CN215888501U - Blowoff valve of vacuum toilet - Google Patents

Abstract

The utility model discloses a blowoff valve of a vacuum toilet, which comprises a vacuum blowoff valve, a pneumatic control water inlet valve and a pneumatic control actuator, wherein the vacuum blowoff valve is arranged on a vacuum blowoff pipeline of the vacuum toilet and is used for realizing blowoff, the pneumatic control water inlet valve is arranged on a water inlet pipeline of the vacuum toilet and is used for realizing flushing, a pneumatic control controller is connected with a pneumatic control flushing button of the vacuum toilet and is used for controlling the pneumatic control water inlet valve and the vacuum blowoff valve to be switched on and off, the left end and the right end of the vacuum blowoff valve are respectively provided with a sewage inlet and a sewage outlet, a sewage inlet pipe joint and a sewage outlet pipe joint are respectively and fixedly arranged on the sewage inlet and the sewage outlet, and the pneumatic control water inlet valve and the pneumatic control actuator are fixedly arranged on the sewage outlet pipe joint. The service life is long.

Description

Blowoff valve of vacuum toilet

Technical Field

The utility model relates to a blowdown valve, in particular to a blowdown valve of a vacuum toilet.

Background

The vacuum sewage system is characterized in that the alternation of partial vacuum and atmospheric pressure in the controller chamber is switched to realize the opening (working state) and the closing (non-working state) of the vacuum sewage valve and the flushing water valve, wherein the control device plays an important role, and the control process of the control device is as follows: the vacuum waste valve is operated such that feces or other gaseous and liquid solids in the vacuum toilet are discharged from the vacuum toilet related equipment to a vacuum collection device (e.g., an intermediate receptacle, a following vacuum waste tank) or a vacuum sewer, while the flush water valve is operated such that flush water is flushed through the vacuum toilet related equipment cavity related chamber. The prior art already has a vacuum toilet related control device, which mainly has the following defects: the blowdown valve control device has the advantages that each unit is relatively independent, the number of elements is large, the specification number is large, individual parts are movable parts which are matched with other parts, the structural size is small, the damage is easy, and the controller is complex in structure, high in cost, short in service life, low in reliability and high in manufacturing and maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a blowdown valve of a vacuum toilet, which aims to solve the problems that in the prior art, a blowdown valve in a vacuum blowdown system is unreasonable in structural design, large in occupied space, high in investment cost and maintenance cost, poor in functionality and high in failure rate.

The utility model adopts the technical scheme for solving the technical problems that: a blowoff valve of a vacuum toilet comprises a vacuum blowoff valve, a pneumatic control water inlet valve and a pneumatic control actuator, wherein the vacuum blowoff valve is arranged on a vacuum blowoff pipeline of the vacuum toilet and used for realizing blowoff, the pneumatic control water inlet valve is arranged on a water inlet pipeline of the vacuum toilet and used for realizing flushing, the pneumatic control controller is connected with a pneumatic control flushing button of the vacuum toilet and used for controlling the pneumatic control water inlet valve and the vacuum blowoff valve to be switched on and off, the left end and the right end of the vacuum blowoff valve are respectively provided with a sewage inlet and a sewage outlet, a sewage inlet pipe joint and a sewage outlet pipe joint are respectively and fixedly arranged on the sewage inlet and the sewage outlet, the pneumatic control water inlet valve and the pneumatic control actuator are fixedly arranged on the sewage outlet pipe joint, the side wall of the sewage outlet pipe joint is provided with a flange fixing plate, and the upper side of the flange fixing plate is provided with an L-shaped fixing support and a U-shaped fixing support which are respectively and fixedly arranged on the pneumatic control water inlet valve and the pneumatic control actuator, the bottom of L shape fixed bolster is equipped with the mounting hole, mounting hole and the cooperation of pegging graft of interface of intaking, the lateral part of L shape fixed bolster is equipped with mounting groove, and mounting groove and the cooperation of pegging graft of the flange board of setting on water outlet side wall, the rotatory hasp that is used for locking water outlet is still installed at mounting groove's top, the top of L shape fixed bolster is equipped with detachable clamp structure, and clamp structure is including fixed half clamp and the half clamp of activity, and the both ends of fixed half clamp and the both ends difference buckle connection of the half clamp of activity, sewage coupling, flange fixed plate, L shape fixed bolster, U-shaped fixed bolster and fixed half clamp be integrated into one piece structure.

