CN210828815U - Opening and closing door assembly and dish washing machine using same - Google Patents
Opening and closing door assembly and dish washing machine using same Download PDFInfo
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- CN210828815U CN210828815U CN201921380282.7U CN201921380282U CN210828815U CN 210828815 U CN210828815 U CN 210828815U CN 201921380282 U CN201921380282 U CN 201921380282U CN 210828815 U CN210828815 U CN 210828815U
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Abstract
The utility model discloses a door opening and closing assembly and a dish washing machine, which comprises a fixed sleeve group, a movable inner pipe which is partially embedded in the fixed sleeve group and is suitable for moving relative to the fixed sleeve group in the axial direction, and a driving structure which is suitable for driving the movable inner pipe to move, wherein the driving structure comprises a screw rod assembly which is connected with the movable inner pipe, a motor assembly which is suitable for driving the screw rod of the screw rod assembly to rotate, and an electromagnet assembly which is connected with the motor assembly and is suitable for driving the motor assembly to move to one side of the screw rod assembly so as to enable the motor assembly to be connected with the screw rod; wherein, a clutch structure which is suitable for leading the screw rod component to be separated from and combined with the motor component is arranged on the side end surface of the screw rod component which is arranged opposite to the motor component. The utility model discloses can realize opening and closing of dish washer door plant under electronic and manual two mode of operation.
Description
Technical Field
The utility model relates to a drive arrangement technical field especially relates to a switch door subassembly and use dish washer of this switch door subassembly.
Background
The dishwasher gradually becomes a widely used household appliance, a door plate of the dishwasher can be in a manual opening and closing mode, and also can be in an electric opening and closing mode, wherein for the dishwasher for electrically opening and closing the door plate, the condition that the door plate is frequently used in the prior art is realized through an electric push rod, the electric push rod in the conventional technology needs to supply power to execute corresponding operation, once the power is off or fails outside a wire outlet, corresponding use obstacles can also appear in the operation of the electric push rod, for example, the door cannot be normally opened or closed, and inconvenience in use is caused. Therefore, one technical direction to be considered for the power pusher in the above case is about the opening or closing operation of the door panel of the dishwasher can be normally performed in case of power failure or power supply failure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first purpose provides an opening and closing door subassembly to solve all openable dish washer door plant's technical problem under electronic and manual two mode of operation.
The second purpose of the utility model is to provide a dish washer to solve all can open the technical problem of dish washer door plant under electronic and manual two mode of operation.
The utility model discloses a switch door subassembly realizes like this:
an opening and closing door assembly comprising:
the fixing sleeve set is provided with a hollow accommodating cavity;
the movable inner pipe is partially embedded in the containing cavity and is suitable for moving relative to the axial direction of the fixed sleeve pipe group;
the driving structure comprises a screw rod assembly connected with the movable inner pipe, a motor assembly suitable for driving a screw rod of the screw rod assembly to rotate, and an electromagnet assembly connected with the motor assembly and suitable for driving the motor assembly to move towards one side of the screw rod assembly so that the motor assembly is connected with the screw rod assembly; and a clutch structure suitable for enabling the screw rod assembly to be separated from and combined with the motor assembly is arranged on the side end face of the screw rod assembly arranged opposite to the motor assembly.
In a preferred embodiment of the present invention, the clutch structure includes a second spline fixed to the side end surface of the screw rod assembly facing the motor assembly, and a first spline fixed to the side end surface of the motor assembly facing the screw rod assembly;
the first spline and the second spline are suitable for splicing and meshing.
In a preferred embodiment of the present invention, the first spline includes a pair of first protrusions symmetrically distributed and protruding from a side end surface of the motor assembly facing the screw rod assembly; and
the second spline comprises a pair of symmetrically distributed second protrusions which are convexly arranged on the side end face of the screw rod assembly facing the motor assembly;
the pair of first protruding parts and the pair of second protruding parts are suitable for being in staggered fit to form a cross-shaped structure.
