Water purifier based on capacitive non-contact liquid level sensor

Abstract

The utility model relates to the technical field of water purifiers, in particular to a water purifier based on a capacitive non-contact liquid level sensor, which is characterized in that in the mounting process of a sensor main body, a pressure is applied to a contact plate in a connecting groove until the sensor main body is fixed in the connecting groove by a clamping block, so that the contact plate is extruded and pushed downwards into a countersunk head groove; meanwhile, a movable block at the lower end of a contact plate slides in a second mounting cavity and compresses a second spring, and during disassembly, once a clamping block is separated from a clamping groove in the sensor main body, the second spring is elastically reset, and the sensor main body is pushed out of a connecting groove through the contact plate connected with the movable block; a driving motor drives a screw rod to reversely run, so that one end of a plugging plate retracts towards an assembling shell, and at the moment, water can be discharged from the exposed part of the lower end of a 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 effluent of the water purifier can be prevented to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purifier technical field, especially a water purifier based on capacitive non -contact liquid level sensor. BACKGROUND

[0002] Water purifier is indispensable household electrical appliances in modern family and office place, it passes through multistage filtration system, effectively removes the impurity, residual chlorine, heavy metal, bacteria and virus etc.

[0003] The traditional intelligent water purifier on the market usually needs to install a liquid level sensor on the water tank in the water purifier to facilitate monitoring the water level in the water tank. The traditional capacitive non-contact liquid level sensor is mainly installed and fixed on the water tank through screws and two mounting ears on the sensor. Therefore, when the sensor fails or is damaged, it cannot be quickly removed, maintained or replaced from the water purifier. In addition, as is known to all, the outlet pipe of the traditional water purifier usually has no protective structure. Therefore, the outlet pipe is often contaminated with dust for a long time, which affects the water quality of the water purifier. SUMMARY

[0004] The utility model discloses a water purifier based on capacitive non-contact liquid level sensor to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides a water purifier based on capacitive non-contact liquid level sensor, including water purifier main part, the right side of water purifier main part is equipped with the water outlet head, the lower extreme of water outlet head is equipped with the outlet pipe, the lower extreme of water outlet head is equipped with the protection mechanism, the front of water purifier main part is equipped with the side cover, the inside of water purifier main part is fixedly installed with the water tank, the front of water tank is fixedly installed with the connecting seat, the front of connecting seat is equipped with the connecting groove, the inside of connecting groove is equipped with the through -hole, the slot of connecting groove is equipped with the wire slot, the inside of connecting groove is inserted with sensor main part, the outside of sensor main part is equipped with the clamping slot, the inside of connecting seat is equipped with the fixed mechanism, and the connecting seat is connected through the fixed mechanism and clamping slot.

[0006] The protection mechanism comprises an assembly shell fixedly installed at the lower end of the water outlet head, the inner side of the assembly shell is symmetrically provided with a sliding hole, the orifice of the sliding hole is fixedly provided with an extension plate shell, the upper end of the extension plate shell is inserted into the lower end of the water outlet pipe, the inner side of the extension plate shell is slidably connected with a blocking plate, the inner side of the assembly shell is symmetrically fixedly provided with a driving motor, the output end of the driving motor is fixedly provided with a screw rod, one end of the blocking plate is slidably inserted 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 with one end of the screw rod.

[0007] The fixing mechanism comprises a first installation cavity symmetrically provided in the inner side of the connecting seat, the inner side of the first installation cavity is slidably connected with a limiting plate, one side of the limiting plate is symmetrically fixedly provided with a clamping block, the clamping end of the clamping block is movably inserted into the inner side of the connecting groove, the side of the limiting plate away from the clamping block is fixedly provided with a pull rod, the end of the pull rod close to the limiting plate is sleeved with a first spring, the end of the pull rod away from the first spring is slidably penetrated through the inner wall of the first installation cavity and fixedly provided with a pulling block, and the clamping end of the clamping block is clamped with the clamping groove of the sensor body.

[0008] The abutting mechanism comprises a second installation cavity and a movable block, the second installation cavity is symmetrically provided in the inner side of the connecting seat, one end of the movable block is slidably connected in the inner side of the second installation cavity, the inner side of the connecting groove is provided with a countersunk groove, the countersunk groove and the cavity wall of the second installation cavity are in communication, the end of the movable block away from the second installation cavity is fixedly provided with a contact plate, the movable block and the second installation cavity are symmetrically fixedly provided with a second spring, and the side of the contact plate away from the movable block is movably connected with the sensor body.

