Switching structure, switching ring and matching part

Abstract

The utility model relates to the technical field of camera shooting equipment, in particular to a switching structure, a switching ring and a matching part, one of the inner peripheral wall of the switching ring and the outer peripheral wall of the matching part is provided with an elastic limiting piece, a part of the structure of the elastic limiting piece protrudes out of the inner peripheral wall or the outer peripheral wall, and the elastic limiting piece is provided with a through hole. The other one of the outer peripheral wall of the matching part and the inner peripheral wall of the adapter ring is provided with a limiting groove, the inner groove wall on one side of the limiting groove is provided with a first extrusion surface, and the first extrusion surface is used for extruding the elastic limiting piece; wherein the switching structure has an assembly state, and in the assembly state, part of the structure of the elastic limiting piece is clamped in the limiting groove. According to the technical scheme, the adapter ring can be quickly detached from the matching part through the elastic limiting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of camera equipment, in particular to a switching structure, a switching ring and a matching part. Background Art

[0002] In camera equipment, such as smartphones, in order to achieve ideal film-producing effects, a filter is usually extended to the lens of the phone to achieve better shooting effects. In order to fix the filter to the lens, an adapter structure or adapter device is usually first used to fix it to the shell structure, and then the filter is fixed to the adapter structure and aligned with the camera lens of the phone.

[0003] In the related art, the adapter structure includes an adapter ring and a mating part, the mating part is fixed on the shell of the camera device (it can be understood that the shell of the camera device refers to a structure separately added to the camera device, such as a protective case of a mobile phone, such as a mobile phone case or a mobile phone cage or a camera cage, etc.), the adapter ring is connected to the mating part, and the filter is fixed on the adapter ring. In this connection state, because the adapter ring and the mating part are mostly detachably mated by using a threaded or magnetic connection method, the utility model intends to provide a new structural solution. Utility Model Content

[0004] The main purpose of the utility model is to provide an adapter structure, which is intended to quickly disassemble an adapter ring from a mating portion.

[0005] To achieve the above-mentioned purpose, an elastic limiting member is provided on one of the inner circumferential wall of the adapter ring or the outer circumferential wall of the matching portion, and a portion of the structure of the elastic limiting member protrudes from the inner circumferential wall or the outer circumferential wall. A limiting groove is provided on the outer circumferential wall of the matching portion or the inner circumferential wall of the adapter ring, and a first extrusion surface is provided on the inner groove wall on one side of the limiting groove, and the first extrusion surface is used to squeeze the elastic limiting member.

[0006] The transition structure has an assembled state, in which a portion of the elastic limiting component is clamped in the limiting groove.

[0007] In one embodiment of the present invention, the elastic limiting member is arranged on the inner peripheral wall of the adapter ring, and the limiting groove is arranged on the outer peripheral wall of the mating portion; wherein, the first extrusion surface is provided on the side of the inner groove wall of the limiting groove facing the shell structure, and in the assembled state, the elastic limiting member abuts against the first extrusion surface close to one end of the shell structure.

[0008] In one embodiment of the present invention, the elastic limiting member is a bent rigid wire body, the adapter ring is provided with a locking groove, the inner circumferential wall of the adapter ring is provided with a first notch connected to the locking groove, the bent rigid wire body is movably arranged in the locking groove and abuts against the groove wall of the locking groove; part of the structure of the bent rigid wire body protrudes from the first notch so that it can extend into the limiting groove.

[0009] In one embodiment of the present invention, the cross section of the first notch is smaller than the cross section of the positioning groove; the curved rigid wire body is provided with a rounded transition section, and the rounded transition section abuts against the end of the first notch and connects to the positioning groove.

[0010] In one embodiment of the present invention, the curved rigid wire body includes a first movable end and a second movable end both located in the positioning groove, and the first movable end faces toward and is spaced from the second movable end;

[0011] And / or, a second notch is provided on the outer peripheral wall of the adapter ring, and the second notch is connected to the locking groove;

[0012] In the assembled state, a portion of the curved rigid wire body away from the first notch is confined within the second notch.

