WO2022110628A1

WO2022110628A1 - Connecting device and mobile phone protective cover

Info

Publication number: WO2022110628A1
Application number: PCT/CN2021/089239
Authority: WO
Inventors: 雷灿锋; 许庆庆; 袁思远
Original assignee: 深圳罗马仕科技有限公司
Priority date: 2020-11-25
Filing date: 2021-04-23
Publication date: 2022-06-02
Also published as: CN214315341U

Abstract

The present utility model relates to a connecting device and a mobile phone protective cover. The connecting device comprises: a first base, which is used for being connected to a first target part; a second base, which is used for being connected to a second target part; a first rotary connection structure, which is arranged on the first base; and a second rotary connection structure, which is arranged on the second base and matches the first rotary connection structure so as to screw the first base and the second base in a first direction. In the present application, the first base and the second base are rotatably connected by means of the first rotary connection structure and the second rotary connection structure, and the first base is used for mounting the first target part and the second base is used for mounting the second target part, such that the first target part and the second target part are stably connected to each other. In the device, the first base and the second base can be stably connected merely by means of rotating the second base relative to the first base in the first direction, and thus, the device is convenient to operate and has high stability.

Description

Connecting Units and Phone Covers

technical field

The utility model relates to the technical field of mechanical structures, in particular to a connecting device and a mobile phone protective cover.

Background technique

Wireless earphones are favored by people because they are easy to operate and carry because they are not bound by wires. When the wireless earphone is not in use, it is generally stored in a special storage box to facilitate the storage and charging of the wireless earphone. However, due to the small size of the wireless earphone storage box, there is a risk of being easily lost, and people cannot obtain it quickly during carrying.

At present, the storage box is mainly adsorbed to the mobile terminal through the magnetic suction structure, so as to facilitate the quick acquisition of wireless earphones, but the connection stability of the magnetic suction structure is poor, and it is easy to lose the storage box and the wireless earphone together when carrying it. situation, resulting in economic losses.

Utility model content

Based on this, it is necessary to provide a connection device and a mobile phone protective cover that can improve the connection stability of the earphone storage box and the mobile phone case in response to the above problems.

A connection device, comprising:

a first base, the first base is used to install the first target component;

a second base, the second base is used to install the second target component;

a first screwing structure, the first screwing structure is disposed on the first base;

A second screwing structure, the second screwing structure is disposed on the second base, the second screwing structure cooperates with the first screwing structure, and the first base and the first base are screwed in a first direction. the second base.

Preferably, in one of the embodiments, the first screwing structure is formed with a slot facing the second screwing structure, the second screwing structure includes a blade facing the slot, and the second screwing structure includes a blade facing the slot. In a tight state, the insert is snapped into the slot.

Preferably, in one of the embodiments, the first screwing structure includes a first screwing plate and a second screwing plate, the first screwing plate is arranged above the insert, the second screwing plate The screwing plate is arranged between the first screwing plate and the first base, and the first screwing plate, the second screwing plate and the first base form the slot.

Preferably, in one of the embodiments, the first screwing structure further includes a third screwing plate, the third screwing plate is disposed on the first base and is along the edge of the second screwing plate Arranged side by side along the rotation track of the inserts, the third rotating plate and the first base form an accommodating groove, and the accommodating groove cooperates with the inserts to determine the rotation of the inserts. the initial position before entering the slot.

Preferably, in one of the embodiments, the connecting device further includes an elastic protrusion, the elastic protrusion is provided between the first base and the second base, and in the screwed state, the elastic protrusion The protrusion abuts the first screw connection structure to the second screw connection structure through the first base and the second base.

Preferably, in one of the embodiments, the connecting device further includes a backing plate, and the backing plate is provided between the elastic protrusion and the second base.

Preferably, in one of the embodiments, the first base includes a first support plate and a second support plate that are detachably connected; the second support plate is formed with an installation groove for installing the backing plate, the The second support plate covers the installation groove.

Preferably, in one of the embodiments, the connecting device further includes a limiting member, and the limiting member is disposed between the first screwing structure and the second screwing structure, and is used to increase the screw connection The rotational damping force between the first screw connection structure and the second screw connection structure in the tight state.

Preferably, in one of the embodiments, the limiting member includes:

a limit hole, the limit hole is arranged on the first base;

The limiting protrusion is arranged on the second base, and in the tightening state, the limiting protrusion is pushed into the limiting hole.

Preferably, in one of the embodiments, a limit groove is formed on the second base, an elastic plate is arranged in the limit groove, and the limit protrusion is arranged on the elastic plate. During the rotation process, The elastic plate drives the limiting protrusion to push into or slide out of the limiting hole.

Preferably, in one of the embodiments, the limiting hole is a tapered hole.

Preferably, in one of the embodiments, the limiting hole includes:

the conical part, in the screw-in state, the conical part is located on the side close to the limiting protrusion, and is used for guiding the limiting protrusion to push in and slide out;

The limiting portion, in the screwed-in state, is arranged on a side away from the limiting protrusion, and is used to limit the limit position of the limiting protrusion.

A mobile phone protective cover, comprising any one of the above-mentioned connecting device, a mobile phone case and an earphone case, wherein the first base is provided on the mobile phone case, and the second base is provided on the earphone case.

Preferably, in one of the embodiments, the first base is attached to the mobile phone case, and the second base is attached to the earphone case.

Preferably, in one of the embodiments, a camera hole is provided on the mobile phone case, and the earphone case is juxtaposed on one side of the camera hole.