[0009] Further, the upper end of the assembly shell is fixedly provided with a connecting frame, the inner side of the connecting frame is symmetrically provided with a connecting hole, and the connecting frame is fixedly installed at the lower end of the water outlet head through the connecting hole and a screw.

[0010] Further, the inner side of the extension plate shell is symmetrically provided with a sliding groove, the orifice of the sliding groove extends to the inner side of the sliding hole, and the side of the blocking plate is slidably connected with the sliding groove.

[0011] Further, the clamping end of the clamping block is inclined towards the orifice 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 in the inner side of the first limiting groove, and the inner side of the pulling block is provided with a pulling hole.

[0012] Further, the inner side of the second installation cavity is symmetrically provided with a second limiting groove, one end of the movable block is slidably connected with the second limiting groove, the inner side of the second installation cavity is symmetrically fixedly provided with a guide rod, one end of the guide rod is slidably connected in the inner side of the movable block, and one end of the guide rod movably penetrates through the middle part of the second spring.

[0013] Further, the outer side of the connecting seat is fixedly connected with a fixed plate, the inner side of the fixed plate is symmetrically provided with a fixed hole, and the fixed plate is fixedly installed through the fixed hole and the water tank by a screw.

[0014] Further, the front side of the water purifier main body is provided with a fixed groove, one end of the side cover is rotationally connected to the inner side of the fixed groove, the inner side of the fixed groove is symmetrically embedded with a magnet, the other end of the side cover is magnetically connected to the magnet, and the inner side of the side cover is provided with a heat dissipation hole.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] Firstly, when the water outlet pipe of the water outlet head is not used for water discharge, the driving motor is started to drive the output end to rotate the screw rod in the assembly shell, the rotation of the screw rod drives the outer threaded blocking plate to slide towards the extension plate shell, so that the blocking plate can block the lower end of the water outlet pipe to prevent dust from entering the water outlet pipe, and when drinking water, the driving motor drives the screw rod to reverse, so that one end of the blocking plate is retracted towards the assembly shell, and the lower end of the water outlet pipe is exposed for water discharge, thereby effectively protecting the water outlet pipe of the water purifier main body, and preventing the water quality of the water purifier from being polluted to a certain extent.

[0017] Secondly, the sensor main body is directly pushed into the connecting groove of the connecting seat, the sensor main body extrudes the clamping block clamping end inclined surface part in the connecting groove during the pushing process, the clamping block connected limiting plate slides in the first installation cavity and extrudes the first spring outside the pull rod, until the position of the clamping block corresponds to the position of the clamping groove of the sensor main body, at this time, the first spring drives the clamping block connected to the limiting plate to clamp into the clamping groove, so that the fixing is quickly completed, and when the sensor main body is disassembled, replaced or maintained, the pull block is pulled at the same time, the pull rod connected to the pull block is separated from each other, the pull rod connected to the limiting plate is separated from the clamping groove, and then the sensor main body can be quickly taken out from the connecting groove, so that the sensor main body is conveniently disassembled and assembled on the water tank of the water purifier main body.

[0018] Thirdly, in the sensor main body installation process, a pressure is given to the contact plate in the connecting groove, until the clamping block fixes the sensor main body in the connecting groove, the contact plate is extruded and pushed down to the counterbore groove, and the movable block at the lower end of the contact plate slides in the second installation cavity and compresses the second spring, and when disassembled, once the clamping block is separated from the clamping groove on the sensor main body, the second spring is elastically reset to push the sensor main body out of the connecting groove through the contact plate connected to the movable block, so that the disassembly of the sensor main body is further facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic view of the utility model;

[0020] Figure 2 It is the side view in the utility model;

[0021] Figure 3 It is the internal structure schematic view in the utility model;

[0022] Figure 4 It is the connecting seat and sensor main body installation schematic view in the utility model;

[0023] Figure 5 It is the structure schematic view of the utility model in the resistance mechanism;

[0024] Figure 6 It is the Figure 3 The enlarged view of A in the middle;

[0025] Figure 7 It is the protection mechanism bottom view in the utility model;

[0026] Figure 8 It is the internal structure schematic view of the assembly shell in the utility model.

