CN215634372U

CN215634372U - Damper and washing machine applying same

Info

Publication number: CN215634372U
Application number: CN202120147792.0U
Authority: CN
Inventors: 胡敏
Original assignee: Shenzhen Ningboer Technology Co ltd
Current assignee: Shenzhen Ningboer Technology Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-01-25
Anticipated expiration: 2031-01-19

Abstract

The application provides a attenuator, including the sleeve pipe and with the axis of rotation that the sleeve pipe rotates to be connected, still including being located sleeve pipe's sliding shaft and helping hand subassembly to and locate sleeve pipe tip's end cover, the one end of axis of rotation is passed the end cover stretches into to the cover intraductal, and the terminal surface of axis of rotation and sliding shaft's terminal surface sliding fit and sliding shaft can be along sleeve pipe motion under the axis of rotation effect, and the helping hand subassembly is located the sliding shaft and is kept away from the tip of axis of rotation and be used for pushing away sliding shaft, end cover are fixed in axis of rotation, sliding shaft and helping hand subassembly in the sleeve pipe. In this application, axis of rotation and slip axle sliding fit, the axis of rotation acts on the slip axle when rotating and makes it move along the sleeve pipe, and at this in-process, the slip axle extrudees helping hand subassembly, and simultaneously, helping hand subassembly reaction acts on the slip axle, and its output torque can offset and drive the gravity of axis of rotation pivoted external member to make the axis of rotation can stop rotating so that the external member pauses at arbitrary angle.

Description

Damper and washing machine applying same

Technical Field

The application belongs to the technical field of electric appliances, and particularly relates to a damper and a washing machine applying the damper.

Background

Products with cover plates, such as microwave ovens, washing machines, disinfection cabinets, dish washing machines and the like, are used in many occasions where people live and work. The cover plates of these products are simply hinged, do not have a cushioning function, and are poor in user experience. For example, when the microwave oven is in actual use, a user can not open the oven cover to the maximum angle when opening the oven cover to take food, particularly children, so that the oven cover can be automatically closed under the action of gravity after hands are released, and the hands can be injured by carelessness.

Disclosure of Invention

An object of the embodiment of the application is to provide a damper and a device using the damper, which solve the technical problem that a device with a cover plate in the prior art does not have a buffering function when a cover is turned over and is easy to clamp hands.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a damper, including the sleeve pipe and with the axis of rotation that the sleeve pipe rotated to be connected, still including being located sliding shaft and helping hand subassembly in the sleeve pipe, and locate the end cover of sleeve pipe tip, the one end of axis of rotation is passed the end cover stretches into to in the sleeve pipe, the terminal surface of axis of rotation with the terminal surface sliding fit of sliding shaft just the sliding shaft can follow under the axis of rotation effect the sleeve pipe motion, the helping hand subassembly is located the sliding shaft is kept away from the tip of axis of rotation is used for the ejection the sliding shaft, the end cover will axis of rotation, sliding shaft reach the helping hand subassembly is fixed in the sleeve pipe.

Further, an end face of the rotating shaft has a first sliding face, an end face of the sliding shaft adjacent to the rotating shaft has a second sliding face, and the first sliding face and the second sliding face are fitted to each other.

Furthermore, two first concave parts and two first convex parts are arranged on the first sliding surface, the two first concave parts and the two first convex parts are arranged at intervals, and the adjacent first concave parts and the first convex parts are in transition connection through cambered surfaces; the second sliding surface is provided with two second concave parts and two second convex parts, the two second concave parts and the two second convex parts are arranged at intervals, the adjacent second concave parts and the second convex parts are in transition connection through cambered surfaces, the two first convex parts are respectively embedded in the two second concave parts, and the two second convex parts are respectively embedded in the two first concave parts.

Furthermore, a guiding and limiting structure is arranged between the sleeve and the sliding shaft.

Furthermore, the guiding and limiting structure comprises a rib arranged on the outer wall of the sliding shaft and a sliding groove which is arranged in the sleeve and can allow the rib to extend into the sleeve to slide; or, the direction limit structure is including locating the spout of sliding shaft outer wall and locating inside the sleeve pipe can stretch into the rib in the spout.

Further, the power assisting assembly comprises an outer spring and an inner spring arranged in the outer spring.

Further, the wire diameter of the outer spring is larger than that of the inner spring.

Furthermore, the end cover has the confession the centre bore that the axis of rotation passed and evenly locates a plurality of first connecting holes of centre bore outward flange, the sheathed tube tip evenly sets up a plurality of second connecting holes along the circumference, first connecting hole with the second connecting hole passes through connecting piece fixed connection.

Further, a plurality of splines are axially arranged on the outer wall of the sleeve.

The application also provides a washing machine, which comprises a body and a cover plate arranged on the body, wherein the cover plate is provided with the damper between the body and the cover plate.