[0013] In one embodiment of the present invention, the matching portion is provided with a second extrusion surface, which is provided on a side of the matching portion facing away from the housing structure, and the second extrusion surface can abut against the curved rigid wire body.

[0014] In one embodiment of the present invention, the second extrusion surface is inclined along the direction from away from the shell structure to close to the shell structure, so that the cross-section of the part of the matching portion away from the shell structure gradually increases along the direction from away from the shell structure to close to the shell structure.

[0015] In one embodiment of the present utility model, the mating portion includes a connecting lower portion, a limiting middle portion, and an extruding upper portion connected in sequence, and the cross-sectional areas of the connecting lower portion, the limiting middle portion, and the extruding upper portion are defined as A1, A2, and A3, respectively, with A1>A3>A2; the connecting lower portion, the limiting middle portion, and the extruding upper portion enclose the limiting groove, the first extruding surface is provided on the side of the extruding upper portion facing away from the camera device, and the second extruding surface is provided on the side of the extruding upper portion facing the camera device; a buckling step is provided at the bottom of the adapter ring, and the buckling step includes a first buckling surface and a second buckling surface connected to the first buckling surface;

[0016] In the assembled state, the first buckling surface abuts the end surface of the connecting lower part facing away from the shell structure, the second buckling surface abuts the outer peripheral surface of the connecting lower part, and the curved rigid body abuts the extrusion upper part facing the first extrusion surface.

[0017] The utility model also proposes an adapter ring, wherein a curved rigid wire body is provided inside the inner peripheral wall of the adapter ring, and a part of the structure of the curved rigid wire body protrudes from the inner peripheral wall of the adapter ring, and the curved rigid wire body is used for snap-fitting with the limiting groove of the fitting part.

[0018] The present invention further proposes a matching portion, wherein the outer peripheral wall of the matching portion is provided with a limiting groove, and the limiting groove is used for clamping and matching the curved rigid wire body of the adapter ring.

[0019] In the technical solution of the present invention, the adapter structure includes an adapter ring and a matching part, the adapter ring is detachably connected to the matching part, and the adapter ring is used to connect the filter, wherein, one of the inner circumferential wall of the adapter ring or the outer circumferential wall of the matching part is provided with an elastic limiting piece, and a partial structure of the elastic limiting piece protrudes from the inner circumferential wall of the adapter ring or the outer circumferential wall of the matching part, and the other of the inner circumferential wall of the adapter ring or the outer circumferential wall of the matching part is provided with a limiting groove. When the adapter ring and the matching part are assembled, the adapter ring moves toward the matching part. During this movement, the edge of the matching part first squeezes the elastic limiting piece to elastically deform and retreat a certain distance, and then the elastic limiting piece faces the limiting groove, and the elastic limiting piece loses the extrusion constraint of the matching part, and under its own elastic potential energy The adapter ring and the matching part are fixed to each other and enter an assembled state. When the adapter ring needs to be disassembled, a force is applied to the matching part toward the back of the camera device. The elastic property of the elastic limiter is utilized, and the first extrusion surface can squeeze the elastic limiter to make the elastic limiter withdraw from the limiter groove, thereby releasing the fixed constraint between the adapter ring and the matching part and achieving the effect of quick disassembly. The new scheme of the utility model can overcome the disadvantages of the troublesome installation of threaded tightening (threaded connection method, if the thread is occupied by particles of dust, it will also get stuck and the connection will not be smooth), and can also overcome the disadvantage of the magnetic suction installation that is easy to fall off when touched by mistake. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the camera housing provided by the utility model;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of an embodiment of the adapter structure provided by the present utility model;

[0023] Figure 3 for Figure 2 Structural explosion diagram;

[0024] Figure 4 for Figure 2 Sectional view along line AA;

[0025] Figure 5 An axial cross-sectional view of an embodiment of the adapter structure provided by the present utility model;

[0026] Figure 6 A schematic diagram of the three-dimensional structure of an embodiment of the matching portion provided by the present invention;

[0027] Figure 7 This is a structural diagram of an adapter ring according to an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Cross-sectional view along line CC.

