CN211454064U - Elastic buckle structure of filter - Google Patents

Abstract

The utility model provides a structure is buckled to bullet of filter lens, including the camera lens, rotatable being provided with bottom plate subassembly on the camera lens, this bottom plate subassembly includes hollow first mirror holder, be provided with first pilot hole on this first mirror holder, one side bilateral symmetry of first mirror holder is provided with the first mounting groove that is linked together with first pilot hole, the gliding of first locking piece inlays and establishes in first mounting groove, first spring crimping is between first locking piece and first mounting groove, one side of first locking piece is provided with first supporting part, this first supporting part salient is in the inboard of first mounting groove, the tip of first supporting part is equipped with back-off portion, this back-off portion elasticity crimping is on the inboard screw thread of camera lens. The side walls of the upper side and the lower side of the first pressing part are respectively provided with a limiting groove, the inner walls of the upper side and the lower side of the first mounting groove are convexly provided with a first limiting boss corresponding to the limiting groove, and the limiting groove is slidably arranged on the first limiting boss. The utility model has the characteristics of easy operation, security performance are good.

Description

A filter buckle structure

technical field

The utility model relates to an elastic buckle structure of a filter.

Background technique

Chinese Patent Document No. CN209728391U on December 03, 2019 discloses a photographic camera filter structure, including a lens, characterized in that a filter assembly is provided on the lens, and the filter assembly includes a rotary adjustable filter assembly , the rotary adjustable filter assembly includes a hollow mainboard, the first filter is rotatably arranged on the mainboard through the first filter frame, the outer edge of the first filter frame protrudes outside the mainboard, the left and right sides of the mainboard A first installation groove is respectively provided, the first locking block is slidably embedded in the first installation groove, the first spring is crimped between the first locking block and the first installation groove, and one of the first locking blocks is A first locking hook is provided on the side, and the first locking hook protrudes from the side wall of the main board. The first filter is rotatably clamped on the main board by the filter press ring and the first filter frame, the filter press ring is located on one side of the first filter frame, and the filter press ring is connected to the first filter frame. They are connected by threads or snaps; the main board is provided with an opening slot for accommodating the first filter frame. The connection between the filter assembly and the lens is less flexible and less stable, so it needs to be improved.

Utility model content

The purpose of this utility model is to provide an elastic buckle structure of a filter with easy operation and good safety performance, so as to overcome the deficiencies in the prior art.

According to this purpose, a filter buckle structure is designed, including a lens, and its structural feature is that a bottom plate assembly is rotatably provided on the lens, and the bottom plate assembly includes a hollow first mirror frame, and the first mirror frame is on the A first assembly hole is provided, one side of the first frame is symmetrically provided with a first installation slot communicated with the first assembly hole, the first lock block is slidably embedded in the first installation slot, and the first spring pressure Connected between the first lock block and the first installation groove, one side of the first lock block is provided with a first support portion, the end of the first support portion is provided with an undercut portion, and the undercut portion is elastically crimped on the thread on the inside of the lens.

Further, the first assembly hole is provided with a first assembly groove for fixing the filter along the circumference of its inner wall, and the first assembly groove is communicated with the first installation groove; the other side of the first lock block is provided with a first assembly groove. a pressing part, the first pressing part is embedded in the first installation groove, the first installation groove is provided with a first movable groove, and the first pressing part is provided with a first pin communicated with the first movable groove The first positioning pin is inserted into the first pin hole and the first movable slot and is slidably arranged at the left and right ends of the first movable slot; the first installation slot is also provided with more than one first connection boss, the first The connecting boss is located beside the first movable groove, one end of the first spring is connected with the first connecting boss, and the other end of the first spring is connected with the first locking block; the other side of the first mirror frame is arranged symmetrically from left to right There is a first connecting groove, and the first connecting groove is arranged along the vertical direction of the first mirror frame.

Further, limit slots are respectively provided on the side walls of the upper and lower sides of the first pressing portion, and first limit bosses corresponding to the limit slots are protruded from the inner walls of the upper and lower sides of the first installation slot. It is slidably arranged on the first limit boss.

