Waste liquid collecting device capable of preventing backflow

Abstract

The utility model is applicable to the technical field of medical care of nephrology department, and provides a waste liquid collecting device capable of preventing backflow, which comprises a waste liquid box, a liquid inlet pipe is connected to the middle of the top of the waste liquid box, a foam floating plate capable of vertically lifting and moving is arranged in the waste liquid box, and a position sensor is mounted at the top of the foam floating plate. An anti-backflow mechanism is arranged on the inner top wall of the waste liquid box and comprises a fixing plate, and the fixing plate is fixedly connected to the inner top wall of the waste liquid box. The foam floating plate, the position sensor, the fixing plate, the intercepting blade, the limiting column, the fixing ring, the pull rod, the driven wheel, the arc-shaped groove, the motor, the driving wheel and the sliding column are arranged in a matched mode, the liquid collecting position can be sensed through the position, so that the intercepting blade is controlled to conduct closing action, the purpose of preventing waste liquid from flowing back is achieved, automatic sensing is achieved, and use is convenient. Automatic closing is achieved, operation is more intelligent, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical care in nephrology, and in particular relates to a waste liquid collection device capable of preventing backflow. Background Art

[0002] Kidney disease is a common and frequently occurring disease. If it worsens, it can develop into uremia, which seriously endangers people's health. Chronic kidney disease has become another major disease that threatens human health after cardiovascular and cerebrovascular diseases, tumors, and diabetes. During the treatment of nephrology patients, medical means will be used to discharge the accumulated fluid and waste in the kidneys and drain them into a waste fluid collection box for unified collection.

[0003] In the process of collecting waste liquid, the existing waste liquid collection device often causes waste liquid backflow, which will cause the waste liquid to scatter around the outside of the waste liquid collection box, causing certain pollution to the environment around the waste liquid collection box and lowering the environmental sanitation around the waste liquid collection box. After searching, for example, the patent application number is: 202321232864.7, which is a waste liquid collection device that can prevent backflow. The patent includes: a waste liquid collection box, an anti-backflow component, the anti-backflow component includes a foam floating plate, two L-shaped plastic limit rods and a pipe mounting column, the top of the foam floating plate is fixedly provided with a positive electrode magnet, the bottom of the pipe mounting column is provided with an annular mounting groove, the inside of the annular mounting groove is fixedly provided with an annular negative electrode magnet, the inside of the pipe mounting column is fixedly connected with a waste liquid inlet pipe, the foam floating plate is arranged inside the waste liquid collection box, the top of the waste liquid collection box is provided with a drainage mounting hole, the inner surface of the drainage mounting hole is fixedly provided with an annular rubber sealing ring, the foam floating plate is arranged to drive the positive electrode magnet and the annular negative electrode magnet to attract each other, so as to seal the bottom end of the waste liquid inlet pipe to prevent the waste liquid from flowing back, thereby avoiding the pollution of the surrounding environment of the waste liquid collection box and reducing environmental sanitation. Although this application prevents the backflow of waste liquid, the waste liquid inlet pipe needs to be disassembled every time the foam float is returned to its position, and the operation process is relatively cumbersome; secondly, the waste liquid inlet pipe will enter the interior of the waste liquid tank together with impurities when taking in liquid, and the impurities are difficult to clean out inside the waste liquid tank. Utility Model Content

[0004] The utility model provides a waste liquid collecting device capable of preventing backflow, aiming to solve the problem that a waste liquid inlet pipe needs to be frequently disassembled.

[0005] The utility model is implemented as follows: a waste liquid collection device capable of preventing backflow comprises a waste liquid tank, a liquid inlet pipe is connected to the middle of the top of the waste liquid tank, a foam floating board which can be vertically lifted and lowered is arranged inside the waste liquid tank, a position sensor is installed on the top of the foam floating board, an anti-backflow mechanism is arranged on the top wall of the waste liquid tank, the anti-backflow mechanism comprises a fixed plate, the fixed plate is fixedly connected to the top wall of the waste liquid tank, a liquid inlet is arranged on the inner side of the fixed plate, a plurality of rotatable intercepting blades are arranged on the inner side of the liquid inlet; a filter is detachably installed on the inner side of the liquid inlet pipe.

