Door opening and closing mechanism and clothes processing equipment

Abstract

The utility model belongs to the technical field of clothes processing equipment, and discloses a door opening and closing mechanism and clothes processing equipment. The door opening and closing mechanism is arranged between a clothes putting opening of a box body and a door body and comprises a lock, a door closer and a door body pop-up device. The lock is arranged on the box body, and the lock acts to enable a spring bolt of the door body and the lock to be switched among a contact unlocking state, a separable positioning state and a locking state. And the door closer is arranged at the rotating joint of the door body and the box body, and when the door body is located at the first preset angle, the door body is driven to rotate to a third preset angle, so that the spring bolt and the lock are converted into a contact unlocking state from a self-separation state. The door body pop-up device is arranged between the box body and the door body, and when the spring bolt and the lock are converted from a contact unlocking state to a locking state, the door body pop-up device stores energy; and when the lock tongue and the lock are converted from the locking state to the separation state, the door body popping device pops the door body to a second preset angle. The door opening and closing mechanism automatically unlocks and opens the door body, and the automation degree is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clothes processing equipment technical field especially, relates to a switch door mechanism and clothes processing equipment. BACKGROUND

[0002] The current clothes processing equipment such as washing machine, after completing clothes processing steps such as washing, the temperature and humidity in the barrel are higher, if the user does not open the door body in time, bacteria are easy to breed, and even secondary pollution can be brought to clothes.

[0003] And when taking and placing clothes, manpower is needed, and the door body is opened and closed by manual rotation, and the door body and the washing machine box are locked by pushing. The above processes all need to exert certain external force, which is not conducive to improving the convenience of operation and the automation degree of clothes processing equipment.

[0004] Therefore, a switch door mechanism and clothes processing equipment are needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] According to one aspect of the utility model, the purpose is to provide a switch door mechanism, which can automatically unlock and open the door body after the completion of clothes processing such as washing, avoid the breeding of bacteria and peculiar smell, and improve the automation degree and user experience.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The switch door mechanism is arranged between the clothes putting opening of the box body of the clothes processing equipment and the door body, the door body is rotatably arranged at the clothes putting opening and can rotate to close or open the clothes putting opening, the door body is provided with a lock tongue, and the switch door mechanism comprises:

[0008] A lock is arranged on the box body, the lock tongue and the lock have a disengaged state, a contact unlocking state, a separable positioning state and a locked state, and the lock can convert the lock tongue and the lock between the contact unlocking state, the separable positioning state and the locked state by action;

[0009] A door closer is arranged at the rotary connection between the door body and the box body, and can drive the door body to continue rotating to a third preset angle when the door body and the clothes putting opening are at a first preset angle, so that the lock tongue and the lock are converted from the disengaged state to the contact unlocking state;

[0010] The door body ejecting device is energized when the lock tongue and the lock are converted from the contact unlocking state to the locking state; the door body ejecting device releases energy and opens the door body to a second preset angle when the lock tongue and the lock are converted from the locking state to the disengaging state.

[0011] The second preset angle is greater than the first preset angle.

[0012] As a preferred scheme of the door opening and closing mechanism, the door closer comprises a cam and an energy storage assembly, the cam is coaxially arranged on the rotating shaft of the door body, the energy storage assembly is connected to the door body or the cabinet and movably abuts against the wheel surface of the cam, and the first end of the energy storage assembly can move along the wheel surface of the cam to the door opening direction or the door closing direction during the opening or closing of the door body relative to the clothes throwing opening.

[0013] As a preferred scheme of the door opening and closing mechanism, the wheel surface of the cam is provided with a circular arc part, a convex part and a concave part which are sequentially connected and smoothly transitioned.

[0014] During the opening of the door body relative to the clothes throwing opening, the first end of the energy storage assembly sequentially moves along the concave part and the convex part to the circular arc part, and the energy storage assembly accumulates energy;

[0015] During the closing of the door body relative to the clothes throwing opening, when the first end of the energy storage assembly moves along the circular arc part to the convex part, the door body is manually closed relative to the clothes throwing opening to the first preset angle.

[0016] After the door body is manually closed relative to the clothes throwing opening to the first preset angle, the energy storage assembly releases energy and drives itself to continue to act in a direction away from the convex part to reach the concave part, so that the door body is automatically closed relative to the clothes throwing opening to the third preset angle.

[0017] As a preferred scheme of the door opening and closing mechanism, the door closer further comprises a sleeve, the sleeve is movably connected between the cabinet and the rotating shaft of the door body, the energy storage assembly comprises a roller, an adapter and a first elastic element, the roller is rotatably connected to the adapter about an axis line of the roller, the roller can roll along the wheel surface of the cam, the adapter is arranged at an end opening of the sleeve close to the rotating shaft of the door body, the first elastic element is arranged between the adapter and the bottom of the sleeve, and the first elastic element can be compressed to accumulate energy or restored to release energy along the axis line of the sleeve.

