, and two positioning rods are provided. The positioning rod is movably connected to the mounting plug.

7. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 6, characterized in that: The fixing plate is provided with second sliding grooves on both sides of the installation slot, the interior of the second sliding groove is slidably connected with a second slider, and one side of the second slider is fixedly connected to one side of the positioning rod.

8. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 7, characterized in that: The driving assembly includes a first shaft rod, which is rotatably connected to a side of a fixing plate away from a mounting slot, a side of the first shaft rod extending out of the fixing plate is fixedly connected to a handle, both sides of the first shaft rod are fixedly connected to a first tooth cone, one side of the first tooth cone is meshingly connected to a second tooth cone, a screw rod is rotatably connected inside the second slide groove, and the positioning rod is threadedly connected to the screw rod.

9. A water dispenser based on a capacitive non-contact liquid level sensor according to claim 8, characterized in that: One side of the second tooth cone is fixedly connected to a second shaft rod, a side of the second shaft rod away from the second tooth cone is fixedly connected to a third tooth cone, one side of the third tooth cone is meshingly connected to a fourth tooth cone, and the fourth tooth cone is fixedly connected to the screw rod.

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