Short circuit prevention water level sensing structure

Abstract

The utility model relates to the technical field of scrubber, in particular to an anti-short-circuit water level sensing structure which comprises a sewage tank, a water conveying pipe connected to the surface of the sewage tank, outer cylinders arranged on the two sides of the sewage tank, transmission blocks, handle springs and limiting rods arranged in the outer cylinders, guide holes and inserting grooves formed in the surface of the sewage tank, and a cover plate arranged on the sewage tank. An inserting plate, a guide rod, a first supporting rod and a second supporting rod are arranged at the bottom of the cover plate, and a first electrode and a first blocking frame are arranged at the bottom of the first supporting rod; the water level monitoring device has the beneficial effects that the blocking frames are arranged on the outer sides of the two induction electrodes, and the back faces of the blocking frames face the water inlet connected with the water conveying pipe, so that the electrodes are protected and blocked, sewage is prevented from directly splashing to the two electrodes when entering the water inlet, and then the water level monitoring accuracy of the scrubber applying the water level monitoring device is improved; sewage in the sewage tank is prevented from splashing to the sensor, and the applicability of the cleaning device and the scrubber is further improved.

Description

Technical Field

[0001] The utility model relates to the field of floor washing machines, and particularly to a short - circuit prevention water level sensing structure. Background Technique

[0002] Floor washing machines are professional cleaning equipment widely used for floor cleaning in commercial buildings, industrial sites, medical institutions, schools, hotels and other places. They have diverse designs, including hand - held, push - type or ride - on models to meet the needs of different places. Floor washing machines are equipped with rotating brush disks or bristles, which can thoroughly clean the floor surface while spraying water and detergent to improve the cleaning effect. Their powerful water suction function can quickly suck up the water and dirt on the floor and store them in the sewage tank. The appearance of floor washing machines provides an efficient, convenient and hygienic floor cleaning solution, greatly improving the cleaning efficiency and quality. Among them, the sewage tank of the floor washing machine is used to store the sewage and dirt sucked during the cleaning process. When the brush disk or bristles of the floor washing machine clean the floor surface, the sewage will be sucked into the sewage tank. The sewage tank is usually located at the rear or bottom of the floor washing machine and has an appropriate capacity and sealing performance to avoid sewage leakage. When the sewage tank reaches a certain capacity, the user needs to take it out and pour out the sewage or carry out appropriate treatment.

[0003] Floor washing machines on the market usually come with a water level warning system to ensure the normal use of the sewage tank. The water level warning system includes a connecting column and a water level sensor installed in the sewage tank. One end of the connecting column is connected to the top of the sewage tank, and the other end is connected to the water level sensor, so that the water level sensor is at the same height as the water level warning line in the sewage tank. Once the sewage reaches the preset warning line height, the sewage will contact the water level sensor and trigger the water level warning.

[0004] However, a water delivery pipe is connected to the outside of the sewage tank, and the sewage flows into the sewage tank through the water delivery pipe. In order to enable the sewage tank to hold more sewage, the water inlet of the water delivery pipe in the sewage tank is often set at a position close to the top of the sewage tank and higher than the water level sensor. However, during the use of the floor washing machine, due to reasons such as the movement or shaking of the floor washing machine, when the sewage flows into the sewage tank through the water delivery pipe, the sewage may splash onto the water level sensor when entering the water inlet, resulting in the system wrongly detecting that the water level is full and triggering the water level warning. For this reason, the utility model proposes a short - circuit prevention water level sensing structure to solve the problems raised above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a short - circuit prevention water level sensing structure to solve the problems raised in the above - mentioned background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: An anti-short-circuit water level sensing structure, the anti-short-circuit water level sensing structure includes: a sewage tank, a water delivery pipe is connected to the surface of the sewage tank, outer cylinders are arranged on both sides of the sewage tank, a transmission block, a handle spring and a limiting rod are arranged inside the outer cylinders, and a guiding hole and a slot are formed on the surface of the sewage tank;

[0007] A cover plate, the cover plate is arranged on the sewage tank, an insertion plate, a guiding rod, a first support rod and a second support rod are arranged at the bottom of the cover plate, a first electrode and a first retaining frame are arranged at the bottom of the first support rod, and a second electrode and a second retaining frame are arranged at the bottom of the second support frame.

[0008] Preferably, insertion holes are formed on both sides of the sewage tank, the insertion holes penetrate through the slots, the insertion holes are located at the central positions of the outer cylinders, and limiting rods are inserted into the insertion holes.

[0009] Preferably, a transmission block is fixed to the end face of the limiting rod, a spring is sleeved on the surface of the limiting rod, one end of the spring is fixedly connected to the transmission block, and the other end of the spring is fixedly connected to the outer wall of the sewage tank.

