Liquid level detection device and mounting structure

Abstract

The utility model discloses a liquid level detection device and a mounting structure of the liquid level detection device, the liquid level detection device comprises a limit sensor, an upper liquid level sensor and a lower liquid level sensor, the limit sensor, the upper liquid level sensor and the lower liquid level sensor are sequentially arranged in a liquid storage barrel at intervals from top to bottom; the installation structure comprises a liquid storage barrel, a liquid supplementing pipe, a sensor installation frame, a limit sensor, an upper liquid level sensor and a lower liquid level sensor, the limit sensor, the upper liquid level sensor and the lower liquid level sensor are arranged in the liquid storage barrel through the sensor installation frame, and a liquid supplementing connector is arranged on the liquid storage barrel and connected with the liquid supplementing pipe located in the liquid storage barrel. The device has the advantages of timely and effectively detecting the state of liquid in the liquid storage barrel, preventing the liquid from overflowing, effectively removing bubbles on the sensor and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level detection technical field, specifically a kind of liquid level detection device and mounting structure. BACKGROUND

[0002] In prior art, liquid level is detected by sensor, when using, sensor can be set at high and low of liquid level to detect, when liquid level drops to low, low sensor sends signal to indicate liquid shortage, and liquid needs to be supplemented, when liquid level rises to high, high sensor sends signal to indicate that liquid level has reached set height, and stop supplementing.

[0003] The structure has the following disadvantages: when high sensor fails, it cannot prompt that liquid level has reached set height, and there is the problem of liquid overflow caused by continuous liquid supplementing. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the deficiency of prior art, and provides a liquid level detection device and structure simple, installation and removal convenient, effective bubble removal liquid level detection device mounting structure, which meet liquid supplementing requirements and effect, timely and effectively detect liquid state in liquid storage barrel, and prevent liquid overflow.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] A kind of liquid level detection device, characterized in that: including limit sensor, upper liquid level sensor and lower liquid level sensor, the limit sensor, upper liquid level sensor, lower liquid level sensor are sequentially spaced and installed in liquid storage barrel from top to bottom;

[0007] Timely and effectively detect liquid state in liquid storage barrel, limit sensor is arranged above upper liquid level sensor, which can effectively prevent the problem of continuous liquid supplementing and liquid overflow caused by upper liquid level sensor failure.

[0008] The limit sensor, upper liquid level sensor and lower liquid level sensor of the utility model adopt photoelectric sensor.

[0009] The limit sensor of the utility model includes limit sensor one and limit sensor two, which are spaced and arranged above and below;Two limit sensors are arranged to further prevent misjudgment caused by sensor failure and ensure that liquid supplementing requirements can be met.

[0010] The liquid level detection device installation structure is characterized in that: it comprises a liquid storage barrel, a liquid supplement pipe, a sensor mounting rack, and a limit sensor, an upper liquid level sensor and a lower liquid level sensor as described above, the limit sensor, the upper liquid level sensor and the lower liquid level sensor are arranged in the liquid storage barrel through the sensor mounting rack, a liquid supplement joint is arranged on the liquid storage barrel, and the liquid supplement joint is connected with the liquid supplement pipe arranged in the liquid storage barrel.

[0011] The liquid storage barrel is further provided with an external filling joint, and the liquid storage barrel is provided with a liquid pumping pipe.

[0012] The sensor mounting rack one comprises a side plate and an upper fixed plate, the upper end of the side plate is fixedly connected with the upper fixed plate, and the limit sensor and the upper liquid level sensor are arranged on the side plate.

[0013] The sensor mounting rack two is arranged at the lower end of the liquid supplement pipe, and the lower liquid level sensor is arranged on the sensor mounting rack two and below the liquid outlet of the liquid supplement pipe.

[0014] The sensor position is fixed through the sensor mounting rack.

