CN202500194U - Wastewater buoyancy flush toilet water pressing device for rural pit toilet - Google Patents

Abstract

The utility model discloses a wastewater buoyancy flush toilet water pressing device for a rural pit toilet. The device comprises a water tank and a water pressing device, wherein the water pressing device comprises a hollow piston rod which vertically penetrates through the water tank; a lower end of the piston rod is fixedly connected with a piston device connected to a bottom of the water tank in a sealed manner; a water inlet is formed on an upper part of the piston rod; a pedal is arranged on the water inlet; a piston rod side wall hole and a water outlet pipe of which one end extends into the piston rod and which is connected with a through pipe in the piston device are arranged on the piston rod positioned in the water tank; the other end of the water outlet pipe penetrates through a side wall of the water tank to be connected to a water utilization position; and a plurality of water drainage holes are formed at corresponding positions between a bottom of the water tank and the piston device. The water pressing device can realize natural returning to a normal position by using the buoyancy of water without additional structures; and the device uses wastewater, has a simple structure, low cost, long service life and a small number of faults, and is convenient to use and maintain.

Description

Water pressure device for flush toilet in rural dry toilet using buoyancy of waste water

technical field

The utility model relates to a daily necessities, in particular to a water pressing device for flush toilets for rural dry toilets which utilizes the buoyancy of waste water.

Background technique

At present, most household toilets in rural areas are in the form of dry toilets. The defects of this type of dry toilet are well known, such as strong odor and breeding of mosquitoes and flies in summer, which cause serious environmental pollution. my country is vigorously promoting the construction of new countryside, and popularizing flush toilets in rural areas is one of the important contents of improving rural living standards. In this way, common toilet flushing devices and equipment can be used to avoid the smell of feces and the breeding of mosquitoes and flies in summer, and at the same time improve the toilet conditions of villagers.

Chinese patent document CN2665244Y discloses a pedal flushing device, which is only suitable for use in toilets using tap water for flushing. The structure is complicated, the price is expensive, and the water consumption is large, which wastes water resources. Chinese patent document CN2149493Y discloses a water tank pressurizing device for flushing toilets. There is a one-way valve in the suction cylinder. When the hose moves up and down, the water in the water container is sucked into the cylinder or pressed into the toilet tank. The hose in this structure has a short service life and is very prone to failure and air leakage, which affects the normal use of users. Chinese patent document CN201151941Y discloses a pressure-absorbing water device for a toilet flusher, which uses a spring as a return device. The spring is prone to corrosion and fatigue failure, and is frequently replaced, which affects the normal use of the user. Therefore, need badly a kind of simple in structure, with low cost, fault is few, easy maintenance, is applicable to the pressurized water device of flushing toilet with the rural arid lavatory without running water.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a kind of water pressing device for flushing toilets for rural dry toilets which utilizes the buoyancy of waste water. The problem of natural return, and can use waste water, simple structure, easy to use, low cost, long service life, less failure, easy maintenance.

In order to achieve the above object, the utility model adopts the following technical solutions:

A water pressure device for a flush toilet in a rural dry toilet utilizing the buoyancy of waste water, comprising a water tank and a water pressure device, the water pressure device includes a hollow piston rod vertically passing through the water tank, the lower end of the piston rod is connected to the bottom of the water tank The piston device is sealed and fixedly connected. The upper part of the piston rod is provided with a water inlet, and the water inlet is provided with a pedal. The other end of the connected water outlet pipe passes through the side wall of the water tank and is connected to the water place; the bottom of the water tank and the corresponding part of the piston device are provided with a number of water leakage holes.

The water tank includes a water tank cover and a water tank body connected to it through threads.

The water tank cover is provided with an exhaust port, a liquid level gauge extending into the water tank, and a water outlet pipe opening for the water outlet pipe to pass through.

The outlet pipe is provided with a one-way valve.

The pedal is connected with the water inlet through threads.

The water inlet is funnel-shaped, and it is connected with the upper end of the piston rod through threads.

The water inlet and the water leakage hole at the bottom of the water tank are all provided with filter screens.

The piston device includes a piston cylinder connected to the bottom of the water tank through threads, a piston is arranged inside the piston cylinder, the upper end of the piston is fixedly connected with the lower end of the piston rod, and a leather cup with an opening downward is arranged at the lower part of the piston.

The interior of the piston is a closed cavity filled with air, and a through pipe with both upper and lower openings runs through the longitudinal center of the piston. The lower end opening of the through pipe communicates with the piston cylinder inner cavity below the piston, and the upper end opening passes through the nozzle The fixing part is in sealing connection with the lower end of the water outlet pipe; an adjusting gasket is arranged between the through pipe and the inner wall above the inside of the piston.

