CN113863455B - Flushing actuator for vacuum toilet - Google Patents

Abstract

The invention discloses a flushing actuating mechanism for a vacuum toilet, which is characterized by comprising a top cover and an actuating mechanism body, wherein a water valve assembly is arranged on the top cover and comprises a valve body, a water inlet and a water outlet are arranged on the valve body, a water passage pipeline is arranged between the water inlet and the water outlet, a first valve rod is further arranged on the valve body, a second valve rod is arranged in a mounting cavity, and a valve head matched with the sealing water passage pipeline is arranged on the second valve rod; the top cover is also provided with a corrugated rubber film which is positioned in the actuating mechanism body and forms a vacuum cavity with the top cover, a first spring sleeved on the second valve rod is sleeved on the corrugated rubber film in a sealing way, a driving block for controlling the second valve rod to slide up and down is sleeved on the corrugated rubber film, and the top cover is provided with an air passage communicated with the vacuum cavity; through the arrangement, the actuating mechanism body is connected with the water valve assembly, so that the actuating mechanism can also realize the function of the water inlet valve, the occupied space of the whole equipment is reduced, and the application range is wider.

Description

Flushing actuator for vacuum toilet

Technical Field

The invention relates to the technical field of vacuum toilets, and in particular to a flushing actuator for a vacuum toilet.

Background technique

A vacuum toilet is a system that creates a vacuum in the entire system. Each toilet in the system must be isolated from the system by an isolation valve. When flushing the toilet, this valve is opened to remove the contents of the toilet by relying on the pressure difference with atmospheric pressure. An ordinary toilet consumes 6 liters of water per flush, while a vacuum toilet only consumes 0.6 liters. It can also separate urine and feces, and the feces are directly sent to the fertilizer plant to be made into organic fertilizer. The vacuum system is maintained by the automatic operation of a vacuum pump. A vacuum toilet is generally maintained by a vacuum pump and an actuator to form a pressure difference with atmospheric pressure to remove the contents of the toilet. At the same time, the actuator will control the water inlet valve to open and flush the toilet. It is often used on ships or warships. However, the space on ships or warships is limited, and there are certain restrictions on the volume of vacuum toilets. The existing actuators and water inlet valves are set separately, which increases the volume of the equipment.

Summary of the invention

In order to solve the above problems, the present invention provides a flushing actuator for a vacuum toilet, so that the actuator is combined with a water inlet valve, thereby reducing the volume of the device.

To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a flushing actuator for a vacuum toilet, comprising a top cover and an actuator body, wherein the top cover is arranged on the actuator body, and is characterized in that a water valve assembly is arranged on the top cover, and the water valve assembly comprises a valve body arranged on a side of the top cover away from the actuator body, a water inlet and a water outlet are symmetrically arranged on the valve body, a water pipeline is arranged between the water inlet and the water outlet, a first valve stem is further arranged on the valve body and passes through the top cover and is exposed in the actuator body, an installation cavity connected to the water pipeline is arranged in the first valve stem, and a water pipe in the installation cavity is arranged in the valve body. A second valve stem is elastically connected, and a valve head for sealing a water pipeline is arranged on the second valve stem; a corrugated rubber membrane is also arranged on the top cover, and the corrugated rubber membrane is located in the actuator body and a vacuum chamber is formed between the top cover, and a first spring sleeved with the second valve stem is arranged in the vacuum chamber, and a driving block for controlling the second valve stem to slide up and down is sealed and sleeved on the corrugated rubber membrane, and the driving block includes a block sleeved with the corrugated rubber membrane, and a magnetic block capable of attracting the second valve stem is arranged in the block, and a slideway matching the first valve stem is arranged on the magnetic block; an airway connected with the vacuum chamber is also arranged on the top cover.

The present invention is further configured such that the actuator body includes a first shell, a second shell and a bottom cover, the second shell is located between the first shell and the bottom cover and is connected by screws; the top of the first shell is connected to the top cover and is internally provided with an installation cavity matching the corrugated rubber membrane, and the first shell is also provided with a through hole connecting the outside world with the installation cavity; sealing diaphragms are provided between the first shell and the second shell, and between the second shell and the bottom cover.

