Waste liquid pretreatment device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a waste liquid pretreatment device, and aims to solve the problem that solid garbage on a filter screen needs to be manually treated by an existing waste liquid treatment device. The waste liquid pretreatment device comprises a box body; the support is arranged in the box body and located between the two opposite side walls of the box body, and the two ends of the support are fixedly connected with the two opposite side walls of the box body respectively; the filter plate is detachably arranged on the upper surface of the support, and filter holes are formed in the filter plate; the push plate is arranged in the box body and is positioned above the filter plate; the two ends of the rotating shaft are fixedly arranged on the two opposite side walls of the box body, the upper end of the push plate is detachably connected with the rotating shaft, so that the push plate can rotate around the rotating shaft under the driving of the rotating shaft, and the lower end of the push plate can sweep the upper surface of the filter plate; and the driving device is arranged on the outer side wall of the box body and is connected with the rotating shaft. The device can utilize the driving device to drive the push plate to automatically clean solid wastes on the filter plate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a waste liquid pretreatment device. Background Technology

[0002] Nursing waste liquid pretreatment equipment is a waste liquid treatment device used in hospitals, nursing homes, and other similar facilities. It can perform preliminary treatment on nursing waste liquid, such as removing solids, particles, foreign matter, impurities, and bacteria, reducing the concentration and pollution level of the waste liquid, thereby minimizing environmental pollution and hygiene safety risks.

[0003] Existing nursing waste pretreatment devices primarily use filtration for solid-liquid separation during wastewater pretreatment. However, the filtered solid waste accumulates on top of the filter screen and clogs the filter pores. Therefore, it is necessary to remove the solid waste from the filter screen promptly to ensure the proper functioning of the wastewater pretreatment device.

[0004] Currently, the primary method for cleaning solid waste accumulated on filter screens is manual removal, such as by grabbing the solid waste with one's hands. Because solid waste is harmful to the human body, protective gloves must be worn during manual removal. This method not only requires manual labor, increasing additional labor and time costs, but is also inefficient, reducing the pretreatment efficiency of wastewater. Furthermore, personnel performing the cleanup face the safety risk of infection from the solid waste. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing nursing waste pretreatment devices require manual handling of solid waste on the filter screen.

[0006] This utility model provides a waste liquid pretreatment device, comprising: a housing; a support, the support being disposed within the housing and located between two opposite side walls of the housing, with both ends of the support being fixedly connected to the two opposite side walls of the housing respectively; a filter plate, the filter plate being detachably disposed on the upper surface of the support, the filter plate having filter holes; a push plate, the push plate being disposed within the housing and located above the filter plate; a rotating shaft, the two ends of the rotating shaft being fixedly disposed on the two opposite side walls of the housing, the upper end of the push plate being detachably connected to the rotating shaft, so that the push plate can rotate around the rotating shaft under the drive of the rotating shaft, and the lower end of the push plate can sweep across the upper surface of the filter plate; and a driving device, the driving device being disposed on the outer side wall of the housing and connected to the rotating shaft, for driving the rotating shaft to rotate.

[0007] Furthermore, a detachable cleaning head is provided at the lower end of the push plate, so that when the lower end of the push plate is rotated to be above the upper surface of the filter plate, the cleaning head can abut against the upper surface of the filter plate.

[0008] Furthermore, it also includes a drainage hopper, which is disposed inside the box and located below the support.

[0009] Furthermore, it also includes a liquid collection tank, which is disposed inside the tank and located below the drainage hopper.

[0010] Furthermore, a pressure sensor is installed at the bottom of the liquid collection tank to detect the height of the liquid collected in the liquid collection tank.

[0011] Furthermore, a first door that can be opened is provided on the side wall of the box body at a position opposite to the liquid collection tank.

[0012] Furthermore, it also includes a solid collection box, which is disposed adjacent to one side of the support.

[0013] Furthermore, a weighing sensor is installed at the bottom of the solid collection box to detect the weight of the solids collected in the solid collection box.

[0014] Furthermore, a second, openable door is provided on the side wall of the box, opposite to the solid collection box.

