Push-pull type excrement collector

Abstract

The invention provides a push-pull type excrement collector. The sewage inlet pipe is provided with an upper end opening, a sewage receiving port and a sewage discharge port, the upper end opening is communicated with the connecting pipe and connected to the bedpan, the sewage inlet pipe is communicated with the bedpan blow-off pipe, and an L-shaped structure is formed between the sewage inlet pipe and the bedpan blow-off pipe; the sewage discharge outlet is communicated with the sewage buffer area; the jet pipe is mounted at one end of the sewage receiving port; the opening direction of the jet pipe is consistent with that of the sewage discharge port; the jet pipe is connected with a gas source or a pressurized water source through a jet control valve, and a liquid jet source or a gas jet source is connected to the sewage inlet pipe. When the jet pipe sprays at a high speed, a vacuum area is formed in the sewage inlet pipe, and sewage discharge is promoted. The excrement collector further comprises an ejector, an ejector body is connected with the blow-off pipe, and a gap is formed between the ejector body and the blow-off pipe. An air inlet is formed in the ejector body, and the circumferential folding reducing pipe is connected to the ejector body. When high-speed compressed air is introduced into the ejector main body, the circumferential folding reducing pipe shrinks, a vacuum area is formed to prevent ejected air molecules from flowing back, and sewage discharge is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of sanitary ware, and in particular to a push-pull toilet collection pan. Background Art

[0002] The high-speed rail vacuum feces collection system has good water-saving properties and is of great significance in reducing the water storage volume of trains, lowering the vehicle's own weight, improving pollution along the way, and improving the economy of train operations.

[0003] The production of traditional train vacuum toilets mainly relies on technology introduction, mainly including holding vacuum toilets and transfer vacuum toilets. After years of application in my country's high-speed rail, it has been found that there are the following technical defects.

[0004] First, the vacuum toilet collection system depends on the vacuum generator. Due to the existence of the vacuum generator, the gas consumption is so great that the high-speed rail has specially added a duct of the same type as the brake air duct. Both the equipment investment and energy consumption are considerable; second, the failure rate of valves installed in the sewage channel remains high, and the maintenance environment is extremely unfriendly, which brings a lot of trouble to operational support; third, when the high-speed rail toilet collection encounters repeated failures, it often requires collective research. The result of the research is usually to increase the detection components or functional components. The structure of the vacuum toilet collection system has been adding, making the already large high-speed rail toilet collection system more complicated, and the failures have not decreased but increased. Take the sewage backsplash in the toilet as an example, it will happen many times a year.

[0005] Another type of online tube vacuum toilet collector introduced during the same period has a simple structure, stable performance and low failure rate. It can be said to be the most ideal technical solution in the history of toilet collector research. However, its disadvantage is high gas consumption, which is a common and stubborn problem of existing toilet collectors. In addition, the online tube vacuum toilet collector has high noise, and the eddy current noise is very large when high-pressure air is ejected from the pipe mouth. In addition, the rubber pressure-sensitive shrink tube added at the ejector nozzle produces resonance noise, which is difficult for most people to accept. Therefore, the online tube vacuum toilet collector has not been widely promoted and applied.

[0006] The design of toilets should comply with two principles: first, the sewage channel should be barrier-free; second, debris should not be allowed to enter; in addition, attention should be paid to technical effects in terms of noise, water saving, volume, weight, simplified structure, etc. How to reduce the diameter of the sewage pipe and reduce the weight of the product while also significantly reducing the power to drive the sewage flow, thereby reducing the energy consumption of the toilet is the goal of the design.

[0007] However, existing toilets are complex in structure, expensive, heavy, and noisy. A single toilet costs tens of thousands of yuan, making it difficult to promote in more application areas.

[0008] In view of this, this invention is proposed. Summary of the invention

[0009] The purpose of the present invention is to solve one of the above technical problems and provide a push-pull toilet collection tank.

