CN220249107U - Drainage device - Google Patents

Abstract

The utility model relates to the technical field of drainers, and discloses a drainer, which comprises an upper shell and a lower shell, wherein the upper shell is in threaded connection with the lower shell, a water inlet is formed in the top of the upper shell, a water outlet is formed in the outer side of the lower shell, a filtering mechanism for filtering water is arranged in the upper shell, a floating ball is arranged in the lower shell, a plurality of fixing seats are fixedly connected to the inner wall of the bottom of the lower shell, a connecting hole is formed in the upper surface of one fixing seat, the connecting hole is communicated with the water outlet, and a silica gel plug is fixedly connected in the connecting hole. The utility model can not only improve the action part and the sealing part of the drainer, thereby greatly reducing the failure rate of the drainer, but also enable the silica gel spiral sheet to be used in any narrow space, thereby being applicable to products with different specifications, improving the application range, being more convenient for maintaining the drainer and improving the convenience for maintaining the drainer.

Description

Drainage device

Technical Field

The utility model relates to the technical field of drainers, in particular to a drainer.

Background

The drainer is generally applied to equipment such as a gas storage tank, a large-scale cold dryer, a precise filter, a compression heat regeneration dryer and the like, and is used for draining redundant wastewater in the running process of the equipment.

Through searching, the Chinese patent with the publication number of CN207848563U discloses a mechanical drainer, and the pure mechanical drainer can not discharge air in the drainage process, can realize automatic drainage, can work even if impurities are contained in water, but still has the following defects, the floating ball of the existing drainer generally completes the drainage water shutoff function through a mechanical lever, and the failure rate is higher.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a drainer, which mainly solves the problems that the floating ball of the prior drainer generally completes the function of draining and blocking water through a mechanical lever and has higher failure rate.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a drainer, includes casing and lower casing, go up casing and lower casing threaded connection, the water inlet has been seted up at the top of going up the casing, the outlet has been seted up in the outside of casing down, upward be equipped with in the casing and carry out filterable filter mechanism to water, be equipped with the floater in the casing down, the bottom inner wall fixedly connected with of casing a plurality of fixing bases down, one of them the connecting hole has been seted up to the upper surface of fixing base, and the connecting hole is linked together with the outlet, fixedly connected with plug in the connecting hole, seted up the through-hole in the plug, be equipped with elastomeric element between floater and the fixing base.

Further, the elastic component includes the silica gel flight, the mounting hole has been seted up to the upper surface of silica gel flight, the bottom fixedly connected with connector of floater, and the connector passes mounting hole and silica gel flight joint, silica gel stopper and silica gel flight joint.

On the basis of the scheme, the elastic component comprises a plurality of guide rods, the guide rods are uniformly fixed on the outer side of the floating ball, the guide rods are fixedly connected with a first pressing pad, the silica gel plug is clamped with the first pressing pad, the guide rods are respectively and slidably connected with the fixing seats, tension springs are arranged on the outer sides of the guide rods, and two ends of the tension springs are respectively fixed with the fixing seats and the guide rods.

As a still further scheme of the utility model, the elastic component comprises two elastic ropes, the two elastic ropes are fixed with the floating ball, the bottom of the floating ball is fixedly connected with a second pressing pad, and the silica gel plug is clamped with the second pressing pad.

Further, the filtering mechanism comprises a spherical filter plate, the spherical filter plate is fixed in the upper shell, a plurality of filter holes are formed in the upper surface of the spherical filter plate, a sewage draining groove is formed in the upper surface of the spherical filter plate, and a sewage draining outlet is formed in the outer side of the upper shell.

On the basis of the scheme, the outside fixedly connected with block terminal of last casing, fixedly connected with electrical apparatus module mounting panel in the block terminal, one side of electrical apparatus module mounting panel is equipped with communication module and treater, one side of lower casing is equipped with liquid level alarm, and liquid level alarm, treater and communication module electric connection, the outside of lower casing is equipped with the liquid level ware.

As a still further proposal of the utility model, the floating ball comprises two spherical shells, and the inner walls of the two spherical shells are fixedly connected with a supporting frame.

Further, the bottom inner wall fixedly connected with reference column of inferior valve, the jack has been seted up at the top of reference column, and the connector is pegged graft with the jack.

