CN110438754B - Overflow structure of lower drainage drum washing machine - Google Patents
Overflow structure of lower drainage drum washing machine Download PDFInfo
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- CN110438754B CN110438754B CN201810422034.8A CN201810422034A CN110438754B CN 110438754 B CN110438754 B CN 110438754B CN 201810422034 A CN201810422034 A CN 201810422034A CN 110438754 B CN110438754 B CN 110438754B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/081—Safety arrangements for preventing water damage
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention discloses an overflow structure of a lower drainage drum washing machine, which comprises: the bottom of the outer cylinder is provided with a water outlet which is communicated with a lower drain pipe provided with a drain valve; the outer cylinder is provided with an overflow port, the overflow port is higher than the highest washing water level of the outer cylinder, the overflow port is communicated with the lower drain pipe through an overflow pipe, and the communication position is positioned at the downstream of the drain valve. The overflow port on the outer barrel of the drum type washing machine is communicated with the drain pipe through the overflow pipe, so that the washing crystal overflow pipe which is higher than the highest washing water level in the outer barrel flows out to the washing machine at the drainage outer drainage position, and the problems of excessive water filling in the outer barrel of the washing machine and overflow of the washing machine are avoided. Meanwhile, as the overflow pipe is arranged on the lower drain pipe at the downstream of the drain valve, overflow water flow is directly discharged outside through the drain pipe, the phenomena of failure of the drain valve and unsmooth discharge of overflow water flow are avoided, and the purpose of smoothly discharging the overflow water flow of the lower-drainage drum washing machine is realized.
Description
Technical Field
The invention relates to a drum washing machine in the field of household appliances, in particular to an overflow structure of a lower drainage drum washing machine.
Background
Since the existing drum washing machine is introduced from europe, no overflow pipe is generally provided on the drainage system. In the long-term use process of the drum washing machine, the problems that an electromagnetic valve, a drainage pump and the like in a drainage system are invalid, a water level sensor is misjudged, or a water inlet component cannot be closed and the like can be generated, so that the control of water inlet of the drum washing machine is invalid, the washing machine continuously inlet water for a long time, and the outer cylinder of the drum washing machine is filled with water inlet flow until overflow are caused.
Therefore, no matter the drainage system of the drum washing machine is in an upper drainage form or a lower drainage form, when the drainage valve is out of order, and the like, if the water is fed for a long time, the drainage system is not started, the whole outer barrel of the drum washing machine is filled with washing water, so that the washing water in the drum overflows to the outside of the drum washing machine from the water feeding box and the like, the floor at the place where the drum washing machine is placed can be soaked, more articles of a user's home are damaged, and property loss can be brought to the user.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide an overflow structure of a drum washing machine, so as to realize the purposes of timely guiding excessive water inlet of the drum washing machine and discharging along with a drain pipe, and further achieve the purpose of avoiding the situation that the drum washing machine overflows to the outside of a box body. Meanwhile, another object of the present invention is to provide an overflow structure of a lower drainage drum washing machine, so as to smoothly discharge excessive water in the upper drainage drum washing machine and avoid overflow of the lower drainage drum washing machine.
In order to achieve the above purpose, the invention adopts the following specific technical scheme:
an overflow structure of a lower drainage drum washing machine, comprising: the bottom of the outer cylinder is provided with a water outlet which is communicated with a lower drain pipe provided with a drain valve; the outer cylinder is provided with an overflow port, the overflow port is higher than the highest washing water level of the outer cylinder, the overflow port is communicated with the lower drain pipe through an overflow pipe, and the communication position is positioned at the downstream of the drain valve.
Further, a height difference exists between the overflow port and the highest washing water level of the outer barrel, and the height difference is more than half of the highest washing water level; preferably, the highest washing water level is the difference between the water level of the washing water in the outer tub and the lowest position of the outer tub when the drum washing machine performs a washing process at the highest water level and water inflow is completed.
Further, the level of the overflow pipe at any position is not lower than the level of the overflow pipe downstream of the position.
Further, the overflow pipe is provided with a one-way valve, and the water flow direction in the pipeline is limited to flow only from the communicating end of the outer cylinder to the communicating end of the upper drain pipe.
