Sewage collecting device of carpet cleaning machine
By incorporating a flexible partition structure and a snap-fit fixing structure within the water tank of the carpet cleaning machine, a flexible separation between the clean water chamber and the wastewater chamber is achieved. This solves the problem of insufficient water volume in the carpet cleaning machine, increases the water tank's capacity and cleaning time, and simplifies the replacement process of the waterproof membrane.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI GENGJI ENVIRONMENTAL PROTECTION TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
Existing carpet cleaning machines have a small water capacity per cycle, which limits their operating time.
The water tank is divided into a clean water chamber and a wastewater chamber by adopting a flexible partition structure and a snap-fit fixing structure. With the increase of clean water volume, the waterproof membrane expands to increase the space of the clean water chamber and the wastewater chamber space, so that the water tank can hold more water.
This increases the amount of water a carpet cleaning machine can carry at one time, extends the cleaning time, and facilitates the replacement of the waterproof membrane.
Smart Images

Figure CN224155607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carpet cleaning machine technology, and in particular to a wastewater collection device for a carpet cleaning machine. Background Technology
[0002] A carpet cleaning machine is a mechanical device specifically designed for cleaning carpets. Its main function is to thoroughly remove stains and dust from carpets through steps such as spraying, brushing, and vacuuming.
[0003] In a current Chinese utility model patent application, CN216569829U discloses a water tank and carpet cleaning machine, comprising a tank body and a lid. The tank body has a wastewater compartment, and the lid is sealed to the opening of the tank body. The lid contains a first chamber and a second chamber. An air inlet pipe passes through the tank body and communicates with the first chamber, and an air outlet pipe passes through the tank body and communicates with the second chamber. Both the first and second chambers are also connected to the wastewater compartment. The carpet cleaning machine includes a machine body and the water tank described above, which is detachably connected to the machine body. The wastewater compartment can be opened through the lid for easy cleaning and to prevent dirt residue.
[0004] Referring to the aforementioned water tank and carpet cleaning machine, the carpet cleaning machine has both a clean water tank and a wastewater tank inside, separated by a partition. While this method of simultaneously setting up clean water and wastewater tanks inside the tank reduces the overall volume of the tank, it also limits the amount of clean water that can be carried, resulting in a smaller water volume that the carpet cleaning machine can carry at one time. Consequently, the usage time of the carpet cleaning machine is shortened. Therefore, how to better enable the carpet cleaning machine to carry a larger amount of water at one time is an important problem that needs to be solved in the design of the wastewater collection device of the carpet cleaning machine. Utility Model Content
[0005] This invention provides a wastewater collection device for carpet cleaning machines to address the problem of small water volume carried by the entire carpet cleaning machine at one time.
[0006] This utility model solves the above-mentioned technical problems through the following technical solutions:
[0007] This utility model provides a wastewater collection device for a carpet cleaning machine, including...
[0008] Water tank shell;
[0009] A partition frame is fixedly installed on the inner wall of the water tank shell;
[0010] A flexible partition structure is installed inside the water tank shell. The flexible partition structure and the partition frame divide the inside of the water tank shell into a clean water chamber and a wastewater chamber.
[0011] The snap-fit fixing structure is installed on the partition frame.
[0012] Preferably, the partition frame has a U-shaped structure, and sliding locking rods are fixedly connected to the inner sidewalls on both sides of the partition frame. The cross-section of the sliding locking rods has a convex shape.
[0013] Preferably, a first sliding groove is provided inside the sliding latch rod, and a second sliding groove is provided inside the separator. The first sliding groove and the second sliding groove are connected, and the top of the second sliding groove penetrates through the side wall of the separator.
[0014] Preferably, the flexible partition structure includes a fixed frame, a connecting frame, a waterproof membrane, a sliding snap-fit groove, and a snap-fit fixing groove. The fixed frame and the connecting frame are in the shape of a "U". The connecting frame is fixedly connected to the inner side wall of the fixed frame. The waterproof membrane is fixedly connected to the inner side wall of the connecting frame. Sliding snap-fit grooves are provided on the side walls of both sides of the fixed frame. The fixed frame snaps onto the partition frame. Snap-fit fixing grooves are provided on the side walls of the sliding snap-fit grooves.
