CN217709976U

CN217709976U - Laundry treating apparatus and damper for laundry treating apparatus

Info

Publication number: CN217709976U
Application number: CN202220760891.0U
Authority: CN
Inventors: 曾耀华; 姜文锋; 侯永顺
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-11-01
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to a clothing treatment facility technical field specifically provides a clothing treatment facility and be used for clothing treatment facility's bumper shock absorber, aims at solving the current complicated problem of structure that is used for clothing treatment facility's bumper shock absorber. The utility model provides a bumper shock absorber for clothing treatment facility includes: a sleeve; a piston member slidably provided to the sleeve; a first damping member connected with the sleeve and the piston part, respectively, and thus configuring a primary damping structure; and the second damping component is arranged on the sliding path of the piston part and comprises a connecting end and a free end, the connecting end is fixedly connected to one of the piston part and the sleeve, and correspondingly, the free end can be pressed by the other of the piston part and the sleeve in a stage during the relative sliding process of the piston part and the sleeve so as to construct a secondary damping structure by means of the pressing. The utility model provides a simple structure of bumper shock absorber can obtain better shock attenuation effect.

Description

Laundry treating apparatus and damper for laundry treating apparatus

Technical Field

The utility model relates to a clothing treatment facility technical field specifically provides a clothing treatment facility and be used for clothing treatment facility's bumper shock absorber.

Background

The existing clothes treatment equipment such as a washing machine, a washing and drying integrated machine and the like need to rotate a roller in the process of running washing, rinsing, spin-drying and other programs, particularly when the spin-drying program is executed, the roller needs to rotate at a high speed, the vibration amplitude of the roller can be changed continuously under the influence of the distribution of clothes in the roller, and when the integral eccentricity of the roller is larger, the vibration amplitude can be increased remarkably. At present, most of drum washing machines adopt viscous damping shock absorbers, the damping force provided by the shock absorbers in the working process is basically constant and unchangeable, and the shock absorbers cannot be adjusted according to the actual vibration amplitude of a drum.

As an improvement, patent document CN111334983A discloses a damper and a washing machine, specifically, the damper includes: at least three sections of shock absorption rods, wherein the shock absorption rods are sequentially and correspondingly spliced and are connected in series to form a strip shock absorption piece; damping members are respectively arranged at the inserting positions between the adjacent shock absorption rods to provide damping force for the relative movement between the opposite inserted shock absorption rods; wherein, the damping coefficient of the damping component at the splicing position of each adjacent shock absorption rod is not set. It can be seen that the shock absorber provided in the patent document can provide variable damping force by providing a plurality of damping members and arranging the damping members in a structural form with different damping coefficients, but the shock absorber has a complicated structure and is expensive to produce.

The patent document with the publication number of CN109162067A provides a damping device of a washing machine and the washing machine, and particularly the damping device comprises a suspension rod, a sleeve, a spring and a spring seat, wherein one end of the suspension rod is movably arranged in the sleeve, the spring and the spring seat are both arranged on the suspension rod and positioned in the sleeve, a friction piece is arranged on the spring seat and is in sliding contact with the inner wall of the sleeve, and air holes are formed in the spring seat and/or the friction piece so as to form air damping when the suspension rod moves. It can be seen that the structure of the shock absorber is also very complex in this solution.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving or alleviate above-mentioned technical problem at least, solve the current complicated problem of structure that is used for the bumper shock absorber of clothing treatment facility promptly.

In a first aspect, the present invention provides a damper for a laundry treating apparatus, the damper comprising: a sleeve; a piston member slidably provided to the sleeve; a first damping member connected to the sleeve and the piston part, respectively, and thus configuring a primary damping structure; and a second damping member disposed on a sliding path of the piston part, the second damping member including a connection end and a free end, the connection end being fixedly connected to one of the piston part and the sleeve, and accordingly, the free end can be pressed by the other of the piston part and the sleeve in stages during relative sliding of the piston part and the sleeve, so as to construct a secondary damping structure by means of the pressing.

The utility model provides a bumper shock absorber for clothing treatment facility, through set up the second damping component on the slip path at piston part, and be connected one end and one of them of piston part and telescopic of second damping component, the other end is as the free end, so, when the vibration range of the clothing treatment section of thick bamboo that holds the clothing is less, only can make the clothing treatment section of thick bamboo obtain fine shock attenuation effect through the one-level damping structure of sleeve, piston part and first damping component structure, the free end of second damping component does not contact with piston part or sleeve this moment; when the vibration amplitude of the clothes treatment cylinder is large, the piston part or the sleeve is further abutted against the free end of the second damping member and gradually extrudes the second damping member to deform the second damping member, so that the damping force received by the piston part is increased in a step mode, the strong vibration situation can be better responded, the better damping effect is realized, and the sectional type damping is realized for different vibration situations. The utility model provides a simple structure, the improvement of bumper shock absorber are with low costs, can obtain better shock attenuation effect.