Further, a filter assembly is arranged on the base plate assembly, and the filter assembly includes a hollow second mirror frame, the second mirror frame is slidably arranged on the first mirror frame, and a second mirror frame is arranged on the second mirror frame An assembly hole, one side of the second frame is symmetrically provided with an opening communicating with the second assembly hole, the second lock block is slidably embedded in the opening, and the second spring is crimped between the second lock block and the opening One side of the second lock block is provided with a second support portion, the second support portion protrudes from the inner side of the opening and is elastically crimped on the first frame.

Further, the second assembling hole is provided with a second assembling groove for fixing the filter along the circumference of the inner wall thereof, and the second assembling groove is communicated with the opening; the opening is adjacently provided with a second installing groove and a third installing groove The third installation groove is located inside the second installation groove, the second support part is embedded in the third installation groove and one end of the second support part protrudes from the inner side of the third installation groove, and the other end of the second support part is crimped on the third installation groove. On a connecting groove, a second pressing part is arranged on the other side of the second locking block, and the second pressing part is embedded in the second installation groove.

Further, the second installation groove is provided with a second movable groove, the second pressing portion is provided with a second pin hole communicated with the second movable groove, and the second positioning pin is inserted into the second pin hole and the second movable groove. The groove is slidably arranged on the left and right ends of the second movable groove; the third installation groove is provided with a second connection boss, one end of the second spring is connected with the second connection boss, and the other end of the second spring is connected with the second connection boss. The two lock blocks are connected.

Further, the elastic buckle structure of the filter further includes a connecting piece, the connecting piece is sleeved on the outer periphery of the filter, and the connecting piece with the filter is clamped in the second assembling groove.

Further, the second mirror frame is slidably arranged in the first connecting groove, the top of one side of the second mirror frame is provided with a second limiting boss corresponding to the first connecting groove, and the second limiting boss is crimped on the The top of the first connecting groove; the other side of the second mirror frame is provided with a second connecting groove symmetrically on the left and right, and the second connecting groove is arranged along the vertical direction of the second mirror frame.

Further, the first assembly hole is also provided with a filter installation groove, the filter installation groove is located on one side of the first assembly groove and communicated with the first installation groove, and the filter is arranged in the filter installation groove.

Further, the filter is any one or a combination of any two or more of a polarizer, a colored filter, a dimming filter and a gradient filter, and the filter is in a square, circular or oval shape.

The lens of the present invention is rotatably provided with a bottom plate assembly, the bottom plate assembly includes a hollow first mirror frame, the first mirror frame is provided with a first assembly hole, and the first assembly hole is arranged along the circumference of the inner wall thereof There is a first assembly groove for fixing the first frame or the lens, a first installation groove communicated with the first assembly groove is symmetrically arranged on one side of the first lens frame, and the first lock block is slidably embedded in the first assembly groove. In the installation groove, the first spring is crimped between the first lock block and the first installation groove, and one side of the first lock block is provided with a first support portion, the first support portion protrudes from the inner side of the first installation groove, The end of the first support portion is provided with an undercut portion, and the undercut portion is elastically crimped on the inner thread of the lens.

When it is necessary to connect the first lens frame to the lens, first grab the first lens frame by hand and press the first lock block located in the first installation groove with two fingers respectively, and then the first support on the first lock block Push inward and make it protrude from the inner side of the first installation slot. At this time, the first spring is in a squeezed state, and then the first lens frame is sleeved on the lens through the first assembly hole and the first lock block is released. , at this time, the first spring is reset due to the elastic action, the first lock block moves to the outside of the first installation slot under the elastic action of the first spring, and the undercut portion at the end of the first support portion is crimped and hooked on the lens. on the inner thread of the lens, so as to complete the connection between the first lens frame and the lens. The method of elastically supporting and fixing the inner thread of the lens through the inverted part on the first lock block not only improves the assembly efficiency, but also makes the connection between the first lens frame and the lens more stable, preventing the first lens frame Shake and fall off during use, thereby increasing the safety performance of this product and ensuring the photographing effect of this product.

The use of the first spring can play an elastic buffering performance, which can reduce the wear of the first lock block during operation and reduce the noise of the collision between the first lock block and the first installation groove, and the first spring makes the first lock block in the During the working process, it is kept fastened for a long time, so that the first lock block can better support and fix the lens. Compared with the common fasteners on the market, this product is more flexible and has a longer service life.