[0006] Preferably, the top wall of the waste liquid tank is symmetrically provided with limiting holes, the inner side of the limiting holes vertically passes through the limiting columns, the foam floating plate is fixedly connected to the bottom wall of the limiting columns, a fixing ring is fixedly connected to the periphery of the liquid inlet, a plurality of side walls of the cut-off blades are connected to a plurality of pull rods, the bottom wall of the fixing plate is rotatably connected to a driven wheel, the end of the pull rod away from the cut-off blade is connected to the surface of the driven wheel, the side of the cut-off blade away from the pull rod is rotatably connected to the fixing ring, a motor is installed on the side of the top wall of the waste liquid tank close to the liquid inlet pipe, a driving wheel is connected to the output end of the motor, the driving wheel and the driven wheel are meshed with each other, and the motor is electrically connected to the position sensor.

[0007] Preferably, an arc-shaped groove is opened on the inner side of the driven wheel, a sliding column is slidably connected to the inner side of the arc-shaped groove, and the sliding column is fixedly connected to the bottom wall of the fixing plate.

[0008] Preferably, sleeve blocks are fixedly connected to the top wall of the filter screen on all four sides, and the sleeve blocks are sleeved on the side walls of the liquid inlet pipe.

[0009] Preferably, a drain pipe is connected to the lower part of one side of the waste liquid tank, and a solenoid valve is embedded and installed inside the drain pipe.

[0010] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0011] Through the mutual coordination of the foam floating plate, position sensor, fixed plate, intercepting blade, limit column, fixing ring, pull rod, driven wheel, arc groove, motor, driving wheel and sliding column, the liquid collection position can be sensed by position, so as to control the closing action of the intercepting blade, so as to achieve the purpose of preventing the waste liquid from flowing back. Automatic sensing and automatic closing make the operation more intelligent, and improve the working efficiency of the device; secondly, through the mutual coordination of the filter screen and the sleeve block, the impurities in the waste liquid can be filtered at the same time as the waste liquid enters, so that the impurities can be cleaned up at a later stage, so as to avoid the impurities entering the waste liquid tank and then causing blockage inside the discharge pipe due to the impurities when being discharged, thereby maintaining the waste liquid collection effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the backflow prevention mechanism of the utility model;

[0015] Figure 4 It is a schematic diagram of the connection structure between the liquid inlet pipe and the filter screen of the utility model.

[0016] In the figure: 1, waste liquid tank; 101, liquid inlet pipe; 102, liquid discharge pipe; 2, foam floating plate; 201, position sensor; 3, fixed plate; 4, intercepting blade; 5, filter screen; 501, sleeve block; 6, limit column; 7, fixing ring; 8, pull rod; 9, driven wheel; 901, arc groove; 10, motor; 11, driving wheel; 12, sliding column. DETAILED DESCRIPTION

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0018] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] The utility model embodiment provides a waste liquid collection device capable of preventing backflow, such as Figure 1-4 As shown, it includes a waste liquid tank 1, a liquid inlet pipe 101 is connected to the middle of the top of the waste liquid tank 1, a foam floating board 2 that can be lifted and lowered vertically is provided inside the waste liquid tank 1, a position sensor 201 is installed on the top of the foam floating board 2, an anti-backflow mechanism is provided on the inner top wall of the waste liquid tank 1, the anti-backflow mechanism includes a fixed plate 3, the fixed plate 3 is fixedly connected to the inner top wall of the waste liquid tank 1, a liquid inlet is provided on the inner side of the fixed plate 3, and a plurality of rotatable intercepting blades 4 are provided on the inner side of the liquid inlet; a filter screen 5 is detachably installed on the inner side of the liquid inlet pipe 101.

[0020] It should be noted that, since the waste liquid inlet pipe needs to be disassembled before the foam floating plate is returned to its position, the operation process is relatively cumbersome; secondly, the waste liquid inlet pipe will enter the interior of the waste liquid tank together with impurities when the liquid is inletted, and the impurities are not easy to be cleaned out inside the waste liquid tank. In this solution, through the mutual coordination between the foam floating plate 2, the position sensor 201, the fixed plate 3, the intercepting blade 4, the limit column 6, the fixed ring 7, the pull rod 8, the driven wheel 9, the arc groove 901, the motor 10, the driving wheel 11 and the sliding column 12, the liquid collection position can be sensed by the position, so as to control the intercepting blade 4 to close, so as to achieve the purpose of preventing the waste liquid from flowing back, automatically sensing, automatically closing, and more intelligent operation, which improves the working efficiency of the device; secondly, through the mutual coordination between the filter screen 5 and the sleeve block 501, the impurities in the waste liquid can be filtered at the same time as the waste liquid enters, so that the impurities can be cleaned up later, so as to avoid the impurities entering the waste liquid tank 1 and then being discharged. The impurities will cause the blockage of the discharge pipe 102, thereby maintaining the collection effect of the device on the waste liquid.

