CN220465489U - Locomotive bathroom sewage disposal system - Google Patents

Abstract

The utility model discloses a locomotive toilet sewage disposal system, which comprises a gas circuit unit, a water circuit unit and a sewage disposal mechanism, wherein the water circuit unit is connected with the sewage disposal mechanism; the air path unit comprises a high-pressure fan, a first control valve, a second control valve and a third control valve, and three epitaxial air paths are arranged on the high-pressure fan; the waterway unit comprises a water tank, a reversing valve and a bag pump which are sequentially connected, a first water inlet, a water outlet, a pressurizing port and a reversing port are arranged on the reversing valve, the reversing valve is communicated with the water tank through the first water inlet, communicated with the sewage disposal mechanism through the water outlet, communicated with the bag pump through the pressurizing port and communicated with the air circuit unit through the reversing port. The bag pump pressurizing technology is selected, so that the pressurizing of the high-pressure air to the waterway unit is reliably completed, and the problem of incomplete flushing caused by low flushing pressure is thoroughly solved. Meanwhile, the bag pump has good pressurizing reliability, low system failure rate and long service life.

Description

Locomotive bathroom sewage disposal system

Technical Field

The utility model belongs to the technical field of locomotive equipment, and particularly relates to a locomotive toilet sewage disposal system.

Background

The locomotive toilet adopts an electric pump to pressurize the waterway so as to enable the flushing pressure to reach the design requirement, and the toilet adopts a flap mechanism to control on-off. The system can realize the expected function, but has the following problems in actual use:

firstly, the flushing pressure is low, and the flushing effect of the toilet is poor;

secondly, the electric pump and the turning plate mechanism have the defect of high failure rate, and the electric pump is taken as an example, so that the electric pump needs to be frequently maintained in actual use, and the service time reaches about three years, so that the electric pump needs to be replaced, and the maintenance cost is greatly increased;

based on the above, the existing locomotive toilet sewage disposal system not only affects the use of users and has poor product experience, but also has the defect of high maintenance cost.

In the prior art, a slide valve mechanism is adopted by referring to automobile products, but the slide valve is formed by an all-plastic piece. In extremely cold application scenes, after the plastic part and the sealing ring are at rest for a long time, adhesion can occur, so that the slide valve mechanism cannot normally act.

Disclosure of Invention

The utility model aims to provide a locomotive toilet sewage disposal system which is used for solving the problems in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a sewage disposal system of a locomotive toilet comprises a gas circuit unit, a water circuit unit and a sewage disposal mechanism;

the air path unit comprises a high-pressure fan, a first control valve, a second control valve and a third control valve, and three epitaxial air paths are arranged on the high-pressure fan;

the waterway unit comprises a water tank, a reversing valve and a bag pump which are sequentially connected, wherein the reversing valve is provided with a first water inlet, a water outlet, a pressurizing port and a reversing port, the reversing valve is communicated with the water tank through the first water inlet, is communicated with the sewage disposal mechanism through the water outlet, is communicated with the bag pump through the pressurizing port and is communicated with the air circuit unit through the reversing port;

correspondingly, one of the three air paths is configured as a pressurizing air path communicated with the bag pump, the other is configured as a reversing air path communicated with the reversing port, the other is configured as a sewage air path connected with the sewage mechanism, and the first control valve, the second control valve and the third control valve are respectively arranged on the pressurizing air path, the reversing air path and the sewage air path, wherein the reversing air path is used for controlling the communication mode of the reversing valves so as to form a water supply loop of the water tank communicated with the bag pump through the reversing valves, or the bag pump is communicated with an external drainage loop through the reversing valves.

In one possible design, the pressurization value of the high pressure fan is between 480 and 520 kilopascals.

In one possible design, the sewage draining mechanism comprises a toilet, a pneumatic slide valve and a sewage tank, wherein the toilet is provided with a second water inlet and a sewage draining outlet, the second water inlet is communicated with a water outlet of the reversing valve through a water flushing pipe, correspondingly, a fourth control valve is arranged on the water flushing pipe, the sewage draining outlet is communicated with the sewage tank through the pneumatic slide valve, and the pneumatic slide valve is connected with a sewage draining air path.

