WO2022257816A1

WO2022257816A1 - Mirror lifting/lowering structure, and mirror device

Info

Publication number: WO2022257816A1
Application number: PCT/CN2022/096254
Authority: WO
Inventors: 林思斌; 刘汀科
Original assignee: 厦门松霖科技股份有限公司
Priority date: 2021-06-11
Filing date: 2022-05-31
Publication date: 2022-12-15
Also published as: CN115120079A

Abstract

A mirror lifting/lowering structure (2), comprising: a fixing plate (21), a support (22), a counterweight (23), a damping fixing assembly (24), and a converting member (25); the damping fixing assembly (24) is mounted on the fixing plate (21); the counterweight (23) and the damping fixing assembly (24) are connected by means of the converting member (25); the converting member (25) converts the gravity of the counterweight (23) into a pulling force on the damping fixing assembly (24); the support (22) is provided with a rail (221) in the height direction for the damping fixing assembly (24) to move up and down; the damping fixing assembly (24) is provided with a friction block (241) and a release member (242); the release member (242) is used for driving the friction block (241) to move in the width direction of the rail (221), so that the friction block (241) abuts against or is separated from the side wall of the rail (221). The mirror lifting/lowering structure (2) can position the mirror at any height, and can adapt to mirrors having different weights.

Description

A mirror lift structure and mirror

technical field

The present invention relates to a household item, in particular to a mirror.

Background technique

Everyone has a love of beauty, especially in today's civilization and politeness, people pay more attention to their appearance, and check themselves in the mirror before going out. The mirror, in the case of fast pace, can save the time of going to the bathroom to look in the mirror. The current telescopic mirror can only move left and right. Everyone knows that in addition to adults who should pay attention to their appearance, children also have a heart for beauty, especially little girls. Due to the great disparity in height between adults and children, children cannot use it at all. Therefore, it is necessary to allow the mirror to rise and fall to meet the needs of people of different heights.

Contents of the invention

The main technical problem to be solved by the present invention is to provide a mirror lifting mechanism, which can realize the hovering of the mirror at any height, and can be adapted to use with mirrors of different weights.

In order to solve the above-mentioned technical problems, the present invention provides a mirror lifting structure, including: a fixed plate, a bracket, a counterweight, a damping fixing assembly and a reversing member;

The damping fixing assembly is installed on the fixing plate; the counterweight and the damping fixing assembly are connected by a reversing member, and the reversing member reverses the weight of the counterweight to pull the damping fixing assembly;

The bracket is provided with a track for the damping fixed assembly to move up and down along the height direction; the damped fixed assembly is provided with a friction block and a release piece; the release piece is used to drive the friction block to move along the width direction of the track, so that The friction block abuts or separates from the side wall of the rail.

In a preferred embodiment: the release member includes a ratchet and a pawl; the ratchet is provided with a ratchet shaft, and the ratchet shaft is sequentially provided with ratchet teeth and cams along the axial direction; When the direction corresponding to the width direction of the track rotates, the friction block gradually abuts against the side wall of the track; when the cam rotates along the short side and the width direction of the track, the friction block gradually separates from the side wall of the track.

In a preferred embodiment: the pawl is engaged with the ratchet wheel in one direction; when the ratchet wheel rotates against the direction of the one-way fit, the pawl is separated from the teeth of the ratchet wheel.

In a preferred embodiment: when the ratchet rotates along the one-way fitting direction, the frictional force between the friction block and the side wall of the track increases.

In a preferred embodiment: it also includes a guide plate, the guide plate is arranged between the fixed plate and the damping fixing assembly; the guide plate is provided with a relief slot corresponding to the track, and a connecting piece passes through the The said relief slot is fixedly connected with the damping fixed assembly and the fixed plate; said guide plate is fixedly connected with the iron frame.

In a preferred embodiment: there are two damping fixing components, which are arranged at intervals along the height direction of the fixing plate, wherein the damping fixing member located above is connected to the counterweight through a commutator.

In a preferred embodiment: the reversing member is a fixed pulley, which is fixedly arranged in the track; one end of the rope is connected to the counterweight, and the other end of the rope is connected to the damping fixing member after bypassing the fixed pulley.

In a preferred embodiment: the reversing member is a fixed pulley and a movable pulley, the fixed pulley is arranged in the track, the movable pulley is connected with the damping fixed assembly, one end of the rope is a fixed end, and the other end goes around the movable pulley in turn and the fixed pulley are connected to the counterweight.

The present invention also provides a mirror, which includes a mirror body and the lifting structure as described above, and the fixing plate is fixedly connected to the back of the mirror body.

Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

The invention provides a lifting structure of the mirror surface, which can stay at any point within the stroke range by using the friction force provided by the damping fixing component. In addition, the frictional force can be adjusted through the damping and fixing components, so that additional frictional force can be provided as a pulling force in addition to the gravity of the counterweight, so that the mirror weight that the lifting structure can adapt to is broadened and the applicability is enhanced.

Description of drawings

Fig. 1 is the perspective view of preferred embodiment 1 of the present invention;

Fig. 2 is the three-dimensional exploded view of preferred embodiment 1 of the present invention;

Fig. 3 is the sectional view of preferred embodiment 1 of the present invention;

Fig. 4 is a partial three-dimensional exploded view of the preferred embodiment 1 of the present invention;

Fig. 5 is a partial perspective view of preferred embodiment 1 of the present invention;

Fig. 6 is a three-dimensional exploded view of the damping fixing assembly in preferred embodiment 1 of the present invention;

7-9 are schematic diagrams of the rotation of the damping and fixing assembly in the preferred embodiment 1 of the present invention;

Fig. 10 is a partial three-dimensional exploded view of the preferred embodiment 2 of the present invention;

Fig. 11 is a partial sectional view of the preferred embodiment 2 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments, based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom" etc. are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "sleeved/connected", "connected", etc. should be understood in a broad sense, such as " Connection" can be wall-mounted connection, detachable connection, or integral connection, mechanical connection, electrical connection, direct connection, or indirect connection through an intermediary, or internal connection between two components. The communication of the above-mentioned terms in the present invention can be understood by those of ordinary skill in the art in specific situations.

Example 1

Referring to Figures 1-9, this embodiment provides a mirror, including a mirror body 1 and a lifting structure 2,

The lifting structure 2 includes: a fixed plate 21, a bracket 22, a counterweight 23, a damping fixed assembly 24 and a reversing member 25; the fixed plate 21 is fixedly connected to the back of the mirror body 1; the damping fixed assembly 24 Installed on the fixed plate 21; the counterweight 23 and the damping fixed assembly 24 are connected through a reversing member 25, and the reversing member 25 reverses the gravity of the counterweight 23 into a pulling force on the damping fixed assembly 24;

The bracket 22 is provided with a track 221 for the damping fixing assembly 24 to move up and down along the height direction; the damping fixing assembly 24 is provided with a friction block 241 and a release member 242; the release member 242 is used to drive the friction block 241 along the The width direction of the rail 221 moves so that the friction block 241 abuts against or separates from the sidewall of the rail 221 .

Let the gravity of the mirror body 1 be G, the gravity of the counterweight 23 be g, the static friction force f _s between the friction block 241 and the track 221, the dynamic friction force between the friction block 241 and the track 221 be f _k , and the applied force be F, where f _s > f _k , f _s is adjustable, and the static friction can always be the state of maximum static friction, that is, f _s = f _s(max) ;

There are 3 situations:

1) G>g

At rest: G＝g+f _s

When an external force F is applied to the mirror body, then F>f _s(max) +(Gg)>f _k +(Gg)

2) G=g

At rest: G=g

When an external force F is applied to the mirror body, then there is F＞f _s(max) ＞f _k

3) G<g

At rest: G+f _s = g

It can be seen from the above analysis that when the gravity g of the counterweight 23 is equal to the gravity G of the mirror body 1, the external force F applied can make the mirror body move as long as it can overcome the static friction force f _s and the dynamic friction force is f _k . Very labor-saving.

The lifting structure 2 mentioned above can stay at any point within the travel range by utilizing the frictional force provided by the damping and fixing component 24 . In addition, the magnitude of the frictional force can be adjusted through the damping and fixing assembly 24, so that an additional frictional force can be provided as a pulling force outside the weight of the counterweight 23, so that the mirror weight that can be adapted to the lifting structure 2 is widened, and the applicability is improved. strengthened.

In this embodiment, the release member 242 includes a ratchet 2421 and a pawl 2422; the ratchet 2421 is provided with a ratchet shaft, and the ratchet shaft is sequentially provided with ratchet teeth 2423 and a cam 2424 along the axial direction; the cam 2424 is The elliptical wheel has a pair of short sides and a pair of long sides; when the long side rotates in the direction corresponding to the width direction of the track 221, the friction block 241 gradually abuts against the side wall of the track 221; the cam 2424 moves along the When the short side rotates along the width direction of the track 221 , the friction block 241 is gradually separated from the sidewall of the track 221 .