[0018] As a preferred scheme of the door opening and closing mechanism provided by the utility model, the door body ejecting device comprises a second elastic element and an abutting piece, the second elastic element is arranged on one side of the door body facing the cabinet, the abutting piece is connected to the second elastic element and abuts against the cabinet in a detachable manner, or,

[0019] The second elastic element is arranged on one side of the cabinet facing the door body, and the abutting piece is connected to the second elastic element and abuts against the door body in a detachable manner.

[0020] As a preferred scheme of the door opening and closing mechanism provided by the utility model, the door body ejecting device is multiple, and the multiple door body ejecting devices are arranged between the cabinet and the door body in a height direction of the cabinet.

[0021] As a preferred scheme of the door opening and closing mechanism provided by the utility model, the distance between the door body ejecting device and the rotating shaft of the door body is smaller than the distance between the door body ejecting device and the lock.

[0022] As a preferred scheme of the door opening and closing mechanism provided by the utility model, the lock comprises a fixed shell, a pre-tightening piece and a pre-tightening elastic element, the fixed shell is mounted on the cabinet, the pre-tightening piece is arranged in the fixed shell in a swingable manner, the pre-tightening elastic element is connected between the pre-tightening piece and the fixed shell, and the pre-tightening piece can be in a pre-tightening position; the lock tongue is provided with a clamping groove, the lock tongue can be inserted into the fixed shell, when the lock tongue and the lock are in a detachable positioning state, the pre-tightening piece swings to the pre-tightening position and is clamped in the clamping groove.

[0023] As a preferred scheme of the door opening and closing mechanism provided by the utility model, the lock further comprises a swing shell and a locking screw rod, the swing shell is arranged in the fixed shell in a swingable manner, and the swing shell can swing and be converted between a locking position and an unlocking position.

[0024] The locking screw rod is arranged in the swing shell and is arranged in a spaced manner with the pre-tightening piece, the lock tongue can be inserted between the pre-tightening piece and the locking screw rod, one side of the lock tongue facing the locking screw rod is provided with a tooth-shaped locking part, and the tooth-shaped locking part can be engaged with or separated from the locking screw rod.

[0025] When the swing shell swings to the locking position, the locking screw rod contacts the lock tongue, the locking screw rod can be positively rotated to engage with the tooth-shaped locking part to be locked; the locking screw rod can also be reversely rotated to push the tooth-shaped locking part out of the space between the pre-tightening piece and the locking screw rod.

[0026] When the swing shell swings to the unlocking position, the locking screw rod can be separated from the lock tongue.

[0027] When the locking bolt is driven to push out the space between the pre-tightening member and the locking screw during the rotation of the locking screw, the pre-tightening member exits the clamping groove and exits the pre-tightening position, at this time the locking bolt and the locking screw are still in the locking state, when the swing housing swings to the unlocking position, the locking bolt and the lock are converted from the locking state to the disengaged state, at this time the door body ejection device releases energy and ejects to open the door body to the second preset angle.

[0028] As a preferred scheme of the door opening and closing mechanism provided by the utility model, the automatic door closing force applied by the door closer during the process that the door body automatically closes from the first preset angle to the third preset angle is less than the ejection door opening force of the door body ejection device when opening the door body to the second preset angle, and the locking door closing force during the process that the locking bolt is driven to extend into the space between the pre-tightening member and the locking screw.

[0029] According to another aspect of the utility model, the purpose is to provide a kind of clothes processing equipment, the clothes processing equipment includes cabinet and door body, further include the opening and closing mechanism as any one of the above scheme, the opening and closing mechanism is arranged between the door body and the clothes delivery opening of the cabinet, the door body is rotatably arranged at the clothes delivery opening, and the clothes delivery opening can be rotated to close or open, the side of the door body away from pivot is provided with locking bolt.

[0030] The utility model has the advantages of:

[0031] The switch door mechanism is provided between a clothes putting opening of a box body of a clothes processing device and a door body, the door body is rotatably arranged at the clothes putting opening, the clothes putting opening can be closed or opened by rotation of the door body, and the door body is provided with a lock tongue. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings needed to be used in the description of the embodiments of the present utility model will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained by those skilled in the art according to the contents of the embodiments of the present utility model and the drawings without any creative effort.