[0015] The sensor mounting rack two comprises a pipe connecting plate and a connecting frame, a liquid supplement pipe through hole is arranged on the pipe connecting plate and penetrates the pipe connecting plate in the up-down direction, the connecting frame is fixedly arranged at the lower end of the pipe connecting plate, the lower end of the liquid supplement pipe is tightly inserted into the liquid supplement pipe through hole, the lower liquid level sensor is arranged on the connecting frame, and the lens of the lower liquid level sensor is arranged upwards and below the liquid supplement pipe through hole.

[0016] The pipe connecting plate is further provided with a liquid pumping pipe through hole which penetrates the pipe connecting plate in the up-down direction, and the liquid pumping pipe is tightly inserted into the liquid pumping pipe through hole.

[0017] The sensor mounting rack one comprises a side plate and an upper fixed plate, the upper end of the side plate is fixedly connected with the upper fixed plate, and the limit sensor and the upper liquid level sensor are arranged on the side plate.

[0018] The side plate is further provided with a pipe limiting plate one, the pipe limiting plate one is provided with a U-shaped clamping groove with an opening facing one of the liquid supplement pipe and the liquid pumping pipe, and one of the liquid supplement pipe and the liquid pumping pipe is clamped in the U-shaped clamping groove.

[0019] The side plate is further fixed with a pipe limiting plate three, a U-shaped clamping groove is formed in the pipe limiting plate three and faces another of the liquid supplementing pipe and the liquid pumping pipe, and the other of the liquid supplementing pipe and the liquid pumping pipe is clamped in the U-shaped clamping groove; the sensor mounting frame one is fixed with the barrel cover and is clamped and matched with the liquid supplementing pipe and the liquid pumping pipe, so that the stability of the whole is ensured, the structure is simple, and installation and dismounting are convenient.

[0020] The upper liquid level sensor is provided with the limit sensor, liquid supplementing caused by failure of the upper liquid level sensor can be effectively prevented, and liquid overflow can be effectively prevented; the sensor mounting frame is used to fix the position of the sensor; when bubbles are attached to the lens of the lower liquid level sensor and affect liquid level detection, the lower liquid level sensor can be flushed by liquid from the liquid supplementing pipe to eliminate the bubbles, and the structure is simple and convenient to install. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the overall structure of the filling machine.

[0022] Figure 2 It is another angle schematic view of the overall structure of the filling machine.

[0023] Figure 3 It is a schematic view of the hidden barrel body of the filling machine.

[0024] Figure 4 It is a schematic view of the hidden barrel body and the barrel cover structure of the filling machine.

[0025] Figure 5 It is Figure 4 Another angle schematic view.

[0026] Figure 6 It is Figure 4 Side view.

[0027] Figure 7 It is a schematic view of the cooperation structure of the sensors and the sensor mounting frame one and the sensor mounting frame two.

[0028] Figure 8 It is a schematic view of the structure of the sensor mounting frame two.

[0029] Figure 9 It is a schematic view of the structure of the sensor mounting frame one.

[0030] Reference signs: liquid storage barrel body-1;

[0031] Barrel cover-2, seat groove one-201, seat groove two-202;

[0032] Upper liquid outlet shell-3, upper liquid outlet nozzle one-301, upper liquid outlet nozzle two-302;

[0033] Casing-4, liquid pumping hole one-401, liquid pumping hole two-402;

[0034] Liquid supplementing connector-501, outer filling connector-502;

[0035] Liquid supplementing pipe-6;

[0036] Liquid pumping pipe-7;

[0037] Limit sensor one-801, limit sensor two-802, upper liquid level sensor-803, lower liquid level sensor-804, lens-8041;

[0038] Sensor mounting rack one-9, upper fixing plate-901, pipe perforation-9011, side plate-902, limit sensor one mounting plate-903, limit sensor two mounting plate-904, upper liquid level sensor mounting plate-905, pipe limiting plate one-906, U-shaped clamping groove one-9061, pipe limiting plate two-907, U-shaped clamping groove two-9071, pipe limiting plate three-908, U-shaped clamping groove three-9081;

[0039] Sensor mounting rack two-10, pipe connecting plate-1001, liquid supplementing pipe perforation-10011, liquid pumping pipe perforation-10012, connecting rack-1002, sensor mounting hole-10021. DETAILED DESCRIPTION

[0040] The utility model will be explained below in combination with the drawings and embodiments.