Because the first lens frame is provided with a first assembly hole, the second lens frame is set on the first lens frame, the first lens frame drives the second lens frame to rotate along the lens through the first assembly hole, and the filter is set on the second lens frame. At the same time, the second mirror frame can be slid up and down on the first mirror frame, and the angle and position of the filter can be adjusted by rotating the first mirror frame along the lens and the second mirror frame sliding up and down along the first mirror frame. For the purpose of better adjusting the photo brightness, this operation process is simple and fast, thus improving the flexibility of this product.

The other side of the first lock block in the present invention is provided with a first pressing part, the first pressing part is embedded in the first installation groove, the first installation groove is provided with a first movable groove, the first The pressing part is provided with a first pin hole communicating with the first movable slot, and the first positioning pin is inserted into the first pin hole and the first movable slot and is slidably arranged at the left and right ends of the first movable slot. Through the limiting function of the first movable slot, when the first lock block supports and fixes the lens, the position of the first lock block relative to the first movable slot can be properly adjusted according to the actual situation such as the size of the lens. The slot plays a limiting role to ensure that the first lock block will not be separated from the first frame under the reset process of the first spring, thereby improving the stability and application range of the product.

A filter assembly is arranged on the bottom plate assembly of the present invention, and the filter assembly includes a hollow second mirror frame, the second mirror frame is slidably arranged on the first mirror frame, and the second mirror frame is provided with a first mirror frame. Two assembling holes, one side of the second mirror frame is symmetrically provided with an opening communicating with the second assembling hole, the second lock block is slidably embedded in the opening, and the second spring is crimped between the second lock block and the opening In between, a second support portion is provided on one side of the second lock block, and the second support portion protrudes from the inner side of the opening and is elastically crimped on the first frame. When the second mirror frame is connected to the first mirror frame, first grab the second mirror frame by hand and press the second lock block located in the opening with two fingers respectively, and push the second support part on the second lock block towards the Push it in and make it protrude from the inside of the opening. At this time, the second spring is in a squeezed state, and then insert the second frame from top to bottom into the first connecting slot on the first frame and release the second lock At this time, the second spring is reset due to the elastic action, the second lock block moves to the outside of the opening under the elastic action of the second spring, and the other end of the second support portion is supported outward and is crimped on the first connection groove. , so as to complete the connection between the second frame and the first frame.

In the present invention, the second mirror frame is slidably arranged in the first connecting groove, the top of one side of the second mirror frame is provided with a second limiting boss corresponding to the first connecting groove, and the second limiting boss is crimped. at the top of the first connection slot. The second mirror frame can slide up and down along the first mirror frame through the first connecting groove, and the second limiting boss is crimped on the top of the first connecting groove to prevent the second mirror frame from sliding down and falling off when the second mirror frame is adjusted. to the ground, thus enhancing the safety performance of this product.

The utility model has the characteristics of easy operation and good safety performance.

Description of drawings

FIG. 1 is a schematic diagram of an exploded structure of an embodiment of the present invention.

FIG. 2 is a schematic diagram of the exploded structure of the base plate assembly.

FIG. 3 is a schematic diagram of the exploded structure of the base plate assembly from another angle.

FIG. 4 is an enlarged view of part A in FIG. 2 .

FIG. 5 is a schematic three-dimensional structure diagram of a first lock block.

FIG. 6 is a schematic diagram of an exploded structure of the filter assembly.

FIG. 7 is an enlarged view of B in FIG. 6 .

FIG. 8 is a schematic three-dimensional structural diagram of the second lock block.

FIG. 9 is a schematic diagram of the assembly structure of the base plate assembly and the filter assembly.

FIG. 10 is a schematic diagram of the assembly structure of the base plate assembly and the filter assembly at another angle.

