CN110409141B - Locking device for cover body, upper cover structure of laundry equipment and laundry equipment - Google Patents
Locking device for cover body, upper cover structure of laundry equipment and laundry equipment Download PDFInfo
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- CN110409141B CN110409141B CN201810403754.XA CN201810403754A CN110409141B CN 110409141 B CN110409141 B CN 110409141B CN 201810403754 A CN201810403754 A CN 201810403754A CN 110409141 B CN110409141 B CN 110409141B
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- Prior art keywords
- damping wheel
- limiting plate
- barrel
- locking device
- shaft rod
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention relates to the field of laundry equipment, and discloses a locking device for a cover body, an upper cover structure of the laundry equipment and the laundry equipment, wherein the locking device comprises a rotating shaft part and a supporting part, wherein: the rotating shaft part comprises a shaft rod (2), a barrel-shaped piece (3) and a limiting plate piece (4), the shaft rod (2) is rotatably installed on the supporting part, gear teeth which are spaced from each other are formed at the end part of the barrel-shaped piece (3), the barrel-shaped piece (3) is fixedly connected to the shaft rod (2), the limiting plate piece (4) is installed on the supporting part, and the limiting plate piece (4) can only move along the thickness direction of the limiting plate piece (4) so that the limiting plate piece (4) can be switched between a one-way stopping position and a disengaging position, wherein the limiting plate piece (4) can only rotate along a first direction at the one-way stopping position. The application provides a locking device can prevent that the accident of lid from opening, and stability is high and the fault rate is low.
Description
Technical Field
The invention relates to the field of laundry equipment, in particular to a locking device for a cover body, an upper cover structure of the laundry equipment and the laundry equipment.
Background
The upper cover of the upper cover-opening type washing machine needs to be locked to prevent the upper cover from being opened accidentally when the dehydration barrel rotates at a high speed, such as in a spin-drying dehydration procedure. The locking structure commonly used in the existing upper cover-opening type washing machine is an electromagnetic driving bolt structure, a door hook is arranged on a cover plate, and the door cover is locked by inserting the bolt into the door hook. The locking structure needs to arrange a hole matched with the door hook on the workbench, and electrical faults are likely to be caused by water seepage; and once the bolt and the door hook are dislocated, the door cover cannot be locked, so that the failure rate is high; in addition, the locking structure is also very abrupt in appearance due to the holes arranged on the workbench, so that the integral attractiveness is influenced.
Disclosure of Invention
The invention aims to solve the problem that the locking structure of an upper cover-opening type washing machine in the prior art has high failure rate, and provides a locking device for a cover body.
The application provides a locking device for lid, this locking device includes pivot portion and supporting part, wherein: the rotating shaft part comprises a shaft rod, a barrel-shaped piece and a limiting plate, the shaft rod is rotatably arranged on the supporting part, gear teeth which are spaced from each other are formed at the end part of the barrel-shaped piece, the barrel-shaped piece is fixedly connected to the shaft rod, the limiting plate is arranged on the supporting part and can only move along the thickness direction of the limiting plate, so that the limiting plate can be switched between a one-way stopping position and a disengaging position, and the limiting plate can only rotate along a first direction at the one-way stopping position.
Preferably, in the one-way stopping position, the limiting plate is configured such that when the limiting plate rotates around the axis of the shaft rod in a first direction, a lower end surface of the limiting plate contacts with the gear teeth of the barrel, and the limiting plate is configured such that when the limiting plate rotates in a second direction opposite to the first direction, a side surface of the limiting plate contacts with the gear teeth of the barrel, and in the disengaging position, the limiting plate disengages from the barrel.
Preferably, in the one-way stopping position, a plane where a cross section of the barrel, which is in contact with the limiting plate, is located is defined as a plane a, the limiting plate and the plane a intersect at a line segment B, and a straight line which passes through the center of the cross section of the barrel in the plane a and is perpendicular to the line segment B is a straight line C, wherein the length of the line segment B on a first side of the straight line C is greater than the length of the line segment B on a second side of the straight line C.
Preferably, the support portion includes a main housing, the shaft rod is rotatably disposed in the main housing along a length direction of the main housing, the rotation shaft portion includes a first damping wheel, a second damping wheel and a first elastic member which are sequentially mounted on the shaft rod along the length direction of the main housing, the first damping wheel, the second damping wheel and the first elastic member are all located in the main housing, the barrel-shaped member is disposed at an end portion of the shaft rod, the first elastic member is compressed between the barrel-shaped member and the second damping wheel, the first damping wheel is fixedly connected to the shaft rod, the second damping wheel is sleeved on the shaft rod, and anti-rotation structures which are matched with each other to prevent the second damping wheel from rotating relative to the main housing are disposed on an outer wall surface of the second damping wheel and an inner wall surface of the main housing to enable the second damping wheel to rotate together with the main housing, the anti-rotation structure is arranged to enable the second damping wheel to move relative to the shaft rod and the main shell along the axial direction of the shaft rod, the end faces, facing each other, of the first damping wheel and the second damping wheel comprise mutually matched inclined faces, so that when the second damping wheel rotates along the first direction, the second damping wheel is gradually far away from the first damping wheel, and the first elastic piece is arranged to enable the first damping wheel and the second damping wheel to be at least kept at the position where the first damping wheel and the second damping wheel are in contact under a natural state.
