A laundry drain tractor for use in a compact washing machine

Abstract

The utility model relates to a washing machine technical field especially relates to a washing machine drainage tractor for small -size washing machine, including first drive gear and installation shell, the bottom of first drive gear is provided with directional ratchet, the top of installation shell is installed with control clasp, the top of control clasp is provided with the clasp control lever, the side of control clasp away from clasp control lever rotatoryly provided with second drive gear, the top of second drive gear is provided with clutch compression spring, the outside of clutch compression spring is sleeved with sun gear, the upper end surface of sun gear is provided with stop gear ring. The utility model discloses a pair of spur gears plus planetary gear train drive mode makes in the original motor power unchangeable condition can output greater force drive greater quality, thereby in the quality unchangeable condition, can power smaller motor drive more stable, and can effectively improve the transmission efficiency of motor.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a washing machine drain auger for use in small washing machines. Background Technology

[0002] The washing machine drain actuator is the core component controlling the start and stop of the drainage system. It uses mechanical traction to quickly discharge wastewater after washing, providing a fundamental guarantee for the rinsing and spin-drying processes. Its stable traction force ensures the drainage channel is airtight, preventing leakage during washing and ensuring safe operation. Adapting to drainage needs under different water levels and load conditions, it improves the washing machine's operational stability and lifespan. It is a key component for achieving automated and efficient washing, playing a vital role in optimizing user experience and reducing maintenance costs.

[0003] Existing drain actuators for washing machines mostly employ four-stage gear transmission mechanisms. Drain actuators used in small washing machines are simply modifications of the gear ratios used in large washing machines to adapt to smaller models. However, the gear transmission structure and even the motor remain unchanged, resulting in low transmission precision and a complex overall transmission structure. This leads to a non-compact structure, energy waste, and low mechanical efficiency. Furthermore, the increased number of shafts required in the traction system further reduces transmission efficiency. Therefore, this paper proposes a drain actuator for small washing machines. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: A drain actuator for a small washing machine includes a first transmission gear and a mounting housing. A directional ratchet is located at the bottom of the first transmission gear. A control hook is mounted on the top of the mounting housing. A hook control lever is located at the top of the control hook. A second transmission gear is rotatably mounted on the side of the control hook away from the hook control lever. A clutch spring is located on the top of the second transmission gear. A sun gear is sleeved on the outside of the clutch spring. A stop gear ring is located on the upper surface of the sun gear. Several planet gears are located inside the stop gear ring. A planet carrier is located on the top of the stop gear ring. A transmission assembly is located inside the mounting housing on the side away from the stop gear ring.

[0005] As an improvement to the above technical solution, the transmission assembly includes a magnetic ring gear, the bottom of which is disposed inside the mounting housing, a torsion spring is mounted on the top of which, a magnetic ring is sleeved on the outside of which, an aluminum ring gear is mounted on the outside of the protruding vertical rod on the top of the magnetic ring, and an directional transmission gear is disposed on the other side of the mounting housing away from the planetary carrier, with a sector gear mounted on the top of which.

[0006] As an improvement to the above technical solution, a tension spring is provided on the top of the mounting shell, and the other end of the tension spring is detachably fixed to a stop rod at the end of the sector gear, and the aluminum ring gear meshes with one side of the sector gear.

[0007] As an improvement to the above technical solution, a stop pinion is provided inside the mounting housing between the sector gear and the stop gear ring, and a buffer rubber ring is installed on the outside of the stop pinion.

[0008] As an improvement to the above technical solution, the outer side of the first transmission gear meshes with the outer side of the directional transmission gear, and the outer side of the second transmission gear meshes with the outer side of the first transmission gear.

[0009] As an improvement to the above technical solution, the mounting housing is provided with a directional locking component inside, the top end of the directional locking component engaging with the outside of the directional ratchet, and the outside of the first transmission gear meshing with the outside of the directional transmission gear.

[0010] As an improvement to the above technical solution, the top of the second transmission gear is provided with a protrusion, and the interior of the sun gear is provided with a groove that engages with the protrusion on the top of the second transmission gear.

