A washing machine with sewage buffering structure
By designing a wastewater buffer structure in the drum washing machine, the problems of unused wastewater and external drum vibration are solved, thereby improving wastewater utilization and washing machine stability, simplifying the drainage process, and enhancing ease of use and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XIAOYA INTELLIGENT ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-24
AI Technical Summary
In drum washing machines, wastewater is discharged directly during the washing cycle and is not utilized. Furthermore, the belt drive structure causes the outer drum to vibrate, affecting the stability of the washing machine.
Design a washing machine with a sewage buffer structure. The sewage tank temporarily stores sewage to lower the center of gravity, and the belt drive structure and shock absorption device are used to improve stability. The sewage tank is connected to the sewer through a drain pipe and a T-joint pipe. The sewage tank is emptied by a water pump. Limit switches and handles are set to facilitate installation and operation.
It enables the utilization of wastewater, improves the stability and safety of washing machines, simplifies the drainage process, and enhances ease of use and hygiene.
Smart Images
Figure CN224548778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drum washing machine technology, and specifically to a washing machine with a sewage buffer structure. Background Technology
[0002] A drum washing machine includes a casing, inside which is an outer drum connected to the casing via a shock-absorbing structure. Inside the outer drum is an inner drum, connected to the inner drum via a belt drive structure. The bottom of the outer drum is connected to a sewer via a drainage structure.
[0003] In the washing cycle of a front-loading washing machine, some wastewater is discharged to ensure the washing effect of the clothes in the drum. This wastewater is discharged directly without being utilized.
[0004] Furthermore, during the washing cycle, the belt drive structure drives the inner drum to rotate inside the outer drum, which causes the outer drum to vibrate. Although the outer drum is connected to the casing through a shock-absorbing structure, the washing machine is still affected, meaning that the stability of the washing machine still needs to be improved. Utility Model Content
[0005] To address the aforementioned shortcomings of existing technologies, this invention proposes a washing machine with a wastewater buffer structure. This invention can temporarily store wastewater in a wastewater tank, using the weight of the wastewater to lower the center of gravity of the washing machine. This not only achieves wastewater utilization but also improves the stability of the washing machine.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A washing machine with a sewage buffer structure includes a casing, an outer drum inside the casing connected to the casing via a shock-absorbing structure, an inner drum inside the outer drum connected to the inner drum via a belt drive structure, a sewage discharge structure at the bottom of the outer drum connected to a sewer, a sewage discharge valve at the bottom of the outer drum, a sewage tank at the top of the sewage tank connected to the sewage discharge valve via an inlet pipe, a vent pipe at the top of the sewage tank, a first drain pipe at the top of the side of the sewage tank, a second drain pipe at the bottom of the side of the sewage tank, the first drain pipe connected to the first inlet end of a three-way pipe, the second drain pipe connected to the second inlet end of the three-way pipe via a water pump, and the outlet end of the three-way pipe connected to a sewer.
[0007] Furthermore, a limiting seat is provided at the bottom center of the chassis, and a limiting post is provided on the front side of the limiting seat. A positioning plate is provided at the side center of the sewage tank, and a positioning hole is provided on the positioning plate. The limiting post is inserted into the positioning hole. The rear side of the positioning plate abuts against the front side of the limiting seat. A mounting seat is provided at the bottom front of the chassis. The mounting seat is lower than the height of the positioning plate. A baffle is provided on the mounting seat, and the baffle abuts against the front side of the sewage tank.
[0008] Furthermore, the mounting base is provided with a first slot, and the bottom of the baffle is provided with a second slot, with the first slot and the second slot being inserted and engaged in the vertical direction.
[0009] Furthermore, a handle is provided on the front side of the sewage tank.
[0010] Furthermore, the belt drive structure includes a motor, a first pulley, a second pulley, a drive shaft, and a belt. The motor is located at the bottom of the outer cylinder, and the output end of the motor is provided with a first pulley. The second pulley is located on the drive shaft, which is rotatably connected to the rear side of the outer cylinder and fixedly connected to the inner cylinder. The first pulley is connected to the second pulley via the belt.
[0011] Furthermore, the rear of the sewage tank is provided with a clearance area, and the motor is located within the clearance area.