Preferably, the first elastic member is configured to maintain the first damping wheel and the second damping wheel at a position where the inclined surface of the first damping wheel and the inclined surface of the second damping wheel are completely attached in a natural state.
Preferably, one of the inner wall surface of the main housing and the outer wall surface of the second damping wheel is provided with a rib along the length direction of the main housing, and the other is provided with a groove matched with the rib, and the rib and the groove are engaged with each other to jointly form the anti-rotation structure.
Preferably, the first damper wheel and the shaft are integrally formed.
Preferably, the locking device comprises a biasing member having elasticity, the biasing member connects the limiting plate member and the supporting portion and is configured to press the limiting plate member in a natural state to maintain the limiting plate member at the disengagement position.
Preferably, be formed with on the main casing body and be used for holding the holding tank of spacing plate, be provided with on the main casing body and be used for sealing the main casing body apron of holding tank, the both sides of spacing plate with the lateral wall laminating of holding tank, the biasing piece extrusion main casing body apron with make between the rear portion of spacing plate is pushed down and with the tank bottom contact of holding tank and the anterior perk of spacing plate, thereby avoid the front portion of spacing plate with the teeth of a cogwheel contact of tubbiness spare.
Preferably, the locking device includes a driving part mounted to the support part and including an actuating member that is shiftable between a first position in which the actuating member is positionable in the first position and contacts the biasing member such that the teeth of the barrel member contact the front portion of the check plate member to cause the biasing member to depress the front portion of the check plate member to maintain the check plate member in the one-way stop position, and a second position in which the actuating member is disengaged from the biasing member.
Preferably, the driving part comprises a motor for driving the driving member, the driving member is a cam, the biasing member comprises a second elastic member and a protruding rod connected with the second elastic member, the protruding rod penetrates out of the main housing cover plate and can move relative to the main housing cover plate, and in the first position, the cam is in contact with the protruding rod so that the biasing member is kept at a position of pressing down the front part of the limiting plate member.
Preferably, the locking device comprises an anti-rotation support, wherein an anti-rotation hole is formed in the anti-rotation support, the shaft lever penetrates through the end portion of the main shell, a connecting section for connecting with the anti-rotation support is formed on a portion, penetrating out of the main shell, of the shaft lever, and the connecting section extends into the anti-rotation hole to form a key connection with the anti-rotation hole.
The second aspect of the present application provides an upper cover structure of a laundry device, the upper cover structure of the laundry device includes a workbench, a cover body and a locking device for the cover body, the anti-rotation bracket is mounted on the workbench, and the cover body is fixedly connected to the supporting portion.
A third aspect of the present application provides a laundry device including the upper cover structure of the laundry device as described above.
Through above-mentioned technical scheme, utilize the locking device for lid that this application provided, with this locking device's the anti-rotation support fixed mounting on laundry equipment's workstation to with supporting part fixed mounting on the lid, because the axostylus axostyle is rotatably installed in the supporting part, supporting part and lid can take place to rotate for the axostylus axostyle. When the limiting plate is located at the disengaging position, the cover body is not limited to rotate, the cover body can rotate relative to a workbench of the washing equipment, and the cover body can be freely switched between an opening state and a closing state; when spacing plate is located one-way backstop position, when spacing plate rotates along the first direction, because the teeth of a cogwheel of tubbiness spare and the lower terminal surface contact of spacing plate, thereby make spacing plate unrestricted along the first direction rotation with spacing plate jack-up that makes, and when spacing plate moved along the second direction, because the teeth of a cogwheel of tubbiness spare and the side contact of spacing plate, because spacing plate only can move and can not remove and the tubbiness spare can't move for the workstation to both sides along the thickness direction of self, cause the removal of spacing plate along the second direction to receive the restriction. Therefore, when the cover body is in the closed state, the limiting plate is kept at the one-way stopping position, the cover body cannot rotate along the second direction, and the cover body needs to rotate along the second direction when being converted from the closed state to the open state, so that the cover body in the closed state cannot be opened.