In a preferred embodiment of the present invention, the fixed sleeve set comprises a first outer sleeve, an outer tube connecting tube, a second outer sleeve and an outer sleeve cap, which are coaxially arranged and sequentially connected along the axial direction; wherein
The first outer sleeve, the outer pipe connecting pipe, the second outer sleeve and the outer sleeve blank cap are coaxially communicated to form the accommodating cavity;
the movable inner pipe is partially embedded in the second outer sleeve, and the motor assembly and the electromagnet assembly are accommodated in the first outer sleeve;
the screw rod assembly comprises a screw rod and a nut in threaded connection with the screw rod, and the movable inner tube is fixedly connected with the nut so that the movable inner tube can axially move relative to the screw rod along with the nut;
the screw rod realizes the supporting and positioning of the screw rod relative to the outer pipe connecting pipe through a bearing.
In the preferred embodiment of the present invention, a bearing retainer is further abutted against one side end of the bearing facing the nut; the bearing retainer ring is sleeved on the screw rod, and the bearing retainer ring is positioned between the nut and the bearing.
In a preferred embodiment of the present invention, a head end connector is further connected to an end of the first outer sleeve away from the outer tube connecting tube; a slotted hole for an electric connecting wire of the motor component and the electromagnet component to pass through is formed in the side wall of the head end connector; and
the part of the movable inner pipe extending out of the second outer sleeve is also connected with a tail end connector.
In the preferred embodiment of the present invention, the motor assembly comprises a motor with dual output shafts, a motor gear box connected to the output shaft of one end of the motor with dual output shafts, and a hall plate and a magnetic ring connected to the output shaft of the other end of the motor with dual output shafts; wherein
The first spline is fixedly connected with the side end face of the motor gear box towards the screw rod.
In a preferred embodiment of the present invention, the electromagnet assembly includes an electromagnet push rod shaft distributed along an axial direction of the fixed sleeve set, an electromagnet coil rack connected to the electromagnet push rod shaft, and an electromagnetic coil wound around the electromagnet push rod shaft; wherein
The two ends of the electromagnet push rod shaft are suitable for extending out of the outer side of the electromagnet coil rack respectively, and the end part, close to the magnetic ring, of the electromagnet push rod shaft is suitable for abutting against the motor assembly.
In the preferred embodiment of the present invention, a motor fixing sleeve is sleeved outside the motor gear box, and a first accommodating groove is concavely formed along the axial direction of the motor fixing sleeve from the side end of the motor fixing sleeve facing the screw rod;
a second accommodating groove is formed in the side end, facing the motor fixing sleeve, of the inner side wall of the outer pipe connecting pipe in a concave mode along the axial direction of the outer pipe connecting pipe; the second accommodating groove corresponds to the first accommodating groove; and an elastic piece suitable for telescopic deformation is arranged between the first accommodating groove and the second accommodating groove.
The utility model discloses a dish washer is realized like this:
a dishwasher, comprising: the switching door assembly.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a door opening and closing component and a dish washing machine using the door opening and closing component, because the side end surface of the screw rod component and the motor component which are arranged oppositely is provided with a clutch structure which is suitable for leading the screw rod component and the motor component to separate and combine, the effect of separating and combining the screw rod component and the motor component can be realized, thereby not only realizing the axial movement of the movable inner pipe driven by the screw rod component relative to the fixed sleeve pipe group through an electric control mode, but also realizing the axial movement of the movable inner pipe driven by the screw rod component relative to the fixed sleeve pipe group through a manual operation mode, and the influence and damage to the structure of the electric control part, namely the electromagnet assembly and the motor assembly can not be generated in the manual operation mode, thereby making the dishwasher of the utility model still can conveniently open and close the door plate even when meeting the power supply obstacle.
Drawings
Fig. 1 is a schematic view of the overall three-dimensional structure of the electric push rod of the present invention;
FIG. 2 is a schematic view of the whole cross-sectional structure of the electric putter of the present invention;
FIG. 3 is a schematic view of the whole internal structure of the electric putter of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of the portion B of FIG. 3;
FIG. 6 is an enlarged view of section C of FIG. 3;
fig. 7 is a schematic view of the motor assembly, the elastic member and the outer tube connecting tube of the electric putter of the present invention in an exploded state;
fig. 8 is a schematic view of a motor assembly of the electric putter of the present invention;
fig. 9 is a schematic view of the motor assembly of the electric putter and the nut of the screw rod assembly in an explosion state according to the present invention;
fig. 10 is a schematic view of the inner section of the head end connector of the electric putter of the present invention in a state of being engaged with the first outer sleeve.