(III) beneficial effects

Compared with the prior art, the utility model provides a drainer, which has the following beneficial effects:

1. through the setting of elastic component, adopt silica gel as elastic component's material, replace traditional metal component with silica gel, improve the action position and the sealing position of drainer to greatly reduced the fault rate of drainer.

2. Through the setting of silica gel flight, use the silica gel flight to seal, can make the silica gel flight use in any narrow and small space to can make it apply to the product of different specifications, improve application scope.

3. Through the setting of filtering mechanism, set up spherical filter plate in last casing and filter the water that gets into, through oversized filtration appearance chamber, prolonged the maintenance cycle of drainer, through the drain, it is more convenient to the maintenance of drainer that the messenger has improved the convenience that the drainer was maintained simultaneously.

4. Through the calculation to buoyancy, gravity, pressure and drainage suction, guarantee to keep having partial liquid seal to seal the outlet all the time in the drainer, reach zero consumption gas function, greatly reduced the fund cost of enterprise, improved the market share of enterprise.

Drawings

FIG. 1 is a schematic view showing a front perspective structure of an embodiment 1 of a drain according to the present utility model;

FIG. 2 is a schematic view showing a rear perspective structure of an embodiment 1 of the drain according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a water drain according to an embodiment 1 of the present utility model;

fig. 4 is a schematic view showing an internal structure of an embodiment 1 of a drainage device according to the present utility model;

FIG. 5 is an enlarged schematic view of a floating ball of an embodiment 1 of a drain according to the present utility model;

FIG. 6 is a schematic diagram showing an exploded structure of a floating ball of an embodiment 1 of a drain according to the present utility model;

FIG. 7 is a schematic view showing a partially sectional structure of an embodiment 1 of a drain according to the present utility model;

FIG. 8 is a schematic view showing a partially enlarged structure of an embodiment 1 of a drain according to the present utility model;

FIG. 9 is a schematic cross-sectional view of a silica gel plug of example 1 of a drain according to the present utility model;

FIG. 10 is a schematic view showing a partially enlarged structure of an embodiment 2 of a drain according to the present utility model;

fig. 11 is a schematic view showing a partially enlarged structure of a drainer according to embodiment 3 of the utility model.

In the figure: 1. an upper housing; 2. a liquid level device; 3. a lower housing; 4. a water inlet; 5. a sewage outlet; 6. a water outlet; 7. a distribution box; 8. liquid level alarm [ LKD-WL ]; 9. a communication module; 10. a processor; 11. an electrical module mounting plate; 12. filtering holes; 13. a spherical filter plate; 14. a floating ball; 15. a sewage draining groove; 16. a spherical shell; 17. a connector; 18. a supporting frame; 19. a fixing seat; 20. a silica gel spiral sheet; 21. positioning columns; 22. a connection hole; 23. a silica gel plug; 24. a mounting hole; 25. a through hole; 26. a first pressing pad; 27. a guide rod; 28. a tension spring; 29. a second pressing pad; 30. an elastic rope.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-9, a drainer comprises an upper housing 1 and a lower housing 3, wherein the upper housing 1 and the lower housing 3 are in threaded connection, a water inlet 4 is formed at the top of the upper housing 1, a water outlet 6 is formed at the outer side of the lower housing 3, a filtering mechanism for filtering water is arranged in the upper housing 1, a floating ball 14 is arranged in the lower housing 3, a plurality of fixing seats 19 are welded on the inner wall of the bottom of the lower housing 3, a connecting hole 22 is formed on the upper surface of one fixing seat 19, the connecting hole 22 is communicated with the water outlet 6, a silica gel plug 23 is adhered in the connecting hole 22, a through hole 25 is formed in the silica gel plug 23, an elastic component is arranged between the floating ball 14 and the fixing seats 19, condensate is added into the drainer through the water inlet 4, at this time, the filtering mechanism can filter impurities in the condensate, meanwhile, the condensate can flow into the lower shell 3 and is accumulated in the lower shell 3, along with the continuous increase of the condensate in the lower shell 3, when the buoyancy of the floating ball 14 overcomes the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves upwards along with the liquid level, the elastic part does not seal the water outlet 6 any more, the water outlet 6 is opened, the drainer starts to drain water, the water level after drain water is reduced, when the buoyancy is smaller than the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves downwards, so that the elastic part blocks the silica gel plug 23 to close the water outlet 6, and the drainer can continuously and circularly work according to the quantity of the condensate water to realize zero-consumption drain water.

