Sewage treatment device convenient for sewage disposal for motor home

Abstract

The invention belongs to the technical field of touring car sewage treatment, and discloses a touring car sewage treatment device convenient for sewage disposal, which comprises a grey water tank; the filter screen frame is movably mounted at the top of the inner cavity of the ash water tank, and a filter medium is arranged in the filter screen frame; the lifting assembly is fixedly installed in the inner cavity of the ash water tank, and the lifting assembly is located below the filter screen frame; according to the technical scheme, through the lifting assembly and the driving assembly, by starting the driving assembly, the output end of the driving part of the driving assembly drives the two side parts to move back to back or face to face, and then the bottom end parts on the two sides pull the bottom part of the lifting assembly to move up and down in a reciprocating mode; the filter screen frame and the filter medium are driven to integrally shake up and down, so that impurities at the top of the filter screen frame can be scattered, the influence of impurity accumulation on subsequent sewage filtration is finally avoided, and the sewage filtration efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of recreational vehicle sewage treatment, and in particular is a sewage treatment device for recreational vehicles which is convenient for cleaning sewage. Background Art

[0002] RV sewage treatment device is a key equipment to ensure the hygiene and environmental protection of RV travel. Its design must take into account both functionality and convenience. Common types of RV sewage treatment devices can be divided into gray water tank and black water tank separation systems, among which; 1. Gray water tank: collects clean wastewater such as bathing water and hand washing water. It usually has a large capacity (e.g., 100-200 liters) and can be discharged to a dedicated sewer in the camp or a compliant area in the field by gravity or electric pump; 2. Black water tank: It stores toilet sewage and has a small capacity (such as 20-40 liters). It needs to be used with a degradation agent to reduce odor. When discharging, it needs to be connected to the camp sewage treatment facilities or use a mobile sewage station.

[0003] When collecting and treating sewage inside the RV, the existing gray water tank usually uses corresponding filter media for filtering, so that the filtered water can be introduced into the toilet for full utilization of the water. However, since the sewage is introduced in a vertical direction, the impurities inside the sewage will accumulate and clog the top of the filter medium, affecting the sewage filtration efficiency. Therefore, it needs to be improved. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a sewage treatment device for RVs that is easy to clean, and has the advantage of vibrating and evenly dispersing impurities in sewage.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sewage treatment device for a recreational vehicle that is easy to clean, comprising a gray water tank, and also comprising: a filter rack, the filter rack being movably mounted on the top of the gray water tank inner cavity, a filter medium being arranged inside the filter rack; a lifting assembly, the lifting assembly being fixedly mounted on the gray water tank inner cavity, and the lifting assembly being located below the filter rack; a driving assembly, the driving assembly being arranged inside the gray water tank, and the driving assembly being located at the outer end of one side of the lifting assembly; wherein the driving assembly comprises a fixing seat fixedly mounted on the inner cavity of one side of the gray water tank, the fixing seat being located at the top of the outer end of one side of the lifting assembly, a driving motor being arranged on one side of the fixing seat, sliding blocks being threadedly sleeved on both sides of the middle part of the output end of the driving motor, and a linkage arm being movably sleeved between one side of the sliding block and the middle part of one side of the lifting assembly.

[0006] Preferably, the output end of the drive motor extends to the inner cavity of the other end of the fixing seat, and the output end of the drive motor is movably connected to the inner cavity of the fixing seat. The output end of the drive motor adopts a double-thread design and the double threads are in opposite directions.

[0007] Preferably, the middle of the top of the gray water tank is fixedly connected to a water inlet pipe, and the bottom end of one side of the gray water tank is fixedly connected to a drain valve pipe.

[0008] Preferably, the lifting assembly includes a fixed frame, a lifting top plate and a movable frame; The fixed frame is fixedly installed in the inner cavity of the gray water tank, and the fixed frame is located at the bottom of the filter frame, the lifting top plate is movably installed between the inner sides of the fixed frame, the movable frame is fixedly installed on the outer side of the lifting top plate, and the movable frame is located in the inner cavity on one side of the gray water tank.

[0009] Preferably, both sides of the middle portion of the outer end of the movable frame are movably sleeved with the bottom end of the linkage arm.