[0012] Furthermore, the shock absorption structure includes shock absorption springs and shock absorbers. The top left and right sides of the outer cylinder are connected to the top of the chassis through shock absorption springs, and the bottom left and right sides of the outer cylinder are connected to the bottom of the chassis through shock absorbers. The sewage tank is located between the shock absorbers on the left and right sides of the bottom of the outer cylinder.
[0013] Furthermore, the outlet end of the three-way pipe is connected to the sewer via a check valve.
[0014] This utility model has the following beneficial effects: 1. When discharging wastewater from the outer drum, the drain valve opens, and the wastewater flows into the wastewater tank through the inlet pipe. As wastewater is continuously added to the tank, the water level rises. When the water level reaches the height where the first drain pipe connects to the wastewater tank, the wastewater is discharged into the sewer through the first drain pipe and the T-connector. Because wastewater is only discharged from the tank when the water level reaches the height where the first drain pipe connects to the wastewater tank, wastewater is continuously stored in the tank. By temporarily storing the wastewater in the tank, the weight of the wastewater lowers the washing machine's center of gravity, improving its stability. Therefore, this invention achieves both wastewater utilization and improved washing machine stability.
[0015] 2. When it is necessary to empty the sewage tank, start the water pump. The water pump will actively suck up the sewage in the sewage tank through the second drain pipe, so that the sewage is discharged into the sewer through the T-connector, thereby emptying the sewage tank and preventing bacteria from growing in the sewage tank due to long-term storage of sewage, thus improving the safety of using the washing machine.
[0016] 3. By connecting both the first and second drain pipes to the tee pipe, the outlet end of the tee pipe can be shared, allowing sewage to be discharged into the same sewer without increasing the number of sewers in the house, thus improving ease of use.
[0017] 4. By utilizing the limiting seat, limiting post, positioning plate, positioning hole, mounting base, first slot, baffle and second slot, the sewage tank can be limited in the front, back, left, right and up directions, improving the stability of the tank installed inside the machine box. The structure is simple and easy to install.
[0018] 5. By installing a handle on the front of the sewage tank, it is easier for users to lift the sewage tank, thus improving its ease of use.
[0019] 6. By setting a clearance area at the rear of the wastewater tank, the motor can be avoided, and the rear of the wastewater tank can be extended to the left and right sides of the motor. This increases the volume of the wastewater tank, the buffer capacity for wastewater, and the weight of the wastewater tank, further improving the stability of the washing machine.
[0020] 7. When sewage enters the T-junction pipe through the first drain pipe, the gravity of the sewage flow forces open the valve disc inside the check valve, allowing the sewage to flow smoothly into the sewer. Similarly, when sewage enters the T-junction pipe through the second drain pipe, the gravity of the sewage flow forces open the valve disc inside the check valve, allowing the sewage to flow smoothly into the sewer. When no sewage enters the T-junction pipe, the check valve disc remains closed, preventing foul air or insects from entering the T-junction pipe, thus ensuring hygiene and further improving the safety of the washing machine. Attached Figure Description
[0021] Figure 1 It is a three-dimensional washing machine with a wastewater buffer structure, removing the sewage discharge structure and baffle. Figure 1 ; Figure 2 It is a three-dimensional washing machine with a wastewater buffer structure, removing the sewage discharge structure and baffle. Figure 2 ; Figure 3 This is a front view of a washing machine with a wastewater buffer structure, excluding the sewage discharge structure and baffle. Figure 4 It is a 3D diagram of the sewage discharge structure; Figure 5 It is a 3D view of the baffle; Figure 6 It is a three-dimensional assembly diagram of the outer cylinder and belt drive structure; Figure 7 It's a 3D view of the computer case; Figure 8 A three-dimensional washing machine with a sewage buffer structure Figure 1 ; Figure 9 A three-dimensional washing machine with a sewage buffer structure Figure 2 ; Figure 10 This is a front view of a washing machine with a wastewater buffer structure.
