Vacuum toilet

Abstract

The present invention relates to the technical field of medical care, and specifically discloses a vacuum toilet, which includes a toilet bowl. The toilet bowl is connected with a flushing pipeline and a sewage discharge pipeline. One end of the flushing pipeline far away from the toilet bowl is connected with a flushing valve body. A pinch valve is provided on the sewage discharge pipeline. The pinch valve includes a shell and an elastic pipe section arranged in the shell. The elastic pipe section is communicated with the sewage discharge pipeline. A pressurizing cavity is formed between the inner wall of the shell and the elastic pipe section. The pressurizing cavity is connected with a pump body for conveying cleaning water into the cavity. An inlet valve body is arranged between the pump body and the pinch valve, and a branch pipe for communicating with the flushing valve body is arranged between the pinch valve and the inlet valve body. The vacuum toilet of the present invention uses the pump body to provide pressure, replaces compressed air with flushing water, and combines the mutual cooperation between the inlet valve body and the flushing valve body to control the opening and closing of the pinch valve, so as to realize sewage suction and maintain the vacuum degree. The overall structure and control system are simple, the product size is small, and the production and maintenance costs are low.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care, and particularly relates to a vacuum toilet Background Art

[0002] With the improvement of living and medical conditions, the average life expectancy has been continuously increasing, and the process of population aging in the world has gradually accelerated. For many elderly and sick people, they may have difficulty moving, and at the same time, the number of disabled and dementia elderly is increasing. How to take meticulous care of their lives is of top priority. The household care device toilet can effectively solve the cleaning of the personal hygiene problems of the elderly and enable the elderly to maintain a high level of personal dignity.

[0003] The existing household care device toilet usually includes a toilet bowl, a waste bin and a vacuum generator. The vacuum generator uses compressed air to generate a suction effect, so that a negative pressure is formed in the waste bin, and then the dirt in the toilet bowl is sucked into the waste bin. However, the compressed air system is huge in size. In order to maintain the vacuum degree of the waste bin, a vacuum sensor is required to monitor the pressure in the bin in real time, resulting in a complex overall structure of the device and a high price, which is not suitable for direct application to the home environment. Summary of the Invention

[0004] The purpose of the present invention is to provide a vacuum toilet for the existing technical status quo. The vacuum toilet of the present invention has a simple structure, low production and maintenance costs.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A vacuum toilet, including a toilet bowl, the toilet bowl is connected with a flushing pipeline and a sewage pipeline, one end of the flushing pipeline far away from the toilet bowl is connected with a flushing valve body, the sewage pipeline is provided with a pinch valve, the pinch valve includes a shell and an elastic pipe section arranged in the shell, the elastic pipe section is communicated with the sewage pipeline, a pressurizing cavity is formed between the inner wall of the shell and the elastic pipe section, the pressurizing cavity is connected with a pump body for conveying cleaning water into the cavity, an inlet valve body is arranged between the pump body and the pinch valve, and a branch pipe for communicating with the flushing valve body is arranged between the pinch valve and the inlet valve body.

[0007] Preferably, the toilet bowl includes a sewage collection cavity, the sewage collection cavity is provided with a flushing water distribution ring, the flushing water distribution ring is provided with a transfer water tank, the flushing pipeline is communicated with the transfer water tank, and the transfer water tank is provided with water distribution holes for communicating with the sewage collection cavity.

[0008] Preferably, the sewage collection cavity is in a funnel-shaped structure, and the sewage pipeline is communicated with the lower end of the sewage collection cavity.

[0009] Preferably, the vacuum toilet is further provided with a high-pressure switch for controlling the pump body.

[0010] Preferably, the pump body is a diaphragm self-priming pump.

[0011] Preferably, one end of the sewage discharge pipe away from the toilet is connected to a sewage tank.

[0012] Preferably, both the flushing valve body and the water inlet valve body are solenoid valves.

[0013] The beneficial effects of the present invention are as follows:

[0014] The vacuum toilet of the present invention uses the pump body to provide pressure, replaces compressed air with flushing water, combines the mutual cooperation between the water inlet valve body and the flushing valve body, controls the opening and closing of the pinch valve, so as to realize sewage suction and maintain the vacuum degree. At the same time, the pressurized water discharged from the pinch valve is used to flush the toilet, without using a complex compressed air generator, eliminating the complex water supercharger and auxiliary system, greatly simplifying the structure of the vacuum toilet, with a simple overall structure and control system, small product size, and low production and maintenance costs. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the vacuum toilet of the present invention when pumping water to pressurize.

[0016] Figure 2 It is a schematic structural diagram of the pinch valve of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the vacuum toilet of the present invention when flushing and sucking sewage. Detailed Embodiments

[0018] The present invention will be further described below in conjunction with the drawings and embodiments:

[0019] Please refer to Figures 1 - 3 As shown, the present invention discloses a vacuum toilet, including a toilet 1, the toilet 1 is connected with a flushing pipe 2 and a sewage discharge pipe 3, one end of the sewage discharge pipe 3 away from the toilet is connected with a sewage tank (not shown), one end of the flushing pipe 2 away from the toilet 1 is connected with a flushing valve body 4, the sewage discharge pipe 3 is provided with a pinch valve 5, the pinch valve 5 includes a housing 51 and an elastic pipe section 53 arranged in the housing 51. In this embodiment, the elastic pipe section 53 is a rubber pipe, the elastic pipe section 53 is communicated with the sewage discharge pipe 3, a pressurizing cavity 52 is formed between the inner wall of the housing 51 and the elastic pipe section 53, the pressurizing cavity 52 is connected with a pump body 6 for conveying cleaning water into the cavity, an inlet valve body 7 is arranged between the pump body 6 and the pinch valve 5, and a branch pipe 8 for communicating with the flushing valve body 4 is arranged between the pinch valve 5 and the inlet valve body 7.