[0041] A liquid level detection device, comprising limit sensors, an upper liquid level sensor 803 and a lower liquid level sensor 804, the limit sensors, the upper liquid level sensor 803 and the lower liquid level sensor 804 are sequentially and spacedly arranged from top to bottom in a liquid storage barrel.

[0042] The limit sensors are arranged above the upper liquid level sensor 803, which can effectively prevent the problem of continuous liquid supplementing and liquid overflow caused by the failure of the upper liquid level sensor 803.

[0043] The limit sensors, the upper liquid level sensor 803 and the lower liquid level sensor 804 are photoelectric sensors.

[0044] The photoelectric sensor for detecting the liquid level in this embodiment is a prior art, and the working principle is that the sensor internally comprises an infrared light-emitting diode and a photosensitive receiver. The light emitted by the light-emitting diode is introduced into the lens at the top of the sensor. When the liquid submerges the lens, the light is refracted into the liquid, so that the receiver cannot receive or can only receive a small amount of light. If there is no liquid, the light emitted by the light-emitting diode is directly reflected back to the receiver from the lens. The photoelectric sensor realizes alarm and reminder by sensing this working condition change, and the specific structure is not described in detail here.

[0045] The limit sensors include limit sensor one 801 and limit sensor two 802, which are arranged in an upper and lower interval. Two limit sensors are arranged to further prevent misjudgment caused by sensor failure and ensure that the liquid supplement requirement can be met.

[0046] In this embodiment, limit sensor one 801, limit sensor two 802, upper liquid level sensor 803, and lower liquid level sensor 804 are respectively connected to the controller.

[0047] As shown in the accompanying Figures 4-9 A liquid level detection device installation structure includes a liquid storage barrel, a liquid supplement pipe 6, a liquid extraction pipe 7, a sensor mounting bracket, and limit sensors, upper liquid level sensor 803, and lower liquid level sensor 804 as described above. The limit sensors, upper liquid level sensor 803, and lower liquid level sensor 804 are respectively arranged in the liquid storage barrel through the sensor mounting bracket. The liquid storage barrel is provided with a liquid supplement joint 501 and an external filling joint 502. The liquid supplement joint 501 is connected to the liquid supplement pipe 6 in the liquid storage barrel, and the external filling joint 502 is connected to the liquid extraction pipe 7 in the liquid storage barrel.

[0048] In this embodiment, the length of the liquid extraction pipe 7 is greater than the length of the liquid supplement pipe 6. Liquid is supplemented into the liquid storage barrel through the liquid supplement pipe 6, and liquid in the liquid storage barrel is extracted through the liquid extraction pipe 7.

[0049] The sensor mounting bracket includes sensor mounting bracket one 9 and sensor mounting bracket two 10. The limit sensors and upper liquid level sensor 803 are mounted on sensor mounting bracket one 9.

[0050] Sensor mounting bracket two 10 is arranged at the lower end of the liquid supplement pipe 6. Lower liquid level sensor 804 is mounted on sensor mounting bracket two 10 and located below the liquid outlet of the liquid supplement pipe 6.

[0051] The sensor mounting bracket is used to fix the position of the sensor.

[0052] As shown in the accompanying Figure 8As shown, the sensor mounting rack two 10 includes a tube connecting plate 1001 and a connecting rack 1002, the tube connecting plate 1001 is provided with a liquid supplementing tube through hole 10011 penetrating from top to bottom, the connecting rack 1002 is fixed at the lower end of the tube connecting plate 1001, the lower end of the liquid supplementing tube 6 is inserted into the liquid supplementing tube through hole 10011, the lower liquid level sensor 804 is mounted on the connecting rack 1002, the lens 8041 of the lower liquid level sensor 804 is arranged upward and below the liquid supplementing tube through hole 10011; both the position of the lower liquid level sensor 804 and the liquid level detection are fixed, and when the lens 8041 of the lower liquid level sensor is attached with bubbles, the lower liquid level sensor 804 can be flushed by the liquid in the liquid supplementing tube 6 to eliminate the bubbles, which is simple in structure and convenient to install.