[0033] Figure 1 is a structural schematic diagram of a clothes processing device provided by the present utility model embodiment;

[0034] Figure 2 is a partial structural schematic diagram of a clothes processing device provided by the present utility model embodiment Figure 1 ;

[0035] Figure 3 is a partial structural schematic diagram of a clothes processing device provided by the present utility model embodiment Figure 2 ;

[0036] Figure 4 is Figure 3A local enlarged view of the middle structure marked as A;

[0037] Figure 5 is a schematic view of a door closer provided by the embodiment of the utility model and installed at the pivot of a door body;

[0038] Figure 6 is a schematic view of a door closer provided by the embodiment of the utility model;

[0039] Figure 7 is a partial structure schematic view of a door closer provided by the embodiment of the utility model;

[0040] Figure 8 is a structure schematic view of a cam provided by the embodiment of the utility model;

[0041] Figure 9 is a schematic view of a lock provided by the embodiment of the utility model;

[0042] Figure 10 is an internal structure schematic view of a lock provided by the embodiment of the utility model Figure 1 .

[0043] Figure 11 is an internal structure schematic view of a lock provided by the embodiment of the utility model Figure 2 .

[0044] In the figure:

[0045] 10, box body; 20, door body; 30, lock tongue; 31, clamping groove; 32, tooth-shaped locking part;

[0046] 100, lock; 110, fixed shell; 111, sliding groove; 112, through opening; 113, abutting boss; 120, pre-tightening piece; 121, pre-tightening boss; 130, pre-tightening elastic element; 140, swinging shell; 141, swinging shaft; 150, locking screw; 160, first driving device; 170, second driving device; 181, transmission rack; 182, swinging elastic element; 183, transmission gear set; 190, pull rope;

[0047] 200, door closer; 210, cam; 211, circular arc part; 212, protruding part; 213, recessed part; 220, energy storage assembly; 221, roller; 222, adapter; 223, first elastic element; 230, sleeve; 240, connecting clamp;

[0048] 300, door body ejecting device; 310, second elastic element; 320, abutting piece. DETAILED DESCRIPTION

[0049] The technical solutions of the utility model are further illustrated below in combination with the drawings and through specific embodiments.

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0052] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0053] In the description of the utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0054] In the description of the utility model, it should also be noted that, unless otherwise specified and limited, the terms "set", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected. For those of ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0055] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on the surface" of the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0056] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0057] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0058] Figure 1 A structural schematic diagram of a clothes processing device provided by an embodiment of the present application is shown, Figure 2 A partial structural schematic diagram of a clothes processing device provided by an embodiment of the present application is shown Figure 3 , Figure 2 A partial structural schematic diagram of a clothes processing device provided by an embodiment of the present application is shown Figures 1-3 . With reference to Figure 4 , the present embodiment provides a door opening and closing mechanism and a clothes processing device. The clothes processing device comprises a box body 10 and a door body 20, and further comprises the door opening and closing mechanism provided by the present embodiment. The door body 20 is rotatably arranged at the clothes feeding opening and can rotate to close or open the clothes feeding opening. The door body 20 is provided with a lock tongue 30. The door opening and closing mechanism is arranged between the clothes feeding opening of the box body 10 and the door body 20.

[0059] Figure 3 A partial enlarged view of structure marked as A in Figure 5 is shown, Figures 2-5 A schematic diagram showing the installation of a door closer provided by an embodiment of the present application at the rotating shaft of the door body is shown. With reference to Figure 6The switch door mechanism comprises a lock 100, a door closer 200 and a door body pop-out device 300. The lock 100 is arranged on the cabinet 10, and the lock tongue 30 and the lock 100 have a disengaged state, a contact unlocking state, a separable positioning state and a locked state. The lock 100 is actuated to enable the lock tongue 30 and the lock 100 to be switched between the disengaged state, the contact unlocking state, the separable positioning state and the locked state.

[0060] In the disengaged state, the lock tongue 30 is separated from the lock 100, and the door body 20 is opened relative to the clothes dropping opening. In the contact unlocking state, the lock tongue 30 is inserted into the lock 100, but the lock 100 is not actuated at this time, and the lock tongue 30 and the lock 100 are not locked or pre-tightened. In the separable positioning state, the door body 20 closes the clothes dropping opening, and at this time the user can pull the door body 20 to open the door body 20, and the lock tongue 30 and the lock 100 are pre-tightened but not locked. In the locked state, the door body 20 is locked at the clothes dropping opening, and the door body 20 cannot be opened before the lock 100 is unlocked.

