CN215441083U - Anti-rebound structure, drainage device, positioning device and washing machine - Google Patents

Abstract

The utility model provides an anti-rebound structure, a drainage device, a positioning device and a washing machine, relates to the technical field and solves the technical problem that when an inner barrel is positioned on an external structure by a positioning mechanism, the inner barrel is easy to rebound, so that positioning is inaccurate. The anti-rebound structure comprises a first limiting assembly positioned on the inner barrel and a second limiting assembly positioned on the outer fixing part of the inner barrel, wherein the first limiting assembly and the second limiting assembly are in contact and generate force for limiting the reverse movement of the inner barrel when the positioning mechanism positions the inner barrel on the fixing part. When the positioning mechanism positions the rotating inner barrel on the fixing part, the first limiting component on the inner barrel is contacted with the second limiting component on the fixing part to generate a force for limiting the reverse motion of the inner barrel, so that the two parts of the positioning mechanism on the inner barrel and the fixing part are prevented from being in rigid contact, and the inner barrel rebounds reversely due to collision, so that the positioning mechanism is accurately positioned, and the smooth drainage of the inner barrel is facilitated.

Description

Anti-rebound structure, drainage device, positioning device and washing machine

Technical Field

The utility model relates to the technical field of washing machines, in particular to an anti-rebound structure, a drainage device, a positioning device and a washing machine.

Background

The clothes washing equipment is used as a common household appliance in daily life, and brings great convenience to the life of people. The traditional pulsator washing machine generally comprises an inner barrel and an outer barrel, wherein the inner barrel is used for washing, dewatering holes are formed in the inner barrel and used for dewatering, and the outer barrel is used for containing water. Therefore, water flows between the inner barrel and the outer barrel during washing, so that the area in front of the inner barrel and the outer barrel becomes a key area for storing dirt and dirt in the washing machine, and the user is difficult to clean the area due to the trouble of detaching the inner barrel, so that the area in front of the inner barrel and the outer barrel becomes a sanitary dead angle in the past, and the washed clothes can be attached with bacteria to cause the problem of cross infection.

The washing machine has no outer barrel and no wavy wheel, and has no outer barrel and no water draining port, water collecting unit outside the inner barrel, and outer sealing part, such as piston, to seal the water draining port. The plugging member is usually connected with a driving device to form a plugging mechanism, and the driving device separates the plugging member from the water outlet to drain the inner barrel when the inner barrel drains water. However, the inner tub is rotated during the dewatering process, and therefore the plugging means relies on the positioning means to position the inner tub with its outer structure during the above-mentioned draining process, so that the plugging means seals or disengages the drain opening.

The applicant has found that the prior art has at least the following technical problems: the common positioning mechanism comprises a first positioning component positioned on the inner barrel and a second positioning component positioned on an external fixed component (such as a shell of a washing machine or a water collecting device) of the inner barrel, and the first positioning component and the second positioning component are matched with each other to position and lock the inner barrel, so that the problem of rebounding of the inner barrel is easy to exist, namely the first positioning component and the second positioning component are in rigid contact to generate collision, the inner barrel and the first positioning component rebound towards the direction opposite to the rotating direction of the inner barrel, the positioning is inaccurate, and the plugging mechanism is difficult to accurately plug or separate from a water outlet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rebound prevention structure, a drainage device, a positioning device and a washing machine, and aims to solve the technical problem that when an inner barrel is positioned on an external structure by an existing positioning mechanism in the prior art, the inner barrel is easy to rebound, so that the positioning is inaccurate; the technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides an anti-rebound structure, which comprises a first limiting component positioned on an inner barrel and a second limiting component positioned on an outer fixing part of the inner barrel, wherein the first limiting component and the second limiting component can be contacted when a positioning mechanism positions the inner barrel on the fixing part and generate force for limiting the reverse movement of the inner barrel.

Preferably, the first limit component and the second limit component are connected and/or abutted in a magnetic adsorption manner when the positioning mechanism positions the inner barrel on the fixing component.

Preferably, when the positioning mechanism locks and positions the inner barrel and the fixing component, the second limiting component is positioned in front of the first limiting component along the rotation direction of the inner barrel so as to adsorb the first limiting component; and/or the second limiting assembly is positioned behind the first limiting assembly so as to abut against the first limiting assembly.