The cup is fixed on the lower part of the piston through the cup retaining ring.

The piston rod of the utility model passes through the water tank cover and is connected with the piston in the piston cylinder, and the piston and the piston cylinder are dynamically matched; the upper part of the piston cylinder is connected with the bottom of the water tank, and a water leakage hole is arranged at the bottom of the water tank; the side wall of the piston rod is provided with a protruding hole, Connect to the water outlet with the outlet pipe. A water outlet check valve is provided on the water outlet pipe to prevent the pressed water from flowing down again. The water tank cover of the pressurized water device is detachable and can be connected with the water tank in a threaded manner. Similarly, the bottom of the water tank and the piston cylinder are also connected together in a screwed detachable manner.

When using this device, unscrew the pedal that doubles as the water injection port cover to inject water from the water injection port. Water flows into the water tank through the small hole on the side wall of the piston rod, and then enters the piston cylinder through the water leakage hole at the bottom of the water tank. When flushing, one foot steps down on the pedal, and the piston rod connected to the pedal, the piston (the upper half of the piston, the lower half of the piston) and the cup will move downward. Under the resistance of the water, the outer edge of the cup expands when it moves downwards, and it fits tightly on the inner wall of the piston cylinder, which plays a good sealing role. The water pressure in the lower part of the piston cylinder increases greatly, and the water is pressed into the water outlet pipe of the piston rod inner sleeve, and reaches the water place through the water outlet pipe. This completes a flushing operation.

At this time, the lower part of the piston reaches the lowest position, and because the cavity of the piston is full of gas, the piston and the piston rod rise under the buoyancy of the water, driving the water injection port and the pedal to rise. At the same time, the water on the upper part of the piston cylinder flows into the bottom of the piston cylinder from the gap between the cup and the piston cylinder under the action of its own weight, so that the piston is further raised to its original position, which is called reset.

Because the pressure in the piston cylinder is very high during the stepping process, the water flows into the flush toilet from the water outlet through the water outlet pipe at a relatively fast speed, which can achieve a very ideal flushing effect. And the water output of each trampling can basically meet the requirement of flushing the toilet once. The time for the piston to reset can meet the shortest intermittent time for the next use. In this way, the entire operation process is completed in a water-saving and efficient manner.

The beneficial effect of the utility model is that, in rural dry toilets without running water, the waste water is used to flush the toilet, and the piston rod can be reset by using the buoyancy of the waste water without additional return device. The structure is simple, the installation and maintenance are convenient, the water source is domestic wastewater, the price is low, energy saving, environmental protection and sanitation. The material of this device is mainly engineering plastics to prevent corrosion and reduce the cost. Various colors of plastic are available to enhance the appearance of the device. The outlet pipe is connected by a joint, so it is more convenient to install and disassemble. Since the device is small in size, it can be placed in general locations. The utility model can be matched with flush toilets in the design and installation of civil houses, and can also be used for the renovation of flush toilets in existing houses. The device can be used to flush toilets with waste water to save energy.

Description of drawings

Fig. 1 is a structural representation of the utility model;

1. Pedal, 2. Water inlet, 3. Water tank cover, 4. Liquid level gauge, 5. Outlet pipe, 6. Piston rod, 7. Exhaust port, 8. Piston rod side wall hole, 9. Water tank body , 10. Outlet pipe extending hole, 11. Outlet pipe, 12. Upper part of piston, 13. Nozzle fixing piece, 14. Adjusting gasket, 15. Lower part of piston, 16. Leather cup, 17. Leather cup Back-up ring, 18. piston cylinder, 19. one-way valve, 20. strainer, 21. leak hole, 22. pipe.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, a kind of flushing toilet pressurizing device for rural dry toilets utilizing the buoyancy of waste water comprises a water tank and a water pressurizing device, and the water pressurizing device includes a hollow piston rod 6 vertically passing through the water tank, and The 6 lower ends are sealed and fixedly connected with the piston device connected to the bottom of the water tank, the top of the piston rod 6 is provided with a water inlet 2, and the water inlet 2 is provided with a pedal 1 connected by threads, and the pedal 1 doubles as a water tank water inlet cover. The piston rod 6 located in the water tank is provided with a piston rod side wall hole 8 and a water outlet pipe 11 with one end extending into the piston rod 6 and connected to the through pipe 22 in the piston device. The other end of the water outlet pipe 11 is connected through the side wall of the water tank. To the place where the water is used; the bottom of the water tank is provided with a number of water leakage holes 21 corresponding to the piston device.

The water tank includes a water tank cover 3 and a water tank body 9 connected to it by threads. The water tank cover 3 is provided with an exhaust port 7, a liquid level gauge 4 extending into the water tank and a water outlet pipe mouth 5 for the water outlet pipe 11 to pass through. A one-way valve 19 is provided on the water outlet pipe 11 .

