CN111188174A

CN111188174A - Lateral wall blowing type drying wardrobe

Info

Publication number: CN111188174A
Application number: CN202010096707.2A
Authority: CN
Inventors: 宋百姚; 赖大继
Original assignee: Hangzhou Letuto Intelligent Technology Co Ltd
Current assignee: Hangzhou Letuto Intelligent Technology Co Ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-05-22

Abstract

The invention discloses a side wall air-blowing type drying wardrobe which comprises a wardrobe body, wherein the wardrobe body comprises a heater and a drying area, the heater and the drying area are both arranged in the wardrobe body, an air inlet is formed in the side wall of the drying area, an air outlet is also formed in the drying area, the heater is connected with the air inlet and transmits generated heat to the drying area, and the air outlet is communicated with the outside. The clothes drying cabinet has the advantages that clothes washed by customers can be hung in a drying area of a cabinet body of the drying wardrobe, heat (namely hot air) generated by heating of the heater is transmitted to the drying area through the air inlet, water on the clothes is evaporated by the heat to form water vapor, and the water vapor is discharged from the air outlet, so that the clothes drying effect is realized. Because the washed wet clothes still have water drops to drop, the air inlet is creatively arranged on the side wall of the drying area, the water drops directly drop under the drying area, and the hot air enters from the side wall of the drying area, so that the water drops are separated from the air inlet, the water drops can not drop into the air inlet, and the normal conveying of the hot air can not be influenced.

Description

Lateral wall blowing type drying wardrobe

Technical Field

The invention relates to the field of drying wardrobes, in particular to a side wall blowing type drying wardrobe.

Background

Hotels mainly provide accommodation, catering, meeting work and living services for customers, and are essential for people to go on a business trip, go out for a tour or visit relatives and friends. Because the space is limited, most hotels do not set up the balcony, and after customer's lodging hotel, the clothes shoes have not washed the back, can't dry in the short time. Therefore, customers usually do not wash clothes when going out, and need to replace the clothes with a plurality of sets of clothes; or the clothes are dried by an air conditioner, and some clothes are not easy to dry in a short time, which brings inconvenience to customers.

Some customers can directly wash clothes in the guest room and then directly dry the clothes in the room, and water drops drip on the floor, so that the articles in the room can be directly damaged.

Disclosure of Invention

The invention provides a side wall blowing type drying wardrobe which can solve one or more of the problems in the prior art.

The lateral wall formula of blowing stoving wardrobe, including the cabinet body, the cabinet body includes heater and drying zone, and it is internal that the cabinet is all located to heater and drying zone, is equipped with the air intake on the lateral wall of drying zone, still is equipped with the air exit in the drying zone, and the heater is connected with the air intake and transmits the heat of production to drying zone, and the air exit is linked together with the outside.

The clothes drying cabinet has the advantages that clothes washed by customers can be hung in a drying area of a cabinet body of the drying wardrobe, heat (namely hot air) generated by heating of the heater is transmitted to the drying area through the air inlet, water on the clothes is evaporated by the heat to form water vapor, and the water vapor is discharged from the air outlet, so that the clothes drying effect is realized.

Because the washed wet clothes still have water drops to drop, the air inlet is creatively arranged on the side wall of the drying area, the water drops directly drop under the drying area, and the hot air enters from the side wall of the drying area, so that the water drops are separated from the air inlet, the water drops can not drop into the air inlet, and the normal conveying of the hot air can not be influenced.

The drying wardrobe is applied to hotel rooms, the space of the wardrobe can be fully utilized, a dryer does not need to be purchased additionally, the cost is reduced, and the occupied space is small. The installation of the lateral wall blowing type drying wardrobe can be directly carried out when a hotel is decorated, and the original wardrobe can also be modified.

In some embodiments, the air inlets are disposed on the left and right sidewalls of the drying region and/or the rear sidewall of the cabinet, and the ventilation amount of the air inlets is gradually increased along the decrease of the vertical height.

