A drainage device on the top of a motorhome
By designing an intelligent drainage system on the top of the RV and using rain sensors and multi-layer filtering devices, the problems of easy blockage and lack of rainwater recovery in the existing technology are solved, efficient drainage and rainwater recovery are achieved, and travel convenience is improved .
Patent Information
- Application Number
- CN202210873199.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2042-07-21
AI Technical Summary
Existing RV drainage devices are prone to blockage and cannot effectively control the drainage flow, resulting in water accumulation and leakage on the roof. There is also a lack of rainwater recovery devices, so you need to back up your own water when traveling, which is inconvenient.
A RV top drainage system including drainage devices, induction devices, filter devices and sewage tanks is designed. The rain sensor is used to control the size of the drainage pipe opening through capacitance changes, and combine multi-layer filtration and water level sensors to achieve intelligent drainage and rainwater recovery.
It effectively solves the problems of water accumulation and leakage on the roof of the RV, ensures drainage effect, realizes rainwater recycling and filtration, and improves travel convenience.
Smart Images
Figure CN115230571B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a drainage device for a recreational vehicle, in particular to a drainage device used on the top of a recreational vehicle, and belongs to the technical field of recreational vehicle manufacturing. Background Art
[0002] Since the height of the RV is relatively high, it is not easy to clean. When water accumulates on the roof for a long time, it is very easy to affect the life of the RV. At the same time, the accumulated water will flow into the vehicle during driving, causing water leakage. The existing drainage device is relatively simple, similar to the floor drain in the home bathroom. After long-term use, the large amount of garbage such as leaves and stones on the top of the RV will accumulate, causing the drain to be blocked. At the same time, since the drainage flow cannot be controlled, it cannot be completely drained on rainy days, which affects the drainage effect.
[0003] Moreover, the RV in the prior art needs to prepare a large amount of on-board water when traveling due to the lack of rainwater recycling devices, especially when traveling in places where it is not convenient to get water, which will bring great inconvenience to the travel. Summary of the invention
[0004] The purpose of the present invention is to provide a drainage device on the roof of a motorhome in view of the defects in the prior art.
[0005] In order to achieve the above purpose, the present invention proposes a drainage device on the top of a motorhome, comprising a drainage device, a sensing device, a filtering device and a sewage tank connected in sequence; the drainage device comprises a drain disposed on the top of the motorhome and a sealing plug installed on the top of the drain, the bottom of the drain is connected to an adapter, the end of the adapter is connected to a drainage hose, the other end of the drainage hose is connected to a filter, the end of the filter is connected to the water inlet of the sewage tank through a pipeline, the sewage tank is installed in the middle of the chassis of the motorhome, and its water outlet is connected to the water inlet pipe of the motorhome toilet;
[0006] The sensing device is arranged on the roof panel of the RV and is fixedly installed by a base embedded in the roof panel. The base is arranged on the edge of the sealing plug and is fixed by 4 M4*10 self-tapping screws.
[0007] Furthermore, the sensing device is a rain sensor, including a sensor plate and a fixing seat, one end of the fixing seat is provided with a connecting shaft, and is fixedly connected to the adapter via the connecting shaft.
[0008] Furthermore, the rain sensor senses the difference in the amount of water in contact with the outer plate of the top compartment, causing the static capacitance sensed by the outer plate of the top compartment to change differently, thereby controlling the size of the drainage pipe opening and achieving the purpose of controlling the amount of water discharged.
[0009] A control valve is provided at the opening of the drain pipe. The opening size of the drain pipe is changed by the control valve according to the amount of water. The calculation formula is:
[0010] C = ε * S / d,
[0011] Among them, S is the electrostatic area, and the interval d between the electrodes remains unchanged. The capacitance C is only determined by the dielectric constant ɛ. Since the dielectric constant ɛ values of water and air are different, C changes with the size of raindrops. The change of electrostatic capacitance is used to change the oscillation frequency of the oscillation circuit, thereby controlling the size of the drain pipe opening.
[0012] Furthermore, the sewage tank is made of low-density polyethylene, and a drain pipe connected to the toilet is installed on one side of the bottom. A top cover is installed on the top, and a water inlet is opened on the top cover. The water inlet is connected to the filter through a pipe; the sewage tank is provided with a mounting bracket, and the mounting bracket is fixed to the RV chassis subframe by a fastener arranged at the bottom thereof.