[0010] Preferably, an auxiliary spreading mechanism is movably installed on the top of the filter rack, and the auxiliary spreading mechanism includes a spreading plate, a connecting rod, a shielding component, a fixing box and a sliding limit groove; The pushing plate is movably installed on both sides of the middle part of the top of the filter frame, the connecting rod is fixedly installed on the middle part of the outer side of the pushing plate, the shielding assembly is arranged inside the outer end of the connecting rod, and the shielding assembly is located in the inner cavity of the gray water tank, the fixed box is fixedly installed on the outer side of the top of the gray water tank, the sliding limit groove is opened on the inner side of the two ends of the fixed box, and one side of the outer end of the connecting rod extends to the inner wall of the sliding limit groove.

[0011] Preferably, the shielding assembly includes a limiting rod, a shielding frame and a first spring; The limiting rod is fixedly installed inside the outer end of the connecting rod, the blocking frame is movably installed on the surface of the outer end of the connecting rod, the inner end of the blocking frame is slidably connected to the surface of the limiting rod, and the inner end of the blocking frame is elastically connected to the inner wall of the connecting rod through a first spring.

[0012] Preferably, the surface of the limiting rod is slidably connected to the interior of the first spring.

[0013] Preferably, a reset assembly is provided inside the gray water tank between the sliding limit groove and the shielding assembly, and the reset assembly includes a reset push rod and a second spring; The reset push rod is slidably connected to the top of the outer end of the connecting rod, and the top end of the reset push rod is slidably connected to the inner cavity of the gray water tank. The top surface of the bottom end of the reset push rod is elastically connected to the inner wall of the gray water tank through a second spring.

[0014] Preferably, a fixed baffle is provided on one side of the gray water tank and is in contact with one side of the filter frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The above technical solution uses a lifting assembly and a driving assembly. By starting the driving assembly, the output end of the driving part of the driving assembly will drive the two side parts to move away from each other or towards each other, and then the bottom parts on both sides will pull the bottom part of the lifting assembly to move up and down, so as to simultaneously drive the filter frame and the filter medium as a whole to swing up and down, which can disperse the impurities on the top of the filter frame, and ultimately avoid the accumulation of impurities affecting subsequent sewage filtration, thereby greatly improving the efficiency of sewage filtration.

[0016] The present invention uses an auxiliary pushing and dispersing mechanism and a reset component. When the lifting component, the filter mesh frame and the filter medium are driven upward as a whole, the inner part of the auxiliary pushing and dispersing mechanism will be pushed upward at the same time, while the inner part of the auxiliary pushing and dispersing mechanism is restricted by the outer end part and thus moves in opposite directions, so as to assist in pushing the impurities on the top of the filter mesh frame to spread quickly and compress the reset component. Then, when the lifting component, the filter mesh frame and the filter medium move downward as a whole, the reset component will be released to push the auxiliary pushing and dispersing mechanism as a whole to reset, which can ultimately greatly improve the uniform efficiency of impurity vibration dispersal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic cross-sectional view of the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the side of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the fixed baffle of the present invention; Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at A in the middle; Figure 6 Schematic diagram of the cross-sectional structure of the connecting rod of the present invention; Figure 7 for Figure 6 Schematic diagram of the local enlarged structure at B in the middle; Figure 8 It is a structural schematic diagram of the filter rack of the present invention.

[0018] In the figure: 1. Gray water tank; 2. Water inlet pipe; 3. Drain valve pipe; 4. Filter mesh frame; 5. Filter medium; 6. Lifting assembly; 601. Fixed frame; 602. Lifting top plate; 603. Movable frame; 7. Driving assembly; 701. Fixed seat; 702. Driving motor; 703. Sliding block; 704. Linkage arm; 8. Auxiliary spreading mechanism; 801. Spreading plate; 802. Connecting rod; 803. Shielding assembly; 8031. Limiting rod; 8032. Shielding frame; 8033. First spring; 804. Fixed box; 805. Sliding limiting groove; 9. Reset assembly; 901. Reset top rod; 902. Second spring; 10. Fixed baffle. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 8 As shown, the present invention provides a sewage treatment device for a recreational vehicle that is easy to clean, including a gray water tank 1, and also includes: a filter rack 4, which is movably installed on the top of the inner cavity of the gray water tank 1, and a filter medium 5 is arranged inside the filter rack 4; a lifting assembly 6, which is fixedly installed in the inner cavity of the gray water tank 1, and the lifting assembly 6 is located below the filter rack 4; a driving assembly 7, which is arranged inside the gray water tank 1, and the driving assembly 7 is located at the outer end of one side of the lifting assembly 6; wherein the driving assembly 7 includes a fixing seat 701 fixedly installed in the inner cavity of one side of the gray water tank 1, the fixing seat 701 is located at the top of the outer end of one side of the lifting assembly 6, and a driving motor 702 is provided on one side of the fixing seat 701, and sliding blocks 703 are threadedly connected on both sides of the middle part of the output end of the driving motor 702, and a linkage arm 704 is movably connected between one side of the sliding block 703 and the middle part of one side of the lifting assembly 6.