Further perfection, the top of the vacuum blowoff valve is provided with a vacuum breaker valve, the vacuum breaker valve is provided with a second control interface, the side wall of the vacuum blowoff valve is provided with a first air interface, the connector of the blowoff pipe is provided with a vacuum connecting pipe with the lower end communicated with a blowoff port,

the pneumatic control water inlet valve is provided with a water inlet interface, a water outlet interface and a first control interface;

the pneumatic control actuator is provided with a vacuum interface, a first output interface, a second air interface and a pneumatic control interface;

the three-way valve is arranged among the vacuum interface, the middle part of the vacuum connecting pipeline and the first air interface, two pipelines of the three-way valve are respectively connected with the vacuum interface and the first air interface, the third pipeline of the three-way valve is communicated with the middle part of the vacuum connecting pipeline and is provided with a needle valve component, the first output interface is connected with the first control interface through an air pipe, the second output interface is connected with the second control interface through an air pipe, the second air interface is connected with the upper end of the vacuum connecting pipeline through a one-way valve component, and the air control interface is connected with an air control flushing button through an air pipe. The vacuum connecting pipeline, the three-way pipe and the sewage pipe joint are of an integrated forming structure.

Further perfecting, the top and the bottom of the vacuum blowoff valve are respectively provided with an upper cover and a lower cover, an upper membrane bowl and a lower membrane bowl are respectively arranged between the upper cover and the vacuum blowoff valve, and between the lower cover and the vacuum blowoff valve, a rubber pipe and a rubber pipe automatic clamping device are arranged inside the vacuum blowoff valve, the automatic rubber tube clamping device comprises a first pressure spring, a pressure spring seat, an upper sliding frame and a lower sliding frame which are of U-shaped structures, the rubber tube is positioned between the upper sliding frame and the lower sliding frame, the two ends of the rubber tube are respectively connected with the sewage inlet and the sewage outlet, the upper sliding frame and the lower sliding frame are mutually connected in a sliding way, the upper end of the upper sliding frame is fixedly connected with the upper cover, the lower end of the lower sliding frame is fixedly connected with the lower cover, the first pressure spring and the pressure spring seat are arranged between the upper cover and the lower sliding frame, first vertical guide grooves are formed in the inner walls of the two sides of the vacuum blowoff valve, and the first vertical guide grooves are connected with one side of the upper sliding frame in a sliding mode.

Further perfect, be equipped with first vertical rack in the first vertical guide slot, respectively be equipped with a second vertical guide slot on the outer wall of both sides about the balladeur train down, all be equipped with the second vertical rack in the second vertical guide slot, respectively be equipped with a fretwork groove on the outer wall of both sides about going up the balladeur train, rotate on the fretwork groove and install a pair of intermeshing's gear, the meshing mutually with first vertical rack and second vertical rack respectively of two gears.

Further perfection, the vacuum break valve is equipped with annular boss including setting up the cavity at upper cover middle part on the open-top of cavity, be fixed with the valve gap on the annular boss, and the top of valve gap is equipped with the second control interface, the bottom of cavity is equipped with the valve port that is linked together with vacuum blowoff valve is inside, the inside of cavity is equipped with the rubber diaphragm, and the downside of rubber diaphragm is equipped with the valve plug with valve port complex, is equipped with reset spring between the upside of valve diaphragm and the valve gap, be equipped with the side opening that communicates cavity and external atmosphere on the lateral wall of annular boss.

The improved structure is characterized in that a circular groove is formed in the inner wall of the concave cavity, the valve port is located in the center of the circular groove, a communicating channel is formed between the circular groove and the side hole, and a rubber sealing ring matched with the circular groove is arranged at the bottom of the rubber diaphragm.

Further perfecting, the pneumatic control water inlet valve comprises a water inlet valve body, a valve cylinder, a bag cover and a valve rod, the valve cylinder is arranged at the top of the water inlet valve body, the first control interface is arranged on the side wall of the valve cylinder, a water outlet channel and a water inlet channel which are mutually communicated are arranged in the water inlet valve body, the lower end of the water outlet channel and the outer end of the water inlet channel are respectively communicated with the water outlet interface and the water inlet interface, the upper end of the water outlet channel is provided with a first sleeve communicated with the valve cylinder, the valve rod is arranged in the first sleeve in a sliding way, a bag cover is fixedly arranged on the valve cylinder, a second sleeve is fixedly arranged on the lower side of the bag cover, an inner hole of the second sleeve is in clearance fit with the excircle of the first sleeve, an annular magnet is fixedly sleeved on the second sleeve, an iron core matched with the annular magnet is arranged on the valve rod, a second pressure spring is arranged between the capsule cover and the valve rod, and two ends of the second pressure spring are respectively sleeved on the annular magnet and the first sleeve.

