CN109695123B

CN109695123B - Drum washing machine

Info

Publication number: CN109695123B
Application number: CN201910021033.7A
Authority: CN
Inventors: 席磊; 徐文根; 卞本羊; 张文杰
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2021-07-06
Anticipated expiration: 2039-01-09
Also published as: CN109695123A

Abstract

The present invention relates to a drum washing machine. The drum washing machine comprises an outer drum, an inner drum, a cover body, a first sealing strip, a machine door and a drying pipeline; the outer cylinder is provided with an accommodating cavity and an opening which are communicated; the inner cylinder is positioned in the accommodating cavity and is coaxial with the outer cylinder; the cover body is connected with the outer barrel to plug the opening, and is provided with a mounting hole and a through hole communicated with the opening, and the mounting hole is communicated with the through hole; the machine door is rotationally connected to the cover body, and the machine door cover is arranged on the cover body to plug the through hole; the first sealing strip is arranged on the machine door and is abutted against the cover body; the drying pipeline is arranged in the outer barrel. According to the drum washing machine, the mode that the machine door is installed on the front door plate is eliminated, the machine door and the cover body are assembled together, and when the situation of large vibration occurs in the operation process of the drum washing machine, the machine door and the front door plate are spaced enough, so that the phenomenon that the vibration on the machine door is directly transmitted to the front door plate or collides with the front door plate to interfere with friction is avoided.

Description

Drum washing machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a drum washing machine.

Background

At the front of drum type washing machine, be equipped with round door between urceolus and the preceding door plant and seal the structure, its main function is: isolating the vibration of the outer cylinder component from being transmitted to the box body; the door seal structure is respectively sealed with the front end of the outer cylinder and the machine door, and water is prevented from leaking out of the cylinder in the washing and dewatering processes; the outer wall of the door seal structure is connected with the drying channel, so that drying hot air can enter the drum from the door seal to dry clothes.

The traditional door seal is made of materials with better tensile property and elasticity, such as rubber, so that the vibration of a drum component is prevented from being transmitted to a front door panel or a box body in the operation process of the washing machine. Due to the low hardness of the rubber, the door seal and the front end of the outer cylinder can be sealed by the tensioning force of the spring, and the door seal and the machine door are compressed and sealed by the edge of the door seal lip; and a drying air outlet is formed in the peripheral wall of the door seal, and the drying channel is connected with the drying air outlet, so that the drying air supply effect is realized.

However, in order to isolate the vibration of the door seal, the whole length of the door seal is large, so that a distance is left between the cylinder assembly and the front door plate for vibration stretching, foreign matters generated by washing clothes are easily left in the stretching process of the door seal between the cylinder assembly and the front door plate, namely the door seal has the problems of easy dirt storage and dirt collection and difficult cleaning, and the washing sanitation is influenced. Because the door seals the material characteristic, and directly make the stoving air outlet on the door seals the perisporium and make it be connected with stoving passageway, after using functions such as stoving for a long time, make the door seal appear material nature easily and change phenomenons such as change and discolour. In addition, most of the detergents have certain degree of acid-base corrosivity, and high-temperature washing and high-temperature drying cause door seal pulverization or softening and easy damage; on the other hand, when the washing machine vibrates greatly, the door seal is difficult to avoid rubbing with other parts, and after long-time use, the door seal is easy to break and wear through. After the door seal is pulverized, damaged or worn out, the sealing effect of the door seal is inevitably influenced, and then the phenomena of water leakage and the like of the roller washing machine occur, so that the service life of the roller washing machine is shorter.

Disclosure of Invention

Accordingly, it is necessary to provide a drum washing machine which can solve the problems of the drum washing machine that the door seal is easy to store dirt and is difficult to clean, the door seal material is easy to change in property and discolor, and the service life is short.

A drum washing machine comprising:

the outer cylinder is provided with an accommodating cavity and an opening which are communicated;

the inner cylinder is positioned in the accommodating cavity and is coaxial with the outer cylinder;

the cover body is connected with the outer barrel to seal the opening, a mounting hole and a through hole communicated with the opening are formed in the cover body, and the mounting hole is communicated with the through hole;

the machine door is rotationally connected to the cover body and is arranged on the cover body in a covering manner so as to seal the through hole; and

the drying pipeline, the drying pipeline set up in the urceolus, just the drying pipeline wear to locate in the mounting hole and with the lid is connected, the drying pipeline is located the tip orientation in the lid holds the chamber setting.

