CN214574423U - Split type full-pneumatic control vacuum toilet - Google Patents

Abstract

The utility model relates to a split type full pneumatic control vacuum closestool, which comprises a closestool body, a pneumatic control water valve which is arranged at the inner side of the closestool body and is used for realizing flushing, a vacuum blowoff valve which is used for realizing blowdown, a pneumatic control controller which is used for controlling the pneumatic control water valve and the vacuum blowoff valve to be switched on and off, and a pneumatic control button which is arranged at the outer side of the closestool body and is used for driving the pneumatic control controller to execute work; a toilet cavity is arranged in the toilet body and communicated with a water inlet pipe and a sewage discharge pipe; the pneumatic control water valve is arranged on the water inlet pipe, the vacuum blow-down valve is arranged on the blow-down pipe, and a control pipeline is communicated between the pneumatic control controller and the pneumatic control water valve as well as between the pneumatic control controller and the vacuum blow-down valve; the utility model is used for realize that vacuum closestool uses the blowdown action after accomplishing, each structural design is reasonable compact, uses through its cooperation, can effectively reduce the noise in the blowdown process to realize the function maximize, in putting in the use, high-efficient structural design also can effectively improve life.

Description

Split type full-pneumatic control vacuum toilet

Technical Field

The utility model relates to the technical field of vacuum sewage collection, transportation and treatment, wherein the vacuum sewage collection technology refers to a front-end device or a product for collecting sewage at a sewage source, including but not limited to various kitchens (such as a toilet, a urinal, a shower room, a bathtub and the like) and sanitary products (such as a vegetable washing tank, a dish washing machine and the like); the vacuum sewage conveying technology is related to the technology of efficiently conveying sewage collected by a front-end device or a product to sewage post-treatment equipment; vacuum sewage treatment technique indicates aftertreatment equipment or device, and the primary function is to concentrate the sewage of collecting and carry out solid-liquid separation and purification, and organic fertilizer can be made into to wherein solid, and sewage realizes green emission after MBR membrane technology filtration purification, the utility model discloses then in particular to split type full gas accuse control's vacuum closestool.

Background

In the technical field of vacuum domestic sewage collection, transportation and treatment, vacuum domestic sewage collection is the foremost technology; the basic realization principle is as follows: first, the sewage collection inlet line (or blowdown inlet line) in the vacuum sewage delivery system is connected to various sewage front end collection devices, including but not limited to various kitchens (such as toilets, urinals, shower stalls, tubs, etc.) and sanitary products (such as sink basins, dishwashers, etc.); secondly, the vacuum pump set generates vacuum in the vacuum sewage conveying system; finally, in the working process of the sewage front-end collecting device, after the vacuum sewage discharge valve is connected, the pressure difference between the external atmospheric pressure and the vacuum value in the pipeline in the vacuum sewage conveying system is acted on the sewage and mixed with air to realize the turbulent conveying of the sewage into the sewage collecting inlet pipeline (or the sewage discharge inlet pipeline).

Over the past 30 years, researchers in the countries of the europe and the america have tried methods and techniques to reduce the noise of the vacuum toilet and related products in the vacuum collection system, and although the accumulation time of related technologies in the country is short, they have made continuous breakthroughs in the field of vacuum waste discharge.

At present, the known technical solutions (refer to 1996-US 5515554,1994-5317763, etc.) are to adopt an airtight toilet cover or a toilet cover with good noise absorption, or add a separate auxiliary air supply pipeline on the vacuum blowoff valve; although this solution is relatively simple and low cost, the noise reduction techniques and methods have limited effectiveness in reducing noise, only by about 1-3 db; it is worth noting that while testing the drainage performance of vacuum toilets, researchers have found that noise limits can be significantly reduced by reducing the on-off time of the vacuum drain valve; according to the invention, a technical method or solution is proposed for controlling or operating a vacuum waste valve in a product such as a vacuum toilet; the technical scheme is characterized in that the opening time of the vacuum blowoff valve is controlled below 0.75 second, and the closing time of the vacuum blowoff valve is controlled below 0.75 second; at the same time, an operating or control device is proposed to take into account the above-mentioned basic operating speed requirements; the structure of the device comprises three operating valves, wherein the three operating valves are controlled by a cam device driven by a piston/cylinder device; wherein, under the triggering action of a starting device, the first operating valve communicates the pipeline communicated with the vacuum source to the cylinder chamber in the piston/cylinder device through the corresponding supply chamber, pipeline and storage chamber; the second operation valve communicates the storage chamber with the driving unit through a corresponding line so as to drive the vacuum sewer valve; the third operating valve is used for vacuum toilet flushing pipeline control.

Furthermore, the known technical solutions (see US6128789A, EP0778432B1) use either an airtight toilet lid or a toilet lid with good noise absorption, and also use a vacuum waste valve with active ventilation, while the researchers have also effectively used the known technical experience that the noise limit can be significantly reduced by reducing the on-off time of the vacuum waste valve; the technical scheme is characterized in that the opening time of the vacuum blowoff valve is controlled below 0.25 second, and the closing time of the vacuum blowoff valve is controlled below 0.40 second; although this solution is relatively simple and low cost, the noise reduction technique and method is relatively effective in reducing noise, by about 15 db; at the same time, an operating or control device is also proposed in order to meet the above-mentioned basic operating speed requirements; the structural composition of the device also comprises three operating valves, which are also controlled by a cam device driven by a piston/cylinder device, which is different from the previous technical solutions.

Synthesize above-mentioned can know, there is noise, functional poor, the life low grade correlation problem that leads to unreasonable and the interior structural design about the vacuum closestool among the prior art, consequently the utility model discloses a split type full gas accuse control's vacuum closestool has been developed for solve the problem that exists among the prior art, through the retrieval, not discover with the utility model discloses same or similar technical scheme.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides a split type full pneumatic control vacuum closestool to solve among the prior art vacuum closestool and have noise, functional poor, life low relevant problem such as because the interior structural design is unreasonable and lead to.

