Lower drainage device of roller washing machine

Abstract

The utility model relates to the technical field of roller washing machines, and discloses a lower drainage device of a roller washing machine, which comprises a drainage valve body and an electric tractor, a sealing drainage control assembly is arranged on the drainage valve body, and the sealing drainage control assembly is used for controlling automatic drainage and sealing. The sealing drainage control assembly comprises a valve rod, a rubber sealing bowl, a spring and a sealing ring, an electric capstan is arranged in the electric tractor, a traction rope is fixedly connected between the valve rod and the electric capstan of the electric tractor, and a drainage channel can be accurately opened and closed for drainage of the roller washing machine through operation of a series of structures; the drainage process is accurately controlled, the problem that in a traditional drainage mode, the traditional mode depends on a simple mechanical structure or manual operation, and accurate control over the drainage amount cannot be achieved is solved, the whole drainage process is automatically completed through the electric tractor, manual operation is not needed, and operation convenience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drum washing machines, in particular to a bottom drainage device for a drum washing machine. Background Art

[0002] During the washing process of a drum washing machine, the inside of the washing machine is filled with water to soak and wash the clothes. When the washing process is completed, the water needs to be discharged through the drainage device for the next round of rinsing, dehydration or other processes.

[0003] When draining, traditional drum washing machines usually require users to manually operate the drain valve or related components, such as rotating the drain motor cam, to achieve drainage. This operation is not only cumbersome, but also increases the difficulty of use for users. It is also impossible to automatically adjust the drainage speed and time according to the requirements of the washing program. This causes users to always pay attention to the drainage of the washing machine, which is very detrimental to the convenience and efficiency of operation. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a bottom drainage device for a drum washing machine, which solves the problem that the traditional drainage method requires the user to manually operate a drainage valve or related components, and the operation is cumbersome and inefficient.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bottom drainage device of a drum washing machine, comprising a drainage valve body and an electric traction device, a sealing drainage control component is arranged on the drainage valve body, the sealing drainage control component is used to control automatic drainage and sealing, and the sealing drainage control component comprises a valve stem, a rubber sealing bowl, a spring and a sealing ring;

[0008] An electric winch is provided in the electric traction device, and a traction rope is fixedly connected between the valve stem and the electric winch of the electric traction device, and the electric traction device can drive the traction rope to retract and rise and fall;

[0009] The sealed drainage control assembly also includes a water inlet elbow, which is fixedly connected to the lower surface of the drainage valve body, a valve stem is arranged on the drainage valve body, a sealing convex edge is formed between the water inlet elbow and the drainage valve body, and a rubber sealing bowl is fixedly connected to the lower end of the valve stem;

[0010] The cross section of the rubber sealing bowl is in the shape of a Chinese character "X", the central vertical part of the rubber sealing bowl is a conical surface, and the lower end surface of the rubber sealing bowl is used for sealing the sealing convex edge.

[0011] Preferably, a sealing valve cover is threadedly connected to the drain valve body, a sealing ring is fixedly connected in the sealing valve cover, an inner surface of the sealing ring is matched with an outer conical surface of the rubber sealing bowl, a spring sleeve is arranged on the central vertical part of the rubber sealing bowl, the spring is located between the lower edge part of the rubber sealing bowl and the horizontal plate of the sealing ring, and the spring is used to drive the lower end of the rubber sealing bowl to continuously seal with the sealing ridge.

[0012] Preferably, a water outlet hole is integrally formed on the outer surface of the drain valve body, and the water outlet hole is used for connecting to an external sewer pipe for drainage, and a plugging hole is integrally formed on the outer surface of the drain valve body.

[0013] Preferably, a sealing plugging cover is provided on the plugging hole, and the plugging hole is used to connect to other pipes to adapt to other functional elements. The outer surface of the drain valve body is integrally formed with an overflow port, and an overflow valve is fixedly installed on the overflow port. The overflow valve is used to control the overflow of excess water.