[0022] Explanation of reference numerals in the attached figures: 1-Chassis, 11-Limit seat, 111-Limit post, 12-Mounting base, 121-First slot, 13-Baffle, 131-Second slot, 2-Outer cylinder, 21-Drain valve, 31-Damping spring, 32-Damper, 4-Inner cylinder, 51-Motor, 52-First pulley, 53-Second pulley, 54-Drive shaft, 55-Belt 61-Sewage tank, 611-Positioning plate, 6111-Positioning hole, 612-Handle, 613-Avoidance area. 62-Inlet pipe, 63-Ventilation tube, 64-First drain pipe, 65 - Second drain pipe 66-Water Pump 67-Tee pipe, 68 - Check valve. Detailed Implementation
[0023] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are used for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Example 1: See Figures 1 to 10 A washing machine with a sewage buffer structure includes a casing 1, an outer drum 2, a shock-absorbing structure, an inner drum 4, a belt drive structure, and a sewage discharge structure.
[0025] See Figure 1 and Figure 2 The outer cylinder 2 is located inside the casing 1.
[0026] See Figure 1 , Figure 2 and Figure 3 The shock absorption structure includes shock absorption springs 31 and shock absorbers 32. The top left and right sides of the outer cylinder 2 are connected to the top of the chassis 1 through shock absorption springs 31, and the bottom left and right sides of the outer cylinder 2 are connected to the bottom of the chassis 1 through shock absorbers 32.
[0027] See Figure 1 and Figure 2 The inner cylinder 4 is located inside the outer cylinder 2.
[0028] See Figure 6 The belt drive structure includes a motor 51, a first pulley 52, a second pulley 53, a drive shaft 54, and a belt 55. The motor 51 is fixedly installed on the bottom rear side of the outer cylinder 2. The first pulley 52 is fixedly installed on the output shaft of the motor 51. The second pulley 53 is fixedly installed on the drive shaft 54. The drive shaft 54 is rotatably connected to the rear side of the outer cylinder 2 through bearings. The drive shaft 54 is fixedly installed together with the inner cylinder 4. The first pulley 52 is driven by the second pulley 53 through the belt 55.
[0029] The working principle of the belt drive structure is as follows: after the motor 51 starts, the output shaft of the motor 51 drives the first pulley 52 to rotate. The first pulley 52 drives the second pulley 53 to rotate through the belt 55. The second pulley 53 drives the transmission shaft 54 to rotate. The transmission shaft 54 drives the inner cylinder 4 to rotate. The inner cylinder 4 can rotate relative to the outer cylinder 2.
[0030] See Figure 8 , Figure 9 and Figure 10 The sewage discharge structure includes a sewage tank 61, which is located between the shock absorbers 32 on the left and right sides of the bottom of the outer cylinder 2, and is located below the outer cylinder 2, so that the sewage tank 61 can make full use of the space below the outer cylinder 2.
[0031] See Figure 1 The bottom of the outer cylinder 2 is equipped with a drain valve 21. (See also...) Figure 8 , Figure 9 and Figure 10 The top of the wastewater tank 61 is connected to the drain valve 21 via an inlet pipe 62. When the drain valve 21 is opened, the washing wastewater inside the outer drum 2 flows into the wastewater tank 61 through the inlet pipe 62. The inlet pipe 62 is made of corrugated flexible hose. When the outer drum 2 vibrates, the distance between the outer drum 2 and the wastewater tank 61 changes. The corrugated flexible hose inlet pipe 62 is extendable to adapt to the change in the distance between the outer drum 2 and the wastewater tank 61.
[0032] See Figure 4The top of the sewage tank 61 is also equipped with a vent pipe 63, which is an integral part of the sewage tank 61. The top side of the sewage tank 61 is connected to the first inlet end of the tee pipe 67 via a first drain pipe 64, and the bottom side of the sewage tank 61 is connected to the inlet end of the water pump 66 via a second drain pipe 65. The outlet end of the water pump 66 is connected to the second inlet end of the tee pipe 67, and the outlet end of the tee pipe 67 is connected to the building's sewer system. Both the first drain pipe 64 and the second drain pipe 65 are made of plastic flexible hoses.
