A deceleration clutch device of a washing machine and a washing machine

Abstract

The application discloses a speed reduction clutch device of a washing machine and the washing machine, which comprises a speed reducer provided with a brake arm, a drainage motor connected with one end of a traction rope, a connecting arm with opposite two ends being a fixed part and a connecting part respectively, the fixed part being connected with the other end of the traction rope, and the connecting part being used for connecting the brake arm, the connecting part being provided with a plug-in interface for the end of the brake arm to pass through, and the plug-in interface being provided with a buckle mounting part detachably connected with the brake arm. Through the above design, the connecting arm of the application omits the fixing pin in the prior art, avoids the operation of penetrating the pin and pressing the rivet, and can quickly disassemble and assemble the brake arm through the buckle mounting part, so that the operation of disassembling and assembling the brake arm is more convenient and fast.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically, it relates to a washing machine and its deceleration clutch device. Background Technology

[0002] In the prior art, the brake arm 2 on the reducer 1 of the washing machine and the connecting arm 4 of the drain motor 3 are connected by a fixing pin 42. It requires manual insertion of the pin and then manual use of tools to press and rivet the fixing pin to fix it. The installation and connection process is time-consuming and labor-intensive.

[0003] like Figure 1 The diagram shows the structure of connecting arm 4 in the prior art; the assembly method of connecting arm 4 in the prior art is as follows: Figure 2 As shown, the retaining pin 42 needs to be manually inserted into the through hole 43 of the connecting arm 4 and the brake arm 2, and then the retaining pin 42 needs to be manually pressed and riveted with a tool to fix the connecting arm 4 and the brake arm 2. After assembly, the connecting arm 4 and the brake arm 2 are as follows: Figure 3 As shown, the existing assembly process of the connecting arm and brake arm is time-consuming and requires manual use of tools to rivet and fix the pin 42, which is complicated.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a deceleration clutch device for a washing machine. The present invention aims to solve the problems of long assembly time and complicated operation of the connecting arm and brake arm in the prior art.

[0006] To solve the above-mentioned technical problems, the first aspect of this application discloses a deceleration clutch device for a washing machine, including: a reducer with a brake arm; a drain motor connected to one end of a traction rope; a connecting arm with a fixed part and a connecting part at opposite ends, the fixed part being connected to the other end of the traction rope, and the connecting part being used to connect to the brake arm; the connecting part having an insertion interface for the end of the brake arm to pass through, and the insertion interface having a snap-fit ​​mounting part that is detachably connected to the brake arm.

[0007] Through the above design, the connecting arm of the present invention omits the fixing pin of the prior art, avoids the operation of pin insertion and riveting, and can quickly disassemble and assemble the brake arm through the snap-fit ​​mounting part, making the operation of disassembling and assembling the brake arm simpler and faster.

[0008] Furthermore, the connector is composed of a rectangular through-hole formed by four side walls. The snap-fit ​​mounting part is located within the rectangular through-hole and is used to snap and fix the brake arm portion passing through the connector. The connecting post and the compression spring of the snap-fit ​​mounting part are respectively located in the middle of the opposite side walls of the rectangular through-hole and extend in a corresponding direction to overlap or approach each other. Through the above design, the connector structure of the present invention is simple and easy to process and form. The snap-fit ​​mounting part is located within the rectangular through-hole, making the connecting arm structure more compact and stable.

[0009] Furthermore, the brake arm is a rod-shaped structure, and the end of the rod-shaped brake arm is provided with a radially widened anti-detachment protrusion. The radial dimension of the anti-detachment protrusion is less than or equal to the maximum distance between the extended end of the connecting post and the inner wall of the insertion interface, so that the brake arm can be detachably assembled with the connecting arm. The middle part of the brake arm, the part corresponding to the insertion interface, is provided with a through opening, which constitutes a connection port for the connecting post to be inserted.

[0010] Furthermore, the snap-fit ​​mounting part includes a connecting post, which is disposed within the insertion interface and protrudes radially from one side of the inner wall of the insertion interface to the opposite side; the brake arm is provided with a connecting port for the corresponding insertion of the connecting post. Through the above design, using a connecting post to fix the brake arm eliminates the need for a through-hole and fixing pin on the connecting arm. The connecting port of the brake arm is fixed in conjunction with the connecting post, making operation simpler; compared to providing a through-hole on the connecting arm, the connecting post can increase the structural strength of the connecting arm.