In the figure: the accommodating cavity comprises an accommodating cavity 1, a second spline 2, a first spline 3, a first outer sleeve 4, an outer pipe connecting pipe 5, a second outer sleeve 6, an outer sleeve blank cap 7, a head end connector 8, a wire passing clamp 9, a tail end connector 10, a first O-shaped sealing ring 11, a gasket 12, a screw rod 13, a movable inner pipe 14, a screw nut 15, a bearing retainer ring 16, a C-shaped clamping ring 17, a second O-shaped sealing ring 18, a Hall plate 19, a bearing 20, a magnetic ring 21, a double-output shaft motor 22, a motor gear box 23, a step 25, a motor fixing sleeve 27, a first accommodating groove 28, a second accommodating groove 29, an elastic piece 30, an electromagnet push rod shaft 31, an electromagnet coil rack 32, an electromagnetic coil 33, an electromagnet fixing piece 35, a boss structure 36, a boss 37, a first boss 41 and a second boss.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 to 10, the present embodiment provides a door opening and closing assembly, which is suitable for, but not limited to, a dishwasher, and is only taken as an example of the case of being used in the dishwasher, and specifically, the door opening and closing assembly of the present embodiment includes: the fixed sleeve assembly, partly inlay and establish in fixed sleeve assembly inside and be suitable for the movable inner tube 14 that moves relatively to fixed sleeve assembly axial, and be suitable for the drive structure that drives movable inner tube 14 and move.
In detail, the fixing sleeve set is provided with a hollow accommodating cavity 1; the movable inner tube 14 is partially embedded in the receiving cavity 1, and the movable inner tube 14 is suitable for moving relative to the axial direction of the fixed sleeve set. The driving structure comprises a screw rod assembly connected with the movable inner tube 14, a motor assembly suitable for driving a screw rod 13 of the screw rod assembly to rotate, and an electromagnet assembly connected with the motor assembly and suitable for driving the motor assembly to move towards one side of the screw rod assembly so as to enable the motor assembly to be connected with the screw rod assembly; wherein, a clutch structure which is suitable for leading the screw rod component to be separated from and combined with the motor component is arranged on the side end surface of the screw rod component which is arranged opposite to the motor component.
It should be noted that the clutch structure specifically refers to a part of structures respectively arranged on the screw rod assembly and the motor assembly, and when the part of structures respectively arranged on the screw rod assembly and the motor assembly are in a separated state, the screw rod assembly and the motor assembly are in a separated state; and when a part of structures respectively arranged on the screw rod assembly and the motor assembly are in a contact connection state, the screw rod assembly and the motor assembly are in a connection state. The clutch structure may be, for example, but not limited to, spline structures suitable for coupling and provided on the screw rod assembly and the motor assembly respectively.
The spline structure comprises a second spline 2 fixedly arranged on the side end face of the screw rod assembly facing the motor assembly, and a first spline 3 fixedly arranged on the side end face of the motor assembly facing the screw rod assembly; the first spline 3 and the second spline 2 are suitable for splicing engagement. After the first spline 3 is spliced and meshed with the second spline 2, the motor assembly can drive the screw rod assembly to realize the rotation of the screw rod 13 of the screw rod assembly.
By way of example with reference to the accompanying drawings, in an alternative embodiment, the first spline 3 includes a pair of first protrusions 41 which are symmetrically distributed and are convexly arranged on a side end face of the motor assembly facing the screw rod assembly; the second spline 2 comprises a pair of symmetrically distributed second protruding parts 42 which are convexly arranged on the side end surface of the screw rod assembly facing the motor assembly; the pair of first bosses 41 and the pair of second bosses 42 are adapted to be misaligned to form a cross-shaped configuration. Of course, the first spline 3 and the second spline 2 may also be adapted to have other shapes, such as a convex tooth cone and a concave tooth slot, and the present embodiment is not limited thereto.