Further perfect, install the filter in the interface of intaking, the filter includes bush and cartridge filter, the bush with the hole threaded connection of the interface of intaking, the bush internal fixation has the filtration disk, the outer end and the bush fixed connection of cartridge filter, the excircle of cartridge filter with the hole clearance fit of the interface of intaking, the inner of cartridge filter are equipped with impurity storage cave, and impurity storage cave rotates between and installs the pivot with filtering the disk, is equipped with circular baffle and helical blade in the pivot, circular baffle and impurity are stored and are equipped with annular feed inlet between the cave, the helical blade outside edge is equipped with the brush hair that the cartridge filter inner wall contacted.

The utility model has the beneficial effects that: the main control execution part inside the closestool body is formed by the pneumatic control water inlet valve, the vacuum blow-down valve and the pneumatic control actuator and is used for realizing blow-down action after the vacuum closestool is used, the vacuum blow-down valve adopts a vacuum pressure difference driving technology to realize the movement of the upper sliding frame and the lower sliding frame, so that the opening and closing of the blow-down valve are realized, and the high-efficiency sealing performance of the vacuum blow-down valve in a closed state is realized; the circulation resistance is minimum, the circulation efficiency is maximum, and the vacuum sewage conveying efficiency is optimal. The pneumatic control actuator does not need to use an electric power supply, can directly control the air pressure change at the pneumatic control interface through the pneumatic control flushing button, has low energy consumption of the whole structure, has the function of delaying flushing adjustment, and has stronger use convenience. The pneumatic control water valve has compact structural design and small occupied space, so that the space utilization and the part configuration during installation are convenient and easy, the investment cost is low, the time consumption of maintenance is small, and the cost is relatively low; the vacuum matching valve core is adopted in the vacuum valve to open and close, so that electric energy required in the traditional structure is avoided, the safety performance is higher, and personal safety accidents cannot be caused; the reliability is high, and the influence of severe environmental factors is not easy to be caused. The blowdown valve has reasonable and compact integral structural design and convenient maintenance, can effectively reduce the noise in the blowdown process and realize the function maximization by matching use of the blowdown valve, and can effectively prolong the service life by virtue of efficient structural design in the process of putting in use.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

FIG. 3 is a schematic view of an interface at the bottom of a pneumatic actuator;

FIG. 4 is a cross-sectional view of the vacuum waste valve;

FIG. 5 is an enlarged schematic view of the structure of the vacuum break valve of FIG. 4;

FIG. 6 is a schematic structural view of a pneumatically controlled water inlet valve;

FIG. 7 is an enlarged view of the filter of FIG. 6;

description of reference numerals: 1. a vacuum blowoff valve, 11, a blowoff pipe joint, 12, a blowoff pipe joint, 121, a vacuum connecting pipe, 122, a three-way pipe, 123, a needle valve component, 124, a check valve component, 125, a flange fixing plate, 13, an L-shaped fixing bracket, 131, a mounting groove, 132, a rotary buckle, 14, a U-shaped fixing bracket, 141, a fixing half-hoop, 142, a movable half-hoop, 15, a first air interface, 16, an upper bracket, 161, a hollow groove, 162, a gear, 17, a lower bracket, 171, a second vertical guide groove, 172, a second vertical rack, 18, a first vertical guide groove, 181, a first vertical rack, 2, an air control, 21, a water inlet interface, 22, a water outlet interface, 23, a first control interface, 24, a water inlet valve body, 241, a water outlet channel, 242, a water inlet channel, 243, a first sleeve, 25, a valve cylinder, 26, a capsule cover, 261, a second sleeve, 262, an annular magnet, 27. the valve comprises a valve rod 271, an iron core 28, a second pressure spring 3, a pneumatic control actuator 31, a vacuum interface 32, a first output interface 33, a second output interface 34, a second air interface 35, a pneumatic control interface 4, a vacuum breaking valve 41, a second control interface 42, a cavity 421, a circular groove 422, a communication channel 43, an annular boss 431, a side hole 44, a valve cover 45, a valve port 46, a rubber diaphragm 461, a valve plug 462, a rubber sealing ring 47, a return spring 5, a filter 51, a lining 52, a filter cartridge 53, a filter disc 54, a impurity storage cavity 55, a rotating shaft 56, a circular baffle 57, an annular feed inlet 58 and a spiral blade.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

