Downward-pressing type sewage collecting device and cleaning equipment

Abstract

The utility model provides a down-pressing type sewage collecting device and cleaning equipment, the down-pressing type sewage collecting device comprises a box body, a box cover, a liquid suction pipeline forming a liquid inlet and a negative pressure port, a negative pressure pipeline, a flow guide module communicating the liquid inlet and an inner cavity of the box body, and a floating part sleeved on the negative pressure pipeline, wherein a pressure flow section which obliquely extends downwards and a drainage section which extends downwards from the lower end of the pressure flow section are formed in the flow guide module; a shielding part is formed on the floating part. On one hand, on the basis of the layout of the pressure flow section and the discharge flow section formed by the flow guide modules, sewage is collected by changing the flow direction downwards section by section, and dispersion and splashing phenomena generated when the sewage impacts the inner wall of the box body are effectively reduced; on the other hand, the floating part is arranged, the position of the shielding part relative to the negative pressure opening is adjusted in real time based on changes of the liquid level of the inner cavity of the box body, the probability that liquid drops enter a negative pressure pipeline is greatly reduced, the service life of equipment is prolonged, and in addition, the structure is simple and reliable and disassembly and assembly are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment, specifically relating to a pressure-type sewage collection device, and also to a cleaning equipment using the pressure-type sewage collection device. Background Technology

[0002] Among cleaning tools, vacuum cleaners are those that use negative pressure to suck up and collect dust from the floor. Currently, with continuous technological development and upgrades, existing vacuum cleaners can not only sweep and vacuum, but also mop, achieving a combined sweeping and mopping function, greatly improving cleaning effectiveness and convenience.

[0003] Existing sweeping and mopping vacuum cleaners generally have a clean water tank and a dirty water tank. When mopping, the clean water in the clean water tank is output by the water pump and wets the floor brush. The motor then drives the floor brush to rotate and scrub the floor. The dirty water generated during the scrubbing process is sucked into the dirty water tank for storage. The dirty water tank is generally equipped with a liquid inlet pipe and an air extraction pipe. The negative pressure component generates negative pressure in the dirty water tank through the air extraction pipe, so that the dirty water is sucked into the dirty water tank through the liquid inlet pipe.

[0004] However, in actual use, the following technical problems can easily occur when wastewater from sweeping and mopping enters the tank:

[0005] 1. Wastewater usually enters the wastewater tank from the top outlet or side wall of the pipe. The wastewater is prone to impacting the inner wall of the wastewater tank and spreading out, which greatly increases the probability of wastewater droplets entering the exhaust pipe and causing short circuits and damage to motor equipment.

[0006] 2. As the water level in the sewage tank rises, the sewage level approaches the top air vent of the venting pipe. With the movement or shaking of the sewage tank, there is a high risk of sewage overflowing into the air vent. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved down-pressure sewage collection device.

[0008] In addition, a cleaning device is also provided.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A pressure-type sewage collection device includes a tank, a tank cover, a suction pipe and a negative pressure pipe extending upward from the bottom of the tank and forming an inlet and a negative pressure port respectively from the top. The collection device also includes a flow guiding module connecting the inlet and the inner cavity of the tank, and a floating component sleeved on the negative pressure pipe. The flow guiding module has a downwardly extending pressure section and a discharge section extending downward from the lower end of the pressure section. Sewage enters the inner cavity of the tank by passing through the pressure section and the discharge section sequentially from the inlet and being gradually pressed downward. The floating component has a shielding part that matches the negative pressure port. As the liquid level in the inner cavity of the tank changes, the shielding part gradually covers the negative pressure port upward or opens it downward as the floating component moves up and down.

[0011] Preferably, the negative pressure port is located on one side of the top of the suction pipe and faces the first direction, while the pressure flow section faces the second direction, wherein the first and second directions are opposite. Here, the sewage inlet is located far from the negative pressure port, further reducing the risk of sewage entering the negative pressure pipe.