[0053] In this embodiment, the hypochlorous acid disinfectant solution is prepared by mixing the stock solution, water and carbon dioxide together, the disinfectant solution contains carbon dioxide, which is easy to form bubbles and adhere to the lower liquid level sensor.

[0054] In this embodiment, the connecting rack 1002 is a U-shaped rack or a triangular rack with an open upper end, the connecting rack includes a bottom plate, a left side plate and a right side plate, the left end of the bottom plate is fixedly connected with the lower end of the left side plate, the right end is fixedly connected with the lower end of the right side plate, the upper ends of the left side plate and the right side plate are fixedly connected with the lower end of the tube connecting plate 1001, the sensor mounting hole is formed in the bottom plate, and the lower liquid level sensor 804 is mounted in the sensor mounting hole.

[0055] In this embodiment, the tube connecting plate 1001 is also provided with a liquid pumping tube through hole 10012 penetrating from top to bottom, and the liquid pumping tube 7 is inserted into the liquid pumping tube through hole 10012; or a U-shaped clamping groove is arranged on the tube connecting plate 1001 and faces the liquid pumping tube 7, and the liquid pumping tube is clamped in the U-shaped clamping groove; which is simple in structure and further ensures the stability of the installation of the lower liquid level sensor 804.

[0056] The sensor mounting rack one 9 includes a side plate 902 and an upper fixed plate 901, the upper end of the side plate 902 is fixedly connected with the upper fixed plate 901, the upper fixed plate 901 and the side plate 902 form a reverse L-shaped injection integrated molding or are welded to form a whole, and the limit sensor one 801, the limit sensor two 802 and the upper liquid level sensor 803 are mounted on the side plate 902; the positions of the limit sensors and the upper liquid level sensor are fixed.

[0057] The limit sensor one installation plate 903, the limit sensor two installation plate 904 and the upper liquid level sensor installation plate 905 are sequentially and fixedly arranged on the front side wall of the side plate 902 from top to bottom in this embodiment.

[0058] The pipe limiting plate one 906 and the pipe limiting plate two 907 are arranged in sequence on the front side wall of the side plate 902, and the U-shaped clamping groove one 9061 is arranged on the pipe limiting plate one 906, the U-shaped clamping groove two 9071 is arranged on the pipe limiting plate two 907, and the suction pipe 7 is clamped in the U-shaped clamping groove one 9061 and the U-shaped clamping groove two 9071.

[0059] The pipe limiting plate three 908 is arranged on the rear side wall of the side plate 902, the U-shaped clamping groove three 9081 is arranged on the pipe limiting plate three 908, and the supplement pipe is clamped in the U-shaped clamping groove three 9081.

[0060] The supplement pipe can be clamped in the U-shaped clamping groove one and the U-shaped clamping groove two, and the suction pipe can be clamped in the U-shaped clamping groove three according to the needs.

[0061] The limit sensor one installation plate 903, the limit sensor two installation plate 904, the upper liquid level sensor installation plate 905, the pipe limiting plate one 906, the pipe limiting plate two 907 and the pipe limiting plate three 908 are integrally formed or welded with the side plate in this embodiment.

[0062] The limit sensor one 801 is fixedly connected with the limit sensor one installation plate 903 by screwing, the limit sensor two 802 is fixedly connected with the limit sensor two installation plate 904 by screwing, the upper liquid level sensor 803 is fixedly connected with the upper liquid level sensor installation plate 905 by screwing, and the lower liquid level sensor 804 is fixedly connected with the connecting frame 1002 by screwing.