The technical scheme of the utility model is that: a split type full pneumatic control vacuum closestool comprises a closestool body, a pneumatic control water valve, a vacuum blowdown valve, a pneumatic control controller and a pneumatic control button, wherein the pneumatic control water valve is arranged on the inner side of the closestool body and used for flushing, the vacuum blowdown valve is used for draining, the pneumatic control controller is used for controlling the pneumatic control water valve and the vacuum blowdown valve to be switched on and off, and the pneumatic control button is arranged on the outer side of the closestool body and used for driving the pneumatic control controller to work; a toilet cavity is arranged in the toilet body and communicated with a water inlet pipe and a sewage discharge pipe; the pneumatic control water valve is installed on the water inlet pipe, the vacuum blow-down valve is installed on the blow-down pipe, and a control pipeline is communicated among the pneumatic control controller, the pneumatic control water valve and the vacuum blow-down valve.

Preferably, the outer side end of the pneumatic control water valve is provided with a water inlet, a water outlet and a first control interface, and a first valve core assembly for controlling the on-off of the water inlet and the water outlet is arranged inside the pneumatic control water valve; the outer side end of the vacuum sewage discharge valve is provided with a sewage inlet, a sewage outlet, a vacuum interface A, an air interface A and a second control interface, and a second valve core assembly for controlling the on-off of the sewage inlet and the sewage outlet is arranged in the vacuum sewage discharge valve; the external end of the pneumatic control controller is provided with a vacuum interface B, an air interface B, a first output interface, a second output interface and a pneumatic control interface B, and an execution control component which is used for realizing intermittent communication between the first output interface and the second output interface and the vacuum interface B and the air interface B through the air pressure change of the pneumatic control interface B is arranged in the pneumatic control controller; the outer side end of the air control button is provided with an air control interface A; the control pipeline is used for respectively communicating the pneumatic control interface A with the pneumatic control interface B, the first control interface with the first output interface, the second control interface with the second output interface, the vacuum interface A with the vacuum interface B, and the air interface A with the air interface B.

Preferably, a water valve chamber communicated with the water inlet, the water outlet and the first control interface is arranged in the pneumatic control water valve, the first valve core assembly is arranged in the water valve chamber and comprises a first valve rod for realizing the on-off of the water inlet through axial movement, a first corrugated diaphragm fixedly connected with the first valve rod and a first reset spring for realizing the reset of the first valve rod, the upper part of the first corrugated diaphragm is communicated with the first control interface, and the lower part of the first corrugated diaphragm is communicated with the water inlet and the water outlet; a blowoff valve chamber is arranged in the vacuum blowoff valve, a communicating flow passage is formed between the sewage inlet and the sewage outlet, the second valve core assembly is arranged in the blowoff valve chamber and extends into the communicating flow passage, the second valve core assembly comprises a second valve rod for realizing the on-off of the communicating flow passage through axial movement, a sealing guide plate fixedly connected with the second valve rod and a second reset spring for realizing the reset of the second valve rod, a plug is fixed on one side of the second valve rod, which is deviated to the communicating flow passage, the upper part of the sealing guide plate is communicated with the second control interface, and the lower part of the sealing guide plate is communicated with the air interface; the pneumatic control controller is internally provided with an installation cavity, the side edge of the interior of the pneumatic control controller is provided with an air flow passage, a vacuum flow passage A and a vacuum flow passage B which are communicated with the installation cavity, the pneumatic control interface B is communicated with the upper end part of the installation cavity, the vacuum interface B is communicated with the vacuum flow passage A and the vacuum flow passage B, the air interface B is communicated with the air flow passage, and the first output interface and the second output interface are communicated with the lower end part of the installation cavity; the execution control assembly comprises an upper valve core assembly, a middle valve core assembly and a lower valve core assembly which are arranged in the installation cavity; the pneumatic control button is internally provided with a button cavity which is communicated with the pneumatic control interface A and can realize the change of internal air pressure.

Preferably, the upper end of the water valve chamber is provided with an upper inner hole for the first valve rod to be inserted, matched and moved, the lower end of the water valve chamber is provided with a lower inner hole for the first valve rod to move downwards and be blocked, the side edge of the water valve chamber is provided with a side flow passage communicated with the upper inner hole and the lower inner hole, and the lower inner hole is communicated with the water inlet; the cross section areas of the upper end surface and the lower end surface of the first valve rod are the same.

Preferably, an inner valve core assembly used for realizing sealing between the second valve core assembly and the inner wall of the communicating flow channel is arranged on one side of the interior of the second valve rod, which is deviated to the communicating flow channel, and the inner valve core assembly comprises an inner valve rod, a pair of sliding blocks and a special-shaped rubber sealing ring which are sequentially arranged from top to bottom; the inner valve rod divides the interior of the second valve rod into an upper inner chamber and a lower inner chamber, and a negative pressure pipeline extending to the side wall and communicated with the upper inner chamber and a vacuum pipeline communicated with the lower inner chamber are arranged in the second valve rod; the negative pressure pipeline is communicated with one side of the sewage inlet, the vacuum pipeline is communicated with one side of the sewage outlet, and the lifting motion of the inner valve rod is realized through the change of pressure difference; the special-shaped rubber sealing ring is embedded in the outer wall of the plug, and is pushed by the inner valve rod and the pair of sliding blocks to realize sealing contact with the inner wall of the communicating flow channel.

Preferably, the mounting chamber comprises a first cavity, a second cavity, a third cavity and a fourth cavity which are sequentially arranged from top to bottom; a first inner hole is formed in the upper end of the first cavity, a second inner hole is formed between the first cavity and the second cavity, a third inner hole is formed between the second cavity and the third cavity, and a fourth inner hole is formed between the third cavity and the fourth cavity; the upper valve core assembly is arranged in the first inner hole and the first cavity and comprises an upper valve rod and a pressing plate which are arranged in an integrated structure and a third reset spring arranged below the pressing plate; the upper valve rod is inserted and matched in the first inner hole, and the pressure plate is arranged in the first cavity and divides the first cavity into a first upper cavity and a first lower cavity; the middle valve core assembly comprises a middle valve rod and a fourth return spring, the middle valve rod is inserted and matched in the second inner hole, and the upper end and the lower end of the middle valve rod respectively extend into the first cavity and the second cavity; the lower valve core assembly comprises a lower valve rod, a second corrugated diaphragm fixed at the upper end part of the lower valve rod and a fifth return spring; the lower valve rod penetrates through the third inner hole, the upper end and the lower end of the lower valve rod respectively extend into the second cavity and the third cavity, and the lower end part of the lower valve rod is moved to realize the connection and disconnection of the fourth inner hole; the second corrugated diaphragm is arranged in the second cavity and divides the second cavity into a second upper cavity and a second lower cavity; the air flow channel is communicated with the first upper cavity, the first lower cavity and the fourth cavity; the vacuum flow passage A is communicated with the vacuum interface and the second lower cavity, and the vacuum flow passage B is communicated with the second lower cavity and the side wall of the second inner hole; the pneumatic control interface B is communicated with the first inner hole, and the first output interface and the second output interface are communicated with the third cavity.