More specifically, the fixed sleeve set adopted in this embodiment includes a first outer sleeve 4, an outer sleeve connecting pipe 5, a second outer sleeve 6, and an outer sleeve blank cap 7, which are coaxially arranged and sequentially connected along the axial direction; wherein the first outer sleeve 4, the outer sleeve connecting pipe 5, the second outer sleeve 6 and the outer sleeve blank cap 7 are coaxially communicated to form a containing cavity 1; a part of the movable inner tube 14 is embedded in the second outer sleeve 6, and a part of the movable inner tube 14 extends out of the second outer sleeve 6, while the motor assembly and the electromagnet assembly are accommodated in the first outer sleeve 4. Here, for example, but not limited to, a threaded connection may be used between the first outer tube 4, the outer tube connecting tube 5, the second outer tube 6 and the outer tube blank cap 7.
Wherein, one end of the first outer sleeve 4 far away from the outer pipe connecting pipe 5 is also connected with a head end connector 8; and the lateral wall of the head end connector 8 is provided with a slotted hole for the electric connecting wire of the motor component and the electromagnet component to pass through, and the slotted hole is waterproof, the electric connecting wire of the motor component and the electromagnet component of the embodiment is matched with a wire passing clamp 9, the electric connecting wire of the motor component and the electromagnet component passes through the wire passing clamp 9, and the wire passing clamp 9 is clamped with the slotted hole in an adaptive manner. The line card 9 is made of, for example, but not limited to, a silicone material, so as to achieve a good sealing fit effect between the line card 9 and the slot.
In addition, when the electric push rod of the embodiment is applied to a dishwasher, the electric push rod is conveniently connected with a door panel of the dishwasher so that the door panel can be opened and closed relative to the body of the dishwasher, a tail end connector 10 is further connected to a part of the movable inner tube 14, which extends out of the second outer sleeve 6, and a fixing mode such as, but not limited to, threaded connection is adopted between the tail end connector 10 and the second outer sleeve 6. The tail end connector 10 is used for being connected with a door panel of a dish washing machine, and when the movable inner tube 14 drives the tail end connector 10 to axially move relative to the fixed sleeve group, the tail end connector 10 is used for opening and closing the door panel of the dish washing machine relative to the body of the dish washing machine.
As for the outer sleeve blank cap 7, the main function of the outer sleeve blank cap 7 is to form a blocking function for the radial gap existing between the movable inner tube 14 and the second outer sleeve 6, so that when the electric push rod of the present embodiment is used in a switch door assembly, water is prevented from entering the gap between the movable inner tube 14 and the second outer sleeve 6. Here, the waterproof effect between the movable inner tube 14 and the outer sleeve blank cap 7 is further improved, a first O-ring 11 is provided between the inner side wall of the outer sleeve blank cap 7 facing the movable inner tube 14 and the outer side wall of the movable inner tube 14, and in order to prevent the first O-ring 11 from falling off from the interval formed between the outer sleeve blank cap 7 and the movable inner tube 14 and moving into the interval formed between the second outer sleeve 6 and the movable inner tube 14, an annular gasket 12 suitable for the movable inner tube 14 to pass through is further fixedly provided on the inner side wall of the outer sleeve blank cap 7 facing the movable inner tube 14, and the gasket 12 and the outer sleeve blank cap 7 form a limit interval for limiting the first O-ring 11.
The screw rod assembly comprises a screw rod 13 and a nut 15 in threaded connection with the screw rod 13, and the movable inner tube 14 is fixedly connected with the nut 15 so that the movable inner tube 14 can axially move relative to the screw rod 13 along with the nut 15; the screw 13 supports and positions the screw 13 relative to the outer tube connecting tube 5 through a bearing 20. The second spline 2 can be fixedly connected with the screw 13 of the screw assembly by means of, for example, but not limited to, screw fastening. Considering here the definition of the axial position of the bearing 20, the present embodiment also abuts a bearing retainer ring 16 at the end of the bearing 20 on the side facing the nut 15; the retainer ring 16 is sleeved on the outer side of the portion of the screw rod 13 between the nut 15 and the bearing 20, and in combination with the specific case of the present embodiment, the retainer ring 16 is located at the boundary between the outer tube connecting tube 5 and the second outer tube 6.