[0013] Furthermore, the sewage tank also includes a water level sensor, and the upper surface of the tank body is provided with a water level sensor installation hole for the water level sensor to extend into.
[0014] Furthermore, the filter receives rainwater and further filters out foreign matter such as residual stones. The filter includes an external shell and a filter layer arranged in the shell. The filter layers are a coarse filter layer, a fine filter layer and an activated carbon layer from top to bottom. The coarse filter layer is densely distributed pebbles, and the fine filter layer is quartz sand with a filtration accuracy of 50μm, which can filter fine impurities such as mud; the activated carbon layer has a filtration accuracy of 10μm, which can absorb tiny impurities.
[0015] Furthermore, the drainer is fastened to the sealing plug by bolts.
[0016] Furthermore, a sealing leather ring is sleeved along the circumference of the sealing plug to prevent rainwater from flowing out.
[0017] Furthermore, the sewage tank is connected to various water-using components in the vehicle through pipelines, and a control valve is provided on the pipeline, and the control valve is used to open and close the pipeline.
[0018] The beneficial effects of the present invention are as follows: the present invention solves the problem of water accumulation on the roof of a motorhome through a complete set of drainage devices; the drainage pipe cleverly utilizes embedded aluminum to ensure the sealing and waterproofness of the vehicle body while also making the drainage pipe invisible, thereby achieving the purpose of aesthetics; the layered combination of plugging and rubber joints ensures the sealing effect of the entire set of drainage devices. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below in conjunction with the accompanying drawings.
[0020] Figure 1 It is a structural schematic diagram of the present invention.
[0021] Description of the drawings: 1-sealing plug, 2-drainer, 3-rainfall sensor, 4-sealing leather ring, 5-adapter, 6-drain hose, 7-filter, 8-sewage tank. DETAILED DESCRIPTION
[0022] This embodiment provides a drainage device on the top of a motorhome, the structure of which is as follows Figure 1 As shown, it includes a drainage device, a sensing device, a filtering device and a sewage tank which are connected in sequence.
[0023] The drainage device is composed of a drain, a sealing plug and other related components. The sealing plug is installed at the top of the drain and is fastened by bolts. At the same time, a sealing leather ring is sleeved along the circumference of the sealing plug to facilitate the function of collecting rainwater and prevent rainwater from flowing out. The drain is installed at the top of the RV, and its bottom is connected to the adapter, and a drainage hose is connected through the adapter. The other end of the drainage hose is connected to the filter device, and a control valve is provided at the opening of the drainage hose. According to the amount of water, the opening size of the drainage hose is changed through the control valve.
[0024] The filter receives rainwater through the filter inside it, and further filters out foreign matter such as residual stones. The filter includes an external shell and a filter layer arranged inside the shell, which is a coarse filter layer, a fine filter layer and an activated carbon layer from top to bottom. Among them, the coarse filter layer is densely distributed pebbles, the fine filter layer is quartz sand, and the filtration accuracy is 50μm, which can filter fine impurities such as mud, and the filtration accuracy of the activated carbon layer is 10μm, which can absorb tiny impurities.
[0025] The sewage tank is installed in the middle of the RV chassis, and its water inlet is connected to the end of the filter through a pipeline, and the water outlet is connected to the water inlet pipe of the RV toilet. The sewage tank is made of low-density polyethylene, and a drainage pipe connected to the toilet is installed on one side of the bottom, and a top cover is installed on the top, and the top cover has a water inlet, which is connected to the filter through a pipeline; a mounting bracket is provided at the bottom of the sewage tank, and a mounting hole is opened at the bottom of the mounting bracket. The sewage tank is fixedly installed on the RV chassis subframe by fasteners passing through the mounting hole.
[0026] At the same time, a water level sensor is also provided on the sewage tank, and the water level sensor is inserted into the water level sensor installation hole provided on the upper surface of the sewage tank. The sewage tank is connected to various water-using components in the vehicle through a pipeline, and a control valve is provided on the pipeline to open and close the pipeline through the control valve.
[0027] The sensing device is a rain sensor, which is installed on the roof panel of the RV and fixed by a base embedded in the roof panel. The base is set on the edge of the sealing plug and fixed by 4 M4*10 self-tapping screws.
[0028] The rain sensor senses the different amounts of water in contact with the outer panel of the roof compartment, causing different changes in the static capacitance sensed by the outer panel of the roof compartment, thereby controlling the size of the opening of the drainage hose and achieving the purpose of controlling the amount of water discharged.
