Rapid drainage device for sewage tank of motor caravan

Abstract

The utility model relates to the technical field of sewage discharge, and discloses a motor caravan sewage tank rapid discharge device which comprises a sewage discharge tank, a rapid connection mechanism comprises a material conveying pipe, a plurality of spherical limiting blocks are connected in the material conveying pipe in a sliding mode, the close sides of the plurality of spherical limiting blocks make contact with the outside of a discharge port, and the discharge port is connected with the discharge port in a sliding mode. An unlocking block is slidably connected to the outer portion of the conveying pipe, and a reset spring is fixedly connected to the left side of the interior of the unlocking block. According to the sewage discharging device, when sewage can be directly discharged from the outside, the sewage enters the interior of the sewage discharging box through the feeding opening, then flows to the pipeline through guiding of the thrust spring and finally is directly discharged out of the device through the pipeline, and when the sewage cannot be directly discharged, the unlocking block is pushed, so that the unlocking block loosens the limitation on the discharging opening, and the discharging opening is further opened; therefore, the pollution discharge box can be unlimited, and then the pollution discharge box can be carried by pulling the handrail.

Description

Technical Field

[0001] This utility model relates to the field of sewage discharge technology, and in particular to a rapid sewage discharge device for recreational vehicles. Background Technology

[0002] A RV wastewater tank is a device used to collect and store wastewater (such as bath water and handwashing water) used inside the RV. These tanks are typically located under the vehicle or on the side of the cabin, connected to the vehicle's drainage system. The relationship between the wastewater tank and the quick-drainage device is that the device can quickly discharge wastewater at the appropriate time and place, preventing long-term storage and ensuring a clean interior and driving safety. This drainage device is usually designed to be convenient and efficient, allowing owners to easily clean the wastewater tank and keep the RV clean.

[0003] In existing technologies, some recreational vehicle (RV) wastewater tank rapid discharge devices typically achieve rapid wastewater discharge through electrically or manually controlled valves. The working principle is that the liquid level in the wastewater tank is monitored in real time by sensors. When the wastewater reaches a certain level, the control system automatically or through the owner's operation opens the discharge valve. During the discharge process, the device guides the wastewater to an external discharge port through a connecting pipe, thus completing the discharge. To prevent wastewater overflow, rapid discharge devices are generally equipped with overflow protection mechanisms and sealing designs to ensure a safe and efficient discharge process. In summary, wastewater tank rapid discharge devices, through automatic or manually controlled valves combined with a monitoring system, can efficiently and safely discharge wastewater, ensuring the cleanliness and normal function of the RV.

[0004] In existing technologies, many devices employ a single discharge method, such as relying solely on gravity discharge or fixed pipe connections, which cannot meet the needs of different environments. In outdoor campsites lacking sewage pipes, gravity discharge is difficult to achieve rapid emptying; while in locations with special sewage outlet positions, fixed pipes cannot be flexibly connected, resulting in low discharge efficiency or inoperability. Therefore, a rapid discharge device for RV sewage tanks is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a rapid discharge device for RV wastewater tanks, aiming to improve the problems of poor adaptability, low discharge efficiency, and difficulty in operation of some existing RV wastewater tank discharge devices due to their use of a single discharge method (gravity discharge or fixed pipe connection) in complex environments.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid discharge device for a RV sewage tank, comprising a sewage tank, an inlet fixedly connected to the left side of the sewage tank, an outlet fixedly connected to the right side of the sewage tank, a quick connection mechanism fixedly connected inside the outlet, a sealing mechanism fixedly connected to the top of the sewage tank, and a handrail slidably connected inside the sewage tank.

[0007] The quick-connect mechanism includes a feeding pipe, which is slidably connected to the outside of the discharge port. Multiple spherical limiting blocks are slidably connected inside the feeding pipe, with one side of each spherical limiting block in contact with the outside of the discharge port. An unlocking block is slidably connected to the outside of the feeding pipe. A return spring is fixedly connected to the left side of the unlocking block, and the other end of the return spring is fixedly connected to the right side of the outside of the feeding pipe. A leak-proof component is fixedly connected inside the discharge port.