The present invention is further configured such that an air pressure regulating component is provided at one end of the airway located in the outside world, and the air pressure regulating component includes a regulating valve seat connected to the airway, and an airflow channel is provided in the regulating valve seat, and the airflow channel connects the airway with the outside world, and an internal thread is provided at one end of the airflow channel away from the airway, and an annular gasket is provided at the other end, and an adjusting rod is also threadedly connected in the airflow channel, and the end of the adjusting rod close to the airway is stepped and the largest diameter matches the annular gasket, and the other end is provided with a thread matching the airflow channel.

The present invention is further configured such that the outer side of one end of the regulating valve seat away from the air passage is configured in a hexagonal nut shape.

The present invention is further configured such that a fixing mechanism for fixing the valve body is provided on the side of the top cover away from the actuator body, the fixing mechanism includes a plurality of fixing columns arranged around the valve body and higher than the valve body, a fixing plate is provided on the fixing column, and the fixing plate is against the valve body.

The present invention is further configured such that four elastic sheets bent toward the middle of the first valve stem are provided on the circumferential side of one end of the first valve stem away from the valve body.

The present invention is further configured such that a filter screen and a bracket are provided in the water inlet, a spiral rod is rotatably connected to the middle of the bracket, a rotating plate is fixedly connected to the spiral rod, and bristles contacting the filter screen are provided at one end of the rotating plate facing the filter screen.

The present invention is further configured such that four arc-shaped positioning blocks are arranged on the sealing diaphragm, and the positioning blocks are located at the junctions with the first shell, the second shell and the bottom cover, and the first shell, the second shell and the bottom cover are provided with positioning grooves matching the positioning blocks.

In summary, the beneficial effects of the present invention are:

1. A water valve assembly is arranged on the top cover and connected to the actuator body, so that the water inlet valve and the actuator are combined with each other, so that the actuator can control the opening and closing of the sewage valve and other equipment, and can control the opening and closing of the water inlet valve to achieve flushing of the toilet, thereby reducing the space occupied by the vacuum toilet equipment and improving the practicality of the actuator; at the same time, four inwardly bent elastic sheets are circumferentially arranged on one end of the first valve stem close to the block, which can make the cooperation between the first valve stem and the slide smoother.

2. The actuator body adopts a split structure, separating the first shell, the second shell and the bottom cover, making the disassembly and maintenance of the actuator body simpler. The installation cavity in the first shell can place the corrugated rubber membrane on the water valve assembly. The corrugated rubber membrane plays a protective role to prevent the water valve assembly from being damaged by external sharp objects and causing failure. The through hole on the first shell can ensure that the air pressure in the installation cavity is consistent with the external air pressure; a sealing diaphragm is arranged between the first shell and the second shell, and between the second shell and the bottom cover to seal the shell, and the positioning block arranged on the sealing diaphragm can cooperate with the positioning groove to ensure that the sealing diaphragm is installed in place, and at the same time avoid the displacement of the sealing diaphragm during installation, resulting in inadequate sealing.

3. The air pressure regulating assembly installed on the airway can adjust the input and output air pressure in the vacuum chamber, thereby controlling the speed of contraction and recovery of the corrugated rubber membrane, and then controlling the closing time of the water valve; the end of the regulating valve seat exposed to the outside is in the shape of a hexagonal nut, making disassembly more convenient.

4. The setting of the fixing mechanism on the top cover that abuts against the valve body can ensure that the valve body and the top cover will not separate. At the same time, the fixing plate and the fixing plate can protect the valve body exposed to the outside world and prevent objects falling from above from causing damage to the valve body.

5. A filter is provided at the water inlet to filter impurities in the water and prevent impurities from entering the valve body and causing blockage or damage. At the same time, a spiral rod is rotatably connected to a bracket at the end of the water inlet close to the outside world. The spiral rod can rotate under the impact of the water flow, driving the rotating plate close to one end of the filter to rotate, so that the bristles in contact with the filter can clean the impurities attached to the filter to prevent impurities from attaching to the filter and causing blockage.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a half-section view of this embodiment.