[0021] Specifically, in this embodiment, the scheme mainly includes a waste liquid tank 1, a liquid inlet pipe 101 is connected to the middle of the top of the waste liquid tank 1, a foam floating board 2 that can be vertically lifted and lowered is provided inside the waste liquid tank 1, a position sensor 201 is installed on the top of the foam floating board 2, and an anti-backflow mechanism is provided on the inner top wall of the waste liquid tank 1. The anti-backflow mechanism includes a fixed plate 3, and the fixed plate 3 is fixedly connected to the inner top wall of the waste liquid tank 1. A liquid inlet is provided on the inner side of the fixed plate 3, and a plurality of rotatable intercepting blades 4 are provided on the inner side of the liquid inlet; a filter screen 5 is detachably installed on the inner side of the liquid inlet pipe 101.

[0022] In a further preferred embodiment of the present invention, Figure 1 and Figure 2 As shown, the top wall of the waste liquid tank 1 is symmetrically provided with limit holes, and the inner side of the limit holes vertically passes through the limit columns 6, the foam floating plate 2 is fixedly connected to the bottom wall of the limit columns 6, and a fixing ring 7 is fixedly connected to the periphery of the liquid inlet, and a plurality of pull rods 8 are connected to the side walls of the plurality of intercepting blades 4, and a driven wheel 9 is rotatably connected to the bottom wall of the fixing plate 3, and one end of the pull rod 8 away from the intercepting blade 4 is connected to the surface of the driven wheel 9, and the side of the intercepting blade 4 away from the pull rod 8 is rotatably connected to the fixing ring 7, and a motor 10 is installed on the side of the top wall of the waste liquid tank 1 close to the liquid inlet pipe 101, and a driving wheel 11 is connected to the output end of the motor 10, and the driving wheel 11 and the driven wheel 9 are meshed with each other, and the motor 10 is electrically connected to the position sensor 201.

[0023] In this embodiment, when waste liquid enters the waste liquid tank 1 through the liquid inlet pipe 101, the foam floating plate 2 is lifted upward due to the gradual rise of the waste liquid, and the limiting column 6 also moves upward inside the limiting hole. When the position sensor 201 moves to the set distance from the fixed plate 3, a signal is sent to control the starting motor 10 to drive the driving wheel 11 to rotate. The driving wheel 11 is engaged with the driven wheel 9 to drive it to rotate. The driven wheel 9 drives multiple intercepting blades 4 to rotate. The intercepting blades 4 are able to move closer to each other on the inside of the liquid inlet due to the rotational connection with the fixed ring 7 until the liquid inlet is closed, thereby preventing the waste liquid from flowing back. Turning on the electric The magnetic valve allows the waste liquid in the waste liquid tank 1 to be discharged through the drain pipe 102. When the waste liquid in the waste liquid tank 1 is gradually discharged outward, the foam floating plate 2 will drop as the water level drops, and the limit column 6 will also move downward on the inner side of the limit hole, so that the foam floating plate 2 returns to its original position. When the position sensor 201 is away from the fixed plate 3, the motor 10 will start in the reverse direction to drive the driving wheel 11 to rotate in the reverse direction, and the driving wheel 11 drives the driven wheel 9 to rotate in the reverse direction. The driven wheel 9 drives multiple intercepting blades 4 to rotate, so that the intercepting blades 4 rotate to open the liquid inlet, and subsequent waste liquid can continue to enter the interior of the waste liquid tank 1 from the liquid inlet pipe 101 for collection.

[0024] In a further preferred embodiment of the present invention, Figure 3 As shown, an arc groove 901 is opened inside the driven wheel 9 , and a sliding column 12 is slidably connected inside the arc groove 901 , and the sliding column 12 is fixedly connected to the bottom wall of the fixing plate 3 .