The application provides a damper, its beneficial effect lies in: the rotating shaft is in sliding fit with the sliding shaft, the rotating shaft acts on the sliding shaft to enable the sliding shaft to move along the sleeve when rotating, in the process, the sliding shaft presses the power assisting assembly, meanwhile, the power assisting assembly acts on the sliding shaft in a reaction mode, the output torque of the power assisting assembly can counteract the gravity of the outer part which drives the rotating shaft to rotate, the rotating shaft can stop rotating to enable the outer part to pause at any angle, meanwhile, the reaction force of the power assisting assembly plays a role in boosting, the rotating shaft can rotate again easily, and the outer part can be turned over easily.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is an exploded view of a damper according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a sleeve in a damper according to an embodiment of the present disclosure;

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2, the damper provided by the embodiment of the present application includes a sleeve 10, a rotating shaft 20 rotatably connected to the sleeve 10, a sliding shaft 30, a booster assembly 40, and an end cap 50. The sliding shaft 30 and the boosting assembly 40 are located in the sleeve 10, and the end cap 50 is disposed at an end of the sleeve 10 for fixing the rotating shaft 20, the sliding shaft 30 and the boosting assembly 40 in the sleeve 10. One end of the rotating shaft 20 penetrates through the end cover 50 and extends into the sleeve 10, the end face of the rotating shaft 20 is in sliding fit with the end face of the sliding shaft 30, the sliding shaft 30 can move along the sleeve 10 under the action of the rotating shaft 20, and the power assisting assembly 40 is arranged at the end, away from the rotating shaft 20, of the sliding shaft 30 and used for pushing the sliding shaft 30.

In the present application, the rotating shaft 20 is slidably engaged with the sliding shaft 30, and the rotating shaft 20 acts on the sliding shaft 30 to move along the sleeve 10 when rotating, in this process, the sliding shaft 30 presses the boosting assembly 40, and at the same time, the boosting assembly 40 acts against the sliding shaft 30, and its output torque can counteract and drive the gravity of the external member rotating the rotating shaft 20, so that the rotating shaft 20 can stop rotating to pause the external member at any angle, and at the same time, the reaction force of the boosting assembly 40 acts as a boosting function, so that the rotating shaft 20 can rotate again easily, i.e. the external member is turned over more easily.

In the present embodiment, the cooperative sliding between the rotating shaft 20 and the sliding shaft 30 is achieved by end surface contact. Specifically, the end portion of the rotating shaft 20 has a first sliding surface, and the end portion of the slide shaft 30 near the rotating shaft 20 has a second sliding surface, and the first sliding surface and the second sliding surface are fitted to each other. Since the sliding shaft 30 itself does not rotate, it can only move linearly along the sleeve 10, and the rotating shaft 20 can rotate, and when it rotates, it converts the rotation of the rotating shaft 20 into the linear movement of the sliding shaft 30 by the sliding fit between the first sliding surface and the second sliding surface which are engaged.

As shown in fig. 1, two first concave portions 21 and two first convex portions 22 are arranged on the first sliding surface, the two first concave portions 21 and the two first convex portions 22 are arranged at intervals, and the adjacent first concave portions 21 and the first convex portions 22 are in transition connection through an arc surface a; the second sliding surface is provided with two second concave portions 31 and two second convex portions 32, the two second concave portions 31 and the two second convex portions 32 are arranged at intervals, the adjacent second concave portions 31 and the second convex portions 32 are in transition connection through an arc surface A, the two first convex portions 22 are respectively embedded in the two second concave portions 31, and the two second convex portions 32 are respectively embedded in the two first concave portions 21. When the rotating shaft 20 rotates, each of the convex portions and the concave portions slides along the arc surface a, and the sliding shaft 30 moves along the sleeve 10 by the pushing action of the convex portions.

In the embodiment of the present application, a guiding and limiting structure is disposed between the sleeve 10 and the sliding shaft 30, and the sliding shaft 30 can only move linearly along the sleeve 10 and cannot rotate along with the rotating shaft 20 in the sleeve 10 through the guiding and limiting structure.

Specifically, the guiding and limiting structure includes a rib 33 disposed on the outer wall of the sliding shaft 30 and a sliding groove 11 disposed inside the sleeve 10 for the rib 33 to extend into and slide. In this embodiment, the ribs 33 are uniformly provided along the outer wall of the sliding shaft 30, and correspondingly, the sliding grooves 11 are also uniformly provided along the inside of the sleeve 10. Of course, the positions of the sliding groove 11 and the rib 33 can be interchanged, for example, the sliding groove 11 is disposed on the outer wall of the sliding shaft 30, and the rib 33 is disposed inside the sleeve 10.

In this embodiment, the boosting assembly 40 includes an outer spring and an inner spring 42 disposed inside the outer spring 41. Specifically, the wire diameter of the outer spring 41 is larger than that of the inner spring 42, that is, the wire diameter of the outer spring 41 is thicker and mainly plays a role of outputting force, while the wire diameter of the inner spring 42 is smaller and slightly longer and plays a role of fine adjustment, and the rotation stopping at any position of the rotating shaft 20 is better realized through the reverse boosting action of the two springs without too large rebound effect.

