Water purifier based on capacitive non-contact liquid level sensor

Abstract

The invention relates to the technical field of water purifiers, and particularly discloses a water purifier based on a capacitive non-contact liquid level sensor, the water purifier comprises a water purifier main body, the right side of the water purifier main body is provided with a water outlet head, and the lower end of the water outlet head is symmetrically provided with water outlet pipes. When water is discharged through the water outlet pipe which does not pass through the water outlet head, the driving motor is started to operate, so that the output end drives the screw rod to rotate in the assembly shell, and the rotation of the screw rod enables the plugging plate in threaded connection with the outer side to slide towards the direction of the extension plate shell, so that the plugging plate can plug the lower end opening of the water outlet pipe to prevent dust from entering the water outlet pipe; and during water drinking, the driving motor drives the screw rod to reversely run, so that one end of the plugging plate retracts towards the assembly shell, and water can be discharged from the exposed part of the lower end of the water outlet pipe, so that the water outlet pipe of the water purifier main body can be effectively protected, and meanwhile, the problem of water quality pollution of the water purifier can be prevented to a certain extent.

Description

Technical Field

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

[0002] Water purifiers are indispensable household appliances in modern homes and offices. Through a multi-stage filtration system, they effectively remove impurities, residual chlorine, heavy metals, bacteria, viruses and other harmful substances in water to ensure the cleanliness and safety of drinking water. Using advanced filter technology, such as activated carbon and reverse osmosis membrane, water purifiers can provide pure drinking water that can be drunk directly without boiling, which is convenient and fast. In addition, its energy-saving and environmentally friendly design concept and low-noise operation bring users a comfortable life experience. Easy to install and low maintenance cost, it is an ideal choice to improve the quality of life and protect the health of your family.

[0003] In order to facilitate the monitoring of the water level in the water tank, traditional smart water purifiers on the market usually need to install a liquid level sensor on the water tank in the water purifier. The traditional installation method of capacitive non-contact liquid level sensors is mainly to install and fix them on the water tank through screw fasteners and two mounting ears on the sensor. Therefore, when the sensor fails and is damaged, it cannot be quickly removed from the water purifier for maintenance or replacement. Secondly, it is well known that the water outlet pipe of a traditional water purifier usually has no protective structure. If the water outlet pipe is in the air for a long time, it will often be contaminated with some dust, thereby affecting the water quality of the water purifier. Summary of the invention

[0004] The object of the present invention is to provide a water purifier 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 object, the present invention provides a water purifier based on a capacitive non-contact liquid level sensor, comprising a water purifier body, a water outlet head is arranged on the right side of the water purifier body, a water outlet pipe is symmetrically arranged at the lower end of the water outlet head, a protective mechanism is arranged at the lower end of the water outlet head, a side cover is arranged on the front side of the water purifier body, a water tank is fixedly installed on the inner side of the water purifier body, a connecting seat is fixedly installed on the front side of the water tank, a connecting groove is arranged on the front side of the connecting seat, a through hole is arranged on the inner side of the connecting groove, a wire groove is arranged at the notch of the connecting groove, a sensor body is plugged into the inner side of the connecting groove, a card slot is arranged on the outer side of the sensor body, a fixing mechanism is symmetrically arranged on the inner side of the connecting seat, the connecting seat is clamped with the card slot through the fixing mechanism, a resistance mechanism is symmetrically arranged on the inner side of the connecting groove, and the resistance mechanism and the sensor body are movably connected;

[0006] The protection mechanism comprises an assembly shell, which is fixedly mounted at the lower end of the water outlet head, a sliding hole is symmetrically opened on the inner side of the assembly shell, an extension plate shell is fixedly mounted on one side of the orifice of the sliding hole, the upper end of the extension plate shell is plugged with the lower end of the water outlet pipe, a blocking plate is slidably connected to the inner side of the extension plate shell, a driving motor is symmetrically fixedly mounted on the inner side of the assembly shell, a screw is fixedly mounted on the output end of the driving motor, one end of the blocking plate slides into the inner side of the assembly shell through the sliding hole, and the side of the blocking plate away from the extension plate shell is threadedly connected to one end of the screw;