In the drum washing machine, the cover body is connected with the outer barrel and covers the outer barrel to seal the opening, the drying pipeline is arranged on the outer barrel, penetrates through the mounting hole and is connected with the cover body, so that drying hot air enters the through hole of the cover body through the drying pipeline, the end part of the drying pipeline positioned in the cover body is arranged towards the accommodating cavity, the through hole is communicated with the opening, and the opening is communicated with the accommodating cavity, so that the drying hot air entering the cover body directly enters the accommodating cavity to dry clothes in the inner barrel; because the structure of the drum washing machine can realize the sealing effect without arranging a door seal, the drying function of the drum washing machine without a door seal piece is realized, and the drying pipeline is connected with the cover body, the problems that the door seal of the drum washing machine is easy to store dirt and is difficult to clean, the door seal material is easy to change and change color, and the problem that the service life of the drum washing machine is short are solved; according to the drum washing machine, the mode that the machine door is installed on the front door plate is eliminated, the machine door and the cover body are assembled together, when the situation of large vibration occurs in the operation process of the drum washing machine, the machine door and the cover body vibrate together, meanwhile, enough space is reserved between the machine door and the front door plate, and the phenomenon that the vibration on the machine door is directly transmitted to the front door plate or collides with the front door plate to interfere with friction is avoided.

In one embodiment, the drum washing machine further comprises a first sealing strip, the first sealing strip is arranged on the machine door, and the first sealing strip abuts against the cover body; the first sealing strip is arranged on the machine door and abuts against the cover body, so that the machine door is reliably covered on the cover body, and the water in the inner barrel or the outer barrel is prevented from leaking out through the through hole and leaking; get into the lid in the stoving steam directly get into and hold the intracavity, on the stoving steam does not directly blow the first sealing strip to the quick-witted door, avoid first sealing strip to receive the easy ageing problem after the stoving steam effect.

In one embodiment, the first sealing strip abuts against one side of the cover body, which is far away from the outer barrel, so that the distance between the end part of the drying pipeline, which is located in the cover body, and the first sealing strip is far away, and the problem that the first sealing strip is easily aged due to the action of hot air is better avoided.

In one embodiment, a stopping flange is arranged on one side of the cover body, which is away from the outer barrel, the first sealing strip abuts against the stopping flange, so that the contact area between the first sealing strip and the cover body is larger, and the cover body and the machine door are better sealed through the first sealing strip.

In one embodiment, the first sealing strip comprises a sealing strip main body and a fixing part formed by extending the sealing strip main body to the machine door; the machine door is provided with a clamping groove, the fixing part is positioned in the clamping groove and connected with the machine door, and the sealing strip main body is abutted against the stop flange, so that the first sealing strip is better arranged on the machine door and is sealed with the cover body in an abutting mode.

In one embodiment, the drum washing machine further comprises a second sealing strip, the second sealing strip is sleeved on the drying pipeline and abuts against the cover body, so that the drying pipeline is connected to the cover body in a penetrating manner, the air tightness of the drum washing machine in the drying process is ensured, and the problem of drying hot air overflow is prevented; the cover body is detachably connected with the drying pipeline so as to conveniently detach and replace the second sealing strip, and the use convenience of the drum washing machine is improved.

In one embodiment, the cover body is detachably connected with the outer barrel so as to clean or replace the cover body, and the use convenience of the drum washing machine is improved.

In one embodiment, the drum washing machine further includes a locking screw, the cover body is provided with a first threaded hole, the outer drum is provided with a second threaded hole, and the locking screw is respectively inserted into the first threaded hole and the second threaded hole to enable the cover body and the outer drum to be tightly connected.

In one embodiment, the drum washing machine further comprises a sealing ring, the sealing ring is located between the cover body and the outer drum, and the sealing ring is respectively abutted against the cover body and the outer drum so as to increase the sealing performance of the joint of the outer drum and the cover body.