In particular, the elastic component comprises a silica gel spiral sheet 20, a mounting hole 24 is formed on the upper surface of the silica gel spiral sheet 20, a connector 17 is welded at the bottom of a floating ball 14, the connector 17 passes through the mounting hole 24 and is clamped with the silica gel spiral sheet 20, a silica gel plug 23 is clamped with the silica gel spiral sheet 20, the floating ball 14 moves upwards along with the liquid level, the floating ball 14 drives the connector 17 to move, the connector 17 pulls the silica gel spiral sheet 20 to move upwards in a spiral manner, so that the silica gel spiral sheet 20 and the silica gel plug 23 are separated, a water outlet 6 is opened, the filtering mechanism comprises a spherical filter plate 13, the spherical filter plate 13 is fixed in an upper shell 1, a plurality of filter holes 12 are formed on the upper surface of the spherical filter plate 13, a sewage drain groove 15 is formed on the upper surface of the spherical filter plate 13, a sewage drain 5 is formed on the outer side of the upper shell 1, condensate entering the drainer can filter impurities contained in the condensate through the filter holes 12 on the spherical filter plate 13, the filtered impurities can slide into the sewage tank 15 under the action of the spherical filter plate 13 and are accumulated in the sewage tank 15, when the impurities are required to be cleaned, the sewage outlet 5 is opened, the impurities in the sewage tank 15 are cleaned, the distribution box 7 is fixed on the outer side of the upper shell 1 through bolts, the electric appliance module mounting plate 11 is fixed in the distribution box 7 through bolts, the communication module 9 and the processor 10 are arranged on one side of the electric appliance module mounting plate 11, the liquid level alarm 8 is arranged on one side of the lower shell 3, the model of the liquid level alarm 8 is LKD-WL, the model of the communication module 9 is RS485, the model of the processor 10 is ARM9TDMI, the liquid level alarm 8, the processor 10 and the communication module 9 are electrically connected, when the liquid level alarm 8 senses that the liquid level is lower, signals are sent to the processor 10 at the moment, the processor 10 transmits the processed signal to the communication module 9, the communication module 9 gives an alarm to remind workers, the outer side of the lower shell 3 is provided with the liquid level device 2, the floating ball 14 comprises two spherical shells 16, the inner walls of the two spherical shells 16 are welded with a supporting frame 18, the inner wall of the bottom of the lower shell 3 is fixedly provided with a positioning column 21 through bolts, the top of the positioning column 21 is provided with a jack, and the connector 17 is spliced with the jack.

The working principle of the embodiment is as follows: during the use, add like the condensate in to the drainer through water inlet 4, the condensate that enters into the drainer can filter the impurity that contains in the condensate through the filtration pore 12 on the spherical filter plate 13, the impurity that filters out can slide down in to drain 15 under the effect of spherical filter plate 13, pile up in drain 15, the condensate can flow down in the casing 3 simultaneously, and pile up in lower casing 3, along with the continuous increase of condensate in lower casing 3, the buoyancy of floater 14 overcomes the pressure of system and the gravity of floater 14, floater 14 follows the liquid level and upwards moves, floater 14 can drive connector 17 and remove, connector 17 can stimulate silica gel flight 20 and carry out the heliciform and upwards move, thereby make silica gel flight 20 and silica gel plug 23 break away from, make outlet 6 open, the drainer begins to drain, the water level reduces after the drainage, when buoyancy is less than the pressure of system and the gravity of floater 14, thereby make silica gel flight 20 live silica gel plug 23, close 6, thereby can realize according to the continuous circulation work of condensate water volume, realize zero consumption, when need to open impurity 5 to clear up drain 15.