[0029] Description of Figure Numbers:

[0030] 10. Adapter ring; 10a. Positioning groove; 10b. First notch; 10c. Second notch; 101. Snap-fit ​​step; 102. First snap-fit ​​surface; 103. Second snap-fit ​​surface; 20. Fitting portion; 20a. Limiting groove; 20b. First extrusion surface; 20c. Second extrusion surface; 202. Connecting lower portion; 203. Limiting middle portion; 204. Extrusion upper portion; 30. Elastic limiting member; 300. Bent rigid wire; 301. Rounded transition section; 302. First movable end; 303. Second movable end; 1000. Connecting shell; 1001. Convex ring structure.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Please refer to Figures 1 to 8 An elastic limiting member is provided on one of the inner circumferential wall of the adapter ring 10 or the outer circumferential wall of the matching portion 20. Part of the structure of the elastic limiting member 30 protrudes from the inner circumferential wall or the outer circumferential wall. A limiting groove 20a is provided on the outer circumferential wall of the matching portion 20 or the inner circumferential wall of the adapter ring 10. A first extrusion surface 20b is provided on the inner groove wall on one side of the limiting groove 20a. The first extrusion surface 20b is used to squeeze the elastic limiting member 30.

[0036] The transition structure has an assembled state. In the assembled state, a portion of the elastic limiting member 30 is locked in the limiting groove 20 a.

[0037] In the technical solution of the present invention, the adapter structure includes an adapter ring 10 and a matching part 20, the adapter ring 10 is detachably connected to the matching part 20, and the adapter ring 10 is used to connect the filter, wherein the inner circumferential wall of the adapter ring 10 or the outer circumferential wall of the matching part 20 is provided with an elastic limiter 30, and a partial structure of the elastic limiter 30 protrudes from the inner circumferential wall of the adapter ring 10 or the outer circumferential wall of the matching part 20, and the other of the inner circumferential wall of the adapter ring 10 or the outer circumferential wall of the matching part 20 is provided with a limit groove 20a. When the adapter ring 10 and the matching part 20 are assembled, the adapter ring 10 moves toward the matching part 20. During this movement, the matching part 20 first squeezes the elastic limiter 30 back a certain distance, and then the elastic limiter 30 aligns with the limit groove 20a. The elastic limiter 30 loses the extrusion constraint of the matching part 20 and recovers under its own elastic potential energy. The adapter ring 10 and the mating part 20 are fixed to each other and enter an assembled state. When the adapter ring 10 needs to be disassembled, a force is applied to the mating part 20 toward the back of the camera device. By utilizing the elastic properties of the elastic limit member 30, the first extrusion surface can squeeze the elastic limit member 30 to make the elastic limit member 30 exit the limit groove 20a, thereby releasing the fixed constraint between the adapter ring 10 and the mating part 20 and achieving the effect of quick disassembly. In the present technical solution, it is only necessary to ensure that the elastic limit member 30 can be engaged with or disengaged from the limit groove 20a during the process of the adapter ring 10 connecting to or disengaging from the mating part 20. There is no need to restrict the elastic limit member 30 on the adapter ring 10 or the mating part 20. It can be adaptively adjusted according to actual needs and is not limited here.

[0038] First of all, it needs to be explained that the adapter structure proposed in the present invention can be applied to mobile terminals with shooting functions, such as smart phones, tablet computers and SLR cameras. A shell structure (such as a protective case, mobile phone or camera cage, etc.) is provided on the mobile terminal, and the matching part 20 can be arranged at the installation position of the corresponding lens of the protective case by bonding, snapping, threading, welding or integrated molding, so that when the filter is installed on the adapter ring 10, the lens corresponds to the filter, and the required shooting effect is achieved.

[0039] In this embodiment, the adapter ring 10 is provided with a slot structure that can accommodate the elastic limit member 30. The slot structure has at least one notch, which allows part of the structure of the elastic limit member 30 to extend into the hollow annular space of the adapter ring 10. Furthermore, a notch can be provided at the bottom of the adapter ring 10, which allows the elastic limit member 30 to be installed into the adapter ring 10; the adapter ring 10 includes an integral annular upper part and an annular lower part, wherein the annular upper part can be used to install the filter, and the annular lower part can be used to install the elastic limit member 30, so as to avoid position interference between the installed filter and the protective shell, thereby reducing the shooting quality.