[0027] In the drawing: 1, water purifier main body; 2, water outlet pipe; 3, protection mechanism; 301, extension plate shell; 302, plugging plate; 303, assembly shell; 304, screw; 305, drive motor; 306, sliding hole; 4, water outlet head; 5, side cover; 501, heat dissipation hole; 502, fixed groove; 503, magnet; 6, water tank; 7, connecting seat; 701, connecting groove; 702, through hole; 703, wire slot; 8, sensor main body; 9, fixed mechanism; 901, first spring; 902, pull block; 903, pull rod; 904, first installation cavity; 905, limiting plate; 906, clamping block; 10, pull hole; 11, clamping groove; 12, resistance mechanism; 121, second installation cavity; 122, countersunk groove; 123, movable block; 124, contact plate; 125, second spring; 13, first limiting groove; 14, second limiting groove; 15, guide rod; 16, fixed plate; 17, fixed hole; 18, sliding groove; 19, connecting frame; 20, connecting hole. DETAILED DESCRIPTION

[0028] EMBODIMENT

[0029] Please refer to Figures 1-8The utility model embodiment, a kind of water purifier based on capacitive non-contact liquid level sensor, including water purifier main body 1, the right side of water purifier main body 1 is equipped with water outlet head 4, the lower end of water outlet head 4 is equipped with water outlet pipe 2 symmetrically, the lower end of water outlet head 4 is equipped with protection mechanism 3, the front of water purifier main body 1 is equipped with side cover 5, the inside of water purifier main body 1 is fixedly installed with water tank 6, the front of water tank 6 is fixedly installed with connecting seat 7, the front of connecting seat 7 is equipped with connecting groove 701, the inside of connecting groove 701 is equipped with through hole 702, the slot of connecting groove 701 is equipped with wire groove 703, the inside of connecting groove 701 is inserted with sensor main body 8, the outside of sensor main body 8 is equipped with clamping groove 11, the inside of connecting seat 7 is equipped with fixed mechanism 9 symmetrically, connecting seat 7 is connected by fixed mechanism 9 and clamping groove 11, the inside of connecting groove 701 is equipped with abutting mechanism 12 symmetrically, abutting mechanism 12 and sensor main body 8 are movably connected;Water purifier main body 1 is the mature prior art product on market, its basic function and use principle have been familiar to the public, thus do not make too much repetition here;The model of sensor main body 8 is specifically XKC-Y28, capacitive non-contact liquid level sensor, in water purifier main body 1 including raw water tank 6 and water purifier tank 6, and sensor main body 8 is installed on corresponding raw water tank 6 and water purifier tank 6, can detect the high water level and low water level of raw water tank 6 and water purifier tank 6;

[0030] The protection mechanism 3 comprises an assembly shell 303 fixedly installed at the lower end of the water outlet head 4, the inner side of the assembly shell 303 is symmetrically provided with a sliding hole 306, the hole opening of the sliding hole 306 is fixedly provided with an extension plate shell 301, the upper end of the extension plate shell 301 is inserted into the lower end of the water outlet pipe 2, the inner side of the extension plate shell 301 is slidably connected with a blocking plate 302, the inner side of the assembly shell 303 is symmetrically fixedly provided with a driving motor 305, the output end of the driving motor 305 is fixedly provided with a screw rod 304, one end of the blocking plate 302 is slidably inserted into the inner side of the assembly shell 303 through the sliding hole 306, the side of the blocking plate 302 away from the extension plate shell 301 is threadedly connected with one end of the screw rod 304, in use, when the water outlet pipe 2 of the water outlet head 4 is not used for water discharge, the driving motor 305 is started to drive the screw rod 304 to rotate in the assembly shell 303, the rotation of the screw rod 304 drives the blocking plate 302 on the outer side to slide towards 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 reversely rotate, so that one end of the blocking plate 302 is retracted towards the assembly shell 303, at this time, the lower end of the water outlet pipe 2 is exposed to water, so that the water outlet pipe 2 of the water purifier main body 1 can be effectively protected, and the water quality pollution problem of the water purifier can also be prevented to a certain extent; a control module is further arranged at the water outlet head 4 of the water purifier main body 1, when the machine is controlled to discharge water through the control module, the control module controls the driving motor 305 to operate in advance before water discharge, so that the blocking plate 302 is moved away, otherwise, after the key is released, the control module controls the driving motor 305 to operate to complete the blocking of the water outlet pipe 2; the assembly shell 303 is made of aluminum material, which can also satisfy the heat dissipation of the internal electrical elements to a certain extent;