Further, the overflow port is arranged on one side of the wall of the outer cylinder, and the overflow port is arranged at the center height of the outer cylinder; preferably, the overflow port and the bottom center of the outer cylinder are positioned in the same horizontal plane.
Further, the overflow port of the outer barrel is provided with a leakage-proof structure so as to reduce the outflow of washing water from the outer barrel due to adhesion when the outer barrel rotates; preferably, the anti-leakage structure comprises at least two water blocking ribs which are arranged at intervals along the axis at the overflow port, and adjacent water blocking ribs are arranged in a staggered manner in the axis direction of the overflow port so as to form a tortuous overflow flow passage.
Further, the lower end of the first water retaining rib close to one side of the inner part of the outer cylinder is in sealing connection with the inner wall of the overflow port, and a gap is arranged between the upper end of the first water retaining rib and the inner wall of the overflow port; the upper end of the second water retaining rib far away from one side of the inner part of the outer cylinder is hermetically connected with the inner wall of the overflow port, and a gap is arranged between the lower end of the second water retaining rib and the inner wall of the overflow port; and the upper end horizontal height of the first water blocking rib is lower than the lower end horizontal height of the second water blocking rib.
Further, the overflow port is provided with a connector communicated with the overflow pipe, the connector is hollow, the hollow part forms a runner which gradually inclines downwards towards the communication end inside the outer cylinder, one end of the runner is respectively communicated with the inside of the outer cylinder through the overflow port, and the other end of the runner is communicated with a lower drain pipe at the downstream of the drain valve through the overflow pipe.
Further, one end of the overflow pipe is communicated with the overflow port, and the other end of the overflow pipe is communicated with a pipeline part of the lower drain pipe at the downstream of the drain valve; or one end of the overflow pipe is communicated with the overflow port, and the other end of the overflow pipe is communicated with the outlet end of the drain valve, so that overflow water flows through the overflow pipe and the outlet of the drain valve to be communicated with the lower drain pipe.
Further, the lower drain pipe is arranged at the lower part of the outer cylinder, and any position of the lower drain pipe is lower than the height of the water outlet at the bottom of the outer cylinder; preferably, the first end of the lower drain pipe is communicated with the outer cylinder water outlet, the second end of the lower drain pipe is positioned at a water draining position outside the washing machine, and the lower drain pipe gradually extends downwards or horizontally from the first end to the second end, so that the horizontal height of any position of the lower drain pipe is not higher than the horizontal height of any downstream pipeline position.
Compared with the prior art, the invention has the following beneficial effects:
the overflow port on the outer barrel of the drum type washing machine is communicated with the drain pipe through the overflow pipe, so that the washing crystal overflow pipe which is higher than the highest washing water level in the outer barrel flows out to the washing machine at the drainage outer drainage position, and the problems of excessive water filling in the outer barrel of the washing machine and overflow of the washing machine are avoided. Meanwhile, as the overflow pipe is arranged on the lower drain pipe at the downstream of the drain valve, overflow water flow is directly discharged outside through the drain pipe, the phenomena of failure of the drain valve and unsmooth discharge of overflow water flow are avoided, and the purpose of smoothly discharging the overflow water flow of the lower-drainage drum washing machine is realized.
Meanwhile, the invention has simple structure and obvious effect, and is suitable for popularization and use.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
FIGS. 1 and 2 are schematic views showing different connection modes of a lower drain drum washing machine according to an embodiment of the present invention;
fig. 3 and 4 are schematic structural views showing different connection modes of the upper drain drum washing machine in the second embodiment of the present invention;
fig. 5 to 7 are enlarged views illustrating different structures of the overflow port of the drum washing machine at a in fig. 1 according to an embodiment of the present invention.
Description of main elements: 1-box body, 2-outer cylinder, 3-inner cylinder, 4-hanging spring, 5-shock absorber, 6-lower drain pipe, 7-drain valve, 8-upper drain pipe, 9-drain pump, 10-overflow pipe, 11-first part, 12-bending part, 13-second part, 14-joint, 15-first water retaining rib, 16-second water retaining rib, 17-overflow port, 18-footing, 19-water retaining rib, 20-water outlet.