Preferably, a gap a for realizing the communication between the first lower chamber and the second upper chamber when the middle valve rod moves to be aligned with the second inner hole is arranged on the side wall of the upper end part of the middle valve rod, and a vent hole for realizing the communication between the second upper chamber and the vacuum flow passage B when the middle valve rod moves to be aligned with the side wall of the second inner hole is arranged on the lower end part of the middle valve rod; and a gap B for realizing the communication between the second lower cavity and the third cavity when the lower valve rod moves to be aligned with the third inner hole is arranged on the side wall of the lower valve rod.

Preferably, a needle valve assembly for controlling the flow rate of the gas is arranged in the vacuum flow channel B along the horizontal direction at one end biased to the second lower chamber.

Preferably, the pneumatic control button comprises a base, a shell, a button cap and a sixth reset spring, wherein the base, the shell, the button cap and the sixth reset spring are coaxially and fixedly arranged in sequence; the base, the shell and the button cap together form a button cavity.

Preferably, the pneumatic control button is mounted on the side wall of the rear side end of the toilet body or a wall close to the mounting position of the toilet body.

Compared with the prior art, the utility model has the advantages that:

(1) the utility model discloses a gas accuse water valve, vacuum blowoff valve, gas accuse controller and gas accuse button constitute the inside control executive component of staving for realize that vacuum toilet uses the blowdown action after accomplishing, each structural design is reasonable compact, uses through its cooperation, can effectively reduce the noise in the blowdown process, and realize the function maximize, in putting in the use, high-efficient structural design also can effectively improve life.

(2) 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 more convenient and easier, when the pneumatic control water valve is put into a vacuum closestool for use, only one pneumatic control water valve needs to be configured, a two-position two-way electromagnetic valve in the traditional structure does not need to be configured, the investment cost is low, the maintenance time consumption is less, and the cost is relatively low; the first valve core assembly is adopted to open and close the interior of the valve body, so that electric energy required in the traditional structure is avoided, the safety performance is higher, and personal safety accidents cannot be caused; the pneumatic control water valve has high reliability, and cannot be influenced by severe environmental factors, such as sudden natural disasters and sudden power failure, so that the pneumatic control water valve can be ensured to normally work.

(3) The vacuum blowoff valve adopts a differential pressure driving technology to realize the movement of the second valve core component and the inner valve core component, so as to realize the opening and closing of the vacuum blowoff valve and the high-efficiency sealing performance of the vacuum blowoff valve in a closed state; the inside communicating flow channel for sewage discharge adopts a streamline design, the flow resistance is minimum, the flow efficiency is maximum, and the vacuum sewage conveying efficiency is optimal.

(4) The pneumatic control controller adopts the pneumatic control button connected with the pneumatic control interface B to realize split triggering, the pneumatic control button can be installed at any place near the vacuum closestool, such as the side wall of the rear side end of the closestool body or the wall near the vacuum closestool body, meanwhile, the pneumatic control controller is of an integrated structure, the parts of the integrated structure are few, the reliability is higher, the pneumatic control interface B is triggered to realize the air pressure change, the execution control assembly moves along the axial direction, and further the first output interface and the second output interface are controlled to be intermittently communicated with the vacuum interface B and the air interface B, namely the first output interface and the second output interface are controlled to intermittently introduce air or form vacuum, so that the on-off of the pneumatic control water valve connected with the first output interface and the on-off of the vacuum blow-down valve connected with the second output interface are controlled, and the functionality is strong.

(5) Gas accuse controller need not use power supply, for example, group battery, solar panel, cable and transformer etc. and the atmospheric pressure change of direct department through gas accuse interface B can realize controlling, and overall structure energy consumption is low, and inside adoption needle valve assembly realizes the time delay bath regulatory function, compares in traditional case damping structure, and it adjusts the damping and must dismantle the back reassembling and just can realize adjusting, the utility model discloses it is direct need not to dismantle through needle valve assembly and can adjust, and convenient to use nature is stronger.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a schematic view of an appearance structure of a split type full pneumatic control vacuum toilet of the present invention;

FIG. 2 is a schematic view of the mounting structure of the pneumatic control water valve, the vacuum blowoff valve, the pneumatic control controller and the pneumatic control button of the present invention;

FIG. 3 is a schematic diagram of the distribution structure of the pneumatic control water valve, the vacuum blowoff valve, the pneumatic control controller and the pneumatic control button of the present invention;

fig. 4 is a side view of the split type full pneumatic control vacuum toilet of the present invention;

FIG. 5 is a schematic structural view of the pneumatic control water valve, the vacuum blowoff valve, the pneumatic control controller and the pneumatic control button of the present invention communicated through the control pipeline;

FIG. 6 is a side view of the toilet body of the present invention;

fig. 7 is a schematic view of an appearance structure of the pneumatic control water valve of the present invention;

fig. 8 is a sectional view of the pneumatic water valve of the present invention;

fig. 9 is a schematic view of the appearance structure of the vacuum blowoff valve of the present invention;

FIG. 10 is a cross-sectional view of the vacuum blowoff valve of the present invention taken along a direction parallel to the axis of the communicating flow passage;

FIG. 11 is a cross-sectional view of 1/4 showing the vacuum waste valve according to the present invention;

FIG. 12 is a cross-sectional view of the vacuum blowoff valve of the present invention taken along a direction perpendicular to the axis of the communicating flow passage (the structural diagram of the arrangement of the valve core assembly therein);

fig. 13 is a schematic view of the arrangement structure of the inner valve core assembly according to the present invention;

fig. 14 is an exploded view of the second spool assembly and inner spool assembly of the present invention;

fig. 15 is a schematic view of an appearance structure of the pneumatic controller of the present invention;

fig. 16 is a bottom view of the pneumatic controller of the present invention;

fig. 17 is a sectional view of the pneumatic controller of the present invention;

fig. 18 is a schematic view of the structure of the mounting chamber inside the pneumatic controller of the present invention;

fig. 19 is a schematic structural diagram of an execution control assembly inside the pneumatic controller according to the present invention;

fig. 20 is a sectional view of the pneumatic control button of the present invention;

fig. 21 is a cross sectional view of the pneumatic controller of the present invention in a non-operating state;

fig. 22 is a cross-sectional view of the pneumatic controller of the present invention in an operating state (pneumatic button fully pressed);

figure 23 is the cross-sectional view of pneumatic controller when reset state (upper spool subassembly and well spool subassembly all have reset, lower spool subassembly does not reset).