[0008] As a further description of the above technical solution: the sealing mechanism includes two guide blocks, the bottom of the guide blocks is fixedly connected to the top of the sewage tank, a cleaning port is opened inside the top of the sewage tank, a sealing block is slidably connected inside the guide blocks, and the bottom of the sealing block is in contact with the top of the cleaning port;

[0009] As a further description of the above technical solution: the leak-proof component includes a sealing shaft, the outside of which is slidably connected to the inside of the discharge port, a thrust spring is fixedly connected to the right side of the sealing shaft, and a support block is fixedly connected to the other end of the thrust spring, the outside of which is fixedly connected to the inside of the discharge port.

[0010] As a further description of the above technical solution: an I-shaped sealing ring is rotatably connected to the top of the sewage tank, a sewage pipe is fixedly connected inside the I-shaped sealing ring, and a cap is externally threaded to the other end of the sewage pipe;

[0011] As a further description of the above technical solution: a valve is rotatably connected inside the feed inlet, and the outside of the valve is in contact with the inner wall of the feed inlet;

[0012] As a further description of the above technical solution: a fixing ring is provided on the outside of the feeding pipe, a cavity is provided inside the unlocking block, and the reset spring is fixedly connected in the cavity formed by the combination of the cavity and the fixing ring;

[0013] As a further description of the above technical solution: the inside of the conveying pipe is provided with a plurality of spherical grooves, and the outside of the spherical limiting block is slidably connected to the inside of the spherical grooves;

[0014] As a further description of the above technical solution: the discharge port is a Chinese character-shaped tubular block, the outer side of the sealing shaft is slidably connected to the front end of the discharge port, and the outer side of the support block is fixedly connected to the rear end of the discharge port.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, during the daily use of the motorhome, when the external environment allows for direct discharge, sewage enters the interior of the sewage tank through the inlet, then flows to the pipe guided by the thrust spring, and finally exits directly through the pipe. When direct discharge is not possible, the unlocking block is pushed to release the restriction on the outlet, thereby opening the outlet and releasing the restriction on the sewage tank. Then, the handle can be pulled to carry the sewage tank for transport, thus achieving the purpose of discharge and improving the practicality of the device.

[0017] 2. In this utility model, when transporting the sewage box, the valve fixed inside the inlet and the sealing shaft slidably connected inside the outlet cooperate to seal the sewage box, thereby preventing leakage during transportation. The thrust spring and support block fixed on the right side of the sealing shaft cooperate to ensure the stable sealing of the sealing shaft, thereby improving the stability of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a rapid sewage tank discharge device for recreational vehicles proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the cleaning port of a rapid discharge device for a RV wastewater tank proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the sealing shaft of a rapid discharge device for a RV wastewater tank proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Sewage tank; 2. Sewage pipe; 3. I-shaped sealing ring; 4. Guide block; 5. Sealing block; 6. Cleaning port; 7. Feed inlet; 8. Discharge port; 9. Sealing shaft; 10. Thrust spring; 11. Support block; 12. Feeding pipe; 13. Valve; 14. Unlocking block; 15. Spherical limiting block; 16. Return spring; 17. Handrail. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 Figure 3 , Figure 4 This utility model provides an embodiment of a rapid sewage discharge device for a motorhome, comprising a sewage tank 1, which is the core part of this utility model and plays the role of collecting and discharging sewage. An inlet 7 is fixedly connected to the left side of the sewage tank 1, which is responsible for introducing sewage into the tank. An outlet 8 is fixedly connected to the right side of the sewage tank 1, which is the outlet for sewage discharge. A quick connection mechanism is fixedly connected inside the outlet 8 for connecting to external pipes. A sealing mechanism is fixedly connected to the top of the sewage tank 1, and a handle 17 is slidably connected inside the sewage tank 1.