Drawings
FIG. 1 is a schematic view of a locking device according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of a portion of the latch according to the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of the side of the restrictor panel of the locking device of FIG. 1 in a one-way stop position in contact with the gear teeth of the barrel;
FIG. 4 is a schematic view of the side of the restrictor panel of the locking device of FIG. 1 in a one-way stop position in contact with the gear teeth of the barrel;
FIG. 5 is a schematic view of the gear teeth of the barrel of the locking device of FIG. 1 passing through the lower end face of the check plate in the one-way stop position;
FIG. 6 is a schematic view of the restrictor panel of the locking device of FIG. 1 in a disengaged position;
FIG. 7 is an assembly view of the barrel and the restrictor panel of the locking device of FIG. 1 in a disengaged position;
FIG. 8 is a schematic view of the locking device of FIG. 1 showing the restrictor panel in a one-way stop position in mating relationship with the receiving slot;
FIG. 9 is a schematic view from another perspective of the latch of FIG. 1;
FIG. 10 is a schematic view of the first damper wheel and the second damper wheel of the lockout device of FIG. 1 fully engaged;
FIG. 11 is a schematic illustration of the first damper wheel and the second damper wheel of the lockout device of FIG. 1 disengaged from each other;
fig. 12 is a schematic view of an upper cover structure of a laundry device according to a preferred embodiment of the present invention;
fig. 13 is a schematic diagram of a preferred embodiment of the present application.
Description of the reference numerals
1-anti-rotation support 2-shaft lever 3-barrel 4-limiting plate 5-driving piece 6-main shell
7-holding groove 8-motor 9-anti-rotation hole 10-connecting section
11-first elastic member 12-second elastic member 13-projecting rod
21-first cover 22-second cover 23-main housing cover plate
31-first damping wheel 32-second damping wheel
60-cover 70-workbench
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a locking device for a cover body, which comprises a rotating shaft part, a supporting part and an anti-rotating bracket 1, wherein: the rotating shaft part comprises a shaft rod 2, a barrel-shaped piece 3 and a limiting plate 4, the shaft rod 2 is rotatably arranged on the supporting part, the end part of the barrel-shaped piece 3 is provided with gear teeth which are spaced from each other, the barrel-shaped piece 3 is fixedly connected with the shaft rod 2, the limiting plate 4 is arranged on the supporting part, and the limiting plate 4 can only move along the thickness direction of the limiting plate 4 so as to enable the limiting plate 4 to be switched between a one-way stopping position and a disengaging position, wherein in the one-way stopping position, the limiting plate 4 is arranged to be in contact with the gear teeth of the barrel-shaped piece 3 when the limiting plate 4 rotates along a first direction around the axis of the shaft rod 2, and the limiting plate 4 is arranged to be in contact with the gear teeth of the barrel-shaped piece 3 when the limiting plate 4 rotates along a second direction opposite to the first direction, in the disengaged position, the restraining plate 4 is disengaged from the barrel 3; the supporting portion is used for being fixedly mounted on a cover body 60 so as to rotate together with the cover body 60, the cover body 60 can rotate around the axis of the shaft rod 2 relative to a workbench 70 to be switched between an opening state and a closing state, and the cover body 60 rotates along the first direction when being switched from the opening state to the closing state; the anti-rotation bracket 1 is fixedly connected to the shaft 2 and is used for fixing to the table 70.
As shown in fig. 1 and 2, with the locking device for a cover provided by the present application, the anti-rotation bracket 1 of the locking device is fixedly mounted on the workbench 70 of the laundry device, and the support part is fixedly mounted on the cover 60, and since the shaft rod 2 is rotatably mounted on the support part, the support part and the cover can rotate relative to the shaft rod. When the limiting plate 4 is located at the disengaging position, the rotation of the cover body 60 is not limited, and the cover body 60 can rotate relative to the workbench 70 of the laundry device, i.e., the cover body 60 can be freely switched between the opening state and the closing state; when spacing plate 4 is located one-way backstop position, when spacing plate 4 rotates along the first direction, because the teeth of a cogwheel of tubbiness piece 3 and the lower terminal surface contact of spacing plate 4, thereby with spacing plate 4 upwards jack-up make spacing plate 4 unrestricted along the first direction rotation, and when spacing plate 4 moved along the second direction, because the teeth of a cogwheel of tubbiness piece 3 and the side contact of spacing plate 4, because spacing plate 4 only can move and can not remove to both sides and tubbiness piece 3 can't move for the workstation along the thickness direction of self, cause the removal of spacing plate 4 along the second direction to receive the restriction. Therefore, when the cover 60 is in the closed state, the limiting plate 4 is kept in the one-way stopping position, and the cover 60 cannot rotate in the second direction, and the cover 60 needs to rotate in the second direction when the cover 60 is switched from the closed state to the open state, so that the cover 60 in the closed state cannot be opened.
The limiting plate 4 may be of any suitable structure, and preferably, as shown in fig. 13, at the one-way stopping position, a plane defining a cross section of the barrel 3 contacting the limiting plate is a plane a, the limiting plate 4 intersects the plane a at a line segment B, and a straight line passing through a center of the cross section of the barrel in the plane a and perpendicular to the line segment B is a straight line C, wherein a length of the line segment B on a first side of the straight line C is greater than a length of the line segment B on a second side of the straight line C.