The hot air drying device has the advantages that the hot air density is low, so that the hot air flows upwards, the ventilation quantity of the air inlets is gradually increased along the descending of the vertical height in order to better guarantee the drying effect, for example, more air inlets can be arranged at the bottom of the drying area, and fewer air inlets are arranged at the upper part of the drying area. Or the inner diameter of the air inlet at the bottom is larger, and the inner diameter of the air inlet at the top is smaller. The aim is to enable hot air to enter from the bottom of the drying area as much as possible, so that the hot air gradually dries wet clothes in the rising process.

Meanwhile, because water drops in the clothes drop along the clothes, the bottoms of the clothes are the most difficult and the last to be dried generally, so that hot air enters from the bottom of the drying area as much as possible, the drying speed can be accelerated, and the better drying effect is realized.

In some embodiments, the air inlet has an inner diameter greater than an inner diameter of the air outlet.

The hot air drying device has the advantages that the hot air can be slowly introduced compared with the hot air discharged, so that heat can be present in the drying area as much as possible, unnecessary loss of heat is prevented, and a better drying effect is realized.

In some embodiments, the air conditioner further comprises an air guide pipe, wherein an inlet end of the air guide pipe is connected with the heater, an outlet end of the air guide pipe is connected with the air inlet, the air guide pipe is a bendable pipeline, the air guide pipe is provided with a corrugated structure, the corrugated structure can stretch and retract, and the outer wall of the air guide pipe is wrapped with aluminum foil.

The beneficial effects are that, the guide duct that sets up ripple tubular structure can guarantee that the heat can be smooth to enter into the drying zone in the middle of, and the parcel has the aluminium foil simultaneously after, the thermal giving off that reduces that can be better. The air guide pipe capable of being bent is arranged, so that the actual installation requirement can be better met.

In some embodiments, the cabinet body still includes the storing district, and the storing district is equipped with joint strip with the contact position of cabinet door, is connected with the exhaust pipeline on the air exit, and the exhaust pipeline is linked together with the outside air.

Its beneficial effect is, after setting up the storing district, can keep the original storing function of wardrobe not influenced, has set up joint strip after, the storing district can form good airtight effect with the cabinet door, and the exhaust steam of air exit discharges to outside through the exhaust pipe way in addition to can not let the influence that receives steam in the storing district.

In some embodiments, the heater includes a housing, an electric heating plate and a fan are disposed in the housing, an air outlet is further disposed on the housing, the air outlet is located above the electric heating plate, the fan is located below the electric heating plate, the air outlet is connected to an air guide pipe, a grid plate is disposed at the air outlet, and an air inlet is disposed at the bottom of an outer wall of the housing and opposite to the fan.

The heating device has the beneficial effects that the heating device is simple in structure and easy to process, can be suitable for wardrobes of different specifications and models and shapes, can be transformed into a drying wardrobe by utilizing the wardrobes of hotel rooms, and is high in applicability. The heater occupies a small space, has high heating speed, has little influence on the storage space of the wardrobe and has strong practicability.

On the one hand, the grid plate can prevent that debris from passing through inside the air outlet gets into the casing, strengthens the protection to the structure in the casing. On the other hand, the heated air is mixed again after passing through the grating plates, the fluctuation of the temperature and the flow rate is reduced, the flow direction is also adjusted, and the hot air obtained through the grating plates tends to be more balanced, so that the phenomenon that the temperature and the flow direction of the hot air are too different to cause uneven drying of clothes can be avoided.

The fan is positioned below the electric hot plate. The air blasting treatment is carried out from the lower part of the electric heating plate, the heated air can be driven to flow upwards, the motion rule of the cold air flow is also met, and the energy consumption can be reduced.

Typically, the air inlet is located at the bottom of the housing. In order to ensure smooth gas flow, the bottom of the shell is provided with a support column to prevent the gas inlet from being directly grounded.

In some embodiments, the bottom of the drying area is provided with a drain plate, the drain plate comprises a first plate body, a second plate body and a connecting rod, a drain hole is formed in the first plate body and/or the second plate body, the first plate body and the second plate body are connected through the connecting rod, the heater and the drying area are isolated through the drain plate, the connecting rod is located below the first plate body and the second plate body, connecting holes are formed in the first plate body and the second plate body, the connecting rod can penetrate into the connecting holes to connect the first plate body and the second plate body together, and fastening screws are arranged at two ends of the connecting rod.