In this embodiment, an end cap 50 is provided to cover the end of the sleeve 10. The connecting structure of the end cap 50 and the sleeve 10 is as follows: the end cap 50 has a center hole 51 through which the rotation shaft 20 passes and a plurality of first connection holes 52 uniformly formed in an outer edge of the center hole 51, a plurality of second connection holes 12 are uniformly formed in an end portion of the sleeve 10 along a circumference, and the first connection holes 52 are fixedly connected to the second connection holes 12 by a connector 60. Specifically, the connector 60 is a screw. The fixed connection between the end cap 50 and the sleeve 10 realizes the fixation of the rotating shaft 20, the sliding shaft 30 and the boosting assembly 40 in the sleeve 10.

In this embodiment, a plurality of splines 13 are axially disposed on the outer wall of the sleeve 10. Through setting up a plurality of splines 13, convenience of customers is fixed with the installation of product when the actual application, and the installation of sleeve pipe 10 can be realized as long as leave the same size groove on the product. Meanwhile, the splines 13 are different in thickness and have a fool-proof function.

The application also provides a device (not shown in the figure), which comprises a body and a cover plate arranged on the body, wherein the damper is arranged between the cover plate and the body. Because the damper is simple and compact in structure, and the booster assembly 40 is arranged and utilized, the specifications of the inner spring 42 and the outer spring 41 can be adjusted as required, and the inclination of the first sliding surface and the second sliding surface is designed, so that the use requirements of various specifications from a small cover plate to a large cover plate can be met.

The during operation drives axis of rotation 20 and rotates together during the apron upset, and axis of rotation 20 passes to the sliding shaft 30 through first slip with power, and linear motion is done along sleeve pipe 10's spout 11 to sliding shaft 30 to extrusion helping hand subassembly 40, the output power of helping hand subassembly 40 just in time offsets the rotation moment of apron because of gravity produces, thereby realizes the function that the apron can all stop at arbitrary angle, like this, the condition of tong can not appear even child uses yet. When the cover is opened, the power assisting component 40 is always in a compressed state, so that when the cover is opened, the rebounding force of the two springs can counteract the gravity of the cover, the power assisting effect is realized, and a user can easily open the cover.

In the application, the device can be a washing machine, a microwave oven, a refrigerator and the like, and the functions of slow descending and power-assisted opening can be realized by using the damper as long as the device is provided with the cover plate.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A damper, includes sleeve pipe and with the axis of rotation that the sleeve pipe rotated and is connected, its characterized in that: the sleeve is characterized by further comprising a sliding shaft and a power assisting assembly which are located in the sleeve, and an end cover which is arranged at the end part of the sleeve, wherein one end of the rotating shaft penetrates through the end cover to extend into the sleeve, the end surface of the rotating shaft is in sliding fit with the end surface of the sliding shaft, the sliding shaft can move along the sleeve under the action of the rotating shaft, the power assisting assembly is arranged at the position, far away from the end part of the rotating shaft, of the sliding shaft and used for pushing the sliding shaft, and the end cover is used for fixing the rotating shaft, the sliding shaft and the power assisting assembly in the sleeve.

2. The damper of claim 1, wherein: the end face of the rotating shaft is provided with a first sliding face, the end face, close to the rotating shaft, of the sliding shaft is provided with a second sliding face, and the first sliding face and the second sliding face are mutually embedded.

3. The damper of claim 2, wherein: two first concave parts and two first convex parts are arranged on the first sliding surface, the two first concave parts and the two first convex parts are arranged at intervals, and the adjacent first concave parts and the first convex parts are in transition connection through cambered surfaces; the second sliding surface is provided with two second concave parts and two second convex parts, the two second concave parts and the two second convex parts are arranged at intervals, the adjacent second concave parts and the second convex parts are in transition connection through cambered surfaces, the two first convex parts are respectively embedded in the two second concave parts, and the two second convex parts are respectively embedded in the two first concave parts.

4. The damper of claim 1, wherein: and a guide limiting structure is arranged between the sleeve and the sliding shaft.

5. The damper of claim 4, wherein: the guiding and limiting structure comprises a rib arranged on the outer wall of the sliding shaft and a sliding groove which is arranged in the sleeve and can allow the rib to extend into the sleeve to slide; or, the direction limit structure is including locating the spout of sliding shaft outer wall and locating inside the sleeve pipe can stretch into the rib in the spout.

6. The damper of claim 1, wherein: the power assisting assembly comprises an outer spring and an inner spring arranged in the outer spring.

7. The damper of claim 6, wherein: the wire diameter of the outer spring is larger than that of the inner spring.

8. The damper according to any one of claims 1 to 7, wherein: the end cover has the confession the centre bore that the axis of rotation passed and evenly locate a plurality of first connecting holes of centre bore outward flange, sheathed tube tip evenly sets up a plurality of second connecting holes along the circumference, first connecting hole with the second connecting hole passes through connecting piece fixed connection.

9. The damper of claim 8, wherein: a plurality of splines are axially arranged on the outer wall of the sleeve.

10. The utility model provides a washing machine, includes the body and locates apron on the body which characterized in that: a damper as claimed in any one of claims 1 to 9 provided between the cover plate and the body.