[0020] The using method of the vacuum toilet of the present invention includes the following steps:

[0021] 1) Pumping water to pressurize: Refer to Figure 1As shown, open the water inlet valve body 7 and close the flushing valve body 4. Subsequently, the pump body 6 pumps water into the pressurizing chamber 52. As the water volume increases, the elastic pipe section 53 is flattened under the water pressure and forms a closed state. When the water pressure reaches the set pressure of the high-pressure switch 10, the high-pressure switch 10 sends a signal to control the pump body 6 to close. At this time, the pipe sections of the sewage discharge pipe 3 between the two ends of the pinch valve 5 cannot communicate;

[0022] 2) Flushing and sewage suction: Refer to Figure 3 As shown, open the flushing valve body 4 and close the water inlet valve body 7. At this time, the water in the pressurizing chamber 52 is conveyed to the branch pipe 8 under its own pressure and enters the toilet 1 through the flushing valve body 4 to flush the toilet 1. Since the water pressure in the pressurizing chamber 52 is released, the elastic pipe section 53 in the pinch valve 5 returns to its original state under its own elasticity. At the same time, the sewage after flushing in the toilet 1 is sucked into the sewage tank through the sewage discharge pipe 3 under negative pressure.

[0023] The vacuum toilet of the present invention uses the pump body 6 to provide pressure, replaces compressed air with flushing water, and combines the mutual cooperation between the water inlet valve body 7 and the flushing valve body 4 to control the opening and closing of the pinch valve 5, thereby realizing sewage suction and maintaining the vacuum degree. At the same time, the pressurized water discharged from the pinch valve 5 is used to flush the toilet 1. There is no need to use a complex compressed air generator, eliminating the complex water booster and auxiliary systems, greatly simplifying the structure of the vacuum toilet. The overall structure and control system of the product are simple, the product size is small, and the production and maintenance costs are low.

[0024] The toilet 1 includes a sewage collection chamber. The sewage collection chamber is provided with a flushing water distribution ring 9. The flushing water distribution ring 9 is provided with a transfer water tank. The flushing pipeline 2 is connected to the transfer water tank, and the transfer water tank is provided with water distribution holes for communicating with the sewage collection chamber.

[0025] The flushing water distribution ring 9 plays a role in distributing water, which is conducive to flushing the sewage collection chamber more evenly. The pressurized water in the pinch valve 5 is conveyed to the flushing water distribution ring 9 through the branch pipe 8 and is evenly dispersed through the water distribution holes of the flushing water distribution ring 9 to flush the sewage collection chamber. Subsequently, after the elastic pipe section 53 gradually returns to its original state, it is sucked into the sewage tank through the sewage discharge pipe 3.

[0026] The sewage collection chamber has a funnel-shaped structure, and the sewage discharge pipe 3 is connected to the lower end of the sewage collection chamber.

[0027] The pump body 6 is a diaphragm self-priming pump.

[0028] Both the flushing valve body 4 and the water inlet valve body 7 are solenoid valves.

[0029] The vacuum toilet is also provided with a high-pressure switch 10 for controlling the pump body 6. In this embodiment, the high-pressure switch 10 is a high-pressure switch of model HPS-150 produced by Zhejiang Kebo Electric Appliance Co., Ltd.

[0030] In use, when the pump body 6 continuously pumps water into the pressurizing chamber 52, the water pressure continuously rises. When the high-pressure switch 10 detects that the water pressure is higher than the set threshold, the high-pressure switch 10 controls the pump body 6 to close.

[0031] By controlling the pump body 6 by the high-pressure switch 10 according to the water pressure in the pinch valve 5, the control system is further simplified, making the overall structure and control of the product simpler and more convenient.

[0032] Certainly, the above illustrations are only preferred embodiments of the present invention, and are not intended to limit the scope of use of the present invention. Therefore, all equivalent changes made on the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum toilet, comprising a toilet bowl, the toilet bowl being connected with a flushing pipe and a sewage discharge pipe, characterized in that, one end of the flushing pipe away from the toilet bowl is connected with a flushing valve body, a pinch valve is arranged on the sewage discharge pipe, the pinch valve comprises a shell and an elastic pipe section arranged in the shell, the elastic pipe section is communicated with the sewage discharge pipe, a pressurizing cavity is formed between the inner wall of the shell and the elastic pipe section, a pump body for conveying cleaning water into the cavity is connected to the pressurizing cavity, an inlet valve body is arranged between the pump body and the pinch valve, and a branch pipe for communicating with the flushing valve body is arranged between the pinch valve and the inlet valve body.

2. The vacuum toilet according to claim 1, characterized in that, the toilet bowl comprises a sewage collection cavity, a flushing water distribution ring is arranged in the sewage collection cavity, a transfer water tank is arranged on the flushing water distribution ring, the flushing pipe is communicated with the transfer water tank, and water distribution holes for communicating with the sewage collection cavity are arranged through the transfer water tank.

3. The vacuum toilet according to claim 2, characterized in that, the sewage collection cavity is in a funnel-shaped structure, and the sewage discharge pipe is communicated with the lower end of the sewage collection cavity.

4. The vacuum toilet according to any one of claims 1 to 3, characterized in that, the vacuum toilet is further provided with a high-pressure switch for controlling the pump body.

5. The vacuum toilet according to claim 4, characterized in that, the pump body is a diaphragm self-priming pump.

6. The vacuum toilet according to any one of claims 1 to 3, characterized in that, one end of the sewage discharge pipe away from the toilet bowl is connected with a sewage tank.

7. The vacuum toilet according to any one of claims 1 to 3, characterized in that, both the flushing valve body and the inlet valve body are solenoid valves.

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