It can be understood that the damping force generated by the primary damping structure formed by the shock absorber structure in the working process is the combination of the friction damping force and the air damping force; the utility model provides a damping force that second grade damping structure that bumper shock absorber structure formed produced in the course of the work has increased elastic damping power on the basis of one-level damping structure.

The utility model provides a first damping component's implementation mode has the multiple. For example, the first damping member may be a relatively thin layer of damping material applied to the inner wall of the sleeve or the outer circumferential surface of the piston element; alternatively, the first damping member may be an annular damping mass sleeved to the sleeve or piston part.

The utility model provides a second damping component's implementation has the multiple. For example, in terms of the structure of the second damping member, the second damping member may be a spring, or a damping mass, or a combination of a spring and a damping mass, or the like. The second damping member may be disposed on the outer periphery of the sleeve or may be disposed inside the sleeve. The second damping member may be a spring having one end fixedly connected to the inner bottom surface of the sleeve and one end being a free end, and the connection end may be fixedly connected to the inner bottom surface of the sleeve or the end of the piston member.

It should be noted that the staged structure of the present invention refers to the strong shock condition of the secondary damping structure in the shock absorbing process, and if the shock condition of the laundry treatment drum is divided into the strong shock condition and the weak shock condition, the strong shock condition will be gradually changed into the weak shock condition along with the function of the shock absorber. When the vibration amplitude of the clothes treatment drum is small (namely, the clothes treatment drum is only in a weak vibration state), only one-stage damping structure is needed to play a role in damping; when the vibration amplitude of the clothes treatment drum is larger (namely, strong vibration occurs), the secondary damping structure starts to play a role in damping, the vibration amplitude is gradually reduced along with the dissipation of vibration energy, and the second damping member gradually restores to elastic deformation until the second damping member is separated from the contact with the sleeve or the piston part.

With respect to the above-described shock absorber for a laundry treating apparatus, in some possible embodiments, the second damping member is disposed inside the sleeve.

Through setting up the second damping component in the sleeve, compare with the scheme of setting up it outside the sleeve, set up in the sleeve and be favorable to improving the connection stability of second damping component, avoid taking place the situation of shock attenuation inefficacy because of the second damping component drops.

The second damping member may be provided in the sleeve so as to be connected to the piston member and separated from the sleeve in stages, or so as to be connected to the sleeve and separated from the piston member in stages.

With respect to the above-mentioned damper for a laundry treating apparatus, in some possible embodiments, the connecting end is fixedly connected with the sleeve.

Thus, an implementation of the second damping member is provided. Through setting up like this, can make the second damping component stress more even at the in-process that is supported to press and takes place deformation, be favorable to the second damping component to exert the shock attenuation effect better.

With respect to the above-described shock absorber for a laundry treating apparatus, in some possible embodiments, the second damping member is an elastic member.

It is understood that there are many situations in the structure, material, etc. of the elastic member. For example, the elastic member may be a spring, a damping block, a combination of a spring and a damping block, and the material may be high strength steel, silicon rubber, or the like.

With respect to the above-described shock absorber for a laundry treating apparatus, in some possible embodiments, the second damping member is a spring and/or a damping mass.

In this way, a superior realization of the second damping member is provided.

With respect to the above-described shock absorber for a laundry treating apparatus, in some possible embodiments, the first damping member is a ring-shaped structure.

By making the first damping member into an annular structure, the contact area thereof with the piston part can be increased, thereby better generating the damping force.

It is understood that, in addition to the annular structure, a structure formed by combining a plurality of discontinuous arc-shaped pieces attached to the outer periphery of the piston member or the inner wall of the sleeve, or the like may be used.

With respect to the above-described shock absorber for a laundry treating apparatus, in some possible embodiments, the first damping member is fixedly connected to the sleeve at a position near the mouth thereof.

Through setting up like this, can conveniently be connected to the sleeve with first damping member, and conveniently overhaul and change first damping member.

With respect to the above-described shock absorber for a laundry treating apparatus, in some possible embodiments, the piston member includes a working section, an outer surface of the working section being fitted with an inner surface of the sleeve.

In this way, an arrangement of the piston member is provided.