[0010] To achieve the above object, the present invention adopts the following technical solution:

[0011] A push-pull toilet collection device comprises a sewage jet accelerator, a controller, a sewage pipe, a toilet bowl and a waste tank;

[0012] The sewage jet accelerator includes a sewage inlet pipe, a jet pipe, a connecting pipe, a jet control valve, and a pressure air or high-pressure water inlet P:

[0013] The jet accelerator body forms a sewage buffer zone;

[0014] The sewage inlet pipe has an upper opening near the pipe wall within the inner wall of the connecting pipe, and is connected to the sewage outlet and the toilet sewage discharge. The upper opening is connected to the toilet bowl through a connecting pipe, and the sewage discharge port is connected to the sewage buffer zone and is connected to the toilet bowl through a connecting pipe. Discharge the waste into the waste tank through the sewage pipe ; Wherein, the upper opening is arranged upward along the vertical direction;

[0015] The jet pipe is installed at one end of the sewage outlet, and the opening direction of the jet pipe is consistent with the sewage outlet; the jet pipe is connected to the jet control valve, and is connected to the gas source or the pressurized water source through the jet control valve, and the jet control valve is electrically connected to the controller to control the connection of the gas jet source or the liquid jet source to the sewage inlet pipe;

[0016] The connecting pipe is arranged in a vertical direction and is connected to the sewage outlet of the toilet bowl through a sealing member.

[0017] In some embodiments of the present invention, the sewage inlet pipe is arranged in an L shape relative to the toilet bowl sewage discharge pipe.

[0018] In some embodiments of the present invention, the sewage inlet pipe is arranged horizontally, and the connecting port between the jet pipe and the sewage inlet pipe is located below the horizontal center line of the sewage inlet pipe.

[0019] In some embodiments of the present invention, the push-pull toilet collector further includes an ejector, wherein the ejector includes a circumferentially folded reduced diameter pipe, a support pipe, a protective pipe, an ejector ring, an ejector body and a sewage pipe;

[0020] Circumferential folded reducing tube:

[0021] The ejector body is in the shape of a pipe sleeve, which is sleeved on the pipe mouth end of the sewage pipe, and a gap for air circulation is formed between the ejector body and the outer wall of the pipe mouth of the sewage pipe. An air inlet is arranged on the ejector body;

[0022] Circumferential folding reducing tube: It is a flexible tube connected to the ejector body through a supporting structure. Several layers of folds are formed on the circumference of the main body of the circumferential folding reducing tube. The diameter of the circumferential folding reducing tube is folded to achieve contraction, and the axial stretching length is supplemented by the flexibility of the circumferential folding reducing tube. The outlet of the circumferential folding reducing tube is connected to the dirt tank.

[0023] Injector control valve: the air inlet is connected to the air source via the injector control valve, and the injector control valve is electrically connected to the controller;

[0024] At the pipe opening of the ejector body adjacent to the circumferential folding reducing pipe, an air intake gap opening is provided between the inner diameter of the pipe opening and the sewage pipe, and the air intake gap opening is connected to the inner cavity of the circumferential folding reducing pipe.

[0025] In some embodiments of the present invention, a wedge-shaped surface is formed at the pipe opening of the ejector body adjacent to the circumferentially folded reducing pipe, and an ejection ring is installed at the pipe opening of the sewage pipe, and an ejection slit is formed between the ejection ring and the wedge-shaped surface.

[0026] Injector control valve:

[0027] In some embodiments of the present invention, a swing gate valve and a top gate piston are provided at the outlet of the sewage inlet pipe of the sewage jet accelerator.

[0028] In some embodiments of the present invention, the sewage jet accelerator also includes a swing gate valve plate, which is swingably connected to the jet accelerator body and is arranged at the outlet of the sewage inlet pipe. When the swing gate is in a closed state, the sewage inlet pipe outlet at the first end of the sewage inlet pipe is closed, and when the swing gate is in an open state, the sewage inlet pipe outlet is opened.

[0029] In some embodiments of the present invention, the sewage jet accelerator also includes a top door piston structure, which includes a piston body and a piston located in the piston body, the piston is connected to a top door rod, the top door rod passes through the sewage buffer zone, and is arranged in the direction of the swing gate valve plate. When the top door rod is driven by the piston to move toward the swing gate valve plate until it contacts the swing gate valve plate, the top door rod stops the swing gate valve plate. When the piston drives the top door rod to move away from the swing gate valve plate and disengage from the swing gate valve plate, the swing gate valve plate can swing.

[0030] In some embodiments of the present invention, the top door piston structure further includes a top door control valve, the piston body is connected to the air source via the top door control valve, and the controller is electrically connected to the top door control valve to control the movement of the piston body.