referring to figures 1-2: the blowdown valve of the vacuum toilet in the embodiment comprises a vacuum blowdown valve 1, a pneumatic control water inlet valve 2 and a pneumatic control actuator 3, wherein the vacuum blowdown valve 1 is installed on a vacuum blowdown pipeline of the vacuum toilet and used for realizing blowdown, the pneumatic control water inlet valve 2 is installed on a water inlet pipeline of the vacuum toilet and used for realizing flushing, a pneumatic control controller is connected with a pneumatic control flushing button of the vacuum toilet and used for controlling the pneumatic control water inlet valve 2 and the vacuum blowdown valve to be switched on and off, a blowdown inlet and a blowdown outlet are respectively arranged at the left end and the right end of the vacuum blowdown valve 1, and a blowdown pipe connector 11 and a blowdown pipe connector 12 are respectively fixedly installed on the blowdown inlet and the blowdown outlet; the pneumatic control water inlet valve 2 and the pneumatic control actuator 3 are fixedly arranged on the sewage discharge pipe joint 12; be equipped with flange fixed plate 125 on the lateral wall of blowdown coupling 12, the upside of flange fixed plate 125 is equipped with L shape fixed bolster 13 and the U-shaped fixed bolster 14 that is used for respectively fixed mounting gas accuse water intaking valve 2 and gas accuse executor 3, the bottom of L shape fixed bolster 13 is equipped with the mounting hole, and the cooperation of pegging graft of mounting hole and water inlet 21, the lateral part of L shape fixed bolster 13 is equipped with mounting groove 131, and mounting groove 131 pegs graft with the flange plate that sets up on water outlet 22 lateral wall and cooperates, rotatory hasp 132 that is used for locking water outlet 22 is still installed at the top of mounting groove 131, and rotatory hasp 132 can be fixed water outlet 22 on the mounting groove 131, the top of L shape fixed bolster 13 is equipped with detachable clamp structure, and clamp structure includes fixed half clamp 141 and activity half clamp 142, and the both ends of fixed half clamp 141 and the both ends of activity half clamp 142 buckle respectively, the pneumatic control actuator 3 above the vacuum blowoff valve 1 can be conveniently disassembled and assembled through the clamp structure, the blowoff pipe joint 12, the flange fixing plate 125, the L-shaped fixing support 13, the U-shaped fixing support 14, the fixed half clamp 141, the vacuum connecting pipeline 121 and the three-way pipe 122 are of an integrated forming structure, production and manufacturing are convenient, and the overall assembling efficiency of the assembled blowoff valve is improved. The pneumatic control water inlet valve 2, the pneumatic control actuator 3 and the vacuum blow-down valve 1 can be quickly disassembled and assembled, and the cost of replacing and maintaining the blow-down valve accessories is effectively reduced.

The top of the vacuum blowoff valve 1 is provided with a vacuum breaker valve 4, the vacuum breaker valve 4 is provided with a second control interface 41, the side wall of the vacuum blowoff valve 1 is provided with a first air interface 15, and the blow-off pipe joint 12 is provided with a vacuum connecting pipe 121 the lower end of which is communicated with a blow-off port;

the pneumatic control water inlet valve 2 is provided with a water inlet interface 21, a water outlet interface 22 and a first control interface 23;

as shown in fig. 3, a vacuum interface 31, a first output interface 32, a second output interface 33, a second air interface 34 and a pneumatic interface 35 are arranged on the pneumatic actuator 3, and an execution control assembly which is used for intermittently communicating the first output interface 32 and the second output interface 33 with the vacuum interface 31 and the second air interface 34 through the air pressure change of the pneumatic interface 35 is arranged in the pneumatic actuator 3; the pneumatically controlled actuator 3 may be a model 5775500 EVAC flush actuator in finland. The pneumatic control controller is of an integrated structure, parts of the integrated structure are few, the reliability is higher, the pneumatic control button is triggered to realize air pressure change at the pneumatic control interface, the control component is executed to move along the axial direction, and therefore the on-off of the pneumatic control water inlet valve connected with the first output interface and the on-off of the vacuum blowdown valve connected with the second output interface are controlled, and the functionality is strong.