In the figure: 1 is the lens, 2 is the base plate assembly, 21 is the first frame, 21.1 is the first installation slot, 21.2 is the first limit boss, 21.3 is the first movable slot, 21.4 is the first connection boss, 22 is the first assembly hole, 22.1 is the first assembly groove, 23 is the first lock block, 23.1 is the first pin hole, 23.2 is the first support part, 23.3 is the first pressing part, 23.4 is the limit slot, 23.5 24 is the first positioning pin, 25 is the first spring, 27 is the first connecting groove, 3 is the filter assembly, 31 is the second frame, 31.1 is the second installation groove, 31.2 is the second movable 31.3 is the second connecting boss, 31.4 is the third installation slot, 32 is the second locking block, 32.1 is the second supporting part, 32.2 is the second pressing part, 32.3 is the second pin hole, 33 is the second Assembly hole, 33.1 is the second assembly groove, 34 is the second connection groove, 35 is the connecting piece, 36 is the second spring, 37 is the opening, 38 is the second limit boss, 39 is the second positioning pin, 4 is the filter.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

1-10, the snap-fit structure of the filter includes a lens 1, and its structural feature is that the lens 1 is rotatably provided with a base plate assembly 2, and the base plate assembly 2 includes a hollow first mirror frame 21, The first mirror frame 21 is provided with a first assembly hole 22 , one side of the first mirror frame 21 is symmetrically provided with a first installation groove 21.1 that communicates with the first assembly hole 22 , and the first lock block 23 is slidable. Set in the first installation groove 21.1, the first spring 25 is crimped between the first lock block 23 and the first installation groove 21.1. One side of the first lock block 23 is provided with a first support portion 23.2, the first support The end of the portion 23.2 is provided with an undercut portion 23.5, and the undercut portion 23.5 is elastically crimped on the inner thread of the lens 1 .

The first mounting hole 22 is provided with a first mounting groove 22.1 along the circumference of its inner wall for fixing the first lens frame 21 or the lens 1. The first mounting groove 22.1 communicates with the first mounting groove 21.1. The first lock The other side of the block 23 is provided with a first pressing portion 23.3. The first pressing portion 23.3 is embedded in the first installation groove 21.1. The first installation groove 21.1 is provided with a first movable groove 21.3. The portion 23.3 is provided with a first pin hole 23.1 that communicates with the first movable slot 21.3, and the first positioning pin 24 is inserted into the first pin hole 23.1 and the first movable slot 21.3 and is slidably arranged on the left and right sides of the first movable slot 21.3. The first installation groove 21.1 is also provided with more than one first connection boss 21.4, the first connection boss 21.4 is located beside the first movable groove 21.3, and one end of the first spring 25 is connected to the first connection boss 21.4 The other end of the first spring 25 is connected to the first lock block 23 ; the other side of the first mirror frame 21 is provided with a first connecting groove 27 symmetrically left and right, and the first connecting groove 27 is along the first mirror frame 21 vertical orientation setting.

In this embodiment, the thread of the lens 1 abuts on the first assembling groove 22.1 to limit the position, preventing the first lens frame 21 from passing through the lens and detaching.

Limiting grooves 23.4 are respectively provided on the upper and lower side walls of the first pressing portion 23.3, and first limiting bosses 21.2 corresponding to the limiting grooves 23.4 are protruded from the inner walls of the upper and lower sides of the first installation groove 21.1. The limiting groove 23.4 is slidably arranged on the first limiting boss 21.2.

The bottom plate assembly 2 is provided with a filter assembly 3, the filter assembly 3 includes a hollow second mirror frame 31, the second mirror frame 31 is slidably arranged on the first mirror frame 21, and the second mirror frame 31 A second assembly hole 33 is provided on the top, and an opening 37 communicating with the second assembly hole 33 is symmetrically provided on one side of the second mirror frame 31. The second lock block 32 is slidably embedded in the opening 37, and the second spring 36 is crimped between the second lock block 32 and the opening 37, a second support portion 32.1 is provided on one side of the second lock block 32, the second support portion 32.1 protrudes from the inside of the opening 37 and is elastically crimped on the first on the frame 21.

The second assembly hole 33 is provided with a second assembly groove 33.1 along the circumference of its inner wall for fixing the filter 4, and the second assembly groove 33.1 communicates with the opening 37; the opening 37 is provided with a second installation groove adjacent to it 31.1 and a third installation groove 31.4, the third installation groove 31.4 is located on the inner side of the second installation groove 31.1, the second support portion 32.1 is embedded in the third installation groove 31.4 and its one end protrudes from the inner side of the third installation groove 31.4, The other end of the second supporting portion 32.1 is crimped on the first connecting groove 27, and the other side of the second locking block 32 is provided with a second pressing portion 32.2, the second pressing portion 32.2 is embedded in the second mounting groove 31.1.