In one embodiment, an annular groove is formed in the periphery of the outer cylinder, which is adjacent to the cover body, and the sealing ring is located in the annular groove and is abutted against the outer cylinder, so that the sealing ring is well positioned and mounted on the outer cylinder, and the situation that the sealing ring is displaced is avoided.

Drawings

FIG. 1 is a schematic view of a drum washing machine according to an embodiment;

FIG. 2 is a sectional view taken along line A-A of the drum washing machine shown in FIG. 1;

FIG. 3 is an enlarged view of a portion of the drum washing machine shown in FIG. 2;

FIG. 4 is a schematic view of the cover of the drum washing machine shown in FIG. 2;

FIG. 5 is a partial schematic view of the drum washing machine shown in FIG. 1;

FIG. 6 is a sectional view taken along line B-B of the drum washing machine shown in FIG. 5;

FIG. 7 is a partially enlarged view of the drum washing machine shown in FIG. 6;

FIG. 8 is a partial schematic view of the drum washing machine of FIG. 1 from another perspective;

FIG. 9 is a schematic view of the drying duct and the drying mechanism of the drum washing machine shown in FIG. 8;

fig. 10 is a partially enlarged view of the drying duct shown in fig. 9.

Detailed Description

To facilitate an understanding of the present invention, a drum washing machine will be described more fully with reference to the accompanying drawings. Preferred embodiments of the drum washing machine are shown in the drawings. However, drum washing machines may be embodied in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the drum washing machine is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, the drum washing machine comprises an outer drum, an inner drum, a cover body, a machine door and a drying pipeline; the outer cylinder is provided with an accommodating cavity and an opening which are communicated; the inner cylinder is positioned in the accommodating cavity and is coaxial with the outer cylinder; the cover body is connected with the outer barrel to seal the opening, a mounting hole and a through hole communicated with the opening are formed in the cover body, and the mounting hole is communicated with the through hole; the machine door is rotationally connected to the cover body, and the machine door cover is arranged on the cover body to seal the through hole; the drying pipeline is arranged in the outer barrel, the drying pipeline penetrates through the mounting hole and is connected with the cover body, and the end part of the drying pipeline, which is located in the cover body, faces the accommodating cavity.

As shown in fig. 1 to 3, a drum washing machine 100 of an embodiment includes an outer tub 110, an inner tub 120, a cover 130, a door 150, and a drying duct 160. In the present embodiment, the outer cylinder is disposed on the machine body 170, and a preset distance exists between the outer cylinder 110 and the front door panel 172 of the machine body. When the drum washing machine operates, the outer tub vibrates in a direction approaching or departing from the front door panel. As shown in fig. 3, the outer cylinder 110 is formed with a receiving chamber 111 and an opening 112 communicating with each other. The inner cylinder is located in the containing cavity and is coaxial with the outer cylinder. The inner cylinder rotates relative to the outer cylinder, and the outer cylinder vibrates in the axial direction relative to the front door panel. The cover body is connected with the outer cylinder to plug the opening. In this embodiment, the inner cylinder is disposed coaxially with the outer cylinder, and the inner cylinder is located within the outer cylinder. The opening is opened at the end of the outer cylinder. The cover body and the outer cylinder are coaxially arranged. Furthermore, the cover body is made of metal materials, so that the cover body is guaranteed to have enough structural strength and high-temperature resistance and corrosion resistance, and the reliability of the drum washing machine under long-time use conditions is guaranteed.

As shown in fig. 3 and 4, in one embodiment, the cover 130 has a mounting hole 132 and a through hole 134 communicating with the opening 112, and the mounting hole communicates with the through hole. The door 150 is rotatably connected to the cover 130, and the door is covered on the cover to seal the through hole. When the machine door is closed on the cover body, namely when the machine door is arranged on the cover body, the machine door is tightly pressed and connected with the cover body under the action of the door lock.

Referring to fig. 2 again, in one embodiment, the drying duct 160 is disposed in the outer tub 110, and referring to fig. 3, and the drying duct is inserted into the mounting hole 132 and connected to the cover 130. In this embodiment, the drying duct is mostly located outside the outer tub 110 and connected to the drying mechanism 101. The drying mechanism is used for generating drying hot air and is connected with one end of the drying pipeline, and the end part of the drying pipeline, far away from the drying mechanism, is positioned in the cover body.