Preferably, the positioning mechanism comprises a first positioning assembly positioned on the inner barrel and a second positioning assembly positioned on the fixing component;

the first limiting assembly comprises a first magnetic part, the second limiting assembly comprises a second magnetic part capable of being adsorbed by the first magnetic part, and the first magnetic part and the second magnetic part are respectively positioned on the end faces of the first positioning assembly and the second positioning assembly, which are in mutual contact.

Preferably, the first limiting assembly further comprises a first elastic pad, the second limiting assembly further comprises a second elastic pad, and the first elastic pad is in contact with the second elastic pad to prevent the first magnetic member from being in rigid contact with the second magnetic member.

Preferably, the first elastic pad is used for protruding the end face contacted with the second elastic pad from the end face contacted with the first magnetic member, and/or the second elastic pad is used for protruding the end face contacted with the first elastic pad from the end face contacted with the second magnetic member, and/or the second elastic pad is used for protruding the end face contacted with the second elastic pad from the end face contacted with the first magnetic member.

Preferably, the first limiting component comprises a bracket, a stop lever and a blocking part, wherein:

the stop lever is rotatably arranged on the bracket, and the blocking part is positioned on the bracket and lower than the stop lever rotating shaft and abuts against the stop lever; the stop lever can be pushed to a position separated from the blocking part by the second limiting component when the inner barrel rotates, and the rotating shaft is clamped and fixed by the matching structure of the second limiting component and the blocking part.

Preferably, the blocking part is a stop block, the stop block abuts against the upper part of the stop lever, and the free end of the stop lever is lower than the second limiting component before contacting with the second limiting component.

Preferably, the second limiting assembly comprises a blocking piece, the blocking piece comprises a vertical section and a horizontal section connected with the fixing component, and the vertical section is located at one end of the horizontal section and extends towards the inner barrel to abut against the blocking rod.

The utility model also provides a drainage device, which comprises an inner barrel, a water collecting device positioned outside the inner barrel, a positioning mechanism positioned at the matching position of the inner barrel and the water collecting device and the anti-rebound structure; the positioning mechanism can position the water outlet of the inner barrel on the water collecting device to open the water outlet, the first limiting component is positioned on the inner barrel, and the second limiting component is positioned on the water collecting device.

The utility model also provides a positioning device, which comprises a positioning mechanism and the anti-rebound structure, wherein the positioning mechanism is positioned at the matching position of the inner barrel and the fixing component, and the positioning mechanism is used for positioning the inner barrel on the fixing component.

The utility model also provides a washing machine which is characterized by comprising an inner barrel and the positioning device.

Compared with the prior art, the utility model has the following beneficial effects:

according to the rebounding prevention structure provided by the utility model, when the rotating inner barrel is positioned on the fixed part by the positioning mechanism, the first limiting component on the inner barrel is contacted with the second limiting component on the fixed part to generate a force for limiting the reverse motion of the inner barrel, so that the two parts of the positioning mechanism on the inner barrel and the fixed part are prevented from being in rigid contact, and the inner barrel rebounds reversely due to collision, so that the positioning mechanism is accurately positioned, and the smooth drainage of the inner barrel is facilitated. According to the drainage device provided by the utility model, the first limiting component is arranged on the inner barrel, the second limiting component is arranged on the water collecting device, and the first limiting component is matched with the second limiting component, so that the positioning mechanism can be conveniently and accurately positioned, and the inner barrel can be conveniently and smoothly drained to the water collecting device. The positioning device and the washing machine provided by the utility model have the anti-rebound structure, so that two parts of the positioning mechanism positioned on the inner barrel and the fixed part can be prevented from being in rigid contact, the reverse rebound of the inner barrel is prevented, the positioning mechanism is accurately positioned, and the inner barrel can be conveniently and smoothly drained to an external water collecting device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a pulsator washing machine without an outer tub;

FIG. 2 is a schematic view of the piston structure and the positioning and ejecting structure cooperating to normally close the water outlet;

FIG. 3 is a schematic view showing the state that the piston structure and the positioning and ejecting structure are matched to open the water outlet;

FIG. 4 is a schematic view of the first positioning assembly cooperating with the second positioning assembly;

FIG. 5 is a schematic structural view of a first embodiment of an antirebound structure of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic structural view of a second embodiment of an antirebound structure of the present invention;

FIG. 8 is a schematic view of the first positioning assembly, the second positioning assembly and the anti-rebound structure in cooperation;

FIG. 9 is a schematic view of a second embodiment of an antirebound structure of the present invention in a first state;

FIG. 10 is a schematic view of a second embodiment of an antirebound structure of the present invention in a second state;

FIG. 11 is a schematic view of a second embodiment of an antirebound structure of the present invention in a third state;

fig. 12 is a fourth state diagram of the second embodiment of the antirebound structure of the present invention.