[0040] The mating portion 20 is a part of the shell structure; the mating portion 20 can be adaptively designed according to the shape of the shell structure. For example, in the present embodiment, the convex structure for aligning the lens of the mobile terminal in the shell structure is annular, and the shape of the mating portion 20 is also set to annular according to the convex structure. At this time, the lower structure of the adapter ring 10 used to connect the mating portion 20 is also set to annular to improve the assembly accuracy and the appearance beauty of the adapter structure; the outer peripheral wall of the mating portion 20 is provided with a limiting groove 20a, and the limiting groove 20a can be arranged around the outer peripheral wall of the mating portion 20 to form an annular structure connected end to end. A plurality of limiting grooves 20a arranged evenly spaced can also be provided on the outer peripheral wall of the mating portion 20, each limiting groove 20a is aligned with an elastic limiting member 30, so that each elastic limiting member 30 is stuck in the limiting groove 20a in the assembled state. It can be understood that no matter what the specific shape of the limiting groove 20a is, the plurality of elastic limiting members 30 provided on the adapter ring 10 can be stuck in the limiting groove 20a. Figure 3 and 5 As shown, in this embodiment, the limit groove 20a is a closed-loop structure connected end to end, and the adapter ring 10 is provided with three elastic limit members 30, and the three elastic limit members 30 are evenly spaced on the inner wall of the adapter ring 10, and each elastic limit member 30 is clamped in the limit groove 20a. Of course, for the sake of connection stability between the adapter ring 10 and the mating part 20, the number of elastic limit members 30 is any odd or even number greater than 2, and multiple elastic limit members 30 are evenly spaced.

[0041] The elastic limiter 30 can be elastic metal, or any material with elastic deformation function such as elastic plastic, and can be linear, sheet or block, or a combination thereof or any other shape that can achieve the same elastic deformation function. It is not limited here, and it only needs to satisfy that part of the structure of the elastic limiter 30 protrudes from the inner circumferential wall of the adapter ring 10. In this way, during the assembly of the adapter structure, the matching portion 20 can squeeze the elastic limiter 30 to make the elastic limiter 30 retreat a certain distance, and then the elastic limiter 30 is aligned with the limiting groove 20a and can rebound into the limiting groove 20a. Furthermore, in order to achieve the purpose of quickly disassembling the matching portion 20, the groove wall of the limiting groove 20a facing the shell structure is set as a first extrusion surface 20b. For example, when the elastic limiting member 30 is set to be sheet-shaped, the first extrusion surface 20b can be a planar structure with an inclined setting. Under the action of the component force applied by the first extrusion surface 20b to the elastic limiting member 30, the elastic limiting member 30 can be withdrawn from the limiting groove 20a. Similarly, when the elastic limiting member 30 is set to be rigid linear, the groove wall of the limiting groove 20a can be rounded to make the first extrusion surface 20b an arc surface structure, so that the elastic limiting member 30 can be withdrawn from the limiting groove 20a. Under the action of the first extrusion surface, there is no need to apply excessive pulling force to the outside, and the adapter ring 10 can be quickly disassembled from the mating part 20, thereby reducing the difficulty of disassembly. In the assembled state, the elastic limiting member 30 abuts against the first extrusion surface 20b at one end close to the shell structure, so that the elastic limiting member 30 can be prevented from moving upward.