[0011] Furthermore, the snap-fit ​​mounting part also includes a compression spring, which is disposed within the insertion interface and protrudes radially inward from the inner wall of the insertion interface on the side opposite to the connecting post. The extended end of the compression spring overlaps with the extended end of the connecting post. The compression spring is made of a material capable of elastic deformation, and the elastic deformation of the compression spring itself can increase the distance between the extended end of the compression spring and the extended end of the connecting post. Through the above design, the compression spring has a simple structure and is easy to process and form. The snap-fit ​​mounting part formed by the compression spring and the connecting post makes it easier to disassemble and assemble the brake arm. The increased distance between the compression spring and the extended end of the connecting post facilitates the brake arm to pass through the distance, making disassembly and assembly easier.

[0012] Furthermore, the compression spring is curved along its extension direction, with the end of the compression spring connected to the insertion interface closer to the brake arm insertion side relative to the extension end; the extension end of the compression spring contacts the extension end of the connecting post away from the brake arm insertion side. Through this design, the compression spring is curved along its extension direction, increasing its structural strength. The fact that the extension end of the compression spring contacts the extension end of the connecting post away from the brake arm insertion side allows the brake arm to be gradually guided through the space between the extension end of the compression spring and the extension end of the connecting post.

[0013] Furthermore, the connecting post has a gradually decreasing radial width along its extension direction from the end connected to the insertion interface towards the extension end. This design, where the connecting post has a gradually decreasing radial width along its extension direction from the end connected to the insertion interface towards the extension end, facilitates assembly of the brake arm's connection port with the connecting post, improving installation speed.

[0014] Furthermore, the radial width of the compression spring gradually narrows from the end connected to the insertion interface towards the extended end along the extension direction, and the radial width of the extended end of the compression spring is greater than or equal to the radial width of the connecting post. Through this design, the radial width of the extended end of the compression spring is greater than or equal to the radial width of the connecting post, which allows the compression spring to better stabilize the brake arm and facilitates operation of the compression spring when disassembling the brake arm.

[0015] Furthermore, the connecting post has an inclined guide surface on the side facing the insertion direction of the brake arm. The guide surface gradually slopes away from the insertion direction of the brake arm from the end connected to the insertion interface towards the extension end. This design facilitates the machining of the guide surface. On the one hand, the guide surface guides the brake arm to move into the insertion interface; on the other hand, it cooperates with the extension end of the compression spring, increasing the distance between the extension end of the compression spring and the extension end of the connecting post.

[0016] Furthermore, the end of the connecting post is provided with a bent portion extending away from the insertion direction of the insertion interface. Through this design, the bent portion prevents the brake arm from detaching from the connecting post, and the length of the bent portion can be designed based on the actual measured vibration movement distance of the brake arm.

[0017] A second aspect of this application also provides a washing machine, including a deceleration clutch device for a washing machine as described above.

[0018] Through the above design, the present invention provides a washing machine with a simple structure that facilitates the disassembly and assembly of the brake arm and the connecting arm.

[0019] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0020] 1. The present invention adopts an improved connecting arm, which has a simple structure and is easy to process; it eliminates the need for fixing pins and the operation of pressing and riveting fixing pins, making the assembly process of the connecting arm and the brake arm simpler and more convenient.

[0021] 2. The mounting part in the connecting arm connector of the present invention has a simple structure and is easy to process and form. The mounting part is used to connect and fix the brake arm, making it convenient to assemble and disassemble the brake arm.

[0022] 3. The present invention completes the connection and fixation of the brake arm by the cooperation of the extrusion spring and the connecting column, without the need for other connecting parts, making the connecting arm structure compact, eliminating the problem of missing parts, and making it convenient to assemble and disassemble the brake arm.

[0023] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of a connecting arm structure in the prior art;

[0026] Figure 2 This is a schematic diagram of the assembly structure of the connecting arm and brake arm of a deceleration clutch device in the prior art;

[0027] Figure 3 This is a schematic diagram of the structure of a deceleration clutch device after the assembly of the connecting arm and the brake arm in the prior art;

[0028] Figure 4 This is a schematic diagram of the connecting arm structure in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the deceleration clutch device in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the assembly structure of the connecting arm and the brake arm of the deceleration clutch device in an embodiment of the present invention;

[0031] Figure 7 This is an embodiment of the present invention. Figure 6 A magnified structural diagram at point A;

[0032] Figure 8 This is a schematic diagram of the structure of the deceleration clutch device after assembling the connecting arm and the brake arm in an embodiment of the present invention;

[0033] Figure 9 This is an embodiment of the present invention. Figure 8 A magnified structural diagram at point B.