Example 2

Referring to fig. 10, a drainer includes an upper housing 1 and a lower housing 3, the upper housing 1 and the lower housing 3 are in threaded connection, a water inlet 4 is provided at the top of the upper housing 1, a water outlet 6 is provided at the outer side of the lower housing 3, a filtering mechanism for filtering water is provided in the upper housing 1, a floating ball 14 is provided in the lower housing 3, a plurality of fixing seats 19 are welded on the inner wall of the bottom of the lower housing 3, a connecting hole 22 is provided on the upper surface of one of the fixing seats 19, the connecting hole 22 is communicated with the water outlet 6, a silica gel plug 23 is adhered in the connecting hole 22, a through hole 25 is provided in the silica gel plug 23, an elastic member is provided between the floating ball 14 and the fixing seats 19, when the pressure of the system and the gravity of the floating ball 14 are overcome by the buoyancy of the floating ball 14 continuously increasing in the lower housing 3, the floating ball 14 moves upward along with the liquid level, and the elastic member does not seal the water outlet 6, the water outlet 6 is opened, the water outlet 6 is reduced, when the buoyancy is smaller than the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves downward, the elastic member blocks the silicon plug 23, and the water outlet 6 is closed, and the water is thereby realizing water drainage without water drainage according to the water drainage zero consumption.

In particular, the elastic component comprises a plurality of guide rods 27, the guide rods 27 are uniformly fixed on the outer side of the floating ball 14, the same pressing pad I26 is adhered between the guide rods 27, the silica gel plug 23 is clamped with the pressing pad I26, the guide rods 27 are respectively connected with the fixing seats 19 in a sliding manner, tension springs 28 are respectively arranged on the outer sides of the guide rods 27, two ends of the tension springs 28 are respectively fixed with the fixing seats 19 and the guide rods 27, the floating ball 14 moves upwards along with the liquid level, the guide rods 27 are driven by the floating ball 14 to move and stretch the tension springs 28, the connector 17 drives the pressing pad I26 to move in a screwing manner, so that the pressing pad I26 is separated from the silica gel plug 23, the water outlet 6 is opened, the water level of the water outlet is started to be discharged, when the buoyancy is smaller than the pressure of a system and the gravity of the floating ball 14, the floating ball 14 moves downwards under the action of the tension springs 28, so that the pressing pad I26 plugs the silica gel plug 23, closing the water outlet 6, wherein the filtering mechanism comprises a spherical filter plate 13, the spherical filter plate 13 is fixed in the upper shell 1, a plurality of filter holes 12 are formed in the upper surface of the spherical filter plate 13, a drain groove 15 is formed in the upper surface of the spherical filter plate 13, a drain outlet 5 is formed in the outer side of the upper shell 1, condensate entering into the drainer can filter impurities contained in the condensate through the filter holes 12 on the spherical filter plate 13, the filtered impurities can slide down into the drain groove 15 under the action of the spherical filter plate 13 and accumulate in the drain groove 15, when the impurities are required to be cleaned, the drain outlet 5 is opened, the impurities in the drain groove 15 are cleaned out, the distribution box 7 is fixed on the outer side of the upper shell 1 through bolts, an electric appliance module mounting plate 11 is fixed in the distribution box 7 through bolts, one side of the electric appliance module mounting plate 11 is provided with a communication module 9 and a processor 10, one side of lower casing 3 is equipped with liquid level alarm 8, liquid level alarm 8's model is LKD-WL, communication module 9's model is RS485, processor 10's model is ARM9TDMI, and liquid level alarm 8, processor 10 and communication module 9 electric connection, when liquid level alarm 8 experienced the liquid level lower, just can send the signal for processor 10 this moment, processor 10 gives communication module 9 with the signal transmission after handling, communication module 9 can send the alarm, remind the staff, lower casing 3's outside is equipped with liquid level gauge 2, floater 14 includes two spherical shells 16, the inner wall of two spherical shells 16 has all welded strut 18, lower casing 3's bottom inner wall is through the bolt fastening reference column 21, the jack has been seted up at the top of reference column 21, and connector 17 and jack grafting.

