Biosafety airtight floor drain

Abstract

The utility model relates to the technical field of floor drain design, in particular to a biological safety airtight floor drain which comprises a water pipe, a flow limiting assembly is fixedly connected to the water pipe and comprises a hollow sleeve, the hollow sleeve is fixedly connected to the water pipe, a rubber piston is connected to the hollow sleeve in a sliding mode, and an air conveying pipe is fixedly communicated with the hollow sleeve. By starting the air pump, the rubber piston is pushed out, the effect of controlling the flow rate of waste water is achieved, by arranging the flow limiting assembly, the flow rate of the waste water can be controlled, liquid splashing caused by the too large flow rate of the waste water is prevented, and the possibility of biological sample splashing is effectively reduced; and clothes of workers are avoided, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of floor drain design, in particular to a biological safety closed floor drain. Background Art

[0002] The biosafety closed floor drain is designed to prevent splashing and contamination that may occur when handling biological samples in a laboratory or medical environment. The floor drain must be able to be completely sealed to prevent any liquid or gas from leaking out of the floor drain to ensure the biosafety of the laboratory environment.

[0003] For example, the patent specification of an existing Chinese patent (publication number CN203905148U) discloses a biosafety airtight floor drain, which is pre-buried with a stainless steel three-wing ring sleeve and then overlap-welded with stainless steel plates. It has a strong integrity and is sufficient to ensure strict airtightness requirements.

[0004] However, in the implementation of relevant technologies, it was found that the above-designed biosafety sealed floor drain has the following problems: although the strict airtightness requirements of the floor drain are guaranteed, when the waste liquid is discharged, some liquids have high viscosity, surface tension or volatility, which may increase the risk of liquid splashing. Biological samples are likely to splash, which may contaminate the staff's clothing and cause inconvenience. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a biological safety closed floor drain.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a biological safety closed floor drain, including a water pipe, to which a flow limiting component is fixedly connected; the flow limiting component includes a hollow sleeve, which is fixedly connected to the water pipe, and a rubber piston is slidably connected to the hollow sleeve, and an air pipe is fixedly connected to the hollow sleeve, and an air pump is fixedly connected to the side of the air pipe away from the hollow sleeve.

[0007] As a further description of the above technical solution: the air pump is fixedly connected to the water pipe, and a cleaning component is fixedly connected to the bottom of the water pipe. By providing the cleaning component, it is possible to effectively prevent dirt from accumulating in the water pipe and affecting the drainage of the floor drain.

[0008] As a further description of the above technical solution: the cleaning component includes a cleaning box, the top of the cleaning box is fixedly connected to the water pipe, the bottom of the inner wall of the cleaning box is fixedly connected to a grate, and the grate is fixedly connected to a motor. By arranging a motor on the grate, the motor can drive the electric telescopic rod to rotate, and place the threaded rubber block at the bottom of the water pipe, so that the threaded rubber block can clean the dirt in the water pipe conveniently. During normal drainage, the threaded rubber block can be retracted by the electric telescopic rod to avoid affecting the drainage.

[0009] As a further description of the above technical solution: an electric telescopic rod is fixedly connected to the motor, a threaded rubber block is fixedly connected to the side of the electric telescopic rod away from the motor, the inner wall of the water pipe is arranged as a threaded structure, the threaded rubber block is threadedly connected to the water pipe, and the threaded rubber block is threadedly connected to the water pipe, so that the threaded rubber block can rotate during the rising process in the water pipe to clean up the dirt in the water pipe, and the cleaning effect is better.

[0010] As a further description of the above technical solution: the bottom of the cleaning box is fixedly connected to a diversion bin, and the bottom of the diversion bin is fixedly connected to a drain pipe. By providing the diversion bin, the inner wall of the diversion bin is trapezoidal, which reduces the possibility of sewage splashing.

[0011] As a further description of the above technical solution: a water seepage plate is fixedly connected to the top of the diversion bin, and the water seepage plate on the top of the diversion bin is in contact with the bottom of the grate. The water seepage plate is convenient for installing the motor and threaded rubber blocks, and the grate can block large particles of dirt to prevent them from being blocked in the drain pipe and affecting drainage.

[0012] The utility model has the following beneficial effects:

[0013] The utility model designs a biological safety closed floor drain. First, the floor drain is fixed to the drain outlet as a whole. When discharging biological waste liquid, the air pump is started, the rubber piston is pushed out, the water flow through the water pipe is reduced, and the flow rate becomes slower. The air pump is started again to draw air, the rubber piston is retracted, and the water flow will be accelerated. By setting a limited flow component, the flow rate of the wastewater can be controlled to prevent the liquid from splashing due to excessive flow rate, effectively reducing the possibility of biological sample splashing and avoiding the staff's clothes from splashing. It is more practical.