The water inlet 2 is funnel-shaped, and it is connected with the upper end of the piston rod 6 by threads. The water inlet 2 and the leak hole 21 at the bottom of the water tank are all provided with a filter screen 20 .

The piston device includes a piston cylinder 18 connected to the bottom of the water tank by threads. The piston cylinder 18 is internally provided with a piston (including the upper half of the piston 12 and the lower half of the piston 15). The upper end of the piston is fixedly connected with the lower end of the piston rod 6. The bowl retaining ring 17 is fixed on a leather bowl 16 with an opening downwards at the bottom of the piston.

The inside of the piston is a closed cavity filled with air, and a through pipe 22 with upper and lower openings runs through the longitudinal center of the piston. The mouth fixing part 13 is in sealing connection with the lower end of the water outlet pipe 11; an adjusting gasket 14 is provided between the said through pipe 22 and the inner wall above the inside of the piston.

The piston rod 6 passes through the water tank cover 3 and is connected to the upper half of the piston 12, and the water outlet pipe 11 is connected to the middle opening of the piston rod 6. to valve 19. The piston cavity is sealed and filled with air. The water tank cover 3 and the water tank 9 are connected into a detachable structure by threads. The lower half of the piston 15 is equal in diameter to the inner wall of the piston cylinder 18, but there is a gap between the two, the piston can reciprocate up and down along the inner wall of the piston cylinder 18, and stroke downwards, the piston passes the water below the lower half of the piston 15 through the water outlet pipe 11 Squeeze out, finish flushing toilet once, during upward stroke, the water that comes from water tank 9 fills up the piston cylinder inner chamber below the piston lower half 15 through leak hole 21, and its buoyancy promotes piston and resets automatically upwards.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (10)

1. A rural dry toilet using the buoyancy of waste water uses a water pressing device for flushing toilet, comprising a water tank and a water pressing device, characterized in that, the water pressing device includes a hollow piston rod that passes vertically through the water tank, and the lower end of the piston rod It is sealed and fixedly connected with the piston device connected to the bottom of the water tank. The upper part of the piston rod is provided with a water inlet, and a pedal is provided on the water inlet. The outlet pipe connected to the through pipe in the piston device, the other end of the outlet pipe passes through the side wall of the water tank and is connected to the water place; the bottom of the water tank and the corresponding part of the piston device are provided with some water leakage holes. 2 . The flushing toilet pressurizing device for rural dry toilets using the buoyancy of waste water according to claim 1 , wherein the water tank includes a water tank cover and a water tank body connected to it by threads. 3 . 3. The flushing toilet pressurizing device for rural dry toilets utilizing the buoyancy of waste water as claimed in claim 2, wherein the water tank cover is provided with an exhaust port, a liquid level gauge extending into the water tank, and a supply outlet The outlet pipe through which the water pipe passes. 4 . The flushing toilet pressurizing device for rural dry toilets using the buoyancy of waste water according to claim 1 , wherein a one-way valve is arranged on the outlet pipe. 5. The flushing toilet pressurizing device for rural dry toilets using the buoyancy of waste water according to claim 1, wherein the pedal is connected to the water inlet through threads. 6. The flushing toilet pressurizing device for rural dry toilets using the buoyancy of waste water according to claim 1, wherein the water inlet is funnel-shaped and connected to the upper end of the piston rod through threads. 7. The flushing toilet pressurizing device for rural aqua toilets using the buoyancy of waste water according to claim 1, characterized in that filter screens are provided at the water inlet and the leak hole at the bottom of the water tank. 8. The rural dry toilet flushing toilet pressurizing device utilizing the buoyancy of waste water as claimed in claim 1, wherein the piston device comprises a piston cylinder connected to the bottom of the water tank by threads, and a piston is arranged inside the piston cylinder. The upper end of the piston is fixedly connected with the lower end of the piston rod, and the lower part of the piston is provided with a leather cup with an opening downward. 9. The flushing toilet pressurizing device for rural aqua toilets using the buoyancy of waste water as claimed in claim 8, wherein the inside of the piston is a closed cavity filled with air, and a vertical center of the piston runs through an upper and lower The through-pipes are all open, the lower opening of the through-pipe communicates with the inner cavity of the piston cylinder below the piston, and the upper-end opening is sealed and connected with the lower end of the outlet pipe through the nozzle fixing piece; There are adjusting shims. 10. The flushing toilet pressurizing device for rural dry toilets using the buoyancy of waste water according to claim 8, wherein the cup is fixed to the lower part of the piston through a cup retaining ring.