As shown in fig. 3, the end of the drying duct 160 located in the cover 130 is disposed toward the accommodating cavity 111, so that the drying hot air entering the cover through the drying duct directly enters the accommodating cavity to dry the clothes in the inner tub. In the present embodiment, the mounting hole is opened in the peripheral wall of the lid body. The machine door is of a circular door body structure, and the machine door and the cover body are coaxially arranged.

As shown in fig. 3, in order to facilitate the installation of the drying duct on the cover, the drying duct 160 further includes a first duct 161 and a second duct 162. The first pipeline is located outside the outer drum 110, one end of the first pipeline is connected with the drying mechanism 101, and the other end of the first pipeline is detachably connected with the second pipeline. The second pipe is inserted into the mounting hole 132 and connected to the cover. The second pipeline that is located the through-hole sets up towards holding the chamber, makes and directly gets into through the hot-blast entering of stoving that the stoving pipeline got into in the lid and holds the intracavity to dry the clothing in the inner tube. Because the size of first pipeline is longer than the size of second pipeline, and first pipeline and second pipeline all are the form of buckling, not only be convenient for with drying duct mounting on the lid, also be convenient for drying duct's manufacturing.

To facilitate installation of the second conduit through the mounting hole, in one embodiment, the second conduit 162 includes a conduit body 1621 and a bend 1623. The pipeline body can be dismantled with first pipeline and be connected, and the pipeline body wears to locate in the mounting hole and is connected with the lid. The kink is connected in the pipeline body that is located the lid, and the kink is buckled towards holding the chamber, makes and directly gets into through the hot-blast entering of stoving that the stoving pipeline got into in the lid and holds the intracavity to dry the clothing in the inner tube. Furthermore, the extending direction of the pipeline body is linear, so that the pipeline body is easy to install and penetrate in the installation hole.

As shown in fig. 3 and 9, the drying duct 160 further includes a connection sleeve 163, and two ends of the connection sleeve are respectively sleeved on the first duct 161 and the second duct 162, so that the first duct and the second duct are detachably connected. Furthermore, two ends of the connection sleeve 163 are respectively provided with a first positioning slot 1631 and a second positioning slot 1632. The connecting sleeve is provided with a vent 1633 respectively communicated with the first positioning groove and the second positioning groove. The first pipeline is positioned in the first positioning groove and is detachably connected with the connecting sleeve. The second pipeline is located the second constant head tank and can dismantle with the spread groove and be connected, makes first pipeline and second pipeline can dismantle and be connected. In order to improve the sealing performance of the connection between the first pipe and the connection sleeve, the drying pipe 160 further includes a first sealing ring 164, and the first sealing ring is sleeved on the first pipe and elastically abuts against the connection sleeve, so that the first pipe is tightly connected to the connection sleeve. Further, the drying duct 160 further includes a second sealing ring 165, the second sealing ring is sleeved on the second duct and elastically abuts against the connection sleeve, so that the second duct is tightly connected with the connection sleeve.

In one embodiment, the cover body and the second pipeline are both made of metal pieces, and the second pipeline and the cover body are welded together, so that the second pipeline and the cover body are firmly connected. It will be appreciated that the materials of the first and second conduits may be the same or different. In order to improve the connection tightness of the second pipeline and the cover body and reduce the weight of the drying pipeline, the first pipeline and the second pipeline are made of different materials respectively. In one embodiment, the first pipeline is a plastic part and has high temperature resistance, so that the drying pipeline is light in weight and the connection tightness between the first pipeline and the connecting sleeve can be ensured.

Foretell drum type washing machine, the lid is connected and is covered on locating the urceolus with the urceolus, with the shutoff opening, because the stoving pipeline sets up on the urceolus and wears to locate in the mounting hole and be connected with the lid, make stoving steam pass through in the through-hole of stoving pipeline entering lid, because the tip orientation that is located the stoving pipeline in the lid holds the chamber setting, and through-hole and opening intercommunication, the opening with hold the chamber intercommunication, make and get into the lid in the stoving steam directly get into and hold the intracavity, in order to dry the clothing in the inner tube. Because foretell drum type washing machine's structure need not to set up the door and seals and can realize sealed effect, realizes the stoving function under the drum type washing machine does not have door strip of paper used for sealing spare, and the stoving pipeline is connected with the lid, has solved drum type washing machine and has had the door to seal the problem that dirty dirt is hidden easily and is difficult to the clearance, door seal material nature changes easily and discolours, the lower problem of drum type washing machine's life can not appear yet. According to the drum washing machine, the mode that the machine door is installed on the front door plate is eliminated, the machine door and the cover body are assembled together, when the situation of large vibration occurs in the operation process of the drum washing machine, the machine door and the cover body vibrate together, meanwhile, enough space is reserved between the machine door and the front door plate, and the phenomenon that the vibration on the machine door is directly transmitted to the front door plate or collides with the front door plate to interfere with friction is avoided.