In the figure 1, a water pan; 2. a motor; 3. an impeller; 4. an inner barrel; 5. a balance ring; 6. a fixed block; 7. a piston structure; 71. a piston cap; 72. a rubber pad; 73. a compression spring; 75. a fixed mount; 76. a contact block; 8. positioning an ejection structure; 81. ejecting the shaft; 82. an arc-shaped plate; 83. controlling the driving mechanism; 9. an anti-rebound structure; 91. a first magnetic member; 92. a second magnetic member; 931. a first elastic pad; 932. a second elastic pad; 94. a support; 95. a stop lever; 96. a stopper; 97. a second limiting component; 971. a vertical section; 972. a horizontal segment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the utility model provides a rebound prevention structure, a drainage device and a washing machine, which can prevent an inner barrel from rebounding reversely when a positioning mechanism positions the inner barrel on a fixed component.

The technical solution provided by the present invention is explained in more detail below with reference to fig. 1 to 12.

As shown in fig. 5-12, the embodiment of the present invention provides a springback prevention structure, which comprises a first position-limiting component on the inner barrel 4 and a second position-limiting component 97 on the outer fixing part of the inner barrel, wherein the first position-limiting component is rotatably disposed with the inner barrel, and the first position-limiting component and the second position-limiting component 97 can contact each other and generate a force for limiting the reverse movement of the inner barrel when the positioning mechanism positions the inner barrel on the fixing part.

Wherein, the above-mentioned "reverse" refers to the direction opposite to the rotation direction of the inner tub, as shown in fig. 8, the rotation direction of the inner tub is clockwise, and the "reverse" refers to the counterclockwise direction; if the rotation direction of the inner tub is counterclockwise, the "reverse" means a clockwise direction.

The structure 9 of preventing kick-backing of this embodiment, when positioning mechanism will the interior bucket of pivoted be located fixed part on, the first spacing subassembly that is located on the bucket contacts and produces the power of restricting interior bucket reverse motion with the spacing subassembly 97 of second that is located fixed part, prevents that positioning mechanism's two parts rigidity that are located on interior bucket and fixed part from contacting, makes positioning mechanism location accurate because the collision makes the reverse kick-backing of bucket in the messenger to in the bucket drainage smoothly to outside water collecting device.

The positioning mechanism generally includes a first positioning assembly located on the inner tub 4 and a second positioning assembly located on an external fixing component (such as a casing of the washing machine or a water collecting device) of the inner tub 4, and when the first positioning assembly and the second positioning assembly are matched to position and lock the inner tub 4, the driving device separates the blocking component from the water outlet to drain the inner tub. The positioning mechanism is provided with various forms on the washing machine, such as a positioning rod driven by a driving device, a matching groove positioned on an inner barrel and the like.

Whether the plugging part and the water outlet can be smoothly opened depends on the positioning mechanism, and the positioning device brings corresponding cost.

Example 1

The anti-rebounding structure 9 in this embodiment can be used to prevent rebounding of the inner barrel 4 constructed by the positioning machine, or be applied to positioning mechanisms of other existing structures to prevent rebounding thereof, which is not described herein.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a pulsator washing machine without an outer tub, a balance ring 5 is disposed on an inner tub, a pulsator 3 in the inner tub 4 is driven to rotate by a motor 2, a water outlet is disposed at the bottom of the inner tub 4, a piston structure 7 (equivalent to a first positioning component) for blocking the water outlet is disposed at the position of the water outlet, a positioning ejection structure 8 (equivalent to a second positioning component) for opening the water outlet is disposed at the position of a water receiving tray 1 corresponding to the water outlet, the water outlet is blocked during washing, rinsing and dewatering processes, the water outlet can be opened by the positioning ejection structure 8 during a water discharging process, and water in the inner tub is discharged into a water collecting device outside the inner tub, which is the water receiving tray 1 as shown in fig. 1.