For the screw 15, the outer side wall of the screw 15 far away from the screw 13 is in contact with the inner side wall of the second outer sleeve 6, so as to limit the moving track of the screw 15 in the process of driving the movable inner tube 14 to move. Thus, in an optional case, in order to improve the smoothness and the accuracy of the axial track during the process that the nut 15 drives the movable inner tube 14 to axially move relative to the second outer sleeve 6, a sliding groove and a sliding block structure which are matched with each other can be arranged between the end surface of the nut 15 facing the inner side wall of the second outer sleeve 6 and the inner side wall of the second outer sleeve 6.
In addition, considering the limitation of the axial position of the screw rod 13 of the motor assembly, only the nut 15 can move axially relative to the screw rod 13 and the screw rod 13 cannot move axially during the rotation of the screw rod 13, a C-shaped snap ring 17 is sleeved on the part of the screw rod 13 between the second spline 2 and the bearing 20, the C-shaped snap ring 17 clamps the screw rod 13, and the stop limit between the C-shaped snap ring 17 and the bearing 20 prevents the screw rod 13 from moving axially.
In addition, in order to further improve the waterproof performance of the power putter of the present embodiment when used in a dishwasher, a second O-ring 18 is disposed between the outer tube connecting tube 5 and the retainer ring 16, and between the retainer ring 16 and the second outer tube 6.
In detail, the motor assembly of the present embodiment includes a dual output shaft motor 22, a motor gear box 23 connected to an output shaft at one end of the dual output shaft motor 22, and a hall plate 19 and a magnetic ring 21 connected to an output shaft at the other end of the dual output shaft motor 22; wherein the first spline 3 is fixedly connected with the side end face of the motor gear box 23 facing the screw rod 13. The first spline 3 may optionally be secured to the motor gear box 23, for example, but not limited to, by being integrally formed therewith. An outer casing (not shown) is sleeved outside the motor assembly of the embodiment, so that the dual-output-shaft motor 22, the motor gear box 23, the hall plate 19 and the magnetic ring 21 form a whole together, and one end of the dual-output-shaft motor 22 connected with the first spline 3 extends out of the outer casing, so that the first spline 3 is driven by the dual-output-shaft motor 22 to rotate. The main function of the magnetic ring 21 and the hall plate 19 is to combine one of the output shafts of the dual-output shaft motor 22 to acquire the information of the number of rotations of the dual-output shaft motor 22.
The main effect of realizing to the electromagnet assembly that this embodiment adopted lies in pushing away the effect to motor element through electromagnet assembly under the on-state for motor element can meet with the lead screw subassembly under electromagnet assembly's the effect of pushing away, and then realizes that motor element drives the lead screw 13 rotation of lead screw subassembly. Therefore, the present embodiment can be implemented by any electromagnet assembly capable of moving the electromagnet push rod shaft 31 in the prior art, and the present embodiment is not limited to this embodiment, and generally, the electromagnet assembly that meets the needs of the present embodiment generally includes an electromagnet push rod shaft 31 distributed along the axial direction of the fixed sleeve set, an electromagnet coil rack 32 fixedly connected to the electromagnet push rod shaft 31, and an electromagnetic coil 33 wound on the outer circumferential side of the electromagnet push rod shaft 31, wherein the electromagnetic coil 33 is fixed on the electromagnet coil rack 32, the electromagnetic coil 33 is wound on the outer circumferential side of the electromagnet push rod shaft 31, where the electromagnet push rod shaft 31 is movable relative to the electromagnet coil rack 32 to enable the electromagnet push rod shaft 31 to achieve the abutting effect on the motor assembly, and both ends of the electromagnet push rod shaft 31 are adapted to extend out of the electromagnet coil rack, and the end of the electromagnet push rod shaft 31 adjacent to the magnetic ring 21 is adapted to abut against the motor assembly. The on-off of a power supply circuit of the electromagnet assembly is controlled, so that the electromagnet assembly controls an electromagnet central shaft to push the motor assembly, the screw rod 13 is driven to rotate through the matching of the first spline 3 at the output end of the gear box of the motor assembly and the second spline 2 fixedly connected with the screw rod 13 of the screw rod assembly, and the screw nut 15 on the screw rod 13 drives the movable inner tube 14 fixedly connected with the screw nut 15 to axially move.
