WO2008092334A1

WO2008092334A1 - A spraying type drum washing machine having independent water tank

Info

Publication number: WO2008092334A1
Application number: PCT/CN2007/003621
Authority: WO
Inventors: Jihai Xu
Original assignee: Jihai Xu
Priority date: 2007-01-26
Filing date: 2007-12-17
Publication date: 2008-08-07
Also published as: CN101012616A

Abstract

A spraying type drum washing machine having independent water tank is disclosed. The drum washing machine includes a casing of washing machine, a base plate, a drum, a fixed tub, a vibration damping supporting structure, a driving mechanism of drum, a water circulating system, and a water supply/drain mechanism. The drum is mounted inside of the fixed tub. Said water circulating system includes a circulating water coupling hose, a spraying device and a water pump. The water supply/drain mechanism of the washing machine is connected with the water circulating system. The independent water tank separated from the fixed tub is set in the said water circulating system. The water tank lies in the space between the casing and the fixed tub. The washing machine having the independent water tank is favorable to save water and simplify structure.

Description

Spray drum washing machine with independent water tank

The present invention relates to a drum washing machine, and more particularly to a spray drum washing machine having a separate water tank, which is advantageous for water saving and simplified structure. Background technique

In the prior art, the washing device of the drum washing machine is mainly composed of a drum, a fixed outer tub, a drum driving mechanism, and an inlet/drainage system. Among them, the drum driving mechanism is composed of a rotating shaft, a transmission mechanism and a motor, and is connected with the rotating shaft for The drum set for washing the laundry is placed in a fixed outer tub, and the two are generally coaxial and placed horizontally. The fixed outer tub is both a water tank and a water trap. In the process of washing clothes, the fixed outer tub is a water tank for storing the mixed liquid of tap water and detergent, and the mixed liquid has a certain water level in the fixed outer tub. In the clothes in the soaking drum's, when the drum rotates, the clothes at the bottom of the drum are lifted to a high place and then fall down for a beat-type washing; in the process of dehydration, the fixed outer tub is a water collector, and the drum rotates at a high speed, utilizing The centrifugal force and a plurality of dewatering through holes on the cylindrical surface of the drum pull the moisture in the clothes out of the drum, the water that is extracted is collected by the fixed outer tub, and is discharged out of the washing machine through a drainage system that connects the bottom of the outer tub; during the rinsing process It usually includes two parts, rinsing and dehydration. The rinsing process is similar to the washing process, that is, the fixed outer tub is a water tank, and the rinsing drainage is similar to the dehydration process.

' That is, the fixed outer tub is a water collector. The shortcomings are: ω drum washing machine is a fully automatic washing machine, the water intake of each program is controlled by the program, therefore, the water intake design will generally meet the maximum washing capacity of the drum washing machine, which leads to the need to fix the outer tub. Larger size to meet the requirements of water storage; on the other hand, because the size of the washing machine has formed a certain standard, it is generally not suitable to change, in the case of basically the same size, want to be in the existing fixed outer barrel It is difficult to increase the washing capacity of the washing machine by the cylindrical barrel structure that is coaxially fitted with the drum. (2) Although the drum washing machine saves water compared to the washing machine, it is more difficult to save water.

In the prior art, the spray drum washing machine can save more water than the non-spray drum washing machine, but the former has more water circulation system than the latter, and the circulation system is composed of a spray nozzle, a water pump and a hose. The sprinkler, the water pump and the drain of the fixed tub are connected in turn by a hose, and the inlet/drainage system of the washing machine communicates with the circulation system through the valve member. The tap water enters from the water inlet of the washing machine, and is sprayed into the drum through the spray nozzle to wet the drum, the clothes inside, Excess water flows into the fixed outer tub through the through hole in the drum, and is sprayed into the drum from the drain port through the water pump into the spray nozzle to form a wash water circulation. However, the existing spray drum washing machine is not designed for increasing the washing capacity, and the fixed outer drum still needs a certain amount of water storage, and the washing capacity is not significantly improved. ,