[0015] In this technical solution, a waterproof membrane flexibly separates the clean water chamber and the wastewater chamber. As more and more clean water is injected into the clean water chamber, the waterproof membrane expands towards the wastewater chamber, increasing the space inside the clean water chamber and allowing the tank shell to hold more clean water. As the carpet cleaning machine cleans the carpet, the amount of clean water in the clean water chamber gradually decreases, while the amount of wastewater in the wastewater chamber gradually increases. The waterproof membrane in the middle gradually expands towards the clean water chamber under the push of the wastewater, increasing the space inside the wastewater chamber and thus better accommodating more wastewater.
[0016] Preferably, the sliding locking groove and the sliding locking rod cooperate with each other.
[0017] In this technical solution, the fixing bracket can be slidably engaged with the sliding engagement rod.
[0018] Preferably, the flexible partition structure includes a sealing gasket, a rubber water bag, a fixing pad, a telescopic rod, a first spring, and a water inlet groove. The rubber water bag is fixedly connected to the inner side wall of the fixing frame. A water inlet groove is provided on the side wall where the rubber water bag and the fixing frame are connected. A sealing gasket is fixedly connected to the side wall of the rubber water bag near the partition frame. A fixing pad is fixedly connected to the inner side wall of the rubber water bag. A telescopic rod and a first spring are fixedly connected between each pair of fixing pads. The first spring is sleeved on the outside of the telescopic rod.
[0019] In this technical solution, some clean water enters the rubber water bag through the water inlet groove. The water pressure presses against the sealing gasket, and the elastic force of the first spring pushes the sealing gasket so that it is tightly pressed against the side wall of the partition frame, thus sealing the connection between the fixed frame and the partition frame.
[0020] Preferably, the snap-fit fixing structure includes a push plate, a connecting rod, a second spring, and a snap-fit fixing block. The snap-fit fixing block is slidably connected in the first sliding groove. The connecting rod and the second spring are fixedly connected to the side wall of the snap-fit fixing block. The other end of the second spring is fixedly connected to the inner side wall of the first sliding groove. The other end of the connecting rod extends into the second sliding groove and is fixedly connected to the push plate. The push plate is slidably connected in the second sliding groove.
[0021] In this technical solution, the push plate is pushed and slides in the second sliding groove, which drives the connecting rod to move. The connecting rod drives the locking block to move, and the second spring is compressed, so that the locking block disengages from the locking groove and no longer restricts the movement of the fixing frame.
[0022] Preferably, the top of the push plate extends out of the second sliding groove.
[0023] In this technical solution, it is convenient to manually push the push plate to move.
[0024] Preferably, a waterproof shielding cloth is fixedly connected between the sidewalls of the push plate and the second sliding groove.
[0025] In this technical solution, the waterproof covering cloth can cover the top of the second sliding groove.
[0026] Preferably, the snap-fit fixing block and the snap-fit fixing groove cooperate with each other.
[0027] In this technical solution, the snap-fit fixing block snaps into the snap-fit fixing groove to restrict the movement of the fixing frame.
[0028] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.
[0029] The positive and progressive effects of this utility model are as follows:
[0030] 1. In this application, some clean water enters the rubber water bag through the water inlet channel. The water pressure presses the sealing gasket, and the elastic force of the first spring pushes the sealing gasket so that the sealing gasket is tightly pressed against the side wall of the partition frame, which facilitates a better sealing connection between the fixed frame and the partition frame.
[0031] 2. A waterproof membrane flexibly separates the clean water chamber and the wastewater chamber. As more and more clean water is injected into the clean water chamber, the waterproof membrane expands towards the wastewater chamber, increasing the space within the clean water chamber and allowing the tank shell to hold more clean water. As the carpet cleaner cleans the carpet, the amount of clean water in the clean water chamber gradually decreases, while the amount of wastewater in the wastewater chamber gradually increases. The waterproof membrane in the middle gradually expands towards the clean water chamber under the push of the wastewater, increasing the space within the wastewater chamber and better accommodating more wastewater. This allows the carpet cleaner to carry a larger amount of water at a time, effectively extending the cleaning time.