In detail, the electromagnet assembly of this embodiment is located in the first outer sleeve 4, and an electromagnet fixing member 35 for accommodating the electromagnet assembly is embedded in the first outer sleeve 4. The electromagnet fixing member 35 itself does not move axially relative to the first outer sleeve 4, so in this embodiment, a boss structure 36 for limiting the electromagnet fixing member 35 is disposed on the inner side wall of the first outer sleeve 4, and the boss structure 36 cooperates with a boss 37 formed by connecting the head end connector 8 and the first outer sleeve 4 to form a section of the limiting electromagnet fixing member 35.
It should be noted that, for the electric push rod of the present embodiment, the electromagnet assembly pushes the motor assembly to realize the clutch control of the motor assembly and the screw rod assembly, therefore, for the electromagnet assembly of the present embodiment, optionally, an electromagnet assembly suitable for reciprocating driving may be adopted to realize the clutch of the motor assembly relative to the screw rod assembly, for example, a reciprocating driven electromagnet disclosed in the publication No. CN209045277U, and the clutch control of the motor assembly and the screw rod assembly may be realized through the reciprocating movement of the electromagnet. In a further alternative, the electromagnetic assembly cooperates with the elastic member 30 to realize the clutch control of the motor assembly and the screw rod assembly, which is taken as an example in this embodiment in conjunction with the accompanying drawings.
In detail, a step 25 is formed between the motor gear box 23 and the dual output shaft motor 22 in the embodiment, and a motor fixing sleeve 27 is sleeved outside the motor gear box 23, and one end of the motor fixing sleeve 27 is just abutted on the step 25. In addition, a first accommodating groove 28 is concavely arranged from the side end of the motor fixing sleeve 27 facing the screw 13 along the axial direction of the motor fixing sleeve 27; a second accommodating groove 29 is concavely arranged from the inner side wall of the outer pipe connecting pipe 5 to the side end of the motor fixing sleeve 27 along the axial direction of the outer pipe connecting pipe 5; the second receiving groove 29 corresponds to the first receiving groove 28; and an elastic member 30 adapted to be deformed telescopically is provided between the first receiving groove 28 and the second receiving groove 29. The elastic member 30 is, for example, but not limited to, a spring, and when the electromagnet assembly pushes the motor assembly and the lead screw assembly to be connected through the clutch structure, the elastic member 30 is in a compressed state, and after the pushing action of the electromagnet assembly on the motor assembly disappears, the reset action of the elastic member 30 makes the motor assembly and the lead screw assembly to be separated.
It should be noted that, for the embodiment, the elastic element 30 may also be fixed between the motor assembly and the end surface of the screw rod assembly, which is disposed opposite to the motor assembly, through other structures, for example, one end of the elastic element 30 abuts against the outer shell of the motor assembly, and the other end of the elastic element 30 abuts against the step formed between the outer tube connecting tube 5 and the first outer tube 4.
In an optional embodiment, in order to improve the accuracy of the axial movement track and the smoothness of the movement when the motor assembly moves along the inner side wall of the first outer sleeve 4 toward the screw rod assembly when the electromagnet assembly pushes the motor assembly, an adaptive guide groove and guide bar structure may be designed between the inner side wall of the motor fixing sleeve 27 and the inner side wall of the first outer sleeve.