[0007] The fixing mechanism comprises a first mounting cavity, the first mounting cavity is symmetrically arranged on the inner side of the connecting seat, the inner side of the first mounting cavity is slidably connected to a limiting plate, a clamping block is symmetrically fixedly installed on one side of the limiting plate, the clamping end of the clamping block is movably extended into the inner side of the connecting groove, a pull rod is fixedly installed on the side of the limiting plate away from the clamping block, a first spring is sleeved on one end of the pull rod close to the limiting plate, and a pull block is fixedly installed on the inner wall of the first mounting cavity on one end of the pull rod away from the first spring, and the clamping end of the clamping block is clamped with the clamping groove of the sensor body;

[0008] The interference mechanism includes a second mounting cavity and a movable block, the second mounting cavity is symmetrically opened on the inner side of the connecting seat, one end of the movable block is slidably connected to the inner side of the second mounting cavity, a countersunk groove is opened on the inner side of the connecting groove, the countersunk groove and one side of the cavity wall of the second mounting cavity are connected to each other, a contact plate is fixedly installed on one end of the movable block away from the second mounting cavity, a second spring is symmetrically fixedly installed between the movable block and the second mounting cavity, and the side of the contact plate away from the movable block is movably connected to the sensor body.

[0009] Furthermore, a connection frame is fixedly installed on the upper end of the assembly shell, and connection holes are symmetrically opened on the inner side of the connection frame. The connection frame is fixedly installed by screws penetrating the connection holes and the lower end of the water outlet head.

[0010] Furthermore, a slide groove is symmetrically provided on the inner side of the extension plate shell, one end of the notch of the slide groove extends to the inner side of the slide hole, and the side of the blocking plate and the slide groove are slidably connected.

[0011] Furthermore, the snap-in end of the card block is inclined toward one side of the connecting groove, a first limiting groove is symmetrically provided on the inner side of the first installation cavity, the end of the limiting plate is slidably connected to the inner side of the first limiting groove, and a pulling hole is provided on the inner side of the pulling block.

[0012] Furthermore, a second limiting groove is symmetrically opened on the inner side of the second installation cavity, one end of the movable block is slidably connected to the second limiting groove, and a guide rod is symmetrically fixedly installed on the inner side of the second installation cavity, one end of the guide rod is slidably connected to the inner side of the movable block, and one end of the guide rod movably passes through the middle part of the second spring.

[0013] Furthermore, a fixing plate is symmetrically fixedly connected to the outer side of the connecting seat, and fixing holes are symmetrically opened on the inner side of the fixing plate. The fixing plate is fixedly installed by screws penetrating the fixing holes and the water tank.

[0014] Furthermore, a fixing groove is provided on the front of the water purifier body, one end of the side cover is rotatably connected to the inner side of the fixing groove, magnets are symmetrically inlaid on the inner side of the fixing groove, the other end of the side cover is magnetically connected to the magnet, and a heat dissipation hole is provided on the inner side of the side cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First, in the present invention, when water is not discharged through the water outlet pipe of the water outlet head, the driving motor starts to run, so that the output end drives the screw to rotate in the assembly shell, and the rotation of the screw causes the sealing plate connected to the outer thread to slide toward the extension plate shell, so that the sealing plate can seal the lower end of the water outlet pipe to prevent dust from entering the water outlet pipe. When drinking water, the driving motor drives the screw to run in the reverse direction, so that one end of the sealing plate retracts toward the assembly shell. At this time, the exposed part of the lower end of the water outlet pipe can discharge water, thereby effectively protecting the water outlet pipe of the water purifier body, and at the same time, to a certain extent, preventing the water quality pollution of the water purifier;

[0017] Secondly, in the present invention, the sensor body is directly pushed into the connecting groove of the connecting seat. During the pushing process, the sensor body squeezes the inclined surface of the card block in the connecting groove. At the same time, the limit plate connected to the card block slides in the first installation cavity and squeezes the first spring on the outside of the pull rod until the position of the card block corresponds to the position of the card slot of the sensor body. At this time, the first spring pushes the card block connected to the limit plate into the card slot by resetting to quickly complete the fixation. When the sensor body is subsequently disassembled, replaced or maintained, it is only necessary to pull the pull block at the same time, and the pull rods connected by the pull block are spread apart from each other, so that the card block connected by the limit plate and the card slot can be separated, and then the sensor body can be quickly taken out from the connecting groove, thereby facilitating the disassembly and assembly of the sensor body on the water tank of the water purifier body.