In one possible design, the pneumatic slide valve is a stainless steel slide plate.

In one possible design, the three-way valve is connected to the water outlet of the reversing valve, and has two water outlets, one of which is connected to the sewage draining mechanism, the other is connected to a hand washing pipeline extending to the hand washing basin, and the hand washing pipeline is provided with a fifth control valve.

In one possible design, the sewage treatment device further comprises a control unit, wherein the control unit comprises a control subunit and a sensor subunit, the control subunit is respectively and electrically connected with the air path unit, the water path unit, the sewage treatment mechanism and the sensor subunit, and the sensor subunit is fixed on the sewage treatment mechanism.

The beneficial effects are that:

the bag pump pressurizing technology is selected, the pressurization of the water path unit by high-pressure air is reliably completed, the water outlet pressure is ensured to meet the flushing requirement of the toilet, the problem that flushing is incomplete due to low flushing pressure is thoroughly solved, and the use experience of a locomotive toilet is improved. Meanwhile, the bag pump has good pressurizing reliability, low system failure rate and long service life, and effectively solves the problem of high maintenance cost of the electric pump in the prior art.

The sliding plate of the pneumatic sliding valve is made of stainless steel, so that the adhesion phenomenon in an extremely cold environment is avoided, and the starting sliding valve is ensured to work normally.

Drawings

FIG. 1 is a schematic diagram of a locomotive toilet sewage disposal system.

In the figure:

100. the gas path unit; 101. a high-pressure fan; 102. a first control valve; 103. a second control valve; 104. a third control valve; 200. a waterway unit; 201. a water tank; 202. a reversing valve; 203. a bladder pump; 300. a sewage disposal mechanism; 301. a toilet bowl; 302. a pneumatic slide valve; 303. a dirt box; 304. a fourth control valve; 401. a hand washing pipeline; 402. a hand washing pool; 403. and a fifth control valve.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model.

Example 1:

as shown in fig. 1, a sewage disposal system for a locomotive toilet comprises a gas circuit unit 100, a water circuit unit 200 and a sewage disposal mechanism 300;

the air path unit 100 comprises a high-pressure fan 101, a first control valve 102, a second control valve 103 and a third control valve 104, and three epitaxial air paths are arranged on the high-pressure fan 101;

the waterway unit 200 comprises a water tank 201, a reversing valve 202 and a bag pump 203 which are sequentially connected, wherein the reversing valve 202 is provided with a first water inlet, a water outlet, a pressurizing port and a reversing port, the reversing valve 202 is communicated with the water tank 201 through the first water inlet, is communicated with the sewage disposal mechanism 300 through the water outlet, is communicated with the bag pump 203 through the pressurizing port and is communicated with the air circuit unit 100 through the reversing port;

accordingly, one of the three air paths is configured as a pressurized air path communicated with the bladder pump 203, the other is configured as a reversing air path communicated with the reversing port, the other is configured as a sewage air path connected with the sewage mechanism 300, and the first control valve 102, the second control valve 103 and the third control valve 104 are respectively arranged on the pressurized air path, the reversing air path and the sewage air path, wherein the reversing air path is used for controlling the communication form of the reversing valve 202 so as to form a water supply loop in which the water tank 201 is communicated with the bladder pump 203 through the reversing valve 202, or the bladder pump 203 is communicated with an external drainage loop through the reversing valve 202.

The locomotive bathroom sewage disposal system is provided with the air path unit 100 on the basis of the water path unit 200, and the air path unit 100 replaces pressurizing equipment such as an electric pump, so that the defects of high failure rate, frequent maintenance and the like caused by the electric pump are overcome. Meanwhile, the air path unit 100 has a plurality of air paths to respectively realize the linkage of the air path unit 100, the water path unit 200 and the pollution discharge mechanism 300, specifically:

the bladder pump 203 stores a certain amount of water, and the bladder pump 203 is pressurized by the pressurization air path, so that the water pressure in the bladder pump 203 reaches the flushing requirement, and the flushing of the toilet 301 is completed.