The specific implementation principle of the electric push rod of the embodiment in the electric and manual modes is as follows:
in the electric operation mode: triggering an external control button of the dish-washing machine, switching on a power supply to electrify the electromagnet assembly, pushing a motor assembly to move to one side of a screw rod assembly by an electromagnet push rod shaft 31 of the electromagnet assembly until a first spline 3 and a second spline 2 are in plug-in connection, so that the motor assembly and the screw rod assembly are connected together, driving a screw rod 13 to rotate by the rotation of a double-output-shaft motor 22, driving a movable inner pipe 14 to move along the axial direction of a second outer sleeve 6 in the rotating process of the screw rod 13, and thus opening a door plate of the dish-washing machine by a tail connector connected with the movable inner pipe 14, wherein in the process, the rotating turns of the double-output-shaft motor 22 are detected by a Hall sensor on a Hall plate 19 connected with the double-output-shaft motor 22, and the double-output-shaft motor 22 stops rotating when the limit position is reached; when the power supply circuit of the electromagnet assembly is controlled to be disconnected, the electromagnet push rod shaft 31 of the electromagnet assembly resets, the motor assembly is bounced back to the original position under the reset action of the elastic piece 30, and at the moment, the first spline 3 is separated from the second spline 2. When the door closing operation needs to be performed, the principle of the door closing operation control is consistent with that of the door opening, and the rotation direction of the dual output shaft motor 22 only needs to be controlled to be opposite to that of the door opening control.
In the manual operation mode: the electromagnet assembly is not electrified, the first spline 3 and the second spline 2 are in a separated state, namely the motor assembly and the screw rod assembly are in a separated state, at the moment, the dishwasher door panel is driven to be opened by external force, namely, the movable inner tube 14 moves along the axial direction of the second outer sleeve 6 by the external force, at the moment, the screw 13 rotates under the action of the movable inner tube 14 by the screw nut 15, and because the first spline 3 and the second spline 2 are in a separated state, the motor assembly cannot generate a resistance effect on the rotation of the screw rod 13 of the screw rod assembly, so that the manual door opening operation can be realized; the principle of the door closing action is consistent with that of the door opening, and only the moving direction of the movable inner tube 14 relative to the second outer sleeve 6 needs to be controlled to be different.
In summary, the electric push rod of the present embodiment, due to the designed clutch structure between the motor assembly and the screw rod assembly, the electric control structure does not affect the manual operation mode, so that the electric push rod of the present embodiment can switch between the electric operation mode and the manual operation mode, and even if the electric push rod is powered off or the electric operation mode fails, the door panel of the dishwasher can be opened in the manual mode.
Example 2:
on the basis of the opening and closing door assembly of embodiment 1, the present embodiment provides a dishwasher, comprising: the switching door assembly of example 2.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. An opening and closing door assembly, comprising:
the fixing sleeve set is provided with a hollow accommodating cavity;
the movable inner pipe is partially embedded in the containing cavity and is suitable for moving relative to the axial direction of the fixed sleeve pipe group;
the driving structure comprises a screw rod assembly connected with the movable inner pipe, a motor assembly suitable for driving a screw rod of the screw rod assembly to rotate, and an electromagnet assembly connected with the motor assembly and suitable for driving the motor assembly to move towards one side of the screw rod assembly so that the motor assembly is connected with the screw rod assembly; and a clutch structure suitable for enabling the screw rod assembly to be separated from and combined with the motor assembly is arranged on the side end face of the screw rod assembly arranged opposite to the motor assembly.
2. The door opening and closing assembly according to claim 1, wherein the clutch structure comprises a second spline fixed to a side end surface of the screw rod assembly facing the motor assembly, and a first spline fixed to a side end surface of the motor assembly facing the screw rod assembly;
the first spline and the second spline are suitable for splicing and meshing.
3. The door opening and closing assembly according to claim 2, wherein the first spline comprises a pair of first protrusions which are symmetrically distributed and are convexly arranged on the side end face of the motor assembly facing the screw rod assembly; and
the second spline comprises a pair of symmetrically distributed second protrusions which are convexly arranged on the side end face of the screw rod assembly facing the motor assembly;
the pair of first protruding parts and the pair of second protruding parts are suitable for being in staggered fit to form a cross-shaped structure.