[0012] Preferably, the angle between the pressure section and the discharge section is an obtuse angle. Here, the downward flow of sewage is gentle, preventing dispersion and splashing.

[0013] Preferably, the flow guiding module includes a side panel mounted on top of the liquid suction pipe and surrounding the circumference of the liquid suction pipe, and a cover plate disposed on top of the side panel, wherein a flow discharge section is formed between the side panel and the side wall of the liquid suction pipe.

[0014] Specifically, the side panel includes a first plate that matches and fits against the side wall of the suction pipe, two second plates extending outward from opposite sides of the first plate and tangent to the side wall of the suction pipe, and a third plate connected between the two second plates. The cover plate includes an inclined plate extending obliquely upward from the top of the third plate, a horizontal plate extending horizontally from one end of the inclined plate and located directly above the suction pipe, and a side plate. A pressure flow section is formed between the inclined plate and the top of the suction pipe, and a buffer section is formed between the horizontal plate and the top of the suction pipe. Wastewater enters the buffer section upward, forming a buffer before entering the pressure flow section. Here, by forming a buffer, the wastewater inflow velocity is reduced, minimizing the impact generated when wastewater passes through the pressure flow section.

[0015] Preferably, the negative pressure pipeline includes a pipeline body, a first segment, and a second segment, wherein the first segment is sleeved and detachably connected to the top of the pipeline body, and the second segment extends from the first segment in a first direction and forms a negative pressure port at its end. This design facilitates the opening or closing of the negative pressure port by the float during vertical movement, resulting in a simple structure and convenient implementation.

[0016] Preferably, the diameter of the second part gradually increases along the first direction.

[0017] Preferably, the floating component includes a float sleeved on the pipe body and an auxiliary plate vertically mounted on the float and located on one side of the first segment, wherein the upper part of the auxiliary plate forms a shielding portion. In some specific embodiments, when the liquid level is at its highest, the float abuts against the bottom end of the first segment, and the shielding portion completely covers the negative pressure port.

[0018] Specifically, the inner diameter of the float is larger than the outer diameter of the pipe body; a limiting protrusion is formed on the side wall of the first segment, and a clearance hole is formed on the auxiliary plate to avoid the limiting protrusion. The limiting protrusion has an inclined surface extending outward from bottom to top, and an arc surface arching upward and tangent to the upper end of the inclined surface. As the liquid level rises, the blocking part gradually covers the negative pressure port along the inclined surface. When the blocking part completely covers the negative pressure port, the limiting protrusion inserts into the clearance hole, and the auxiliary plate hangs on the arc surface from the clearance hole. Here, by making the inner diameter of the float larger than the outer diameter of the pipe body, it is convenient to assemble and disassemble the float; at the same time, when forming the cover, the cooperation of the limiting protrusion and the clearance hole prevents the blocking part from accidentally detaching from the negative pressure port when tilting or shifting.

[0019] Another technical solution of this utility model is a cleaning device that uses the above-mentioned pressure-type sewage collection device.