[0042] In addition, in another embodiment, a limiting groove (not shown) is provided on the inner circumferential wall of the adapter ring. The limiting groove can be arranged around the inner circumferential wall of the adapter ring so that the limiting groove forms an annular structure connected end to end. A plurality of limiting grooves evenly spaced can also be provided on the outer circumferential wall of the mating portion, which is not limited here; an elastic limiting member (not shown) is provided on the outer circumferential wall of the mating portion. Specifically, a card slot structure that can accommodate the elastic limiting member is provided on the outer circumferential wall of the mating portion. The card slot structure has at least one notch, which allows part of the structure of the elastic limiting member to extend into the hollow annular space of the adapter ring. Furthermore, a notch can be provided at the bottom of the adapter ring, which allows the elastic limiting member to be installed in the mating portion of the adapter ring. It can be understood that In order to ensure that each elastic limit member can be clamped and fixed by the limit groove, if the inner wall of the adapter ring is provided with a plurality of evenly spaced limit grooves, the elastic limit members on the outer wall of the mating part should also be spaced, and the spacing angle between any two limit grooves should be consistent with the spacing angle between any two elastic limit members. In this way, each elastic limit member can be clamped and limited by a limit groove, thereby realizing the clamping and fixation between the adapter ring and the mating part; if the limit groove is arranged around the inner wall of the adapter ring to form an annular structure connected end to end, and there is no need to limit the spacing angle between any two elastic limit members, at this time, each elastic limit member can be clamped and limited by the limit groove of the annular structure, thereby realizing the clamping and fixation between the adapter ring and the mating part.

[0043] To sum up, under the inventive concept based on the present technical solution, the inner circumferential wall of the adapter ring is provided with an elastic limit member or a limit groove, which is used to snap-fit ​​with the limit groove or elastic limit member provided on the outer circumferential wall of the mating part to realize the snap-fit ​​between the adapter ring and the mating part. Therefore, it is not limited here that the elastic limit member and the limit groove are respectively provided on the adapter ring and the mating part.

[0044] In one embodiment, if Figure 3 and Figure 5 As shown, the elastic limiting member 30 is a bent rigid body 300, the adapter ring 10 is provided with a locking groove 10a, and the inner wall of the adapter ring 10 is provided with a first notch 10b connected to the locking groove 10a. The bent rigid body 300 is movably arranged in the locking groove 10a and abuts against the groove wall of the locking groove 10a; part of the structure of the bent rigid body 300 protrudes from the first notch 10b so that it can extend into the limiting groove 20a.

[0045] In this embodiment, the adapter ring 10 is provided with three evenly spaced positioning grooves 10a, and the inner wall of the adapter ring 10 is provided with a first notch 10b connected to the positioning grooves 10a. A bent rigid body 300 is provided in each positioning groove 10a. By utilizing the bent structure of the bent rigid body 300, in the assembled state, the bent rigid body 300 will not be separated from the adapter ring 10 due to exiting the limiting groove 20a; in the non-assembled state, part of the structure of the bent rigid body 300 protrudes from the first notch 10b so that it can extend into the limiting groove 20a. At this time, the inner bottom wall of the first notch 10b supports part of the structure of the bent rigid body 300 to prevent the bent rigid body 300 from being separated from the adapter ring 10, thereby improving the position stability of the bent rigid body 300 on the adapter ring 10.

[0046] In one embodiment of the present invention, Figure 3 and Figure 5 As shown, the cross section of the first notch 10b is smaller than the cross section of the positioning groove 10a; the curved rigid wire body 300 is provided with a rounded transition section 301, which abuts against the end of the first notch 10b and connects to the positioning groove 10a.

[0047] In this embodiment, the cross-section of the first notch 10b is smaller than the cross-section of the positioning groove 10a, and the bending rigid wire body 300 is provided with two symmetrically arranged rounded transition sections 301. In the process of the bending rigid wire body 300 extending into or exiting the limiting groove 20a, each rounded transition section 301 abuts the end of the first notch 10b connected to the positioning groove 10a. In this way, the opposite components of force applied by the two groove walls to the bending rigid wire body 300 offset each other to prevent the bending rigid wire body 300 from moving in the circumferential direction in the positioning groove 10a, thereby preventing the bending rigid wire body 300 from detaching from the adapter ring 10. Moreover, due to the abutment relationship, it can also play a guiding deformation role on the bending rigid wire body 300.

[0048] In one embodiment of the present invention, Figure 2 As shown, the curved rigid body 300 includes a first movable end 302 and a second movable end 303, both of which are located in the locking groove 10a, and the first movable end 302 is oriented towards and spaced from the second movable end 303; the outer wall of the adapter ring 10 is provided with a second notch 10c, and the second notch 10c is connected to the locking groove 10a; in the assembled state, the part of the structure of the curved rigid body 300 away from the first notch 10b is confined to the second notch 10c.