[0011] As an improvement to the above technical solution, the bottom of the planetary carrier is provided with several frustum-shaped protrusions. The frustum-shaped protrusions at the bottom of the planetary carrier are installed on the top of the planetary gears, and the outer protrusion of the hook control lever cooperates with the top protrusion of the planetary carrier.

[0012] The beneficial effects of this utility model are: This invention replaces the existing four-stage transmission gear mechanism with a pair of spur gears and a planetary gear system. Compared with the former, it can output a greater force to drive a larger mass without changing the original motor power. Therefore, if the pulling mass remains the same, a motor with less power can be used for smoother transmission, higher transmission efficiency, simplified transmission structure, and reduced cost. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention; Figure 2 This is an exploded view of the present invention.

[0014] Reference numerals in the attached diagram: 1. First transmission gear; 2. Second transmission gear; 3. Sun gear; 4. Stop ring gear; 5. Planetary gear; 6. Planetary carrier; 7. Control hook; 8. Hook control lever; 9. Directional transmission gear; 10. Directional locking element; 11. Magnetic ring gear; 12. Magnetic ring one; 13. Aluminum ring gear; 14. Sector gear; 15. Stop pinion; 16. Buffer rubber ring; 17. Clutch compression spring; 18. Torsion spring; 19. Tension spring; 20. Directional ratchet; 21. Mounting housing. Detailed Implementation

[0015] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0016] Please see Figure 1-2 This utility model provides a technical solution: A drain actuator for a small washing machine includes a first transmission gear 1 and a mounting housing 21. A directional ratchet 20 is provided at the bottom of the first transmission gear 1. A control hook 7 is installed at the top of the mounting housing 21. A hook control lever 8 is provided at the top of the control hook 7. A second transmission gear 2 is rotatably arranged on the side of the control hook 7 away from the hook control lever 8. A clutch spring 17 is provided at the top of the second transmission gear 2. A sun gear 3 is sleeved on the outside of the clutch spring 17. A stop gear ring 4 is provided on the upper end face of the sun gear 3. A plurality of planet gears 5 are provided inside the stop gear ring 4. A planet carrier 6 is provided on the top of the stop gear ring 4. A transmission component is provided on the other side of the mounting housing 21 away from the stop gear ring 4.

[0017] In this embodiment, when the motor is working, the rotor magnet drives the first transmission gear 1 to rotate. At this time, the directional ratchet 20 rotates synchronously with the first transmission gear 1. The directional locking piece 10 engages and limits the directional ratchet 20, thereby preventing it from rotating in reverse. At the same time, the first transmission gear 1 drives the second transmission gear 2, which meshes with it, to rotate. The clutch spring 17 provides axial preload to the sun gear 3, thereby ensuring the stable connection between the sun gear 3 and the second transmission gear 2. When the rotation of the first transmission gear 1 drives the second transmission gear 2 to rotate, the second transmission gear 2 drives the sun gear 3 to rotate synchronously, thereby driving the planetary gear 5 inside the stop gear ring 4 to rotate, thereby driving the planet carrier 6 to output power.

[0018] Reference Figure 1-2The transmission assembly includes a magnetic ring gear 11, the bottom of which is located inside the mounting housing 21. A torsion spring 18 is mounted on the top of the magnetic ring gear 11. A magnetic ring 12 is sleeved on the outside of the torsion spring 18. An aluminum ring gear 13 is mounted on the outside of the protruding vertical rod on the top of the magnetic ring 12. A directional transmission gear 9 is located on the other side of the mounting housing 21 away from the planetary carrier 6. A sector gear 14 is mounted on the top of the directional transmission gear 9.