[0031] In some embodiments of the present invention, a sound sensor is further included to detect the sound of the toilet collector. The controller is electrically connected to the sound sensor and generates a pipe wall control signal of the jet control valve according to a feedback signal of the sound sensor.

[0032] In some embodiments of the present invention, the support structure includes a support tube and a protective tube. The support tube is sleeved on the outer circumference of the circumferentially folded reducing tube to support the tube openings at both ends of the circumferentially folded reducing tube. The protective tube is sleeved on the outside of the support tube. One end of the protective tube is connected to the injector body, and the other end is in contact with the tube opening of the circumferentially folded reducing tube. One or more air holes are distributed along the outer circumferential wall of the support tube and the outer circumferential wall of the protective tube.

[0033] Compared with the prior art, the push-pull toilet provided by the present invention has the following technical advantages:

[0034] 1. The push-pull toilet collector proposed in the present invention omits the vacuum generator, adds a sewage jet accelerator and an ejector equipped with a circular folded reduced diameter tube (also called a tube vacuum generator), both parts can produce a vacuum effect, the two parts can act simultaneously or separately, and can also constitute a toilet collector separately, thereby improving the sewage extraction effect of the toilet collector, effectively avoiding the blockage of various sewage channels, and having a good water-saving effect.

[0035] 2. The push-pull toilet bowl proposed in the present invention uses a sewage jet accelerator to push the sewage in the pipe to increase the flow rate. At the same time, a local vacuum is formed around the jet nozzle to suck the sewage at the bottom of the toilet bowl. The vacuum stool collection function of the existing toilet bowl is realized in the most appropriate position, using the least energy and with the simplest structure.

[0036] 3. The push-pull toilet collector proposed in the present invention has a circumferentially folded reducing pipe whose size after reduction can be set as needed. As the pipe diameter is reduced, the vacuum degree generated in the sewage pipe will be significantly improved; the folding of the pipe wall can make the reducing pipe less likely to resonate, and the working noise of the toilet collector is significantly reduced.

[0037] 4. The overall structure of the toilet collection tank is simplified, which can significantly reduce the cost of the toilet collection tank. The small size and light weight save installation space; it is also conducive to reducing the weight of high-speed rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1a This is a schematic diagram of the structural principle of the first embodiment of the push-pull toilet collector of the present invention;

[0040] Figure 1b This is a schematic diagram of the structural principle of the second embodiment of the push-pull toilet collector of the present invention;

[0041] Figure 2 The figure is a schematic diagram of the structure of the bedpan;

[0042] Figure 3 for Figure 2 Partial magnified image;

[0043] Figure 4 It is a schematic diagram of the cross-sectional structure of the sewage jet accelerator;

[0044] Figure 5 This is a schematic diagram of the three-dimensional structure of the sewage jet accelerator;

[0045] Figure 6 This is a schematic diagram of the structure of a sewage jet accelerator viewed from above;

[0046] Figure 7 It is a schematic diagram of the cross-sectional structure of the ejector;

[0047] Figure 8 It is a schematic diagram of the three-dimensional structure of the ejector;

[0048] Figure 9a It is a schematic diagram of the three-dimensional structure of the circumferentially folded reduced diameter tube in the initial state;

[0049] Figure 9b It is a schematic diagram of the side view structure of the circumferential folded reduced diameter tube in the initial state;

[0050] Fig.9c It is a schematic diagram of the AA structure of the circumferential folded reduced diameter tube in the initial state;

[0051] Figure 9d It is a schematic diagram of the three-dimensional structural model of the circumferential folded reduced diameter tube in the initial state;

[0052] Fig.9e It is a schematic diagram of the side view structural model of the circumferential folded reduced diameter tube in the initial state;

[0053] Figure 9f It is a schematic diagram of the AA structural model of the circumferential folded reduced diameter tube in the initial state;

[0054] Fig.10a It is a schematic diagram of the three-dimensional structure of the circumferential folded reduced diameter tube in the contracted state;

[0055] Fig.10b It is a schematic diagram of the side view structure of the circumferential folded reduced diameter tube in the contracted state;

[0056] Fig.10c It is a schematic diagram of the AA structure of the circumferential folded reduced diameter tube in the contracted state;

[0057] Fig.10d It is a schematic diagram of the three-dimensional structural model of the circumferential folded reduced diameter tube in the contracted state;