FIG. 2 is a half-section view of the water valve assembly of this embodiment.

FIG. 3 is a local anatomical diagram of this embodiment.

FIG. 4 is an enlarged view of the adjusting rod of this embodiment.

FIG. 5 is a structural diagram of the sealing membrane of this embodiment.

Figure numerals: 1-top cover; 2-actuator body; 201-first housing; 2011-installation cavity; 2012-through hole; 202-second housing; 203-bottom cover; 204-sealing diaphragm; 2041-positioning block; 3-water valve assembly; 301-valve body; 302-water inlet; 303-water outlet; 304-water pipeline; 305-first valve stem; 306-installation cavity; 307-second valve stem; 308-valve head; 309-corrugated rubber membrane ;310-vacuum chamber;311-first spring;312-driving block;3121-block;3122-magnetic block;3123-slideway;313-adjusting rod;4-air pressure regulating assembly;401-adjusting valve seat;402-air flow channel;403-annular gasket;404-adjusting rod;5-fixing mechanism;501-fixing column;502-fixing plate;6-elastic sheet;7-filter screen;8-screw rod;9-rotating plate;10-brush hair;11-bracket.

Detailed ways

The present invention is further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1-5, this embodiment discloses a flushing actuator for a vacuum toilet, including a top cover 1 and an actuator body 2, wherein the top cover 1 is arranged on the actuator body 2, and is characterized in that a water valve assembly 3 is arranged on the top cover 1, and the water valve assembly 3 includes a valve body 301 arranged on a side of the top cover 1 away from the actuator body 2, a water inlet 302 and a water outlet 303 are symmetrically arranged on the valve body 301, a water passage 304 is arranged between the water inlet 302 and the water outlet 303, and a first valve stem 305 is further arranged on the valve body 1 to pass through the top cover 1 and exposed in the actuator body 2, a mounting cavity 306 connected to the water passage 304 is arranged in the first valve stem 305, a second valve stem 307 is elastically connected in the mounting cavity 306, and the second valve stem 307 is elastically connected in the mounting cavity 306. A valve head 308 for sealing the water pipeline 304 is arranged on the rod 307; a corrugated rubber membrane 309 is also arranged on the top cover 1, and the corrugated rubber membrane 309 is located in the actuator body 2 and a vacuum chamber 310 is formed between the top cover 1, and a first spring 311 which is sleeved with the second valve stem 307 is arranged in the vacuum chamber 310, and the corrugated rubber membrane 309 is sealingly sleeved with a driving block 312 for controlling the second valve stem 307 to slide up and down, and the driving block 312 includes a block body 3121 which is sleeved with the corrugated rubber membrane 309, and a magnetic block 3122 which can attract the second valve stem 307 is arranged in the block body 3121, and a slideway 3123 which matches the first valve stem 305 is arranged on the magnetic block 3122; an airway 313 which is connected with the vacuum chamber 310 is also arranged on the top cover 1.

In this embodiment, the actuator body 2 includes a first shell 201, a second shell 202 and a bottom cover 203, wherein the second shell 202 is located between the first shell 201 and the bottom cover 203 and is connected by screws; the top of the first shell 201 is connected to the top cover 1 and is provided with an installation cavity 2011 matching the corrugated rubber membrane 309, and the first shell 201 is also provided with a through hole 2012 connecting the outside with the installation cavity 2011; a sealing diaphragm 204 is provided between the first shell 201 and the second shell 202, and between the second shell 202 and the bottom cover 203.

In this embodiment, an air pressure regulating component 4 is provided at one end of the air duct 313 located in the outside world, and the air pressure regulating component 4 includes a regulating valve seat 401 connected to the air duct 313, and an air flow channel 402 is provided in the regulating valve seat 401. The air flow channel 402 connects the air duct 313 with the outside world, and an internal thread is provided at one end of the air flow channel 402 away from the air duct 313, and an annular gasket 403 is provided at the other end. An adjusting rod 404 is also threadedly connected in the air flow channel 402, and the end of the adjusting rod 404 close to the air duct 313 is stepped and the largest diameter matches the annular gasket 403, and the other end is provided with a thread matching the air flow channel 402.