[0034] The main components in the diagram are described as follows: 1. Reducer; 2. Brake arm; 3. Drainage motor; 4. Connecting arm; 5. Traction rope; 40. Fixing part; 41. Connecting part; 42. Fixing pin; 43. Through hole; 44. Connecting port; 45. Anti-falling protrusion; 410. Insertion interface; 411. Mounting part; 412. Compression spring; 413. Connecting column; 414. Guide surface; 415. Guide space.

[0035] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] The present invention will be further described in detail below with reference to the embodiments.

[0040] like Figures 4 to 9 As shown in the figure, a deceleration clutch device for a washing machine provided in an embodiment of the present invention includes: a reducer 1 with a brake arm 2; a drain motor 3 connected to one end of a traction rope; and a connecting arm 4 including a fixing part 40, one end of which is connected to the other end of the traction rope, and a connecting part 41 disposed at the other end of the fixing part 40 for connecting the brake arm 2; the connecting part 41 is a plug-in interface 410 with a cavity, and the plug-in interface 410 has a mounting part 411 that is detachably connected to the brake arm 2.

[0041] In an embodiment of the present invention, the reduction clutch device of the washing machine is located at the bottom of the outer tub of the washing machine. The installation positions of the reducer and the drain motor can be adjusted according to actual needs. In an embodiment of the present invention, the washing machine also includes a drive motor, which is directly or via a transmission structure connected to the reducer, so as to use the reducer 1 to drive the inner tub and / or impeller of the washing machine to rotate, thereby achieving the purpose of the washing machine performing its work. At the same time, in an embodiment of the present invention, the drain motor 3 of the washing machine needs to be connected to the brake arm 2 of the reducer 1 via a traction rope 5, so as to control the brake arm 2 to lock the rotating shaft inside the reducer 1, thereby achieving the purpose of stopping the inner tub and / or impeller of the washing machine; however, due to the limitations of the installation position and structure of the traction rope 5 and the brake arm 2, a connecting arm 4 needs to be added. The drain motor 3 is connected to the brake arm 2 by the connecting arm 4, specifically as follows: after the connecting part 41 of the connecting arm 4 is connected and fixed to one end of the brake arm 2, the other end of the traction rope 5 is connected to the fixing part 40 of the connecting arm 4, thereby realizing that the traction rope 5 pulls the brake arm 2 to move, thereby realizing the braking control of the reducer 1 by the drain motor 3.

[0042] In an embodiment of the present invention, the other end of the traction rope 5 may be provided with a locking post. The fixing part 40 of the connecting arm 4 is provided with a mounting part that cooperates with the locking post. The mounting part includes a sliding groove extending from one end of the fixing part 40 to the end where the connecting part 41 is located; and a mounting hole provided at the end of the sliding groove near the connecting part. Preferably, the sliding groove extends to the connecting part 41. The diameter of the mounting hole is smaller than the diameter of the locking post. When installing the traction rope 5 and the connecting arm 4, the traction rope 5 is placed in the sliding groove, and the locking post is moved to the mounting hole, so that the locking post is engaged with the end face of the mounting hole. The traction rope 5 pulls the connecting arm 4, and the connecting arm 4 is fixed to the end of the brake arm 2, so that the traction rope 5, the connecting arm 4 and the brake arm 2 are always in a taut state, and the locking post will not easily disengage from the mounting hole.

[0043] In an embodiment of the present invention, to further stabilize the locking post, one end face of the mounting hole can be recessed inward by a first step, the outer diameter of which can be equal to or slightly larger than the diameter of the locking post, so as to suppress circumferential shaking of the locking post.

[0044] In embodiments of the present invention, the connection method between the traction rope 5 and the fixing part 40 of the connecting arm 4 is not limited to the technical solution of the present invention. Other methods that can achieve the connection between the traction rope 5 and the connecting arm 4 can be applied to the present invention.

[0045] In embodiments of the present invention, the fixing part 40 and the connecting part 41 of the connecting arm 4 can be an integrally formed structure.

[0046] In embodiments of the present invention, the connecting arm 4 in the prior art is improved by designing a detachable connection method that allows the connecting arm 4 to be connected to the brake arm 2 without the use of a fixing pin; specifically as follows:

[0047] In an embodiment of the present invention, the connecting part 41 of the connecting arm 4 is provided with an insertion interface 410 for the end of the brake arm to pass through, and the insertion interface 410 is provided with a snap-fit ​​mounting part 411 that is detachably connected to the brake arm 2.