Wherein: 1. a toilet body;

11. a toilet cavity 12, a flushing connector 13, a sewage connector 14, a water inlet pipe 15 and a sewage discharge pipe;

2. a pneumatic control water valve;

21. the valve core assembly comprises a water inlet, a water outlet, a first control interface, a water valve chamber, a first control interface, a second control interface, a water valve chamber, a first control interface, a second control interface, a third control interface, a fourth control;

281. a first stem, 282, a first bellow, 283, a first return spring;

3. a vacuum blowoff valve;

31. a sewage inlet 32, a sewage outlet 33, vacuum interfaces A and 34, air interfaces A and 35, a second control interface 36, a sewage valve chamber 37 and a communicating flow passage;

38. a second spool assembly;

381. the second valve rod 382, the sealing guide plate 383, the second return spring 384 and the plug;

39. an inner spool assembly;

391. the vacuum valve comprises an inner valve rod, 392, a sliding block, 393, a special-shaped rubber sealing ring, 394, an upper inner chamber, 395, a lower inner chamber, 396, a negative pressure pipeline, 397 and a vacuum pipeline;

4. a pneumatic controller;

41. the air control interface B, 42, the vacuum interface B, 43, the air interface B, 44, the first output interface, 45 and the second output interface;

46. installing a chamber;

461, first cavity, 4611, first upper chamber, 4612, first lower chamber, 462, second cavity, 4621, second upper chamber, 4622, second lower chamber, 463, third cavity, 464, fourth cavity, 465, first bore, 466, second bore, 467, third bore, 468, fourth bore;

47. an upper spool assembly;

471. an upper valve rod 472, a pressure plate 373 and a third return spring;

48. a middle valve core assembly;

481. middle valve rod 482, fourth reset spring;

49. a lower spool assembly;

491. a lower valve stem, 492, a second bellow diaphragm, 493, a fifth return spring;

410. an air flow channel 411, a vacuum flow channel A, 412, a vacuum flow channel B, 413, a vent hole 414, a needle valve assembly 415, an annular sealing ring 416, a lip-shaped sealing ring 417, an o-shaped sealing ring 418 and a rubber plug;

5. an air control button;

51. the pneumatic control interface A, 52, a base, 53, a shell, 54, a button cap, 55, a sixth return spring, 56 and a button cavity;

6. and controlling the pipeline.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

as shown in fig. 1-4, a split type full pneumatic control vacuum toilet comprises a toilet body 1, a pneumatic control water valve 2 installed on the inner side of the toilet body 1 and used for flushing, a vacuum blowoff valve 3 used for discharging sewage, a pneumatic control controller 4 used for controlling the pneumatic control water valve 2 and the vacuum blowoff valve 3 to be on or off, and a pneumatic control button 5 installed on the outer side of the toilet body 1 and used for driving the pneumatic control controller 4 to execute work; a toilet cavity is arranged in the toilet body 1 and is communicated with a water inlet pipe 14 and a sewage discharge pipe 15; the pneumatic control water valve 2 is arranged on the water inlet pipe 14, the vacuum blowoff valve 3 is arranged on the blowoff pipe 15, and the control pipeline 6 is communicated between the pneumatic control controller 4 and the pneumatic control water valve 2 as well as between the vacuum blowoff valve 3.

Simply, as shown in fig. 5, the outer side end of the pneumatic water valve 2 is provided with a water inlet 21, a water outlet 22 and a first control interface 23, and the inside of the pneumatic water valve is provided with a first valve core assembly 28 for controlling the on-off of the water inlet 21 and the water outlet 22; the outer side end of the vacuum blowoff valve 3 is provided with a sewage inlet 31, a sewage outlet 32, a vacuum interface A33, an air interface A34 and a second control interface 35, and a second valve core assembly 38 for controlling the on-off of the sewage inlet 31 and the sewage outlet 32 is arranged in the vacuum blowoff valve; the outer end of the pneumatic controller 4 is provided with a vacuum interface B42, an air interface B43, a first output interface 44, a second output interface 45 and a pneumatic interface B41, and an execution control component which is used for realizing intermittent communication between the first output interface 44 and the second output interface 45 and the vacuum interface B42 and the air interface B43 through the air pressure change of the pneumatic interface B41 is arranged in the pneumatic controller 4; the outer side end of the air control button 5 is provided with an air control interface A51; as shown in fig. 5, the control pipeline 6 is used for respectively communicating the pneumatic control interface a51 with the pneumatic control interface B41, the first control interface 23 with the first output interface 44, the second control interface 35 with the second output interface 45, the vacuum interface a33 with the vacuum interface B42, and the air interface a34 with the air interface B43; the dotted line in the figure indicates the direction of the water flow.

Specifically, the concrete structure and the working principle about the horse barrel body 1, the pneumatic control water valve 2, the vacuum blowoff valve 3, the pneumatic control controller 4 and the pneumatic control button 5 are as follows:

as shown in fig. 6, the toilet body 1 is generally used for wall-mounted installation, and is provided with a toilet cavity 11 at the inner side, the toilet cavity 11 is of a hollow structure with an open upper end, and a reversible toilet cover is arranged at the upper end; the upper end of the closestool cavity 11 is provided with a flushing connector 12 connected with a water inlet pipe 14 and used for draining water into the closestool cavity 11 and flushing along the inner wall of the closestool cavity 11, and the lower end of the closestool cavity 11 is provided with a sewage discharge connector 13 connected with a sewage discharge pipe 15 and used for flushing excrement in the closestool cavity 11; the space at the rear side end of the toilet cavity 11 is used for placing and installing the pneumatic control water valve 2, the vacuum blowdown valve 3 and the pneumatic control controller 4, so that the integral structure adopts a rear blowdown mode to blowdown, and a water tank is not arranged; the side wall of the rear side end of the toilet body 1 and the wall close to the toilet body 1 can be used for installing an air control button 5.