In the structure shown in fig. 13, the limiting plate 4 is defined to be movable in the vertical direction, and the line segment B is movable in the vertical direction, and when the limiting plate 4 is located at the disengagement position, the line segment B is located at a height higher than the highest point to which the gear teeth of the tub 3 can move, so that the limiting plate 4 does not contact the tub 3 whether moving in the first direction or the second direction; when the line segment B is located at the height of the illustrated position, since the length of the left side (first side) of the line C is longer than the length of the right side (second side) of the line C, when the limiting plate 4 rotates counterclockwise, that is, the barrel-shaped member 3 rotates clockwise with respect to the limiting plate 4, the gear teeth first contact the portions at the two ends of the line segment B, that is, the gear teeth first contact the lower end surface of the limiting plate 4, and since the limiting plate 4 can move in the vertical direction, the limiting plate 4 is jacked up, so that the counterclockwise rotation of the limiting plate 4 is not limited; when the restriction plate 4 is rotated clockwise, that is, the tub 3 is rotated counterclockwise with respect to the restriction plate 4, as can be seen from fig. 13, the gear teeth first contact the end of the line segment B, and the clockwise rotation of the restriction plate 4 is restricted because the restriction plate 4 cannot move to both sides and the tub 3 does not move with respect to the table 70. When the limiting plate 4 is arranged to rotate along the first direction, the limiting plate 4 rotates counterclockwise in the plane a, the movement of the limiting plate 4 rotating along the second direction is limited, and the limiting plate 4 cannot be switched from the closed state to the open state of the cover 60. The line segment B may be completely located on one side of the straight line C, and the same effect can be achieved. Furthermore, it should be noted that the above is only one embodiment of the present application, and in this embodiment, the plane of the limiting plate 4 located at the one-way stopping position is perpendicular to the plane (i.e., the plane a) of the cross section of the barrel 3 contacting with the limiting plate 4, and of course, the above technical effect can be achieved if the plane of the limiting plate 4 located at the one-way stopping position is not perpendicular to the plane of the cross section of the barrel 3 contacting with the limiting plate 4, and this embodiment will be described in detail below.
In daily use, the cover 60 is normally locked to prevent accidental opening only when the laundry device is in operation, and in other cases, the cover 60 is required to be kept free to switch between the open and closed states, and for this purpose, the locking device includes a resilient biasing member that connects the restraining panel 4 and the support portion and is configured to press the restraining panel 4 in a natural state to keep the restraining panel 4 in the disengaged position. In a normal state, the biasing member continuously applies pressure to the restricting plate member 4, thereby positioning the restricting plate member 4 at the disengaged position.
Specifically, preferably, be formed with on the main casing body 6 and be used for holding the holding tank 7 of spacing plate member 4, be provided with on the main casing body 6 and be used for sealing main casing body cover plate 23 of holding tank 7, the both sides of spacing plate member 4 with the lateral wall laminating of holding tank 7, the biasing piece extrusion makes between main casing body cover plate 23 with between the rear portion of spacing plate member 4 is pushed down and with the tank bottom contact of holding tank 7 and the anterior perk of spacing plate member 4, thereby avoid the front portion of spacing plate member 4 with the teeth of a cogwheel contact of tubbiness member 3.
As shown in fig. 2 and 8, the main housing 6 is provided with a receiving groove 7, and the shape of the side wall of the receiving groove 7 matches with the shape of the two side ends of the limiting plate 4, so that the limiting plate 4 cannot move to the two sides of itself. Referring to the structure shown in fig. 6 and 7, when the rear portion of the restricting plate member 4 is pressed by the biasing member, the rear portion of the restricting plate member 4 is pressed downward and accordingly the front portion of the restricting plate member 4 is tilted up, and at this time, the restricting plate member 4 is not in contact with the gear teeth of the tub 3, and the rotation of the restricting plate member 4 is not restricted by the tub 3.
In order to enable the restraining plate 4 to be switched between the disengaged position and the one-way stop position, the locking device comprises a drive part mounted to the support part and comprising a drive member 5 which is switchable between a first position in which the drive member 5 is positionable in contact with the biasing member such that the restraining plate 4 is in contact with the front portion of the restraining plate 4 such that the biasing member presses the front portion of the restraining plate 4 to retain the restraining plate 4 in the one-way stop position, and a second position in which the drive member 5 is disengaged from the biasing member.