4. The switch door assembly according to any one of claims 2 or 3, wherein the retaining sleeve set comprises a first outer sleeve, an outer tube connecting tube, a second outer sleeve and an outer sleeve blank cap which are coaxially arranged and sequentially connected along an axial direction; wherein
The first outer sleeve, the outer pipe connecting pipe, the second outer sleeve and the outer sleeve blank cap are coaxially communicated to form the accommodating cavity;
the movable inner pipe is partially embedded in the second outer sleeve, and the motor assembly and the electromagnet assembly are accommodated in the first outer sleeve;
the screw rod assembly comprises a screw rod and a nut in threaded connection with the screw rod, and the movable inner tube is fixedly connected with the nut so that the movable inner tube can axially move relative to the screw rod along with the nut;
the screw rod realizes the supporting and positioning of the screw rod relative to the outer pipe connecting pipe through a bearing.
5. The switching door assembly as claimed in claim 4, wherein a bearing retainer is further abutted against a side end of the bearing facing the nut; the bearing retainer ring is sleeved on the screw rod, and the bearing retainer ring is positioned between the nut and the bearing.
6. The switch door assembly of claim 4, wherein a head end connector is further connected to an end of the first outer sleeve remote from the outer tube connecting tube; a slotted hole for an electric connecting wire of the motor component and the electromagnet component to pass through is formed in the side wall of the head end connector; and
the part of the movable inner pipe extending out of the second outer sleeve is also connected with a tail end connector.
7. The switching door assembly as claimed in claim 4, wherein the motor assembly comprises a dual output shaft motor, a motor gear box connected to an output shaft of one end of the dual output shaft motor, and a Hall plate and a magnetic ring connected to an output shaft of the other end of the dual output shaft motor; wherein
The first spline is fixedly connected with the side end face of the motor gear box towards the screw rod.
8. The switching door assembly as claimed in claim 7, wherein the electromagnet assembly comprises an electromagnet push rod shaft distributed along an axial direction of the fixing sleeve group, an electromagnet coil rack connected with the electromagnet push rod shaft, and an electromagnetic coil wound around the electromagnet push rod shaft; wherein
The two ends of the electromagnet push rod shaft are suitable for extending out of the outer side of the electromagnet coil rack respectively, and the end part, close to the magnetic ring, of the electromagnet push rod shaft is suitable for abutting against the motor assembly.
9. The door opening and closing assembly according to any one of claims 7 or 8, wherein a motor fixing sleeve is sleeved on the outer side of the motor gear box, and a first accommodating groove is concavely formed on the side end of the motor fixing sleeve facing the screw rod along the axial direction of the motor fixing sleeve;
a second accommodating groove is formed in the side end, facing the motor fixing sleeve, of the inner side wall of the outer pipe connecting pipe in a concave mode along the axial direction of the outer pipe connecting pipe; the second accommodating groove corresponds to the first accommodating groove; and
an elastic piece suitable for telescopic deformation is arranged between the first accommodating groove and the second accommodating groove.
10. A dishwasher, comprising: a switching door assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380282.7U CN210828815U (en) | 2019-08-20 | 2019-08-20 | Opening and closing door assembly and dish washing machine using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380282.7U CN210828815U (en) | 2019-08-20 | 2019-08-20 | Opening and closing door assembly and dish washing machine using same |
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| Publication Number | Publication Date |
|---|---|
| CN210828815U true CN210828815U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921380282.7U Active CN210828815U (en) | 2019-08-20 | 2019-08-20 | Opening and closing door assembly and dish washing machine using same |
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| Country | Link |
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| CN (1) | CN210828815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817501A (en) * | 2020-07-13 | 2020-10-23 | 大连恒昇机械有限公司 | Vertical driving push rod |
-
2019
- 2019-08-20 CN CN201921380282.7U patent/CN210828815U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817501A (en) * | 2020-07-13 | 2020-10-23 | 大连恒昇机械有限公司 | Vertical driving push rod |
| CN111817501B (en) * | 2020-07-13 | 2023-08-18 | 大连恒昇机械有限公司 | Vertical driving push rod |
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