[0061] Figure 7 A schematic view of a door closer is shown, Figure 8 A partial structure schematic view of a door closer is shown, Figures 5-8 A structure schematic view of a cam is shown. Referring to Figure 7 The door closer 200 is arranged at the rotating connection between the door body 20 and the cabinet 10. When the door body 20 and the clothes dropping opening are at a first preset angle, the door closer 200 can drive the door body 20 to continue rotating to a third preset angle, so that the lock tongue 30 and the lock 100 are switched from the disengaged state to the contact unlocking state. In this embodiment, the first preset angle can be 30°-50°, and the third preset angle can be 2°-5°. The first preset angle is preferably 45°, and the third preset angle is preferably 3°.

[0062] Specifically, the door closer 200 comprises a cam 210 and an energy storage assembly 220. The cam 210 is coaxially arranged on the rotating shaft of the door body 20, and the energy storage assembly 220 is connected to the door body 20 or the cabinet 10 and movably abuts against the wheel surface of the cam 210. During the opening or closing of the door body 20 relative to the clothes dropping opening, the first end of the energy storage assembly 220 can move in the door opening direction or the door closing direction along the wheel surface of the cam 210.

[0063] Further specifically, referring to Figure 8 and Figures 5-7The wheel surface of the cam 210 is provided with a circular arc portion 211, a convex portion 212 and a concave portion 213 which are sequentially connected and smoothly transitioned. In the process of opening the door body 20 relative to the clothes throwing opening, the first end of the energy storage assembly 220 moves along the concave portion 213 and the convex portion 212 to the circular arc portion 211 in sequence, and the energy storage assembly 220 accumulates energy.

[0064] In the process of closing the door body 20 relative to the clothes throwing opening, when the first end of the energy storage assembly 220 moves along the circular arc portion 211 to the convex portion 212, the door body 20 is manually closed relative to the clothes throwing opening to the first preset angle.

[0065] After the door body 20 is manually closed relative to the clothes throwing opening to the first preset angle, the energy storage assembly 220 releases energy and drives itself to continue to move away from the convex portion 212 to the concave portion 213, so that the door body 20 is automatically closed relative to the clothes throwing opening to the third preset angle, realizing the automatic door closing process.

[0066] More specifically, referring to Figure 7 The door closer 200 further comprises a sleeve 230 movably connected between the box body 10 and the rotating shaft of the door body 20. In the embodiment, the first end of the sleeve 230 is connected to the rotating shaft of the door body 20, and the second end of the sleeve 230 is fixed on the box body 10 through a connecting clamp 240. The cam 210 is coaxially assembled on the rotating shaft of the door body 20, and the rotating shaft can rotate with the door body 20, thereby realizing the relative rotation of the energy storage assembly 220 and the cam 210. The energy storage assembly 220 is coaxially arranged in the sleeve 230, and the first end of the energy storage assembly 220 corresponds to the first end of the sleeve 230.

[0067] Referring to Figure 3 The energy storage assembly 220 comprises a roller 221, an adapter 222 and a first elastic element 223. The roller 221 is rotatably connected to the adapter 222 about its own axis, and the rotation axis of the roller 221 is parallel to the rotating shaft of the door body 20. The roller 221 can roll along the wheel surface of the cam 210. The adapter 222 is arranged in the first end of the sleeve 230. The first elastic element 223 is arranged between the side of the adapter 222 away from the roller 221 and the bottom of the second end of the sleeve 230. The first elastic element 223 can be compressed to accumulate energy or restored to release energy along the axial direction of the sleeve 230.

[0068] In another embodiment, the cam 210 is coaxially arranged on the rotating shaft of the door body 20, the rotating shaft does not rotate with the door body 20, the first end of the sleeve 230 is connected to the rotating shaft of the door body 20, and the second end of the sleeve 230 is arranged on the door body 20, the sleeve 230 can rotate synchronously with the door body 20, so as to realize the relative rotation between the energy storage assembly 220 and the cam 210.

[0069] With reference to the foregoing Figure 4 and Figure 9 , the door body ejecting device 300 is arranged between the cabinet 10 and the door body 20, and in the embodiment, the door body ejecting device 300 is specifically arranged on the side of the door body 20 facing the cabinet 10. When the lock tongue 30 and the lock 100 are switched from the contact unlocking state to the locking state, the door body ejecting device 300 stores energy. When the lock tongue 30 and the lock 100 are switched from the locking state to the disengaged state, the door body ejecting device 300 releases energy to eject the door body 20 to a second preset angle, which is greater than the first preset angle. The second preset angle can be specifically 30°-50°, and in the embodiment, the second preset angle is specifically preferably 50°.

[0070] Specifically, the door body ejecting device 300 is multiple, and the multiple door body ejecting devices 300 are arranged between the cabinet 10 and the door body 20 in the height direction of the cabinet 10. In the embodiment, the door body ejecting device 300 is specifically two. Through the above arrangement, the uniformity and reliability of the force of the door body 20 being ejected relative to the clothes throwing opening can be ensured.