[0025] In this embodiment, when the driven wheel 9 rotates, due to the limitation of the sliding column 12 and the arc groove 901, the driven wheel 9 always rotates around the center of the fixed plate 3 to maintain the stability of rotation.

[0026] In a further preferred embodiment of the present invention, Figure 4 As shown, sleeve blocks 501 are fixedly connected to the four sides of the top wall of the filter screen 5 , and the sleeve blocks 501 are sleeved on the side walls of the liquid inlet pipe 101 .

[0027] In this embodiment, while the waste liquid is being collected, the filter screen 5 is placed on the inner side of the liquid inlet pipe 101, and a plurality of sleeve blocks 501 are sleeved on the side wall of the liquid inlet pipe 101, so that the installation of the filter screen 5 is stable. Impurities in the waste liquid can be filtered out by the filter screen 5, thereby reducing the impurities entering the waste liquid tank 1. The sleeve block 501 is lifted upward to make the filter screen 5 leave the interior of the liquid inlet pipe 101, so that it can be disassembled, and the impurities on it can be cleaned and installed again for use.

[0028] In a further preferred embodiment of the present invention, Figure 1 As shown, a drain pipe 102 is connected to the lower part of one side of the waste liquid tank 1, and a solenoid valve is embedded and installed inside the drain pipe 102.

[0029] In this embodiment, the collected waste liquid can be discharged by opening the solenoid valve, and the waste liquid can continue to be collected by closing the solenoid valve.

[0030] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0031] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0032] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0033] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A waste liquid collection device capable of preventing backflow, characterized in that: The invention comprises a waste liquid tank (1), wherein a liquid inlet pipe (101) is connected to the middle of the top of the waste liquid tank (1), a foam floating board (2) which can be lifted and lowered vertically is arranged inside the waste liquid tank (1), a position sensor (201) is installed on the top of the foam floating board (2), an anti-backflow mechanism is arranged on the inner top wall of the waste liquid tank (1), the anti-backflow mechanism comprises a fixing plate (3), the fixing plate (3) is fixedly connected to the inner top wall of the waste liquid tank (1), a liquid inlet is arranged on the inner side of the fixing plate (3), and a plurality of rotatable intercepting blades (4) are arranged on the inner side of the liquid inlet; and a filter screen (5) is detachably installed on the inner side of the liquid inlet pipe (101).

2. A waste liquid collection device capable of preventing backflow as claimed in claim 1, characterized in that: The waste liquid tank (1) has symmetrically arranged limit holes on its top wall, the limit holes having a limit column (6) passing vertically through the inner side of the limit holes, the foam floating plate (2) being fixedly connected to the bottom wall of the limit column (6), a fixing ring (7) being fixedly connected to the periphery of the liquid inlet, a plurality of pull rods (8) being connected to the side walls of the plurality of intercepting blades (4), a bottom wall of the fixing plate (3) being rotatably connected to a driven wheel (9), one end of the pull rod (8) away from the intercepting blade (4) being connected to the surface of the driven wheel (9), and a side of the intercepting blade (4) away from the pull rod (8) being rotatably connected to the fixing ring (7), a motor (10) being installed on a side of the waste liquid tank (1) top wall close to the liquid inlet pipe (101), a driving wheel (11) being connected to the output end of the motor (10), the driving wheel (11) being meshed with the driven wheel (9), and the motor (10) being electrically connected to the position sensor (201).

3. A waste liquid collection device capable of preventing backflow as claimed in claim 2, characterized in that: An arc-shaped groove (901) is provided on the inner side of the driven wheel (9), a sliding column (12) is slidably connected to the inner side of the arc-shaped groove (901), and the sliding column (12) is fixedly connected to the bottom wall of the fixed plate (3).

4. A waste liquid collection device capable of preventing backflow as claimed in claim 3, characterized in that: The top wall of the filter screen (5) is fixedly connected with sleeve blocks (501) on all sides, and the sleeve blocks (501) are sleeved on the side walls of the liquid inlet pipe (101).

5. A waste liquid collection device capable of preventing backflow as claimed in claim 4, characterized in that: A drainage pipe (102) is connected to the lower part of one side of the waste liquid tank (1), and a solenoid valve is embedded and installed inside the drainage pipe (102).

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