As shown in fig. 7 and 8, a water valve chamber 24 communicated with the water inlet 21, the water outlet 22 and the first control interface 23 is arranged inside the pneumatic water valve 2, the first valve core assembly 28 is arranged in the water valve chamber 24, and includes a first valve rod 281 for realizing the on-off of the water inlet 21 through axial movement, a first corrugated diaphragm 282 fixedly connected with the first valve rod 281, and a first return spring 283 for realizing the return of the first valve rod 281, the upper part of the first corrugated diaphragm 282 is communicated with the first control interface 23, and the lower part thereof is communicated with the water inlet 21 and the water outlet 22; further, the upper end of the water valve chamber 24 is provided with an upper inner hole 25 for the first valve rod 281 to be inserted, matched and moved, the lower end of the water valve chamber is provided with a lower inner hole 26 for the first valve rod 281 to move downwards and be blocked, the side edge of the water valve chamber is provided with a side flow passage 27 communicated with the upper inner hole 25 and the lower inner hole 26, and the lower inner hole 26 is communicated with the water inlet 21; and the cross-sectional areas of the upper end surface and the lower end surface of the first valve stem 281 are the same.

The working principle of the pneumatic control water valve 2 is as follows:

under the non-working state, air is introduced into the first control interface 23, the water pressure received by the upper end surface of the first valve rod 281 is realized through the water inlet 21, the side flow passage 27 and the upper inner hole 25, the water pressure received by the lower end surface of the first valve rod 281 is realized through the water inlet 21 and the lower inner hole 26, the received pressures are consistent due to the same cross-sectional areas of the upper end surface and the lower end surface of the first valve rod 281, the total water pressure received by the first valve core assembly 28 is mutually offset, the closing of the first valve core assembly 28 is only influenced by the elastic action of the first return spring 283, the lower end part of the first valve rod 281 is positioned in the lower inner hole 26 under the action of the first return spring 283, the communication between the water inlet 21 and the water outlet 22 is further blocked, and the pneumatic control water valve 2 is in the non-water-communication state at the moment.

In the working state, the first control port 23 is vacuumed, a pressure difference exists between the upper end and the lower end of the first bellow membrane 282, the pressure difference overcomes the compression force of the first return spring 283 to move the first valve rod 281 upward, the lower end of the first valve rod 281 is separated from the lower inner hole 26 to communicate the water inlet 21 with the water outlet 22, and at this time, the pneumatic control water valve 2 is in a water-passing state.

As shown in fig. 9, 10 and 11, a blowoff valve chamber 36 is arranged inside the vacuum blowoff valve 3, a communication flow passage 37 is formed between the blowoff port 31 and the blowoff port 32, a second valve core assembly 38 is arranged in the blowoff valve chamber 36 and extends into the communication flow passage 37, and comprises a second valve rod 381 which can realize the on-off of the communication flow passage 37 through axial movement, a sealing guide plate 382 fixedly connected with the second valve rod 381, and a second return spring 383 used for realizing the return of the second valve rod 381, a plug 384 is fixedly arranged on one side of the second valve rod 381, which is biased to the communication flow passage 37, the upper part of the sealing guide plate 382 is communicated with the second control interface 35, and the lower part is communicated with the air interface; further, as shown in fig. 12, an inner valve core assembly 39 for sealing between the second valve core assembly 38 and the inner wall of the communication flow channel 37 is disposed inside the second valve rod 381 at a side biased to the communication flow channel 37, and as shown in fig. 13 and 14, the inner valve core assembly 39 includes an inner valve rod 391, a pair of sliders 392 and a profiled rubber sealing ring 393, which are sequentially disposed from top to bottom; the inner valve rod 391 divides the interior of the second valve rod 381 into an upper inner chamber 394 and a lower inner chamber 395, and the second valve rod 381 is internally provided with a negative pressure pipeline 396 extending to the side wall and communicated with the upper inner chamber 394 and a vacuum pipeline 397 communicated with the lower inner chamber 395; the negative pressure pipeline 396 is communicated with one side of the sewage inlet 31, the vacuum pipeline 397 is communicated with one side of the sewage outlet 32, and the lifting motion of the inner valve rod 391 is realized through the change of pressure difference; the special-shaped rubber sealing ring 393 is embedded in the outer wall of the plug 384 and is pushed by the inner valve rod 391 and the pair of sliding blocks 392 to realize sealing contact with the inner wall of the communicating flow channel 37; the plug 384 is of a hemispherical structure, the middle part of the upper end surface is provided with a pair of splayed wedge-shaped platforms, and the outer wall is provided with an annular groove along the vertical circumferential direction; the pair of sliding blocks 392 are arranged on the wedge-shaped table in a contact mode, the special-shaped rubber sealing ring 393 is embedded and arranged in the annular groove in a U shape, two end portions extend upwards, and the pair of sliding blocks 392 are in contact with the inner wall of the end portion of the special-shaped rubber sealing ring 393; the inner valve core is arranged above the pair of sliding blocks 392, the lower end parts of the inner valve core are in contact with the end parts of the sliding blocks 392, the pair of sliding blocks 392 move along the wedge-shaped table through lifting movement, and then the size of an end opening of the special-shaped rubber sealing ring 393 in a U-shaped structure is changed.

The working principle of the vacuum blowoff valve 3 is as follows:

in a non-working state, air is introduced into the second control interface 35, the air pressure at the upper end and the lower end of the sealing guide plate 382 is the same, the second valve core assembly 38 is lowered under the action of the second return spring 383, at this time, the second valve rod 381 and the plug 384 at the lower end almost divide the interior of the communication flow channel 37 into two parts, so that the pressure biased towards one end of the sewage outlet 32 is lowered, the pressure biased towards one end of the sewage inlet 31 is increased, as the vacuum pipeline 397 is positioned at one side biased towards the sewage outlet 32, the negative pressure pipeline 396 is positioned at one side biased towards the sewage inlet 31, the vacuum pipeline 397 is communicated with the lower inner chamber 395, the negative pressure pipeline 396 is communicated with the upper inner chamber 394, so that the pressure in the lower inner chamber 395 is lowered, the pressure in the upper inner chamber 394 is increased, the inner valve rod 391 is lowered, the pair of sliding blocks 392 is pushed to move towards two sides along the wedge-shaped table, the special-shaped rubber sealing ring 393 is pushed, and the sealing at the intersection line of the communication flow channel 37 and the plug 384 is finally realized, the closing and effective sealing of the communication flow passage 37 are achieved.