The rotation of the ratchet 2421 drives the cam 2424 to rotate, so that the short side or long side of the cam 2424 is in contact with the friction block 241, thereby pushing the friction block 241 to move in the width direction of the track 221, so that the friction block 241 can contact the track 221 The side wall of the rail 221 is separate from the side wall of the rail 221, so that frictional force is generated between the friction block 241 and the rail 221, and an additional pulling force is provided to the mirror body 1.

In this embodiment, the friction block 241 has a friction edge 2413 abutting against the side wall of the rail 221, an inner edge 2414 in contact with the cam 2424, and a support rod 2411 arranged up and down on the support rod 2411. There is a spring positioning card 2412.

6-9, in this embodiment, the damping and fixing assembly 24 also includes a front cover 245, a housing 244 and a spring 243, and an elongated hole 2441 is opened on an opposite side wall of the housing 244, and the Both the friction block 241 and the release member 242 are installed in the housing 244; the ratchet shaft is installed in the middle of the housing 244, and the ratchet teeth 2423 and the cam 2424 are sequentially arranged along the axial direction, and the two friction blocks 241 are arranged symmetrically On both sides of the cam 2424, its inner side 2414 is in contact with the cam 2424, and its friction sides 2413 protrude from the elongated holes 2441 respectively, and the spring 243 is limited between the support rod 2411 and the inner wall of the housing 244 by the spring positioning card 2412 between.

In order to allow the ratchet 2421 to be fixed in the state where the friction block 241 abuts against the side wall of the rail 221, a ratchet tooth 2423 and a pawl 2422 are provided, and the ratchet 2422 cooperates with the ratchet 2421 in one direction; and when the ratchet 2421 moves against the When the one-way matching direction turns, the pawl 2422 is separated from the ratchet teeth 2423 .

In this way, when the user rotates the cam 2424 along the direction corresponding to the long side and the width direction of the track 221, the pawl 2422 and the teeth of the pawl 2422 will be unidirectionally limited to prevent the cam 2424 from reversing. And the ratchet 2421 rotates along the direction of the one-way fit, the friction force between the friction block 241 and the side wall of the track 221 increases, and the additional pulling force provided is greater. And when the user rotates the ratchet 2421 in the opposite direction, the ratchet 2422 and the teeth of the ratchet 2422 release the limit, and the friction block 241 and the side wall of the track 221 release the abutting fit.

A square hole 2425 is provided on the ratchet 2421 for accommodating tools, and the rotation of the adjusting cam 2424 is adjusted to adjust the friction between the friction block 241 and the side wall of the track 221 . Not limited to square holes, it can also be designed into other shapes to facilitate matching tools.

In the embodiment of the present invention, the cam 2424 is an elliptical wheel, and the two friction blocks 241 are symmetrically arranged on both sides of the cam 2424. Therefore, when the cam 2424 is adjusted, the force on the two friction blocks 241 is even, ensuring that the friction edge 2413 It is equal to the friction force between the side walls of the track 221; at the same time, the two friction blocks 241 are elastically connected to the housing 244 through four springs 243 to ensure stability.

In this embodiment, in order to ensure that the mirror body 1 can move along the direction of the guide rail during the lifting process without shaking, a guide plate 26 is also included, and the guide plate 26 is arranged between the fixing plate 21 and the damping fixing assembly 24 The guide plate 26 is provided with a relief groove 261 corresponding to the track 221, and a connector 262 passes through the relief groove 261 to fix the damping fixing assembly 24 and the fixed plate 21; the guide plate 26 and The iron frame is fixedly connected. Due to the guiding effect of the guide plate 26, the mirror main body 1 can move up and down along the extension direction of the guide plate 26, while shaking in other directions will be limited by the guide plate 26, thus ensuring the smooth and stable lifting function.

In this embodiment, there are two damping fixing components 24 arranged at intervals along the height direction of the fixing plate 21 , wherein the upper damping fixing component is connected to the counterweight 23 through a commutator. The purpose of having two damping fixing components 24 is to allow the damping fixing member to have more contact with the mirror body 1 and provide more additional pulling force. And the two damping fixtures can also better ensure the stability of the lifting function.

In this embodiment, the reversing member 25 is a fixed pulley fixedly arranged in the track 221 ; one end of the rope is connected to the counterweight 23 , and the other end of the rope is connected to the damping fixing member after bypassing the fixed pulley.

Suppose the gravity of the mirror body is G, and the total gravity of the counterweight 23 is g, then the relationship between the two is G=g in theory, because there is an angle deviation in fact, it will cause the rope to have an angle with the vertical direction, so the two The relationship between them is G≈g.