For the waterway unit 200, water filling of the bladder pump 203 and water discharging of the bladder pump 203 are required to be completed, wherein the bladder pump 203 is filled with water, that is, the water tank 201 transmits water to the bladder pump 203 through the water supply circuit, at this time, the water supply circuit is connected, the water discharge circuit is disconnected, and part of water is pressurized and stored in the bladder pump 203 for standby. The water from the bladder pump 203 is discharged to flush the sewage disposal mechanism 300, and at this time, the water supply circuit is disconnected and the water discharge circuit is connected.

Further, the direction of the water body is changed by the arrangement of the reversing valve 202 so that one of the water supply circuit and the water discharge circuit is connected and the other is disconnected. In combination with practical use, when the sewage draining structure is washed, the air circuit unit 100 is started, the high-pressure fan 101 works and pressurizes the bag pump 203 through the pressurizing air circuit, then the reversing circuit is opened and high-pressure air is transmitted to the reversing valve 202, so that the reversing of the reversing valve 202 is realized, the on-off state of the water supply circuit and the water draining circuit is further switched, namely, the water supply circuit is disconnected, and the water draining circuit is communicated, so that the water outlet of the bag pump 203 is realized. On the contrary, after the sewage draining structure is washed, the air path unit 100 is stopped, the reversing circuit is disconnected, the reversing valve 202 is reset after high-pressure air is lost, namely, the water supply circuit is communicated, the drainage circuit is disconnected, meanwhile, the water body in the bag pump 203 is reduced, the water tank 201 fills the bag pump 203 through the water supply circuit, and the water filling of the bag pump 203 is completed.

With respect to the bladder pump 203, in the prior art, the bladder pump 203 is used as a pressure stabilizing device, and is capable of maintaining pressure after being inflated and pressurized, and is generally used for stabilizing pressure of waterways. The use of the capsule pump 203 is changed in the locomotive toilet sewage disposal system, specifically, water is filled into the capsule pump 203, pressurization is realized by extruding the capsule pump 203 through high-pressure air, and water stored in the capsule pump 203 is discharged after the water pressure reaches the standard, so that flushing is realized. Based on this, the bladder pump 203 changes from a pressure stabilizing device to a pressurizing device.

Through experiments, in the locomotive bathroom sewage disposal system, the high-pressure fan 101 and the bag pump 203 form a pressurizing structure for realizing pressurization, and the pressurizing structure can be effectively used for 5 ten thousand times, and the service life is about 10 years in combination with the actual use frequency. Compared with the service life of the electric pump of the prior art of about 3 years, on the basis of guaranteeing the effect of flushing, the application greatly improves the service life of the pressurizing structure, almost does not need maintenance in the use process, and greatly reduces the maintenance cost in the use process.

When the pollution discharge mechanism 300 is in operation, when flushing is needed, the air circuit unit 100 is started, the high-pressure fan 101 is started, the first control valve 102 is opened, the pressurizing air circuit is conducted, and the high-pressure fan 101 pressurizes the bag pump 203 through the pressurizing air circuit so as to pressurize water in the bag pump 203. The water pressure in the capsule pump 203 reaches the preset range, the second control valve 103 is opened, the reversing air passage is conducted, the high-pressure air of the high-pressure fan 101 is conducted into the reversing valve 202 through the reversing air passage, the reversing valve 202 reverses, so that the water supply loop is disconnected, the water discharge loop is communicated, meanwhile, the fourth control valve 304 in the sewage disposal mechanism 300 is opened, so that flushing water smoothly enters the toilet 301 of the sewage disposal mechanism 300, and flushing is realized. During flushing, the third control valve 104 is opened, the sewage gas path is conducted, and the high-pressure air of the high-pressure fan 101 drives the pneumatic slide valve 302 of the sewage mechanism 300 to work, so that the toilet 301 in the sewage mechanism 300 is communicated with the sewage box 303, and sewage enters the sewage box 303.