In a working state, vacuum is formed in the second control interface 35, the air pressure above the sealing guide plate 382 is smaller than the air pressure below the sealing guide plate 382, the second valve rod 381 rises against the acting force of the second compression spring, at the moment, the sewage inlet 31 is communicated with the sewage outlet 32 for discharging sewage, the air pressure in the negative pressure pipeline 396 and the air pressure in the vacuum pipeline 397 are the same, the pressure difference between the upper inner chamber 394 and the lower inner chamber 395 disappears, the inner valve rod 391 moves upwards, the pair of sliding blocks 392 retracts, and the special-shaped rubber sealing ring 393 resets to reduce the pressing force.

As shown in fig. 15, 16 and 17, the pneumatic controller 4 is internally provided with an installation chamber 46, the side of the interior is provided with an air channel 410, a vacuum channel a411 and a vacuum channel B412 which are communicated with the installation chamber 46, the pneumatic interface B41 is communicated with the upper end of the installation chamber 46, the vacuum interface B42 is communicated with the vacuum channel a411 and the vacuum channel B412, the air interface B43 is communicated with the air channel 410, and the first output interface 44 and the second output interface 45 are communicated with the lower end of the installation chamber 46; the executive control assembly includes an upper spool assembly 47, a middle spool assembly 48 and a lower spool assembly 49 disposed within the mounting chamber 46; further, as shown in fig. 18, the mounting chamber 46 includes a first cavity 461, a second cavity 462, a third cavity 463 and a fourth cavity 464 sequentially arranged from top to bottom; a first inner hole 465 is arranged at the upper end of the first cavity 461, a second inner hole 466 is arranged between the first cavity 461 and the second cavity 462, a third inner hole 467 is arranged between the second cavity 462 and the third cavity 463, and a fourth inner hole 468 is arranged between the third cavity 463 and the fourth cavity 464; as shown in fig. 19, the upper valve core assembly 47 is disposed in the first inner hole 465 and the first cavity 461, and includes an upper valve rod 471 and a pressing plate 472 integrally disposed, and a third return spring 473 disposed below the pressing plate 472; the upper valve rod 471 is inserted into the first inner hole 465, and the pressing plate 472 is disposed in the first cavity 461 and divides the first cavity 461 into a first upper chamber 4611 and a first lower chamber 4612; the middle valve core assembly 48 comprises a middle valve rod 481 and a fourth return spring 482, wherein the middle valve rod 481 is inserted and matched in the second inner hole 466, and the upper end and the lower end of the middle valve rod 481 respectively extend into the first cavity 461 and the second cavity 462; the lower spool assembly 49 includes a lower stem 491, a second bellows membrane 492 fixed to an upper end portion of the lower stem 491, and a fifth return spring 493; the lower valve rod 491 penetrates through the third inner hole 467, the upper end and the lower end of the lower valve rod respectively extend into the second cavity 462 and the third cavity 463, and the lower end part of the lower valve rod realizes the connection and disconnection of the fourth inner hole 468 through movement; second bellows diaphragm 492 is disposed in second cavity 462 and divides second cavity 462 into a second upper chamber 4621 and a second lower chamber 4622; the air flow passage 410 is communicated with the first upper chamber 4611, the first lower chamber 4612 and the fourth cavity 464; the vacuum flow passage a411 is communicated with the vacuum interface and the second lower chamber 4622, the vacuum flow passage B412 is communicated with the second lower chamber 4622 and the side wall of the second inner hole 466, and a needle valve assembly 414 for controlling the flow rate of the gas is arranged in the horizontal direction at one end of the inside of the vacuum flow passage B412 biased to the second lower chamber 4622; the pneumatic control interface B41 is communicated with the first inner hole 465, and the first output interface 44 and the second output interface 45 are communicated with the third cavity 463; meanwhile, a gap a for realizing the communication between the first lower chamber 4612 and the second upper chamber 4621 when the upper end side wall of the middle valve rod 481 moves to be aligned with the second inner hole 466 is arranged on the upper end side wall, and a vent hole 413 for realizing the communication between the second upper chamber 4621 and the vacuum flow passage B412 when the lower end side wall moves to be aligned with the second inner hole 466 is arranged on the lower end; the lower stem 491 is provided with a notch B at the side wall for allowing the second lower chamber 4622 to communicate with the third cavity 463 when moved into alignment with the third bore 467.

In order to ensure the sealing performance of the structure, sealing components are arranged between the upper valve rod 471 and the first inner hole 465, between the middle valve rod 481 and the second inner hole 466, between the lower valve rod 491 and the third inner hole 467, and in a fourth inner hole 468 which is used for being matched with the lower end part of the lower valve rod 491 to realize plugging; the seal assembly includes an annular seal 415 disposed between the upper stem 471 and the first bore 465, a lip seal 416 disposed between the middle stem 481 and the second bore 466, an o-ring 417 disposed between the lower stem 491 and the third bore 467, and a rubber plug 418 disposed in the fourth bore 468.

As shown in fig. 20, the pneumatic control button 5 includes a base 52, a housing 53, a button cap 54 embedded in the housing 53, and a sixth return spring 55 for pressing and returning the button cap 54, which are coaxially and fixedly disposed in sequence; the base 52, the housing 53 and the button cap 54 together form a button cavity 56; the button cavity 56 is in communication with the pneumatic interface a51 and by depressing the button cap 54, a change in air pressure within the button cavity 56 is effected, thereby affecting the air pressure at the pneumatic interface B41 with which it is in communication.

The working principle of the pneumatic controller 4 is specifically as follows (working in conjunction with the pneumatic control button 5):

as shown in fig. 21, in a non-operating state, the pneumatic control button 5 connected to the pneumatic control interface B41 is in a non-pressed state, the air interface B43 is communicated with the first upper chamber 4611 and the first lower chamber 4612 through the air flow passage 410, the upper valve rod 471 rises and returns to the highest point under the action of the third return spring 473, the middle valve rod 481 rises and returns to the highest point under the action of the fourth return spring 482, and meanwhile, the first lower chamber 4612 is not communicated with the second upper chamber 4621 under the action of the lip seal 416, so that the air in the first lower chamber 4612 cannot enter the second upper chamber 4621; meanwhile, the lower valve rod 491 rises and resets to the topmost end under the action of the fifth reset spring 493, the lower end of the lower valve rod 491 disengages from the rubber plug 418, and a third cavity 463 communicated with the first output interface 44 and the second output interface 45 is communicated with a fourth cavity 464 through a fourth inner hole 468 and is further communicated with an air interface B43, and finally, air can be introduced into the first output interface 44 and the second output interface 45; according to the working principle of the pneumatic control water valve 2 and the vacuum blowoff valve 3, air is introduced into the first control interface 23 and the second control interface 35, and the pneumatic control water valve 2 and the vacuum blowoff valve 3 are in a non-working state.