Example 2

Referring to Figures 10 and 11, the difference between this embodiment and Embodiment 1 lies in the reversing member 25. The reversing member 25 in this embodiment is a fixed pulley 251 and a movable pulley 252, and the fixed pulley 251 is arranged on the track In 221 , the movable pulley 252 is connected to the damping fixing assembly 24 , one end of the rope is a fixed end, and the other end is connected to the counterweight 23 after going around the movable pulley 252 and the fixed pulley 251 in turn.

Suppose the gravity of the mirror body is G, and the total gravity of the counterweight 23 is g, then the relationship between the two is G=2g in theory, because there is an angle deviation in fact, it will cause the steel cable to have an angle with the vertical direction, so The relationship between the two is G≈2g.

The above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any person familiar with the technical field can use this concept to carry out the present invention within the technical scope disclosed in the present invention. Non-substantial changes all belong to infringement of the protection of the present invention.

Industrial Applicability

The lifting structure of the mirror surface of the present invention can realize the hovering of the mirror surface at any height through the damping and fixing components thereof, and can be adapted to the use of mirror surfaces of different weights. The utility model has a wide application range, can be used for various mirrors, and has good industrial applicability.

Claims

A mirror lifting structure, characterized by comprising: a fixed plate, a bracket, a counterweight, a damping fixing assembly and a reversing member;

The damping fixing assembly is installed on the fixing plate; the counterweight and the damping fixing assembly are connected by a reversing member, and the reversing member reverses the weight of the counterweight to pull the damping fixing assembly;

The bracket is provided with a track for the damping fixed assembly to move up and down along the height direction; the damped fixed assembly is provided with a friction block and a release piece; the release piece is used to drive the friction block to move along the width direction of the track, so that The friction block abuts or separates from the side wall of the rail.
A lifting structure for a mirror according to claim 1, characterized in that: the release member includes a ratchet and a pawl; the ratchet is provided with a ratchet shaft, and the ratchet shaft is sequentially provided with ratchet teeth and Cam; when the cam rotates along the direction corresponding to the long side and the width direction of the track, the friction block gradually abuts against the side wall of the track; when the cam rotates along the short side and the width direction of the track, the The friction block is gradually separated from the side wall of the track.
The lifting structure of a mirror according to claim 2, wherein the cam is an elliptical wheel with a pair of short sides and a pair of long sides.
The lifting structure of a mirror according to claim 2, characterized in that: the pawl cooperates with the ratchet wheel in one direction; when the ratchet wheel rotates against the direction of the one-way cooperation, the pawl and ratchet teeth separate.
The lifting structure of the mirror according to claim 4, wherein when the ratchet rotates along the direction of the one-way fit, the frictional force between the friction block and the side wall of the track increases.
A lifting structure for a mirror according to any one of claims 1-5, wherein the damping and fixing assembly further includes a front cover, a casing and a spring, and an opening on an opposite side wall of the casing There are elongated holes, and the friction block and the release piece are installed in the housing;

The friction block has a friction edge abutted against the side wall of the track, an inner edge in contact with the cam, and a support bar arranged up and down on this, the support bar is provided with a spring positioning card; the friction edge is formed by the The elongated hole protrudes from the housing.
A lifting structure for a mirror according to claim 6, characterized in that: the ratchet shaft of the release member is installed in the middle of the housing, and ratchet teeth and cams are sequentially arranged along the axial direction, and the two friction blocks It is symmetrically arranged on both sides of the cam, and its inner side is in contact with the cam. The spring is limited between the support rod and the inner wall of the housing by the spring positioning card.
A lifting structure for a mirror according to any one of claims 1-7, characterized in that: it also includes a guide plate, the guide plate is arranged between the fixing plate and the damping fixing assembly; the guide plate is provided with A relief slot corresponding to the track, a connecting piece passes through the relief slot to fixedly connect the damping fixing assembly and the fixing plate; the guide plate is fixedly connected to the iron frame.
A mirror lifting structure according to claim 8, characterized in that: there are two damping fixing components, which are arranged at intervals along the height direction of the fixing plate, wherein the damping fixing piece located above is connected to the fixed plate through a commutator The counterweight connection described above.
The lifting structure of a mirror according to claim 8, characterized in that: the reversing member is a fixed pulley fixedly arranged in the track; one end of the rope is connected to the counterweight, and the other end goes around the fixed pulley Attach the damping mount.
A lifting structure for a mirror according to claim 8, characterized in that: the reversing member is a fixed pulley and a movable pulley, the fixed pulley is arranged in the track, the movable pulley is connected to the damping fixed assembly, and one end of the rope It is a fixed end, and the other end is connected to the counterweight after bypassing the movable pulley and the fixed pulley in turn.
A mirror, characterized by comprising: a mirror body and the lifting structure according to any one of claims 1-11, the fixing plate is fixedly connected to the back of the mirror body.