The piston structure 7 and the positioning ejection structure 8 jointly form a positioning mechanism, and the specific structure is as follows: referring to fig. 2 and 3, the piston structure 7 includes a fixing frame 75, a piston cover 71, a compression spring 73, and a contact block 76, wherein: the fixing frame 75 is arranged at the bottom of the inner barrel, the fixing frame 75 is provided with an accommodating cavity for accommodating the lower part of the piston cover 71 and the compression spring 73, the lower part of the piston cover 71 fixed on the inner barrel penetrates through the fixing frame 75 to extend into the accommodating cavity, and the lower end of the piston cover 71 is also fixed with a contact block 76; the two ends of the compression spring 73 respectively abut against the top wall of the accommodating cavity and the contact block 76 and are in a compressed state at the initial position; a rubber pad 72 is arranged between the upper end of the fixed frame 75 and the piston cover 71, and the rubber pad 72 is extruded between the fixed frame 75 and the piston cover 71 to seal the water outlet.

Referring to fig. 2 and 3, the positioning and ejecting structure 8 includes: the ejection mechanism comprises a control driving mechanism 83 with an ejection shaft 81 and a profiling stop positioning structure, wherein the profiling stop positioning structure is an arc-shaped plate 82, and the arc-shaped plate 82 is fixed on the ejection shaft 81 and can ascend to the position of the fixed frame 75 when extending out along with the ejection shaft 81. Fig. 2 and 3 are schematic diagrams respectively showing the piston structure 7 and the positioning ejection structure 8 in a state of enabling the water outlet to be normally closed and opened.

Referring to fig. 2-4, the arrow direction is the inner barrel rotation direction, when the piston structure 7 rotates with the inner barrel to the position corresponding to the positioning and ejecting structure 8, the arc plate 82 is ejected to limit the movement of the fixing frame 75, the inner barrel 4 is positioned at the position, and as the ejecting shaft 81 continues to eject, the ejecting shaft 81 pushes the contact block 76, so that the compression spring 73 continues to compress, the piston cover 71 rises and leaves the rubber pad 72, and the water outlet is opened, as shown in fig. 3.

The positioning mechanism is provided with a piston structure 7 and a positioning ejection structure 8, can open or close the water outlet while positioning the inner barrel 4, saves cost and has compact structure. The initial state of the piston structure 7 is a normally closed state, so that the positioning ejection mechanism realizes that the normally closed state of the piston is changed into an opening state. When the piston structure 7 is in contact with the positioning ejection mechanism structure, the rigid contact can generate rebound, so that inaccurate positioning is caused, and the piston structure 7 is difficult to normally open the water outlet.

The anti-rebounding structure 9 in this embodiment may be applied to the positioning mechanism formed by the piston structure 7 (first positioning component) and the positioning ejection structure 8 (second positioning component) in a matching manner, and as an optional implementation manner, the first limiting component and the second limiting component 97 are connected and/or abutted by magnetic attraction when the positioning mechanism positions the inner barrel on the fixing component.

The first limiting piece and the second limiting piece can be respectively arranged on the piston structure 7 and the positioning ejection structure 8; or is arranged at the corresponding position of the inner barrel and the water pan 1; or arranged at the corresponding position of the inner barrel and the shell.

Specifically, when the positioning mechanism locks and positions the inner barrel and the fixing component, the second limiting component 97 is positioned in front of the first limiting component along the rotation direction of the inner barrel so as to adsorb the first limiting component; and/or the second stop assembly 97 is located rearward of the first stop assembly to abut against the first stop assembly.

The magnetic adsorption mode can generate adsorption force between the first limiting assembly and the second limiting assembly 97 to adsorb the inner barrel and prevent the inner barrel from rebounding reversely; the above-mentioned both modes of leaning against can make second spacing subassembly 97 produce the power that supports and push away first spacing subassembly, prevent that the interior bucket is reverse kick-back. The two modes can both play a good anti-rebound effect.

Two embodiments of antirebound structure 9 are detailed below, see examples 2 and 3.

Example 2

Referring to fig. 5 and 6, the positioning mechanism includes a first positioning component located on the inner barrel and a second positioning component located on the fixing component, the first positioning component is the piston structure 7, the second positioning component is the positioning ejection structure 8, or the first positioning component and the second positioning component are other structures capable of adapting, such as a positioning rod and a matching groove for driving the driving device.