[0014] The utility model designs a biological safety closed floor drain. By starting a motor and an electric telescopic rod, the electric telescopic rod drives a threaded rubber block to rise. The threaded rubber block removes residues adhered to the inner wall of the water pipe. When draining water, the water flow washes away the residues brought down by the threaded rubber block, and then discharges them through the grate, the diversion chamber and the drain pipe. By providing a cleaning component, the problem of excessive residue accumulation inside the floor drain and affecting drainage can be avoided, and the utility model has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the position of the grate of the utility model;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the current limiting component of the utility model.

[0020] Legend:

[0021] 1. Water pipe; 2. Current limiting component; 21. Hollow sleeve; 22. Air pipe; 23. Air pump; 24. Rubber piston; 3. Cleaning component; 31. Cleaning box; 32. Motor; 33. Electric telescopic rod; 34. Threaded rubber block; 4. Grate; 41. Diversion chamber; 42. Drain pipe. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] Reference Figure 1-5 The utility model provides a biological safety closed floor drain: comprising a water pipe 1, to which a limited flow component 2 is fixedly connected;

[0024] The flow limiting component 2 includes a hollow sleeve 21, which is fixedly connected to the water pipe 1, a rubber piston 24 is slidably connected to the hollow sleeve 21, an air pipe 22 is fixedly connected to the hollow sleeve 21, and an air pump 23 is fixedly connected to the side of the air pipe 22 away from the hollow sleeve 21;

[0025] During the specific implementation, the floor drain is first fixed to the drain outlet as a whole. When discharging biological waste liquid, the air pump 23 is started. The air pump 23 then supplies air to the hollow sleeve 21 through the air pipe 22. The air pressure in the hollow sleeve 21 increases. Under the action of the air pressure, the rubber piston 24 is pushed out. The rubber piston 24 can block a part of the discharged waste liquid, and the water flow through the water pipe 1 is reduced, and the flow rate is slowed down. The air pump 23 is started again. The air pump 23 will extract the air in the hollow sleeve 21. As the air pressure in the hollow sleeve 21 gradually decreases, the rubber piston 24 will be retracted under the action of the air pressure, and the obstruction to the flow of waste water in the water pipe 1 is reduced, and the water flow is accelerated. By setting the limited flow component 2, the waste water flow rate can be controlled, which can effectively prevent waste water from splashing out and contaminating the clothes of the staff, which is more practical.

[0026] Embodiment 2

[0027] Reference Figure 1-5 On the basis of the first embodiment, the cleaning assembly 3 includes a cleaning box 31, the top of the cleaning box 31 is fixedly connected to the water pipe 1, the bottom of the inner wall of the cleaning box 31 is fixedly connected to a grate 4, and the grate 4 is fixedly connected to a motor 32. By arranging the motor 32 on the grate 4, the motor 32 can drive the electric telescopic rod 33 to rotate, and the threaded rubber block 34 is placed at the bottom of the water pipe 1;

[0028] The motor 32 is fixedly connected with an electric telescopic rod 33, and a threaded rubber block 34 is fixedly connected to the side of the electric telescopic rod 33 away from the motor 32. The inner wall of the water pipe 1 is set as a threaded structure, and the threaded rubber block 34 is threadedly connected to the water pipe 1;

[0029] It should be noted that a battery can be connected to the hollow sleeve 21 to supply power to the above-mentioned electrical equipment;

[0030] A guide bin 41 is fixedly connected to the bottom of the cleaning box 31, and a drain pipe 42 is fixedly connected to the bottom of the guide bin 41;

[0031] A water seepage block is fixedly connected to the top of the diversion chamber 41, and the water seepage block on the top of the diversion chamber 41 is in contact with the bottom of the grate 4;

[0032] In specific implementation, on the basis of the first embodiment, during normal drainage, the threaded rubber block can be retracted by the electric telescopic rod 33 to avoid affecting drainage. The threaded rubber block is threadedly connected to the water pipe 1, and the threaded rubber block can rotate during the rising process in the water pipe 1 to clean the dirt in the water pipe 1, and the cleaning effect is better. The diversion bin 41 is provided, and the inner wall of the diversion bin 41 is trapezoidal; the possibility of sewage splashing is reduced, and the motor 32 and the threaded rubber block 34 are convenient to install. The grate 4 can block large particles of dirt to avoid blocking them in the drain pipe 42 and affecting drainage.