[0058] Fig.10e It is a schematic diagram of the side view structural model of the circumferential folded reduced diameter tube in the contracted state;

[0059] Fig.10f It is a schematic diagram of the AA-axis structural model of the circumferential folded reduced diameter tube in the contracted state;

[0060] Fig.11 This is the principle diagram of the circumferential folded reducing tube;

[0061] Fig.12 It is a schematic diagram of the cross-sectional structure of the support tube;

[0062] Fig.13 It is a schematic diagram of the three-dimensional structure of the support tube;

[0063] In the above figures:

[0064] 1- sewage jet accelerator, 101- jet accelerator body, 102- sewage inlet pipe, 1021- upper end opening, 1022- sewage receiving port, 1023- sewage discharge port, 103- jet pipe, 104- sewage discharge pipe, 105- sewage buffer zone, 106- swing gate valve plate, 107- top gate piston structure, 108- top gate rod, 109- top gate control valve, 110- jet control valve, 111- connecting pipe;

[0065] 2-injector, 201-injector body, 202-air inlet, 203-injector control valve, 204-circumferential folded reducing tube, 2041-pleated section, 205-injection ring, 206-injection slit, 207-support tube, 2071-groove, 208-protection tube, 209-air hole;

[0066] 3-Bedside pan, 301-sewage outlet, 302-bedside pan sewage pipe;

[0067] 4- Controller;

[0068] 5- Dirt tank;

[0069] 6- Sewage pipe. DETAILED DESCRIPTION

[0070] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0071] It should be noted that when an element is referred to as being "disposed on", "connected to", another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0072] It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0073] The terms "first", "second", and "third" are used for descriptive purposes only and are not intended to imply relative importance.

[0074] Hereinafter, the specific implementation modes of the present invention will be described in detail with reference to the accompanying drawings.

[0075] refer to Figure 1a The first embodiment of the present invention provides a push-pull toilet collector, including a sewage jet accelerator 1, a controller 4, a toilet bowl 1, a sewage pipe 6 and a waste tank 5.

[0076] refer to Figure 1b The second embodiment of the present invention further provides another variant implementation of the feces collector. It includes a sewage jet accelerator 1, an ejector 2, a controller 4, a toilet bowl 1, a sewage pipe 6 and a waste tank 5. The difference between the two implementations is whether the ejector 2 is included. In the present invention, the ejector 2 is an optional structure. The feces collection function can be completed by the sewage jet accelerator 1, and the feces collection function can also be completed by the combination of the sewage jet accelerator 1 and the ejector 2.

[0077] Hereinafter, the structure of the push-pull toilet provided by the first embodiment of the present invention will be described.

[0078] The structure of the toilet bowl 3 belongs to the prior art, and its structure is the same as the prior art, so it is not repeated. The toilet bowl 3 includes a sewage outlet 301, and a toilet bowl sewage pipe 302 is installed at the sewage outlet 301. The sewage in the toilet bowl 3 is discharged through the sewage outlet 301, and is connected to the sewage jet accelerator 3 through the sewage pipe 302. The sewage in the toilet bowl 3 is discharged to the sewage jet accelerator 1 through the sewage pipe 302.

[0079] The sewage jet accelerator 1 is used to assist the discharge of sewage into the sewage tank 5. Figures 3 to 6 The sewage jet accelerator 1 can be introduced into a gas source or a liquid source (air or water can be used), and the waste flowing into the sewage jet accelerator 1 is discharged toward the waste tank 5 through high-speed gas or high-speed liquid.

[0080] The structure of the sewage jet accelerator 1 includes: a jet accelerator body 101, a sewage inlet pipe 102, a jet pipe 103, a connecting pipe 110, a jet control valve 210, and a pressure air or high-pressure water inlet P. The pressure air or high-pressure water inlet P of the jet pipe 103 is connected to an air source or a liquid source through a pipeline.

[0081] The sewage inlet pipe 102 has an upper opening 1021, a sewage receiving port 1022 and a sewage discharge port 1023. The upper opening 1021 is connected to the connecting pipe 110 and connected to the toilet bowl 1. The sewage discharge port 1023 is connected to the sewage buffer zone 105. The jet tube 103 is installed at one end of the sewage receiving port 1022. The opening direction of the jet tube 103 is consistent with the sewage discharge port 1023.