[0019] In this embodiment, the rotation of the first transmission gear 1 drives the rotation of the meshing directional transmission gear 9, thereby causing the directional transmission gear 9 to drive the magnetic ring gear 11 to rotate. When the magnetic ring gear 11 rotates, it drives the magnetic ring 12 to rotate. At this time, the torsion spring 18 accumulates elastic potential energy, which facilitates the reset of the magnetic ring 12. When the magnetic ring 12 rotates, it drives the aluminum ring gear 13 to rotate synchronously through the top vertical rod, thereby driving the meshing sector gear 14 to rotate.

[0020] Reference Figure 1-2 The top of the mounting housing 21 is provided with a tension spring 19, and the other end of the tension spring 19 is detachably fixed to the stop rod at the end of the sector gear 14. The aluminum ring gear 13 meshes with one side of the sector gear 14.

[0021] In this embodiment, when the aluminum ring gear 13 drives the sector gear 14 to rotate, the protruding tension spring 19 at the end of the sector gear 14 accumulates. When the drainage is finished, the motor stops working, and the magnetic ring gear 11 no longer rotates. The elastic restoring force of the tension spring 19 pulls the sector gear 14 to rotate in the opposite direction to reset, and then drives the magnetic ring gear 11 to return to the initial position through the aluminum ring gear 13 and the magnetic ring 12, so as to facilitate the next drainage.

[0022] Reference Figure 1-2 Inside the mounting housing 21, between the sector gear 14 and the stop gear ring 4, there is a stop pinion 15, and a buffer rubber ring 16 is installed on the outside of the stop pinion 15.

[0023] In this embodiment, during the rotation of the sector gear 14, the stop rod at its end will push the stop pinion 15, causing it to engage with the outer wall of the stop ring 4, thereby locking the stop ring 4 and stopping its rotation. This ensures that the planetary gear 5 can stably drive the planetary carrier 6 to rotate under the drive of the sun gear 3. The buffer rubber ring 16 is used to buffer when the stop pinion 15 and the stop ring 4 come into contact.

[0024] Reference Figure 1-2 The outer surface of the first transmission gear 1 meshes with the outer surface of the directional transmission gear 9, and the outer surface of the second transmission gear 2 meshes with the outer surface of the first transmission gear 1.

[0025] In this embodiment, when the first transmission gear 1 rotates, it can transmit the main power to the planetary gear through meshing with the directional transmission gear 9 and the second transmission gear 2, and at the same time, it can transmit the power to the transmission component through meshing with the directional transmission gear 9, so as to provide power for the limiting action of the stop gear ring 4.

[0026] Reference Figure 1-2 The mounting housing 21 has an internal directional locking piece 10. The top of the directional locking piece 10 engages with the outside of the directional ratchet 20, and the outside of the first transmission gear 1 meshes with the outside of the directional transmission gear 9.

[0027] In this embodiment, the directional locking member 10 is set inside the mounting shell 21 through an elastic structure, and its top end engages with the directional ratchet 20. When the first transmission gear 1 drives the directional ratchet 20 to rotate in the forward direction, the directional locking member 10 allows the directional ratchet 20 to rotate in the forward direction through the elastic structure; when the ratchet rotates in the reverse direction, the top end of the directional locking member 10 is engaged in the tooth groove of the ratchet, preventing the ratchet from rotating in the reverse direction, thereby realizing the directional rotation control of the first transmission gear 1.

[0028] Reference Figure 1-2 The top of the second transmission gear 2 is provided with a protrusion, and the interior of the sun gear 3 is provided with a groove that engages with the protrusion on the top of the second transmission gear 2.

[0029] In this embodiment, the second transmission gear 2 is a clutch gear. The protrusion on its top facilitates its installation on the second transmission gear 2 through the groove at the bottom of the sun gear 3. The second transmission gear 2 is provided with hollow ribs and protruding teeth, and the protruding teeth cooperate with the clutch ratchet inside the sun gear 3. Thus, when the motor starts, the protruding teeth of the second transmission gear 2 push the clutch ratchet to rotate, thereby driving the sun gear 3 to rotate, thus realizing the normal transmission of motion.