[0033] By starting the motor 32, the motor 32 drives the electric telescopic rod 33 to rotate, and the electric telescopic rod 33 is started, and the electric telescopic rod 33 drives the threaded rubber block 34 to rise. The threaded rubber block 34 is threadedly connected to the water pipe 1. Under the action of the motor 32, the threaded rubber block 34 will rotate and rise on the inner wall of the water pipe 1. During this process, the threaded rubber block 34 will remove the residue adhered to the inner wall of the water pipe 1. The motor 32 is started again, so that the threaded rubber block 34 rotates downward on the inner wall of the water pipe 1, so that the threaded rubber block 34 is separated from the water pipe 1. When draining, the water flow will flush away the residue brought by the threaded rubber block 34, and then discharge it through the grate 4, the guide chamber 41 and the drain pipe 42. By providing the cleaning component 3, the problem of excessive accumulation of residues inside the floor drain and affecting drainage can be avoided, and the applicability is strong.

[0034] Working principle:

[0035] When using the utility model, first fix the floor drain as a whole to the drain outlet. When discharging biological waste liquid, start the air pump 23. The air pump 23 then delivers air to the hollow sleeve 21 through the air pipe 22. The air pressure in the hollow sleeve 21 increases. Under the action of the air pressure, the rubber piston 24 is pushed out. The rubber piston 24 can block a part of the discharged waste liquid. The water flow through the water pipe 1 is reduced, and the flow rate is slowed down. Start the air pump 23 again. The air pump 23 will extract the air in the hollow sleeve 21. As the air pressure in the hollow sleeve 21 gradually decreases, the rubber piston 24 will be retracted under the action of the air pressure. The obstruction to the flow of waste water in the water pipe 1 is reduced, and the water flow is accelerated. By setting the limited flow component 2, the flow rate of the waste water can be controlled to prevent the excessive flow rate from causing liquid splashing and contaminating the clothes of the staff.

[0036] By starting the motor 32, the motor 32 electrically drives the electric telescopic rod 33 to rotate, and the electric telescopic rod 33 is started, and the electric telescopic rod 33 drives the threaded rubber block 34 to rise, and the threaded rubber block 34 is threadedly connected to the water pipe 1. Under the action of the motor 32, the threaded rubber block 34 will rotate and rise on the inner wall of the water pipe 1. During this process, the threaded rubber block 34 will remove the residue adhered to the inner wall of the water pipe 1, and the motor 32 will be started again, so that the threaded rubber block 34 will rotate downward on the inner wall of the water pipe 1, so that the threaded rubber block 34 will be separated from the water pipe 1. When draining, the water flow will flush away the residue brought by the threaded rubber block 34, and then discharge it through the grate 4, the guide chamber 41 and the drain pipe 42. By providing the cleaning component 3, the problem of excessive accumulation of residues inside the floor drain and affecting drainage can be avoided, and the utility model has strong applicability. All motors and electric telescopic rods of the utility model have external power supplies.

[0037] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biological safety sealed floor drain, comprising a water pipe (1), characterized in that: The water pipe (1) is fixedly connected to a flow limiting component (2); The flow limiting component (2) comprises a hollow sleeve (21), the hollow sleeve (21) is fixedly connected to the water pipe (1), a rubber piston (24) is slidably connected to the hollow sleeve (21), an air supply pipe (22) is fixedly connected to the hollow sleeve (21), and an air pump (23) is fixedly connected to the side of the air supply pipe (22) away from the hollow sleeve (21).

2. A biological safety sealed floor drain according to claim 1, characterized in that: The air pump (23) is fixedly connected to the water pipe (1), and the bottom of the water pipe (1) is fixedly connected to a cleaning component (3).

3. A biological safety sealed floor drain according to claim 2, characterized in that: The cleaning assembly (3) comprises a cleaning box (31), the top of the cleaning box (31) is fixedly connected to the water pipe (1), the bottom of the inner wall of the cleaning box (31) is fixedly connected to a grate (4), and the grate (4) is fixedly connected to a motor (32).

4. A biological safety sealed floor drain according to claim 3, characterized in that: The motor (32) is fixedly connected to an electric telescopic rod (33), a threaded rubber block (34) is fixedly connected to the side of the electric telescopic rod (33) away from the motor (32), the inner wall of the water pipe (1) is provided with a threaded structure, and the threaded rubber block (34) is threadedly connected to the water pipe (1).

5. The biological safety sealed floor drain according to claim 3, characterized in that: The bottom of the cleaning box (31) is fixedly connected to a flow guide bin (41), and the bottom of the flow guide bin (41) is fixedly connected to a drainage pipe (42).

6. A biological safety sealed floor drain according to claim 5, characterized in that: A water seepage plate is fixedly connected to the top of the guide bin (41), and the water seepage plate on the top of the guide bin (41) is in contact with the bottom of the grate (4).

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