[0049] In this embodiment, the first movable end 302 and the second movable end 303 are arranged at intervals to form a certain deformation gap, which provides a movable margin for the first movable end 302 and the second movable end 303 to move. In this way, the structural deformation caused by continued deformation after the first movable end 302 and the second movable end 303 come into contact can be prevented, thereby improving the service life of the bending rigid body 300; further, the outer peripheral wall of the adapter ring 10 is provided with a second notch 10c, and the second notch 10c is connected to the locking groove 10a. The cross-section of the second notch 10c is smaller than the cross-section of the locking groove 10a. By providing the second notch 10c, the deformation space provided by the adapter ring 10 for the bending rigid body 300 can be increased, so that after the adapter structure enters the assembly state, the part of the structure of the bending rigid body 300 away from the first notch 10b enters the second notch 10c, avoiding the fact that the space in the locking groove 10a is insufficient to provide sufficient deformation space for the bending rigid body 300, resulting in destructive structural deformation of the bending rigid body 300, thereby reducing the service life of the bending rigid body 300.

[0050] In one embodiment of the present invention, Figure 6 As shown, the mating portion 20 is provided with a second extrusion surface 20 c , which is provided on a side of the mating portion 20 facing away from the housing structure. The second extrusion surface 20 c can abut against the bent rigid body 300 .

[0051] In this embodiment, a side of the mating portion 20 facing away from the shell structure is chamfered so that the mating portion 20 forms a second extrusion surface 20c extending in the circumferential direction. Under the action of the second extrusion surface 20c, the mating portion 20 can abut against the partial structure of the bent rigid body 300 protruding from the inner circumferential wall of the adapter ring 10 and cause the partial structure to move toward the inner circumferential wall of the adapter ring 10. The adapter ring 10 continues to move downward, and the lower structure of the adapter ring 10 can align with the limiting groove 20a of the mating portion 20. When the bent rigid body 300 loses the restraining effect of the second extrusion surface 20c, under the action of its own elastic potential energy, the bent rigid body 300 undergoes a restorative deformation so that part of its structure is stuck in the limiting groove 20a and abuts against the first extrusion surface 20b.

[0052] In one embodiment of the present invention, Figure 6 As shown, the second extrusion surface 20c is tilted in the direction from away from the shell structure to close to the shell structure, so that the cross-section of the part of the matching portion 20 away from the shell structure gradually increases in the direction from away from the shell structure to close to the shell structure.

[0053] In this embodiment, the second extrusion surface 20c is inclined along the direction from away from the shell structure to close to the shell structure, so that the cross-section of the part of the structure of the mating portion 20 away from the shell structure gradually increases along the direction from away from the shell structure to close to the shell structure. In this way, the second extrusion surface 20c forms a flat guiding inclined surface, thereby improving the extrusion stability of the second extrusion surface 20c on the elastic limit member 30.

[0054] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, the mating portion 20 includes a connecting lower portion 202, a limiting middle portion 203, and an extruded upper portion 204 connected in sequence, and the cross-sectional areas of the connecting lower portion 202, the limiting middle portion 203, and the extruded upper portion 204 are defined as A1, A2, and A3, respectively, with A1>A3>A2; the connecting lower portion 202, the limiting middle portion 203, and the extruded upper portion 204 enclose a limiting groove 20a, a second extrusion surface 20c is provided on the side of the extruded upper portion 204 facing away from the camera device, and a first extrusion surface 20b is provided on the side of the extruded upper portion 204 facing the camera device; a buckling step 101 is provided at the bottom of the adapter ring 10, and the buckling step 101 includes a first buckling surface 102 and a second buckling surface 103 connected to the first buckling surface 102;

[0055] In the assembled state, the first locking surface 102 abuts against the end surface of the connecting lower part 202 facing away from the shell structure, the second locking surface 103 abuts against the outer peripheral surface of the connecting lower part 202, and the curved rigid body 300 abuts against the side of the extruded upper part 204 facing the connecting lower part 202.