The working principle of the embodiment is as follows: when in use, with the continuous increase of condensed liquid in the lower shell 3, when the buoyancy of the floating ball 14 overcomes the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves upwards along with the liquid level, the floating ball 14 can drive the guide rod 27 to move and stretch the tension spring 28, the connector 17 can drive the first pressing pad 26 to move spirally, so that the first pressing pad 26 is separated from the silica gel plug 23, the water outlet 6 is opened, the drainer starts to drain water, the water level after the drainage is reduced, when the buoyancy is smaller than the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves downwards under the action of the tension spring 28, so that the first pressing pad 26 blocks the silica gel plug 23, the water outlet 6 is closed, and the drainer can continuously and circularly work according to the quantity of condensed water, thereby realizing zero-consumption drainage.

Example 3

Referring to fig. 11, a drainer includes an upper housing 1 and a lower housing 3, the upper housing 1 and the lower housing 3 are in threaded connection, a water inlet 4 is provided at the top of the upper housing 1, a water outlet 6 is provided at the outer side of the lower housing 3, a filtering mechanism for filtering water is provided in the upper housing 1, a floating ball 14 is provided in the lower housing 3, a plurality of fixing seats 19 are welded on the inner wall of the bottom of the lower housing 3, a connecting hole 22 is provided on the upper surface of one of the fixing seats 19, the connecting hole 22 is communicated with the water outlet 6, a silica gel plug 23 is adhered in the connecting hole 22, a through hole 25 is provided in the silica gel plug 23, an elastic member is provided between the floating ball 14 and the fixing seats 19, when the buoyancy of the floating ball 14 overcomes the pressure of the system and the gravity of the floating ball 14 continuously increasing in the lower housing 3, the floating ball 14 moves upward along with the liquid level, and the elastic member does not seal the water outlet 6, the water outlet 6 is opened, the water outlet 6 is started, the water level decreases, when the buoyancy is smaller than the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves downward, the elastic member blocks the silicon plug 23, and the water outlet 6 is closed, and the water is thereby realizing water drainage without water drainage loss according to the water drainage.

In particular, the elastic component comprises a plurality of guide rods 27, the guide rods 27 are uniformly fixed on the outer side of the floating ball 14, the same first pressing pad 26 is adhered between the guide rods 27, the silica gel plug 23 is clamped with the first pressing pad 26, the guide rods 27 are respectively connected with the fixed seats 19 in a sliding manner, tension springs 28 are respectively arranged on the outer sides of the guide rods 27, two ends of the tension springs 28 are respectively fixed with the fixed seats 19 and the guide rods 27, the floating ball 14 moves upwards along with the liquid level, the floating ball 14 drives the second pressing pad 29 to move and stretches the elastic rope 30, so that the first pressing pad 26 is separated from the silica gel plug 23, the water outlet 6 is opened, the water level of the water outlet is reduced after the water outlet begins to drain, when the buoyancy is smaller than the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves downwards under the action of the elastic rope 30, so that the second pressing pad 29 blocks the silica gel plug 23 to close the water outlet 6, the filtering mechanism comprises a spherical filter plate 13, the spherical filter plate 13 is fixed in an upper shell 1, a plurality of filter holes 12 are formed in the upper surface of the spherical filter plate 13, a drain tank 15 is formed in the upper surface of the spherical filter plate 13, a drain outlet 5 is formed in the outer side of the upper shell 1, condensate entering into a drainer filters impurities contained in the condensate through the filter holes 12 on the spherical filter plate 13, the filtered impurities can slide down into the drain tank 15 under the action of the spherical filter plate 13 and are accumulated in the drain tank 15, when the impurities are required to be cleaned, the drain outlet 5 is opened to clean the impurities in the drain tank 15, an electric appliance module mounting plate 11 is fixed in the electric appliance module mounting plate 7 through bolts, a communication module 9 and a processor 10 are arranged on one side of the electric appliance module mounting plate 11, a liquid level alarm 8 is arranged on one side of a lower shell 3, the model of liquid level alarm 8 is LKD-WL, the model of communication module 9 is RS485, the model of treater 10 is ARM9TDMI, and liquid level alarm 8, treater 10 and communication module 9 electric connection, when liquid level alarm 8 experienced the liquid level lower, can send the signal to treater 10 this moment, treater 10 gives communication module 9 with the signal transmission after handling, communication module 9 can send the alarm, remind the staff, the outside of lower casing 3 is equipped with liquid level gauge 2, floater 14 includes two spherical shells 16, the inner wall of two spherical shells 16 has all welded strut 18, the bottom inner wall of lower casing 3 is equipped with reference column 21 through the bolt fastening, the jack has been seted up at the top of reference column 21, and connector 17 and jack grafting.