[0071] More specifically, the distance between the door body ejecting device 300 and the rotating shaft of the door body 20 is less than the distance between the door body ejecting device 300 and the lock 100. Through the above arrangement, compared with the scheme of arranging the door body ejecting device 300 with the same elastic force on the side of the door body 20 close to the lock tongue 30, the ejection angle of the door body 20, i.e., the second preset angle, can be increased under the condition that the door body ejecting device 300 returns to the original state and releases the same amount of energy.

[0072] More specifically, the door body ejecting device 300 includes a second elastic element 310 and an abutting piece 320, the second elastic element 310 is arranged on the side of the door body 20 facing the cabinet 10, and the abutting piece 320 is connected to the second elastic element 310 and can be separated to abut against the cabinet 10. Or, the second elastic element 310 is arranged on the side of the cabinet 10 facing the door body 20, and the abutting piece 320 is connected to the second elastic element 310 and can be separated to abut against the door body 20. In the embodiment, the second elastic element 310 is arranged on the side of the door body 20 facing the cabinet 10. Through the arrangement of the abutting piece 320, the reliability of the door body ejecting device 300 abutting against the cabinet 10 can be improved.

[0073] Figure 10 A schematic view of a lock is shown, Figure 1 A schematic view of an internal structure of a lock is shown Figure 11 , Figure 2 A schematic view of an internal structure of a lock is shown Figures 9-11 .

[0074] Referring Figure 10 The lock 100 comprises a fixed housing 110, a pre-tightening member 120 and a pre-tightening elastic element 130. The fixed housing 110 is mounted on the cabinet 10, the pre-tightening member 120 is swingably arranged in the fixed housing 110, and the pre-tightening elastic element 130 is connected between the pre-tightening member 120 and the fixed housing 110, so as to enable the pre-tightening member 120 to be in a pre-tightening position. The lock tongue 30 is provided with a clamping groove 31, and the lock tongue 30 can be inserted into the fixed housing 110. When the lock tongue 30 and the lock 100 are in a separable positioning state, the pre-tightening member 120 swings to the pre-tightening position and is clamped in the clamping groove 31. At this time, the lock tongue 30 is connected with the lock 100, but is not locked. Before the washing process of the laundry treatment equipment starts, the user can pull the door body 20 to separate the lock tongue 30 from the pre-tightening member 120 and pull the lock tongue 30 out of the fixed housing 110 to open the door body 20.

[0075] Specifically, the pre-tightening member 120 is provided with a pre-tightening protrusion 121, the pre-tightening protrusion 121 can be clamped in the clamping groove 31, the groove wall of the clamping groove 31 is in a slope shape, and the pre-tightening protrusion 121 is provided with a slope-shaped guide surface. In the process of converting the lock tongue 30 and the lock 100 from a contact unlocking state to a separable positioning state, the slope-shaped guide surface can slide relative to the groove wall of the clamping groove 31, so as to enable the pre-tightening protrusion 121 to enter the clamping groove 31. In the process of converting the lock tongue 30 and the lock 100 from a separable positioning state to a contact unlocking state, the slope-shaped guide surface can slide relative to the groove wall of the clamping groove 31, so as to enable the pre-tightening protrusion 121 to move out of the clamping groove 31.

[0076] Further specifically, the above-mentioned slope-shaped guide surface is divided into an entering slope and an exiting slope, the slope angle of the entering slope is smaller, which is beneficial to reduce the resistance when the pre-tightening protrusion 121 enters the clamping groove 31; and the slope angle of the exiting slope is larger, which is beneficial to reach a set positioning force value of the separable positioning state.

[0077] More specifically, the lock 100 further comprises a swing housing 140 swingably arranged in the fixed housing 110, and a locking screw 150 arranged in the swing housing 140 and spaced apart from the pre-tightening member 120, the locking bolt 30 being capable of extending between the pre-tightening member 120 and the locking screw 150, the locking screw 150 being provided with an involute screw structure on a peripheral side thereof, and the locking bolt 30 being provided with a tooth-shaped locking portion 32 on a side thereof facing the locking screw 150, the tooth-shaped locking portion 32 being capable of engaging or disengaging with the involute screw structure during rotation of the locking screw 150.