Its beneficial effect is, sets up the first plate body and the second plate body that adopt the concatenation formula to can make the wardrobe of different width, can conveniently carry out the mass production, concrete width only need according to need splice can, through the setting of connecting rod, the fastening screw of screwing again, can let inseparabler of first plate body and second plate body concatenation, thereby better realization waterproof effect.

In some embodiments, be the polylith on first plate body and the second plate body, first plate body is equipped with recess or arch, cooperatees through recess and arch between first plate body and the second plate body, all is equipped with the sand grip on first plate body and the second plate body, and the sand grip forms the manger plate strip at the junction of first plate body and second plate body.

The beneficial effects are that, through recess and bellied cooperateing, can let the inseparabler of being connected on first plate body and the second plate body. Meanwhile, after the convex strips are arranged, the water can be prevented from flowing in a turbulent mode better, and the water can flow into the drain holes smoothly.

In some embodiments, a clothes hanging rod and a clothes hanger are arranged at the upper part in the drying area, the clothes hanger is connected to the clothes hanging rod through a fixed hook, the fixed hook comprises a sliding part and a connecting part which are connected, the sliding part is connected with the clothes hanging rod, the sliding part can move along the axial direction of the clothes hanging rod, and the connecting part is connected with the clothes hanger.

The drying wardrobe has the beneficial effects that the drying wardrobe is arranged in a hotel room, and is convenient for passengers to dry clothes in time. This drying wardrobe fixes clothes hanger on hanging the clothing pole through fixed couple to clothes hanger can not take off from hanging the clothing pole at will, and the passenger wants to hang the clothes of drying in the air and can only hang the clothes in drying wardrobe, avoids the passenger to take off clothes hanger and dries in the air the clothes elsewhere, has cultivateed the custom that the passenger used drying wardrobe, also avoids the passenger to hang clothes hanger in disorder and leads to clothes hanger to lose or be difficult to the clearance. It is also possible to prevent water on clothes from dripping onto a carpet or a floor, resulting in damage to the carpet and the floor.

In some embodiments, a drain pipe is connected to the drain hole, and the drain pipe is connected to a preset water receiving box or directly connected to a sewer pipeline.

The water receiving box has the beneficial effects that if the wardrobe of the traditional hotel is modified, the water receiving box can be arranged, so that a cleaner can clean water in the water receiving box at regular intervals every day when a room is cleaned. If the drying wardrobe is arranged when a new wine shop is directly decorated, the water connecting and discharging pipe can be directly connected with a sewer pipeline in a pre-buried mode, so that water can be discharged more conveniently.

Drawings

FIG. 1 is a schematic structural view of a side-wall-blowing drying wardrobe in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of an air duct structure of a side-wall-blowing-type drying wardrobe according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a heater of a side wall blowing type drying wardrobe in accordance with an embodiment of the present invention;

FIG. 4 is a bottom view of a heater for a side wall blowing type drying wardrobe in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a heater of a side wall blowing type drying wardrobe in accordance with an embodiment of the present invention;

FIG. 6 is a schematic structural view of a drain board of a side-wall-blowing drying wardrobe in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of the back side of a drain board of a side wall blowing type drying wardrobe in accordance with an embodiment of the present invention;

FIG. 8 is a disassembled schematic view of a drain board of a side wall blowing type drying wardrobe in accordance with an embodiment of the present invention;

FIG. 9 is an enlarged view of portion A of FIG. 1;

fig. 10 is an enlarged schematic view of a portion B in fig. 6.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 to 10 schematically show a side wall blowing type drying wardrobe according to an embodiment of the present invention. As shown in the figure, lateral wall formula of blowing stoving wardrobe, including the cabinet body 1, the cabinet body 1 includes heater 2 and drying zone 3, and in the cabinet body 1 was all located to heater 2 and drying zone 3, be equipped with air intake 4 on the lateral wall of drying zone 3, still be equipped with air exit 5 in the drying zone 3, heater 2 is connected with air intake 4 and transmits the heat that produces to drying zone 3, and air exit 5 is linked together with the outside.

The clothes after the customer washes can hang in drying area 3 of the cabinet body 1 of drying wardrobe, and the heat that heater 2 heating produced promptly hot-air passes through air intake 4 and transmits drying area 3 as well, and the heat makes the evaporation of water on the clothes form steam, and steam is discharged from air exit 5 as well again to the effect of drying the clothes is realized.