Detailed Description
Example 1
As shown in fig. 1 and 2, an overflow structure of a lower drainage drum washing machine is described in this embodiment, which includes: the case 1, the case 1 is installed therein with the outer tub 2, and the outer tub 2 is installed therein with a washing part agitating laundry to beat the laundry by lifting force, for example: an inner cylinder 3; the upper end of the outer cylinder 2 is connected with the box body 1 in a hoisting way through a hanging spring 4, and the lower end of the outer cylinder is connected with the bottom of the box body 1 through a shock absorber 5 in a supporting way capable of generating elastic deformation; the bottom of the box 1 is provided with feet 18 which are supported on the ground. The bottom of the outer cylinder 2 is provided with a water outlet 20, and the water outlet 20 is communicated with a lower water outlet pipe 6 provided with a water outlet valve 7; the outer barrel 2 is provided with an overflow port 17, the overflow port 17 is higher than the highest washing water level of the outer barrel 2, the overflow port 17 is communicated with the lower drain pipe 6 through the overflow pipe 10, and the communication position is positioned at the downstream of the drain valve 7.
The overflow port on the outer barrel of the drum type washing machine is communicated with the drain pipe through the overflow pipe, so that the washing crystal overflow pipe which is higher than the highest washing water level in the outer barrel flows out to the washing machine at the drainage outer drainage position, and the problems of excessive water filling in the outer barrel of the washing machine and overflow of the washing machine are avoided. Meanwhile, as the overflow pipe is arranged on the lower drain pipe at the downstream of the drain valve, overflow water flow is directly discharged outside through the drain pipe, the phenomena of failure of the drain valve and unsmooth discharge of overflow water flow are avoided, and the purpose of smoothly discharging the overflow water flow of the lower-drainage drum washing machine is realized.
In this embodiment, there is a height difference between the overflow 17 and the highest washing water level of the tub 2, which is greater than one half of the highest washing water level. By setting a height difference between the highest washing water level of the overflow port and the highest washing water level of the outer barrel, an error allowance is provided for smooth discharge of washing water from the overflow port, and false start of overflow discharge is avoided. In the embodiment, the highest washing water level is the difference between the liquid level of the washing water in the outer cylinder and the lowest position of the outer cylinder when the drum washing machine executes a washing program with the highest water level and water feeding is finished.
In this embodiment, the level of any position of the overflow pipe 10 is not lower than the level of the overflow pipe 10 downstream of the position, so as to ensure that the overflow water flowing from the overflow port automatically flows to the water outlet under the action of gravity, and ensure the smoothness of the overflow water flow direction.
In this embodiment, the overflow pipe 10 is provided with a one-way valve, and the direction of water flow in the pipeline is limited to flow only from the communicating end of the outer cylinder 2 to the communicating end of the upper drain pipe 8 (not shown in the drawings). The one-way valve is arranged on the overflow pipe, so that the water flow direction in the overflow pipe is unique, and the condition that the water drainage pressure in the drain pipe is overlarge to cause the water to flow back to the outer barrel from the overflow pipe is avoided.
In the embodiment, the overflow port 17 is arranged at one side of the wall of the outer cylinder 2, and the overflow port 17 is arranged at the center height of the outer cylinder 2; preferably, the overflow 17 is positioned in the same horizontal plane as the bottom center of the outer cylinder 2. The overflow port is arranged at the center height of the outer cylinder, so that the overflow port is arranged at the outermost side of the outer cylinder and at the farthest end away from the center of the outer cylinder horizontally, the overflow pipe is arranged at the overflow port conveniently, and the interference between the trend of the overflow pipe and the outer cylinder is reduced; meanwhile, the overflow port is arranged at the center height of the outer cylinder, so that the horizontal cross section of the outer cylinder where the overflow port is arranged is the maximum value of all horizontal cross sections of the outer cylinder, the cross section area of the outer cylinder corresponding to the overflow port is the maximum, the flow velocity of water in the outer cylinder is further slowed down, and the smoothness of overflow water flow output is improved.
In this embodiment, the lower drain pipe 6 is provided at the lower portion of the outer tub 2, and any position of the lower drain pipe 6 is lower than the height of the drain outlet at the bottom of the outer tub 2.