[0031] The fixing mechanism 9 comprises a first mounting cavity 904 which is symmetrically arranged in the inner side of the connecting seat 7, the inner side of the first mounting cavity 904 is slidably connected with a limiting plate 905, one side of the limiting plate 905 is symmetrically fixedly installed with a clamping block 906, the clamping end of the clamping block 906 is movably extended into the inner side of the connecting groove 701, the side of the limiting plate 905 away from the clamping block 906 is fixedly installed with a pull rod 903, one end of the pull rod 903 close to the limiting plate 905 is sleeved with a first spring 901, one end of the pull rod 903 away from the first spring 901 is slidably penetrated through the inner wall of the first mounting 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 main body 8, when initially installing, firstly, the connecting seat 7 is installed on the water tank 6, when the sensor main body 8 needs to be installed, the sensor main body 8 is directly pushed into the connecting groove 701 of the connecting seat 7, in the process of pushing, the sensor main body 8 extrudes the inclined surface part of the clamping end of the clamping block 906 in the connecting groove 701, at the same time, the limiting plate 905 connected with the clamping block 906 slides in the first mounting cavity 904 and extrudes the first spring 901 outside the pull rod 903, until the position of the clamping block 906 corresponds to the position of the clamping groove 11 of the sensor main body 8, at this time, the first spring 901 pushes the clamping block 906 connected with the limiting plate 905 into the clamping groove 11 through reset, so that the fixing is quickly completed, when the sensor main body 8 needs to be disassembled, replaced or maintained, the pull block 902 is pulled at the same time, the pull rod 903 connected with the pull block 902 is distanced from each other and is opened, so that the pull rod 903 is separated from the clamping groove 11 through the clamping block 906 connected with the limiting plate 905, then the sensor main body 8 can be quickly taken out from the connecting groove 701, so that the disassembly and assembly of the sensor main body 8 on the water tank 6 of the water purifier main body 1 are facilitated;

[0032] The interference mechanism 12 comprises a second mounting cavity 121 symmetrically formed in the inner side of the connecting seat 7 and a movable block 123, one end of which is slidably connected to the inner side of the second mounting cavity 121. The inner side of the connecting groove 701 is provided with a countersunk groove 122, which is in communication with one side of the cavity wall of the second mounting cavity 121. The end of the movable block 123 away from the second mounting cavity 121 is fixedly provided with a contact plate 124. The second spring 125 is symmetrically and fixedly arranged 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 clamping block 906 fixes the sensor body 8 in the connecting groove 701, so that the contact plate 124 is pushed down into the countersunk groove 122, and 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 clamping block 906 is separated from the clamping groove 11 on the sensor body 8, the second spring 125 will be elastically reset to push the sensor body 8 out of the connecting groove 701 through the contact plate 124 connected by the movable block 123, so as to further facilitate 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 pulling block 902 in a spreading manner, so as to quickly take down the sensor body 8 in cooperation with the interference mechanism 12.

[0033] Please refer to Figure 8 The upper end of the assembly shell 303 is fixedly provided with a connecting frame 19, and the inner side of the connecting frame 19 is symmetrically provided with a connecting hole 20. The connecting frame 19 is fixedly installed at the lower end of the water outlet head 4 through the connecting hole 20 and a screw. The connecting frame 19 with the connecting hole 20 on the assembly shell 303 can facilitate the installation of the assembly shell 303 below the water outlet head 4.

[0034] Please refer to Figure 7 The inner side of the extension plate shell 301 is symmetrically provided with a sliding groove 18, and the slot end of the sliding groove 18 extends to the inner side of the sliding hole 306. The side of the blocking plate 302 is slidably connected to the sliding groove 18. The sliding groove 18 on the extension plate shell 301 can make one end of the blocking plate 302 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] Please refer to Figure 4The card block 906 is inclined towards the side of the connecting groove 701, the first installation cavity 904 is symmetrically provided with a first limiting groove 13 on the inner side, the end of the limiting plate 905 is slidingly connected to the inner side of the first limiting groove 13, the inner side of the pull block 902 is provided with a pull hole 10, the limiting plate 905 is limited in the first limiting groove 13 of the first installation cavity 904, and the movement of the limiting plate 905 is limited. During the pulling of the limiting plate 905, when the limiting plate 905 moves from one end to the other end of the first limiting groove 13, the card block 906 is separated from the card groove 11, and the disassembly operation of the sensor body 8 is facilitated.