Because the washed wet clothes still have water drops to drop, the air inlet 4 is creatively arranged on the side wall of the drying area 3, the water drops directly drop under the drying area 3, and the hot air enters from the side wall of the drying area 3, so that the water drops are separated from each other, the water drops can not drop into the air inlet 4, and the normal conveying of hot air can not be influenced.

The air inlets 4 are arranged on the left and right side walls of the drying area 3 and/or the rear side wall of the cabinet body 1, and the ventilation volume of the air inlets 4 is gradually increased along the descending of the vertical height.

Because the density of the hot air is smaller, the hot air all goes upwards, so in order to better ensure the drying effect, the ventilation quantity of the air inlets 4 is gradually increased along the descending of the vertical height, for example, a plurality of air inlets 4 can be arranged at the bottom of the drying area 3, and a plurality of air inlets 4 are arranged at the upper part. Or the inner diameter of the bottom air inlet 4 is larger, and the inner diameter of the top air inlet 4 is smaller. The aim is to allow as much hot air as possible to enter from the bottom of the drying zone 3, so that the hot air dries the wet clothes gradually in the process of rising.

Meanwhile, because water drops in the clothes drop along the clothes, the bottoms of the clothes are the most difficult and the last to be dried generally, so that hot air enters from the bottom of the drying area 3 as much as possible, the drying speed can be accelerated, and the better drying effect is realized.

Wherein, the inner diameter of the air inlet 4 is larger than that of the air outlet 5.

That is, the inlet of the hot air is slower than the outlet of the hot air, so that the heat can be present in the drying area 3 as much as possible, the heat is prevented from being lost meaninglessly, and a better drying effect is realized.

Meanwhile, the air-conditioner also comprises an air guide pipe 6, wherein the inlet end 61 of the air guide pipe 6 is connected with the heater 2, the outlet end 62 of the air guide pipe 6 is connected with the air inlet 4, the air guide pipe 6 is a bendable pipeline, the air guide pipe 6 is provided with a corrugated structure 7, the corrugated structure 7 can stretch out and draw back, and the outer wall of the air guide pipe 6 is wrapped with aluminum foil 8.

The air guide pipe 6 with the corrugated structure 7 can ensure that heat can smoothly enter the drying area 3, and the aluminum foil 8 is wrapped on the air guide pipe, so that heat dissipation can be better reduced. The air guide pipe 6 which can be bent is arranged, so that the actual installation requirement can be better met.

The cabinet body 1 still includes storing district 9, and storing district 9 is equipped with joint strip 10 with the contact position of cabinet door, is connected with exhaust duct 11 on the air exit 5, and exhaust duct 11 is linked together with the outside air.

Set up storing district 9 back, can remain the original storing function of wardrobe and be not influenced, set up joint strip 10 back, storing district 9 can form good airtight effect with the cabinet door, and 5 exhaust steam of air exit discharge outside through exhaust pipeline 11 in addition to can not let the influence that receives steam in storing district 9.

The heater 2 includes a casing 12, an electric heating plate 13 and a fan 14 are arranged in the casing 12, an air outlet 15 is further arranged on the casing 12, the air outlet 15 is located above the electric heating plate 13, the fan 14 is located below the electric heating plate 13, the air outlet 15 is connected with an air guide pipe 6, a grid plate 17 is arranged at the air outlet 15, an air inlet 171 is arranged at the bottom of the outer wall of the casing 12, and the air inlet 171 is arranged opposite to the fan 14.

In the invention, the heater 2 has a simple structure, is easy to process, can be suitable for wardrobes of different specifications and models and shapes, can be transformed into a drying wardrobe by utilizing the wardrobes of hotel rooms, and has strong applicability. The heater 2 occupies a small space, has a high heating speed, has little influence on the storage space of the wardrobe and has strong practicability.

On one hand, the grille plate 17 can prevent sundries from entering the interior of the shell 12 through the air outlet 15, and the protection of the structure in the shell 12 is enhanced. On the other hand, the heated air is mixed again after passing through the grating plate 17, the fluctuation of the temperature and the flow rate is reduced, the flow direction is also adjusted, and the hot air obtained by passing through the grating plate 17 tends to be more balanced, so that the uneven drying of the clothes caused by the overlarge difference of the temperature and the flow direction of the hot air can be avoided.