[0018] Thirdly, in the present invention, during the installation of the sensor body, a pressure is applied to the contact plate in the connecting groove until the card block fixes the sensor body in the connecting groove, so that the contact plate is squeezed and pushed down into the countersunk groove, and at the same time, the movable block at the lower end of the contact plate slides in the second installation cavity and compresses the second spring. When disassembling, once the card block is separated from the card slot on the sensor body, the second spring will perform elastic reset and the contact plate connected by the movable block will push the sensor body out of the connecting groove, thereby further facilitating the disassembly of the sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a side view of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the installation of the connecting base and the sensor body in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the conflict mechanism in the present invention;

[0024] Figure 6 For the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 7 A bottom view of the protection mechanism of the present invention;

[0026] Figure 8 It is a schematic diagram of the internal structure of the assembly shell in the present invention.

[0027] In the figure: 1. Water purifier body; 2. Water outlet pipe; 3. Protective mechanism; 301. Extension plate shell; 302. Blocking plate; 303. Assembly shell; 304. Screw; 305. Drive motor; 306. Slide hole; 4. Water outlet head; 5. Side cover; 501. Heat dissipation hole; 502. Fixing groove; 503. Magnet; 6. Water tank; 7. Connecting seat; 701. Connecting groove; 702. Through hole; 703. Wire groove; 8. Sensor body; 9. Fixing mechanism; 901. First spring ; 902, pull block; 903, pull rod; 904, first installation cavity; 905, limit plate; 906, clamping block; 10, pull hole; 11, clamping slot; 12, interference mechanism; 121, second installation cavity; 122, countersunk slot; 123, movable block; 124, contact plate; 125, second spring; 13, first limit slot; 14, second limit slot; 15, guide rod; 16, fixing plate; 17, fixing hole; 18, slide slot; 19, connecting frame; 20, connecting hole. DETAILED DESCRIPTION

[0028] Example

[0029] See also Figure 1-Figure 8In an embodiment of the present invention, a water purifier based on a capacitive non-contact liquid level sensor includes a water purifier body 1, a water outlet head 4 is provided on the right side of the water purifier body 1, a water outlet pipe 2 is symmetrically provided at the lower end of the water outlet head 4, a protective mechanism 3 is provided at the lower end of the water outlet head 4, a side cover 5 is provided on the front of the water purifier body 1, a water tank 6 is fixedly installed on the inner side of the water purifier body 1, a connecting seat 7 is fixedly installed on the front of the water tank 6, a connecting groove 701 is provided on the front of the connecting seat 7, a through hole 702 is provided on the inner side of the connecting groove 701, a wire groove 703 is provided at the notch of the connecting groove 701, a sensor body 8 is plugged into the inner side of the connecting groove 701, a card slot 11 is provided on the outer side of the sensor body 8, and a connecting groove 701 is provided on the inner side of the connecting groove 701. A fixing mechanism 9 is symmetrically arranged on the inner side of the seat 7, and the connecting seat 7 is connected with the fixing mechanism 9 and the card slot 11 by the fixing mechanism 9. A resistance mechanism 12 is symmetrically arranged on the inner side of the connecting slot 701, and the resistance mechanism 12 and the sensor body 8 are movably connected; the water purifier body 1 is a relatively mature prior art product on the market, and its basic functions and usage principles are well known to the general public, so no further elaboration is made here; the model of the sensor body 8 is specifically XKC-Y28, a capacitive non-contact liquid level sensor, and the water purifier body 1 includes a raw water tank 6 and a clean water tank 6, and the sensor body 8 is installed on the corresponding raw water tank 6 and the clean water tank 6, and can detect the high water level and low water level of the raw water tank 6 and the clean water tank 6;