[0048] In an embodiment of the present invention, the insertion interface 410 is a rectangular through hole surrounded by four side walls.

[0049] In the embodiments of the present invention, the insertion interface 410 has a simple structure and can be formed by one-time injection molding. The insertion interface 410 is a rectangle formed by four side walls, and the top and bottom mold opening does not require a slanted ejector, making processing simpler and easier to form. This differs from the prior art where the insertion interface 410 has a mounting hole through which a fixing pin passes, requiring a slanted ejector design.

[0050] like Figure 4 As shown in the embodiment of the present invention, the snap-fit ​​mounting part 411 includes a compression spring 412 disposed on one side inside the insertion interface 410; a connecting post 413 disposed on the side inside the insertion interface 410 opposite to the compression spring 412; the brake arm 2 is provided with a connecting port that cooperates with the connecting post 413, so that the connecting post 413 is inserted into the connecting port, thereby realizing relative locking between the connecting arm and the brake arm in the brake arm insertion direction.

[0051] In the embodiments of the present invention, the snap-fit ​​mounting part 411 of the connecting arm 4 has a simple structure, and there is no need to set a mounting through hole for the fixing pin to pass through at the insertion interface, which increases the structural strength of the connecting arm 4, eliminates the fixing pin, and makes the connecting arm structure simpler and more compact. It is convenient to disassemble and assemble the brake arm 2, and there is no need to manually insert the pin and then rivet the fixing pin.

[0052] Figures 4 to 9 As shown, in an embodiment of the present invention, one end of the compression spring 412 is connected to the left side of the square insertion interface 410 and is located near the insertion end of the brake arm 2. The other end of the compression spring 412 extends into the insertion interface 410 to form an extension end.

[0053] In the embodiments of the present invention, the extrusion spring 412 has a simple structure and is easy to process.

[0054] like Figures 4 to 9As shown, in an embodiment of the present invention, the compression spring 412 has a curved surface shape that bends toward the side into which the brake arm is inserted. The concave surface of the compression spring 412 is disposed opposite to the connection between the compression spring 412 and the side wall of the insertion interface 410. The extended end of the compression spring 412 is in contact with or close to the extended end of the connecting post 413. Preferably, the distance between the extended end of the compression spring 412 and the extended end of the connecting post 413 is less than the radial dimension of the brake arm 2, so as to realize that when the brake arm is inserted into the connecting post, the compression spring 412 can be used to lock the brake arm and the connecting arm 4 in the radial direction.

[0055] In embodiments of the present invention, the compression spring 412 is designed in a curved shape, which helps to increase the elastic strength of the compression spring 412, facilitates the insertion of the brake arm, and provides better radial locking of the brake arm. The extended end of the compression spring 412 contacts the extended end of the connecting post 413, which can effectively prevent the brake arm 2 from detaching from the connecting post 413 after the brake arm 2 is connected to the connecting post 413; at the same time, when disassembling the brake arm 2, it is only necessary to pry open the extended end of the compression spring 412 and detach the connection port of the brake arm 2 from the connecting post 413, making the disassembly and assembly process simple and easy to operate.

[0056] like Figures 5 to 9 As shown, in an embodiment of the present invention, the connecting post 413 has a radial dimension that gradually narrows along the end connected to the insertion interface 410 toward the extended end of the insertion interface 410.

[0057] In embodiments of the present invention, the connecting post 413 and the connecting arm 4 constituting the insertion interface 410 can be integrally formed; the connecting post 413 gradually narrows its radial width into the insertion interface 410, which is beneficial for the assembly and insertion of the connecting port 44 of the brake arm 2 and the connecting post 413.

[0058] In the embodiments of the present invention, the structure of the connecting arm 4 and the shape of the connecting port 44 of the brake arm 2 are improved, so that the brake arm 2 can be inserted into the connecting arm 4, which saves time and effort.

[0059] In an embodiment of the present invention, the shape of the connection port 44 of the brake arm 2 matches the shape of the connecting post 413. As for the size of the connection port 44, it determines the position where the brake arm 2 is installed on the connecting post 413, and the design can be adjusted according to the actual situation.

[0060] In an embodiment of the present invention, in order to prevent accidental disengagement between the brake arm 2 and the connecting arm 4, a radially protruding anti-disengagement protrusion 45 is provided at the end of the brake arm 2. The radial dimension of the anti-disengagement protrusion 45 is less than or equal to the maximum distance between the extended end of the connecting post 413 and the inner wall of the insertion interface 410, so that the brake arm 2 can be detachably assembled with the connecting arm 4 and the accidental disengagement of the connecting arm can be prevented.