[0063] The disinfectant is placed in the liquid storage barrel, and the disinfectant is supplemented and pumped in this embodiment taking the filling machine for filling the disinfectant as an example, and the filling machine can be used for filling other liquids. Figures 1-3As shown, a filling machine comprises a liquid storage barrel, a suction filling mechanism and a liquid outlet nozzle, the liquid storage barrel comprises a liquid storage barrel body 1 and a barrel cover 2, the barrel cover 2 covers the liquid storage barrel body 1, the barrel cover 2 is provided with a seat groove for placing a filling barrel, the seat groove comprises a seat groove one 201 and a seat groove two 202, the seat groove one 201 and the seat groove two 202 can both place the filling barrel, the barrel cover 2 is fixed with an upper liquid outlet shell 3 at the rear end, the upper liquid outlet shell 3 is installed with an upper liquid outlet nozzle one 301 and an upper liquid outlet nozzle two 302, the upper liquid outlet nozzle one 301 is located directly above the seat groove one 201, the upper liquid outlet nozzle two 302 is located directly above the seat groove two 202, the number of the filling barrels placed on the barrel cover 2 and the number of the liquid outlet nozzles matched are installed according to actual use needs, the barrel cover 2 can not only play a sealing role on the liquid storage barrel body 1, but also can be used for placing the filling barrel, which is convenient for filling.

[0064] In this embodiment, the liquid storage barrel body 1 is provided with a recess structure's supporting shell 4 below the barrel cover 2, the upper end of the supporting shell 4 is fixedly connected with the barrel cover 2, in this embodiment, the liquid supplement connector 501 and the outer filling connector 502 are located on the upper end of the liquid storage barrel body 1 and pass through the side wall of the supporting shell 4, the supporting shell 4 is provided with a liquid supplement pipe through hole and a liquid suction pipe through hole, one end of the liquid supplement pipe 6 is communicated with the liquid supplement connector 501, the other end of the liquid supplement pipe 6 extends into the liquid storage barrel body 1 through the liquid supplement pipe through hole, one end of the liquid suction pipe 7 is communicated with the outer filling connector 502, the other end of the liquid suction pipe 7 extends into the liquid storage barrel body 1 through the liquid suction pipe through hole, a sensor mounting bracket one 9 is arranged at the lower end of the supporting shell 4, an upper fixed plate 901 is transversely arranged and fixedly connected with the bottom of the supporting shell 4, in this embodiment, the upper fixed plate 901 is bolted with the supporting shell 4, which is convenient for installation and dismounting, the upper fixed plate 901 is provided with a pipe through hole 9011, the liquid supplement pipe 6 extends into the liquid storage barrel body 1 through the liquid supplement pipe through hole of the supporting shell 4, the pipe through hole 9011 of the upper fixed plate 901 and the U-shaped clamping groove three 9081 of the pipe limiting plate three 908 in sequence, and is clamped by the U-shaped clamping groove three 9081; the liquid suction pipe 7 is clamped by the U-shaped clamping groove one 9061 of the pipe limiting plate one 906 and the U-shaped clamping groove two 9071 of the pipe limiting plate two 907.

[0065] In this embodiment, the suction filling mechanism (not shown in the figure) is arranged on the supporting shell, the suction filling mechanism comprises a water pump one, a water pump two, a liquid suction pipe one and a liquid suction pipe two, the water pump one is fixed on the left side of the supporting shell 4, the water pump two is fixed on the right side of the supporting shell 4, the water pump one and the water pump two are respectively connected with a controller, the left side of the supporting shell 4 is provided with a liquid suction hole one 401, the right side of the supporting shell 4 is provided with a liquid suction hole two 402, the left side of the barrel cover 2 is provided with an upper liquid outlet hole one, the right side of the barrel cover 2 is provided with an upper liquid outlet hole two, one end of the liquid suction pipe one is inserted into the disinfectant in the liquid storage barrel body 1, the other end of the liquid suction pipe one extends out through the liquid suction hole one 401 on the left side of the supporting shell 4 and is communicated with the liquid inlet of the water pump one, one end of the upper liquid outlet pipe one is communicated with the liquid outlet of the water pump one, the other end of the upper liquid outlet pipe one extends out through the upper liquid outlet hole one on the barrel cover 2 and extends into the left side of the upper liquid outlet shell 3 and is communicated with the upper liquid outlet nozzle one 301;