[0030] Reference Figure 1-2 The bottom of the planet carrier 6 is provided with several frustum-shaped protrusions. The frustum-shaped protrusions at the bottom of the planet carrier 6 are installed on the top of the planet gear 5. The outer protrusion of the hook control lever 8 cooperates with the top protrusion of the planet carrier 6.

[0031] In this embodiment, the frustum-shaped protrusion at the bottom of the planet carrier 6 is inserted into the central mounting hole of the planet gear 5, thereby achieving the purpose of driving the planet carrier 6 to rotate during the rotation of the planet gear 5. When the planet carrier 6 is driven to rotate by the planet gear 5, the protrusion at its top pushes the outer protrusion of the hook control lever 8, causing the hook control lever 8 to rotate around the sleeve, thereby driving the adjustment hook to act, so that the adjustment hook cooperates with the stop gear ring 4 on the sun gear 3.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A drain actuator for a small washing machine, characterized in that, include: A first transmission gear (1) and a mounting housing (21) are provided. A directional ratchet (20) is provided at the bottom of the first transmission gear (1). A control hook (7) is provided at the top of the mounting housing (21). A hook control lever (8) is provided at the top of the control hook (7). A second transmission gear (2) is rotatably provided on the side of the control hook (7) away from the hook control lever (8). A clutch spring (17) is provided at the top of the second transmission gear (2). A sun gear (3) is sleeved on the outside of the clutch spring (17). A stop gear ring (4) is provided on the upper end face of the sun gear (3). A plurality of planet gears (5) are provided inside the stop gear ring (4). A planet carrier (6) is provided on the top of the stop gear ring (4). A transmission assembly is provided on the other side of the mounting housing (21) away from the stop gear ring (4).

2. The washing machine drain actuator for a small washing machine according to claim 1, characterized in that: The transmission assembly includes a magnetic ring gear (11), the bottom of which is located inside the mounting housing (21). A torsion spring (18) is mounted on the top of the magnetic ring gear (11), and a magnetic ring (12) is sleeved on the outside of the torsion spring (18). An aluminum ring gear (13) is mounted on the outside of the protruding vertical rod on the top of the magnetic ring (12). A directional transmission gear (9) is provided on the other side of the mounting housing (21) away from the planetary carrier (6), and a sector gear (14) is mounted on the top of the directional transmission gear (9).

3. A washing machine drain actuator for use in a small washing machine according to claim 2, characterized in that: The top of the mounting housing (21) is provided with a tension spring (19), and the other end of the tension spring (19) is detachably fixed to the stop rod at the end of the sector gear (14). The aluminum ring gear (13) meshes with one side of the sector gear (14).

4. A washing machine drain actuator for use in a small washing machine according to claim 2, characterized in that: Inside the mounting housing (21), between the sector gear (14) and the stop gear ring (4), there is a stop pinion (15), and a buffer rubber ring (16) is installed on the outside of the stop pinion (15).

5. A washing machine drain actuator for use in a small washing machine according to claim 2, characterized in that: The outer side of the first transmission gear (1) meshes with the outer side of the directional transmission gear (9), and the outer side of the second transmission gear (2) meshes with the outer side of the first transmission gear (1).

6. A washing machine drain auger for use in a small washing machine according to claim 2, characterized in that: The mounting housing (21) is provided with an directional locking member (10) inside. The top of the directional locking member (10) engages with the outside of the directional ratchet (20), and the outside of the first transmission gear (1) meshes with the outside of the directional transmission gear (9).

7. A washing machine drain actuator for use in a small washing machine according to claim 1, characterized in that: The top of the second transmission gear (2) is provided with a protrusion, and the interior of the sun gear (3) is provided with a groove that engages with the protrusion on the top of the second transmission gear (2).

8. A washing machine drain actuator for use in a small washing machine according to claim 1, characterized in that: The bottom of the planetary carrier (6) is provided with several frustum-shaped protrusions. The frustum-shaped protrusions at the bottom of the planetary carrier (6) are installed on the top of the planetary gear (5). The outer protrusion of the hook control lever (8) cooperates with the top protrusion of the planetary carrier (6).

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