[0014] Preferably, one end opening of the water inlet bend is a water inlet, which is fixedly connected to the drainage pipe of the drum washing machine, and an air chamber is fixedly installed at the other end opening of the water inlet bend, the air chamber is used to exhaust gas to adjust the water level, and the air outlet end of the air chamber is inclined upward and a detector for detecting the exhaust airflow is arranged thereon.

[0015] Preferably, a mounting bracket is fixedly mounted on the drain valve body, and the mounting bracket is used to mount the drain valve body. The electric traction device is fixedly connected with a same mounting bracket.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a bottom drainage device for a drum washing machine, which has the following beneficial effects:

[0018] 1. The lower drainage device of the drum washing machine can accurately open and close the drainage channel of the drum washing machine through the operation of a series of structures, thereby realizing precise control of the drainage process, avoiding the problem that the traditional drainage method relies on a simple mechanical structure or manual operation and cannot realize precise control of the drainage volume. The entire drainage process is automatically completed by an electric traction device without manual operation, thereby improving the convenience and efficiency of operation.

[0019] 2. In the lower drainage device of the drum washing machine, after the rubber sealing bowl and the sealing convex edge are matched and sealed, there will be some residual water in the drain valve body, and this residual water will flow out from the overflow port, which can enable the excess waste water in the drain valve body to be effectively discharged, avoiding the problem of corrosion of components caused by residual waste water in the drain valve body and reducing the service life, thereby improving the stability of the drainage device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the overall installation position structure of the utility model;

[0023] Figure 4 For this utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0024] In the figure: 1. drain valve body; 2. electric traction device; 3. traction rope; 4. valve stem; 5. overflow port; 6. plugging hole; 7. water outlet hole; 8. air chamber; 9. rubber sealing bowl; 10. spring; 11. sealing valve cover; 12. sealing ring; 13. water inlet elbow; 14. mounting bracket; 15. sealing convex edge. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a new technical solution: a bottom drainage device of a drum washing machine, comprising a drainage valve body 1 and an electric traction device 2, a sealing drainage control component is arranged on the drainage valve body 1, the sealing drainage control component is used to control automatic drainage and sealing, and the sealing drainage control component comprises a valve stem 4, a rubber sealing bowl 9, a spring 10 and a sealing ring 12;

[0027] An electric winch is provided in the electric tractor 2, and a traction rope 3 is fixedly connected between the valve stem 4 and the electric winch of the electric tractor 2, and the electric tractor 2 can drive the traction rope 3 to retract and rise and fall;

[0028] The sealed drainage control assembly also includes a water inlet elbow 13, which is fixedly connected to the lower surface of the drainage valve body 1, a valve stem 4 is arranged on the drainage valve body 1, a sealing convex edge 15 is formed between the water inlet elbow 13 and the drainage valve body 1, and a rubber sealing bowl 9 is fixedly connected to the lower end of the valve stem 4;

[0029] The cross section of the rubber sealing bowl 9 is in the shape of a Chinese numeral 9 . The central vertical portion of the rubber sealing bowl 9 is a conical surface. The lower end surface of the rubber sealing bowl 9 is used to seal the sealing convex edge 15 .

[0030] Furthermore, a sealing valve cover 11 is threadedly connected to the drain valve body 1, and a sealing ring 12 is fixedly connected to the sealing valve cover 11. The inner surface of the sealing ring 12 is adapted to the outer conical surface of the rubber sealing bowl 9. The spring 10 is sleeved on the central vertical part of the rubber sealing bowl 9. The spring 10 is located between the lower edge part of the rubber sealing bowl 9 and the horizontal plate of the sealing ring 12. The spring 10 is used to drive the lower end of the rubber sealing bowl 9 to continuously seal with the sealing ridge 15.

[0031] Furthermore, a water outlet hole 7 is integrally formed on the outer surface of the drain valve body 1 , and the water outlet hole 7 is used for connecting to an external sewer pipe for drainage. A blocking hole 6 is integrally formed on the outer surface of the drain valve body 1 .

[0032] Furthermore, a sealing plugging cover is provided on the plugging hole 6, and the plugging hole 6 is used to be externally connected to other pipes to adapt to other functional elements. The outer surface of the drain valve body 1 is integrally formed with an overflow port 5, and an overflow valve is fixedly installed on the overflow port 5. The overflow valve is used to control the overflow of excess water.