[0015] Furthermore, a feed inlet is provided on the top surface of the housing at a position opposite to the filter plate, and a feed hopper is provided on the feed inlet, with an openable top cover covering the feed hopper.

[0016] The waste liquid pretreatment device in this embodiment uses a drive device to push a pusher plate to move the solid waste remaining on the surface of the filter plate into a solid collection box, thereby effectively preventing the filter holes on the filter plate from being blocked by the accumulation of solid waste and effectively improving the pretreatment efficiency of nursing waste liquid. The filter plate separates and recycles solid and liquid waste in the nursing waste liquid, improving the convenience of waste liquid recycling and treatment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a perspective view of the waste liquid pretreatment device in the embodiment of this utility model;

[0019] Figure 2 for Figure 1 Front view of the waste liquid pretreatment unit;

[0020] Figure 3 for Figure 1 Longitudinal cross-sectional view of the waste liquid pretreatment unit;

[0021] Figure 4 for Figure 1 Cross-sectional view of the waste liquid pretreatment unit.

[0022] Figure label:

[0023] 1. Box body; 110. First box door; 120. Second box door; 2. Support; 21. Guide plate; 3. Filter plate; 31. Filter hole; 4. Push plate; 5. Rotating shaft; 6. Drive device; 7. Drainage hopper; 8. Liquid collection tank; 9. Solid collection tank; 10. Feed hopper; 11. Top cover. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0025] First, it should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "longitudinal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figures 1 to 3As shown, this embodiment of the present invention provides a waste liquid pretreatment device, which includes a housing 1 and a support 2, a filter plate 3, and a pusher plate 4 disposed within the housing 1. In this embodiment, the housing 1 is a rectangular cube.

[0028] Specifically, such as Figure 3 and Figure 4 As shown, bracket 2 is disposed inside the housing 1 and located between two opposite side walls of the housing 1. Both ends of bracket 2 are fixedly connected to the two opposite side walls of the housing 1. Bracket 2 can be fixed between the two opposite side walls of the housing 1 by welding, or it can be detachably fixed to the two opposite side walls of the housing 1, for example, by hanging the two ends of bracket 2 on the side walls of the housing 1, snapping them onto the side walls of the housing 1, or fixing them to the side walls of the housing 1 with bolts. The other two sides of bracket 2 are perpendicular to the two ends of bracket 2, and these other two sides are respectively opposite to the other two opposite side walls of the housing 1. The other two opposite side walls of the housing 1 are perpendicularly connected to the two opposite side walls of the housing 1 used to fix the two ends of bracket 2.

[0029] Furthermore, such as Figure 3 and Figure 4 As shown, in this embodiment, the cross-section of the bracket 2 along the direction (lateral) parallel to the side wall of the box 1 at both ends of the fixed bracket 2 is arc-shaped, for example, semi-circular. The shape of the longitudinal cross-section of the bracket 2 can be set as needed, and this embodiment of the utility model does not specifically limit this. One side of the bracket 2 is connected to one side wall of the box 1, which can be a fixed connection or a detachable connection. For example, one side of the bracket 2 can be hung on one side wall of the box 1, or snapped onto one side wall of the box 1, or fixed to one side wall of the box 1 with bolts. Thus, both ends and one side of the bracket 2 are connected to the three side walls of the box 1 respectively, thereby more firmly fixing the bracket 2 to the side wall of the box 1.

[0030] like Figure 3 As shown, the filter plate 3 is detachably mounted on the upper surface of the support 2, for example, by snap-fit ​​or bolt connection. The filter plate 3 has filter holes 31 for filtering waste liquid poured onto it, allowing liquid waste to flow through the filter holes 31 while solid waste remains on the filter plate 3. The size and shape of the filter plate 3, as well as the number, shape, size, and arrangement of the filter holes 31, can be determined as needed.