[0061] like Figures 6 to 9 As shown, in an embodiment of the present invention, a guide space 415 is formed between the end of the connecting post 413 and the convex surface of the compression spring 412 to guide the brake arm 2 into the insertion interface 410. The guide space 415 is used to guide the brake arm 2 into the insertion interface 410. The guide space 415 is ingeniously designed, has a simple structure, and is easy to implement.

[0062] In an embodiment of the present invention, the distance between the two sides of the guide space 415 gradually narrows along the insertion direction of the brake arm 2. By setting the guide space 415 to gradually shrink towards the insertion interface 410, the present invention facilitates the installation of the brake arm 2; at the same time, after the brake arm 2 is installed into the insertion interface 410, the guide space 415 compresses the brake arm 2, thereby restricting the movement of the brake arm 2.

[0063] In an embodiment of the present invention, the end of the connecting post 413 is provided with an inclined guide surface 414, and the guide surface 414 and the convex surface of the extrusion spring 412 constitute the guide space 415.

[0064] In the embodiments of the present invention, the guide space 415 formed by the guide surface 414 at the end of the connecting column 413 and the convex surface of the extrusion spring 412 has a simple structure, facilitates the installation of the brake arm 2, and improves the installation efficiency of the brake arm 2.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A deceleration clutch device for a washing machine, comprising: The speed reducer is equipped with a brake arm; A drainage motor, connected to one end of the traction rope; The connecting arm has a fixed part and a connecting part at opposite ends. The fixed part is connected to the other end of the traction rope, and the connecting part is used to connect to the brake arm. Its features are, The connecting part is provided with an insertion interface for the end of the brake arm to pass through, and the insertion interface is provided with a snap-fit ​​mounting part that is detachably connected to the brake arm; the snap-fit ​​mounting part includes a connecting post, which is disposed in the insertion interface and protrudes radially from one side of the inner wall of the insertion interface to the opposite side; the brake arm is provided with a connecting port for the corresponding insertion of the connecting post; and a compression spring, which is disposed in the insertion interface and protrudes radially inward from the inner wall of the insertion interface on the side opposite to the connecting post, and the extended end of the compression spring overlaps with or is close to the extended end of the connecting post. The brake arm is a rod-shaped structure, and the end of the rod-shaped brake arm is provided with a radially widened anti-detachment protrusion; the middle part of the brake arm, corresponding to the part that passes through the insertion interface, is provided with a through opening, which forms a connection port for the insertion of the connecting post; The anti-detachment protrusion extends from the end of the brake arm toward the side of the compression spring. The end of the connecting post and the convex surface of the extrusion spring form a guide space to guide the brake arm into the insertion interface; the distance between the two sides of the guide space gradually narrows along the insertion direction of the brake arm.

2. A deceleration clutch device for a washing machine according to claim 1, characterized in that, The compression spring is made of a material that can produce elastic deformation. The elastic deformation of the compression spring itself can increase the distance between the extended end of the compression spring and the extended end of the connecting post.

3. A deceleration clutch device for a washing machine according to claim 2, characterized in that, The compression spring bends along its extension direction toward the side into which the brake arm is inserted.

4. A deceleration clutch device for a washing machine according to claim 3, characterized in that, The connecting post gradually narrows its radial width from the end connected to the insertion interface towards the extending end along the extending direction; the extrusion spring gradually narrows its radial width from the end connected to the insertion interface towards the extending end along the extending direction.

5. A deceleration clutch device for a washing machine according to claim 4, characterized in that, The axes of the connecting post and the compression spring are in the same cross section, and the radial width of the extended end of the compression spring is greater than or equal to the radial width of the connecting post and greater than or equal to the radial width of the brake arm passing through the insertion interface.

6. A deceleration clutch device for a washing machine according to claim 4, characterized in that, The connecting post has an inclined guide surface on the side facing the insertion direction of the brake arm. The guide surface gradually tilts away from the insertion direction of the brake arm from the end connected to the insertion interface towards the extension end.

7. A deceleration clutch device for a washing machine according to any one of claims 1 to 6, characterized in that, The insertion interface is composed of a rectangular through hole surrounded by four side walls, and the connecting post and the compression spring of the buckle mounting part are respectively located in the middle of the opposite side walls of the rectangular through hole.

8. A washing machine, characterized in that, This includes a deceleration clutch device for a washing machine as described in any one of claims 1-7 above.

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