In addition, U.S. Patent No. 4,941,333 discloses a single-cylinder drum washing machine, which removes the fixed outer cylinder, and instead adds a dewatering chamber separated from the washing tub at the rear end of the drum, and the washing cylinder of the drum is a closed container. The pipe is arranged to communicate with the dewatering chamber at the rear end, in order to ensure that the water in the washing tub can all flow into the dewatering chamber, the drum is designed to be in the shape of a truncated cone, the end face having a larger diameter is the rear end face, and the end face having a smaller diameter is the front end. Open face. Although it is possible to increase the washing capacity without changing the outer shape of the outer casing due to the reduction of the fixed outer cylinder, however, in order to carry out the single cylinder washing, other problems such as ' The dehydration structure is special and complicated, which makes it difficult to repair if the part fails. For example, the dehydration chamber is located at the rear end surface of the drum and will rotate with the drum. Therefore, the heater, detector, etc., which are generally equipped with the drum washing machine, are usually fixed. The equipment outside the outer cylinder is difficult to set up because the heater fixed on the drum rotates with the rotation of the drum, which makes it difficult for the heater to continuously heat the liquid in the drum. The way, but the separation heating makes the thermal efficiency greatly affected. Summary of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a spray drum washing machine having a separate water tank 0 which is advantageous for water saving and simplified structure.

The technical solution adopted by the present invention to solve the technical problem thereof is: a spray type drum washing machine with a separate water tank, which comprises a washing machine casing, a bottom plate, a drum, a fixed outer tub, a shock absorbing support mechanism, a driving mechanism of the drum, and a water circulation The system and the inlet/drain mechanism of the washing machine, wherein the drum is installed in the fixed outer tub, the water circulation system comprises a circulating water connecting hose, a spraying mechanism and a water pump, and the inlet/drain mechanism of the washing machine is connected with the water circulation system, The utility model is characterized in that a separate water storage tank separated from the fixed outer tub is added in the water circulation system, and the water storage tank is located in a space between the outer casing and the fixed outer tub.

The invention adopts a water storage tank separated from the fixed outer tub, which can be arranged on any line of 0 on the water circulation line formed by the circulating water connecting hose, the spraying mechanism, the fixed outer tub and the drain port and the water pump. Flexible setting according to the space inside the washing machine casing, bringing a large design space to the internal structure of the washing machine, and between the drum and the fixed outer tub The gap is as small as possible so that the diameter of the drum is increased as much as possible to increase the washing capacity. The invention can be improved as follows: the water storage tank is installed on the bottom plate of the washing machine, and the installation degree is lower than the height of the fixed outer bucket drain port, and the water storage tank is respectively connected to the drain port of the fixed outer tub by the hose and The water pump is connected and the other end of the pump is connected to the spray mechanism •5 via a hose. In this case, the drain port of the fixed outer tub and the discharged water can flow into the water storage tank by the action of gravity, and then the water pump in the water storage tank is pumped into the spray mechanism with a higher position through the water pump to circulate the water. The spray method enters the drum again, wets the clothes in the drum, and the excess water is discharged from the drain port of the fixed outer tub, enters the water tank, and so on, until the washing or rinsing process ends.

0 The water storage tank can also adopt the following installation manner: the water storage tank can be installed in the middle and upper space between the outer casing of the washing machine and the fixed outer tub, and the installation height is higher than the height of the drain outlet of the fixed outer tub. The water storage tank is connected between the spray mechanism and the water pump, and the other end of the water pump is connected to the drain port of the fixed outer tub. In this case, since the installation height of the water storage tank is higher than the height of the fixed outer drum drain port, the water discharged from the drum needs to be pumped to pump the '5 water into the water storage tank, and then sprayed into the drum through the spray mechanism. Inside.

The shower mechanism of the present invention may be a shower nozzle located in front of the front port of the drum, and is also a drum type shower mechanism that feeds water from the center of the drum shaft as described below.

