CN201106220Y - Electric negative pressure type deodorizing closet - Google Patents

Abstract

The utility model relates to an electric negative-voltage type deodorized closestool which is installed and used in toilets of buildings. The design proposal of the utility model is that an air passage is arranged at the upper part of the back wall of a public urinal and an electric centrifugal exhaust fan is arranged outside the back wall of the urinal. A lower port of the air passage of the urinal is positioned above a water seal of the urinal. An upper port of the air passage deflects from the top end of the urinal and is connected with the exhaust fan by an air suction passage. A vent of the exhaust fan is communicated with the lower part of a drain pipeline through an exhaust passage. When in use, the air enters from the air passage to the drain pipeline of the buildings under the action of the exhaust fan, therefore negative voltage is formed inside the closestool to achieve the purpose of deodorization. The product of the utility model has the advantages of simple structure, easy operation, low production cost, environment protection, obvious deodorization effect, etc. Furthermore, the absence of odor in the toilet can effectively be guaranteed, thereby greatly improving township living and sanitary conditions and advancing the quality of life.

Description

Electronic suction type deodorizing closet

Technical field

The utility model belongs to the hygiene equipment technical field, relates to a kind of electronic suction type deodorizing closet of installing and using in the building washroom.

Background technology

At present in all kinds of buildings washroom set water closet generally only have excreta poured blow-off line fully after with water seal closet stool sealing sewage draining exit so that the passive type deodorization that its peculiar smell can not come out, for can with the toilet user after an action of the bowels excreta by the stink that is distributed before being washed down by indoor discharge, the air draft tube also generally is installed in the washroom, utilize the hot air come-up to carry out natural ventilation, because the air draft tube is to rely on natural ventilation, exhaust effect is relatively poor, so that this pernicious gas of foul smell can be trapped in the interior space for a long time and can not in time be discharged, and gives people on health and all bring very big harm psychologically.In order to strengthen deodorizing effect, many in recent years other has installed electric fan and has carried out brute force ventilation at the top, washroom, tries hard to the peculiar smell pressure of washroom is entered air refreshing tube.Although the power of electrical exhaust fan is enough big, wind-force is also very strong, but come out by excreta place in the water closet earlier because its scavenging period is a peculiar smell, take away gradually by the exhaust fan that is installed in the top, washroom more then, during this period the indoor peculiar smell that still is flooded with in washroom.Deodorizing mode preferably should be that subpunch is cleaned excreta, the washroom room air that will be filled with peculiar smell is then all changed, but it obviously is to be difficult for realizing that this way is being used in the water closet process people, therefore under the situation that excreta is not rinsed well, the effect that only depends on washroom overhead exhaust fan deodorizing is and is limited.

The utility model content

The purpose of this utility model is the problem that prior art exists is solved, thus provide a kind of simple in structure, easy to use, cheap, can be with the safe electronic suction type deodorizing closet of discharging outdoor maintenance washroom room air cleaning hermetically of excreta foul smell.

Foregoing invention purpose of the present utility model is that the designer passes through prior art products structurally rationally improved and realizes, its technical solution is: be provided with an air duct on the rear wall top of known type urinal, the rear wall outside at urinal is provided with an electric centrifugal-type exhaust fan, the lower port of urinal air duct is positioned at the top of urinal water seal, the upper port of air duct to urinal top is folded to and connects exhaust fan by air intake passage, and the exhaust opening of exhaust fan passes to the bottom of blowdown siphunculus by the exhaust passage.

The utility model has been realized the effect of water closet deodorizing by the scheme of the air duct of an external electric centrifugal-type exhaust fan is set in the inner excreta of water closet vicinity.In the use, after exhaust fan work, because excremental position is in negative pressuren zone, so just excreta present position steady flow in water closet from water closet top continuously of water closet air outside, will be after an action of the bowels the excretal odor gas direct air suction channel under the electrical exhaust fan effect, be output outdoorly through the building blow-off line, and the water closet outside all is in the position of windward, the people can't smell the excreta peculiar smell betwixt, thereby has reached the purpose of deodorizing.