[0078] When the swing housing 140 swings to the locking position, the locking screw 150 contacts the locking bolt 30, the locking screw 150 being capable of rotating in a forward direction to cause the involute screw structure to engage with the tooth-shaped locking portion 32 to lock, thereby pulling the locking bolt 30 to extend into the space between the pre-tightening member 120 and the locking screw 150. The locking screw 150 is also capable of rotating in a reverse direction to push the tooth-shaped locking portion 32 out of the space between the pre-tightening member 120 and the locking screw 150. When the swing housing 140 swings to the unlocking position, the locking screw 150 is capable of disengaging from the locking bolt 30, and if the pre-tightening protrusion 121 and the clamping groove 31 have been engaged in place at this time, the locking bolt 30 and the lock 100 are in a separable positioning state at this time.

[0079] That is, when the locking screw 150 rotates in the reverse direction to drive the locking bolt 30 to push out during the pre-tightening member 120 exiting the clamping groove 31 and exiting the pre-tightening position, the locking bolt 30 and the locking screw 150 are still in the locked state at this time, the swing housing 140 swings to the unlocking position, and the locking bolt 30 and the lock 100 can only be converted from the locked state to the disengaged state at this time, and the door body needs to be opened to the second preset angle by relying on the energy released by the door body ejection device 300, i.e., the door body 20 is opened to the second preset angle by the door body ejection device 300.

[0080] It should be noted that the automatic closing force applied by the door closer 200 during automatic closing of the door body 20 from the first preset angle to the third preset angle is < the ejection opening force of the door body 20 opened to the second preset angle by the door body ejection device 300 < the locking closing force of the locking bolt 30 driven by the locking screw 150 to extend into the space between the pre-tightening member 120 and the locking screw 150.

[0081] More specifically, the lock 100 further comprises a first driving device 160 and a second driving device 170. The first driving device 160 is arranged on the swing housing 140 and is drivingly connected to the fixed housing 110, and can drive the swing housing 140 to swing relative to the fixed housing 110 to switch between the locked position and the unlocked position. The second driving device 170 is arranged on the swing housing 140 and is drivingly connected to the locking screw 150, and can drive the locking screw 150 to act to lock with the lock tongue 30 or drive the lock tongue 30 to exit between the pre-tightening member 120 and the locking screw 150 to form an unlocked state, and can also drive the lock tongue 30 to extend into the space between the pre-tightening member 120 and the locking screw 150. In the embodiment, the first driving device 160 and the second driving device 170 can both be driving motors in the prior art.

[0082] With reference to the drawings Figure 11 and Figure 9 , the lock 100 further comprises a lock tongue approach sensor, a lock tongue in-place sensor, and a swing position sensor. The lock tongue approach sensor can send a lock tongue approach signal when the lock tongue 30 approaches the lock 100, at which time the first driving device 160 starts to drive the swing housing 140 to swing from the unlocked position to the locked position. It should be noted that when the user is in a hurry, the door body 20 can be directly closed to the clothes throwing opening by pushing the door body 20, that is, the lock tongue 30 is quickly inserted into the space between the pre-tightening member 120 and the locking screw 150, at which time no collision or other problems will occur because the swing housing 140 is still in the unlocked position.

[0083] When the lock tongue 30 moves to the connection in-place with the pre-tightening member 120, the lock tongue in-place sensor sends a lock tongue in-place signal, at which time the first driving device 160 drives the swing housing 140 to swing from the locked position to the unlocked position, so that the lock tongue 30 is positioned only by the pre-tightening member 120, at which time the lock tongue 30 and the lock 100 are in a separable positioning state, at which time the user can pull the door body 20 to open the clothes throwing opening to add clothes or perform other operations.

[0084] The swing position sensor can detect the swing position of the swing housing 140 to determine whether the swing housing 140 is in the unlocked position or the locked position. When the swing housing 140 detects that the swing housing 140 is in the unlocked position and the clothes treatment apparatus sends a locking start signal, the first driving device 160 can drive the swing housing 140 to swing from the unlocked position to the locked position, and the second driving device 170 can drive the locking screw 150 to rotate to lock with the lock tongue 30. After the above process is completed, the door body 20 is locked at the clothes throwing opening, thereby ensuring the safe performance of the subsequent washing process.

[0085] Specifically, the lock 100 further comprises a transmission rack 181 and a transmission gear set 183, the first driving device 160 and the transmission gear set 183 are in transmission connection and are both connected to the swing housing 140. The fixed housing 110 is provided with a sliding groove 111, the transmission rack 181 is arranged in the sliding groove 111 and is engaged with the transmission gear set 183, and the first driving device 160 can drive the transmission gear set 183 to rotate to drive the swing housing 140 to swing relative to the fixed housing 110 along the extension direction of the sliding groove 111 to switch between the unlocking position and the locking position.