The present invention can be further improved by using a drum type sprinkler mechanism that feeds water from the center of the drum shaft. The drum type sprinkling mechanism needs to adopt a water circulation system including a rotating shaft inlet water passage in the circulation line, that is, a rotating shaft shaft that drives the rotating drum is a hollow rotating shaft tube, and has a water inlet passage for supplying water to the drum type spraying mechanism, and the rotating shaft has The front end opening of the drum connection is in communication with a spray mechanism in the drum, and the rear end opening of the shaft is connected to the hose of the water circulation system.

The drum type sprinkling mechanism comprises a spray water inlet located at the center of the drum bottom, a spray pipe located on the bottom surface of the drum, and a spray channel extending along the axial direction of the drum on the cylindrical surface of the drum and The spray hole is configured, wherein the outer end of the spray water inlet has an interface for connecting with the water inlet passage of the rotating shaft, and the inner end has a radial water dividing channel for water distribution to each spray pipe, One end of the spray pipe is connected to the radial water dividing channel on the spray inlet, and the other end is connected to the spray channel. The shower holes of the shower channel may be arranged in a plurality of linear intervals. The tap water is connected to the rotating shaft through a hose, enters the sprinkling water inlet at the center of the bottom of the drum through the water inlet passage, and then passes through the spray pipe and the spray passage from the spray hole to the underwear The spray is sprayed, and the linearly arranged spray holes enable the water to be sprayed evenly along the axial direction of the drum. This solves the problem that the conventional spray drum washing machine is provided with a spray nozzle at the front door, and the spray water often cannot reach the drum. At the bottom, the problem of uneven spray effect.

The water storage tank according to the present invention may be a geometrical three-dimensional structure such as a cube, a rectangular parallelepiped, a cylindrical body, a sphere, a round body, or a polygonal three-dimensional structure, or may be formed by adapting to a space in a washing machine casing. The regular three-dimensional shape, that is, the water storage. The shape of the box may be a multi-dimensional shape of a three-dimensional box shape.

The drain pipe in the drainage system of the washing machine of the present invention can be directly connected to the water storage tank and controlled by the drain valve in the drainage system; the drain pipe in the water discharge system can also be connected to the water circulation system through the three-way valve On the hose connected to the drain of the outer barrel, the drain valve on the drain pipe controls the drainage of the washing machine.

The installation position of the water storage tank according to the present invention can be determined according to actual conditions, and the structure of the water storage tank can also be various structures, so that on the one hand, the free space in the casing of the washing machine can be more rationally utilized, and the storage tank can be Various types of washing machines are used with 5 sets, which improves the compatibility of the storage tank and expands its use range.

The invention can also be improved as follows: The heater is installed in the water storage tank, and the heating device can be an electric heating tube, which can be directly installed on the side wall of the water storage tank to directly heat the water; or can be installed by using a hot plate. The water is directly heated on the bottom of the water tank. Since the heater can be heated in direct contact with water, the thermal efficiency is optimized.

0 Compared with the prior art, the present invention has the following remarkable effects:

(1) The invention adopts an independent water storage tank structure separated from the fixed outer tub to cooperate with the spraying mechanism, and can set a reasonable capacity small water tank for water storage or water supply, which not only saves a lot of water consumption of the washing machine, but also simplifies the structure, thereby facilitating Reduce the manufacturing cost of the drum washing machine;

(2) Due to the use of a separate water storage tank, the gap between the drum and the fixed outer tub may be as small as 5, that is, the diameter of the drum may be increased to increase the washing capacity;

(3) Due to the independence and small volume of the water storage tank, the heating performance of the drum washing machine and the improvement of the heat preservation performance are provided. A great development space, such as installing the heater in the water storage tank, thereby improving Thermal efficiency, it is also possible to wrap insulation materials outside the water storage tank, thereby greatly saving electricity and reducing energy consumption;

0 (4) Due to the independence of the water storage tank, the shape can be adapted to the shape of the space between the outer casing of the washing machine and the fixed outer tub, and the mounting position can also be selected inside the outer casing. 'Up, down, down, left, right, etc. can be placed in any space, making the structure design of the washing machine more flexible. DRAWINGS