[0031] Furthermore, in order to make the filter plate 3 fit more closely to the support 2, the shape of the filter plate 3 is usually set according to the shape of the support 2. For example, when the transverse cross-section of the support 2 is semi-circular, the filter plate 3 is also set to be semi-circular, and the radius of the semi-circle is the same as that of the semi-circle of the longitudinal cross-section of the support 2, so that the filter plate 3 can fit well with the support 2 and cover the upper surface of the support 2.

[0032] like Figure 3 and Figure 4 As shown, the push plate 4 is disposed inside the housing 1 and above the filter plate 3; the two ends of the rotating shaft 5 are fixedly disposed on two opposite side walls of the housing 1 and are arranged along the longitudinal direction of the filter plate 3. The upper end of the push plate 4 is detachably connected to the rotating shaft 5, so that the push plate 4 can rotate under the drive of the rotating shaft 5, and the lower end of the push plate 4 can sweep across the upper surface of the filter plate 3. Specifically, the rotating shaft 5 can be passed through the upper end of the push plate 4; then, the two ends of the rotating shaft 5 are fixed to two opposite side walls of the housing 1. The two ends of the bracket 2 are also fixed to these two opposite side walls of the housing 1. The drive device 6 is disposed on the outer side wall of the housing 1 and connected to the rotating shaft 5. The drive device 6 includes a motor and a transmission device. The output end of the motor can be connected to one end of the rotating shaft 5 through the transmission device, and the rotating shaft 5 is driven to rotate by the motor, so that the push plate 4 rotates around the rotating shaft 5 under the drive of the rotating shaft 5. During the rotation of the push plate 4, the lower end of the push plate 4 can sweep across the upper surface of the filter plate 3, for example, from one side of the bracket 2 connected to the side wall of the housing 1 to the other side of the bracket 2, thereby removing the solids remaining on the upper surface of the filter plate 3.

[0033] Furthermore, to better remove solids remaining on the upper surface of the filter plate 3, a removable cleaning head (not shown in the figure) can be provided at the lower end of the push plate 4. When the lower end of the push plate 4 rotates to be above the upper surface of the filter plate 3, the cleaning head can come into contact with the upper surface of the filter plate 3. By providing a removable cleaning head at the lower end of the push plate 4, it is possible to install an appropriate cleaning head at the lower end of the push plate 4 according to the properties of the solid matter remaining on the upper surface of the filter plate 3, such as the type, size, and hardness of the solid matter, thereby achieving a better cleaning effect on the upper surface of the filter plate 3.

[0034] like Figure 3 As shown, an inlet (not shown in the figure) is provided on the top surface of the housing 1, opposite to the filter plate 3. A feed hopper 10 is provided on the feed inlet, and an openable top cover 11 is provided on the feed hopper 10. By opening the top cover 11, waste liquid can be poured into the housing 1 through the feed hopper 10 and the feed inlet. Since the feed inlet is located above the filter plate 3, after the waste liquid enters the housing 1, it will fall onto the filter plate 3. The filter plate 3 will filter the solid waste, leaving it on the filter plate 3, while the liquid waste will continue to move downward through the filter holes 31 on the filter plate 3.

[0035] like Figure 3 As shown, the waste liquid pretreatment device in this embodiment also includes a diversion hopper 7 and a liquid collection tank 8 disposed within the housing 1. The diversion hopper 7 is located below the support 2 and has openings at both the top and bottom. The liquid collection tank 8 is located below the diversion hopper 7 and is used to collect liquid waste from the waste liquid. When the waste liquid is poured onto the filter plate 3, the liquid waste in the waste liquid passes through the filter holes 31 on the filter plate 3, enters the diversion hopper 7, and is finally guided into the liquid collection tank 8 by the diversion hopper 7. Figure 3 As shown, the diversion hopper 7 can be an inverted funnel shape or a pyramid shape, which facilitates the guidance of liquid waste passing through the filter plate 3 into the liquid collection tank 8.