[0032] 3. By pushing the push plate, the push plate moves the snap-fit fixing block, the second spring is compressed, so that the snap-fit fixing block is disengaged from the snap-fit fixing groove and no longer restricts the movement of the fixing frame. Pulling the fixing frame upward, the fixing frame drives the waterproof membrane to disengage from the partition frame, so that the waterproof membrane can be removed for replacement, making the replacement of the waterproof membrane more convenient. Attached Figure Description
[0033] Figure 1 This is a three-dimensional structural diagram of the sewage collection device of this utility model.
[0034] Figure 2 This is a top view of the internal structure of the present invention.
[0035] Figure 3 This is a side view of the internal structure of the partition frame and flexible partition structure of this utility model.
[0036] Figure 4 The whole of this utility model Figure 2 A magnified schematic diagram of the structure at point A.
[0037] Figure 5 The whole of this utility model Figure 3 Schematic diagram of the enlarged structure at point B
[0038] Explanation of reference numerals in the attached figures
[0039] 1. Water tank shell; 2. Flexible partition structure; 201. Fixing frame; 202. Connecting frame; 203. Waterproof membrane; 204. Sliding snap-fit groove; 205. Snap-fit fixing groove; 211. Sealing gasket; 212. Rubber water bag; 213. Fixing pad; 214. Telescopic rod; 215. First spring; 216. Water inlet channel; 3. Partition frame; 4. Sliding snap-fit rod; 5. First sliding groove; 6. Snap-fit fixing structure; 601. Push plate; 602. Connecting rod; 603. Second spring; 604. Snap-fit fixing block; 7. Second sliding groove; 8. Clean water chamber; 9. Sewage chamber; 10. Waterproof shielding cloth. Detailed Implementation
[0040] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.
[0041] like Figure 1-5 As shown, a wastewater collection device for a carpet cleaning machine includes a water tank shell 1, a flexible partition structure 2, a partition frame 3, and a snap-fit fixing structure 6. The partition frame 3 is fixedly mounted on the inner wall of the water tank shell 1; the flexible partition structure 2 is disposed inside the water tank shell 1, and the flexible partition structure 2 and the partition frame 3 divide the interior of the water tank shell 1 into a clean water chamber 8 and a wastewater chamber 9; the snap-fit fixing structure 6 is disposed on the partition frame 3.
[0042] The partition frame 3 has a U-shaped structure. Sliding locking rods 4 are fixedly connected to the inner walls on the left and right sides of the partition frame 3. The cross-section of the sliding locking rods 4 has a convex shape.
[0043] The sliding latch rod 4 has a first sliding groove 5, and the partition frame 3 has a second sliding groove 7. The first sliding groove 5 and the second sliding groove 7 are connected, and the top of the second sliding groove 7 penetrates the side wall of the partition frame 3.
[0044] The flexible partition structure 2 includes a fixing frame 201, a connecting frame 202, a waterproof membrane 203, a sliding snap-fit groove 204, and a snap-fit fixing groove 205. The fixing frame 201 and the connecting frame 202 are in the shape of a "U". The connecting frame 202 is fixedly connected to the inner side wall of the fixing frame 201. The waterproof membrane 203 is fixedly connected to the inner side wall of the connecting frame 202. The sliding snap-fit grooves 204 are provided on the side walls on both sides of the fixing frame 201. The fixing frame 201 is snapped onto the partition frame 3. The snap-fit fixing grooves 205 are provided on the side walls of the sliding snap-fit grooves 204.