[0030] The protection mechanism 3 includes an assembly shell 303, which is fixedly mounted at the lower end of the water outlet head 4. A sliding hole 306 is symmetrically opened on the inner side of the assembly shell 303. An extension plate shell 301 is fixedly mounted on one side of the opening of the sliding hole 306. The upper end of the extension plate shell 301 is plugged into the lower end of the water outlet pipe 2. A blocking plate 302 is slidably connected to the inner side of the extension plate shell 301. A driving motor 305 is symmetrically fixedly mounted on the inner side of the assembly shell 303. The output end of the driving motor 305 is fixedly mounted. There is a screw rod 304, one end of the blocking plate 302 slides into the inner side of the assembly shell 303 through the sliding hole 306, and the side of the blocking plate 302 away from the extension plate shell 301 is threadedly connected to one end of the screw rod 304. In use, when water is not discharged through the outlet pipe 2 of the water outlet head 4, the drive motor 305 is started and operated, so that the output end drives the screw rod 304 to rotate in the assembly shell 303, and the rotation of the screw 304 causes the blocking plate 302 connected with the outer thread to move toward the extension plate shell 3 01 direction, so that the blocking plate 302 can block the lower end of the water outlet pipe 2 to prevent dust from entering the water outlet pipe 2. When drinking water, the driving motor 305 drives the screw rod 304 to run in the reverse direction, so that one end of the blocking plate 302 retracts toward the assembly shell 303. At this time, the exposed part of the lower end of the water outlet pipe 2 can discharge water, thereby effectively protecting the water outlet pipe 2 of the water purifier body 1, and at the same time, it can also prevent the water quality pollution of the water outlet of the water purifier to a certain extent; a control module is also provided at the water outlet head 4 of the water purifier body 1. When the machine is controlled to discharge water through the control module button, the control module will control the driving motor 305 to run in advance before the water is discharged, so that the blocking plate 302 is moved away. On the contrary, after releasing the button, the control module controls the driving motor 305 to run so that the blocking plate 302 completes the blocking of the outlet of the water outlet pipe 2; the assembly shell 303 is made of aluminum, and the material characteristics can also meet the heat dissipation of internal electrical components to a certain extent;

[0031] The fixing mechanism 9 includes a first installation cavity 904, which is symmetrically arranged on the inner side of the connecting seat 7. The inner side of the first installation cavity 904 is slidably connected to a limiting plate 905. A clamping block 906 is symmetrically fixedly installed on one side of the limiting plate 905. The clamping end of the clamping block 906 is movably extended into the inner side of the connecting groove 701. A pull rod 903 is fixedly installed on the side of the limiting plate 905 away from the clamping block 906. The end of the pull rod 903 close to the limiting plate 905 is sleeved with a first spring 901. The end of the pull rod 903 away from the first spring 901 slides through the inner wall of the first installation cavity 904 and is fixedly installed with a pull block 902. The clamping end of the clamping block 906 is clamped with the clamping groove 11 of the sensor body 8. During the initial installation, the connecting seat 7 is first installed on the water tank 6. When the sensor body 8 needs to be installed, the sensor body 8 only needs to be directly pushed into the connecting groove 701 of the connecting seat 7. During the pushing process, During the process, the sensor body 8 squeezes the inclined surface of the card block 906 in the connecting groove 701, and at the same time, the limiting plate 905 connected to the card block 906 slides in the first installation cavity 904 and squeezes the first spring 901 on the outer side of the pull rod 903, until the position of the card block 906 corresponds to the position of the card slot 11 of the sensor body 8. At this time, the first spring 901 pushes the card block 906 connected to the limiting plate 905 to be inserted into the card slot 11 through resetting to quickly complete the fixation. When the sensor body 8 is subsequently disassembled, replaced or maintained, it is only necessary to pull the pull block 902 at the same time, and the pull rod 903 connected by the pull block 902 is spread apart from each other, so that the pull rod 903 can be separated from the card slot 11 through the card block 906 connected by the limiting plate 905, and then the sensor body 8 can be quickly taken out from the connecting groove 701, so as to facilitate the disassembly and assembly of the sensor body 8 on the water tank 6 of the water purifier body 1.