[0036] Please refer to Figure 5 The inner side of the second installation cavity 121 is symmetrically provided with a second limiting groove 14, one end of the movable block 123 is slidingly connected to the second limiting groove 14, the inner side of the second installation cavity 121 is symmetrically fixedly provided with a guide rod 15, one end of the guide rod 15 is slidingly 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. The movable block 123 is limitedly slid in the second limiting groove 14 of the second installation cavity 121, so that one end of the movable block 123 cannot be separated from the second installation cavity 121. One end of the guide rod 15 penetrates the middle part of the second spring 125, so that the second spring 125 is limited and protected to a certain extent.

[0037] Please refer to Figure 5 The outer side of the connecting seat 7 is symmetrically fixedly connected with a fixed plate 16, the inner side of the fixed plate 16 is symmetrically provided with a fixed hole 17, and the fixed plate 16 is fixedly installed by penetrating the fixed hole 17 and the water tank 6 through screws. The fixed plate 16 with the fixed hole 17 on the connecting seat 7 can facilitate the initial installation and fixation of the connecting seat 7 on the water tank 6.

[0038] Please refer to Figure 2 and Figure 3 The front surface of the water purifier body 1 is provided with a fixed groove 502, one end of the side cover 5 is rotationally connected to the inner side of the fixed groove 502, the inner side of the fixed groove 502 is symmetrically embedded with a magnet 503, the other end of the side cover 5 is magnetically connected to the magnet 503, and the inner side of the side cover 5 is provided with a heat dissipation hole 501. One end of the side cover 5 is rotated at the fixed groove 502 of the water purifier body 1, the other side is magnetically attracted to the magnet 503 of the fixed groove 502, the opening and closing of the side cover 5 is facilitated, the sensor body 8 on the water tank 6 of the water purifier body 1 is also facilitated to be disassembled to a certain extent, and the heat dissipation hole 501 on the side cover 5 meets the heat dissipation needs of the internal circuit elements of the water purifier body 1.

[0039] The working principle of the utility model discloses is: in the using process, when not discharging water through the water outlet pipe 2 of the water outlet head 4, the driving motor 305 is started to drive the screw rod 304 to rotate in the assembling shell 303, and the rotation of the screw rod 304 drives the blocking plate 302 connected with the outer side thread to slide towards 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, and when drinking water, the driving motor 305 drives the screw rod 304 to reverse operation, so that one end of the blocking plate 302 is retracted towards the assembling shell 303, and the lower end of the water outlet pipe 2 is exposed to water;

[0040] When initially installed, first, the connecting seat 7 is installed on the water tank 6, when the sensor body 8 needs to be installed, the sensor body 8 is directly pushed into the connecting groove 701 of the connecting seat 7, in the process of pushing, the sensor body 8 extrudes the clamping block 906 in the connecting groove 701, and the clamping block 906 connected with the limiting plate 905 slides in the first installation cavity 904 and extrudes the first spring 901 outside the pull rod 903, until the position of the clamping block 906 corresponds to the position of the clamping groove 11 of the sensor body 8, at this time, the first spring 901 pushes the clamping block 906 connected with the limiting plate 905 into the clamping groove 11 to quickly complete the fixing, when the sensor body 8 needs to be disassembled, replaced or maintained, the pull block 902 is pulled, the pull rod 903 connected with the pull block 902 is separated from each other, the pull rod 903 is separated from the clamping groove 11 through the clamping block 906 connected with the limiting plate 905, and then the sensor body 8 can be quickly taken out from the connecting groove 701, because the sensor body 8 is installed in the connecting groove 701, the contact plate 124 is pressed until the clamping block 906 fixes the sensor body 8 in the connecting groove 701, the contact plate 124 is pushed into the sunken groove 122, and 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 disassembled, once the clamping block 906 is separated from the clamping groove 11 of the sensor body 8, the second spring 125 is elastically reset to push the sensor body 8 out of the connecting groove 701 through the contact plate 124 connected with the movable block 123, and the staff can take out the sensor body 8.