After the flushing is finished, the air path unit 100 stops working, the high-pressure fan 101 stops, the first control valve 102, the second control valve 103 and the third control valve 104 are closed, the pressurizing air path, the reversing air path and the sewage air path are all disconnected, the bag pump 203 stops water outlet, and the reversing valve 202 and the starting slide valve are reset respectively. At this time, the water supply circuit is connected, the water discharge circuit is disconnected, and at the same time, the fourth control valve 304 is closed, and the water tank 201 supplements water to the bladder pump 203 through the water supply circuit.

In one possible implementation, the pressurization value of the high pressure fan 101 is between 480 and 520 kilopascals. Based on the design scheme, the pressurization value is generally selected to be 500 kilopascals, so that the flushing requirement under various conditions is met. Further, for different use conditions, specific pressurization values of the high-pressure fan 101 can be flexibly set in the range, so that adaptability is improved.

In one possible implementation, the sewage draining mechanism 300 comprises a toilet 301, a pneumatic slide valve 302 and a sewage box 303, wherein the toilet 301 is provided with a second water inlet and a sewage drain, the second water inlet is communicated with a water outlet of the reversing valve 202 through a water flushing pipe, correspondingly, a fourth control valve 304 is arranged on the water flushing pipe, the sewage drain is communicated with the sewage box 303 through the pneumatic slide valve 302, and the pneumatic slide valve 302 is connected with a sewage draining gas circuit.

Based on the above design, the toilet 301 includes, but is not limited to, a toilet 301 and a squatting pan 301. The pneumatic slide valve 302 is used for controlling the on-off of the toilet 301 and the dirt box 303, and in general, the toilet 301 is disconnected from the dirt box 303 to prevent the odor in the dirt box 303 from escaping into the locomotive, so as to influence riding experience; when the toilet 301 is flushed, the pneumatic slide valve 302 is opened to allow the toilet 301 to communicate with the dirt box 303 so that dirt on the toilet 301 is smoothly flushed into the dirt box 303.

For the toilet 301, it is connected to the reversing valve 202 through a flush pipe, so that the toilet 301 communicates with the bladder pump 203 through the reversing valve 202, thereby forming the drain circuit. In view of the fact that the reversing valve 202 is also connected with the hand washing pipeline 401, a fourth control valve 304 is arranged on the water washing pipeline, the fourth control valve 304 is matched with a fifth control valve 403 on the hand washing pipeline 401 to control the flow direction of the water discharged by the capsule pump 203,

preferably, the pneumatic slide valve 302 is a stainless steel slide plate. Based on the above design, the pneumatic slide valve 302 is a complex mechanical device, in the locomotive bathroom sewage disposal system, only the slide plate of the pneumatic slide valve 302 is improved, namely, a stainless steel slide plate is used instead, and through material replacement, the cost of the improvement is low, the adhesion phenomenon occurring in the extremely cold environment can be avoided, and the starting slide valve can work normally.

In one possible implementation, a three-way valve is connected to the drain port of the reversing valve 202, the three-way valve having two water outlets, one of which is connected to the drain mechanism 300, and the other is connected to a hand washing line 401 extending to the hand washing sink 402, and a fifth control valve 403 is provided on the hand washing line 401.

Based on the above design scheme, through the setting of wash pipe 401, on the basis of flushing stool pot 301, can be used to the passenger wash the hands, expanded locomotive bathroom sewage system's function, the practicality is good. Meanwhile, the hand sink 402 can be any suitable commercial model, and has wide selection range and good practicability.

In one possible implementation, the (locomotive toilet blowdown system) further comprises a control unit including a control subunit and a sensor subunit, the control subunit being electrically connected to the air path unit 100, the water path unit 200, the blowdown mechanism 300 and the sensor subunit, respectively, the sensor subunit being fixed on the blowdown mechanism 300.

Based on the above design scheme, realize through the setting of control unit locomotive bathroom drain system's automatic work has improved automation and intelligent degree, has improved the convenience of use. Wherein, the control subunit can be any suitable commercially available controller; the sensor sub-unit is used for collecting actions of passengers and feeding back to the control sub-unit so as to realize flushing of the toilet 301 and/or water discharge of the hand washing pipeline 401, and it is easy to understand that the sensor sub-unit can be selected from any suitable commercial model.