In this embodiment, the first end of the lower drain pipe 6 is communicated with the drain outlet of the outer tub 2, and the second end is located at the drain outside the washing machine, and the lower drain pipe 6 gradually extends downward or horizontally from the first end to the second end, so that the horizontal height at any position of the lower drain pipe 6 is not higher than the horizontal height at any downstream pipeline position. Through the arrangement, water flow in the lower drain pipe of the washing machine automatically flows to the outside of the washing machine from the water outlet end under the action of gravity, so that the smoothness of the water flow of the water drainage is improved, and the water flow accumulation condition in the lower drain pipe is effectively avoided.
In this embodiment, as shown in fig. 1, one end of the overflow pipe 10 is communicated with the overflow port 17, and the other end is communicated with a pipe portion of the lower drain pipe 6 downstream of the drain valve 7; alternatively, as shown in fig. 2, one end of the overflow pipe 10 is communicated with the overflow port 17, and the other end is communicated with the outlet end of the drain valve 7, so that overflow water flows through the overflow pipe 10, and the outlet of the drain valve 7 is communicated with the lower drain pipe 6.
Example two
As shown in fig. 3 and 4, the present embodiment describes an overflow structure of an upper drain drum washing machine, which includes: the box, install urceolus 2 in the box, install the washing part that stirs clothing in order to utilize lifting force to beat washing clothing in the urceolus 2, for example: an inner cylinder 3; the upper end of the outer cylinder 2 is connected with the box body 1 in a hoisting way through a hanging spring 4, and the lower end of the outer cylinder is connected with the bottom of the box body 1 through a shock absorber 5 in a supporting way capable of generating elastic deformation; the bottom of the box 1 is provided with feet 18 which are supported on the ground. The bottom of the outer cylinder 2 is provided with a water outlet 20, and the water outlet 20 is communicated with an upper water outlet pipe 8 provided with a water discharging pump 9; the outer barrel 2 is provided with an overflow port 17, the overflow port 17 is higher than the highest washing water level of the outer barrel 2, the overflow port 17 is communicated with the upper drain pipe 8 through the overflow pipe 10, and the communication position is positioned at the downstream of the drain pump 9 and close to the end of the drain pipe communicated with the outside.
The overflow port on the outer barrel of the drum type washing machine is communicated with the drain pipe through the overflow pipe, so that the washing crystal overflow pipe which is higher than the highest washing water level in the outer barrel flows out to the washing machine at the drainage outer drainage position, and the problems of excessive water filling in the outer barrel of the washing machine and overflow of the washing machine are avoided. Meanwhile, as the overflow pipe is arranged on the upper drain pipe close to the end, which is communicated with the outside, of the drain pipe, overflow water is directly discharged outside through the drain pipe, the phenomena of malfunction of the drain pump and unsmooth discharge of overflow water are avoided, and the aim of smoothly discharging the overflow water of the upper-drain drum washing machine is fulfilled.
In this embodiment, the upper drain pipe 8 includes a bending part 12 higher than the highest washing water level of the outer tub 2, one end of the bending part 12 is communicated with the drain pump 9 through a first connecting part 11 extending downward, the other end of the bending part 12 is communicated through a second connecting part 13 extending downward, and an extending end of the second connecting part 13 forms an end of the upper drain pipe 8 communicated with the outside; the overflow pipe 10 is communicated with a second connecting part 13 of the upper drain pipe 8; preferably, the level of the bent portion 12 is higher than the level of the top of the outer tub 2.
By connecting the overflow pipe to the downstream of the bending part of the upper drain pipe, the pipeline of the upper drain pipe at the downstream of the communicating part of the overflow pipe is lower than the overflow pipe, so that the smoothness of the overflow water flow discharged outside in the upper drain pipe is ensured, and the situation that the overflow water flow is influenced by the bending part of the upper drain pipe and cannot be discharged outside the washing machine is avoided; meanwhile, as the upper stream of the communicating part of the overflow pipe is provided with the bending part with higher level, the overflow water path flowing into the water discharge pipe is blocked by the bending part and cannot flow back to the outer cylinder along the upper water discharge pipe, thereby ensuring the discharge direction of overflow water flow and achieving the aim of smoothly discharging overflow water of the upper water discharge washing machine.
In this embodiment, the level of any position of the overflow pipe 10 is not lower than the level of the overflow pipe 10 downstream of the position, so as to ensure that the overflow water flowing from the overflow port flows to the water outlet automatically under the action of gravity, and ensure the overflow water flow direction.