[0020] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] In existing technologies, wastewater typically enters the wastewater tank from the top outlet or side wall of the pipe. This wastewater easily impacts the inner wall of the tank and splashes, significantly increasing the probability of wastewater droplets entering the exhaust pipe and causing short circuits and damage to motor equipment. Simultaneously, as the water level in the tank rises, the wastewater surface approaches the top air inlet of the extraction pipe, increasing the risk of wastewater overflowing into the air inlet due to tank movement or shaking. This application addresses these shortcomings by comprehensively designing the structure of a downward-pressure wastewater collection device. This device effectively solves the deficiencies and defects of existing technologies. When collecting wastewater, a negative pressure is created within the tank through a negative pressure pipe to draw in the wastewater. The wastewater then passes through the suction pipe and sequentially through the pressure section and discharge section formed by the flow guiding module, thus being gradually pressurized downwards. The wastewater flows downwards into the inner cavity of the tank. Simultaneously, as the liquid level rises within the tank, the floating component gradually rises, causing the shielding part to gradually block the negative pressure port. As the liquid level drops, the floating component descends, causing the shielding part to open the negative pressure port downwards. Therefore, compared to existing technologies, this invention, on the one hand, utilizes the layout of the pressure-reducing and discharge sections formed by the flow guiding module to achieve gradual downward flow changes for wastewater collection, effectively reducing dispersion and splashing caused by wastewater impacting the inner wall of the tank. On the other hand, by setting up the floating component, the position of the shielding part relative to the negative pressure port is adjusted in real time based on changes in the liquid level within the tank, greatly reducing the probability of droplets entering the negative pressure pipe and extending the equipment's service life. Furthermore, the structure is simple, reliable, and easy to assemble and disassemble. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the pressure-type sewage collection device of this utility model;

[0023] Figure 2 This is an exploded view of the structure of the down-pressure sewage collection device of this utility model;

[0024] Figure 3 for Figure 2 Enlarged schematic diagram of a local part of the structure;

[0025] Figure 4 This is a cross-sectional schematic diagram of the pressure-type sewage collection device of this utility model;

[0026] Among them: 1. Box body;

[0027] 2. Box lid;

[0028] 3. Suction pipe; k1. Liquid inlet;

[0029] 4. Negative pressure pipeline; 40. Pipeline body; 41. First segment; 410. Limiting protrusion; m1. Inclined surface; m2. Arc surface; 42. Second segment; k2. Negative pressure port;

[0030] 5. Flow guiding module; 50. Side panel; 501. First plate; 502. Second plate; 503. Third plate; 51. Cover plate; 510. Inclined plate; 511. Horizontal plate; 512. Side plate; d0. Buffer section; d1. Pressure section; d2. Drainage section; 6. Floating component; 60. Float; 61. Auxiliary plate; b. Shielding part; k3. Clearance hole. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0036] like Figures 1 to 4 As shown, the cleaning equipment involved in this embodiment adopts a pressure-type sewage collection device. The sewage collection device includes a box body 1, a box cover 2, a suction pipe 3 and a negative pressure pipe 4 that extend upward from the bottom of the box body 1 and form an inlet k1 and a negative pressure port k2 from the top, respectively, a flow guiding module 5 that connects the inlet k1 and the inner cavity of the box body 1, and a floating component 6 sleeved on the negative pressure pipe 4.

[0037] Specifically, the box body 1 and the box cover 2 are conventional structures; the liquid suction pipe 3 opens from the top to form a liquid inlet k1; the negative pressure pipe 4 includes a pipe body 40, a first part 41, and a second part 42, wherein the first part 41 is sleeved and detachably connected to the top of the pipe body 40, the second part 42 extends from the first part 41 in a first direction and forms a negative pressure port k2 facing the first direction from its end, and the diameter of the second part 42 gradually increases along the first direction.

[0038] In this example, the flow guiding module 5 has a downwardly extending pressure section d1 and a downwardly extending discharge section d2 from the lower end of the pressure section d1. Sewage enters the inner cavity of the box 1 through the pressure section d1 and the discharge section d2 from the inlet k1 and is gradually pressed down. The pressure section d1 faces the second direction, and the first direction and the second direction are opposite to ensure that the sewage inlet position is far away from the negative pressure port, further reducing the risk of sewage entering the negative pressure pipeline.

[0039] In some specific implementations, the angle between the pressure flow section d1 and the discharge section d2 is an obtuse angle to ensure that the sewage flows smoothly under pressure, preventing dispersion and splashing.

[0040] The flow guiding module 5 includes a side panel 50 mounted on top of the liquid suction pipe 3 and surrounding the circumference of the liquid suction pipe 3, and a cover plate 51 disposed on top of the side panel 50, wherein a flow discharge section d1 is formed between the side panel 50 and the side wall of the liquid suction pipe 3.