[0056] In this embodiment, the matching portion 20 is a three-section structure, specifically a connecting lower portion 202, a limiting middle portion 203 and an extruding upper portion 204 connected in sequence, the cross-sectional area of ​​the connecting lower portion 202 is larger than the cross-sectional area of ​​the connecting lower portion 202, and the cross-sectional area of ​​the connecting lower portion 202 is larger than the cross-sectional area of ​​the limiting middle portion 203, forming an annular limiting groove 20a in sequence, wherein the side of the extruding upper portion 204 facing away from the camera device is provided with a second extruding surface 20c, and the side of the extruding upper portion 204 facing the camera device is provided with a first extruding surface 20b, and because the cross-sectional area of ​​the connecting lower portion 202 is larger than the cross-sectional area of ​​the connecting lower portion 202, the connecting lower portion 202 and the limiting A first-level stepped structure is formed between the middle parts 203. Furthermore, a first-level snap-fit ​​step 101 is provided at the bottom of the adapter ring 10. The snap-fit ​​step 101 includes a first snap-fit ​​surface 102 and a second snap-fit ​​surface 103 connected to the first snap-fit ​​surface 102. When the adapter ring 10 and the mating part 20 are assembled, the first snap-fit ​​surface 102 abuts against the end surface of the lower part 202 facing away from the shell structure, the second snap-fit ​​surface 103 abuts against the outer peripheral surface of the lower part 202, and the bent rigid body 300 abuts against the first extrusion surface 20b. In this way, the contact area between the adapter ring 10 and the mating part 20 is increased, the connection stability between the adapter ring 10 and the mating part 20 is improved, and the adapter ring 10 is prevented from continuing to move downward.

[0057] The present invention further provides an adapter ring 10 , which is used to connect to the matching portion 20 .

[0058] In one embodiment of the present invention, see Figure 7 、 Figure 8 and combined Figure 3 As shown, a curved rigid body 300 is provided inside the inner circumferential wall of the adapter ring 10 , and part of the structure of the curved rigid body 300 protrudes from the inner circumferential wall of the adapter ring. The curved rigid body 300 is used to snap-fit ​​with the limiting groove 20a of the mating portion 20 .

[0059] In this embodiment, the specific structure of the adapter ring 10 is described in the above embodiment. The adapter ring 10 in this embodiment can adopt all the technical features and structures of the adapter ring 10 in the above embodiment, and no further details will be given here. By providing a retaining groove 20a on the mating portion 20, the curved rigid wire 300 and the retaining groove 20a can be engaged and restrained, thereby achieving a secure engagement between the adapter ring 10 and the mating portion 20.

[0060] The present invention further provides a matching portion 20 , which is used to connect to the adapter ring 10 .

[0061] In one embodiment of the present invention, see Figure 6 and combined Figure 3As shown, a limiting groove 20 a is provided on the outer peripheral wall of the matching portion 20 , and the limiting groove 20 a is used for snap-fitting the curved rigid wire body 300 of the adapter ring 10 .

[0062] In this embodiment, the specific structure of the mating portion 20 is described in the above embodiment. The mating portion 20 in this embodiment can utilize all the technical features and structures of the mating portion 20 in the above embodiment, and will not be described in detail here. By providing the curved rigid wire 300 on the mating portion 10, the curved rigid wire 300 and the limiting groove 20a can be engaged and locked, thereby achieving a secure engagement between the adapter ring 10 and the mating portion 20.

[0063] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A switching structure, comprising a switching ring (10) and a matching portion (20), wherein the switching ring (10) is detachably connected to the matching portion (20), the switching ring (10) is used to connect a filter, and the matching portion (20) is a part of a connecting housing structure, characterized in that: An elastic limiting member (30) is provided on one of the inner peripheral wall of the adapter ring (10) or the outer peripheral wall of the matching portion (20), and a portion of the elastic limiting member (30) protrudes from the inner peripheral wall or the outer peripheral wall, and a limiting groove (20a) is provided on the outer peripheral wall of the matching portion (20) or the inner peripheral wall of the adapter ring (10); The transition structure has an assembled state, in which at least a portion of the structure of the elastic limiting member (30) is inserted into the limiting groove (20a).