[0086] Specifically, the lock 100 further comprises a swing elastic element 182. The transmission rack 181 is movably arranged in the sliding groove 111, and the swing elastic element 182 is connected between one end of the transmission rack 181 and the abutting boss 113 in the fixed housing 110. In the process that the swing housing 140 swings from the unlocking position to the locking position, the transmission rack 181 can move in the sliding groove 111, and the swing elastic element 182 can be compressed to store energy. When the tooth-shaped locking portion 32 cannot be engaged with the helical teeth of the locking screw 150, the swing housing 140 cannot temporarily swing to the locking position. At this time, the first driving device 160 drives the transmission gear set 183 to rotate to drive the transmission rack 181 to move in the direction of the swing elastic element 182, and the swing elastic element 182 is compressed to store energy. At the same time, the second driving device 170 drives the locking screw 150 to rotate, and the helical teeth of the rotating locking screw 150 move relative to the teeth of the tooth-shaped locking portion 32. When the teeth of the two move to the tooth top offset from each other and the tooth top is opposite to the tooth groove, the two can quickly engage under the elastic action of the swing elastic element 182 to make the swing housing 140 swing to the locking position.

[0087] As a preferred, with reference to ​ The fixed housing 110 is provided with an opening 112, and the swing housing 140 is connected with a pull rope 190 which can extend out of the opening 112. The pull rope 190 can drive the swing housing 140 to swing relative to the fixed housing 110 to make the swing housing 140 swing from the locking position to the unlocking position. That is, in an emergency, the user can pull the swing housing 140 to swing through the pull rope 190, and the transmission rack 181 and the transmission gear set 183 swing together with the swing housing 140 in the direction of being pulled, and in this process, the swing elastic element 182 is compressed, so that the tooth-shaped locking portion 32 of the locking bolt 30 is disengaged from the unlocking of the locking screw 150, the manual door opening is realized, and the safety and reliability of the product are ensured. It should be noted that the pull rope 190 can be a soft plastic rope or a flexible strip of other materials.

[0088] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A door opening mechanism, characterized by A door body (20) is rotatably arranged at a clothes feeding opening of a cabinet (10) of a clothes treatment apparatus, and can rotate to close or open the clothes feeding opening. The door body (20) is provided with a lock tongue (30). The door opening and closing mechanism comprises: A lock (100) is arranged on the cabinet (10). The lock tongue (30) and the lock (100) have a disengaged state, a contact unlocking state, a separable positioning state and a locked state. The lock (100) can drive the lock tongue (30) and the lock (100) to switch between the contact unlocking state, the separable positioning state and the locked state. A door closer (200) is arranged at a rotating connection between the door body (20) and the cabinet (10). When the door body (20) and the clothes feeding opening are at a first preset angle, the door closer (200) can drive the door body (20) to continue rotating to a third preset angle, so that the lock tongue (30) and the lock (100) switch from the disengaged state to the contact unlocking state. A door body ejecting device (300) is arranged between the cabinet (10) and the door body (20). When the lock tongue (30) and the lock (100) switch from the contact unlocking state to the locked state, the door body ejecting device (300) stores energy. When the lock tongue (30) and the lock (100) switch from the locked state to the disengaged state, the door body ejecting device (300) releases energy to eject the door body (20) to a second preset angle. The second preset angle is greater than the first preset angle.

2. The door opening mechanism according to claim 1, characterized in that The door closer (200) comprises a cam (210) and an energy storage assembly (220). The cam (210) is coaxially arranged on a rotating shaft of the door body (20). The energy storage assembly (220) is connected to the door body (20) or the cabinet (10), and movably abuts against a wheel surface of the cam (210). During opening or closing of the door body (20) relative to the clothes feeding opening, a first end of the energy storage assembly (220) can move along the wheel surface of the cam (210) in an opening direction or a closing direction.

3. A door opening mechanism according to claim 2, characterised in that The wheel surface of the cam (210) is provided with a circular arc portion (211), a convex portion (212) and a concave portion (213) which are sequentially connected and smoothly transitioned. During opening of the door body (20) relative to the clothes feeding opening, the first end of the energy storage assembly (220) moves along the concave portion (213) and the convex portion (212) to the circular arc portion (211) in sequence, and the energy storage assembly (220) stores energy. During closing of the door body (20) relative to the clothes feeding opening, when the first end of the energy storage assembly (220) moves along the circular arc portion (211) to the convex portion (212), the door body (20) is manually closed relative to the clothes feeding opening to the first preset angle. After the door body (20) is manually closed to the first preset angle relative to the clothes feeding opening, the energy storage assembly (220) releases energy and drives itself to continue to move away from the protruding part (212) to the recessed part (213) to automatically close the door body (20) to the third preset angle relative to the clothes feeding opening.

