A washing tub structure that drains water using the siphon effect

Abstract

The present invention belongs to the technical field of washing machines, and particularly relates to a laundry tub structure that drains water by means of the siphon effect. It includes the tub wall and the tub bottom of the laundry tub. A siphon inlet pipe and a siphon outlet pipe are respectively arranged on the inner and outer sides of the tub wall. The upper ends of the siphon inlet pipe and the siphon outlet pipe are interconnected. An inlet trough communicating with the inside of the laundry tub is arranged on the inner side of the tub bottom. The inlet trough is communicated with the lower end of the siphon inlet pipe. A siphon drain pipe is arranged at the bottom outside of the tub wall. The lower end of the siphon outlet pipe is communicated with the water inlet of the siphon drain pipe. The water outlet of the siphon drain pipe is arranged outside the tub bottom. By adopting the siphon drainage method, there is no longer a need for a drain valve, which completely subverts the drainage method of existing tubless agitator washing machines, completely solves the problems of dirt accumulation between the inner and outer tubs of the washing machine and water leakage of the drain valve, reduces the failure rate of the washing machine, improves the user experience, and helps to promote the application of tubless agitator washing machines.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and particularly relates to a laundry tub structure that drains water by means of the siphon effect. Background Art

[0002] Fully automatic washing machines can be mainly divided into two major categories according to their structural design and working principle: drum washing machines and pulsator washing machines. Among them, most of the laundry tubs of pulsator washing machines still have an inner and outer tub structure. A major problem with this kind of laundry tub structure is that dirt and grime are likely to accumulate between the inner and outer tubs, making it difficult to clean, prone to bacterial growth, and causing secondary pollution. To solve this problem, in recent years, R & D personnel have designed pulsator washing machines without an outer tub, that is, a rotatable single-layer laundry tub is used to replace the traditional inner and outer tub structure. This requires the drainage structure to rotate with the laundry tub. The existing drainage structures for single-layer laundry tubs generally use a bottom drain valve, which has a relatively complex structure, is prone to water leakage, and has a relatively high failure rate. Therefore, the drainage of the laundry tub of pulsator washing machines without an outer tub has become a technical problem. Summary of the Invention

[0003] In view of the above situation, the present invention provides a laundry tub structure that drains water by means of the siphon effect, eliminating the need for a drain valve and optimizing the drainage structure of the laundry tub of pulsator washing machines without an outer tub.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A laundry tub structure that drains water by means of the siphon effect, including the tub wall and the tub bottom of the laundry tub. A siphon inlet pipe and a siphon outlet pipe are respectively arranged on the inner and outer sides of the tub wall. The upper ends of the siphon inlet pipe and the siphon outlet pipe are interconnected. An inlet trough communicating with the interior of the laundry tub is arranged on the inner side of the tub bottom. The inlet trough is connected to the lower end of the siphon inlet pipe. A siphon drain pipe is arranged at the bottom of the outer side of the tub wall. The lower end of the siphon outlet pipe is connected to the water inlet of the siphon drain pipe, and the water outlet of the siphon drain pipe is arranged on the outer side of the tub bottom.

[0006] Preferably, two sets of vertical siphon inlet pipes and siphon outlet pipes are symmetrically arranged along the inner and outer sides of the tub wall. Two inlet troughs are also symmetrically arranged on the inner side of the tub bottom.

[0007] Preferably, an annular cavity is arranged on the outer side of the tub wall. The interior of the cavity is divided into two symmetrically arranged circular arc-shaped siphon drain pipes by a baffle.

[0008] Further, a central through hole is opened in the middle of the tub bottom. The inlet trough is a radial groove arranged on the inner side of the tub bottom, and the inlet trough is connected to the central through hole.

[0009] Further, a bottom tray is installed below the central through hole. A pulley shaft hole for passing through the pulley shaft is provided in the middle of the bottom tray. A pulley is rotatably provided above the inner side of the barrel bottom. An annular diversion groove is provided on the periphery of the pulley. The diversion groove is communicated with the water inlet groove. An annular diversion plate is cooperatively buckled above the diversion groove. A water passing gap is left between the diversion plate and the barrel wall.

[0010] Further, the laundry barrel is installed in the washing machine housing. An upper cover plate and a control panel are provided on the upper part of the washing machine housing. A water collecting tank for receiving and collecting the water discharged from the siphon drain pipe is provided at the bottom of the washing machine housing. A discharge pipe for discharging the laundry water externally is connected to the water collecting tank. A driving mechanism for driving the pulley and the laundry barrel to rotate is provided at the bottom of the washing machine housing.