[0041] For ease of implementation, the side panel 50 includes a first panel 501 that matches and fits against the side wall of the suction pipe 3, two second panels 502 that extend outward from opposite sides of the first panel 501 and are tangent to the side wall of the suction pipe 3, and a third panel 503 connected between the two second panels 502.

[0042] Meanwhile, the cover plate 51 includes an inclined plate 510 extending obliquely upward from the top of the third plate 503, a horizontal plate 511 extending horizontally from one end of the inclined plate 510 and located directly above the suction pipe 3, and a side plate 512. A pressure flow section d2 is formed between the inclined plate 510 and the top of the suction pipe 3, and a buffer section d0 is formed between the horizontal plate 511 and the top of the suction pipe 3. Wastewater enters the buffer section d0 upwards, forming a buffer before entering the pressure flow section d2. The side plate 512 is integrally formed between the inclined plate 510, the horizontal plate 511, and the side panel 50. Here, by forming a buffer, the wastewater inflow velocity is reduced, minimizing the impact of wastewater passing through the pressure flow section.

[0043] In addition, to facilitate processing and installation, the flow guiding module 5, the first split 41, and the second split 42 in this embodiment are connected by an integrally formed connecting rib to enable synchronous installation and disassembly.

[0044] In this example, a shielding part b is formed on the floating component 6 that matches the negative pressure port k2. As the liquid level in the inner cavity of the tank 1 changes, the shielding part b gradually covers the negative pressure port k2 upward or opens it downward as the floating component 6 floats up and down.

[0045] In some specific embodiments, the floating component 6 includes a float 60 sleeved on the pipe body 40 and an auxiliary plate 61 vertically arranged on the float 60 and located on one side of the first split 41, wherein the upper part of the auxiliary plate 61 forms a shielding part b.

[0046] Meanwhile, the inner diameter of the float 60 is larger than the outer diameter of the pipe body 40 (so as to achieve the offset of the float 60 in the radial direction of the pipe body 40); a limiting protrusion 410 is also formed on the side wall of the first split 41, and an avoidance hole k3 is formed on the auxiliary plate 61 to avoid the limiting protrusion 410. The limiting protrusion 410 has an inclined surface m1 extending from bottom to top and outward, and an arc surface m2 arching to the side and tangent to the upper end of the inclined surface m1. As the liquid level rises, the blocking part b gradually blocks the negative pressure port k2 along the inclined surface m1. When the blocking part b completely covers the negative pressure port k2, the limiting protrusion 410 is inserted into the avoidance hole k3, and the auxiliary plate 61 is hung on the arc surface m2 from the avoidance hole k3. That is to say, at the highest liquid level, the float 60 touches the bottom end of the first split 41, and the blocking part b completely covers the negative pressure port. Here, the float's inner diameter is larger than the pipe body's outer diameter, which facilitates the float's assembly and disassembly; at the same time, when forming a cover, the combination of the limiting protrusion and the clearance hole prevents the cover from accidentally detaching from the negative pressure port when tilting or shifting.

[0047] In summary, by adopting this sewage collection device, during sewage collection, a negative pressure is created within the tank through a negative pressure pipe to draw in the sewage. The sewage flows through the suction pipe and sequentially through the pressure-flow section and discharge section formed by the flow guiding module, maintaining a downward flow direction as it enters the inner cavity of the tank under progressively downward pressure. Simultaneously, as the liquid level in the inner cavity of the tank rises, the floating component gradually rises and causes the blocking part to gradually block the negative pressure port. As the liquid level in the inner cavity of the tank falls, the floating component falls and causes the blocking part to open the negative pressure port downward. Therefore, compared with the prior art, this utility model, on the one hand, achieves sewage collection by progressively changing the flow direction downward based on the layout of the pressure-flow section and discharge section formed by the flow guiding module, effectively reducing the dispersion and splashing phenomena caused by sewage impacting the inner wall of the tank; on the other hand, by setting up a floating component, the position of the blocking part relative to the negative pressure port is adjusted in real time based on the changes in the liquid level in the inner cavity of the tank, greatly reducing the probability of droplets entering the negative pressure pipe and improving the service life of the equipment. In addition, the structure is simple, reliable, and easy to assemble and disassemble.