In this embodiment, the outer side of one end of the regulating valve seat 401 away from the air passage 313 is configured in a hexagonal nut shape.

In this embodiment, a fixing mechanism 5 for fixing the valve body 301 is provided on the side of the top cover 1 away from the actuator body 2. The fixing mechanism 5 includes a plurality of fixing columns 501 arranged on the periphery of the valve body 301 and higher than the valve body 301. A fixing plate 502 is provided on the fixing column 501, and the fixing plate 502 is against the valve body 301.

In this embodiment, four elastic sheets 6 bent toward the middle of the first valve stem 305 are provided around one end of the first valve stem 305 away from the valve body 301 .

In this embodiment, a filter screen 7 and a bracket 11 are provided in the water inlet 302. A spiral rod 8 is rotatably connected to the middle of the bracket 11. A rotating plate 9 is fixedly connected to the spiral rod 8. The end of the rotating plate 9 facing the filter screen 7 is provided with bristles 10 that are in contact with the filter screen 7.

In this embodiment, four arc-shaped positioning blocks 2041 are provided on the sealing diaphragm 204. The positioning blocks 2041 are located at the junction of the first shell 201, the second shell 202 and the bottom cover 203. The first shell 201, the second shell 202 and the bottom cover 203 are provided with positioning grooves matching the positioning blocks 2041.

Working principle: Before the device is used, the actuator body 2 is connected with the pneumatic button, the airway 313 and the drain pipe, the water inlet 302 is connected with the water pipe, and the water outlet 303 is connected with the drain pipe. When the device is used, the pneumatic button is pressed to allow high-pressure gas to enter the actuator body 2, and then through the actuator body 2, the air in the vacuum chamber 310 is discharged into the actuator body 2 through the airway 313 and the air flow channel 402, and then the corrugated rubber membrane contracts, driving the drive block 312 to overcome the force of the first spring 311, so that the first valve stem 307 enters the slide 3123 in the magnetic block 3122, and then under the suction of the magnetic block 3122, the second valve stem 307 in the installation cavity 306 overcomes the force of the spring and moves downward, so that the valve head 308 is away from the water pipeline 304, so that the water flows through the water outlet 303 to the drain valve; at the same time, the actuator body 2 controls the drain valve to open and flush away the dirt.

Under the action of the water flow, the spiral rod 8 rotates, driving the rotating plate 9 to rotate together, so that the bristles 10 on the rotating plate 9 clean the filter screen 7.

After the device is used, the gas enters the vacuum chamber 310 through the air flow channel 402 on the regulating valve seat 401, and at the same time the first spring 311 rebounds, and the driving block 312 moves downward under the action of the elastic force, so that the magnetic block 3122 is separated from the first valve stem 305. In the absence of the force of the magnetic block 3122, the spring in the mounting cavity 306 pushes the second valve stem 307 upward, so that the valve head 308 seals the water pipeline 304, so that water no longer flows out of the water outlet 303; at the same time, when there is no gas, the drain valve is closed again.