[0045] The waterproof membrane 203 flexibly separates the clean water chamber 8 and the sewage chamber 9. As more and more clean water is injected into the clean water chamber 8, the waterproof membrane 203 unfolds towards the sewage chamber 9, increasing the space inside the clean water chamber 8. This allows the water tank shell 1 to hold more clean water. As the carpet cleaning machine cleans the carpet, the amount of clean water in the clean water chamber 8 gradually decreases, while the amount of sewage in the sewage chamber 9 gradually increases. The waterproof membrane 203 in the middle gradually unfolds towards the clean water chamber 8 under the push of the sewage, increasing the space inside the sewage chamber 9 and thus better accommodating more sewage.
[0046] The sliding slot 204 and the sliding rod 4 cooperate with each other.
[0047] This allows the fixing bracket 201 to slide and engage well with the sliding engagement rod 4.
[0048] The flexible partition structure 2 includes a sealing gasket 211, a rubber water bag 212, a fixing gasket 213, a telescopic rod 214, a first spring 215, and a water inlet groove. The rubber water bag 212 is fixedly connected to the inner side wall of the fixing frame 201. A water inlet groove is provided on the side wall where the rubber water bag 212 and the fixing frame 201 are connected. The sealing gasket 211 is fixedly connected to the side wall of the rubber water bag 212 near the partition frame 3. The fixing gasket 213 is fixedly connected to the inner side wall of the rubber water bag 212. The telescopic rod 214 and the first spring 215 are fixedly connected between each pair of fixing gaskets 213. The first spring 215 is sleeved on the outside of the telescopic rod 214.
[0049] Some clean water will enter the rubber water bag 212 through the water inlet channel. The water pressure will press the sealing gasket 211, and the elastic force of the first spring 215 will push the sealing gasket 211, so that the sealing gasket 211 is tightly pressed against the side wall of the partition frame 3, thus sealing the connection between the fixing frame 201 and the partition frame 3.
[0050] The snap-fit fixing structure 6 includes a push plate 601, a connecting rod 602, a second spring 603, and a snap-fit fixing block 604. The snap-fit fixing block 604 is slidably connected in the first sliding groove 5. The connecting rod 602 and the second spring 603 are fixedly connected to the side wall of the snap-fit fixing block 604. The other end of the second spring 603 is fixedly connected to the inner side wall of the first sliding groove 5. The other end of the connecting rod 602 extends into the second sliding groove 7 and is fixedly connected to the push plate 601. The push plate 601 is slidably connected in the second sliding groove 7.
[0051] Pushing the push plate 601 causes it to slide within the second sliding groove 7, which in turn moves the connecting rod 602. The connecting rod 602 then moves the locking block 604, compressing the second spring 603. This causes the locking block 604 to disengage from the locking groove 205 and no longer restrict the movement of the fixing frame 201.
[0052] The top of the push plate 601 extends out of the second sliding groove 7.
[0053] It allows for easy manual movement of the push plate 601.
[0054] A waterproof shielding cloth 10 is fixedly connected between the push plate 601 and the side wall of the second sliding groove 7.
[0055] The waterproof cover 10 can cover the top of the second sliding groove 7.
[0056] The snap-fit fixing block 604 and the snap-fit fixing groove 205 cooperate with each other.
[0057] The snap-fit fixing block 604 snaps into the snap-fit fixing groove 205 to restrict the movement of the fixing frame 201.
[0058] When this utility model is in use, clean water is injected into the clean water chamber 8 inside the water tank shell 1. As the clean water is injected, some of the clean water will enter the rubber water bag 212 through the water inlet groove. The water pressure will press the sealing gasket 211, and the elastic force of the first spring 215 will push the sealing gasket 211, so that the sealing gasket 211 is tightly pressed against the side wall of the partition frame 3, thus sealing the connection between the fixing frame 201 and the partition frame 3.
[0059] This allows the waterproof membrane 203 to flexibly separate the clean water chamber 8 and the wastewater chamber 9. As more and more clean water is injected into the clean water chamber 8, the waterproof membrane 203 unfolds towards the wastewater chamber 9, increasing the space inside the clean water chamber 8. This allows the water tank shell 1 to hold more clean water. As the carpet cleaning machine cleans the carpet, the amount of clean water in the clean water chamber 8 gradually decreases, while the amount of wastewater in the wastewater chamber 9 gradually increases. The waterproof membrane 203, pushed by the wastewater, gradually unfolds towards the clean water chamber 8, increasing the space inside the wastewater chamber 9. This allows it to better hold more wastewater, enabling the carpet cleaning machine to carry a larger amount of water at once and extending the cleaning time.