[0082] The jet accelerator body 101 is formed with a sewage buffer zone 105, which is a section of the tube cavity area formed on the jet accelerator body 101 and serves as a temporary storage area for the sewage discharged from the toilet bowl 1. The sewage outlet of the sewage buffer zone 105 is connected to the sewage pipe 104, and the end of the sewage pipe 104 is connected to the sewage tank 5.

[0083] The sewage inlet pipe 102 is connected to the toilet bowl sewage pipe 102, and the first end and the second end are defined along the length direction of the sewage inlet pipe 102, and the first end of the pipe opening can be connected to the sewage buffer zone 105. The jet pipe 103 is arranged at the second end of the sewage inlet pipe 102 and is connected to the sewage inlet pipe 102; a jet control valve 110 is arranged on the inlet end pipeline of the jet pipe 103, and the jet control valve 110 is electrically connected to the controller 4, and the controller 4 sends an electric control signal to the jet control valve 110. To control the connection of the liquid jet source or the gas jet source to the sewage inlet pipe. When the jet control valve 110 is opened, the sewage jet accelerator 1 is connected to the gas source or the liquid source, and when the jet control valve 110 is closed, the sewage jet accelerator 1 is closed to the gas source or the liquid source.

[0084] The function of the sewage jet accelerator 1 is explained by taking the use of an air source as an example.

[0085] The diameter of the jet tube 103 is 2-3 cm, and the diameter of the sewage inlet pipe 102 is about 30 cm. When the sewage jet accelerator 1 is connected to the gas source, the high-speed gas enters the jet tube 103 through the inlet P, and then enters the sewage inlet pipe 102. The working principle of the jet tube 103 is the Venturi tube principle. Since the diameter of the jet tube 103 is very small, when the connected gas flow rate is large enough, the internal pressure of the sewage inlet pipe 102 is reduced, which will produce a local vacuum effect and produce a suction effect on the sewage in the toilet.

[0086] The high-speed gas blows the waste in the sewage inlet pipe 102 into the sewage buffer zone 105. The sewage buffer zone 105 is connected to the sewage discharge pipe 104 and is finally discharged to the sewage tank 5.

[0087] The problem of clogging the waste channel of the toilet collection machine is relatively complicated. Although the train prohibits large sanitary napkins and forks, chopsticks, spoons and other sundries provided in the packaging of instant foods from being thrown into the toilet, there is still a situation where such waste is thrown into the toilet collection machine. Large volumes of waste entering the sewage pipeline can easily cause pipeline blockage. Therefore, the toilet collection machine should have the function of refusing to accept these debris. In some embodiments of the present invention, the sewage inlet pipe 102 is set at 90 degrees relative to the toilet bowl sewage pipe 102, forming an L-shaped matching structure. It should be understood that the toilet bowl sewage pipe 102 is vertical, and the sewage inlet pipe 102 is set horizontally and horizontally. The sewage forms a right-angle turning passage here to prevent large sanitary napkins and instant food packaging and forks, chopsticks, spoons and other sundries from entering the sewage channel; in addition, the size of the toilet bowl sewage outlet 101 is changed to 23mm to prevent debris from entering the feces collection system. Such waste can be manually removed in time to avoid affecting the use of the toilet collection machine.

[0088] In some embodiments of the present invention, the sewage inlet pipe is arranged horizontally, and the communication port between the jet pipe 103 and the sewage inlet pipe 102 is located below the horizontal center line of the sewage inlet pipe 102. It should be understood that the jet pipe 103 includes a pipe body section and a pipe joint section, the pipe body section is located inside the sewage inlet pipe 102, and the pipe joint section is connected to the gas source or liquid source. Setting the position of the jet pipe 103 below the horizontal center line of the sewage inlet pipe 102 can achieve a more adequate flushing effect.

[0089] In some embodiments of the present invention, the sewage jet accelerator 1 further includes a swing gate valve plate 106, which is used to assist in opening or closing the port at the first end of the sewage inlet pipe 102, that is, the sewage outlet of the sewage inlet pipe 102. The swing gate valve plate 106 is swingably connected to the jet accelerator body, that is, a connection structure that can swing or rotate relatively is formed, and is arranged at the first end of the sewage inlet pipe 102. In the swing-closed state, the first end of the sewage inlet pipe 102 is closed, and in the swing-open state, the first end of the sewage inlet pipe 102 is opened.