A three-way pipe 122 is arranged between the vacuum connector 31 and the middle part of the vacuum connecting pipeline 121 and the first air connector 15, two pipelines of the three-way pipe 122 are respectively connected with the vacuum connector 31 and the first air connector 15, the third pipeline of the three-way pipe 122 is communicated with the middle part of the vacuum connecting pipeline 121 and is provided with a needle valve assembly 123, the first output connector 32 is connected with the first control connector 23 through an air pipe, the second output connector 33 is connected with the second control connector 41 through an air pipe, the second air connector 34 is connected with the upper end of the vacuum connecting pipeline 121 through a one-way valve assembly 124, and the air control connector 35 is connected with an air control flushing button through an air pipe. The vacuum connecting pipeline 121, the three-way pipe 122 and the sewage pipe joint 12 are of an integrated forming structure. The operating principle of the drain valve is as follows: after a user urinates above the vacuum toilet, the user can press the pneumatic control flushing button to flush, when the pneumatic control flushing button is pressed, a high-pressure gas can be input into the pneumatic control interface 35 on the pneumatic control actuator 3 to drive the execution control assembly in the pneumatic control actuator 3 to be temporarily opened, the first output interface 32 is firstly communicated with the vacuum interface 31 and the second air interface 34, the vacuum sewage discharge pipeline enables the first output interface 32 and the first air interface 15 to generate negative pressure through the vacuum connecting pipeline 121, then the first control interface 23 controls the pneumatic control water inlet valve 2 to be opened to communicate the water inlet interface 21 and the water outlet interface 22 to flush, the second air interface 34 enables the interior of the vacuum sewage discharge valve 1 to generate a vacuum environment through the three-way pipe 122 and the first air interface 15, the vacuum sewage discharge valve 1 is opened to discharge sewage, and then when the second output interface 33 is communicated with the vacuum interface 31 and the second air interface 34, the second output interface 33 opens the vacuum breaker valve 4 through the second control interface 41, the outside air enters the inside of the vacuum breaker valve 4 and the pneumatic control water inlet valve 2, the inside of the vacuum breaker valve 4 and the pneumatic control water inlet valve 2 are closed, and finally, after the execution control component in the pneumatic control actuator 3 is closed in a delayed manner, the vacuum interface 31 and the second air interface 34 are disconnected.

As shown in fig. 4, an upper cover and a lower cover are respectively arranged at the top and the bottom of the vacuum blowoff valve 1, an upper film bowl and a lower film bowl are respectively arranged between the upper cover and the vacuum blowoff valve 1, and between the lower cover and the vacuum blowoff valve 1, a rubber tube and an automatic rubber tube clamping device are arranged inside the vacuum blowoff valve 1, the automatic rubber tube clamping device comprises a first pressure spring, a pressure spring seat, an upper sliding frame 16 and a lower sliding frame 17 which are of a U-shaped structure, the rubber tube is positioned between the upper sliding frame 16 and the lower sliding frame 17, two ends of the rubber tube are respectively connected with a sewage inlet and a sewage outlet, the upper sliding frame 16 and the lower sliding frame 17 are mutually connected in a sliding manner, the upper end of the upper sliding frame 16 is fixedly connected with the upper cover, the lower end of the lower sliding frame 17 is fixedly connected with the lower cover, the first pressure spring and the pressure spring seat are arranged between the upper cover and the lower sliding frame 17, first vertical guide grooves 18 are respectively arranged on the inner walls at two sides of the vacuum blowoff valve 1, the first vertical guide groove 18 is connected with one side of the upper sliding frame 16 in a sliding mode, and the first vertical guide groove 18 plays a role in limiting and guiding the upper sliding frame 16 and the lower sliding frame 17, so that the upper sliding frame and the lower sliding frame can move up and down more stably and reliably. When the vacuum blowoff valve 1 is vacuumized, the first pressure spring is compressed, the upper film bowl and the lower film bowl deform, the upper sliding frame 16 moves downwards and the lower sliding frame 17 moves upwards, the rubber pipe is opened, the sewage inlet and the sewage outlet are communicated, and vacuum blowoff is realized.

Be equipped with first vertical rack 181 in the first vertical guide slot 18, respectively be equipped with a second vertical guide slot 171 on the outer wall of the left and right sides of lower balladeur train 17, all be equipped with second vertical rack 172 in the second vertical guide slot 171, respectively be equipped with a fretwork groove 161 on the outer wall of the left and right sides of going up balladeur train 16, rotate on the fretwork groove 161 and install a pair of intermeshing's gear 162, two gear 162 respectively with first vertical rack 181 and second vertical rack 172 mesh mutually. Through the structure of the gear and the rack, the synchronous opening and closing actions of the upper sliding frame 16 and the lower sliding frame 17 can be realized, the damage to the rubber pipe is reduced, and the service life of the vacuum blowoff valve 1 is prolonged.