[0026] The quick-connect mechanism includes a conveying pipe 12, which is slidably connected to the outside of the discharge port 8 and its movement is restricted by spherical limiting blocks 15. Multiple spherical limiting blocks 15 are slidably connected inside the conveying pipe 12, ensuring a stable connection. The adjacent sides of the multiple spherical limiting blocks 15 are in contact with the outside of the discharge port 8. An unlocking block 14 is slidably connected to the outside of the conveying pipe 12 and is located outside the conveying pipe 12. The unlocking block 14 is used to quickly unlock the sewage discharge device when sewage discharge is required. A return spring 16 is fixedly connected to the left side of the inside of the locking block 14. The return spring 16 can quickly return to the initial position after the unlocking block 14 is operated, ensuring that the device can be tightly closed when not in use to prevent sewage leakage. The other end of the return spring 16 is fixedly connected to the right side of the outside of the conveying pipe 12. A leak-proof component is fixedly connected inside the outlet 8. A fixing ring is provided on the outside of the conveying pipe 12. A cavity is opened inside the unlocking block 14. The return spring 16 is fixedly connected in the cavity formed by the cavity and the fixing ring. Multiple spherical grooves are opened inside the conveying pipe 12. The outside of the spherical limiting block 15 is slidably connected to the inside of the spherical groove.

[0027] The leak-proof assembly includes a sealing shaft 9, which is slidably connected inside the outlet 8 and works in conjunction with a thrust spring 10 to ensure sealing during sewage discharge. The outer side of the sealing shaft 9 is slidably connected inside the outlet 8. A thrust spring 10 is fixedly connected to the right side of the sealing shaft 9. The thrust spring 10 helps the sealing shaft 9 maintain appropriate pressure to prevent sewage leakage. A support block 11 is fixedly connected to the other end of the thrust spring 10. The support block 11 is fixed together with the sealing shaft 9 inside the outlet 8, further enhancing the leak-proof effect and ensuring a clean and safe sewage discharge process. The outer side of the support block 11 is fixedly connected inside the outlet 8, which is a U-shaped tubular block. The outer side of the sealing shaft 9 is slidably connected inside the front end of the outlet 8, and the outer side of the support block 11 is fixedly connected inside the rear end of the outlet 8.

[0028] Reference Figures 1 to 3 The sealing mechanism includes two guide blocks 4, which are fixed to the top of the sewage tank 1 to support the movement of the sealing block 5. The bottom of the guide block 4 is fixedly connected to the top of the sewage tank 1. A cleaning port 6 is provided inside the top of the sewage tank 1. The cleaning port 6 is located at the top of the sewage tank 1 and is used for later cleaning and maintenance to ensure the cleanliness of the system during long-term use and to prevent the generation of odors. The sealing block 5 is slidably connected inside the guide block 4. The sealing block 5 is slidably installed inside the guide block 4 and is in close contact with the cleaning port 6 at the top of the sewage tank 1 to ensure that the sewage tank 1 does not leak when discharging sewage. The bottom of the sealing block 5 is in contact with the top of the cleaning port 6.

[0029] An I-shaped sealing ring 3 is rotatably connected to the top of the inside of the sewage tank 1. The I-shaped sealing ring 3 is fixedly connected to the top of the inside of the sewage tank 1 to ensure the sealing effect and prevent sewage from leaking out of the tank. A sewage pipe 2 is fixedly connected inside the I-shaped sealing ring 3. The sewage pipe 2 is connected to the cap by a threaded connection. The cap can be used to seal the sewage outlet to prevent sewage from leaking or overflowing during the discharge process. The other end of the sewage pipe 2 is externally threaded with a cap. A valve 13 is rotatably connected inside the feed inlet 7. The outside of the valve 13 is in contact with the inner wall of the feed inlet 7.

[0030] Working principle: During daily use of the RV, when the external environment allows for direct discharge, sewage enters the interior of the sewage tank 1 through the inlet 7, then flows to the pipe guided by the thrust spring 10, and finally is discharged directly through the pipe. When direct discharge is not possible, the unlocking block 14 is pushed, causing the unlocking block 14 to release the pressure on the spherical limiting block 15 inside the outlet 8, thereby releasing the restriction on the outlet 8 and opening the outlet 8. After releasing the restriction on the sewage tank 1, the unlocking block 14 is released, and the unlocking block 14 is reset by the push of the reset spring 16 inside the unlocking block 14.