In this embodiment, there is a height difference between the overflow 17 and the highest washing water level of the tub 2, which is greater than one half of the highest washing water level. By setting a height difference between the highest washing water level of the overflow port and the highest washing water level of the outer barrel, an error allowance is provided for smooth discharge of washing water from the overflow port, and false start of overflow discharge is avoided. In the embodiment, the highest washing water level is the difference between the liquid level of the washing water in the outer cylinder and the lowest position of the outer cylinder when the drum washing machine executes a washing program with the highest water level and water feeding is finished.
In this embodiment, the overflow pipe 10 is provided with a one-way valve, and the direction of water flow in the pipeline is limited to flow only from the communicating end of the outer cylinder 2 to the communicating end of the upper drain pipe 8 (not shown in the drawings). The one-way valve is arranged on the overflow pipe, so that the water flow direction in the overflow pipe is unique, and the condition that the water drainage pressure in the drain pipe is overlarge to cause the water to flow back to the outer barrel from the overflow pipe is avoided.
In the embodiment, the overflow port 17 is arranged at one side of the wall of the outer cylinder 2, and the overflow port 17 is arranged at the center height of the outer cylinder 2; preferably, the overflow 17 is positioned in the same horizontal plane as the bottom center of the outer cylinder 2. The overflow port is arranged at the center height of the outer cylinder, so that the overflow port is arranged at the outermost side of the outer cylinder and at the farthest end away from the center of the outer cylinder horizontally, the overflow pipe is arranged at the overflow port conveniently, and the interference between the trend of the overflow pipe and the outer cylinder is reduced; meanwhile, the overflow port is arranged at the center height of the outer cylinder, so that the horizontal cross section of the outer cylinder where the overflow port is arranged is the maximum value of all horizontal cross sections of the outer cylinder, the cross section area of the outer cylinder corresponding to the overflow port is the maximum, the flow velocity of water in the outer cylinder is further slowed down, and the smoothness of overflow water flow output is improved.
In the embodiment, the first end of the upper drain pipe 8 is communicated with the water outlet 20 of the outer cylinder 2, the second end of the upper drain pipe 8 is positioned at the water outlet outside the washing machine, and the upper drain pipe 8 is provided with a drain pump 9 for providing power for drain water flow; extending gradually upwards or horizontally from the first end towards the drain pump 9, so that the level of the portion of the upper drain pipe 8 at any position is not higher than the level of any downstream pipe position. Through the arrangement, water flow in the water discharge pipe of the washing machine automatically flows from the water discharge port end to the water discharge pump under the action of gravity, and power flowing to the water discharge pipe and the external communication end is provided under the action of the water discharge pump, so that the smoothness of water flow of the water discharge is improved, and the occurrence of water flow accumulation in the water discharge pipe is effectively avoided.
In this embodiment, as shown in fig. 3, the overflow pipe 10 is horizontally arranged, one end of which is communicated with the overflow port 17, and the other end of which is communicated with the middle part of the second connecting part 13 of the upper drain pipe 8; alternatively, as shown in fig. 4, at least a portion of the overflow pipe 10 is provided to extend vertically downward, with one end communicating with the overflow 17 and the other end communicating with the second connection portion 13 of the upper drain pipe 8 near the lower end.
Example III
The present embodiment is based on the first or second embodiment, and further includes the following technical solutions: as shown in fig. 1, 5 to 7, the overflow port 17 of the outer tub 2 is provided with a leakage preventing structure to reduce the outflow of the washing water from the outer tub 2 due to the adhesion of the washing water to the outer tub 2 when the outer tub 2 rotates, so that the washing water in the outer tub 2 does not outflow from the overflow port 17 when the washing machine executes the washing program, and the occurrence of the situation that the washing program cannot be executed normally is avoided.
As shown in fig. 5 to 7, in this embodiment, the leakage preventing structure includes at least two water blocking ribs 19 arranged at intervals along the axis at the overflow port 17, and adjacent water blocking ribs 19 are arranged in a staggered manner along the axis direction of the overflow port 17 to form a tortuous overflow flow channel. Through the arrangement, the overflow port is provided with the tortuous flow passage, so that the occurrence probability of outflow of washing water from the overflow port during normal washing of the washing machine is reduced.