2. The switching structure according to claim 1, wherein: The elastic limiting member (30) is provided on the inner peripheral wall of the adapter ring (10), and the limiting groove (20a) is provided on the outer peripheral wall of the matching portion (20); wherein, a first extrusion surface (20b) is provided on the side of the inner groove wall of the limiting groove (20a) facing the shell structure, and in the assembled state, the elastic limiting member (30) abuts against one end of the first extrusion surface (20b) close to the shell structure.

3. The switching structure according to any one of claims 1 or 2, characterized in that: The elastic limiting member (30) is a curved rigid body (300); the adapter ring (10) is provided with a locking groove (10a); the inner peripheral wall of the adapter ring (10) is provided with a first notch (10b) connected to the locking groove (10a); the curved rigid body (300) is movably arranged in the locking groove (10a) and abuts against the groove wall of the locking groove (10a); a part of the structure of the curved rigid body (300) protrudes from the first notch (10b) so as to be able to extend into the limiting groove (20a).

4. The switching structure according to claim 3, wherein: The cross section of the first notch (10b) is smaller than the cross section of the positioning groove (10a); the curved rigid wire body (300) is provided with a rounded transition section (301), and the rounded transition section (301) abuts against the end of the first notch (10b) and communicates with the positioning groove (10a).

5. The switching structure according to claim 3, wherein: The curved rigid wire body (300) comprises a first movable end (302) and a second movable end (303), both of which are located in the locking groove (10a), and the first movable end (302) faces and is spaced from the second movable end (303); And / or, the outer peripheral wall of the adapter ring (10) is provided with a second notch (10c), and the second notch (10c) is connected to the locking groove (10a); In the assembled state, the structural portion of the curved rigid wire body (300) away from the first notch (10b) is confined within the second notch (10c).

6. The switching structure according to claim 3, wherein: The matching portion (20) is provided with a second extrusion surface (20c), the second extrusion surface (20c) being provided on a side of the matching portion (20) facing away from the shell structure, and the second extrusion surface (20c) being capable of abutting against the curved rigid wire body (300).

7. The switching structure according to claim 6, wherein: The second extrusion surface (20c) is tilted in a direction from away from the shell structure to close to the shell structure, so that the cross-section of the part of the matching portion (20) away from the shell structure gradually increases in a direction from away from the shell structure to close to the shell structure.

8. The switching structure according to claim 7, wherein: The matching portion (20) includes a connecting lower portion (202), a limiting middle portion (203) and an extruding upper portion (204) connected in sequence, and the cross-sectional areas of the connecting lower portion (202), the limiting middle portion (203) and the extruding upper portion (204) are defined as A1, A2 and A3 in sequence, with A1>A3>A2; the connecting lower portion (202), the limiting middle portion (203) and the extruding upper portion (204) enclose the limiting groove (20a), the side of the extruding upper portion (204) facing away from the camera device is provided with the first extruding surface (20b), and the side of the extruding upper portion (204) facing the camera device is provided with the second extruding surface (20c); the bottom of the adapter ring (10) is provided with a buckling step (101), and the buckling step (101) includes a first buckling surface (102) and a second buckling surface (103) connected to the first buckling surface (102); In the assembled state, the first fastening surface (102) abuts against the end surface of the connecting lower part (202) facing away from the shell structure, the second fastening surface (103) abuts against the outer peripheral surface of the connecting lower part (202), and the curved rigid body (300) abuts against the extrusion upper part (204) facing the first extrusion surface (20b).

9. An adapter ring for connecting a mating portion (20), characterized in that: A curved rigid body (300) is provided within the inner peripheral wall of the adapter ring (10), a portion of the curved rigid body (300) protruding from the inner peripheral wall of the adapter ring, and the curved rigid body (300) is used for snap-fitting with the limiting groove (20a) of the matching portion (20).

10. A matching portion, the connecting adapter ring, characterized in that: The outer peripheral wall of the matching portion (20) is provided with a limiting groove (20a), and the limiting groove (20a) is used for snap-fitting the curved rigid wire body (300) of the matching adapter ring (10).

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