[0010] Preferably, the transmission block is in a disc shape, the transmission block can be embedded into the outer cylinder, and a handle is fixed to the surface of the transmission block.

[0011] Preferably, there are two groups of guiding rods, the two groups of guiding rods are respectively located on both sides of the lower surface of the cover plate, the end faces of the guiding rods are processed with rounded corners, the outer wall of the guiding rod and the inner wall of the guiding hole are in sliding connection, there are two groups of insertion plates, the two groups of insertion plates are respectively located on both sides of the lower surface of the cover plate, a limiting hole is formed on the surface of the insertion plate, the limiting hole penetrates through the insertion plate, the limiting rod can be inserted into the limiting hole, and the insertion plate can be inserted into the slot.

[0012] Preferably, the first support rod and the second support rod are symmetrically distributed about the central axis of the lower surface of the cover plate, the first retaining frame is fixed on the first support rod, the second retaining frame is fixed on the second support rod, the first electrode is located inside the first retaining frame, the second electrode is located inside the second retaining frame, through openings are formed at the bottoms of the first retaining frame and the second retaining frame, and the first retaining frame and the second retaining frame are opposite to the water inlet of the water delivery pipe.

[0013] Preferably, the first electrode and the second electrode are flush. When the first electrode and the second electrode are simultaneously in contact with the sewage in the sewage tank, the first electrode and the second electrode form an electrical connection.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] A short - circuit - proof water level sensing structure proposed by the present utility model protects and blocks the electrodes by arranging a retaining frame outside the two sensing electrodes, and the back of the retaining frame faces the water inlet connected to the water delivery pipe. This prevents sewage from directly splashing onto the two electrodes when it enters the water inlet, thereby improving the accuracy of water level monitoring of the floor washer using the water level monitoring device, preventing sewage in the sewage tank from splashing and flying towards the sensor, further improving the applicability of the cleaning device and the floor washer. At the same time, the cover plate is convenient for installation and disassembly, facilitating the timely treatment of the sewage stored inside the sewage tank. This avoids the problem that during the use of the floor washer, due to reasons such as the movement or shaking of the floor washer, when sewage flows into the sewage tank through the water delivery pipe, the sewage may splash onto the water level sensor when entering the water inlet, causing the system to erroneously detect that the water level is full and trigger a water level warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the present utility model;

[0017] Figure 2 is a side view of the structure of the present utility model;

[0018] Figure 3 is a schematic structural view of the slot and the guide hole of the present utility model;

[0019] Figure 4 is a schematic structural view of the guide rod of the present utility model;

[0020] Figure 5 is a schematic structural view of the first electrode and the second electrode of the present utility model;

[0021] Figure 6 is a cross - sectional view of the sewage tank structure of the present utility model.

[0022] In the figure: 1, sewage tank; 2, water delivery pipe; 3, outer cylinder; 4, cover plate; 5, indicator light; 6, guide hole;

[0023] 7, slot; 8, limit hole; 9, guide rod; 10, first retaining frame; 11, first support rod; 12, second retaining frame; 13, second support rod; 14, first electrode; 15, second electrode; 16, through - hole; 17, handle; 18, transmission block; 19, spring; 20, limit rod; 21, slot; 22, insertion plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of them, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-6 , the present utility model provides a technical solution: a short - circuit - proof water level sensing structure, the short - circuit - proof water level sensing structure includes: a sewage tank 1, a water delivery pipe 2 is connected to the surface of the sewage tank 1, outer cylinders 3 are arranged on both sides of the sewage tank 1, a transmission block 18, a handle 17, a spring 19 and a limiting rod 20 are arranged inside the outer cylinders 3, a guiding hole 6 and a slot 7 are opened on the surface of the sewage tank 1;

[0026] A cover plate 4, the cover plate 4 is arranged on the sewage tank 1, a plug board 22, a guiding rod 9, a first support rod 11 and a second support rod 13 are arranged at the bottom of the cover plate 4, a first electrode 14 and a first stop frame 10 are arranged at the bottom of the first support rod 11, and a second electrode 15 and a second stop frame 12 are arranged at the bottom of the second support frame;

[0027] During use, by arranging stop frames outside the two induction electrodes, and the back of the stop frames faces the water inlet connected to the water delivery pipe 2, thereby protecting and blocking the electrodes, preventing sewage from directly splashing onto the two electrodes when entering the water inlet, further improving the accuracy of water level monitoring of the floor washer applying the water level monitoring device, preventing the sewage in the sewage tank 1 from splashing and flying towards the sensor, further improving the applicability of the cleaning device and the floor washer. At the same time, the cover plate 4 is convenient for installation and disassembly, facilitating the timely treatment of the sewage stored inside the sewage tank 1.