Figure 1 is a schematic view showing the internal structure of the spray drum washing machine of the present invention; '5 Figure 2 is a rear view of Figure 1;

Figure 3 is a front cross-sectional view of the drum of the present invention;

Figure 4 is a partial enlarged view of Figure 3;

Figure 5 is a front elevational view of the bottom of the drum of the present invention. detailed description

喷 Figure 1 to 5 shows a spray drum washing machine with a separate independent water tank, which is a tilt-shaft drum washing machine, which comprises a washing machine casing 1, a bottom plate 2, a drum 3, a fixed outer tub 4, and a reduction a shock supporting mechanism, a driving mechanism of the drum, a water circulation system, and an inlet/drainage mechanism of the washing machine, wherein the drum 3 is installed in the fixed outer tub 4, the central axis of the fixed outer tub 4 is inclined, and the water circulation system includes a circulating water connection soft The pipe 7, the sprayer 5, the water pump 5 and a separate water storage tank 6 separated from the fixed outer tub 4, the water pump 5 is mounted on the bottom plate 2, and the inlet/drain mechanism of the washing machine passes through the corresponding link of the three-way valve and the water circulation system The water tank 6 is connected in a cubic box shape on the bottom plate 2 of the left space between the outer casing 1 and the fixed outer tub 4, and the installation height is lower than the height of the drain port of the fixed outer tub 4, and the water storage tank 6 passes The hose 7 is connected to the drain port of the fixed tub 4 and the water pump 5, respectively, and the other end of the water pump 5 is connected to the shower water inlet 9 of the shower mechanism through the hose 7. An electric heating tube is also installed on the inner side wall of the water storage tank 6, which can directly heat the water.

The water storage tank of the present invention can also adopt the following installation manner: the water storage tank can be installed in the middle and upper space between the outer casing of the washing machine and the fixed outer tub, and the installation height is higher than the height of the drain outlet of the fixed outer tub, and the water tank connection Between the sprinkler mechanism and the water pump, the other end 5 of the water pump is connected to the drain port of the fixed outer tub.

The shower mechanism in this embodiment employs a drum type shower mechanism that receives water from the center of the drum shaft. The drum type sprinkling mechanism needs to include a rotating shaft water inlet passage in the water circulation system, that is, driving, and the rotating shaft 8 rotating the drum is a hollow rotating shaft tube, and has a water inlet passage for supplying water to the drum type spraying mechanism, and the rotating shaft 8 is connected with the drum 3. The front end opening is in communication with a spray mechanism in the drum 3, and the rear end opening of the shaft 8 is connected to the hose 7 of the water circulation system.

The drum type sprinkling mechanism is located at the spray inlet 9 located at the center of the bottom of the drum 3 a spray pipe 10 on the bottom surface of the drum 3, a shower channel 1 1 extending along the axial direction of the drum 3 on the cylindrical surface of the drum 3, and a spray hole 12 opened on the spray channel 1 1 , wherein the spray inlet The outer end of the nozzle 9 has an interface for contacting the water inlet passage of the rotating shaft 8, and the inner end has a radial water dividing passage for water distribution to each of the spray pipes 10, the radial water dividing pipe and the spray pipe 10 The number of nozzles 10 is connected to the radial water dividing channel on the spray inlet 9 , and the other end is connected to the shower channel 11 . The spray holes 12 in the shower channel 1 are oriented in the direction of the opening, and are arranged in a plurality of rows at a linear interval. The tap water is connected to the hollow rotating shaft 8 through the hose 7, and enters the spray water inlet 9 at the center of the bottom of the drum through the water inlet passage, and then the laundry in the cylinder is sprayed from the spray hole 12 through the spray pipe 10 and the spray passage 11. Spraying, the linearly arranged spray holes 12 allow water to be uniformly sprayed in the axial direction of the drum. The above embodiments are merely illustrative of the present invention, and the scope of the present invention is not limited to the above embodiments. The structure of the independent water tank in this embodiment can also be applied to other spray type drum washing machines, and the objects of the present invention can be achieved by those skilled in the art in light of the above disclosure.