Fig. 4 and 5 show a state in which the front portion of the restricting plate 4 is pressed down by the biasing member, i.e., a state in which the restricting plate 4 is located at the one-way stopping position, in which the front portion of the restricting plate 4 is in contact with the gear teeth of the barrel 3. Specifically, referring to the structure shown in fig. 3, the width of the front part of the limiting plate 4 is smaller than the width of the rear part of the limiting plate 4, and when the limiting plate 4 rotates counterclockwise, the gear teeth touch the lower end surface of the front part of the limiting plate 4, so that the limiting plate 4 is jacked up; when the restricting plate 4 rotates clockwise, the gear teeth collide with the right side surface of the front portion of the restricting plate 4, and the clockwise movement of the restricting plate 4 is restricted since the tub 3 remains stationary with respect to the table 70. It can be seen that the plane of the limiting plate 4 at the one-way stopping position is not perpendicular to the plane (i.e. the plane a) of the cross section of the barrel 3 contacting with the limiting plate 4, but still cooperates with the barrel 3 to realize the one-way limiting function.
The driving part may adopt a specific structure, and preferably, as shown in fig. 9, the driving part includes a motor 8 for driving the driving part 5, the driving part 5 is a cam, the biasing member includes a second elastic member 12 and a protruding rod 13 connected to the second elastic member 12, the protruding rod 13 protrudes out of the main housing cover plate 23 and can move relative to the main housing cover plate 23, and in the first position, the cam contacts with the protruding rod 13 so that the biasing member is kept at a position of pressing down the front portion of the limiting plate member 4. The second elastic member 12 may be an arched elastic piece, and the elastic piece is pressed between the main housing cover plate 23 and the limiting plate 4, and the main housing cover plate 23 has a long hole.
In the structure of fig. 4 and 5, the cam is located at the first position, so that the protruding rod 13 is pressed against one end of the elongated hole, the elastic sheet is moved to a position where one end of the elastic sheet is pressed on the front part of the limiting plate member 4, so that the front part of the limiting plate member 4 is pressed down to a position where the front part can be contacted with the gear teeth of the barrel-shaped member 3, and at the moment, the limiting plate member 4 is located at the one-way stopping position, can move in the first direction, and cannot move in the second direction; in the structures of fig. 6 and 7, the cam is located at the second position, so that the protruding rod 13 is pushed against the other end of the elongated hole, the elastic sheet is moved to the position where one end of the elastic sheet is extruded at the rear part of the limiting plate member 4, the rear part of the limiting plate member 4 is pressed downwards, the front part of the limiting plate member 4 tilts, the front part of the limiting plate member 4 is located at the position where the gear teeth of the barrel-shaped member 3 are separated, the limiting plate member 4 is located at the separation position at the moment, and the movement of the limiting plate member 4 is not limited. Of course, the cam may not contact with the protruding rod 13 at the second position, and the elastic piece may be set to return to a position of pressing the rear portion of the limiting plate 4 by its own elastic force, so that the limiting plate is also kept at the disengaged position. As shown in fig. 1 and 9, the motor 8 may be fixedly disposed on the main housing 6 by bolts, and the driving member 5 is not limited to a cam, and may be an eccentric wheel, an eccentric shaft, or the like.
For the top-opening type washing machine, when the cover 60 is switched from the open state to the closed state, since the cover 60 has a relatively large mass, the cover 60 is easily and rapidly dropped on the table 70 by gravity, which easily causes damage to related components and is inconvenient for the user to use daily.
In order to improve the situation, preferably, the support portion includes a main housing 6, the shaft rod 2 is rotatably disposed in the main housing 6 along a length direction of the main housing 6, the rotation shaft portion includes a first damping wheel 31, a second damping wheel 32 and a first elastic member 11 which are sequentially mounted on the shaft rod 2 along the length direction of the main housing 6, the first damping wheel 31, the second damping wheel 32 and the first elastic member 11 are all located in the main housing 6, the barrel 3 is disposed at an end portion of the shaft rod 2, the first elastic member 11 is compressed between the barrel 3 and the second damping wheel 32, the first damping wheel 31 is fixedly connected to the shaft rod 2, the second damping wheel 32 is sleeved on the shaft rod 2, an outer wall surface of the second damping wheel 32 and an inner wall surface of the main housing 6 are provided with anti-rotation structures which are matched with each other to prevent the second damping wheel 32 from rotating relative to the main housing 6, the rotation preventing structure is configured to enable the second damping wheel 32 to move relative to the shaft 2 and the main housing 6 along the axial direction of the shaft 2, and the end surfaces of the first damping wheel 31 and the second damping wheel 32 facing each other include mutually matched inclined surfaces, so that when the shaft 2 rotates along the first direction, the second damping wheel 32 gradually moves away from the first damping wheel 31, the first elastic member 11 is configured to enable the first damping wheel 31 to abut against the second cover 22 under a natural state, and the first damping wheel 31 and the second damping wheel 32 are at least kept at a position where the first damping wheel 31 and the second damping wheel 32 are in contact. Wherein the first elastic member 11 is configured to maintain the first damper wheel 31 and the second damper wheel 32 at a position where the inclined surface of the first damper wheel 31 and the inclined surface of the second damper wheel 32 are completely attached in a natural state.