The fan 14 is located below the hot plate 13. The air blasting treatment is carried out below the electric heating plate 13, heated air can be driven to flow upwards, the movement rule of cold air flow is also met, and the energy consumption can be reduced.

Typically, the air inlet 171 is disposed at the bottom of the housing 12. In order to ensure that the gas flows smoothly, the bottom of the housing 12 is provided with a support column to prevent the gas inlet 171 from being directly grounded.

Be equipped with drain bar 18 in the bottom of drying zone 3, drain bar 18 includes first plate body 19, second plate body 20 and connecting rod 21, be equipped with wash port 22 on first plate body 19 and/or the second plate body 20, first plate body 19 and second plate body 20 are connected through connecting rod 21, keep apart heater 2 and drying zone 3 through being equipped with drain bar 18, connecting rod 21 is located the below of first plate body 19 and second plate body 20, be equipped with connecting hole 23 on first plate body 19 and the second plate body 20, connecting rod 21 can penetrate the connecting hole 23 and link together first plate body 19 and second plate body 20, the both ends of connecting rod 21 are equipped with fastening screw.

The setting adopts the first plate body 19 and the second plate body 20 of concatenation formula to can make the wardrobe of different width, can conveniently carry out the production of batchization, concrete width only need according to need splice can, through the setting of connecting rod 21, the fastening screw of screwing again can let first plate body 19 and second plate body 20 splice inseparabler, thereby better realization waterproof effect.

The first plate body 19 and the second plate body 20 are both provided with a plurality of blocks, the first plate body is provided with a groove 24 or a protrusion 25, the first plate body 19 and the second plate body 20 are matched with each other through the groove 24 and the protrusion 25, the first plate body 19 and the second plate body 20 are both provided with a convex strip, and the convex strip forms a water retaining strip 26 at the joint of the first plate body 19 and the second plate body 20.

The mating of the groove 24 and the protrusion 25 allows for a tighter connection between the first plate 19 and the second plate 20. Meanwhile, after the convex strips are arranged, the water can be prevented from flowing in a turbulent way better, so that the water can flow into the drain holes 22 smoothly.

The upper part in the drying area 3 is provided with a clothes hanging rod 27 and a clothes hanger 28, the clothes hanger 28 is connected with the clothes hanging rod 27 through a fixed hook, the fixed hook comprises a sliding part 29 and a connecting part 30 which are connected, the sliding part 29 is connected with the clothes hanging rod 27, the sliding part 29 can move along the axial direction of the clothes hanging rod 27, and the connecting part 30 is connected with the clothes hanger 28.

The drying wardrobe is arranged in a hotel room, and is convenient for a passenger to dry clothes in time. According to the drying wardrobe, the clothes hangers 28 are fixed on the clothes hanging rod 27 through the fixed hooks, so that the clothes hangers 28 cannot be taken down from the clothes hanging rod 27 at will, a traveler can only hang clothes in the drying wardrobe when wanting to hang the clothes, the traveler is prevented from taking down the clothes hangers 28 and hanging the clothes elsewhere, the habit of using the drying wardrobe by the traveler is cultivated, and the phenomenon that the clothes hangers 28 are lost or difficult to check due to the fact that the traveler hangs the clothes hangers 28 in a mess is also avoided. It is also possible to prevent water on clothes from dripping onto a carpet or a floor, resulting in damage to the carpet and the floor.

The drain hole 22 is connected with a drain pipe 31, and the drain pipe 31 is connected with a preset water receiving box 32 or directly connected with a sewer pipeline.

If be to the wardrobe of traditional hotel reform transform the back, can set up water receiving box 32, can be in the time of cleaning the room every day, let the cleaner regularly clear up the water in the middle of the water receiving box 32. If the drying wardrobe is arranged when a new wine shop is directly decorated, the water connecting and discharging pipe 31 can be directly connected with a sewer pipeline in a pre-buried mode, so that water can be discharged more conveniently.