[0011] The present invention further includes other components that enable its normal use, all of which are conventional means in the art. In addition, the devices or components not defined in the present invention, such as the washing machine housing, the upper cover plate, the bottom tray, the pulley, the driving mechanism, and the control panel and control system of the washing machine, etc., all adopt the existing technologies in the art.

[0012] The beneficial effects of the present invention are as follows:

[0013] The laundry barrel structure adopting siphon effect drainage provided by the present invention adopts the siphon drainage method and no longer requires a drain valve, completely subverting the drainage method of the existing pulsator washing machine without an outer barrel, completely solving the problem of dirt accumulation between the inner and outer barrels of the washing machine, and at the same time completely solving the problem of water leakage of the drain valve of the laundry barrel, which is beneficial to reducing the failure rate of the washing machine, improving the user's experience and favorability of the pulsator washing machine without an outer barrel, and contributing to the popularization and application of the pulsator washing machine without an outer barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the laundry barrel structure in the embodiment.

[0015] Figure 2 It is Figure 1 the left view of.

[0016] Figure 3 It is Figure 1 the top view of.

[0017] Figure 4 It is Figure 1 the perspective view from the upper left corner of.

[0018] Figure 5 It is Figure 1 the perspective view from the lower right corner of.

[0019] Figure 6 It is Figure 1 the sectional view taken along the line A-A in.

[0020] Figure 7 is Figure 1 the sectional view along line B-B in

[0021] Figure 8 is Figure 1 the sectional view along line C-C in

[0022] Figure 9 is Figure 6 the enlarged structural view of part D in

[0023] Figure 10 is Figure 6 the enlarged structural view of part E in

[0024] Figure 11 is Figure 8 the enlarged structural view of part F in

[0025] In the figure: 1. barrel wall; 2. barrel bottom; 3. siphon inlet pipe; 4. siphon outlet pipe; 5. water inlet tank; 6. siphon drain pipe; 7. baffle; 8. central through hole; 9. reinforcing rib; 10. water outlet; 11. diversion groove. Specific embodiments

[0026] Next, the technical solutions of the present invention will be clearly and completely described in combination with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments.

[0027] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "middle", etc. is based on the drawings shown, only for the convenience of description.

[0028] Embodiment

[0029] As Figure 1-11 shown, a washing barrel structure using the siphon effect for drainage includes the barrel wall 1 and barrel bottom 2 of the washing barrel. The siphon inlet pipe 3 and siphon outlet pipe 4 are respectively arranged on the inner and outer sides of the barrel wall. The upper ends of the siphon inlet pipe and siphon outlet pipe are interconnected. An inlet tank 5 communicating with the inside of the washing barrel is arranged on the inner side of the barrel bottom. The inlet tank is connected to the lower end of the siphon inlet pipe. A siphon drain pipe 6 is arranged at the bottom of the outer side of the barrel wall. The lower end of the siphon outlet pipe is connected to the water inlet of the siphon drain pipe. The water outlet 10 of the siphon drain pipe is arranged on the outer side of the barrel bottom.

[0030] Two groups of vertical siphon inlet pipes and siphon outlet pipes are symmetrically arranged along the inner and outer sides of the barrel wall. Two inlet tanks are also symmetrically arranged on the inner side of the barrel bottom. An annular cavity is arranged on the outer side of the barrel wall. The inside of the cavity is divided into two symmetrically circular-arc siphon drain pipes by a baffle 7.

[0031] A central through-hole 8 is formed in the middle of the bottom of the barrel. The water inlet groove is a radial groove arranged on the inner side of the bottom of the barrel, and the water inlet groove communicates with the central through-hole. A grid-shaped reinforcing rib 9 for strengthening the strength of the bottom of the barrel is arranged on the lower side of the bottom of the barrel. A bottom tray (not shown in the figure) is installed on the lower side of the central through-hole, and a pulley shaft hole for passing through the pulley shaft is formed in the middle of the bottom tray; a pulley (not shown in the figure) is rotatably arranged above the inner side of the bottom of the barrel, and an annular diversion groove 11 is arranged on the periphery of the pulley. The diversion groove is integrally formed with the bottom of the barrel, and the diversion groove communicates with the water inlet groove. An annular diversion plate (not shown in the figure) is cooperatively buckled above the diversion groove. A water passing gap is left between the diversion plate and the barrel wall, and a balance ring (not shown in the figure) is arranged on the upper part of the barrel wall.