[0029] The calculation formula is:
[0030] C = ε * S / d,
[0031] Among them, S is the electrostatic area, and the interval d between the electrodes remains unchanged. The capacitance C is only determined by the dielectric constant ɛ. Since the dielectric constant ɛ values of water and air are different, C changes with the size of raindrops. The change of electrostatic capacitance is used to change the oscillation frequency of the oscillation circuit, thereby controlling the size of the drainage hose opening.
[0032] When this embodiment is used, the drainage device on the top is located at the lowest point of the roof. On rainy days, the rain sensor senses the different static capacitance of the roof panel. When the static capacitance is small, the control valve opening is small, and rainwater passes through the filter and enters the water tank after multiple layers of filtration to supply water for toilets, etc. When the static capacitance is large, the control valve opening becomes larger, so that part of the rainwater is directly discharged outside the vehicle.
[0033] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.
Claims
1. A drainage device on the top of a motorhome, characterized in that: It comprises a drainage device, a sensing device, a filtering device and a sewage tank which are connected in sequence; the drainage device comprises a drain arranged on the top of the RV and a sealing plug installed on the top of the drain, the bottom of the drain is connected to an adapter, the end of the adapter is connected to a drainage hose, the other end of the drainage hose is connected to a filter, the end of the filter is connected to the water inlet of the sewage tank through a pipeline, the sewage tank is installed in the middle of the RV chassis, and the water outlet thereof is connected to the water inlet pipe of the RV toilet; The sensing device is a rain sensor, which is arranged on the roof panel of the RV and fixedly installed by a base pre-buried in the roof panel. The base is arranged on the edge of the sealing plug and fixed by 4 M4*10 self-tapping screws; the rain sensor includes a rain sensor plate and a fixing seat thereunder, one end of the fixing seat is provided with a connecting shaft, and is fixedly connected to the adapter by the connecting shaft; the rain sensor senses the different amounts of water in contact with the rain sensor plate, and the static capacitance sensed by the rain sensor plate changes differently, thereby controlling the size of the drain pipe opening and achieving the purpose of controlling the amount of water discharged; A control valve is provided at the opening of the drain pipe. The opening size of the drain pipe is changed by the control valve according to the amount of water. The calculation formula is C=ε*S / d. Among them, S is the electrostatic area, and the interval d between the electrodes remains unchanged. The capacitance C is only determined by the dielectric coefficient ɛ. Since the dielectric coefficient ɛ values of water and air are different, C varies with the size of raindrops. The change of static capacitance is used to change the oscillation frequency of the oscillation circuit, thereby controlling the size of the drain pipe opening; when the static capacitance becomes smaller, the control valve opening becomes smaller, and the rainwater enters the water tank after being filtered through multiple layers of the filter to supply water to the RV toilet; when the static capacitance becomes larger, the control valve opening becomes larger, so that part of the rainwater is directly discharged from the vehicle.
2. The RV roof drainage device according to claim 1, characterized in that: The sewage tank is made of low-density polyethylene, and a drainage pipe connected to the toilet is installed on one side of the bottom. A top cover is installed on the top, and a water inlet is opened on the top cover. The water inlet is connected to the filter through a pipeline; the sewage tank is provided with a mounting bracket, and the mounting bracket is fixedly mounted on the RV chassis subframe by a fastener arranged at the bottom thereof.
3. The RV roof drainage device according to claim 2, characterized in that: The sewage tank also includes a water level sensor. The upper surface of the sewage tank body is provided with a water level sensor installation hole for the water level sensor to extend into.
4. The RV roof drainage device according to claim 1, characterized in that: The filter includes an external shell and a filter layer arranged in the shell, and the filter layers are a coarse filter layer, a fine filter layer and an activated carbon layer from top to bottom. The coarse filter layer is densely distributed pebbles, the fine filter layer is quartz sand, and the filtration accuracy is 50μm. The filtration accuracy of the activated carbon layer is 10μm.
5. The RV roof drainage device according to claim 1, characterized in that: The drainer and the sealing plug are fastened by bolts.
6. The RV roof drainage device according to claim 5, characterized in that: A sealing leather ring is sleeved along the circumference of the sealing plug to prevent rainwater from flowing out.
7. The RV roof drainage device according to claim 1, characterized in that: The sewage tank is connected to various water-using components in the vehicle through pipelines, and a control valve is provided on the pipeline to open and close the pipeline through the control valve.