Through setting up like this for the relative slip process of piston part and sleeve is more smooth-going, avoids the vibrations abnormal sound that the jamming brought, is favorable to promoting the shock attenuation effect.

It will be appreciated that the piston member may also be formed as a piston rod in combination with a piston head.

With respect to the above-described damper for a laundry treating apparatus, in some possible embodiments, the working section is a hollow structure.

Through setting up like this, be favorable to alleviateing the weight of bumper shock absorber, reduction in production cost.

In a second aspect, the present invention further provides a clothes treating apparatus, comprising the damper according to any one of the above technical solutions.

It can be understood that, since the laundry treating apparatus is configured with the aforementioned damper, all technical effects of the aforementioned damper are provided, and are not described herein again.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a shock absorber according to an embodiment of the present invention;

list of reference numerals:

1. a sleeve; 10. a first hinge hole; 2. a piston member; 20. a second hinge hole; 3. a first damping member; 4. a second damping member.

Detailed Description

First, it should be noted that the following embodiments are only used for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the following embodiments are explained in conjunction with a drum washing machine, this is not intended to be limiting, and the present invention is also applicable to a drum washing and drying machine, etc., without departing from the spirit and scope of the present invention.

Next, in order to better explain the present invention, numerous specific details are set forth in the following detailed description. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details.

In the description of the present invention, the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, which indicate directions or positional relationships, are based on directions or positional relationships in actual use, and are merely for convenience of description, and do not indicate or imply that the apparatus to be protected must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, "not illustrated" indicates that the corresponding structure is not illustrated but indicated in the drawings, and "not illustrated" indicates that the corresponding structure is not illustrated in the drawings.

Based on the current complicated, with high costs problem of structure that is used for the bumper shock absorber of clothing treatment facility, the embodiment of the utility model provides a simple structure, effectual bumper shock absorber of shock attenuation through setting up second damping component structure formation second grade shock-absorbing structure, can deal with the clothing and handle a section of thick bamboo and take place the situation of strong shake, promote the shock attenuation effect.

The following description will be made by taking a drum washing machine as an example. The embodiment of the utility model provides a drum type washing machine includes the box and sets up the cylinder in the box, and the cylinder is connected with the motor, can be relative box rotation under the drive of motor. A shock absorber is connected between the roller and the box body. The dampers are usually provided with 4 dampers, 4 dampers cooperating with each other to hold the drum in the cabinet.

As shown in fig. 1, the embodiment of the present invention provides a shock absorber including a sleeve 1, a piston part 2, a first damping member 3 and a second damping member 4, which can achieve the effect of primary and secondary shock absorption.

Specifically, as shown in fig. 1, the sleeve 1 is a cylindrical structure having one end closed and the other end open. The open end of the sleeve 1 is structurally reinforced by increasing the radial dimension at a position close to the opening of the sleeve, and then the end face of the reinforced part is retracted in the direction towards the bottom (right side in the figure) of the sleeve 1 to form a cylindrical space with the axis coinciding with the axis of the sleeve 1, so that a mounting position for fixedly mounting the first damping member 3 is constructed. The closed end of the sleeve 1 is formed with a first hinge hole 10, the first hinge hole 10 is used for installing a first rotating shaft (not shown), and the first rotating shaft is arranged on a shock absorber mounting seat (not shown) in the box body, so that the sleeve 1 is connected with the shock absorber mounting seat in a hinged manner, and the shock absorption effect can be better exerted.

The piston member 2 in this embodiment comprises a working section located at a portion of the piston member 2 adjacent to the sleeve 1. The working section means a section capable of forming a frictional damping force by interacting with the first damping member 3 during a shock absorbing process, and in order to stabilize and smooth a relative sliding process between the piston part 2 and the sleeve 1, an outer surface of the working section of the piston part 2 in the present embodiment is fitted to an inner surface of the sleeve 1, as shown in fig. 1. During operation, the outer surface of the working section and the inner surface of the sleeve 1 are attached to each other, and during the process that the piston part 2 and the sleeve 1 approach each other to gradually reduce the space inside the piston part 2 and the sleeve 1, due to the good air tightness between the piston part 2 and the sleeve 1, air damping is formed while a frictional damping force is formed. The piston part 2 in the embodiment is of a hollow structure, so that the overall quality of the shock absorber can be reduced, and the overall quality and the production cost of the washing machine are further reduced.

The end of the piston member 2 away from the sleeve 1 is provided with a second hinge hole 20, the second hinge hole 20 is used for connecting a second rotating shaft (not shown), and the second rotating shaft is connected with the drum, so that the piston member 2 is hinged with the drum.

