WO2018090469A1

WO2018090469A1 - Fastening structure for light-filtering strip

Info

Publication number: WO2018090469A1
Application number: PCT/CN2016/113795
Authority: WO
Inventors: 王玉龙; 袁嘉斌
Original assignee: 广州视睿电子科技有限公司
Priority date: 2016-10-28
Filing date: 2016-12-30
Publication date: 2018-05-24
Also published as: CN206322142U

Abstract

A fastening structure for a light-filtering strip comprises a light-filtering strip main body (1) and a profile main body (2). An engagement fastener (11) is provided at one end of the light-filtering strip main body. An elastic arm (12) is provided at the other end of the light-filtering strip main body. The profile main body has an opening (21) for engagement with the light-filtering strip main body. An inner side wall of the opening has an engagement recess (22) for engagement with the engagement fastener. Another inner side wall of the opening has a slot (23) for insertion of the elastic arm. After the light-filtering strip main body has been fastened, deformation of the elastic arm inserted into the slot generates a rebounding force acting on the engagement fastener, such that the engagement fastener tightly engages at the engagement recess. The fastening structure for a light-filtering strip involves a simple assembly process, is less affected by a length of a profile, and can be assembled by means of a tool. Moreover, elastic deformation of the elastic arm enables tight engagement of the engagement fastener at the engagement recess, thereby improving reliability.

Description

Fixed structure of filter strip

Technical field

The utility model relates to a fixing structure of a filter strip.

Background technique

Existing filter strips are designed to be inserted into the assembly from one end of the profile, which is inconvenient for longer profiles and difficult to assemble using tools. Moreover, there is often no clamping or simply "clamping" the interference fit of the filter strip with the profile opening. This design method has less constraint on the filter strip and is easily affected by the tolerance of the component, resulting in loosening of the filter strip.

Utility model content

The technical problem to be solved by the present invention is to provide a fixing structure of a filter strip which is simple in assembly and reliable in structure.

In order to solve the above technical problem, the present invention provides a fixing structure of a filter strip, which comprises a filter strip main body and a profile main body, wherein one end of the filter strip main body is provided with a buckle, and the filter strip main body is The other end is provided with an elastic arm, and the profile body is provided with an opening for the filter strip main body, and one side inner wall of the opening is provided with a bayonet for the buckle to be engaged. a card slot for inserting the elastic arm is disposed on an inner wall of the other side of the opening. After the filter strip main body is fixed, the elastic arm is pressed and deformed by the card slot to generate a resilience force acting on the buckle. Clamp the bayonet.

As a preferred solution of the present invention, the buckle is shaped to match the bayonet.

In a preferred aspect of the present invention, the buckle is inclined from an inner side of the opening toward an outer side of the opening; the bayonet is inclined from an outer side of the opening toward an inner side of the opening.

As a preferred aspect of the present invention, the elastic arm is bent from the inner side of the opening toward the outer side of the opening.

As a preferred solution of the present invention, the card slot is provided with a protrusion on a side of the inner side of the opening.

As a preferred embodiment of the present invention, the projection abuts against a convex surface of the curved portion of the elastic arm.

As a preferred solution of the present invention, the buckle is integrally formed with the filter strip main body.

As a preferred aspect of the present invention, the elastic arm is integrally formed with the filter strip main body.

In a preferred embodiment of the present invention, an end surface of the filter strip main body located outside the opening is flush with an end surface of the opening.

Compared with the prior art, the fixing structure of a filter strip of the present invention has the following beneficial effects:

(1) When assembling, first insert the elastic arm of the filter strip into the slot of the profile, and then push the buckle of the filter strip into the inside of the profile and snap into the bayonet of the profile to complete the filter strip assembly. It can be seen that the utility model adopts the card assembly method of the filter strip, the assembly has little influence on the length of the profile, and can be quickly assembled by tools;

(2) Since the existing solution provides the clamping force of the filter strip through the interference assembly, the clamping force is often not limited by the interference, and the utility model provides the buckle through the elastic shape of the elastic structure of the elastic arm. Clamping force, higher reliability;

(3) Realize the constraint on the multi-position of the filter strip, reduce the sensitivity to the dimensional tolerance, and effectively prevent the filter strip from loosening due to the tolerance of the component.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

1 is a cross-sectional view showing a fixing structure of a filter strip of the present invention;

2 to 4 are schematic views showing an assembly process of the filter strip;

Fig. 5 is a schematic view showing a state of constraint after assembly of the filter strip.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1 , a preferred embodiment of the present invention, a fixing structure of a filter strip, comprising a filter strip main body 1 and a profile body 2, wherein the filter strip main body 1 is provided with a buckle 11 at one end thereof. The other end of the filter strip main body 1 is provided with an elastic arm 12, and the profile main body 2 is provided with an opening 21 for the filter strip main body 1 to be placed, and one side inner wall of the opening 21 is provided with a card slot 22 into which the buckle 11 is inserted, and a card slot 23 through which the elastic arm 12 can be inserted is disposed on the other inner wall of the opening 21, thereby forming the buckle 11 and the bayonet 22 The connection structure and the connection structure formed by the elastic arm 12 and the card slot 23 realize the fixing of the filter strip. After the filter strip main body 1 is fixed, the elastic arm 12 is pressed and deformed by the card slot 23 to generate a resilience force acting on the buckle 11 to clamp the bayonet port 22.