[0028] Embodiment 2: On the basis of Embodiment 1, jacks 21 are opened on both sides of the sewage tank 1. The jacks 21 penetrate through the slots 7. The jacks 21 are located at the central position of the outer cylinder 3. A limiting rod 20 is inserted into the jacks 21. A transmission block 18 is fixed to the end face of the limiting rod 20. A spring 19 is sleeved on the surface of the limiting rod 20. One end of the spring 19 is fixedly connected to the transmission block 18, and the other end of the spring 19 is fixedly connected to the outer wall of the sewage tank 1. The transmission block 18 is disc-shaped. The transmission block 18 can be embedded into the outer cylinder 3. A handle 17 is fixed to the surface of the transmission block 18. There are two groups of guide rods 9. The two groups of guide rods 9 are respectively located on both sides of the lower surface of the cover plate 4. The end face of the guide rod 9 is processed with a chamfer. The outer wall of the guide rod 9 and the inner wall of the guide hole 6 are in sliding connection. There are two groups of insertion plates 22. The two groups of insertion plates 22 are respectively located on both sides of the lower surface of the cover plate 4. A limiting hole 8 is opened on the surface of the insertion plate 22. The limiting hole 8 penetrates through the insertion plate 22. The limiting rod 20 can be inserted into the limiting hole 8. The insertion plate 22 can be inserted into the slot 7.

[0029] During use, when it is necessary to treat the sewage inside the sewage tank 1, first, manually pull the handle 17, which will drive the transmission block 18 to move, thereby driving the spring 19 to be stretched under force. At the same time, the limiting rod 20 will be driven to move, so that the limiting rod 20 is withdrawn from the limiting hole 8 and the slot 7. Keep the state of the limiting rod 20 at this time, thus realizing the release of the limit. Subsequently, by moving the cover plate 4 from bottom to top, the insertion plate 22 will be withdrawn from the slot 7, and at the same time, the guide rod 9 will be withdrawn from the guide hole 6, realizing the removal of the cover plate 4, which is convenient for treating the sewage. When it is necessary to close the cover plate 4 after cleaning, by manually pulling the handle 17, the transmission block 18 will be driven to move, so that the spring 19 is stretched under force, and the spring 19 will store elastic potential energy. At the same time, the limiting rod 20 will move out of the slot 7. Keep the state of the limiting rod 20 at this time. Subsequently, move the cover plate 4 from top to bottom. First, insert the corresponding guide rod 9 into the guide hole 6. The end face of the guide rod 9 is processed with a chamfer to improve the smoothness of the connection. Under the pre-positioning of the guide rod 9 and the guide hole 6, the insertion plate 22 will automatically align with the slot 7. With continuous pushing, the insertion plate 22 will be directly inserted into the slot 7. When the insertion plate 22 is completely inserted into the slot 7, the limiting hole 8 and the limiting rod 20 are on the same horizontal line. At this time, release the handle 17. Under the action of the spring 19's rebound, the limiting rod 20 will automatically insert into the limiting hole 8, realizing the limit fixation of the cover plate 4. At the same time, the handle 17, the spring 19, the transmission block 18, and the limiting rod 20 will automatically be received into the outer cylinder 3, thereby protecting them. The operation is convenient and the efficiency of cleaning sewage is improved.

[0030] Embodiment 3: On the basis of Embodiment 2, the first support rod 11 and the second support rod 13 are symmetrically distributed about the central axis of the lower surface of the cover plate 4. The first stop frame 10 is fixed on the first support rod 11, and the second stop frame 12 is fixed on the second support rod 13. The first electrode 14 is located inside the first stop frame 10, and the second electrode 15 is located inside the second stop frame. Through openings 16 are provided at the bottoms of both the first stop frame 10 and the second stop frame 12. The first stop frame 10 and the second stop frame 12 are positioned right at the water inlet of the water delivery pipe 2. The first electrode 14 and the second electrode 15 are flush. When the first electrode and the second electrode 15 are simultaneously in contact with the sewage in the sewage tank 1, the first electrode 14 and the second electrode 15 form an electrical connection;

[0031] During use, the backs of the provided first stop frame 10 and second stop frame 12 both face the water inlet where the water delivery pipe 2 is connected to the sewage tank 1, thus forming a barrier to prevent sewage from splashing onto the two electrodes. As the sewage in the sewage tank 1 continues to be stored, the water level of the sewage will continue to rise until it contacts the stop frame. The through opening 16 is provided at the bottom of the stop frame, allowing the sewage to continue to rise and contact the electrodes. When the first electrode 14 and the second electrode 15 are both in contact with the sewage, the first electrode 14 and the second electrode 15 will be electrically connected and electrically connected to the indicator light 5 on the cover plate 4, and the indicator light 5 will continuously flash to give a reminder.