In this embodiment, as shown in fig. 5, the lower end of the first water blocking rib 15 near the inner side of the outer cylinder 2 is hermetically connected with the inner wall of the overflow gap 17, and a gap is arranged between the upper end and the inner wall of the overflow gap 17; the upper end of the second water retaining rib 16 far away from one side of the inner part of the outer barrel 2 is in sealing connection with the inner wall of the overflow port 17, and a gap is arranged between the lower end and the inner wall of the overflow port 17; and the upper end level of the first water blocking rib 15 is lower than the lower end level of the second water blocking rib 16. Therefore, the staggered ribs are formed at the overflow port, so that the flow passage at the overflow port forms a tortuous flow passage, and the aim of reducing the outflow of washing water from the overflow port during normal washing of the washing machine is fulfilled.
Meanwhile, as shown in fig. 6, in order to improve the effect, a plurality of water blocking ribs can be further arranged between the first water blocking rib 15 and the second water blocking rib 16, each water blocking rib extends along the direction perpendicular to the axis of the water overflow port 17, one end of each water blocking rib is in sealing contact with the inner wall of the water overflow port 17, and the other end of each water blocking rib is in clearance arrangement with the inner wall of the water overflow port 17, so that overflow water flow smoothly passes through the water blocking ribs when the water level in the outer cylinder 2 is higher than the water overflow port 17, and the situation that oscillating water flow generated in the washing process passes through the water overflow port 17 when the water level in the outer cylinder 2 is lower than the water overflow port 17 is avoided.
As shown in fig. 7, in this embodiment, the overflow port 17 is provided with a joint 14 that is communicated with the overflow pipe 10, the interior of the joint 14 is hollow, the hollow portion forms a flow passage that gradually slopes downward toward the communicating end inside the outer cylinder 2, one end of the flow passage is respectively communicated with the interior of the outer cylinder 2 through the overflow port 17, and the other end is communicated with the upper drain pipe 8 downstream of the drain pump 9 through the overflow pipe 10. Through the structure that the overflow port is gradually downwards inclined from the external phase internal direction of the outer barrel, the washing water in the outer barrel flows into the overflow port under the action of vibration and then flows back into the outer barrel under the action of gravity, so that the washing water in the outer barrel is prevented from being discharged from the overflow port in the washing process, and the aim of normally executing a washing program of the drum washing machine after the overflow port is additionally arranged is fulfilled.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (11)
1. An overflow structure of a lower drainage drum washing machine, comprising: the bottom of the outer cylinder is provided with a water outlet which is communicated with a lower drain pipe provided with a drain valve; the method is characterized in that: the outer barrel is provided with an overflow port, the overflow port is higher than the highest washing water level of the outer barrel, the overflow port is communicated with the lower drain pipe through an overflow pipe, and the communication part is positioned at the downstream of the drain valve;
the overflow port of the outer cylinder is provided with a leakage-proof structure so as to reduce the washing water from flowing out of the outer cylinder by adhering to the wall when the inner cylinder rotates;
the anti-leakage structure comprises at least two water retaining ribs which are arranged at the overflow port along the axis at intervals, and adjacent water retaining ribs are arranged in a staggered manner in the axis direction of the overflow port so as to form a tortuous overflow flow passage;
the lower end of the first water retaining rib close to one side of the inner part of the outer cylinder is in sealing connection with the inner wall of the overflow port, and a gap is arranged between the upper end of the first water retaining rib and the inner wall of the overflow port; the upper end of the second water retaining rib far away from one side of the inner part of the outer cylinder is hermetically connected with the inner wall of the overflow port, and a gap is arranged between the lower end of the second water retaining rib and the inner wall of the overflow port; the horizontal height of the upper end of the first water blocking rib is higher than that of the lower end of the second water blocking rib;
the overflow port is provided with a connector communicated with the overflow pipe, the connector is hollow, the hollow part forms a runner which gradually inclines downwards towards the communication end inside the outer cylinder, one end of the runner is respectively communicated with the inside of the outer cylinder through the overflow port, and the other end of the runner is communicated with a lower drain pipe at the downstream of the drain valve through the overflow pipe.
2. The overflow structure of the lower drainage drum type washing machine as claimed in claim 1, wherein: there is a height difference between the overflow port and the highest washing water level of the outer cylinder.