The second installation groove 31.1 is provided with a second movable groove 31.2, the second pressing portion 32.2 is provided with a second pin hole 32.3 communicating with the second movable groove 31.2, and the second positioning pin 39 is inserted into the second pin hole 32.3 and the second movable groove 31.2 are slidably arranged at the left and right ends of the second movable groove 31.2; the third installation groove 31.4 is provided with a second connecting boss 31.3, and one end of the second spring 36 is connected to the second connecting boss 31.3 In connection, the other end of the second spring 36 is connected with the second locking block 32 .

The elastic buckle structure of the filter further includes a connecting piece 35, the connecting piece 35 is sleeved on the outer periphery of the filter 4, and the connecting piece 35 with the filter 4 is clamped in the second assembling groove 33.1.

In this embodiment, the connecting pieces 35 are two pieces and are sleeved on the filter 4 symmetrically up and down.

The top of one side of the second mirror frame 31 is provided with a second limiting boss 38 corresponding to the first connecting groove 27, and the second limiting boss 38 is crimped on the top of the first connecting groove 27; the second mirror The other side of the frame 31 is symmetrically provided with a second connection groove 34 , and the second connection groove 34 is arranged along the vertical direction of the second mirror frame 31 .

In this embodiment, the first connecting groove 27 and the second connecting groove 34 are dovetail grooves. When the second mirror frame is set in the first connecting groove, the side wall of the second mirror frame is limited by the dovetail groove, which prevents the second mirror frame from being pulled out from the first connecting groove from the front, thereby Increased the safety performance of this product.

The first assembly hole 22 is also provided with a filter installation slot, the filter installation slot is located on one side of the first assembly slot 22.1 and communicated with the first installation slot 21.1, and the filter 4 is arranged in the filter installation slot .