Claims

1. A water purifier based on a capacitive non-contact liquid level sensor, characterized by, The utility model provides a water purifier, including the main part of water purifier, the right side of main part of water purifier is equipped with the water outlet head, the lower end of water outlet head is equipped with the water outlet pipe, the lower end of water outlet head is equipped with the protection mechanism, the front of main part of water purifier is equipped with the side cover, the inboard of main part of water purifier is fixedly installed with the water tank, the front of water tank is fixedly installed with the connecting seat, the front of connecting seat is equipped with the connecting groove, the inboard of connecting groove is equipped with the through -hole, the slot of connecting groove is equipped with the wire slot, the inboard of connecting groove is inserted with sensor main part, the inboard of connecting seat is equipped with the fixed mechanism, and the connecting seat is connected through fixed mechanism and the clamping of card slot, the inboard of connecting groove is equipped with the resistance mechanism, and the resistance mechanism and sensor main part 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, the assembly shell is fixedly installed at the lower end of the water outlet head, the inboard of the assembly shell is symmetrically provided with a sliding hole, one side of the aperture of the sliding hole is fixedly installed with an extension plate shell, the upper end of the extension plate shell is inserted with the lower end of the water outlet pipe, the inboard of the extension plate shell is slidably connected with a blocking plate, the inboard of the assembly shell is symmetrically fixedly installed with a drive motor, the output end of the drive motor is fixedly installed with a screw rod, one end of the blocking plate is slidably extended into the inboard of the assembly shell through the sliding hole, and the side, away from the extension plate shell, of the blocking plate is threadedly connected with one end of the screw rod.

3. A water purifier based on a capacitive non-contact liquid level sensor according to claim 2, characterized in that, The upper end of the assembly shell is fixedly installed with a connecting frame, the inboard of the connecting frame is symmetrically provided with a connecting hole, and the connecting frame is fixedly installed at the lower end of the water outlet head through the connecting hole and a screw.

4. The water purifier based on the capacitive non-contact liquid level sensor according to claim 2, characterized in that, The inboard of the extension plate shell is symmetrically provided with a sliding groove, one end of the slot of the sliding groove extends to the inboard of the sliding hole, and the side of the blocking plate is slidably connected with the sliding groove.

5. The water purifier based on the capacitive non-contact liquid level sensor according to claim 1, characterized in that, The fixed mechanism includes a first installation cavity, the first installation cavity is symmetrically provided in the inboard of the connecting seat, the inboard of the first installation cavity is slidably connected with a limiting plate, one side of the limiting plate is symmetrically fixedly installed with a clamping block, the clamping end of the clamping block is movably extended into the inboard of the connecting groove, the side, away from the clamping block, of the limiting plate is fixedly installed with a pull rod, the end, close to the limiting plate, of the pull rod is sleeved with a first spring, the end, away from the first spring, of the pull rod is slidably penetrated through the inwall of the first installation cavity and fixedly installed with a pulling block, and the clamping end of the clamping block is clamped with the clamping groove of the sensor main 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 to the side of the slot of the connecting groove, the inboard of the first installation cavity is symmetrically provided with a first limiting groove, the end of the limiting plate is slidably connected in the inboard of the first limiting groove, and the inboard of the pulling block is provided with a pulling hole.

7. The water purifier based on the capacitive non-contact liquid level sensor according to claim 1, characterized in that, The resistance mechanism includes a second installation cavity and a movable block, the second installation cavity is symmetrically provided in the inboard of the connecting seat, one end of the movable block is slidably connected in the inboard of the second installation cavity, the inboard of the connecting groove is provided with a countersunk groove, the cavity wall side of the countersunk groove and the second installation cavity is mutually connected, the end, away from the second installation cavity, of the movable block is fixedly installed with a contact plate, the second spring is symmetrically fixedly installed between the movable block and the second installation cavity, and the side, away from the movable block, of the contact plate is movably connected with the sensor main body.

8. The water purifier based on the capacitive non-contact liquid level sensor according to claim 7, characterized in that, The inner side of the second installation cavity is symmetrically provided with a second limiting slot, one end of the movable block is in sliding connection with the second limiting slot, the inner side of the second installation cavity is symmetrically fixedly provided with a guide rod, one end of the guide rod is in sliding connection with the inner side of the movable block, and one end of the guide rod movably penetrates the middle part of the second spring.

9. The water purifier based on the capacitive non-contact liquid level sensor according to claim 1, characterized in that, The outer side of the connecting seat is symmetrically fixedly connected with a fixed plate, the inner side of the fixed plate is symmetrically provided with a fixed hole, and the fixed plate is fixedly installed in the water tank through penetration of the fixed hole and the water tank.

10. The water purifier based on the capacitive non-contact liquid level sensor according to claim 1, characterized in that, The front of the water purifier main body is provided with a fixed groove, one end of the side cover is rotationally connected to the inner side of the fixed groove, the inner side of the fixed groove is symmetrically embedded with magnets, the other end of the side cover is in magnetic connection with the magnets, and the inner side of the side cover is provided with a heat dissipation hole.

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