As shown in fig. 22, in the working state, the pneumatic control button 5 is pressed to the bottommost part, the air pressure in the first inner hole 465 communicated with the pneumatic control interface B41 is increased, and the downward movement of the upper valve rod 471 and the middle valve rod 481 is realized by overcoming the spring force of the third return spring 473 and the fourth return spring 482; after the lower end of the middle valve rod 481 contacts with the upper end of the lower valve rod 491, the pneumatic pressure in the first inner hole 465 continuously overcomes the spring forces of the third return spring 473, the fourth return spring 482 and the fifth return spring 493, and then the upper valve rod 471, the middle valve rod 481 and the lower valve rod 491 are all lowered to the bottom; when the lower valve rod 491 is at the bottommost part, the lower end part of the lower valve rod 491 blocks the rubber plug 418, so that the communication between the air interface B43 and the third cavity 463 is cut off; meanwhile, since the side wall of the lower stem 491 is provided with the notch B, the notch B is aligned with the third inner hole 467 when the lower stem 491 moves to the bottommost part, and is not aligned with the third inner hole 467 when the lower stem 491 is at the upper end part, the notch B realizes the communication between the second lower chamber 4622 and the third cavity 463; furthermore, the vacuum port B42 is communicated with the second lower chamber 4622, so that the first output port 44 and the second output port 45 communicated with the third cavity 463 are communicated with the vacuum port B42, and finally, vacuum is formed at the first output port 44 and the second output port 45; according to the working principle of the pneumatic control water valve 2 and the vacuum blowoff valve 3, vacuum is formed in the first control interface 23 and the second control interface 35, and the pneumatic control water valve 2 and the vacuum blowoff valve 3 are in working states.

As shown in fig. 23, in the reset state, the air control button 5 rebounds and resets, the upper spool assembly 47, the middle spool assembly 48 and the lower spool assembly 49 reset in sequence, and the reset speed decreases step by step; during the process that the upper valve stem 471 and the middle valve stem 481 are both reset and the lower valve stem 491 is not reset, as shown in fig. 23, the vacuum flow passage B412 communicates the second upper chamber 4621 and the second lower chamber 4622, and both communicate with the vacuum port B42, the only difference is that the time required for the air pressure inside the second upper chamber 4621 to decrease from the atmospheric pressure to the negative pressure is regulated and controlled by the needle valve assembly 414, and meanwhile, since the middle valve stem 481 is reset, the vent hole 413 communicates with the vacuum flow passage B412, and the second upper chamber 4621 communicates with the vacuum flow passage B412; the reset speed of the lower valve stem 491 can be controlled by manually adjusting the needle valve component 414, and the delayed closing function of the pneumatic controller 4 is further realized.

To sum up, the utility model discloses a gas accuse water valve 2, vacuum blowoff valve 3, gas accuse controller 4 and gas accuse button 5 constitute the control executive component of 1 inside of staving for realize that the blowdown action after the vacuum closestool uses the completion, each structural design is reasonable compact, uses through its cooperation, can effectively reduce the noise of blowdown in-process, and realizes the function maximize, in putting in the use, high-efficient structural design also can effectively improve life.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides a split type full gas accuse control's vacuum closestool which characterized in that: the toilet comprises a toilet body, a pneumatic control water valve, a vacuum blowdown valve, a pneumatic control controller and a pneumatic control button, wherein the pneumatic control water valve is arranged on the inner side of the toilet body and used for flushing, the vacuum blowdown valve is used for draining, the pneumatic control controller is used for controlling the pneumatic control water valve and the vacuum blowdown valve to be switched on and off, and the pneumatic control button is arranged on the outer side of the toilet body and used for driving the pneumatic control controller to work; a toilet cavity is arranged in the toilet body and communicated with a water inlet pipe and a sewage discharge pipe; the pneumatic control water valve is installed on the water inlet pipe, the vacuum blow-down valve is installed on the blow-down pipe, and a control pipeline is communicated among the pneumatic control controller, the pneumatic control water valve and the vacuum blow-down valve.

2. The split type full pneumatic control vacuum toilet bowl according to claim 1, characterized in that: the outer side end of the pneumatic control water valve is provided with a water inlet, a water outlet and a first control interface, and the inside of the pneumatic control water valve is provided with a first valve core assembly for controlling the on-off of the water inlet and the water outlet; the outer side end of the vacuum sewage discharge valve is provided with a sewage inlet, a sewage outlet, a vacuum interface A, an air interface A and a second control interface, and a second valve core assembly for controlling the on-off of the sewage inlet and the sewage outlet is arranged in the vacuum sewage discharge valve; the external end of the pneumatic control controller is provided with a vacuum interface B, an air interface B, a first output interface, a second output interface and a pneumatic control interface B, and an execution control component which is used for realizing intermittent communication between the first output interface and the second output interface and the vacuum interface B and the air interface B through the air pressure change of the pneumatic control interface B is arranged in the pneumatic control controller; the outer side end of the air control button is provided with an air control interface A; the control pipeline is used for respectively communicating the pneumatic control interface A with the pneumatic control interface B, the first control interface with the first output interface, the second control interface with the second output interface, the vacuum interface A with the vacuum interface B, and the air interface A with the air interface B.