3. The overflow structure of the lower drainage drum type washing machine as claimed in claim 2, wherein: the height difference is not less than 5mm.
4. The overflow structure of the lower drainage drum type washing machine as claimed in claim 1, wherein: the highest washing water level is the difference between the water level of the washing water in the outer cylinder and the lowest position of the outer cylinder when the drum washing machine executes the washing program with the highest water level and water feeding is finished.
5. The overflow structure of the lower drainage drum type washing machine as claimed in claim 1, wherein: the level of the overflow pipe at any position is not lower than the level of the overflow pipe at the position downstream.
6. The overflow structure of the lower drainage drum type washing machine as claimed in any one of claims 1 to 5, wherein: the overflow pipe is provided with a one-way valve, and the water flow direction in the pipeline is limited to flow only from the communicating end of the outer cylinder to the communicating end of the upper drain pipe.
7. The overflow structure of the lower drainage drum type washing machine as claimed in any one of claims 1 to 5, wherein: the overflow port is arranged on one side of the wall of the outer cylinder, and the overflow port is arranged at the center height of the outer cylinder.
8. The overflow structure of the lower drainage drum type washing machine as claimed in claim 7, wherein: the overflow port and the bottom center of the outer cylinder are positioned in the same horizontal plane.
9. The overflow structure of the lower drainage drum type washing machine as claimed in any one of claims 1 to 5, wherein: one end of the overflow pipe is communicated with the overflow port, and the other end of the overflow pipe is communicated with a pipeline part of the lower drain pipe at the downstream of the drain valve; or one end of the overflow pipe is communicated with the overflow port, and the other end of the overflow pipe is communicated with the outlet end of the drain valve, so that overflow water flows through the overflow pipe and the outlet of the drain valve to be communicated with the lower drain pipe.
10. The overflow structure of the lower drainage drum type washing machine as claimed in any one of claims 1 to 5, wherein: the lower drain pipe is arranged at the lower part of the outer barrel, and any part of the lower drain pipe is lower than the height of the water outlet at the bottom of the outer barrel.
11. The overflow structure of the lower drainage drum type washing machine as claimed in claim 10, wherein: the first end of the lower drain pipe is communicated with the outer cylinder water outlet, the second end of the lower drain pipe is positioned at a water draining position outside the washing machine, and the lower drain pipe gradually extends downwards or horizontally from the first end to the second end, so that the horizontal height of any position of the lower drain pipe is not higher than the horizontal height of any downstream pipeline position.
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Citations (1)
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| CN86206591U (en) * | 1986-12-17 | 1987-11-11 | 上海电器塑料厂 | Water outflow control device for washing machine with upper drain |
| JP2000153093A (en) * | 1998-11-24 | 2000-06-06 | Sanyo Electric Co Ltd | Washing machine |
| JP4033872B2 (en) * | 2005-05-27 | 2008-01-16 | 三洋電機株式会社 | Drum washing machine |
| JP4607774B2 (en) * | 2006-01-20 | 2011-01-05 | 株式会社東芝 | Washing and drying machine |
| JP4852505B2 (en) * | 2007-09-25 | 2012-01-11 | 日立アプライアンス株式会社 | Dryer and washing dryer |
| CN201121267Y (en) * | 2007-10-31 | 2008-09-24 | 宁波新乐电器有限公司 | Washing barrel water spilling structure of double-drum washing machine |
| CN104805653B (en) * | 2015-04-28 | 2018-05-25 | 无锡小天鹅股份有限公司 | Washing machine |
| CN107385802B (en) * | 2017-07-06 | 2021-07-27 | 青岛胶南海尔洗衣机有限公司 | Air pressure balancing device of washing machine and washing machine with same |
| CN107663743B (en) * | 2017-10-31 | 2021-07-23 | 青岛胶南海尔洗衣机有限公司 | Outer barrel of washing machine and washing machine |
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| CN1572953A (en) * | 2003-06-09 | 2005-02-02 | Lg电子株式会社 | Mono-tub drum-type washing machine and method for controlling the same |
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Effective date of registration: 20230322 Address after: 400026 No.303, Block E, No.1 Gangcheng South Road, Jiangbei District, Chongqing Applicant after: Chongqing Haier Front-loading Washing Machine Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER DRUM WASHING MACHINE Co.,Ltd. |
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