The working principle of the embodiment is as follows: when in use, with the continuous increase of condensed liquid in the lower shell 3, when the buoyancy of the floating ball 14 overcomes the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves upwards along with the liquid level, the floating ball 14 drives the second pressing pad 29 to move and stretches the elastic rope 30, so that the first pressing pad 26 is separated from the silica gel plug 23, the water outlet 6 is opened, the drainer starts to drain water, the water level after draining is reduced, when the buoyancy is smaller than the pressure of the system and the gravity of the floating ball 14, the floating ball 14 moves downwards under the action of the elastic rope 30, so that the second pressing pad 29 blocks the silica gel plug 23 to close the water outlet 6, and the drainer can continuously and circularly work according to the quantity of the condensed water to realize zero-consumption draining.

The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.

In this description, it should be noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a drainer, includes casing (1) and inferior valve body (3), a serial communication port, go up casing (1) and inferior valve body (3) threaded connection, water inlet (4) have been seted up at the top of going up casing (1), outlet (6) have been seted up in the outside of inferior valve body (3), be equipped with in going up casing (1) and carry out filterable filter mechanism to water, be equipped with floater (14) in inferior valve body (3), the bottom inner wall fixedly connected with fixing base (19) of inferior valve body (3), one of them connecting hole (22) have been seted up on the upper surface of fixing base (19), and connecting hole (22) are linked together with outlet (6), through-hole (25) have been seted up in connecting hole (22) internal fixation (23), be equipped with elastomeric element between floater (14) and fixing base (19).

2. The drainer according to claim 1, wherein the elastic component comprises a silica gel spiral sheet (20), a mounting hole (24) is formed in the upper surface of the silica gel spiral sheet (20), a connector (17) is fixedly connected to the bottom of the floating ball (14), the connector (17) passes through the mounting hole (24) to be clamped with the silica gel spiral sheet (20), and the silica gel plug (23) is clamped with the silica gel spiral sheet (20).

3. The drainer according to claim 1, wherein the elastic member comprises a plurality of guide rods (27), the guide rods (27) are uniformly fixed on the outer side of the floating ball (14), the guide rods (27) are fixedly connected with a pressing pad (26), the silica gel plug (23) is clamped with the pressing pad (26), the guide rods (27) are respectively connected with the fixing seats (19) in a sliding manner, tension springs (28) are arranged on the outer sides of the guide rods (27), and two ends of the tension springs (28) are respectively fixed with the fixing seats (19) and the guide rods (27).

4. The drainer according to claim 1, wherein the elastic member comprises two elastic ropes (30), the two elastic ropes (30) are both fixed with the floating ball (14), the bottom of the floating ball (14) is fixedly connected with the second pressing pad (29), and the silica gel plug (23) is clamped with the second pressing pad (29).

5. The drainer according to claim 1, wherein the filtering mechanism comprises a spherical filter plate (13), the spherical filter plate (13) is fixed in the upper housing (1), a plurality of filter holes (12) are formed in the upper surface of the spherical filter plate (13), a sewage draining groove (15) is formed in the upper surface of the spherical filter plate (13), and a sewage draining outlet (5) is formed in the outer side of the upper housing (1).

6. The drainer according to claim 5, wherein the outer side of the upper housing (1) is fixedly connected with a distribution box (7), an electrical module mounting plate (11) is fixedly connected in the distribution box (7), one side of the electrical module mounting plate (11) is provided with a communication module (9) and a processor (10), one side of the lower housing (3) is provided with a liquid level alarm (8), and the liquid level alarm (8), the processor (10) and the communication module (9) are electrically connected, and the outer side of the lower housing (3) is provided with the liquid level device (2).

7. A drainer according to claim 1, wherein the float ball (14) comprises two spherical shells (16), and wherein the inner walls of both spherical shells (16) are fixedly connected with a bracket (18).

8. The drainer according to claim 1, wherein the inner wall of the bottom of the lower housing (3) is fixedly connected with a positioning column (21), the top of the positioning column (21) is provided with a jack, and the connector (17) is spliced with the jack.