Example 2:

the embodiment introduces a using method based on the locomotive bathroom sewage disposal system on the basis of the locomotive bathroom sewage disposal system, and the using method comprises the following steps:

s1: the bladder pump 203 is filled with water;

s2: the water outlet of the bag pump 203 is performed, wherein passenger action information is acquired, and the water outlet direction of the bag pump 203 is selected according to the passenger action information so as to be used as water supply for flushing or washing the toilet 301;

s3: the above steps are cycled.

Based on the above design, the bladder pump 203 is used to store water, which is pressurized and then discharged for use as a toilet 301 flush or hand wash water supply. Specifically, since the water storage amount in the bladder pump 203 is the same, but the toilet 301 is thoroughly flushed to avoid residue, and the hand wash water supply is to avoid splashing as much as possible to wet the clothes of the passenger, the toilet 301 is flushed for a shorter time than the hand wash water supply to meet the requirements of both uses.

Further, for the acquisition of the action information of the passengers, the locomotive toilet sewage disposal system is realized by the sensor subunit obtained by the control unit, so that the operations of the passengers are reduced, and the convenience of use is improved. Alternatively, a mechanical structure such as a corresponding operation button or a rotary handle may be provided, and the occupant may manually operate the device to realize the corresponding function.

Step S1 the water filling of the bladder pump 203 comprises the steps of:

s101: the reversing valve 202 is reset, so that the water tank 201 is communicated with the bladder pump 203 through the reversing valve 202; based on this, the air path unit 100 is closed, the high-pressure fan 101 is stopped, and the first control valve 102, the second control valve 103 and the third control valve 104 are all kept closed, wherein the pressurization air path is disconnected when the first control valve 102 is closed, so as to avoid the pressurization bag pump 203; the second control valve 103 is closed, the reversing air passage is disconnected, high-pressure air is not introduced into the reversing valve 202, and the reversing valve 202 is reset to be communicated with the water tank 201 and the bag pump 203; when the third control valve 104 is closed, the blowdown gas path is disconnected, so that the pneumatic slide valve 302 is reset, the toilet 301 is disconnected from the sewage box 303, and the peculiar smell of sewage is prevented from escaping into the locomotive.

S102: based on the water tank 201 communicating with the bladder pump 203, the water supply circuit is turned on, and water in the water tank 201 flows into the bladder pump 203. Based on this, it is preferable that the water tank 201 is located above the bladder pump 203 to realize water replenishment by gravity, reducing the arrangement of the driving member, and also contributing to reduction in energy consumption.

Step S2, the water outlet of the bladder pump 203 comprises the following steps:

s201: the bag pump 203 is pressurized, wherein the high-pressure fan 101 is started, the first control valve 102 is opened, the pressurizing air passage is communicated, and high-pressure air of the high-pressure fan 101 acts on the bag pump 203 through the pressurizing air passage; based on this, the high-pressure air presses the bladder pump 203 to achieve pressurization until the water pressure in the bladder pump 203 reaches a preset range.

S202: the reversing valve 202 acts, wherein the third control valve 104 is opened, the reversing air passage is conducted, high-pressure air of the high-pressure fan 101 acts on the reversing valve 202 through the reversing air passage, the reversing valve 202 acts to disconnect the water supply loop, and the water discharge loop is conducted; based on this, the bladder pump 203 communicates with the drain mechanism 300 or the hand wash line 401 through the reversing valve 202 to drain the high pressure water within the bladder pump 203 and to be used for toilet 301 flushing or hand wash water supply.

S203: the bladder pump 203 discharges water, wherein the fourth control valve 304 and/or the fifth control valve 403 are opened, and the water discharge direction is selected based on the opening and closing conditions of the fourth control valve 304 and the fifth control valve 403; based on this, when the fourth control valve 304 is opened, the high-pressure water in the bladder pump 203 is used for flushing the toilet 301; when the fifth control valve 403 is opened, the high pressure water in the bladder pump 203 is used for hand washing water supply.