As shown in fig. 5, the vacuum breaker valve 4 includes a cavity 42 disposed in the middle of the upper cover, an annular boss 43 is disposed on the top opening of the cavity 42, a valve cover 44 is fixed on the annular boss 43, the second control port 41 is disposed on the top of the valve cover 44, a valve port 45 communicated with the inside of the vacuum waste valve 1 is disposed at the bottom of the cavity 42, a rubber diaphragm 46 is disposed inside the cavity 42, a valve plug 461 engaged with the valve port 45 is disposed at the lower side of the rubber diaphragm 46, a return spring 47 is disposed between the upper side of the valve diaphragm and the valve cover 44, and a side hole 431 communicating the cavity 42 with the outside atmosphere is disposed on the side wall of the annular boss 43. When the second control port 41 is under negative pressure, the rubber diaphragm 46 drives the valve plug 461 to move upwards to open the valve port 45, and the valve port 45 is communicated with the side hole 431, so that the vacuum environment inside the vacuum blowoff valve 1 is broken and closed.

The inner wall of the concave cavity 42 is provided with a circular groove 421, the valve port 45 is positioned in the center of the circular groove 421, a communicating channel 422 is arranged between the circular groove 421 and the side hole 431, and the bottom of the rubber diaphragm 46 is provided with a rubber sealing ring 462 matched with the circular groove 421, so that the sealing performance when the rubber diaphragm 46 and the valve port are matched and closed can be enhanced, the top of the vacuum blowoff valve 1 is prevented from leaking air, and the sensitivity when the vacuum blowoff valve 1 is opened is improved.

The pneumatic control water inlet valve 2 comprises a water inlet valve body 24, a valve cylinder 25, a bag cover 26 and a valve rod 27, the valve cylinder 25 is arranged at the top of the water inlet valve body 24, the first control interface 23 is arranged on the side wall of the valve cylinder 25, a water outlet channel 241 and a water inlet channel 242 which are communicated with each other are arranged inside the water inlet valve body 24, the water outlet interface 22 and the water inlet interface 21 are respectively communicated with the lower end of the water outlet channel 241 and the outer end of the water inlet channel 242, a first sleeve 243 communicated with the valve cylinder 25 is arranged at the upper end of the water outlet channel 241, the valve rod 27 is slidably arranged in the first sleeve 243, the bag cover 26 is fixedly arranged on the valve cylinder 25, a second sleeve 261 is fixedly arranged on the lower side of the bag cover 26, the inner hole of the second sleeve 261 is in clearance fit with the outer circle of the first sleeve 243, an annular magnet 262 is fixedly sleeved on the second sleeve 261, an iron core 271 matched with the annular magnet 262 is arranged on the valve rod 27, a second compression spring 28 is arranged between the capsule cover 26 and the valve rod 27, and two ends of the second compression spring 28 are respectively sleeved on the annular magnet 262 and the first sleeve 243. When negative pressure is applied to the first control interface 23, the capsule cover 26 is pressed to deform, the annular magnet 262 moves downwards to attract the iron core 271 and drive the valve rod 27 to open, the water outlet interface 22 is communicated with the water inlet interface 21 to flush water, when positive pressure is applied to the first control interface 23, the capsule cover 26 and the annular magnet 262 move upwards under the action of the second pressure spring 28 to reset, and the valve rod 27 resets under the action of the spring.

As shown in fig. 6-7, install filter 5 in the interface 21 of intaking, filter 5 includes bush 51 and cartridge filter 52, bush 51 with the hole threaded connection of interface 21 of intaking, bush 51 internal fixation has the filtration disk 53, the outer end and the bush 51 fixed connection of cartridge filter 52, the excircle of cartridge filter 52 with the hole clearance fit of interface 21 of intaking, the inner of cartridge filter 52 is equipped with impurity storage cave 54, rotates between impurity storage cave 54 and the filtration disk 53 and installs pivot 55, is equipped with circular baffle 56 and helical blade 58 on the pivot 55, be equipped with annular feed inlet 57 between circular baffle 56 and the impurity storage cave 54, helical blade 58 is equipped with the brush hair that the outer edge of a circle 52 inner wall contacted. The water that inserts into water inlet interface 21 can carry out further edulcoration filtration through filter 5 before reaching valve rod 27, gets rid of tiny impurity, prolongs valve rod 27's life. It is big than the net hole diameter on the cartridge filter 52 between the mesh on the filtration disk 53, the particulate matter that can the major diameter of prefilter gets into water inlet interface 21, cartridge filter 52 can further filter rivers, get rid of tiny granule, circular baffle 56 can protect cartridge filter 52 rear end, make rivers flow out from cartridge filter 52 side, can drive helical blade 58 on the pivot 55 and rotate when rivers pass through, the brush hair cleans cartridge filter 52's inner wall on helical blade 58, export the rear end of cartridge filter 52 with the small granule impurity brush, it stores to reach impurity storage cave 54 through annular feed inlet 57.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (8)