Further, the drum washing machine 10 further includes a first sealing strip 140, the first sealing strip 140 is disposed on the door 150, and the first sealing strip abuts against the cover. Because the machine door is provided with the first sealing strip which is abutted against the cover body, the machine door is reliably covered on the cover body, and the water in the inner barrel or the outer barrel is prevented from leaking out through the through hole to cause water leakage. Get into the lid in the stoving steam directly get into and hold the intracavity, on the stoving steam does not directly blow the first sealing strip to the quick-witted door, avoid first sealing strip to receive the easy ageing problem after the stoving steam effect. Further, there is the certain distance in first sealing strip and the tip that is located the stoving pipeline of lid, and first sealing strip is kept away from and is held the chamber setting, has avoided the hot-blast direct action of stoving to lead to the ageing problem of first sealing strip on first sealing strip. In this embodiment, the first sealing strip is an annular sealing strip, and the first sealing strip is sleeved on the door and is coaxially arranged with the door.

In order to avoid the problem that the first sealing strip is easily aged by the action of hot air, in one embodiment, the first sealing strip 140 abuts against one side of the cover 130 away from the outer barrel 110, so that the distance between the end part of the drying pipeline located in the cover and the first sealing strip is relatively long, and the problem that the first sealing strip is easily aged by the action of hot air is better avoided.

As shown in fig. 3 and 4, in order to better seal between the cover and the door through the first sealing strip, in one embodiment, a stopping flange 133 is disposed on a side of the cover 130 away from the outer cylinder 110, and the first sealing strip 140 abuts against the stopping flange, so that a contact area between the first sealing strip and the cover is larger, and the cover and the door are better sealed through the first sealing strip. In this embodiment, the stop flange is disposed around the periphery of the cover, and the extending track of the stop flange is circular.

As shown in fig. 3, in one embodiment, the first sealing strip 140 includes a sealing strip body 142 and a fixing portion 144 extending from the sealing strip body to the door 150. A slot 152 is formed on the door 150, and the fixing portion 144 is located in the slot and connected to the door. The sealing strip main body 142 abuts against the stop flange 132, so that the first sealing strip is better arranged on the machine door and abuts against and seals the cover body. Furthermore, the fixed part is glued on the machine door, so that the fixed part is firmly connected with the machine door. In this embodiment, the sealing strip main body and the fixing portion are integrally formed, so that the first sealing strip is more compact in structure and lower in manufacturing cost. In other embodiments, the sealing strip body and the fixing portion can be formed separately and connected together by gluing.

Further, the door 150 includes a door main body 150a and a ring-shaped fixing frame 150b connected to an end of the door main body. The clamping groove is formed in the machine door main body, and the fixing portion is fixedly connected to the machine door. Furthermore, the fixing part is clamped between the machine door main body and the annular fixing frame, so that the fixing part and the machine door are connected more firmly. Further, a clamping flange 151b is formed at an end portion of the ring-shaped fixing frame 150b adjacent to the stopper flange, the cross section of the clamping flange is bent, and the fixing portion is clamped between the door main body and an inner wall of the clamping flange, so that the fixing portion is firmly connected to the door. Furthermore, the fixing portion 144 is provided with a connecting groove 1441, and the clamping flange is partially located in the connecting groove and connected to the fixing portion, so that the fixing portion and the clamping flange are more firmly connected.

As shown in fig. 8, in one embodiment, the drum washing machine further includes a second sealing strip (not shown), the second sealing strip is sleeved on the drying duct 160, and the second sealing strip abuts against the cover 130. When the drying pipeline is connected to the cover body in a penetrating mode, the second sealing strip is tightly abutted to the drying pipeline and the cover body, air tightness of the drum washing machine in the drying process is guaranteed, and the problem of drying hot air overflow is solved. In this embodiment, the drying duct is detachably connected to the cover. The second sealing strip is an annular sealing strip.