[0036] Furthermore, a pressure sensor (not shown in the figure) is installed at the bottom of the liquid collection tank 8 to detect the height of the collected liquid waste. The pressure sensor detects the pressure of the collected liquid waste in the liquid collection tank 8 and calculates the height of the collected liquid waste based on the detected pressure. When the height of the collected liquid waste in the liquid collection tank 8 reaches a set threshold, an audible and visual alarm will notify relevant personnel to clean the liquid waste in the liquid collection tank 8 or replace it with an empty one, preventing liquid waste from overflowing from the liquid collection tank 8 and polluting the environment.

[0037] Furthermore, to facilitate the removal of the liquid collection tank 8 from the housing 1, such as... Figure 2 As shown, a first door 110 is provided on the side wall of the housing 1, opposite to the liquid collection tank 8. Opening the first door 110 allows the liquid collection tank 8 to be removed from or placed back into the housing 1. A handle can be provided on the liquid collection tank 8 to facilitate its movement.

[0038] like Figure 3 and Figure 4As shown, the waste liquid pretreatment device in this embodiment also includes a solid collection box 9 disposed inside the housing 1 for collecting solid waste from the waste liquid. The solid collection box 9 is disposed adjacent to the side of the support 2 that is not connected to the side wall of the housing 1. The solid collection box 9 and the support 2 are arranged side by side, and the opening end of the upper surface of the solid collection box 9 is flush with the top of the support 2, or slightly lower than the top of the side of the support 2, so that when the push plate 4 sweeps across the upper surface of the filter plate 3 fixed on the upper surface of the support 2, it can sweep the solid waste on the upper surface of the filter plate 3 into the solid collection box 9. To facilitate the entry of solid waste into the solid collection box 9, a guide plate 21 is provided on the end of the side of the support 2 adjacent to the solid collection box 9. The guide plate 21 forms a certain angle with the side of the support 2 and extends into the opening at the top of the solid collection box 9. This allows the solid waste on the upper surface of the filter plate 3 to fall into the solid collection box 9 along the guide plate 21 when it leaves the end of the side of the support 2 under the push of the push plate 4.

[0039] Furthermore, a weighing sensor (not shown in the figure) is installed at the bottom of the solid waste collection box 9 to detect the weight of the solid waste collected in the solid waste collection box 9. When the weight of the solid waste in the solid waste collection box 9 detected by the weighing sensor reaches the set threshold weight, relevant personnel will be notified through an audible and visual alarm, indicating that the solid waste in the solid waste collection box 9 needs to be cleaned or the solid waste collection box 9 needs to be replaced with an empty one.

[0040] Furthermore, to facilitate the removal of the solid collection box 9 from the box body 1, such as... Figure 2 and Figure 3 As shown, a second, openable door 120 is provided on the side wall of the housing 1, opposite to the solid collection box 9. Opening the second door 120 allows the solid collection box 9 to be removed from or placed back into the housing 1. A handle can be provided on the solid collection box 9 to facilitate its movement.

[0041] When using the waste liquid pretreatment device in this embodiment of the invention to treat waste liquid...

[0042] Open the top cover 11 on the top surface of the feed hopper 10 located on the top surface of the housing 1 to open the feed hopper 10. Then, pour the untreated nursing waste liquid into the interior of the housing 1 through the feed hopper 10 and convey it vertically downwards to the support 2. The nursing waste liquid undergoes solid-liquid separation through the filter holes 31 on the filter plate 3 set on the support 2. The solid waste remains on the filter plate 3, while the liquid waste passes through the filter plate 3 and is guided into the liquid collection tank 8 by the guide bucket 7. When the drive device 6 is started, the push plate 4 is rotated by the rotating shaft 5, so that the lower end of the push plate 4 (or the cleaning head set at the lower end of the push plate 4) sweeps across the upper surface of the filter plate 3 from right to left (e.g., ...). Figure 3As shown, solid waste remaining on the surface of the filter plate 3 is pushed out of the support 2 from the side adjacent to the solid collection tank 9 and enters the solid collection tank 9 through the guide plate 21. A pressure sensor installed at the bottom of the liquid collection tank 8 calculates the height of the liquid waste collected in the liquid collection tank 8 based on the pressure. When the height of the liquid waste collected in the liquid collection tank 8 reaches the set threshold height, an audible and visual alarm will be triggered, prompting relevant personnel to clean the liquid collection tank 8. A weighing sensor installed at the bottom of the solid collection tank 9 detects the weight of the solid waste collected in the solid collection tank 9. When the weight of the solid waste detected by the weighing sensor in the solid collection tank 9 reaches the set threshold weight, an audible and visual alarm will be triggered, prompting relevant personnel to clean the solid waste in the solid collection tank 9. The first door 110 on the side wall of the tank 1 can be opened to remove and put back the liquid collection tank 8; the second door 120 on the side wall of the tank 1 can be opened to remove and put back the solid collection tank 9. This completes the pretreatment of the nursing waste liquid.