1. The utility model provides a blowoff valve of vacuum toilet, includes vacuum blowoff valve (1), gas accuse water intaking valve (2) and pneumatic actuator (3), install on vacuum blowoff pipe of vacuum toilet in vacuum blowoff valve (1) for realize the blowdown, gas accuse water intaking valve (2) are installed on the inlet tube way of vacuum toilet, are used for realizing washing by water, the gas accuse controller connects the gas accuse of vacuum toilet and washes by water the button for control gas accuse water intaking valve (2) and vacuum blowoff valve break-make, its characterized in that: the left end and the right end of the vacuum blowoff valve (1) are respectively provided with a sewage inlet and a sewage outlet, and a sewage inlet pipe joint (11) and a sewage outlet pipe joint (12) are respectively and fixedly arranged on the sewage inlet and the sewage outlet; the pneumatic control water inlet valve (2) and the pneumatic control actuator (3) are fixedly installed on the sewage discharge pipe joint (12), a flange fixing plate (125) is arranged on the side wall of the sewage discharge pipe joint (12), an L-shaped fixing support (13) and a U-shaped fixing support (14) which are used for respectively and fixedly installing the pneumatic control water inlet valve (2) and the pneumatic control actuator (3) are arranged on the upper side of the flange fixing plate (125), a mounting hole is formed in the bottom of the L-shaped fixing support (13), the mounting hole is in inserting and matching with the water inlet interface (21), a mounting groove (131) is formed in the side portion of the L-shaped fixing support (13), the mounting groove (131) is in inserting and matching with a flange plate arranged on the side wall of the water outlet interface (22), a rotary buckle (132) used for locking the water outlet interface (22) is further installed at the top of the mounting groove (131), and a detachable hoop structure is arranged at the top of the L-shaped fixing support (13), the clamp structure comprises a fixed half clamp (141) and a movable half clamp (142), wherein the two ends of the fixed half clamp (141) and the two ends of the movable half clamp (142) are respectively connected in a buckling mode, and the sewage pipe joint (12), the flange fixing plate (125), the L-shaped fixing support (13), the U-shaped fixing support (14) and the fixed half clamp (141) are of an integrated forming structure.

2. The waste valve for a vacuum toilet as claimed in claim 1, wherein: the top of the vacuum blow-down valve (1) is provided with a vacuum breaking valve (4), the vacuum breaking valve (4) is provided with a second control interface (41), the side wall of the vacuum blow-down valve (1) is provided with a first air interface (15), the blow-down pipe joint (12) is provided with a vacuum connecting pipeline (121) the lower end of which is communicated with a blow-down outlet,

the pneumatic control water inlet valve (2) is provided with a water inlet interface (21), a water outlet interface (22) and a first control interface (23);

the pneumatic control actuator (3) is provided with a vacuum interface (31), a first output interface (32), a second output interface (33), a second air interface (34) and a pneumatic control interface (35);

a three-way pipe (122) is arranged between the vacuum interface (31), the middle part of the vacuum connecting pipeline (121) and the first air interface (15), two pipelines of the three-way pipe (122) are respectively connected with the vacuum interface (31) and the first air interface (15), the third pipeline of the three-way pipe (122) is communicated with the middle part of the vacuum connecting pipeline (121) and is provided with a needle valve component (123), the first output interface (32) is connected with the first control interface (23) through an air pipe, the second output interface (33) is connected with a second control interface (41) through an air pipe, the second air interface (34) is connected with the upper end of the vacuum connecting pipeline (121) through a one-way valve assembly (124), the pneumatic control interface (35) is connected with a pneumatic control flushing button through an air pipe, and the vacuum connecting pipeline (121), the three-way pipe (122) and the sewage discharge pipe joint (12) are of an integrated forming structure.

3. A waste valve for a vacuum toilet as claimed in claim 2, wherein: the vacuum sewage valve is characterized in that the top and the bottom of the vacuum sewage valve (1) are respectively provided with an upper cover and a lower cover, an upper film bowl and a lower film bowl are respectively arranged between the upper cover and the vacuum sewage valve (1), an upper film bowl and a lower film bowl are respectively arranged between the lower cover and the vacuum sewage valve (1), a rubber pipe and an automatic rubber pipe clamping device are arranged inside the vacuum sewage valve (1), the automatic rubber pipe clamping device comprises a first pressure spring, a pressure spring seat and an upper sliding frame (16) and a lower sliding frame (17) which are of a U-shaped structure, the rubber pipe is positioned between the upper sliding frame (16) and the lower sliding frame (17), a sewage inlet and a sewage outlet are respectively connected at two ends of the rubber pipe, the upper sliding frame (16) and the lower sliding frame (17) are mutually connected in a sliding manner, the upper end of the upper sliding frame (16) is fixedly connected with the upper cover, the lower end of the lower sliding frame (17) is fixedly connected with the lower cover, the first pressure spring and the pressure spring seat are arranged between the upper cover and the lower sliding frame (17), first vertical guide grooves (18) are respectively arranged on the inner walls of two sides of the vacuum sewage valve (1), the first vertical guide groove (18) is connected with one side of the upper sliding frame (16) in a sliding way.