The first damping member 3 in this embodiment is an annular structure that is fixedly attached to the sleeve 1 at a position near the opening thereof, specifically, at a position of a cylindrical space formed on the sleeve 1. The first damping member 3 is made of a high molecular polymer with high viscoelasticity, such as neoprene, silicone rubber, polyvinyl chloride, and the like.

Compare with traditional bumper shock absorber that only can realize one-level absorbing, the embodiment of the utility model provides a bumper shock absorber still is provided with second damping component 4, can further construct with the help of second damping component 4 and form second grade damping structure to realize the sectional type shock attenuation effect of bumper shock absorber.

Specifically, as shown in fig. 1, the second damping member 4 in the present embodiment is provided on the sliding path of the piston part 2. The second damping member 4 in this embodiment is a spring and is disposed inside the sleeve 1. The spring comprises a connecting end and a free end, in this embodiment, the connecting end is the end facing the bottom of the sleeve 1, the free end is the end facing the end of the piston member 2, and the connecting end is fixedly connected to the bottom of the sleeve 1. During the operation of the shock absorber, when the vibration amplitude of the roller is small, the working section of the piston part 2 is small in size deep into the sleeve 1, the end part of the piston part 2 is not enough to contact with the spring, and therefore the shock absorption of the roller is mainly realized by the primary damping structure formed by the first damping member 3 in the shock absorption stage. When the vibration amplitude of the roller is large, the acting force applied to the piston component 2 by the roller is greatly increased, so that the working section of the piston component 2 is further extended into the sleeve 1, the end part of the piston component 2 is abutted to the spring and compresses the spring, the damping force is further provided through the spring, and the secondary damping function of the shock absorber is realized. It will be appreciated that the first damping member 3 is also providing a damping force during the process of the spring providing a damping force.

Alternatively, the spring can also be replaced by an elastic damping mass. Specifically, if the elastic damping block is made into a cylindrical structure with an inner diameter slightly smaller than that of the sleeve, the elastic damping block also comprises a free end and a connecting end, and the material of the elastic damping block can be the same as that of the first damping member, such as silica gel, silicon rubber and the like. The connecting end of the elastic damping block is fixedly connected with the inner bottom of the sleeve, for example, the elastic damping block is bonded through strong glue, and in the process that the piston part slides relative to the sleeve, the end of the piston part is abutted to the elastic damping block and compresses the elastic damping block, so that elastic damping force is further provided.

It should be noted that, when the second damping member adopts a damping block, a gap needs to be formed between the elastic damping block and the sleeve, or a hollow space exists between the elastic damping block and the sleeve, so as to provide an accommodating space for air enclosed in the sleeve.

Alternatively, it is also possible to fixedly connect the spring or the elastic damping mass to the piston part. Specifically, taking the elastic damping block as an example, one end of the elastic damping block facing the piston part is fixedly connected to the piston part, and one end facing the inner bottom surface of the sleeve is a free end.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A damper for a laundry treating apparatus, characterized in that the damper comprises:

a sleeve;

a piston member slidably provided to the sleeve;

a first damping member connected with the sleeve and the piston part, respectively, and thus configuring a primary damping structure;

and a second damping member disposed on a sliding path of the piston part, the second damping member including a connection end and a free end, the connection end being fixedly connected to one of the piston part and the sleeve, and accordingly, the free end can be pressed by the other of the piston part and the sleeve in stages during relative sliding of the piston part and the sleeve, so as to construct a secondary damping structure by means of the pressing.

2. The shock absorber for a laundry treating apparatus according to claim 1, wherein the second damping member is provided inside the sleeve.

3. The damper for a laundry treating apparatus according to claim 2, wherein the connection end is fixedly connected with the sleeve.

4. The shock absorber for a laundry treating apparatus according to claim 2, wherein the second damping member is an elastic member.

5. The shock absorber for a laundry treating apparatus according to claim 4, wherein the second damping member is a spring and/or a damping mass.

6. The shock absorber for a laundry treating apparatus according to claim 1, wherein the first damping member is a ring structure.

7. The shock absorber for a laundry treating apparatus according to claim 6, wherein the first damping member is fixedly connected to the sleeve at a position near a mouth of the sleeve.

8. The shock absorber for a laundry treating apparatus according to claim 1, wherein the piston member includes a working section, an outer surface of the working section fitting with an inner surface of the sleeve.

9. The damper for a laundry treating apparatus according to claim 8, wherein the working section is a hollow structure.

10. A laundry treating apparatus, characterized by comprising the damper for a laundry treating apparatus of any one of claims 1 to 9.