As shown in fig. 2, the shaft rod 2 is rotatably disposed in the main housing 6 along the length direction of the main housing 6, and the first damping wheel 31, the second damping wheel 32, the first elastic member 11 and the barrel member 3 are disposed on the shaft rod 2 along the direction from the second end to the first end of the main housing 6, wherein the first damping wheel 31 can be integrally molded with the shaft rod 2, and the outer diameter of the first damping wheel is larger than the diameter of the through hole of the main housing 6 at the second end, so that the first damping wheel abuts against the second end of the main housing 6, and the barrel member 3 abuts against the first end of the main housing 6, so that the shaft rod 2 can only rotate relative to the main housing 6 and can not move in the main housing 6 along the axial direction.
Since the first elastic member 11 is disposed between the barrel 3 and the second damping wheel 32, the barrel 3 is fixedly connected to the end of the shaft 2 and cannot move in the axial direction of the shaft 2, the second damping wheel 32 can only move in the axial direction of the shaft 2 relative to the main housing 6 due to the rotation preventing structure formed between the second damping wheel 32 and the main housing 6, and therefore the second damping wheel 32 and the first elastic member 11 can interact with each other, specifically, referring to the structure of fig. 10, when the first elastic member 11 in a natural state makes the inclined surface of the second damping wheel 32 completely fit with the inclined surface of the first damping wheel 31, when the cover 60 moves in the first direction when switching from the open state to the closed state, the second damping wheel 32 follows the cover 60 and also moves in the first direction, since the end surfaces of the first damping wheel 31 and the second damping wheel 32 facing each other include the inclined surfaces that match each other, during the rotation of the second damping wheel 32, the second damper wheel 32 is further away from the first damper wheel 31 along the axial direction of the shaft 2, and the second damper wheel 32 is gradually away from the first damper wheel 31 against the elastic force of the first elastic member 11 until the inclined surface of the second damper wheel 32 and the inclined surface of the first damper wheel 31 are disengaged from each other.
Fig. 11 is a schematic view showing the inclined surface of the second damping wheel 32 and the inclined surface of the first damping wheel 31 being disengaged from each other, in which even though the cover 60 continues to move in the first direction so that the second damping wheel 32 continues to move in the first direction, the second damping wheel 32 cannot continue to compress the first elastic member 11 because the inclined surface of the first damping wheel 31 and the inclined surface of the second damping wheel 32 cannot interact with each other any more.
Therefore, when the cover 60 moves in the first direction, the first elastic member 11 is gradually compressed to generate an increasing elastic force, the cover 60 must overcome the elastic force of the first elastic member 11 to move to the closed state, and the user must continuously apply a force to close the cover 60, so as to prevent the cover 60 from being damaged due to collision with the workbench 70 caused by rapid closing under the action of gravity.
The application provides a locking device in practical application, can set up first damping wheel 31 and the complete laminating of second damping wheel 32 when lid 60 is opened completely to make the whole lid in-process of closing at lid 60 all can receive the damping effect of first elastic component 11, also can set up at lid 60 and only break away from first damping wheel 31 and second damping wheel 32 when closed state simultaneously, guarantee to close the damping wheel that lid in-process first elastic component 11 produced and increase gradually.
The anti-rotation structure may be in an appropriate form, and preferably, one of the inner wall surface of the main housing 6 and the outer wall surface of the second damping wheel 32 is provided with a rib along the length direction of the main housing 6, and the other is provided with a groove matched with the rib, and the rib and the groove are engaged with each other to form the anti-rotation structure together.
Fig. 10 and 11 show an embodiment in which the outer wall surface of the second damping wheel 32 is provided with a rib along the length direction of the main housing 6, and accordingly, the inner wall surface of the main housing 6 is provided with a groove along the length direction of the main housing 6, and the second damping wheel 32 can be driven to rotate together by the matching structure of the rib and the groove when the main housing 6 rotates, and by the matching structure, when the second damping wheel 32 rotates together with the main housing 6 relative to the shaft 2, the second damping wheel 32 also generates axial movement relative to the shaft 2 by the movement of the rib in the groove during the rotation.
In addition, the anti-rotation support 1 can be connected with the shaft rod 2 by adopting a proper structure, preferably, an anti-rotation hole 9 is formed on the anti-rotation support 1, the shaft rod 2 penetrates through the end part of the main shell 6, the part of the shaft rod 2 penetrating out of the main shell 6 forms a connecting section 10 used for being connected with the anti-rotation support 1, and the connecting section 10 extends into the anti-rotation hole 9 to form a key connection with the anti-rotation hole 9. The rotation-preventing bracket 1 is fixed to the table 70 by bolting so that the spindle 2 cannot rotate relative to the table 70.
In addition, according to another aspect of the present application, the present application further provides an upper cover structure of a laundry device, the upper cover structure of the laundry device includes a workbench 70, a cover body 60, and a locking device for the cover body as described above, the anti-rotation bracket 1 is mounted on the workbench 70, and the cover body 60 is fixedly connected to the supporting portion.