[0090] In order to improve the flexibility of the swing gate valve plate 106 and stabilize the sealing effect of the swing gate valve plate 106 on the sewage inlet pipe 102, in some embodiments of the present invention, the sewage jet accelerator 1 also includes a top gate piston structure 107, the top gate piston structure 107 includes a piston body and a piston located in the piston body, the piston structure is connected to the sewage buffer zone 105 as a whole, the piston is connected to the top gate rod 108, the top gate rod 108 passes through the sewage buffer zone 105, and is arranged in the direction of the swing gate valve plate 106. When 108 moves toward the swing gate valve plate 106 until it contacts the swing gate valve plate 106, the top gate rod 108 stops the swing gate valve plate 106. At this time, even if a high-flow gas or liquid is introduced, the swing gate valve plate 106 cannot be opened, and the sewage jet accelerator 1 cannot discharge sewage downward; when the piston drives the top gate rod 108 to move away from the swing gate valve plate 106 and disengage from the swing gate valve plate, the swing gate valve plate 205 can rotate. At this time, a high-flow gas or liquid is introduced to open the swing gate valve plate 106, and the sewage jet accelerator 1 discharges sewage downward.

[0091] In some embodiments of the present invention, the top door piston structure 107 further includes a top door control valve 109, the piston body is connected to the air source via the top door control valve 109, and the controller is electrically connected to the top door control valve 109 to control the movement of the piston body.

[0092] For the control method of the above-mentioned jet control valve 110 and top door control valve 109, an example is given below. The jet time can be selected by sound control method or timing method, and a control signal for the jet control valve 110 is generated according to the sound and timing. In some embodiments of the present invention, a sound sensor is also included to detect the sound of the toilet. The controller is electrically connected to the sound sensor, and a control signal for the jet control valve 110 is generated according to the feedback signal of the sound sensor. It should be understood that when the sewage in the toilet bowl 1 is exhausted, noise will be generated, and the sound sensor can detect the noise as a signal to close the jet control valve 110; the timing method is generally used to control the flushing volume of the toilet bowl. When the sewage is exhausted, the toilet bowl makes noise. After the sound sensor detects the noise, the jet control valve 110 is closed to stop the jet, and the top door control valve 109 is closed to allow the top door rod 108 to press against the swing valve plate 106; the toilet booster flushing unit is restarted to flush the toilet bowl and release the water; and a complete work is completed.

[0093] refer to Figure 1b The second embodiment of the present invention further provides another variant implementation of a toilet collection device, which includes a toilet bowl 1, a sewage jet accelerator 1, an ejector 2, a controller 4 and a waste tank 5.

[0094] The structures of the toilet bowl 1 and the sewage jet accelerator 1 are the same as those in the first embodiment and will not be described in detail.

[0095] The ejector 2 includes a circumferentially folded reduced diameter pipe 204 , a support structure, an ejection ring 205 , an ejector body 201 and a drain pipe 104 , wherein the support structure is a support pipe 207 and a protective pipe 208 .

[0096] The high-speed gas blows the waste in the sewage inlet pipe 102 into the sewage buffer zone 105. The sewage buffer zone 105 is connected to the sewage discharge pipe 104, and the sewage discharge pipe 104 is connected to the ejector 2 to further discharge the waste in the direction of the ejector 2.

[0097] The ejector 2 is used to assist the discharge of waste into the waste tank 5. The ejector 2 includes an ejector body 201, an ejector control valve 302 and a circumferentially folded reduced diameter tube 204.

[0098] refer to Figure 7 and Figure 8 The ejector body 201 is in the shape of a tube sleeve, which is sleeved on the outer end of the sewage outlet of the sewage pipe 104, and forms a gap for air circulation between the ejector body 201 and the outer wall of the sewage pipe 104. The ejector body 201 is coaxial with the sewage pipe 104. An air inlet 202 is provided on the ejector body 201. The ejector control valve 203: The air inlet 202 is connected to the air source through the ejector control valve 203.