4. The door opening mechanism of claim 2, wherein The door closer (200) further comprises a sleeve (230) movably connected between the box body (10) and the rotating shaft of the door body (20), the energy storage assembly (220) comprises a roller (221), an adapter (222) and a first elastic element (223), the roller (221) is rotatably connected to the adapter (222) around its axis, the roller (221) can roll along the wheel surface of the cam (210), the adapter (222) is arranged at the end opening of the sleeve (230) close to the rotating shaft of the door body (20), the first elastic element (223) is arranged between the adapter (222) and the bottom of the sleeve (230), and the first elastic element (223) can compress and store energy or restore and release energy along the axis direction of the sleeve (230).

5. The door opening mechanism of claim 1, wherein The door body ejection device (300) comprises a second elastic element (310) and an abutting element (320), the second elastic element (310) is arranged on the side of the door body (20) facing the box body (10), the abutting element (320) is connected to the second elastic element (310) and abuts against the box body (10) in a detachable manner; or, The second elastic element (310) is arranged on the side of the box body (10) facing the door body (20), and the abutting element (320) is connected to the second elastic element (310) and abuts against the door body (20) in a detachable manner.

6. The door opening mechanism of claim 1, wherein The door body ejection device (300) is provided in a plurality of numbers, and the door body ejection devices (300) are arranged in a spaced manner along the height direction of the box body (10) between the box body (10) and the door body (20).

7. The door opening mechanism of claim 1, wherein The distance between the door body ejection device (300) and the rotating shaft of the door body (20) is smaller than the distance between the door body ejection device (300) and the lockset (100).

8. The door opening mechanism of claim 1, wherein The lock (100) comprises a fixed shell (110), a pre-tightening part (120) and a pre-tightening elastic element (130), the fixed shell (110) is mounted on the box (10), the pre-tightening part (120) is swingably arranged in the fixed shell (110), the pre-tightening elastic element (130) is connected between the pre-tightening part (120) and the fixed shell (110), and the pre-tightening part (120) can be in a pre-tightening position; the lock tongue (30) is provided with a clamping groove (31), the lock tongue (30) can extend into the fixed shell (110), when the lock tongue (30) and the lock (100) are in a separable positioning state, the pre-tightening part (120) swings to the pre-tightening position and is clamped in the clamping groove (31).

9. A door opening mechanism according to claim 8, characterised in that The lock (100) further comprises a swing shell (140) and a locking screw (150), the swing shell (140) is swingably arranged in the fixed shell (110), and the swing shell (140) can swing and convert between a locking position and an unlocking position; The locking screw (150) is arranged in the swing shell (140) and is spaced apart from the pre-tightening part (120), the lock tongue (30) can extend between the pre-tightening part (120) and the locking screw (150), a tooth-shaped locking part (32) is arranged on one side of the lock tongue (30) facing the locking screw (150), and the tooth-shaped locking part (32) can be engaged with or separated from the locking screw (150); When the swing shell (140) swings to the locking position, the locking screw (150) contacts the lock tongue (30), the locking screw (150) can be positively rotated to engage and lock with the tooth-shaped locking part (32); the locking screw (150) can also be reversely rotated to push the tooth-shaped locking part (32) out of the space between the pre-tightening part (120) and the locking screw (150); When the swing shell (140) swings to the unlocking position, the locking screw (150) can be separated from the lock tongue (30); When the locking screw (150) rotates to drive the lock tongue (30) to push out of the space between the pre-tightening part (120) and the locking screw (150), the pre-tightening part (120) exits the clamping groove (31) and exits the pre-tightening position, at this time, the lock tongue (30) and the locking screw (150) are still in the locking state, when the swing shell (140) swings to the unlocking position, the lock tongue (30) and the lock (100) are converted from the locking state to the separation state, at this time, the door body ejection device (300) releases energy to eject and open the door body (20) to the second preset angle.

10. A door opening mechanism according to claim 9, characterised in that The automatic closing force applied by the door closer (200) during the process that the door body (20) automatically closes from the first preset angle to the third preset angle is less than the opening and closing force of the door body (20) applied by the door body opening device (300) during the process that the door body (20) is opened to the second preset angle, and less than the locking closing force applied by the locking screw (150) during the process that the locking bolt (30) is driven to extend into the space between the pre-tightening member (120) and the locking screw (150).

11. Laundry treatment apparatus, characterized by, The laundry treating apparatus comprises a cabinet (10) and a door body (20), and further comprises the opening and closing door mechanism according to any one of claims 1-10, which is arranged between a laundry loading port of the cabinet (10) and the door body (20), the door body (20) being rotatably arranged at the laundry loading port and capable of rotating to close or open the laundry loading port, and the door body (20) being provided with a locking bolt (30) on a side away from a rotation shaft.

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