[0060] The waterproof membrane 203 may be damaged during repeated use. When it is necessary to replace the damaged waterproof membrane 203, push the push plate 601. The push plate 601 slides in the second sliding groove 7, which drives the connecting rod 602 to move. The connecting rod 602 drives the locking block 604 to move. The second spring 603 is compressed, so that the locking block 604 disengages from the locking groove 205 and no longer restricts the movement of the fixing frame 201. Pull the fixing frame 201 upward, so that the fixing frame 201 drives the waterproof membrane 203 to disengage from the partition frame 3, so that the waterproof membrane 203 can be removed for replacement. This makes the replacement of the waterproof membrane 203 more convenient.
[0061] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A sump assembly for a carpet extractor, comprising: include Water tank shell; A partition frame, which is fixedly installed on the inner side wall of the water tank shell; A flexible partition structure is provided inside the water tank shell, and the flexible partition structure and the partition frame divide the inside of the water tank shell into a clean water chamber and a wastewater chamber. A snap-fit fixing structure is provided on the partition frame.
2. The sump assembly of claim 1 wherein: The partition frame has a U-shaped structure, and sliding locking rods are fixedly connected to the inner sidewalls on the left and right sides of the partition frame. The cross-section of the sliding locking rods has a convex shape.
3. The sump assembly of claim 2 wherein: The sliding latch rod has a first sliding groove, and the divider has a second sliding groove. The first sliding groove and the second sliding groove are connected, and the top of the second sliding groove penetrates the side wall of the divider.
4. The sump assembly of claim 1 wherein: The flexible partition structure includes a fixed frame, a connecting frame, a waterproof membrane, a sliding snap-fit groove, and a snap-fit fixing groove. The fixed frame and the connecting frame are in the shape of a "U". The connecting frame is fixedly connected to the inner side wall of the fixed frame. The waterproof membrane is fixedly connected to the inner side wall of the connecting frame. Sliding snap-fit grooves are provided on the side walls of both sides of the fixed frame. The fixed frame snaps onto the partition frame. The side walls of the sliding snap-fit grooves are provided with snap-fit fixing grooves.
5. The sump assembly of claim 4 wherein: The sliding slot and the sliding rod cooperate with each other.
6. The sump assembly of claim 4 wherein: The flexible partition structure includes a sealing gasket, a rubber water bag, a fixing pad, a telescopic rod, a first spring, and a water inlet groove. The rubber water bag is fixedly connected to the inner side wall of the fixing frame. A water inlet groove is provided on the side wall where the rubber water bag and the fixing frame are connected. A sealing gasket is fixedly connected to the side wall of the rubber water bag near the partition frame. A fixing pad is fixedly connected to the inner side wall of the rubber water bag. A telescopic rod and a first spring are fixedly connected between each pair of fixing pads. The first spring is sleeved on the outside of the telescopic rod.
7. The sump assembly of claim 1 wherein: The snap-fit fixing structure includes a push plate, a connecting rod, a second spring, and a snap-fit fixing block. The snap-fit fixing block is slidably connected in a first sliding groove. A connecting rod and a second spring are fixedly connected to the side wall of the snap-fit fixing block. The other end of the second spring is fixedly connected to the inner side wall of the first sliding groove. The other end of the connecting rod extends into the second sliding groove and is fixedly connected to the push plate. The push plate is slidably connected in the second sliding groove.
8. The sump assembly of claim 7 wherein: The top of the push plate extends out of the second sliding groove.
9. The sump assembly of claim 7 wherein: A waterproof shielding cloth is fixedly connected between the side walls of the push plate and the second sliding groove.
10. The sump assembly of claim 7 wherein: The snap-fit fixing block and the snap-fit fixing groove cooperate with each other.
Citation Information
Patent Citations
Water tank and carpet cleaning machine
CN216569829U