The first limiting assembly comprises a first magnetic piece 91, the second limiting assembly 97 comprises a second magnetic piece 92 capable of being attracted to the first magnetic piece 91, and the first magnetic piece 91 and the second magnetic piece 92 are respectively located on end faces of the first positioning assembly and the second positioning assembly, wherein the end faces of the first positioning assembly and the end faces of the second positioning assembly are used for being in contact with each other.

Specifically, on the basis of the above embodiment 1, the first magnetic member 91 is disposed at a position corresponding to the outer wall of the fixing frame 75 and the arc plate 82, the second magnetic member 92 is disposed at a side of the arc plate 82 facing the fixing frame 75, the first magnetic member 91 and the second magnetic member 92 can be magnet blocks with opposite magnetism, and the resilience force generated by collision is smaller than the attraction force between the two magnets by using the principle of magnetic attraction, so as to tightly limit the approaching piston structure 7 (first positioning component) and the positioning ejection mechanism (second positioning component) together, and prevent the fixing frame 75 on the inner barrel 4 from rebounding reversely when the arc plate 82 collides with the fixing frame 75.

As an alternative embodiment, referring to fig. 5 and 6, the first limiting assembly further includes a first elastic pad 931, the second limiting assembly 97 further includes a second elastic pad 932, and the first elastic pad 931 and the second elastic pad 932 are in contact to prevent the first magnetic element 91 and the second magnetic element 92 from being in rigid contact.

The first and second elastic pads 931 and 932 are rubber pads 72, and can reduce the impact and change the rigid contact to the elastic contact.

As an alternative embodiment, referring to fig. 5 and 6, an end surface of the first elastic pad 931, which is used for contacting with the second elastic pad 932, protrudes from an end surface of the first magnetic member 91, which is used for attracting with the second magnetic member 92, and/or an end surface of the second elastic pad 932, which is used for contacting with the first elastic pad 931, protrudes from an end surface of the second magnetic member 92, which is used for attracting with the first magnetic member 91.

Referring to fig. 5 and 6, when the fixed frame 75 is in contact with the arc plate 82, the first magnetic member 91 and the second magnetic member 92 are not in contact and can also generate an attraction force by elastically contacting the first elastic pad 931 and the second elastic pad 932.

In the embodiment, the elastic pad and the magnetic part are arranged at the mutual contact position of the first positioning assembly and the second positioning assembly, and the rebound of the inner barrel can be effectively prevented by utilizing the principles of magnetic adsorption and elastic contact.

Example 3

The structure of this embodiment is different from that of the above-mentioned embodiment, referring to fig. 7-12, the first limiting component of the anti-rebound structure 9 of this embodiment includes a bracket 94, a stop rod 95 and a blocking part (the blocking part is a stop 96), wherein: the bracket 94 is fixed at the bottom of the inner barrel, the stop lever 95 is rotatably arranged on the bracket 94, and the blocking part is positioned on the bracket 94 and is lower than the rotating shaft of the stop lever 95 and abuts against the stop lever 95; the stop lever 95 can cross the second limit component 97 when the inner barrel rotates, and the second limit component 97 is fixed with the rotating shaft in a clamping way with the matching structure of the blocking part.

Above-mentioned first spacing subassembly can pass through the spacing subassembly of second smoothly, and the cooperation structure of first spacing subassembly and the spacing subassembly of second supports and pushes away interior bucket, prevents interior bucket resilience.

Specifically, referring to fig. 9 to 12, when the inner barrel rotates, the blocking rod 95 can be pushed up to a position separated from the blocking portion by the second limiting component 97 and can fall into the front of the second limiting component 97, and the second limiting component 97 and the blocking portion are engaged with each other to fix the rotating shaft. Wherein, the front refers to the front along the rotation direction of the inner tub.

Preferably, the upper end of the blocking rod 95 is rotatably connected to the bracket 94 through a rotating shaft, and the lower end is a free end capable of rotating around the rotating shaft.

The above-mentioned structure 9 of preventing kick-back, wherein, the pin 95 in the first spacing subassembly is through the rotatable setting of pivot on support 94 for when not needing positioning mechanism to fix a position the interior bucket, the motion of first spacing subassembly can not be restricted to second spacing subassembly 97. In the same direction as interior bucket rotation direction, the stop part is located the front side of pin 95, and spacing subassembly 97 of second is located the rear side of pin 95, and both are fixed with pin 95 block by both sides around pin 95 respectively, give interior bucket through pin 95 with thrust, prevent interior bucket 4 reverse resilience.