4. A waste valve for a vacuum toilet as claimed in claim 3, wherein: be equipped with first vertical rack (181) in first vertical guide slot (18), respectively be equipped with a second on the left and right sides outer wall of balladeur train (17) down and erect guide slot (171), all be equipped with second vertical rack (172) in the second vertical guide slot (171), respectively be equipped with a fretwork groove (161) on the left and right sides outer wall of going up balladeur train (16), rotate on fretwork groove (161) and install a pair of intermeshing's gear (162), the meshing mutually of the perpendicular rack of first vertical rack (181) and second (172) respectively of two gear (162).

5. A waste valve for a vacuum toilet as claimed in claim 3, wherein: the vacuum break valve (4) comprises a cavity (42) arranged in the middle of an upper cover, an annular boss (43) is arranged on an opening at the top of the cavity (42), a valve cover (44) is fixed on the annular boss (43), the second control interface (41) is arranged at the top of the valve cover (44), a valve port (45) communicated with the inside of the vacuum blowdown valve (1) is arranged at the bottom of the cavity (42), a rubber diaphragm (46) is arranged inside the cavity (42), a valve plug (461) matched with the valve port (45) is arranged on the lower side of the rubber diaphragm (46), a return spring (47) is arranged between the upper side of the valve diaphragm and the valve cover (44), and a side hole (431) for communicating the cavity (42) with the outside atmosphere is formed in the side wall of the annular boss (43).

6. The waste valve for a vacuum toilet bowl as set forth in claim 5, wherein: a circular groove (421) is formed in the inner wall of the concave cavity (42), the valve port (45) is located in the center of the circular groove (421), a communicating channel (422) is formed between the circular groove (421) and the side hole (431), and a rubber sealing ring (462) matched with the circular groove (421) is arranged at the bottom of the rubber diaphragm (46).

7. A waste valve for a vacuum toilet as claimed in claim 2, wherein: the pneumatic control water inlet valve (2) comprises a water inlet valve body (24), a valve cylinder (25), a bag cover (26) and a valve rod (27), the valve cylinder (25) is arranged at the top of the water inlet valve body (24), the first control interface (23) is arranged on the side wall of the valve cylinder (25), a water outlet channel (241) and a water inlet channel (242) which are communicated with each other are arranged inside the water inlet valve body (24), the lower end of the water outlet channel (241) and the outer end of the water inlet channel (242) are respectively communicated with the water outlet interface (22) and the water inlet interface (21), a first sleeve (243) communicated with the valve cylinder (25) is arranged at the upper end of the water outlet channel (241), the valve rod (27) is arranged in the first sleeve (243) in a sliding mode, the bag cover (26) is fixedly arranged on the valve cylinder (25), a second sleeve (261) is fixedly arranged at the lower side of the bag cover (26), and the inner hole of the second sleeve (261) is in clearance fit with the outer circle of the first sleeve (243), an annular magnet (262) is fixedly sleeved on the second sleeve (261), an iron core (271) matched with the annular magnet (262) is arranged on the valve rod (27), a second pressure spring (28) is arranged between the capsule cover (26) and the valve rod (27), and two ends of the second pressure spring (28) are respectively sleeved on the annular magnet (262) and the first sleeve (243).

8. The waste valve for a vacuum toilet as claimed in claim 7, wherein: a filter (5) is arranged in the water inlet interface (21), the filter (5) comprises a lining (51) and a filter cylinder (52), the bushing (51) is in threaded connection with an inner hole of the water inlet interface (21), a filtering disc (53) is fixed in the bushing (51), the outer end of the filter cartridge (52) is fixedly connected with the bushing (51), the excircle of the filter cartridge (52) is in clearance fit with the inner hole of the water inlet connector (21), the inner end of the filter cartridge (52) is provided with an impurity storage hole (54), a rotating shaft (55) is rotatably arranged between the impurity storage hole (54) and the filter disc (53), the rotating shaft (55) is provided with a circular baffle plate (56) and a helical blade (58), an annular feed inlet (57) is arranged between the circular baffle (56) and the impurity storage cavity (54), the outer side edge of the spiral blade (58) is provided with bristles contacted with the inner wall of the filter cylinder (52).

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