[0048] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A siphon type sewage collecting device comprising a tank, a tank cover, a liquid suction pipe and a negative pressure pipe which respectively extend upward from the bottom and the top of the tank to form a liquid inlet and a negative pressure inlet, characterized in that, The collection device further includes a flow guiding module connecting the inlet and the inner cavity of the tank, and a floating component sleeved on the negative pressure pipe. The flow guiding module has a downwardly extending pressure section and a downwardly extending discharge section from the lower end of the pressure section. Wastewater enters the inner cavity of the tank from the inlet by passing through the pressure section and the discharge section in sequence and being gradually pressed down. The floating component has a shielding part that matches the negative pressure port. As the liquid level in the inner cavity of the tank changes, the shielding part gradually covers the negative pressure port upward or opens it downward as the floating component moves up and down.

2. The sump arrangement of claim 1, wherein, The negative pressure port is located on one side of the top of the liquid suction pipe and faces the first direction, while the pressure flow section faces the second direction, wherein the first direction and the second direction are opposite.

3. The sump assembly of claim 1, wherein, The angle between the pressure section and the discharge section is an obtuse angle.

4. The sump arrangement according to claim 1 or 2 or 3, characterized in that The flow guiding module includes a side panel mounted on top of the liquid suction pipe and surrounding the circumference of the liquid suction pipe, and a cover plate disposed on top of the side panel, wherein the flow discharge section is formed between the side panel and the side wall of the liquid suction pipe.

5. The sump arrangement of claim 4, wherein, The side panel includes a first plate that matches and fits against the side wall of the suction pipe, two second plates that extend outward from opposite sides of the first plate and are tangent to the side wall of the suction pipe, and a third plate connected between the two second plates; the cover plate includes an inclined plate that extends obliquely upward from the top of the third plate, a horizontal plate that extends horizontally from one end of the inclined plate and is located directly above the suction pipe, and a side plate, wherein the inclined plate and the top of the suction pipe form the pressure flow section, and the horizontal plate and the top of the suction pipe also form a buffer section, and sewage enters the buffer section upward to form a buffer and then enters the pressure flow section.

6. The sump assembly of claim 2, wherein, The negative pressure pipeline includes a pipeline body, a first part, and a second part, wherein the first part is sleeved and detachably connected to the top of the pipeline body, and the second part extends from the first part in a first direction and forms the negative pressure port from its end.

7. The sump assembly of claim 6, wherein, The diameter of the second part gradually increases along the first direction.

8. The sump assembly of claim 6, wherein, The floating component includes a float sleeved on the pipe body and an auxiliary plate vertically mounted on the float and located on one side of the first split, wherein the upper part of the auxiliary plate forms the shielding part.

9. The sump arrangement of claim 8, wherein, The inner diameter of the float is larger than the outer diameter of the pipe body; a limiting protrusion is also formed on the side wall of the first split, and a clearance hole is formed on the auxiliary plate to avoid the limiting protrusion. The limiting protrusion has an inclined surface extending from bottom to top and outward, and an arc surface arching upward and tangent to the upper end of the inclined surface. As the liquid level rises, the blocking part gradually blocks the negative pressure port along the inclined surface. When the blocking part completely covers the negative pressure port, the limiting protrusion is inserted into the clearance hole, and the auxiliary plate is hung on the arc surface from the clearance hole.

10. A cleaning device, characterized in that: It employs the down-pressure sewage collection device as described in any one of claims 1-9.

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