[0032] The resistance mechanism 12 includes a second mounting cavity 121 and a movable block 123. The second mounting cavity 121 is symmetrically arranged on the inner side of the connecting seat 7. One end of the movable block 123 is slidably connected to the inner side of the second mounting cavity 121. A countersunk groove 122 is arranged on the inner side of the connecting groove 701. The countersunk groove 122 and one side of the cavity wall of the second mounting cavity 121 are interconnected. A contact plate 124 is fixedly installed on one end of the movable block 123 away from the second mounting cavity 121. A second spring 125 is symmetrically fixedly installed between the movable block 123 and the second mounting cavity 121. The side of the contact plate 124 away from the movable block 123 is movably connected to the sensor body 8. During the installation of the sensor body 8, a pressure is applied to the contact plate 124 in the connecting groove 701 until the contact plate 124 is in contact with the sensor body 8. The card block 906 fixes the sensor body 8 in the connecting groove 701, so that the contact plate 124 is squeezed and pushed down into the countersunk groove 122, and at the same time, the movable block 123 at the lower end of the contact plate 124 slides in the second mounting cavity 121 and compresses the second spring 125. When disassembling, once the card block 906 is separated from the card slot 11 on the sensor body 8, the second spring 125 will elastically reset and the contact plate 124 connected by the movable block 123 will push the sensor body 8 out of the connecting groove 701, thereby further facilitating the disassembly of the sensor body 8; through the cooperation of the contact structure, when disassembling, the user only needs to insert two fingers into the pull block 902 in a spread manner, and then cooperate with the resistance mechanism 12 to quickly remove the sensor body 8.

[0033] See also Figure 8 A connecting frame 19 is fixedly installed on the upper end of the assembly shell 303, and connecting holes 20 are symmetrically opened on the inner side of the connecting frame 19. The connecting frame 19 is fixedly installed by screws penetrating the connecting holes 20 and the lower end of the water outlet head 4. By using the connecting frame 19 with the connecting holes 20 on the assembly shell 303, the assembly shell 303 can be easily installed under the water outlet head 4.

[0034] See also Figure 7 A slide groove 18 is symmetrically opened on the inner side of the extension plate shell 301, and one end of the groove of the slide groove 18 extends to the inner side of the slide hole 306. The side of the blocking plate 302 and the slide groove 18 are slidably connected. By utilizing the slide groove 18 on the extension plate shell 301, one end of the blocking plate 302 can slide horizontally on the extension plate shell 301, thereby increasing the fitting effect with the lower end surface of the extension plate shell 301.

[0035] See also Figure 4The snap-in end of the card block 906 is inclined toward one side of the slot of the connecting slot 701, and the first limiting slot 13 is symmetrically provided on the inner side of the first installation cavity 904. The end of the limiting plate 905 is slidably connected to the inner side of the first limiting slot 13. A pulling hole 10 is provided on the inner side of the pulling block 902. The limiting plate 905 is slidably connected to the inner side of the first limiting slot 13 in the first installation cavity 904 to limit the movement of the limiting plate 905. When the limiting plate 905 moves from one end of the first limiting slot 13 to the other end when pulling the limiting plate 905, the card block 906 is separated from the card slot 11, thereby facilitating the disassembly operation of the sensor body 8.

[0036] See also Figure 5 A second limiting groove 14 is symmetrically provided on the inner side of the second mounting cavity 121, one end of the movable block 123 and the second limiting groove 14 are slidably connected, and a guide rod 15 is symmetrically fixedly installed on the inner side of the second mounting cavity 121, one end of the guide rod 15 is slidably connected to the inner side of the movable block 123, and one end of the guide rod 15 movably penetrates the middle part of the second spring 125. By using the movable block 123 to slide in the second limiting groove 14 of the second mounting cavity 121, one end of the movable block 123 can be prevented from being separated from the second mounting cavity 121, and by having one end of the guide rod 15 penetrate the middle part of the second spring 125, a certain limiting protection effect can be achieved for the second spring 125.

[0037] See also Figure 5 The outer side of the connecting seat 7 is symmetrically fixedly connected with a fixing plate 16, and the inner side of the fixing plate 16 is symmetrically provided with fixing holes 17. The fixing plate 16 is fixedly installed by screws penetrating the fixing holes 17 and the water tank 6. By using the fixing plate 16 with the fixing holes 17 on the connecting seat 7, the connecting seat 7 can be conveniently installed and fixed on the water tank 6 for the first time.