[0033] The working principle of this embodiment 1 is as follows: When discharging the washing wastewater inside the outer drum 2, the drain valve 21 opens, and the washing wastewater inside the outer drum 2 flows into the wastewater tank 61 through the inlet pipe 62. As wastewater is continuously poured into the wastewater tank 61, the wastewater level in the wastewater tank 61 rises. When the wastewater level rises to the height where the first drain pipe 64 connects to the wastewater tank 61, the wastewater is discharged into the sewer through the first drain pipe 64 and the three-way pipe 67 in sequence. Because the wastewater is only discharged from the wastewater tank 61 when the water level reaches the height where the first drain pipe 64 connects to the wastewater tank 61, wastewater can be continuously stored in the wastewater tank 61, and the wastewater level is lower than the height where the first drain pipe 64 connects to the wastewater tank 61. By temporarily storing the wastewater in the wastewater tank 61, the weight of the wastewater can be used to lower the center of gravity of the washing machine and improve the stability of the washing machine. Therefore, this utility model not only realizes the utilization of wastewater but also improves the stability of the washing machine.
[0034] When it is necessary to empty the sewage tank 61, the water pump 66 is started. The water pump 66 actively sucks the sewage in the sewage tank 61 through the second drain pipe 65, so that the sewage is discharged into the sewer through the three-way pipe 67, thereby emptying the sewage tank 61 and preventing bacteria from growing in the sewage tank 61 due to long-term storage of sewage, thus improving the safety of using the washing machine.
[0035] By connecting the first drain pipe 64 and the second drain pipe 65 to the tee pipe 67, the outlet end of the tee pipe 67 can be shared, allowing sewage to be discharged into the same sewer without increasing the number of sewers in the house, thus improving ease of use.
[0036] Example 2: This embodiment 2 is an improvement upon embodiment 1: See Figure 7 A limit seat 11 is bolted to the center of the bottom of the chassis 1, and a limit post 111 is welded to the front of the limit seat 11. (See also...) Figure 4 A positioning plate 611 is provided on the middle of the side of the sewage tank 61. The positioning plate 611 is an integral structure with the sewage tank 61, and a positioning hole 6111 is provided on the positioning plate 6111. See also Figure 8The limiting post 111 is inserted into the positioning hole 6111.
[0037] See Figure 7 A mounting base 12 is welded and fixed to the bottom front side of the chassis 1. The mounting base 12 is lower than the height of the positioning plate 611, and a first slot 121 is provided on the mounting base 12. See also Figure 5 The bottom of the baffle 13 is provided with a second slot 131, and the first slot 121 and the second slot 131 are inserted and engaged in the vertical direction.
[0038] The process of installing the wastewater tank 61 inside the chassis 1 is as follows: First, push the wastewater tank 61 from the front of the casing 1 into the bottom of the casing 1 until the rear side of the positioning plate 611 abuts against the front side of the limiting seat 11, and the positioning hole 6111 fits onto the limiting post 111. Because the height of the positioning plate 611 is higher than that of the mounting base 12, the positioning plate 611 will not be obstructed by the mounting base 12 during the process of pushing the wastewater tank 61, allowing the wastewater tank 61 to smoothly enter the bottom of the casing 1.
[0039] Then, insert the second slot 131 of the baffle 13 into the first slot 121 of the mounting base 12, so that the rear side of the baffle 13 abuts against the front side of the sewage tank 61.
[0040] After the above operations are completed, the limit seat 11 can prevent the sewage tank 61 from moving backward, the baffle 13 can prevent the sewage tank 61 from moving forward, and the limit post 111 can restrict the sewage tank 61 from moving up, down, left, and right, so that the sewage tank 61 can be fixedly installed inside the casing 1.
[0041] As can be seen from the above process of installing the sewage tank 61, by using the limiting seat 11, limiting post 111, positioning plate 611, positioning hole 6111, mounting seat 12, first slot 121, baffle 13 and second slot 131, the sewage tank 61 can be limited in the front, back, left, right and up directions, which improves the stability of the tank installed inside the casing 1, and the structure is simple and easy to install.
[0042] Further, see Figure 4 The sewage tank 61 has a handle 612 on its front side, and the handle 612 is an integral part of the sewage tank 61. By setting the handle 612, it is easy for users to lift the sewage tank 61, thus improving the ease of use.