As an alternative embodiment, referring to fig. 9-12, the stopping portion is a stopper 96, the stopper 96 abuts against the upper portion of the stop rod 95, and the lower end of the stop rod 95 is lower than the second limiting member 97 before contacting the second limiting member 97.

The stopper 96 is used for lifting the stop lever 95 to a certain angle, so that the stop lever 95 can conveniently move along with the inner barrel to pass over the second limiting assembly 97; secondly, when the inner barrel 4 has a tendency of reverse rebounding, the second limiting component 97 pushes the stop rod 95 from the rear side of the stop rod 95 to prevent the rebound, and the stop 96 is positioned at the front side of the stop rod 95 to prevent the stop rod 95 from continuously rotating due to the rotatable arrangement of the stop rod 95; as shown in fig. 8, when the inner barrel 4 rotates clockwise, the stopper 96 serves to prevent the lever 95 located between the stopper 96 and the second stopper member 97 from further rotating clockwise; when the inner barrel rotates counterclockwise, the stopper 96 serves to prevent the stopper rod 95 located between the stopper 96 and the second stopper assembly 97 from continuing to rotate counterclockwise.

As an alternative embodiment, referring to fig. 9-12, the second limiting member 97 includes a blocking plate, and the blocking plate includes a vertical section 971 and a horizontal section 972 for connecting with the fixing member, and the vertical section 971 is located at one end of the horizontal section 972 and extends toward the inner barrel to abut against the blocking rod 95.

The fixing component in this embodiment can be any fixing component in the water collecting device or the casing, the first limiting component can be arranged at the bottom of the inner barrel outside the positioning mechanism, but it should be satisfied that when the first positioning component on the inner barrel is matched with the second positioning component on the fixing component to position the inner barrel, the stop lever 95 can be fixed by the block 96 and the block piece, and the reverse resilience of the inner barrel is limited.

The anti-rebound structure 9 in this embodiment also takes the positioning mechanism in embodiment 1 as an example to specifically describe the working process: referring to fig. 8, the holder 94 rotates with the inner barrel; referring to fig. 9 and 10, the carriage 94 is moved to a position adjacent the flap; referring to fig. 11, the bracket 94 moves above the blocking piece, and the bracket 94 smoothly passes through the top end of the vertical section 971 of the blocking piece, and the blocking rod 95 is jacked up by the vertical section 971; as shown in fig. 12, when the blocking rod 95 passes through the blocking piece, due to the action of gravity, the free end (lower end) of the blocking rod 95 falls to the front side of the blocking piece, specifically, falls into the intersection position of the vertical section 971 and the horizontal section 972 of the blocking piece, at this time, the piston structure 7 contacts with the positioning ejection structure 8 and rebounds, and due to the fact that the free end of the blocking piece is pushed by the vertical section 971 of the blocking piece, the piston structure 7 can be prevented from rebounding.

Preferably, as shown in fig. 8, the baffle in this embodiment is fixed to the water collection device by a horizontal segment 972.

Example 4

The embodiment provides a drainage device, referring to fig. 1, comprising an inner barrel 4, a water collecting device positioned outside the inner barrel 4, a positioning mechanism positioned at the matching position of the inner barrel 4 and the water collecting device, and the anti-rebound structure 9; the positioning mechanism can position the water outlet of the inner barrel on the water collecting device so as to open the water outlet, the first limiting component is positioned on the inner barrel, and the second limiting component 97 is positioned on the water collecting device.

Wherein, the water collecting device is a water receiving tray 1, and the positioning mechanism is the positioning mechanism in the embodiment 1. Referring to fig. 1-4, the positioning mechanism has a piston structure 7 and a positioning ejection structure 8, and can open or close the water outlet while positioning the inner barrel, thereby saving cost and having a compact structure.

The drainage device in this embodiment, including above-mentioned springback prevention mechanism, owing to set up first spacing subassembly on interior bucket, set up second spacing subassembly 97 on water collecting device, first spacing subassembly and the cooperation of second spacing subassembly 97, the positioning mechanism location of being convenient for is accurate, and interior bucket of being convenient for drains water to water collecting device smoothly.

Example 5

The embodiment provides a positioning device, which comprises a positioning mechanism and the anti-rebound structure 9, wherein the positioning mechanism is positioned at the matching position of an inner barrel 4 and a fixed part, and the positioning mechanism is used for positioning the inner barrel on the fixed part.