[0021] By driving the motor 702, the output end can drive the two sliding blocks 703 to move in opposite directions or towards each other, and then the linkage arm 704 will deflect back and forth to drive the lifting assembly 6, the filter rack 4 and the filter medium 5 to swing up and down as a whole, so as to facilitate the dispersion of impurities on the top of the filter rack 4.

[0022] like Figure 5 As shown, the output end of the drive motor 702 extends to the inner cavity of the other end of the fixing seat 701, and the output end of the drive motor 702 is movably connected to the inner cavity of the fixing seat 701. The output end of the drive motor 702 adopts a double-thread design and the double threads are in opposite directions.

[0023] By adopting the above solution, the two sliding blocks 703 can be driven to move toward or away from each other by designing the output end of the driving motor 702 with double threads in opposite directions.

[0024] like Figure 2 and Figure 3 As shown, the middle of the top of the gray water tank 1 is fixedly connected to a water inlet pipe 2, and the bottom end of one side of the gray water tank 1 is fixedly connected to a drain valve pipe 3.

[0025] The above solution is adopted: through the design of the water inlet pipe 2 and the drain valve pipe 3, the water inlet pipe 2 can be connected with the bath water and hand washing water pipeline system, so that the sewage can smoothly enter the gray water tank 1 through the water inlet pipe 2, and then the toilet water supply system can be connected through the design of the drain valve pipe 3, so that the filtered sewage can be introduced into the toilet, thereby improving water utilization efficiency.

[0026] like Figure 3 and Figure 8 As shown, the lifting assembly 6 includes a fixed frame 601, a lifting top plate 602 and a movable frame 603; The fixed frame 601 is fixedly installed in the inner cavity of the gray water tank 1, and the fixed frame 601 is located at the bottom of the filter frame 4, the lifting top plate 602 is movably installed between the inner sides of the fixed frame 601, and the movable frame 603 is fixedly installed on the outer side of the lifting top plate 602, and the movable frame 603 is located in the inner cavity on one side of the gray water tank 1.

[0027] With the above solution, the design of the fixing frame 601 can support the filter frame 4 and the filter medium 5 located on the top thereof as a whole.

[0028] like Figure 3 and Figure 8 As shown, both sides of the middle portion of the outer end of the movable frame 603 are movably connected to the bottom end of the linkage arm 704.

[0029] With the above solution, by providing the movable frame 603 , when the sliding block 703 deflects, the movable frame 603 and the lifting top plate 602 can be driven to move up and down as a whole.

[0030] like Figure 7 As shown, an auxiliary spreading mechanism 8 is movably installed on the top of the filter frame 4, and the auxiliary spreading mechanism 8 includes a spreading plate 801, a connecting rod 802, a shielding component 803, a fixing box 804 and a sliding limit groove 805; The push-out plate 801 is movably installed on both sides of the middle part of the top of the filter frame 4, the connecting rod 802 is fixedly installed in the middle part of the outer side of the push-out plate 801, the shielding component 803 is arranged inside the outer end of the connecting rod 802, and the shielding component 803 is located in the inner cavity of the gray water tank 1, the fixed box 804 is fixedly installed on the outer side of the top of the gray water tank 1, the sliding limit groove 805 is opened on the inner side of the two ends of the fixed box 804, and one side of the outer end of the connecting rod 802 extends to the inner wall of the sliding limit groove 805.

[0031] The above solution is adopted: by providing a sliding limit groove 805, when the push plate 801 and the connecting rod 802 are pushed upward as a whole by the filter frame 4 and the filter medium 5, the outer end protruding part of the connecting rod 802 will be limited by the sliding limit of the inner wall of the sliding limit groove 805, causing the two connecting rods 802 and the push plate 801 to move away from each other.

[0032] like Figure 7 As shown, the shielding assembly 803 includes a limiting rod 8031, a shielding frame 8032 and a first spring 8033; The limiting rod 8031 ​​is fixedly installed inside the outer end of the connecting rod 802, and the blocking frame 8032 is movably installed on the surface of the outer end of the connecting rod 802. The inner end of the blocking frame 8032 is slidingly connected to the surface of the limiting rod 8031, and the inner end of the blocking frame 8032 is elastically connected to the inner wall of the connecting rod 802 through the first spring 8033.