3. The split type full pneumatic control vacuum toilet bowl according to claim 2, characterized in that: the pneumatic control water valve is characterized in that a water valve chamber communicated with the water inlet, the water outlet and the first control interface is arranged in the pneumatic control water valve, the first valve core assembly is arranged in the water valve chamber and comprises a first valve rod, a first corrugated diaphragm and a first reset spring, the first valve rod is used for realizing the connection and disconnection of the water inlet through axial movement, the first corrugated diaphragm is fixedly connected with the first valve rod, the first reset spring is used for realizing the reset of the first valve rod, the upper part of the first corrugated diaphragm is communicated with the first control interface, and the lower part of the first corrugated diaphragm is communicated with the water inlet and the water outlet; a blowoff valve chamber is arranged in the vacuum blowoff valve, a communicating flow passage is formed between the sewage inlet and the sewage outlet, the second valve core assembly is arranged in the blowoff valve chamber and extends into the communicating flow passage, the second valve core assembly comprises a second valve rod for realizing the on-off of the communicating flow passage through axial movement, a sealing guide plate fixedly connected with the second valve rod and a second reset spring for realizing the reset of the second valve rod, a plug is fixed on one side of the second valve rod, which is deviated to the communicating flow passage, the upper part of the sealing guide plate is communicated with the second control interface, and the lower part of the sealing guide plate is communicated with the air interface; the pneumatic control controller is internally provided with an installation cavity, the side edge of the interior of the pneumatic control controller is provided with an air flow passage, a vacuum flow passage A and a vacuum flow passage B which are communicated with the installation cavity, the pneumatic control interface B is communicated with the upper end part of the installation cavity, the vacuum interface B is communicated with the vacuum flow passage A and the vacuum flow passage B, the air interface B is communicated with the air flow passage, and the first output interface and the second output interface are communicated with the lower end part of the installation cavity; the execution control assembly comprises an upper valve core assembly, a middle valve core assembly and a lower valve core assembly which are arranged in the installation cavity; the pneumatic control button is internally provided with a button cavity which is communicated with the pneumatic control interface A and can realize the change of internal air pressure.

4. The split type full pneumatic control vacuum toilet bowl according to claim 3, characterized in that: an upper inner hole for the first valve rod to be inserted, matched and moved is formed in the upper end of the water valve cavity, a lower inner hole for the first valve rod to move downwards and be blocked is formed in the lower end of the water valve cavity, a side flow passage communicated with the upper inner hole and the lower inner hole is formed in the side edge of the water valve cavity, and the lower inner hole is communicated with the water inlet; the cross section areas of the upper end surface and the lower end surface of the first valve rod are the same.

5. The split type full pneumatic control vacuum toilet bowl according to claim 3, characterized in that: an inner valve core assembly used for realizing sealing between the second valve core assembly and the inner wall of the communicating flow channel is arranged on one side of the interior of the second valve rod, which is deviated to the communicating flow channel, and the inner valve core assembly comprises an inner valve rod, a pair of sliding blocks and a special-shaped rubber sealing ring which are sequentially arranged from top to bottom; the inner valve rod divides the interior of the second valve rod into an upper inner chamber and a lower inner chamber, and a negative pressure pipeline extending to the side wall and communicated with the upper inner chamber and a vacuum pipeline communicated with the lower inner chamber are arranged in the second valve rod; the negative pressure pipeline is communicated with one side of the sewage inlet, the vacuum pipeline is communicated with one side of the sewage outlet, and the lifting motion of the inner valve rod is realized through the change of pressure difference; the special-shaped rubber sealing ring is embedded in the outer wall of the plug, and is pushed by the inner valve rod and the pair of sliding blocks to realize sealing contact with the inner wall of the communicating flow channel.

6. The split type full pneumatic control vacuum toilet bowl according to claim 3, characterized in that: the mounting chamber comprises a first cavity, a second cavity, a third cavity and a fourth cavity which are sequentially arranged from top to bottom; a first inner hole is formed in the upper end of the first cavity, a second inner hole is formed between the first cavity and the second cavity, a third inner hole is formed between the second cavity and the third cavity, and a fourth inner hole is formed between the third cavity and the fourth cavity; the upper valve core assembly is arranged in the first inner hole and the first cavity and comprises an upper valve rod and a pressing plate which are arranged in an integrated structure and a third reset spring arranged below the pressing plate; the upper valve rod is inserted and matched in the first inner hole, and the pressure plate is arranged in the first cavity and divides the first cavity into a first upper cavity and a first lower cavity; the middle valve core assembly comprises a middle valve rod and a fourth return spring, the middle valve rod is inserted and matched in the second inner hole, and the upper end and the lower end of the middle valve rod respectively extend into the first cavity and the second cavity; the lower valve core assembly comprises a lower valve rod, a second corrugated diaphragm fixed at the upper end part of the lower valve rod and a fifth return spring; the lower valve rod penetrates through the third inner hole, the upper end and the lower end of the lower valve rod respectively extend into the second cavity and the third cavity, and the lower end part of the lower valve rod is moved to realize the connection and disconnection of the fourth inner hole; the second corrugated diaphragm is arranged in the second cavity and divides the second cavity into a second upper cavity and a second lower cavity; the air flow channel is communicated with the first upper cavity, the first lower cavity and the fourth cavity; the vacuum flow passage A is communicated with the vacuum interface and the second lower cavity, and the vacuum flow passage B is communicated with the second lower cavity and the side wall of the second inner hole; the pneumatic control interface B is communicated with the first inner hole, and the first output interface and the second output interface are communicated with the third cavity.

7. The split type full pneumatic control vacuum toilet bowl according to claim 6, characterized in that: a gap A for realizing the communication between the first lower chamber and the second upper chamber when the middle valve rod moves to be aligned with the second inner hole is arranged on the side wall of the upper end part of the middle valve rod, and a vent hole for realizing the communication between the second upper chamber and the vacuum flow passage B when the middle valve rod moves to be aligned with the side wall of the second inner hole is arranged on the lower end part of the middle valve rod; and a gap B for realizing the communication between the second lower cavity and the third cavity when the lower valve rod moves to be aligned with the third inner hole is arranged on the side wall of the lower valve rod.

8. The split type full pneumatic control vacuum toilet bowl according to claim 6, characterized in that: and a needle valve assembly for controlling the flow rate of gas is arranged at one end of the interior of the vacuum flow channel B, which is deviated to the second lower chamber, along the horizontal direction.

9. The split type full pneumatic control vacuum toilet bowl according to claim 3, characterized in that: the pneumatic control button comprises a base, a shell, a button cap and a sixth reset spring, wherein the base, the shell, the button cap and the sixth reset spring are coaxially and fixedly arranged in sequence; the base, the shell and the button cap together form a button cavity.

10. The split type full pneumatic control vacuum toilet bowl according to claim 9, wherein: the pneumatic control button is arranged on the side wall of the rear side end of the toilet body or a wall close to the installation position of the toilet body.

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