The fixing component is a water collecting device or any fixing component which is not rotated along with the inner barrel in the shell.

The anti-rebound structure 9 can be applied to positioning mechanisms of other structural forms besides the drainage device described above. If drive equipment's locating lever and the cooperation groove that is located interior bucket, the locating lever can insert to the cooperation groove in, prevents that rebound structure 9 from preventing both contacts to take place reverse resilience.

Example 6

Referring to fig. 1, the present embodiment provides a washing machine including an inner tub and the above-mentioned positioning device. Specifically, the washing machine is an impeller washing machine without an outer barrel and comprising an inner barrel.

The washing machine in the embodiment is provided with the positioning device, so that two parts of the positioning mechanism, which are positioned on the inner barrel and the fixed component, can be prevented from being in rigid contact, the inner barrel is prevented from rebounding reversely, the positioning mechanism is accurately positioned, and the inner barrel can be conveniently and smoothly drained to the external water collecting device.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (12)

1. An anti-rebound structure is characterized by comprising a first limiting assembly positioned on an inner barrel and a second limiting assembly positioned on an outer fixing component of the inner barrel, wherein the first limiting assembly and the second limiting assembly are contacted when a positioning mechanism positions the inner barrel on the fixing component and generate force for limiting reverse movement of the inner barrel.

2. The anti-rebounding structure according to claim 1, wherein the first limiting component and the second limiting component are magnetically and/or adsorptively connected and/or abutted when the positioning mechanism positions the inner barrel on the fixing component.

3. The structure of claim 1, wherein the positioning mechanism locks the inner barrel and the fixing member in position, and the second position-limiting component is located in front of the first position-limiting component along the rotation direction of the inner barrel to absorb the first position-limiting component; and/or the second limiting assembly is positioned behind the first limiting assembly so as to abut against the first limiting assembly.

4. The structure of any one of claims 1 to 3, wherein the positioning mechanism comprises a first positioning assembly on the inner barrel and a second positioning assembly on the fixing member;

the first limiting assembly comprises a first magnetic part, the second limiting assembly comprises a second magnetic part capable of being adsorbed by the first magnetic part, and the first magnetic part and the second magnetic part are respectively positioned on the end faces of the first positioning assembly and the second positioning assembly, which are in mutual contact.

5. The antirebound structure of claim 4 wherein the first stop assembly further comprises a first resilient pad, and the second stop assembly further comprises a second resilient pad, the first and second resilient pads being in contact to prevent rigid contact of the first and second magnetic members.

6. The structure of claim 5, wherein an end surface of the first elastic pad contacting the second elastic pad protrudes from an end surface of the first magnetic member for attracting the second magnetic member, and/or an end surface of the second elastic pad contacting the first elastic pad protrudes from an end surface of the second magnetic member for attracting the first magnetic member.

7. The antirebound structure of any one of claims 1-3 wherein the first stop assembly comprises a bracket, a bar, and a stop, wherein:

the stop lever is rotatably arranged on the bracket, and the blocking part is positioned on the bracket and lower than the stop lever rotating shaft and abuts against the stop lever; the stop lever can be pushed to a position separated from the blocking part by the second limiting component when the inner barrel rotates, and the rotating shaft is clamped and fixed by the matching structure of the second limiting component and the blocking part.

8. The structure of claim 7, wherein the stop is a stop that abuts an upper portion of the bar, and a free end of the bar is lower than the second stop assembly before contacting the second stop assembly.

9. The structure of claim 7, wherein the second limiting assembly comprises a stopper, the stopper comprises a vertical section and a horizontal section for connecting with the fixing member, and the vertical section is located at one end of the horizontal section and extends toward the inner barrel for abutting against the stopper.

10. A drainage device, comprising an inner barrel, a water collecting device positioned outside the inner barrel, a positioning mechanism positioned at the matching position of the inner barrel and the water collecting device, and an anti-rebound structure as set forth in any one of claims 1-9; the positioning mechanism can position the water outlet of the inner barrel on the water collecting device to open the water outlet, the first limiting component is positioned on the inner barrel, and the second limiting component is positioned on the water collecting device.

11. A positioning device, comprising a positioning mechanism at a position where an inner barrel is engaged with a fixing member, and the anti-rebounding structure of any one of claims 1-9, wherein the positioning mechanism is used for positioning the inner barrel on the fixing member.

12. A washing machine comprising an inner tub and the positioning device of claim 11.

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