[0033] By adopting the above solution, the shielding frame 8032 can be pushed outward by the elastic force of the first spring 8033 , so that the limiting rod 8031 ​​can seal the sliding groove between the connecting rod 802 and the gray water tank 1 .

[0034] like Figure 7 As shown, the surface of the limiting rod 8031 ​​and the interior of the first spring 8033 are slidably connected.

[0035] With the above solution, through the design of the limiting rod 8031 ​​, the blocking frame 8032 can be limited in sliding and the first spring 8033 can be limited in telescopic movement simultaneously.

[0036] like Figure 7 As shown, the interior of the gray water tank 1 is provided with a reset assembly 9 located between the sliding limit groove 805 and the shielding assembly 803. The reset assembly 9 includes a reset push rod 901 and a second spring 902. The reset rod 901 is slidably connected to the top of the outer end of the connecting rod 802, and the top end of the reset rod 901 is slidably connected to the inner cavity of the gray water tank 1, and the top surface of the bottom end of the reset rod 901 is elastically connected to the inner wall of the gray water tank 1 through the second spring 902.

[0037] With the above solution, the elastic force of the second spring 902 can push the reset push rod 901 to squeeze and push the connecting rod 802 to move downward as a whole, which can facilitate buffering the upward movement of the connecting rod 802 and provide power when it moves downward.

[0038] like Figure 2 As shown, a fixed baffle 10 is provided on one side of the gray water tank 1 and is in contact with one side of the filter frame 4 .

[0039] The above solution is adopted: wherein the fixed baffle 10 is fixedly connected to one side of the gray water tank 1 by bolts, so that the filter frame 4 and the filter medium 5 can be confined laterally in the inner cavity of the gray water tank 1. When cleaning, the bolts on one side of the fixed baffle 10 can be rotated and removed to remove the fixed baffle 10, and finally the filter frame 4 and the filter medium 5 can be taken out for cleaning.

[0040] The working principle and use process of the present invention: First, when the sewage enters the gray water tank 1 through the water inlet pipe 2 and passes through the filter frame 4 and the filter medium 5 for filtration, the filtered water can be guided through the drain valve pipe 3 and transported to the toilet water pipe system, which is convenient for subsequent water supply to the toilet and improves water utilization.

[0041] Then, when the speed of sewage being introduced into the gray water tank 1 slows down, it means that impurities have accumulated and blocked the top of the filter rack 4, affecting the filtration and drainage. At this time, the drive motor 702 can be started. Due to the double-thread design of the output end of the drive motor 702, the two sliding blocks 703 can be smoothly driven to move in opposite directions or towards each other, so that the linkage arm 704 deflects and pulls the movable frame 603 and the lifting top plate 602 to move up and down as a whole, thereby driving the filter rack 4 and the filter medium 5 to move up and down as a whole.

[0042] At the same time, the filter rack 4 can push the push plate 801 and the connecting rod 802 upward as a whole, and then the outer end of the connecting rod 802 will be limited by the inner wall of the sliding limit groove 805 on the inner side of the two ends of the fixed box 804, which will cause the connecting rod 802 and the push plate 801 to move oppositely. When the connecting rod 802 is opposite to each other, it will squeeze and push the shielding frame 8032 to slide along the surface of the limit rod 8031 ​​and compress the first spring 8033. At this time, the shielding frame 8032 can maintain the sealing of the slide groove between the gray water tank 1 and the connecting rod 802, and Then, through the upward movement of the connecting rod 802, the reset top rod 901 will be pushed upward and the second spring 902 will be compressed. After that, when the filter rack 4 drives the filter medium 5 as a whole downward, the elastic force of the second spring 902 will be released to push the reset top rod 901, the connecting rod 802 and the pushing plate 801 to reset. Finally, the impurities are shaken off by the overall up and down shaking of the filter rack 4 and the filter medium 5, and the opposite movement of the connecting rod 802 and the pushing plate 801 will push the impurities on the top of the filter rack 4 to diffuse outward, so as to assist in pushing the impurities on the top of the filter rack 4 to vibrate and diffuse quickly and evenly.