As shown in fig. 9 and 10, further, the drum washing machine further includes a fastening screw (not shown). The cover 130 is provided with a screw hole 136. The drying pipeline 160 is provided with a connecting hole 166, and the fastening screws respectively penetrate through the connecting hole and the screw holes, so that the drying pipeline and the cover body can be detachably connected, and the second sealing strip is clamped between the cover body and the drying pipeline. As shown in fig. 10, furthermore, a positioning slot 167 is further disposed on the drying duct 160, and the second sealing strip is located in the positioning slot 167, so that the second sealing strip is better sleeved on the drying duct, and when the drying duct is firmly connected to the cover body, the second sealing strip elastically abuts against the positioning slot and the inner wall of the cover body, thereby further improving the sealing performance of the connection between the drying duct and the cover body.

As shown in fig. 4, a mounting boss 135 is formed on the peripheral wall of the cover 130, and a screw hole 136 is formed on the mounting boss, so that the drying duct can be better fixed to the cover by a fixing screw. In this embodiment, the number of the mounting bosses is two, and the mounting hole is located between the two mounting bosses. Specifically, in this embodiment, the screw hole is formed on the planar structure of the mounting boss 135, so that the fixing screw can be better inserted and positioned on the mounting boss. Furthermore, a positioning groove (not shown) is formed on the inner wall of the cover body on which the mounting boss is formed, so that the drying pipeline is tightly connected to the mounting boss, and the second sealing strip is tightly abutted to the cover body and the mounting boss, thereby further improving the sealing performance of the joint of the drying pipeline and the mounting boss.

It can be understood that, in other embodiments, the drying duct and the cover body can be detachably connected by a snap connection. Of course, the connection between the drying duct and the cover body may not be detachable, and the second sealing strip may be omitted. In order to firmly connect the drying pipeline with the cover body, in one embodiment, the drying pipeline is welded with the cover body, so that the drying pipeline is firmly connected with the cover body, and meanwhile, the tightness of the connection of the drying pipeline and the cover body is ensured.

As shown in fig. 5 to 7, in order to improve the convenience of the drum washing machine, in one embodiment, the cover 130 is detachably connected to the outer tub 110, so as to perform a cleaning or replacing operation on the cover, thereby improving the convenience of the drum washing machine. As shown in fig. 7, the drum washing machine 100 further includes a locking screw 190, the cover 130 is provided with a first threaded hole 135, the outer drum 110 is provided with a second threaded hole 113, and the locking screw is respectively inserted into the first threaded hole and the second threaded hole to fasten the cover and the outer drum.

In other embodiments, the cover and the outer cylinder are not limited to be connected by locking screw fixation. In one embodiment, the cover body and the outer barrel can be connected through a buckle. Specifically, the cover body is provided with a plug buckle, the outer barrel is provided with a plug groove, and the plug buckle is clamped in the plug groove, so that the cover body is reliably connected with the outer barrel.

As shown in fig. 7, in order to make the sealing rings abut against the cover and the outer tub better, in one embodiment, the drum washing machine 100 further includes a sealing ring 210, which is located between the cover 130 and the outer tub 110 and abuts against the cover and the outer tub respectively, so as to increase the sealing performance at the joint of the outer tub and the cover. In this embodiment, the sealing ring is annular, and the cross section of the sealing ring is circular, so that the sealing ring can be respectively and well abutted against the cover body and the outer cylinder.

As shown in fig. 7, in order to better position and mount the sealing ring on the outer cylinder, in one embodiment, an annular groove 114 is formed on the periphery of the outer cylinder 110 adjacent to the cover 130, and the sealing ring 210 is located in the annular groove and abuts against the outer cylinder, so that the sealing ring is better positioned and mounted on the outer cylinder without displacement of the sealing ring. Furthermore, the cover 130 is provided with a protrusion 131, which abuts against the sealing ring 210 to make the sealing ring extruded and deformed by the protrusion, so that the sealing ring elastically abuts against the protrusion and the outer cylinder, and the sealing ring better abuts against the protrusion and the outer cylinder.