[0099] The circumferential folding reducing tube 204 is connected to the ejector body 201 via a supporting structure. The circumferential folding reducing tube 204 is a flexible tube and can be made of rubber. Several layers of pleated segments 2041 are formed on the circumference of the main body of the tube, and each layer of pleated segments 2041 is arranged along the circumference of the circumferential folding reducing tube 204. This structure enables the circumferential folding reducing tube 204 to be retractable in the circumferential direction. The shrinkage of the tube diameter of the circumferential folding reducing tube 204 is achieved by the pleats, and the axial stretching length is supplemented by the flexibility of the circumferential folding reducing tube 204. For example, when the external pressure of the circumferential folding reducing tube 204 is greater than the internal pressure, the tube radially shrinks in the circumferential direction of the folding reducing tube 204.

[0100] refer to Figures 9a to 9c , is a diagram of the circumferential folded reducing tube 204 in an uncontracted state, refer to Figures 10a to 10c FIG. 2 is a diagram showing the circumferentially folded reduced diameter tube 204 in a contracted state. Fig.11 The two radii on the folds of the circular folded reducing tube 204 before shrinking are R1a and R2a respectively. The circular folded reducing tube 204 begins to shrink under the action of the jet airflow; R1a gradually increases from a set size to infinity, R1b gradually decreases from a set size to R2b, and the inner diameter of the circular folded reducing tube 204 decreases from φa to φb; the values ​​of φa and φb are determined by the number of folds and the thickness of the tube wall.

[0101] The outlet of the circumferentially folded reduced diameter tube 204 is connected to the dirt tank 5 .

[0102] At the pipe opening of the ejector body 201 adjacent to the circumferential folded reduced diameter pipe 204 , an air intake gap opening is provided between the inner diameter of the pipe opening and the sewage pipe 104 , and the air intake gap opening is connected to the inner cavity of the circumferential folded reduced diameter pipe 204 .

[0103] In some embodiments of the present invention, a wedge-shaped surface is formed at the pipe opening of the ejector body 201 adjacent to the circumferential folded reducing pipe 204, an ejection ring 205 is installed at the pipe opening of the sewage pipe 104, and an ejection slit 206 is formed between the ejection ring 205 and the wedge-shaped surface. The ejection slit 206 is small in size and can increase the flow rate of the ejected gas.

[0104] When the ejector control valve 203 is opened, the air inlet 202 is connected to the high-speed gas, and the gas enters the gap between the ejector body 201 and the wall of the sewage pipe 104, and then enters the inside of the circumferential folded reduced diameter pipe 204 through the air inlet gap between the ejector body 201 and the pipe opening of the sewage pipe 104. The high-speed fluid will reduce the air pressure inside the circumferential folded reduced diameter pipe 204, and a vacuum area will be formed inside the circumferential folded reduced diameter pipe 204, and the sewage will be pumped toward the direction of the sewage tank 5.

[0105] In some embodiments of the present invention, the support structure includes a support tube 207 and a protective tube 208. The support tube 207 is sleeved on the outer periphery of the circumferentially folded reduced diameter tube 204. Fig.12 and Fig.13 . The circumferential folding reducing tube 204 is defined to include a first end tube opening and a second end tube opening, wherein the first end tube opening is close to the injector body 201. The end faces of both sides of the support tube 207 are provided with grooves 2071, and the circumferential folding reducing tube 204 is correspondingly provided with protruding blocks, which can be located in the grooves 2071, so that the support tube 207 can support the folding reducing tube 204. The protective tube 208 is sleeved on the outside of the support tube 207, one end of the protective tube 208 is connected to the injector body 201, and the other end is in contact with the second end tube opening of the folding reducing tube 204; one or more air holes 209 are distributed along the outer peripheral wall of the support tube 207 and the outer peripheral wall of the protective tube 208.

[0106] Use pipes with a diameter of about 30mm as sewage pipes to ensure normal discharge of sewage and avoid waste of energy and materials.

[0107] In the second embodiment of the present invention, the sewage jet accelerator 1 and the ejector 2 can work simultaneously or independently, and the sewage discharge effect is guaranteed.