[0043] When it is necessary to clean the impurities and dirt on the top of the filter frame 4, the fixed baffle 10 can be removed to remove the filter frame 4 and the filter medium 5 for cleaning.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device for a recreational vehicle that is easy to clean, comprising a gray water tank (1), characterized in that: Also includes; A filter rack (4), the filter rack (4) being movably mounted on the top of the inner cavity of the gray water tank (1), and a filter medium (5) being provided inside the filter rack (4); A lifting assembly (6), wherein the lifting assembly (6) is fixedly mounted in the inner cavity of the gray water tank (1), and the lifting assembly (6) is located below the filter rack (4); A driving assembly (7), wherein the driving assembly (7) is arranged inside the gray water tank (1), and the driving assembly (7) is located at the outer end of one side of the lifting assembly (6); The driving assembly (7) includes a fixed seat (701) fixedly installed in the inner cavity of one side of the gray water tank (1), the fixed seat (701) is located at the top of the outer end of one side of the lifting assembly (6), a driving motor (702) is provided on one side of the fixed seat (701), sliding blocks (703) are threadedly sleeved on both sides of the middle part of the output end of the driving motor (702), and a linkage arm (704) is movably sleeved between one side of the sliding block (703) and the middle part of one side of the lifting assembly (6).

2. The sewage treatment device for RVs according to claim 1 is characterized in that: The output end of the drive motor (702) extends to the inner cavity of the other end of the fixing seat (701), and the output end of the drive motor (702) is movably connected to the inner cavity of the fixing seat (701). The output end of the drive motor (702) adopts a double-thread design and the double threads are in opposite directions.

3. The sewage treatment device for RVs according to claim 1, characterized in that: The middle of the top of the gray water tank (1) is fixedly connected to a water inlet pipe (2), and the bottom of one side of the gray water tank (1) is fixedly connected to a drain valve pipe (3).

4. The sewage treatment device for RVs according to claim 1 is characterized in that: The lifting assembly (6) includes a fixed frame (601), a lifting top plate (602) and a movable frame (603); The fixed frame (601) is fixedly mounted on the inner cavity of the gray water tank (1), and the fixed frame (601) is located at the bottom of the filter frame (4); the lifting top plate (602) is movably mounted between the inner sides of the fixed frame (601); the movable frame (603) is fixedly mounted on the outer side of the lifting top plate (602), and the movable frame (603) is located in the inner cavity of one side of the gray water tank (1).

5. The sewage treatment device for RVs according to claim 4 is characterized in that: Both sides of the middle portion of the outer end of the movable frame (603) are movably sleeved with the bottom end of the linkage arm (704).

6. The sewage treatment device for RVs according to claim 1, characterized in that: An auxiliary spreading mechanism (8) is movably installed on the top of the filter rack (4), and the auxiliary spreading mechanism (8) comprises a spreading plate (801), a connecting rod (802), a shielding component (803), a fixing box (804) and a sliding limit groove (805); The push plate (801) is movably mounted on both sides of the middle portion of the top of the filter frame (4); the connecting rod (802) is fixedly mounted on the middle portion of the outer side of the push plate (801); the shielding assembly (803) is arranged inside the outer end of the connecting rod (802), and the shielding assembly (803) is located in the inner cavity of the gray water tank (1); the fixed box (804) is fixedly mounted on the outer side of the top of the gray water tank (1); the sliding limit groove (805) is opened on the inner side of both ends of the fixed box (804); and one side of the outer end of the connecting rod (802) extends to the inner wall of the sliding limit groove (805).

7. The sewage treatment device for RVs according to claim 6, characterized in that: The shielding assembly (803) comprises a limiting rod (8031), a shielding frame (8032) and a first spring (8033); The limiting rod (8031) is fixedly mounted inside the outer end of the connecting rod (802); the shielding frame (8032) is movably mounted on the surface of the outer end of the connecting rod (802); the inner end of the shielding frame (8032) is slidably connected to the surface of the limiting rod (8031); and the inner end of the shielding frame (8032) is elastically connected to the inner wall of the connecting rod (802) via a first spring (8033).

8. The sewage treatment device for RVs according to claim 7, characterized in that: The surface of the limiting rod (8031) is slidably connected to the interior of the first spring (8033).

9. The sewage treatment device for RVs according to claim 1, characterized in that: The interior of the gray water tank (1) is provided with a reset assembly (9) located between the sliding limit groove (805) and the shielding assembly (803), and the reset assembly (9) comprises a reset push rod (901) and a second spring (902); The reset rod (901) is slidably connected to the top of the outer end of the connecting rod (802), and the top end of the reset rod (901) is slidably connected to the inner cavity of the gray water tank (1), and the top surface of the bottom end of the reset rod (901) is elastically connected to the inner wall of the gray water tank (1) via a second spring (902).

10. The sewage treatment device for RVs according to claim 1, characterized in that: A fixed baffle (10) is provided on one side of the gray water tank (1) and is fitted with one side of the filter rack (4).

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