[0043] The waste liquid pretreatment device in this embodiment uses a drive device to automatically push the solid waste remaining on the surface of the filter plate into the solid collection box, thereby effectively preventing the filter holes on the filter plate from being blocked by the accumulation of solid waste. Furthermore, the method of cleaning the solid waste remaining on the filter plate by the drive device replacing the manual removal of solid waste from the filter plate effectively improves the pretreatment efficiency of nursing waste liquid. The filter plate separates and recycles solid and liquid waste in the nursing waste liquid, improving the convenience of waste liquid recycling and treatment. It also eliminates the potential safety risks to operators posed by manually removing solid waste.

[0044] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A waste liquid pretreatment device, characterized in that, include: Box (1); A bracket (2) is disposed inside the box (1) and located between two opposite side walls of the box (1). The two ends of the bracket (2) are fixedly connected to the two opposite side walls of the box (1); A filter plate (3) is detachably disposed on the upper surface of the bracket (2), and a filter hole (31) is provided on the filter plate (3); Push plate (4), the push plate (4) is disposed inside the housing (1) and located above the filter plate (3); A rotating shaft (5) is fixed at both ends on two opposite side walls of the housing (1). The upper end of the push plate (4) is detachably connected to the rotating shaft (5), so that the push plate (4) can rotate around the rotating shaft (5) under the drive of the rotating shaft (5), and the lower end of the push plate (4) can sweep across the upper surface of the filter plate (3). A drive device (6) is disposed on the outer side wall of the housing (1) and connected to the rotating shaft (5) for driving the rotating shaft (5) to rotate.

2. The waste liquid pretreatment device according to claim 1, characterized in that, A detachable cleaning head is provided at the lower end of the push plate (4) so ​​that when the lower end of the push plate (4) is rotated to be above the upper surface of the filter plate (3), the cleaning head can abut against the upper surface of the filter plate (3).

3. The waste liquid pretreatment device according to claim 1, characterized in that, It also includes a drainage hopper (7), which is disposed inside the housing (1) and located below the support (2).

4. The waste liquid pretreatment device according to claim 3, characterized in that, It also includes a liquid collection tank (8), which is disposed inside the tank body (1) and located below the diversion hopper (7).

5. The waste liquid pretreatment device according to claim 4, characterized in that, A pressure sensor is provided at the bottom of the liquid collection tank (8) to detect the height of the liquid collected in the liquid collection tank (8).

6. The waste liquid pretreatment device according to claim 4, characterized in that, A first door (110) that can be opened is provided on the side wall of the box (1) at a position opposite to the liquid collection box (8).

7. The waste liquid pretreatment device according to claim 1, characterized in that, It also includes a solid collection box (9), which is disposed adjacent to one side of the support (2).

8. The waste liquid pretreatment device according to claim 7, characterized in that, The bottom of the solid collection box (9) is equipped with a weighing sensor to detect the weight of the solid collected in the solid collection box (9).

9. The waste liquid pretreatment device according to claim 7, characterized in that, A second, openable door (120) is provided on the side wall of the box (1) at a position opposite to the solid collection box (9).

10. The waste liquid pretreatment apparatus according to any one of claims 1 to 9, characterized in that, A feed inlet is provided on the top surface of the box (1) at a position opposite to the filter plate (3). A feed hopper (10) is provided on the feed inlet, and an openable top cover (11) is provided on the feed hopper (10).

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