[0032] The washing barrel is installed in a washing machine housing (not shown in the figure). An upper cover plate (not shown in the figure) and a control panel (not shown in the figure) are arranged on the upper part of the washing machine housing; a water collecting tank (not shown in the figure) for receiving and collecting the water discharged from the siphon drain pipe is arranged at the bottom of the washing machine housing, and a drain pipe (not shown in the figure) for discharging the washing water is externally connected to the water collecting tank. A driving mechanism (not shown in the figure), such as a driving motor and a clutch, etc., which are all existing technologies commonly used in washing machines, is arranged at the bottom of the washing machine housing to drive the pulley and the washing barrel to rotate, and will not be elaborated here.

[0033] The working principle of the present invention is as follows:

[0034] When the washing machine works, the washing barrel first fills with water to a certain level, and then clothes are put in; during normal washing, the washing barrel does not rotate, but the pulley rotates to stir the washing water and clothes in the washing barrel. When the washing is over and drainage is required, the washing barrel needs to rotate for a certain period of time first, and the centrifugal force is used to make the washing water enter the siphon inlet pipe through the water inlet groove, and gradually fill the siphon outlet pipe and the siphon drain pipe, and flow out from the outlet of the siphon drain pipe; then, the washing barrel stops rotating. At this time, due to the siphon effect, the washing water will continuously flow out from the siphon drain pipe, and then be collected by the water collecting tank at the bottom of the washing machine housing, and finally discharged from the drain pipe. Then, when the clothes are dehydrated, the washing barrel rotates again. Due to the centrifugal force, the water in the clothes is gradually thrown out, and the water droplets also pass through the water inlet groove, the siphon inlet pipe, the siphon outlet pipe, the siphon drain pipe, the water collecting tank, and finally are discharged from the drain pipe.

[0035] The technical solution of the present invention is not limited to the limitations of the above specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art. Any technical deformation made within the spirit and principle of the present invention falls within the protection scope of the present invention.

Claims

1. A washing tub structure that drains water by means of the siphon effect, comprising the tub wall and the tub bottom of the washing tub, characterized in that: A siphon inlet pipe and a siphon outlet pipe are respectively arranged on the inner and outer sides of the barrel wall. The upper ends of the siphon inlet pipe and the siphon outlet pipe are connected to each other. An inlet trough communicating with the inside of the laundry barrel is arranged on the inner side of the barrel bottom. The inlet trough is connected to the lower end of the siphon inlet pipe. A siphon drain pipe is arranged at the bottom of the outer side of the barrel wall. The lower end of the siphon outlet pipe is connected to the water inlet of the siphon drain pipe. The water outlet of the siphon drain pipe is arranged on the outer side of the barrel bottom. A circular cavity is arranged on the outer side of the barrel wall. The inside of the cavity is divided into two symmetrical circular arc-shaped siphon drain pipes by a baffle. An annular diversion trough is arranged around the agitator. The diversion trough is integrally formed with the barrel bottom and is connected to the inlet trough.

2. The structure of a laundry tub that drains water using the siphon effect according to claim 1, characterized in that: Two groups of vertical siphon inlet pipes and siphon outlet pipes are symmetrically arranged along the inner and outer sides of the barrel wall.

3. The structure of a laundry tub that drains water using the siphon effect according to claim 2, characterized in that: Two inlet troughs are also symmetrically arranged on the inner side of the barrel bottom.

4. A laundry tub structure that drains water using the siphon effect according to claim 3, characterized in that: A central through hole is opened in the middle of the barrel bottom. The inlet trough is a radial groove arranged on the inner side of the barrel bottom and is connected to the central through hole.

5. The structure of a laundry tub that drains water using the siphon effect according to claim 4, characterized in that: A bottom tray is installed below the central through hole. A agitator shaft hole for passing through the agitator shaft is opened in the middle of the bottom tray. An agitator is rotatably arranged above the inner side of the barrel bottom.

6. The laundry tub structure with siphon effect drainage according to claim 5, characterized in that: An annular diversion plate is cooperatively buckled above the diversion trough. A water passing gap is left between the diversion plate and the barrel wall.

7. The structure of a washing tub that drains water using the siphon effect according to claim 6, characterized in that: A washing machine housing is arranged around the laundry barrel. A water collecting trough for collecting the water discharged from the siphon drain pipe is arranged at the bottom of the washing machine housing. The water collecting trough is externally connected with a discharge pipe for discharging the washing water outside.

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