The sewage mechanism comprises a sewage box 303, when the fourth control valve 304 is opened, the second control valve 103 is opened, the sewage gas path is conducted, high-pressure air of the high-pressure fan 101 acts on the pneumatic slide valve 302 through the sewage gas path, and the pneumatic slide valve 302 slides and communicates the toilet 301 with the sewage box 303. Based on this, the dirt is smoothly washed into the dirt box 303.

It will be readily appreciated that when the dirt mechanism is not provided with a dirt box 303, the toilet 301 communicates with the environment, is flushed with pressurized water and discharges dirt directly to the environment.

Alternatively, the toilet 301 flush time is 4-6 seconds and the hand wash water supply time is 13-17 seconds. Based on the above, the impact force of the water can meet the requirements of dirt washing and hand washing respectively through the differentiation of the water supply time.

S204: the control valve is reset, wherein when the bladder pump 203 is out of water for flushing the toilet 301, the first control valve 102, the second control valve 103, the third control valve 104 and the fourth control valve 304 are all closed; when the bladder pump 203 is out of the water for hand washing, the first control valve 102, the third control valve 104, and the fifth control valve 403 are all closed.

Based on this, after the control valve is reset, the step S1 of filling the bladder pump 203 with water is circulated, so that the bladder pump 203 is filled with water for the next use.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The sewage disposal system of the locomotive toilet is characterized by comprising a gas circuit unit (100), a water circuit unit (200) and a sewage disposal mechanism (300);

the air path unit (100) comprises a high-pressure fan (101), a first control valve (102), a second control valve (103) and a third control valve (104), and three epitaxial air paths are arranged on the high-pressure fan (101);

the waterway unit (200) comprises a water tank (201), a reversing valve (202) and a bag pump (203) which are sequentially connected, wherein a first water inlet, a water outlet, a pressurizing port and a reversing port are formed in the reversing valve (202), the reversing valve (202) is communicated with the water tank (201) through the first water inlet, is communicated with a sewage draining mechanism (300) through the water outlet, is communicated with the bag pump (203) through the pressurizing port, and is communicated with the air circuit unit (100) through the reversing port;

correspondingly, one of the three air paths is configured as a pressurizing air path communicated with the bag pump (203), the other is configured as a reversing air path communicated with the reversing port, the other is configured as a sewage air path connected with the sewage mechanism (300), the first control valve (102), the second control valve (103) and the third control valve (104) are respectively arranged on the pressurizing air path, the reversing air path and the sewage air path, wherein the reversing air path is used for controlling the communication mode of the reversing valve (202) so as to form a water supply loop of the water tank (201) communicated with the bag pump (203) through the reversing valve (202), or the bag pump (203) is communicated with an external drainage loop through the reversing valve (202).

2. The locomotive toilet drain system of claim 1 wherein the high pressure fan (101) has a pressurization value of between 480 and 520 kpa.

3. The locomotive toilet sewage system according to claim 1, wherein the sewage mechanism (300) comprises a toilet bowl (301), a pneumatic slide valve (302) and a sewage tank (303), the toilet bowl (301) is provided with a second water inlet and a sewage outlet, the second water inlet is communicated with a water outlet of the reversing valve (202) through a water flushing pipe, correspondingly, a fourth control valve (304) is arranged on the water flushing pipe, the sewage outlet is communicated with the sewage tank (303) through the pneumatic slide valve (302), and the pneumatic slide valve (302) is connected with a sewage gas path.

4. A locomotive toilet drain system as claimed in claim 3, wherein the pneumatic slide valve (302) is a stainless steel slide plate.

5. A locomotive toilet drain system according to claim 3, wherein the drain port of the reversing valve (202) is connected with a three-way valve having two water outlets, one of the two water outlets is connected with the drain mechanism (300), the other is connected with a hand washing pipeline (401) extending to the hand washing basin (402), and the hand washing pipeline (401) is provided with a fifth control valve (403).

6. The locomotive toilet drain system of any one of claims 1-5, further comprising a control unit including a control subunit and a sensor subunit, the control subunit being electrically connected to the air circuit unit (100), the water circuit unit (200), the drain mechanism (300) and the sensor subunit, respectively, the sensor subunit being secured to the drain mechanism (300).