Claims

Rights request

What is claimed is: 1. A spray type drum washing machine having a separate water tank, comprising: a washing machine casing, a bottom plate, a drum, a fixed outer tub, a shock absorbing support mechanism, a driving mechanism of the drum, a water circulation system, and an inlet/drain mechanism of the washing machine, wherein the drum Installed in a fixed outer tub, said water

5 The circulation system comprises a circulating water connection hose, a sprinkling mechanism and a water pump, and the inlet/drain mechanism of the washing machine is connected to the water circulation system, and is characterized in that: a separate water storage tank separated from the fixed outer tub is added to the water circulation system. The water storage tank is located in a space between the outer casing and the fixed outer tub.

2 . The spray drum washing machine with independent water tank according to claim 1 , wherein: the water storage tank is disposed in a circulating water connecting hose, a spraying mechanism, a fixed outer tub and a drainage thereof. The port and the pump are connected to any one of the lines on the water circulation line.

3 . The spray drum washing machine with independent water tank according to claim 2 , wherein: the water storage tank is installed on a bottom plate of the washing machine, and the installation height 5 is lower than the height of the fixed outer bucket drain The water storage tank is connected to the water outlet of the fixed outer tub and the water pump through a hose, and the other end of the water pump is connected to the spray mechanism through the hose.

4. A spray-type drum washing machine with a separate water tank according to claim 2, wherein: the water storage tank is installed in a middle and upper space between the outer casing of the washing machine and the fixed outer casing, and is installed The height is higher than the temperature of the fixed outer bucket drain port, the water storage tank is connected between the spray mechanism and the water pump, and the other end of the water pump is connected with the drain port of the fixed outer tub.

The spray type drum washing machine with a separate water tank according to claim 3 or 4, wherein: the spray mechanism is a drum type spray mechanism that enters ice from the center of the drum shaft, The drum type sprinkling mechanism uses a water circulation system including a water inlet passage of the rotating shaft in the circulation line, that is, the rotating shaft of the driving drum is a hollow rotating shaft tube, and has a water inlet passage for supplying water to the drum type-spraying mechanism, the rotating shaft and the rotating shaft The front end opening of the connection communicates with a sprinkler mechanism in the drum, and the rear end opening of the shaft is connected to the hose of the water circulation system.

6 . The spray drum washing machine with independent water tank according to claim 5 , wherein: the drum type spray mechanism is sprayed by a bottom of the drum bottom a shower pipe which is sprayed into the ice port, located on the bottom surface of the drum, a spray channel extending along the axial direction of the drum and arranged on the cylindrical surface of the drum, and a spray hole thereon, wherein the outer end of the spray water inlet is provided for An interface connected to the water inlet passage of the rotating shaft, the inner end has a radial water dividing channel for distributing water to each spray pipe, and one end of the spray pipe is connected with the radial water dividing channel on the spray water inlet The other end is connected to the shower channel.

The spray-type drum washing machine with a separate water tank according to claim 6, wherein: the spray holes of the shower passage are arranged in plurality, arranged at a linear interval.

The spray drum washing machine with independent water tank according to any one of claims 1 to 4, characterized in that: the water storage tank can be a square or a rectangular parallelepiped or a cylindrical body or a geometry of a sphere or a circular body. A three-dimensional structure, or a polygonal three-dimensional structure.

The spray drum washing machine with a separate water tank according to any one of claims 1 to 4, wherein: the drain pipe in the drainage system of the washing machine is directly connected to the water storage tank, and passes through the drainage system. The drain valve is controlled; or the drain pipe in the drainage system is connected to the hose connected to the drain outlet of the water circulation system through a three-way valve, and the drain valve on the drain pipe controls the drainage of the washing machine.

The spray drum washing machine with a separate water tank according to any one of claims 1 to 4, characterized in that: a heater is installed in the water storage tank, and the heater is an electric heating tube, which is directly installed on The water is directly heated on the side wall of the water storage tank; or the heater is heated by a hot plate installed on the bottom surface of the water storage tank.