As shown in fig. 12, since the cover body 60 rotates around the shaft 2, the locking device provided in the present application is preferably provided at the edge of the cover body 60; further, the locking device may be installed in a space in the thickness direction of the cover body 60 so as to be covered by the upper surface of the cover body 60, hidden in the cover body 60.
According to a third aspect of the present application, there is also provided a laundry appliance including the upper cover structure of the laundry appliance as described above.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (13)
1. A locking device for a cover, characterized in that the locking device comprises a rotating shaft portion and a support portion, wherein:
the rotating shaft part comprises a shaft rod (2), a barrel-shaped piece (3) and a limiting plate piece (4), the shaft rod (2) is rotatably installed on the supporting part, gear teeth which are spaced from each other are formed at the end part of the barrel-shaped piece (3), the barrel-shaped piece (3) is fixedly connected to the shaft rod (2), the limiting plate piece (4) is installed on the supporting part, and the limiting plate piece (4) can only move along the thickness direction of the limiting plate piece relative to the supporting part, so that the limiting plate piece (4) can be switched between a one-way stopping position and a disengaging position, wherein in the one-way stopping position, the limiting plate piece (4) can only rotate along a first direction relative to the rotating shaft part;
the supporting part comprises a main shell (6), the shaft rod (2) is rotatably arranged in the main shell (6) along the length direction of the main shell (6), the rotating shaft part comprises a first damping wheel (31), a second damping wheel (32) and a first elastic part (11) which are sequentially arranged on the shaft rod (2) along the length direction of the main shell (6), the first damping wheel (31), the second damping wheel (32) and the first elastic part (11) are all positioned in the main shell (6), the barrel-shaped part (3) is arranged at the end part of the shaft rod (2), the first elastic part (11) is compressed between the barrel-shaped part (3) and the second damping wheel (32), the first damping wheel (31) is fixedly connected with the shaft rod (2), and the second damping wheel (32) is sleeved on the shaft rod (2),
anti-rotation structures which are matched with each other to prevent the second damping wheel (32) from rotating relative to the main shell (6) are arranged on the outer wall surface of the second damping wheel (32) and the inner wall surface of the main shell (6) so that the second damping wheel (32) can rotate together with the main shell (6), the anti-rotation structures are arranged to enable the second damping wheel (32) to move relative to the shaft rod (2) and the main shell (6) along the axial direction of the shaft rod (2), the end surfaces of the first damping wheel (31) and the second damping wheel (32) facing each other comprise mutually matched inclined surfaces, so that when the second damping wheel (32) rotates along the first direction, the second damping wheel (32) is gradually far away from the first damping wheel (31),
the first elastic member (11) is arranged to keep the first damper wheel (31) and the second damper wheel (32) at least at a position where the first damper wheel (31) and the second damper wheel (32) are in contact in a natural state.
2. A locking device according to claim 1, wherein in the one-way stop position the restraining plate (4) is arranged such that when the restraining plate (4) is rotated in a first direction about the axis of the shaft (2), a lower end face of the restraining plate (4) is in contact with the teeth of the barrel (3), and the restraining plate (4) is arranged such that when the restraining plate (4) is rotated in a second direction opposite to the first direction, a side face of the restraining plate (4) is in contact with the teeth of the barrel (3), in the disengaged position the restraining plate (4) is disengaged from the barrel (3).
3. A locking device according to claim 1, characterized in that in the one-way stop position, the plane defining the cross section of the barrel (3) in contact with the restraining plate (4) is plane A, the restraining plate (4) intersects plane A at line segment B, the straight line passing through the centre of the cross section of the barrel (3) in plane A and perpendicular to line segment B is straight line C,
wherein the length of the line segment B on the first side of the straight line C is larger than the length of the line segment B on the second side of the straight line C.
4. A locking device according to claim 1, characterized in that the first elastic member (11) is arranged to keep the first damping wheel (31) and the second damping wheel (32) in a position in which the inclined surfaces of the first damping wheel (31) and the second damping wheel (32) are completely in abutment in a natural state.
5. A locking device according to claim 1, wherein one of the inner wall surface of the main housing (6) and the outer wall surface of the second damping wheel (32) is provided with a rib along the length of the main housing (6), and the other is provided with a groove cooperating with the rib, the rib and the groove engaging with each other to form the anti-rotation structure together.
6. A locking device according to claim 1, wherein the first damping wheel (31) and the shaft (2) are integrally formed.
7. A locking arrangement as claimed in claim 1, characterised by comprising a resilient biasing member connecting the restraining plate member (4) and the support portion and arranged to press the restraining plate member (4) in a natural state to retain the restraining plate member (4) in the disengaged position.