The drum washing machine has the following innovation points:

1) a door seal is cancelled, a cover body is added, and the cover body is connected with the outer barrel through a locking screw; adding a first sealing strip to ensure the sealing effect of the connection between the cover body and the machine door; a drying air outlet is added on the cover body to realize the function of guiding hot air to enter the cylinder to dry clothes.

2) When the outer cylinder and the cover body are rigidly connected by using a screw, the sealing ring is added to ensure the sealing performance of the connection between the outer cylinder and the cover body. A first sealing strip is added on the machine door, and after the machine door is closed, the machine door is compressed and sealed with the cover body under the action of the door lock; a drying air outlet is added on the cover body to realize the function of guiding hot air to enter the cylinder for drying clothes, and simultaneously realize the drying function under the condition without a door seal; and a second sealing strip is newly added and is locked by using a screw to compress the sealing strip and the cover body, so that good drying air tightness is ensured.

3) The mode that the machine door is installed on the front door plate is cancelled, and the machine door and the cover body are assembled together, namely the machine door is assembled on the barrel assembly. When the machine has larger vibration in the running process, the machine door and the barrel assembly vibrate together, and meanwhile, a sufficient space is reserved between the machine door and the front door plate, so that the phenomenon that the vibration is transmitted to the front door plate through the machine door or the machine door collides with the front door plate to interfere is avoided. The sealing ring and the first sealing strip are newly added, so that the drum washing machine is ensured to have good sealing performance in the operation process, and the phenomena of water leakage and the like are prevented. The drying pipeline is connected on the cover body in a penetrating mode to achieve the drying function under the door-free sealing strip piece, meanwhile, the second sealing strip is used for guaranteeing the air tightness in the drying process, and the phenomena of hot air escape and the like are prevented.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A drum washing machine characterized by comprising:

the cover body is connected with the outer barrel so as to plug the opening on the outer barrel, a mounting hole and a through hole communicated with the opening are formed in the cover body, and the mounting hole is communicated with the through hole;

the drying pipeline is arranged in the outer barrel, penetrates through the mounting hole and is connected with the cover body, and the end part of the drying pipeline, which is positioned in the cover body, faces the accommodating cavity;

the stoving pipeline includes first pipeline and second pipeline, just first pipeline with the second pipeline all is the form of buckling, first pipeline is located the urceolus outside, just first pipeline one end is connected with stoving mechanism, the other end of first pipeline with the connection can be dismantled to the second pipeline, the second pipeline wears to locate in the mounting hole and with the lid is connected.

2. A drum washing machine according to claim 1, characterized by further comprising a first sealing strip, wherein the first sealing strip is arranged on the door and abuts against the cover.

3. A drum washing machine according to claim 2, characterized in that the first sealing strip abuts against a side of the cover facing away from the tub.

4. A drum washing machine according to claim 3, characterized in that the cover is provided with a stop flange on the side facing away from the tub, the first sealing strip abutting against the stop flange.

5. A drum washing machine according to claim 4, characterized in that the first sealing strip comprises a sealing strip body and a fixing part formed by extending the sealing strip body to the machine door; the machine door is provided with a clamping groove, the fixing part is located in the clamping groove and connected with the machine door, and the sealing strip main body is abutted to the stop flange.

6. A drum washing machine according to any one of claims 1 to 5, characterized by further comprising a second sealing strip, wherein the second sealing strip is sleeved on the drying duct and abuts against the cover body; the cover body is detachably connected with the drying pipeline.

7. A drum washing machine according to any one of claims 1-5, characterized in that the cover is detachably connected with the outer drum.

8. A drum washing machine according to claim 7, characterized in that the drum washing machine further comprises a locking screw, a first threaded hole is formed on the cover body, a second threaded hole is formed on the outer drum, and the locking screw is respectively inserted into the first threaded hole and the second threaded hole.

9. A drum washing machine according to claim 8, characterized by further comprising sealing rings located between the cover and the outer tub and abutting against the cover and the outer tub, respectively.

10. A drum washing machine according to claim 9, characterized in that the outer drum has an annular groove cut in its periphery adjacent to the cover, and the sealing ring is located in the annular groove and abuts against the outer drum.