[0038] See also Figure 2 and Figure 3 A fixing groove 502 is provided on the front of the water purifier body 1, and one end of the side cover 5 is rotatably connected to the inner side of the fixing groove 502. The inner side of the fixing groove 502 is symmetrically inlaid with magnets 503, and the other end of the side cover 5 is magnetically connected to the magnet 503. A heat dissipation hole 501 is provided on the inner side of the side cover 5. The side cover 5 is rotated at the fixing groove 502 on the water purifier body 1 at one end, and the other side is magnetically attracted to the magnet 503 in the fixing groove 502, which is convenient for the switch of the side cover 5. At the same time, it is also convenient to disassemble and assemble the sensor body 8 on the water tank 6 of the water purifier body 1 to a certain extent, and the heat dissipation holes 501 on the side cover 5 meet the heat dissipation needs of the internal circuit components of the water purifier body 1 itself.

[0039] The working principle of the present invention is as follows: during use, when the water is not discharged through the water outlet pipe 2 through the water outlet head 4, the driving motor 305 is started to run, so that the output end drives the screw rod 304 to rotate in the assembly shell 303, and the rotation of the screw rod 304 causes the blocking plate 302 connected with the outer thread to slide toward the extension plate shell 301, so that the blocking plate 302 can block the lower end of the water outlet pipe 2 to prevent dust from entering the water outlet pipe 2. When drinking water, the driving motor 305 drives the screw rod 304 to run in the reverse direction, so that one end of the blocking plate 302 retracts toward the assembly shell 303, and at this time, the exposed lower end of the water outlet pipe 2 can discharge water;

[0040] During the initial installation, first install the connecting seat 7 on the water tank 6. When the sensor body 8 needs to be installed, it is only necessary to push the sensor body 8 directly into the connecting groove 701 of the connecting seat 7. During the pushing process, the sensor body 8 squeezes the inclined surface of the card block 906 in the connecting groove 701. At the same time, the limit plate 905 connected to the card block 906 slides in the first installation cavity 904 and squeezes the first spring 901 on the outside of the pull rod 903 until the position of the card block 906 corresponds to the position of the card slot 11 of the sensor body 8. At this time, the first spring 901 can quickly complete the fixation by resetting and pushing the card block 906 connected to the limit plate 905 into the card slot 11. When the sensor body 8 is subsequently disassembled, replaced or maintained, it is only necessary to pull the pull block 902 at the same time, and the pull rod 903 connected to the pull block 902 By spreading them apart from each other, the pull rod 903 can be separated from the slot 11 by the block 906 connected to the limit plate 905, and then the sensor body 8 can be quickly removed from the connecting slot 701. During the installation of the sensor body 8, pressure will be applied to the contact plate 124 in the connecting slot 701 until the block 906 fixes the sensor body 8 in the connecting slot 701, so that the contact plate 124 is squeezed and pushed down into the countersunk groove 122. At the same time, the movable block 123 at the lower end of the contact plate 124 slides in the second installation cavity 121 and compresses the second spring 125. When disassembling, once the block 906 is detached from the slot 11 on the sensor body 8, the second spring 125 will perform elastic reset and the contact plate 124 connected by the movable block 123 will push the sensor body 8 out of the connecting slot 701, making it convenient for the staff to take it out.

Claims

1. A water purifier based on a capacitive non-contact liquid level sensor, characterized in that: It includes a water purifier body, a water outlet is provided on the right side of the water purifier body, a water outlet pipe is symmetrically provided at the lower end of the water outlet, a protective mechanism is provided at the lower end of the water outlet, a side cover is provided on the front of the water purifier body, a water tank is fixedly installed on the inner side of the water purifier body, a connecting seat is fixedly installed on the front of the water tank, a connecting groove is provided on the front of the connecting seat, a through hole is provided on the inner side of the connecting groove, a wire groove is provided at the notch of the connecting groove, a sensor body is plugged into the inner side of the connecting groove, a card slot is provided on the outer side of the sensor body, a fixing mechanism is symmetrically provided on the inner side of the connecting seat, the connecting seat is clamped with the card slot through the fixing mechanism, a resistance mechanism is symmetrically provided on the inner side of the connecting groove, and the resistance mechanism and the sensor body are movably connected.