The filter 4 is any one or a combination of any two or more of a polarizer, a colored filter, a dimming filter and a gradient filter, and the filter 4 is in a square, circular or oval shape.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and Therefore, it should not be construed as a limitation to the present invention. The terms "first" and "second" are only used for description purposes, and should not be interpreted as indicating or implying relative importance or the number of indicated technical features.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. An elastic buckle structure of a filter, comprising a lens (1), characterized in that a base plate assembly (2) is rotatably provided on the lens (1), and the base plate assembly (2) comprises a hollow first mirror A frame (21), the first lens frame (21) is provided with a first assembly hole (22) for connecting the lens (1), and one side of the first lens frame (21) is symmetrically provided with the first assembly hole (22) The connected first installation groove (21.1), the first lock block (23) is slidably embedded in the first installation groove (21.1), and the first spring (25) is pressed against the first lock block (23) ) and the first installation groove (21.1), a first support part (23.2) is provided on one side of the first lock block (23), the first support part (23.2) protruding from the first installation groove (21.1) On the inner side, the end of the first support portion (23.2) is provided with an undercut portion (23.5), and the undercut portion (23.5) is elastically crimped on the inner thread of the lens (1). 2. The buckle structure of the filter according to claim 1, characterized in that the first assembling hole (22) is provided with a hole for fixing the first frame (21) or the lens (1) along the circumference of its inner wall. a first assembly groove (22.1), the first assembly groove (22.1) communicates with the first installation groove (21.1); the other side of the first lock block (23) is provided with a first pressing part (23.3), the The first pressing portion (23.3) is embedded in the first mounting groove (21.1), the first mounting groove (21.1) is provided with a first movable groove (21.3), and the first pressing portion (23.3) is provided with a The first pin hole (23.1) communicated with the first movable groove (21.3), the first positioning pin (24) is inserted into the first pin hole (23.1) and the first movable groove (21.3) and is slidably arranged in the first movable groove The left and right ends of (21.3); the first installation groove (21.1) is also provided with one or more first connection bosses (21.4), and the first connection bosses (21.4) are located beside the first movable groove (21.3) , one end of the first spring (25) is connected with the first connecting boss (21.4), the other end of the first spring (25) is connected with the first locking block (23); the other end of the first frame (21) A first connecting groove (27) is symmetrically disposed on one side from left to right, and the first connecting groove (27) is disposed along the vertical direction of the first mirror frame (21). 3. The elastic buckle structure of the filter according to claim 2 is characterized in that limit slots (23.4) are respectively provided on the side walls of the upper and lower sides of the first pressing portion (23.3), and the first installation slot ( 21.1) First limit bosses (21.2) corresponding to the limit grooves (23.4) are protruded from the inner walls of the upper and lower sides, and the limit grooves (23.4) are slidably arranged on the first limit bosses (21.2). 4. The elastic buckle structure of the filter according to claim 2 is characterized in that a filter assembly (3) is provided on the bottom plate assembly (2), and the filter assembly (3) comprises a hollow second mirror frame (31), the second mirror frame (31) is slidably arranged on the first mirror frame (21), the second mirror frame (31) is provided with a second assembly hole (33), and the second mirror frame (31) ) is symmetrically provided with an opening (37) communicating with the second assembly hole (33), the second locking block (32) is slidably embedded in the opening (37), and the second spring (36) is crimped Between the second lock block (32) and the opening (37), a second support portion (32.1) is provided on one side of the second lock block (32), and the second support portion (32.1) protrudes from the opening (37) The inner side of the frame is elastically crimped on the first frame (21). 5. The snap-fit structure of the filter according to claim 4, characterized in that the second assembly hole (33) is provided with a second assembly groove (33.1) for fixing the filter (4) along the circumference of the inner wall of the second assembly hole (33) , the second mounting groove (33.1) communicates with the opening (37); the opening (37) is provided with a second mounting groove (31.1) and a third mounting groove (31.4) adjacent to it, the third mounting groove (31.4) Located inside the second installation groove (31.1), the second support part (32.1) is embedded in the third installation groove (31.4) and one end of the second support part (32.1) protrudes from the inner side of the third installation groove (31.4). ) is crimped on the first connecting groove (27), the other side of the second locking block (32) is provided with a second pressing part (32.2), the second pressing part (32.2) is embedded in the in the second mounting groove (31.1). 6. The elastic buckle structure of the filter according to claim 5, characterized in that the second installation groove (31.1) is provided with a second movable groove (31.2), and the second pressing portion (32.2) is provided with a second movable groove (31.2). The second pin hole (32.3) communicated with the second movable slot (31.2), the second positioning pin (39) is inserted into the second pin hole (32.3) and the second movable slot (31.2) and is slidably arranged in the second movable slot (31.2) The left and right ends of the groove (31.2); the third installation groove (31.4) is provided with a second connection boss (31.3), one end of the second spring (36) is connected with the second connection boss (31.3), the second The other end of the spring (36) is connected with the second locking block (32). 7. The elastic buckle structure of the filter according to claim 5, wherein the second mirror frame (31) is slidably arranged in the first connecting groove (27), and the second mirror frame (31) side is slidably arranged in the first connecting groove (27). The top is provided with a second limiting boss (38) corresponding to the first connecting groove (27), and the second limiting boss (38) is crimped on the top of the first connecting groove (27); the second mirror frame ( The other side of 31) is provided with a second connecting groove (34) symmetrically from left to right, and the second connecting groove (34) is disposed along the vertical direction of the second mirror frame (31). 8. The elastic buckle structure of the filter according to claim 5 is characterized in that it further comprises a connecting piece (35), and the connecting piece (35) is sleeved on the outer periphery of the filter (4), with the filter (4) The connecting piece (35) is clamped in the second assembly groove (33.1). 9. The elastic buckle structure of the filter according to claim 5, characterized in that the first assembly hole (22) is further provided with a filter installation groove, and the filter installation groove is located in the first assembly groove (22.1) The filter (4) is set in the filter mounting slot. 10. The elastic buckle structure of the filter according to claim 5 or 9, wherein the filter (4) is any one or any two of a polarizer, a colored filter, a dimming mirror and a gradient mirror Combining the above, the filter (4) is in the shape of a square, a circle or an ellipse.

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