[0043] Further, see Figure 4The wastewater tank 61 has a clearance area 613 at its rear, which is used to avoid the motor 51 in the belt drive structure. By using the clearance area 613 to avoid the motor 51, the rear of the wastewater tank 61 can be extended to the left and right sides of the motor 51, which can increase the volume of the wastewater tank 61, increase the buffer capacity of wastewater, increase the weight of the wastewater tank 61, and further improve the stability of the washing machine.
[0044] Further, see Figure 4 A check valve 68 is installed at the outlet end of the three-way pipe 67, and the check valve 68 is connected to the sewer. The check valve 68 can be a swing check valve, which is an existing product. The valve disc of the swing check valve is hinged inside the swing check valve and rotates. Under the impact of the water flow, the valve disc can be opened.
[0045] When sewage enters the three-way pipe 67 through the first drain pipe 64, the gravity of the sewage flow forces open the valve disc inside the check valve 68, allowing the sewage to drain smoothly into the sewer. Similarly, when sewage enters the three-way pipe 67 through the second drain pipe 65, the gravity of the sewage flow forces open the valve disc inside the check valve 68, allowing the sewage to drain smoothly into the sewer. When no sewage enters the three-way pipe 67, the valve disc of the check valve 68 is closed, preventing foul air or insects from entering the three-way pipe 67, thus ensuring hygiene and further improving the safety of the washing machine.
[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A washing machine with a wastewater buffer structure, comprising a casing, an outer drum inside the casing connected to the casing via a shock-absorbing structure, an inner drum inside the outer drum connected to the inner drum via a belt drive structure, and the bottom of the outer drum connected to a sewer via a drain structure, characterized in that, The bottom of the outer cylinder is equipped with a drain valve. The drain structure includes a sewage tank. The top of the sewage tank is connected to the drain valve through an inlet pipe. The top of the sewage tank is also equipped with a vent pipe. The top side of the sewage tank is equipped with a first drain pipe. The bottom side of the sewage tank is equipped with a second drain pipe. The first drain pipe is connected to the first inlet end of the tee pipe. The second drain pipe is connected to the second inlet end of the tee pipe through a water pump. The outlet end of the tee pipe is connected to the sewer.
2. A washing machine with a wastewater buffer structure according to claim 1, characterized in that, The bottom center of the chassis is provided with a limiting seat, and the front side of the limiting seat is provided with a limiting post. The side center of the sewage tank is provided with a positioning plate, and the positioning plate is provided with a positioning hole. The limiting post is inserted into the positioning hole. The rear side of the positioning plate abuts against the front side of the limiting seat. The bottom front side of the chassis is provided with a mounting seat, which is lower than the height of the positioning plate. The mounting seat is provided with a baffle, which abuts against the front side of the sewage tank.
3. A washing machine with a wastewater buffer structure according to claim 2, characterized in that, The mounting base is provided with a first slot, and the bottom of the baffle is provided with a second slot. The first slot and the second slot are inserted and engaged in the vertical direction.
4. A washing machine with a wastewater buffer structure according to claim 2, characterized in that, The sewage tank is equipped with a handle on the front side.
5. A washing machine with a wastewater buffer structure according to claim 1, characterized in that, The belt drive structure includes a motor, a first pulley, a second pulley, a drive shaft, and a belt. The motor is located at the bottom of the outer cylinder, and the output end of the motor is provided with the first pulley. The second pulley is located on the drive shaft, which is rotatably connected to the rear side of the outer cylinder and fixedly connected to the inner cylinder. The first pulley is connected to the second pulley via the belt.
6. A washing machine with a wastewater buffer structure according to claim 5, characterized in that, The sewage tank has a clearance area at the rear, and the motor is located in the clearance area.
7. A washing machine with a wastewater buffer structure according to claim 1, characterized in that, The shock absorption structure includes shock absorption springs and shock absorbers. The top left and right sides of the outer cylinder are connected to the top of the chassis through shock absorption springs, and the bottom left and right sides of the outer cylinder are connected to the bottom of the chassis through shock absorbers. The sewage tank is located between the shock absorbers on the left and right sides of the bottom of the outer cylinder.
8. A washing machine with a wastewater buffer structure according to claim 1, characterized in that, The outlet end of the tee pipe is connected to the sewer via a check valve.