[0031] When transporting the sewage box 1, the valve 13 fixed inside the feed inlet 7 and the sealing shaft 9 slidably connected inside the discharge outlet 8 cooperate to seal the sewage box 1, thereby preventing leakage during transportation. The thrust spring 10 fixed on the right side of the sealing shaft 9 and the support block 11 cooperate to ensure the stable sealing of the sealing shaft 9, thereby improving the stability of the device.

[0032] After reaching the sewage discharge position, rotate the sewage pipe 2. With the assistance of the H-shaped sealing ring 3, the sewage pipe 2 rotates. Then, open the cap threaded at one end of the sewage pipe 2, and then discharge the sewage inside the sewage tank 1 through the sewage pipe 2. After that, the sealing block 5, which is fixed to the top of the sewage tank 1 by the guide block 4, can be pushed to slide, thereby opening the cleaning port 6. Cleaning water is then poured into the sewage tank 1 through the cleaning port 6 to clean the inside of the sewage tank 1.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid discharge device for a RV wastewater tank, comprising a wastewater tank (1), characterized in that: The sewage tank (1) is fixedly connected to the left side of the inlet (7), the sewage tank (1) is fixedly connected to the right side of the outlet (8), the outlet (8) is fixedly connected to the inside of the quick connection mechanism, the top of the sewage tank (1) is fixedly connected to the sealing mechanism, and the inside of the sewage tank (1) is slidably connected to the handle (17). The quick-connect mechanism includes a feed pipe (12), which is slidably connected to the outside of the outlet (8). Multiple spherical limiting blocks (15) are slidably connected inside the feed pipe (12). The adjacent sides of the multiple spherical limiting blocks (15) are in contact with the outside of the outlet (8). An unlocking block (14) is slidably connected to the outside of the feed pipe (12). A reset spring (16) is fixedly connected to the left side of the inside of the unlocking block (14). The other end of the reset spring (16) is fixedly connected to the right side of the outside of the feed pipe (12). A leak-proof component is fixedly connected inside the outlet (8).

2. The rapid discharge device for a RV wastewater tank according to claim 1, characterized in that: The sealing mechanism includes two guide blocks (4), the bottom of which is fixedly connected to the top of the sewage tank (1). A cleaning port (6) is provided inside the top of the sewage tank (1). A sealing block (5) is slidably connected inside the guide block (4), and the bottom of the sealing block (5) is in contact with the top of the cleaning port (6).

3. The rapid discharge device for a RV wastewater tank according to claim 1, characterized in that: The leak-proof assembly includes a sealing shaft (9), the outside of which is slidably connected to the inside of the discharge port (8), a thrust spring (10) is fixedly connected to the right side of the sealing shaft (9), and a support block (11) is fixedly connected to the other end of the thrust spring (10), the outside of which is fixedly connected to the inside of the discharge port (8).

4. The rapid discharge device for a RV wastewater tank according to claim 1, characterized in that: The top of the sewage tank (1) is rotatably connected to an I-shaped sealing ring (3), and a sewage pipe (2) is fixedly connected inside the I-shaped sealing ring (3). A cap is threaded to the other end of the sewage pipe (2).

5. The rapid discharge device for a RV wastewater tank according to claim 1, characterized in that: The feed inlet (7) is rotatably connected to a valve (13), and the outside of the valve (13) is in contact with the inner wall of the feed inlet (7).

6. The rapid discharge device for a RV wastewater tank according to claim 1, characterized in that: The material conveying pipe (12) is provided with a fixing ring on the outside, and the unlocking block (14) is provided with a cavity inside. The reset spring (16) is fixedly connected in the cavity formed by the cavity and the fixing ring.

7. The rapid discharge device for a RV wastewater tank according to claim 1, characterized in that: The inside of the feed pipe (12) is provided with a plurality of spherical grooves, and the outside of the spherical limiting block (15) is slidably connected to the inside of the spherical grooves.

8. A rapid discharge device for a RV wastewater tank according to claim 3, characterized in that: The discharge port (8) is a Chinese character-shaped tubular block. The outer side of the sealing shaft (9) is slidably connected to the front end of the discharge port (8), and the outer side of the support block (11) is fixedly connected to the rear end of the discharge port (8).

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