[0033] Furthermore, one end opening of the water inlet bend pipe 13 is a water inlet, which is fixedly connected to the drainage pipe of the drum washing machine. An air chamber 8 is fixedly installed at the other end opening of the water inlet bend pipe 13. The air chamber 8 is used to exhaust gas to adjust the water level. The air outlet end of the air chamber 8 is inclined upward and a detector for detecting the exhaust airflow is arranged thereon.

[0034] Furthermore, a mounting bracket 14 is fixedly mounted on the drain valve body 1 , and the mounting bracket 14 is used to mount and fix the drain valve body 1 . The electric traction device 2 is fixedly connected with a same mounting bracket 14 .

[0035] Furthermore, when in use, the electric traction device 2 is started, and the electric winch in the electric traction device 2 will reel in the traction rope 3. The reeled traction rope 3 will drive the rubber sealing bowl 9 to move upward through the valve stem 4, so that the spring 10 on the rubber sealing bowl 9 can be compressed and deformed. The compressed and deformed spring 10 can drive the lower end of the rubber sealing bowl 9 to separate from the sealing convex edge 15, and at this time, the central part of the rubber sealing bowl 9 will fit with the inner wall of the sealing ring 12. At this time, the space between the drain valve body 1 and the water inlet elbow 13 is connected, and the drainage pipe at the water inlet of the water inlet elbow 13 will flow water through the water inlet elbow 13 and the inside of the drain valve body 1, and finally be discharged from the water outlet 7. The water level of the drainage can be adjusted and detected to a certain extent through the air chamber 8. After the water level reaches a certain level, the detector will send a signal to the electric traction device. The puller 2 sends a signal to start the electric traction device 2 in the reverse direction to unwind the traction rope 3. At this time, the valve stem 4 is free from the limiting force of the traction rope 3, and the rubber sealing bowl 9 will move downward under the elastic force of the spring 10, thereby disengaging from the sealing ring 12. The rubber sealing bowl 9 moving downward can fit closely with the sealing convex edge 15 to seal the space between the water inlet elbow 13 and the drain valve body 1. At this time, the water inlet elbow 13 is no longer draining water. Through the operation of the above structure, the drainage of the drum washing machine can accurately open and close the drainage channel, thereby achieving precise control of the drainage process, avoiding the problem that the traditional drainage method relies on a simple mechanical structure or manual operation and cannot achieve precise control of the drainage volume, and the entire drainage process is automatically completed by the electric traction device 2 without manual operation, thereby improving the convenience and efficiency of operation.

[0036] Furthermore, after the rubber sealing bowl 9 and the sealing ridge 15 are adapted to seal, there will be some residual water in the drain valve body 1, and this residual water will flow out from the overflow port 5, which can effectively discharge the excess waste water in the drain valve body 1, avoiding the problem of corrosion of components caused by the residual waste water in the drain valve body 1 and reducing the service life, thereby improving the stability of the drainage device to a certain extent.

[0037] Working principle: When in use, the electric traction device 2 is started, and the electric winch in the electric traction device 2 will reel in the traction rope 3. The reeled traction rope 3 will drive the rubber sealing bowl 9 to move upward through the valve stem 4, so that the spring 10 on the rubber sealing bowl 9 can be compressed and deformed. The compressed and deformed spring 10 can drive the lower end of the rubber sealing bowl 9 to separate from the sealing convex edge 15, and at this time, the central part of the rubber sealing bowl 9 will fit with the inner wall of the sealing ring 12. At this time, the space between the drain valve body 1 and the water inlet elbow 13 is connected, and the drainage pipe at the water inlet of the water inlet elbow 13 will flow water through the water inlet elbow 13 and the drain valve The inside of the body 1 is finally discharged from the water outlet 7, and the air chamber 8 is provided so that the water level of the drainage can be adjusted and detected to a certain extent. After detecting that the water level has reached a certain level, the detector will send a signal to the electric traction device 2, so that the electric traction device 2 starts in reverse and unwinds the traction rope 3. At this time, the valve stem 4 is free from the limiting force of the traction rope 3, and the rubber sealing bowl 9 will move downward under the elastic force of the spring 10, thereby disengaging from the sealing ring 12. The rubber sealing bowl 9 moving downward can fit closely with the sealing convex edge 15 to seal the space between the water inlet elbow 13 and the drainage valve body 1. At this time, the water inlet elbow 13 is no longer draining.