Further, in the embodiment, the buckle 11 is matched with the bayonet 22 to improve the tightness of the buckle 11 and the bayonet 22, thereby improving the connection strength between the filter strip and the profile. Specifically, the buckle 11 is inclined from an inner side of the opening 21 to an outer side of the opening 21; the bayonet 22 is from an outer side of the opening 21 to the inside of the opening 21 Side tilt. In this design, when the elastic force of the elastic arm 12 is assembled, the buckle 11 can be obliquely inserted into the bayonet 22 to form a mutual fastening structure, thereby effectively preventing the buckle 11 from coming off the bayonet 22, and at the same time, due to the buckle The side surface of the opening 21 is a beveled surface, which facilitates the pushing of the buckle 11 into the bayonet 22.

Further, in this embodiment, the elastic arm is bent from the inner side of the opening toward the outer side of the opening. Such a design, on the one hand, facilitates the expansion of the elastic arm 12 into the narrow opening 21 of the profile body 2 and into the card slot 23, and on the other hand, provides the initial elastic deformation direction of the elastic arm 12, so that the elastic arm 12 produces The elastic force is better transmitted to the buckle 11, and the bayonet 22 is clamped. Thereby, under the repulsive force of the elastic arm 12, the force that the filter strip main body 1 is formed to incline from the inner side of the opening 21 to the outer side of the opening 21 acts on the snap-in insertion insertion opening 22, and the force is The direction is the same as the tilt direction of the buckle, thereby achieving the concentration of the clamping force and improving the reliability of the filter strip and the connection of the profile.

Further, in this embodiment, the card slot 23 is provided with a protrusion 24 (ie, the e position in FIG. 5) on the inner side of the opening 21, and the protrusion 24 abuts against the elastic arm 12 A convex surface of the curved portion, and a space under the protrusion 24 for compressive deformation of the elastic arm 12 is formed. Such a design allows the elastic arm 12 to be constrained at the e position, which facilitates the deformation of the compression spring arm 12 within the card slot 23.

Further, in the embodiment, the buckle 11 and the elastic arm 12 are integrally formed on the filter strip main body 1 , and the structure is simple and easy to shape.

Further, in the embodiment, the end surface of the filter strip main body 1 located outside the opening 21 is flush with the end surface of the opening 21, and the processability is good, which is favorable for light emission.

As shown in FIG. 2 to FIG. 5, during assembly, the elastic arm 12 of the first filter strip is inserted into the slot 23 of the profile, and then the buckle 11 of the filter strip is pushed into the interior of the profile and snapped into the bayonet 22 of the profile. And the clamping force is provided by the elastic deformation of the elastic arm 12, and the buckle 11 is clamped in the bayonet 22 to complete the assembly of the filter strip; the whole assembly process is simple, the influence of the length of the profile is small, and the assembly can be quickly assembled by tools. Moreover, since the existing solution is to provide the clamping force of the filter strip by the interference assembly, the clamping force is often not limited by the interference, and the elastic deformation of the structure of the elastic arm 12 becomes the buckle 11 in this embodiment. Provides clamping force and higher reliability. It should be noted that, as shown in FIG. 5, the constraint state after the filter strip is assembled is shown in the figure. In this embodiment, the filter strip is subject to five positions (see arrows a, b, c, d, e). In existing constructions, there is often no constraint, or the restraint is achieved by clamping the profile opening 21 only at the a and d positions. According to the structural characteristics of the profile, the dimensional tolerances of the opening 21 of the profile are not easily controlled, and accordingly the constraints of the a and d positions are also susceptible to failure. The structure of the embodiment increases the constraints of the b, c, and e positions on the basis of the constraints of the positions a and d, realizes the constraint on the multi-position of the filter strip, reduces the sensitivity to the dimensional tolerance, and effectively prevents the component from being affected. The tolerance of the filter causes the filter rod to loosen.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Therefore, the equivalent changes made according to the scope of the present invention are still covered by the present invention. range.

Claims

A fixing structure of a filter strip, comprising: a filter strip main body and a profile main body, wherein one end of the filter strip main body is provided with a buckle, and the other end of the filter strip main body is provided with an elastic arm. The main body of the profile is provided with an opening for the filter strip main body, and one side inner wall of the opening is provided with a bayonet for the clip to be engaged, and the other side inner wall of the opening is provided There is a card slot for inserting the elastic arm, and after the filter strip main body is fixed, the elastic arm is pressed and deformed by the card slot to generate a resilience force acting on the buckle to clamp the bayonet.
The fixing structure of the filter strip according to claim 1, wherein the buckle is shaped to fit the bayonet.
A fixing structure for a filter strip according to claim 2, wherein said buckle is inclined from an inner side of said opening toward an outer side of said opening; said bayonet opening from said outer side of said opening toward said opening The inside is tilted.
The fixing structure of a filter strip according to claim 1, wherein the elastic arm is bent from an inner side of the opening toward an outer side of the opening.
The fixing structure of the filter strip according to claim 4, wherein the card slot is provided with a protrusion on a side of the inner side of the opening.
A fixing structure for a filter strip according to claim 5, wherein said projection abuts against a convex surface of a curved portion of said elastic arm.
The fixing structure of the filter strip according to claim 1, wherein the buckle is integrally formed with the filter strip main body.
The fixing structure of a filter strip according to claim 1, wherein the elastic arm is integrally formed with the filter strip main body.
The fixing structure of a filter strip according to claim 1, wherein an end surface of the filter strip main body located outside the opening is flush with an end surface of the opening.