[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A push-pull toilet, characterized in that: Includes sewage jet accelerator, controller, sewage pipe, toilet bowl and sewage tank; The sewage jet accelerator comprises: a jet accelerator body, a sewage inlet pipe, a jet pipe, a connecting pipe, and a jet control valve; The jet accelerator body forms a sewage buffer zone; The sewage inlet pipe has an upper opening, a sewage receiving port and a toilet bowl sewage discharge port, the upper opening is connected to the connecting pipe and connected to the toilet bowl, the toilet bowl sewage discharge port is connected to the sewage buffer zone, and discharges sewage to the sewage tank through the sewage pipe; The jet pipe is installed at one end of the sewage outlet, and the opening direction of the jet pipe is consistent with the sewage outlet; the jet pipe is connected to the jet control valve, and is connected to the air source or the pressurized water source through the jet control valve, and the jet control valve is electrically connected to the controller to control the connection of the liquid jet source or the gas jet source to the sewage inlet pipe; The connecting pipe is arranged in a vertical direction and is connected to the sewage outlet of the toilet bowl.

2. The push-pull toilet as claimed in claim 1, characterized in that: The sewage inlet pipe is arranged in an L shape relative to the toilet bowl sewage outlet pipe.

3. The push-pull toilet as claimed in claim 1 or 2, characterized in that: The sewage inlet pipe is arranged horizontally, and the connecting port between the jet pipe and the sewage inlet pipe is located below the horizontal center line of the sewage inlet pipe.

4. The push-pull toilet as claimed in claim 1, characterized in that: Also included is an injector, the injector comprising: The ejector body is in the shape of a pipe sleeve, which is sleeved on the pipe mouth of the sewage pipe, and forms a gap for air circulation between the ejector body and the outer wall of the pipe mouth of the sewage pipe. The ejector body is provided with an air inlet; Injector control valve: the air inlet is connected to the air source via the injector control valve, and the injector control valve is electrically connected to the controller; Circumferential folding reducing tube: It is a flexible tube connected to the ejector body through a supporting structure. Several layers of folded sections are formed on the circumference of the main body of the circumferential folding reducing tube. Each layer of folded sections is arranged along the circumference of the folding telescopic tube. The outlet of the circumferential folding reducing tube is connected to the dirt tank. At the pipe opening of the ejector body adjacent to the circumferential folding reducing pipe, an air intake gap opening is provided between the inner diameter of the pipe opening and the sewage pipe, and the air intake gap opening is connected to the inner cavity of the folding reducing pipe.

5. The push-pull toilet as claimed in claim 1, characterized in that: A wedge-shaped surface is formed at the pipe opening of the ejector body and one end adjacent to the circumferential folded reducing pipe, and an ejection ring is installed at the pipe opening of the sewage pipe, and an ejection slit is formed between the ejection ring and the wedge-shaped surface.

6. The push-pull toilet as claimed in claim 1, characterized in that: The sewage jet accelerator also includes a swing gate valve plate, which is swingably connected to the jet accelerator body and is arranged at the first end of the sewage inlet pipe. In the swing closed state, the swing gate valve plate closes the first end pipe opening of the sewage inlet pipe, and in the swing open state, the swing gate valve plate opens the first end pipe opening of the sewage inlet pipe.

7. The push-pull toilet collector as claimed in claim 6, characterized in that: The sewage jet accelerator also includes a top door piston structure, which includes a piston body and a piston located in the piston body. The piston is connected to a top door rod, which passes through the sewage buffer zone and is arranged in the direction of the swing gate valve plate. When the top door rod is driven by the piston to move toward the swing gate valve plate until it contacts the swing gate valve plate, the top door rod stops the swing gate valve plate. When the piston drives the top door rod to move away from the swing gate valve plate and disengage from the swing gate valve plate, the swing gate valve plate can swing.

8. The push-pull toilet collector as claimed in claim 7, characterized in that: The top door piston structure also includes a top door control valve, the piston body is connected to the air source via the top door control valve, and the controller is electrically connected to the top door control valve to control the movement of the piston body.

9. The push-pull toilet collector as claimed in claim 1, characterized in that: It also includes a sound sensor for detecting the sound of the toilet bowl. The controller is electrically connected to the sound sensor and generates a control signal for the jet control valve according to a feedback signal from the sound sensor.

10. The push-pull toilet as claimed in claim 1, characterized in that: The support structure includes a support tube and a protective tube. The support tube is sleeved on the outer circumference of the circumferentially folded reduced diameter tube to support the tube openings at both ends of the circumferentially folded reduced diameter tube. The protective tube is sleeved on the outside of the support tube. One end of the protective tube is connected to the injector body, and the other end is in contact with the tube opening of the circumferentially folded reduced diameter tube. One or more air holes are distributed along the outer circumferential wall of the support tube and the outer circumferential wall of the protective tube.

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