2. A water purifier based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: The protection mechanism includes an assembly shell, which is fixedly installed at the lower end of the water outlet head. A sliding hole is symmetrically opened on the inner side of the assembly shell, and an extension plate shell is fixedly installed on one side of the orifice of the sliding hole. The upper end of the extension plate shell is plugged into the lower end of the water outlet pipe, and a sealing plate is slidably connected to the inner side of the extension plate shell. A driving motor is symmetrically fixedly installed on the inner side of the assembly shell, and a screw is fixedly installed on the output end of the driving motor. One end of the sealing plate slides into the inner side of the assembly shell through the sliding hole, and the side of the sealing plate away from the extension plate shell is threadedly connected to one end of the screw.

3. A water purifier based on a capacitive non-contact liquid level sensor according to claim 2, characterized in that: A connection frame is fixedly installed on the upper end of the assembly shell, and connection holes are symmetrically opened on the inner side of the connection frame. The connection frame is fixedly installed by screws penetrating the connection holes and the lower end of the water outlet head.

4. A water purifier based on a capacitive non-contact liquid level sensor according to claim 2, characterized in that: The inner side of the extended plate shell is symmetrically provided with a slide groove, one end of the notch of the slide groove extends to the inner side of the slide hole, and the side of the blocking plate and the slide groove are slidably connected.

5. A water purifier based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: The fixing mechanism includes a first installation cavity, which is symmetrically opened on the inner side of the connecting seat. The inner side of the first installation cavity is slidably connected to a limiting plate. A clamping block is symmetrically fixedly installed on one side of the limiting plate. The clamping end of the clamping block movably extends into the inner side of the connecting groove. A pull rod is fixedly installed on the side of the limiting plate away from the clamping block. A first spring is sleeved on one end of the pull rod close to the limiting plate. An end of the pull rod away from the first spring slides through the inner wall of the first installation cavity and is fixedly installed with a pull block. The clamping end of the clamping block is clamped in the clamping slot of the sensor body.

6. A water purifier based on a capacitive non-contact liquid level sensor according to claim 5, characterized in that: The clamping end of the clamping block is inclined toward one side of the connecting groove, the inner side of the first installation cavity is symmetrically provided with a first limiting groove, the end of the limiting plate is slidably connected to the inner side of the first limiting groove, and the inner side of the pulling block is provided with a pulling hole.

7. A water purifier based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: The interference mechanism includes a second mounting cavity and a movable block, the second mounting cavity is symmetrically opened on the inner side of the connecting seat, one end of the movable block is slidably connected to the inner side of the second mounting cavity, a countersunk groove is opened on the inner side of the connecting groove, the countersunk groove and one side of the cavity wall of the second mounting cavity are connected to each other, a contact plate is fixedly installed on one end of the movable block away from the second mounting cavity, a second spring is symmetrically fixedly installed between the movable block and the second mounting cavity, and the side of the contact plate away from the movable block is movably connected to the sensor body.

8. A water purifier based on a capacitive non-contact liquid level sensor according to claim 7, characterized in that: A second limiting groove is symmetrically opened on the inner side of the second installation cavity, one end of the movable block is slidably connected to the second limiting groove, a guide rod is symmetrically fixedly installed on the inner side of the second installation cavity, one end of the guide rod is slidably connected to the inner side of the movable block, and one end of the guide rod movably passes through the middle part of the second spring.

9. A water purifier based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: A fixing plate is symmetrically fixedly connected to the outer side of the connecting seat, and fixing holes are symmetrically opened on the inner side of the fixing plate. The fixing plate is fixedly installed by screws penetrating the fixing holes and the water tank.

10. A water purifier based on a capacitive non-contact liquid level sensor according to claim 1, characterized in that: A fixing groove is provided on the front of the water purifier body, one end of the side cover is rotatably connected to the inner side of the fixing groove, magnets are symmetrically inlaid on the inner side of the fixing groove, the other end of the side cover is magnetically connected to the magnet, and a heat dissipation hole is provided on the inner side of the side cover.

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