[0066] The upper liquid outlet pipe two is communicated with the upper liquid outlet nozzle two 302 in the right side of the upper liquid outlet shell 3 through the upper liquid outlet hole two on the barrel cover 2.

[0067] The upper liquid outlet pipe one, the upper liquid outlet pipe two, the liquid suction pipe one and the liquid suction pipe two are not shown in the drawings in this embodiment.

[0068] The liquid storage barrel body 1 is communicated with a disinfectant generator (not shown in the drawings) through the liquid supplement connector 501 in this embodiment; the disinfectant generator prepares disinfectant and flows into the liquid storage barrel body 1 through the liquid supplement connector 501 and the liquid supplement pipe 6 for storage, which is convenient for use.

[0069] The disinfectant generator prepares hypochlorous acid disinfectant by mixing raw materials, which is prior art and will not be described in detail here.

[0070] The water pump (not shown in the drawings) is arranged outside the outer filling connector 502 in this embodiment, which is used to suck the disinfectant in the liquid storage barrel body 1 through the liquid suction pipe 7.

[0071] The personal user generally uses the upper liquid outlet nozzle one 301 and the upper liquid outlet nozzle two 302 to fill, and the business user generally uses the outer filling connector 502 to fill due to the large amount of disinfectant used at a time.

[0072] The controller can be a controller developed based on MCU or a PLC controller in this embodiment, and the controller is fixed on the support shell.

[0073] When the utility model is used:

[0074] 1. The disinfectant generator is started, hypochlorous acid disinfectant is prepared, and the disinfectant is stored in the liquid storage barrel body 1 through the liquid supplement pipe 6; the liquid level detection device detects the liquid level and feeds back the signal to the controller; when the lenses of the lower liquid level sensor 804 and the upper liquid level sensor 803 are immersed in the liquid, it indicates that the liquid level has reached the set requirement; the controller controls the disinfectant generator to stop working according to the signal change feedback by the lower liquid level sensor and the upper liquid level sensor;

[0075] 2. The personal user fills disinfectant; when the user places the filling barrel on the seat groove one 201, the controller controls the water pump one to start; the hypochlorous acid disinfectant is filled into the filling barrel from the upper liquid outlet nozzle one 301 through the liquid suction pipe one and the upper liquid outlet pipe one; when the user places the filling barrel on the seat groove two 202, the operation is the same as above.

[0076] 3、When the merchant user needs to fill the disinfectant in large quantity, the filling is carried out through the outer filling connector 502, the controller controls the water pump connected with the outer filling connector 502 to work, and the disinfectant is drawn out through the liquid pumping pipe 7 and enters the filling barrel;