The foregoing are only some embodiments of the invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. The lateral wall formula of blowing stoving wardrobe, its characterized in that, including the cabinet body (1), the cabinet body (1) is including heater (2) and drying zone (3), the cabinet body (1) is all located in heater (2) and drying zone (3), be equipped with air intake (4) on the lateral wall of drying zone (3), still be equipped with air exit (5) in drying zone (3), heater (2) are connected with air intake (4) and with the heat transfer to drying zone (3) that produces, air exit (5) are linked together with the outside.

2. The side wall blowing type drying wardrobe according to claim 1, wherein said air inlets (4) are disposed on both left and right side walls of said drying zone (3) and/or a rear side wall of said wardrobe body (1), and an air volume of said air inlets (4) is gradually increased along a decrease in vertical height.

3. The side-wall-blowing drying wardrobe according to claim 1, characterized in that the inner diameter of said air inlet opening (4) is greater than the inner diameter of said air outlet opening (5).

4. The side wall blowing type drying wardrobe according to claim 1, further comprising an air guide pipe (6), wherein an inlet end (61) of the air guide pipe (6) is connected with the heater (2), an outlet end (62) of the air guide pipe (6) is connected with the air inlet (4), the air guide pipe (6) is a bendable pipeline, the air guide pipe (6) is provided with a corrugated structure (7), the corrugated structure (7) can stretch out and draw back, and the outer wall of the air guide pipe (6) is wrapped with an aluminum foil (8).

5. The side-wall-blowing type drying wardrobe according to claim 1, wherein the wardrobe body (1) further comprises a storage area (9), a sealing rubber strip (10) is arranged at a contact position of the storage area (9) and a wardrobe door, an exhaust pipeline (11) is connected to the air outlet (5), and the exhaust pipeline (11) is communicated with outside air.

6. The side wall blowing type drying wardrobe according to claim 1, wherein the heater (2) comprises a casing (12), an electric heating plate (13) and a fan (14) are arranged in the casing (12), an air outlet (15) is further formed in the casing (12), the air outlet (15) is located above the electric heating plate (13), the fan (14) is located below the electric heating plate (13), the air outlet (15) is connected with the air guide pipe (6), a grid plate (17) is arranged at the air outlet (15), an air inlet (171) is formed in the bottom of the outer wall of the casing (12), and the air inlet (171) and the fan (14) are arranged oppositely.

7. The side wall blowing type drying wardrobe according to claim 1, wherein a drain board (18) is arranged at the bottom of the drying zone (3), the drain board (18) comprises a first board body (19), a second board body (20) and a connecting rod (21), a drain hole (22) is formed in the first board body (19) and/or the second board body (20), the first board body (19) and the second board body (20) are connected through the connecting rod (21), the heater (2) and the drying zone (3) are isolated by arranging the drain board (18), the connecting rod (21) is positioned below the first board body (19) and the second board body (20), a connecting hole (23) is formed in the first board body (19) and the second board body (20), and the connecting rod (21) can penetrate into the connecting hole (23) to connect the first board body (19) and the second board body (20) together, fastening screws are arranged at two ends of the connecting rod (21).

8. The side wall blowing type drying wardrobe according to claim 7, wherein the first plate body (19) and the second plate body (20) are both provided with a plurality of grooves (24) or protrusions (25), the first plate body (19) and the second plate body (20) are matched through the grooves (24) and the protrusions (25), the first plate body (19) and the second plate body (20) are provided with raised lines, and the raised lines form water retaining strips (26) at the connecting positions of the first plate body (19) and the second plate body (20).

9. The side-wall-blowing drying wardrobe according to claim 1, characterized in that a clothes rail (27) and a clothes hanger (28) are provided at the upper inner portion of said drying zone (3), said clothes hanger (28) being connected to said clothes rail (27) by means of a fixed hook comprising a slider (29) and a link (30) connected thereto, said slider (29) being connected to said clothes rail (27), said slider (29) being movable in the axial direction of said clothes rail (27), said link (30) being connected to said clothes hanger (28).

10. The lateral wall blowing type drying wardrobe according to claim 1, wherein a drain pipe (31) is connected to the drain hole (22), and the drain pipe (31) is connected to a preset water receiving box (32) or directly connected to a sewer pipeline.