When it is necessary to slow down the closing speed on the water pipeline 304, the adjusting rod 404 is rotated counterclockwise to make the adjusting rod 404 rotate inward. Since the front end of the adjusting rod 404 is stepped and the diameter of the end close to the outside is the largest, with the cooperation of the annular gasket 403, the opening in the airflow channel 402 for air to flow through is reduced, the flow rate of the airflow is slowed down, and the speed at which the drive block 312 disengages from the first valve stem 305 is also slowed down, thereby delaying the closing time of the water pipeline 304; when the adjusting rod 404 is rotated clockwise, the adjusting rod 404 rotates outward, the opening in the airflow channel 402 for air to pass through becomes larger, the speed at which the drive block 312 disengages from the first valve stem 305 becomes faster, and the closing speed of the water pipeline 304 becomes faster.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a wash actuating mechanism for vacuum closestool, includes top cap (1) and actuating mechanism body (2), top cap (1) sets up on actuating mechanism body (2), a serial communication port, be provided with water valve subassembly (3) on top cap (1), water valve subassembly (3) are including setting up valve body (301) in top cap (1) one side of keeping away from actuating mechanism body (2), be provided with water inlet (302) and delivery port (303) on valve body (301) symmetry, be provided with water passage (304) between water inlet (302) and delivery port (303), still be provided with on valve body (301) and pass top cap (1) first valve rod (305) in actuating mechanism body (2), be provided with in first valve rod (305) with water passage (304) intercommunication install chamber, install in the chamber elastic connection second valve rod (307), be provided with on second valve rod (307) and be used for sealing water passage (304) valve head (308); the novel valve is characterized in that a corrugated rubber film (309) is further arranged on the top cover (1), the corrugated rubber film (309) is located in the actuating mechanism body (2) and a vacuum cavity (310) is formed between the corrugated rubber film (309) and the top cover (1), a first spring (311) sleeved with the second valve rod (307) is arranged in the vacuum cavity (310), a driving block (312) for controlling the second valve rod (307) to slide up and down is hermetically sleeved with the corrugated rubber film (309), the driving block (312) comprises a block body (3121) sleeved with the corrugated rubber film (309), a magnetic block (3122) capable of attracting the second valve rod (307) is arranged in the block body (3121), and a slideway (3123) matched with the first valve rod (305) is arranged on the magnetic block body (3122); an air passage (313) communicated with the vacuum cavity (310) is also arranged on the top cover (1);

The actuating mechanism body (2) comprises a first shell (201), a second shell (202) and a bottom cover (203), wherein the second shell (202) is arranged between the first shell (201) and the bottom cover (203) in a screw connection manner; the top of the first shell (201) is connected with the top cover (1), a mounting cavity matched with the corrugated rubber film (309) is formed in the first shell, and a through hole (2012) for communicating the outside with the mounting cavity is formed in the first shell (201); a sealing diaphragm (204) is arranged between the first shell (201) and the second shell (202) and between the second shell (202) and the bottom cover (203);

The air pressure adjusting device is characterized in that an air pressure adjusting component (4) is arranged at one end of the air passage (313) located outside, the air pressure adjusting component (4) comprises an adjusting valve seat (401) connected with the air passage (313), an air flow channel (402) is arranged in the adjusting valve seat (401), the air flow channel (402) is communicated with the air passage (313) and the outside, an internal thread is arranged at one end of the air flow channel (402) far away from the air passage (313), an annular gasket (403) is arranged at the other end of the air flow channel (402), an adjusting rod (404) is further connected in a threaded manner, one end of the adjusting rod (404) close to the air passage (313) is in a stepped shape, the largest diameter of the adjusting rod is matched with the annular gasket (403), and threads matched with the air flow channel (402) are arranged at the other end of the adjusting rod. Be provided with filter screen (7) and support (11) in water inlet (302), support (11) middle part rotation is connected with hob (8), fixedly connected with changes board (9) on hob (8), change board (9) towards the one end of filter screen (7) be provided with filter screen (7) contact brush hair (10).

2. A flushing actuator for a vacuum toilet according to claim 1, wherein the adjusting valve seat (401) is provided in a hexagonal nut-like arrangement outside the end remote from the air passage (313).

3. The flushing actuating mechanism for a vacuum toilet according to claim 1, wherein a fixing mechanism (5) for fixing the valve body (301) is arranged on one side, away from the actuating mechanism body (2), of the top cover (1), the fixing mechanism (5) comprises a plurality of fixing columns (501) which are arranged on the periphery of the valve body (301) and are higher than the valve body (301), fixing plates (502) are arranged on the fixing columns (501), and the fixing plates (502) are propped against the valve body (301).

4. A flushing actuator for a vacuum toilet according to claim 1, wherein the first valve stem (305) is provided with four elastic pieces (6) bent toward the middle of the first valve stem (305) on the side of the end circumference thereof remote from the valve body (301).

5. The flushing actuator for a vacuum toilet according to claim 1, wherein four arc-shaped positioning blocks (2041) are arranged on the sealing membrane (204), the positioning blocks (2041) are located at the joints of the first shell (201), the second shell (202) and the bottom cover (203), and positioning grooves matched with the positioning blocks (2041) are arranged on the first shell (201), the second shell (202) and the bottom cover (203).