[0032] In actual use, by providing corresponding stop frames outside the two induction electrodes, and the backs of the stop frames face the water inlet connected to the water delivery pipe 2, the electrodes are thus protected and blocked, preventing sewage from directly splashing onto the two electrodes when entering the water inlet, thereby improving the accuracy of monitoring the water level of the floor washer using the water level monitoring device, preventing the sewage in the sewage tank 1 from splashing and flying towards the sensor, further improving the applicability of the cleaning device and the floor washer. At the same time, the cover plate 4 is convenient for installation and disassembly, facilitating the timely treatment of the sewage stored inside the sewage tank 1. This avoids the problem that: during the use of the floor washer, due to reasons such as the movement or shaking of the floor washer, when the sewage flows into the sewage tank 1 through the water delivery pipe 2, the sewage may splash onto the water level sensor when entering the water inlet, causing the system to erroneously detect that the water level is full and trigger a water level warning.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A short-circuit-proof water level sensing structure, characterized in that: The short-circuit prevention water level sensing structure includes: a sewage tank (1), a water delivery pipe (2) is connected to the surface of the sewage tank (1), outer cylinders (3) are arranged on both sides of the sewage tank (1), a transmission block (18), a handle (17), a spring (19) and a limiting rod (20) are arranged inside the outer cylinder (3), and a guiding hole (6) and a slot (7) are formed on the surface of the sewage tank (1); A cover plate (4) is arranged on the sewage tank (1), a plug board (22), a guiding rod (9), a first support rod (11) and a second support rod (13) are arranged at the bottom of the cover plate (4), a first electrode (14) and a first stop frame (10) are arranged at the bottom of the first support rod (11), and a second electrode (15) and a second stop frame (12) are arranged at the bottom of the second support frame.

2. The anti-short-circuit water level sensing structure according to claim 1, wherein: Insertion holes (21) are formed on both sides of the sewage tank (1), the insertion holes (21) penetrate through the slot (7), the insertion holes (21) are located at the central position of the outer cylinder (3), and a limiting rod (20) is inserted into the insertion holes (21).

3. The anti-short-circuit water level sensing structure according to claim 1, characterized in that: A transmission block (18) is fixed to the end face of the limiting rod (20), a spring (19) is sleeved on the surface of the limiting rod (20), one end of the spring (19) is fixedly connected to the transmission block (18), and the other end of the spring (19) is fixedly connected to the outer wall of the sewage tank (1).

4. A short - circuit - proof water level sensing structure according to claim 1, characterized in that: The transmission block (18) is in a disc shape, the transmission block (18) can be embedded into the outer cylinder (3), and a handle (17) is fixed to the surface of the transmission block (18).

5. The water level sensing structure for preventing short circuit according to claim 1, characterized in that: There are two groups of guiding rods (9), the two groups of guiding rods (9) are respectively located on both sides of the lower surface of the cover plate (4), the end faces of the guiding rods (9) are processed with rounded corners, the outer wall of the guiding rod (9) is in sliding connection with the inner wall of the guiding hole (6), there are two groups of plug boards (22), the two groups of plug boards (22) are respectively located on both sides of the lower surface of the cover plate (4), a limiting hole (8) is formed on the surface of the plug board (22), the limiting hole (8) penetrates through the plug board (22), the limiting rod (20) can be inserted into the limiting hole (8), and the plug board (22) can be inserted into the slot (7).

6. The water level sensing structure for preventing short circuit according to claim 1, characterized in that: The first support rod (11) and the second support rod (13) are symmetrically distributed about the central axis of the lower surface of the cover plate (4), the first stop frame (10) is fixed on the first support rod (11), the second stop frame (12) is fixed on the second support rod (13), the first electrode (14) is located inside the first stop frame (10), the second electrode (15) is located inside the second stop frame, through openings (16) are formed at the bottoms of the first stop frame (10) and the second stop frame (12), and the first stop frame (10) and the second stop frame (12) are opposite to the water inlet of the water delivery pipe (2).

7. The water level sensing structure for preventing short circuit according to claim 1, characterized in that: The first electrode (14) and the second electrode (15) are flush. When the first electrode and the second electrode (15) are simultaneously in contact with the sewage in the sewage tank (1), the first electrode (14) and the second electrode (15) form an electrical connection.

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