8. The locking device according to claim 7, wherein an accommodating groove (7) for accommodating the limiting plate member (4) is formed in the main housing body (6), a main housing cover plate (23) for closing the accommodating groove (7) is arranged on the main housing body (6), two sides of the limiting plate member (4) are attached to side walls of the accommodating groove (7), and the biasing member is pressed between the main housing cover plate (23) and the rear portion of the limiting plate member (4) so that the rear portion of the limiting plate member (4) is pressed down to be in contact with a groove bottom of the accommodating groove (7) and the front portion of the limiting plate member (4) tilts up, thereby avoiding contact between the front portion of the limiting plate member (4) and the gear teeth of the barrel-shaped member (3).
9. A locking arrangement as claimed in claim 8, characterized in that the locking arrangement comprises a drive part which is mounted to the support part and which comprises a drive member (5) which can be switched between a first position and a second position, wherein the drive member (5) can be positioned in the first position,
in the first position, the driving member (5) contacts the biasing member so that the gear teeth of the barrel member (3) contact the front portion of the restraining plate member (4) so that the biasing member presses down the front portion of the restraining plate member (4) to maintain the restraining plate member (4) in the one-way stop position, and in the second position, the driving member (5) is disengaged from the biasing member.
10. A locking arrangement as claimed in claim 9, wherein the drive means comprises a motor (8) for driving the drive member (5), the drive member (5) is a cam, and the biasing member comprises a second resilient member (12) and a projecting rod (13) connected to the second resilient member (12), the projecting rod (13) extends through the main housing cover plate (23) and is movable relative to the main housing cover plate (23), and in the first position the cam contacts the projecting rod (13) such that the biasing member is held in a position in which it depresses a front portion of the limit plate member (4).
11. Locking device according to claim 1, characterized in that it comprises an anti-rotation support (1), said anti-rotation support (1) being provided with an anti-rotation hole (9), said shaft rod (2) extending through the end of said main housing (6), the portion of said shaft rod (2) extending out of said main housing (6) forming a connecting section (10) for connecting with said anti-rotation support (1), said connecting section (10) extending into said anti-rotation hole (9) to form a key connection with said anti-rotation hole (9).
12. An upper cover structure of a laundry device, characterized in that, the upper cover structure of the laundry device comprises a workbench (70), a cover body (60) and a locking device for the cover body according to any one of claims 1 to 10, the locking device comprises an anti-rotation support (1), an anti-rotation hole (9) is arranged on the anti-rotation support (1), the shaft lever (2) penetrates through the end of the main casing body (6), the part of the shaft lever (2) penetrating out of the main casing body (6) forms a connecting section (10) for connecting with the anti-rotation support (1), the connecting section (10) extends into the anti-rotation hole (9) to form a key connection with the anti-rotation hole (9),
the anti-rotation support (1) is arranged on the workbench (70), and the cover body (60) is fixedly connected with the supporting part.
13. A laundry appliance comprising the upper cover structure of the laundry appliance of claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403754.XA CN110409141B (en) | 2018-04-28 | 2018-04-28 | Locking device for cover body, upper cover structure of laundry equipment and laundry equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403754.XA CN110409141B (en) | 2018-04-28 | 2018-04-28 | Locking device for cover body, upper cover structure of laundry equipment and laundry equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110409141A CN110409141A (en) | 2019-11-05 |
| CN110409141B true CN110409141B (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403754.XA Active CN110409141B (en) | 2018-04-28 | 2018-04-28 | Locking device for cover body, upper cover structure of laundry equipment and laundry equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409141B (en) |
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| EP0146996A2 (en) * | 1983-12-23 | 1985-07-03 | Constructions Electro-Mecaniques D'amiens | Washing machine having a door with a mechanical jamming device |
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| CN107653645A (en) * | 2016-07-26 | 2018-02-02 | 无锡小天鹅股份有限公司 | The table assembly of washing machine and there is its washing machine |
| CN207260783U (en) * | 2017-09-27 | 2018-04-20 | 重庆市艾尔伴家科技有限公司 | The burglar-proof mechanism of intelligent door lock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102040791B1 (en) * | 2011-02-18 | 2019-11-07 | 삼성전자주식회사 | Washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146996A2 (en) * | 1983-12-23 | 1985-07-03 | Constructions Electro-Mecaniques D'amiens | Washing machine having a door with a mechanical jamming device |
| JP2008202345A (en) * | 2007-02-21 | 2008-09-04 | Miwa Lock Co Ltd | Drop lock |
| CN106283547A (en) * | 2015-05-22 | 2017-01-04 | 青岛海尔洗衣机有限公司 | A kind of washing machine cover opening-closing structure and washing machine |
| CN105449568A (en) * | 2015-11-27 | 2016-03-30 | 平高集团有限公司 | Interlocking device for valve and middle door of switchgear |
| CN107653645A (en) * | 2016-07-26 | 2018-02-02 | 无锡小天鹅股份有限公司 | The table assembly of washing machine and there is its washing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110409141A (en) | 2019-11-05 |
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