[0077] 4、In the above filling process, if the liquid level is lowered below the position of the lower liquid level sensor 804, it indicates that the liquid in the liquid storage barrel 1 is insufficient, the controller controls the disinfectant generator to work according to the change signal fed back by the lower liquid level sensor 804, and the liquid is supplemented to the liquid storage barrel 1 through the liquid supplementing pipe 6; in the process of supplementing the liquid, if the lens of the limit sensor two 802 is immersed in the liquid, the limit sensor two 802 feeds back the change signal to the controller, the controller controls the disinfectant generator to stop working and stops supplementing the liquid to the liquid storage barrel, at this time, it also indicates that the upper liquid level sensor 803 is out of order, and the limit sensor two 802 can effectively prevent the problem that the liquid is continuously supplemented and overflowed from the liquid storage barrel 1 due to the failure of the upper liquid level sensor 803; in the process of supplementing the liquid, if the lens of the limit sensor one 801 is immersed in the liquid, the limit sensor one 801 feeds back the signal to the controller, the controller controls the disinfectant generator to stop working and stops supplementing the liquid to the liquid storage barrel 1, at this time, it also indicates that the upper liquid level sensor 803 and the limit sensor two 802 are out of order, and the limit sensor one 801 can further prevent the problem that the liquid is continuously supplemented and overflowed from the liquid storage barrel 1 due to the failure of the upper liquid level sensor 803 and the limit sensor two 802; when there is air bubble on the lens 8041 of the lower liquid level sensor 804, the lower liquid level sensor 804 will feed back the no-water signal, if the upper liquid level sensor 803, the limit sensor two 802 and the limit sensor one 801 also feed back the no-water signal at this time, the controller controls the liquid supplementing, the disinfectant is sprayed from the liquid outlet of the liquid supplementing pipe 6 to wash the lens 8041 of the lower liquid level sensor 804, and if the lower liquid level sensor 804 and the upper liquid level sensor 803 feed back the water signal after washing, the controller controls the liquid supplementing to stop.

Claims

1. A liquid level detection device mounting structure, characterized in that: Including liquid storage tank, liquid supplement pipe, sensor mounting bracket and limit sensor, upper liquid level sensor and lower liquid level sensor, the limit sensor, upper liquid level sensor, lower liquid level sensor are arranged in the liquid storage tank through the sensor mounting bracket, the liquid storage tank is provided with liquid supplement joint, the liquid supplement joint is connected with the liquid supplement pipe in the liquid storage tank; The sensor mounting bracket includes sensor mounting bracket two, which is arranged at the lower end of the liquid supplement pipe, and the lower liquid level sensor is installed on the sensor mounting bracket two and below the liquid outlet of the liquid supplement pipe.

2. The liquid level detecting device mounting structure according to claim 1, characterized by: The liquid storage tank is also provided with an outer filling joint, and the liquid storage tank is provided with a liquid pumping pipe, and the outer filling joint is connected with the liquid pumping pipe.

3. The liquid level detecting device mounting structure according to claim 2, characterized in that: The sensor mounting bracket also includes sensor mounting bracket one, and the limit sensor and the upper liquid level sensor are installed on the sensor mounting bracket one.

4. The liquid level detecting device mounting structure according to claim 2, characterized in that: The sensor mounting bracket two includes a pipe connecting plate and a connecting frame, the pipe connecting plate is provided with a liquid supplement pipe through hole which is arranged vertically, the connecting frame is fixed at the lower end of the pipe connecting plate, the lower end of the liquid supplement pipe is inserted into the liquid supplement pipe through hole, the lower liquid level sensor is installed on the connecting frame, and the lens of the lower liquid level sensor is arranged below the liquid supplement pipe through hole.

5. The liquid level detecting device mounting structure according to claim 4, characterized in that: The pipe connecting plate is also provided with a liquid pumping pipe through hole which is arranged vertically, and the liquid pumping pipe is inserted into the liquid pumping pipe through hole.

6. The liquid level detecting device mounting structure according to claim 3, characterized in that: The sensor mounting bracket one includes a side plate and an upper fixed plate, the upper end of the side plate is fixedly connected with the upper fixed plate, and the limit sensor and the upper liquid level sensor are installed on the side plate.

7. The liquid level detecting device mounting structure according to claim 6, characterized in that: The side plate is also fixed with a pipe limiting plate one, the pipe limiting plate one is provided with a U-shaped clamping groove which is open to one of the liquid supplement pipe and the liquid pumping pipe, and one of the liquid supplement pipe and the liquid pumping pipe is clamped in the U-shaped clamping groove. The side plate is also fixed with a pipe limiting plate three, the pipe limiting plate three is provided with a U-shaped clamping groove which is open to the other of the liquid supplement pipe and the liquid pumping pipe, and the other of the liquid supplement pipe and the liquid pumping pipe is clamped in the U-shaped clamping groove.

Images