[0038] Furthermore, since the rubber sealing bowl 9 and the sealing ridge 15 are adapted and sealed, there will be some residual water in the drain valve body 1, and this residual water will flow out from the overflow port 5, which can effectively discharge the excess waste water in the drain valve body 1.

[0039] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom drainage device for a drum washing machine, characterized in that: The invention comprises a drainage valve body (1) and an electric traction device (2). The drainage valve body (1) is provided with a sealing drainage control component, which is used to control automatic drainage and sealing. The sealing drainage control component comprises a valve stem (4), a rubber sealing bowl (9), a spring (10) and a sealing ring (12); An electric winch is arranged inside the electric traction device (2), a traction rope (3) is fixedly connected between the valve stem (4) and the electric winch of the electric traction device (2), and the electric traction device (2) can drive the traction rope (3) to retract and rise and fall; The sealed drainage control assembly also includes a water inlet elbow (13), the water inlet elbow (13) is fixedly connected to the lower surface of the drainage valve body (1), the valve stem (4) is arranged on the drainage valve body (1), a sealing convex edge (15) is formed between the water inlet elbow (13) and the drainage valve body (1), and a rubber sealing bowl (9) is fixedly connected to the lower end of the valve stem (4); The cross section of the rubber sealing bowl (9) is in the shape of a Chinese character "X", the central vertical part of the rubber sealing bowl (9) is a conical surface, and the lower end surface of the rubber sealing bowl (9) is used for sealing the sealing convex edge (15).

2. The bottom drainage device of a drum washing machine according to claim 1, characterized in that: The drain valve body (1) is threadedly connected with a sealing valve cover (11), a sealing ring (12) is fixedly connected inside the sealing valve cover (11), the inner surface of the sealing ring (12) is matched with the outer conical surface of the rubber sealing bowl (9), a spring (10) is sleeved on the central vertical part of the rubber sealing bowl (9), the spring (10) is located between the lower edge part of the rubber sealing bowl (9) and the horizontal plate of the sealing ring (12), and the spring (10) is used to drive the lower end of the rubber sealing bowl (9) to continuously seal with the sealing convex edge (15).

3. The bottom drainage device of a drum washing machine according to claim 1, characterized in that: The outer surface of the drain valve body (1) is integrally formed with a water outlet hole (7), which is used for connecting to an external sewer pipe for drainage, and the outer surface of the drain valve body (1) is integrally formed with a blocking hole (6).

4. The bottom drainage device of a drum washing machine according to claim 3, characterized in that: The plugging hole (6) is provided with a sealing plugging cover, and the plugging hole (6) is used to connect other pipes to adapt to other functional elements. The outer surface of the drain valve body (1) is integrally formed with an overflow port (5), and an overflow valve is fixedly installed on the overflow port (5), and the overflow valve is used to control the overflow of excess water.

5. The bottom drainage device of a drum washing machine according to claim 1, characterized in that: One end opening of the water inlet elbow (13) is a water inlet, which is fixedly connected to the drainage pipe of the drum washing machine. An air chamber (8) is fixedly installed at the other end opening of the water inlet elbow (13). The air chamber (8) is used to discharge gas to adjust the water level. The air outlet end of the air chamber (8) is arranged to be inclined upward and a detector for detecting the discharged air flow is arranged thereon.

6. The bottom drainage device of a drum washing machine according to claim 1, characterized in that: A mounting bracket (14) is fixedly mounted on the drainage valve body (1), and the mounting bracket (14) is used to mount the drainage valve body (1). The electric traction device (2) is fixedly connected to a similar mounting bracket (14).

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