Compare with existing like product, the utlity model has simple in structure, easy to operate, cheap, do not use advantages such as any chemical agent, environmental sound, deodorizing effect be obvious, this water closet peculiar smell that excreta produces in whole use can not come out owing to the effect of negative pressure, therefore can guarantee free from extraneous odour in the washroom effectively, greatly improve cities and towns inhabitation sanitary condition thus, improved people's quality of life.

Description of drawings

Accompanying drawing is the structural representation of a specific embodiment of the utility model.

The specific embodiment

Referring to accompanying drawing, electronic suction type deodorizing closet described in the utility model comprises water tank 1 and has the sitting urinal 2 of elbow blowdown siphunculus 4 (water storage is curved), be provided with an air duct 3 that constitutes by siphunculus or thin-walled cavity on the rear wall top of urinal 2, the lower port of urinal air duct 3 is positioned at the top of urinal water seal, its upper port be extended down to folding back, urinal top to and be communicated to electric centrifugal-type exhaust fan 6 by air intake passage 7, exhaust fan 6 is located at the rear wall outside of urinal 2, and the exhaust opening of exhaust fan 6 passes to the bottom of blowdown siphunculus 4 by exhaust passage 5.In the use, because the water seal that the curved surplus water that water closet use last time back is detained of water storage forms is stopped up, air can only be up along the pond rear wall from air duct 3 under exhaust fan 6 effects, 5 enter the building blow-off line by exhaust fan 6 back from the exhaust passage, thereby, reach the deodorizing purpose in the inner negative pressure that forms of water closet.The gauge tap of this water closet exhaust fan can also can be provided with separately by the control of washroom light switch.The single line arrow points is an air-flow direction in the accompanying drawing, and double-lined arrow is oriented to the excreta water (flow) direction.

This project organization ventilated before this and the excreta water stream channel is taken their own roads in water closet, unite two into one at last and incorporate the washroom blow-off line into, enter the shared vertical blow-off line of each floor of building again, the interior malleation waste gas of pipeline this moment enters atmosphere by the air pressure balance mouth that leads to roof, and the excreta current in the pipeline then flow into the septic tank of below ground downwards.Though this water closet air stream and excreta water stream channel was in design taken their own roads before this, unite two into one at last, in fact air stream and excreta current the two be not to pass through simultaneously.When water closet was not washed by water, air-flow was current; When water closet was washed by water, the excreta current will occupy pipeline, and current path will be temporarily blocked and be lost the negative pressure deodorization, but the duration is lacked (only having an appointment ten seconds) because water closet is washed by water, after current were broken through, current path returned again and recovers unimpeded, and the negative pressure deodorization promptly recovers again.

Overflow in order to prevent water closet foul smell in the sewer pipe when cutting off the power supply mode of occupation not, except excreta water stream channel with water seal closet stool sealing bottom, also must on the electric centrifugal-type exhaust fan, gravity-held check valve be installed, make and have only the air-flow that enters sewer from the water closet inboard to pass through.During exhaust fan work, rely on the pressure of air-flow to wash one way valve open, do not influence exhaust; When exhaust fan is not worked, rely on gravity freely to fall the occluded air passage.

Claims (2)

1, a kind of electronic suction type deodorizing closet, form by water tank (1) and the sitting urinal (2) that has an elbow blowdown siphunculus (4), it is characterized in that being provided with an air duct (3) on the rear wall top of urinal (2), the rear wall outside at urinal (2) is provided with an electric centrifugal-type exhaust fan (6), the lower port of urinal air duct (3) is positioned at the top of urinal water seal, the upper port of air duct (3) to urinal top is folded to and connects exhaust fan (6) by air intake passage (7), and the exhaust opening of exhaust fan (6) passes to the bottom of blowdown siphunculus (4) by exhaust passage (5).

2, electronic suction type deodorizing closet according to claim 1 is characterized in that on electric centrifugal-type exhaust fan (6) gravity-held check valve being installed.