In the above-mentioned connecting device, the first base and the second base are screwed together by the first screw connection structure and the second screw connection structure. At the same time, because the first base is used to install the first target component, the second base is used to install the second target component. , so as to realize the stable and detachable connection of the first target component and the second target component. The above device only needs to rotate the second base relative to the first base in the first direction to achieve stable connection between the first base and the second base, which is easy to operate and has high stability.

In the above-mentioned mobile phone protective cover, the mobile phone case and the earphone case are screwed together by the connecting device, so that the detachable connection between the mobile phone case and the earphone case is realized, and the connection strength between the mobile phone case and the earphone case is ensured at the same time. The above-mentioned mobile phone protective cover is simple in structure and convenient in operation.

Various specific structures of the present application and their functions and effects will be described in further detail below with reference to the accompanying drawings.

Description of drawings

1 is a perspective view of a connecting device in one embodiment of the application;

2 is a perspective view of a first base and a first screw structure in one of the embodiments of the present application;

FIG. 3 is a perspective view of the second base and the second screw structure in one embodiment of the present application from a first perspective;

FIG. 4 is a perspective view of the second base and the second screw structure in one embodiment of the present application from a second perspective;

5 is a top view of the connecting device in one of the embodiments of the application;

6 is a bottom view of the connecting device in one of the embodiments of the application;

FIG. 7 is a cross-sectional view along the section A-A in FIG. 5 in one of the embodiments of the application;

FIG. 8 is a cross-sectional view along the B-B section in FIG. 5 in one of the embodiments of the application;

FIG. 9 is a cross-sectional view along the C-C section in FIG. 5 in one of the embodiments of the application;

Fig. 10 is the enlarged view of D area in Fig. 6;

FIG. 11 is a cross-sectional view of the first base and the first screw connection structure along the section A-A in FIG. 5 in one of the embodiments of the present application;

FIG. 12 is a cross-sectional view of the first base and the first screw connection structure along the section B-B in FIG. 5 in one of the embodiments of the present application;

13 is an exploded top view of the first base and the first screw structure in another embodiment of the application;

14 is an exploded bottom view of the first base and the first screw structure in another embodiment of the application;

15 is a bottom exploded view of the second base and the second screw structure in another embodiment of the application;

16 is a top view of a connecting device in another embodiment of the application;

FIG. 17 is a cross-sectional view of the connecting device along the section E-E in FIG. 16 according to another embodiment of the present application;

18 is a front view of a mobile phone protective cover in one embodiment of the application;

FIG. 19 is a top view of a mobile phone protective cover in one embodiment of the present application.

Wherein, in the reference numbers, 10-connecting device; 100-first base; 110-processing groove; 120-first support plate; 130-second support plate; 200-second base; 210-limiting groove; 220 -Elastic plate; 300-first screw connection structure; 310-first screw connection plate; 320-second screw connection plate; 330-third screw connection plate; 340-slot; 350-accommodating slot; Two screw connection structure; 410-insert plate; 500-limiting part; 510-limiting hole; 511-inner surface; 520-limiting protrusion; 521-outer surface; 600-elastic protrusion; 700-installation hole; 710-first installation hole; 720-second installation hole; 800-backing plate; 810-positioning part; 900-installation slot; 20-first target part; 30-second target part; 40-mobile phone case; 50- Headphone shell; 60-camera hole.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not subject to the specific embodiments disclosed below. limit.

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", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connected, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction relationship between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

In one of the application scenarios, the connecting device 10 is used for screwing the first target part 20 and the second target part 30 . It can be understood that screwing refers to connecting the first target component 20 and the second target component 30 by means of rotation. The rotation direction of the base 100 is defined as the first direction, and the rotation direction opposite to the first direction is defined as the second direction. For example, the first target component 20 is a mobile device protective case, and the second target component 30 is an accessory storage box. Specifically, the first target component 20 is a mobile phone case, and the second target component 30 is an earphone storage box.

In one embodiment, referring to FIGS. 1 to 6 , a connecting device 10 includes a first base 100 , a second base 200 , a first screw structure 300 and a second screw structure 400 . The first base 100 is used to install the first target component 20 , the second base 200 is used to install the second target component 30 , the first screw structure 300 is arranged on the first base 100 , and the second screw structure 400 is arranged on the first base 100 . Two bases 200 , the first base 100 and the second base 200 are screwed in the first direction, so as to realize the screw connection of the first target part 20 and the second target part 30 . It can be understood that, in order to increase the applicable range of the connecting device 10, the first base 100 and the second base 200 are smaller in size, about the size of a button.

In order to make the connecting device 10 meet different requirements and expand the applicable scope of the connecting device 10, in one specific embodiment, during the tightening process of the connecting device 10, the second base 200 is first relative to the first base 100. When the direction rotates, the second base 200 rotates in place when receiving the resistance of rotation, completes the tightening of the connecting device 10 , and realizes the screw connection of the first target part 20 and the second target part 30 . During the loosening process of the connecting device 10, the second base 200 may continue to rotate in the first direction relative to the first base 100 until the cooperation between the first screw structure 300 and the second screw structure 400 is released, or it may be: The second base 200 rotates in the second direction relative to the first base 100 until the cooperation between the first screw structure 300 and the second screw structure 400 is released.

In the above-mentioned connecting device, the first base and the second base are screwed together by the first screw connection structure and the second screw connection structure. At the same time, because the first base is used to install the first target component, the second base is used to install the second target component. , so as to realize the stable and detachable connection of the first target component and the second target component. The above device only needs to rotate the second base relative to the first base in the first direction to achieve stable connection between the first base and the second base, which is easy to operate, has high stability, and is easy to disassemble.

In one of the specific embodiments, referring to FIG. 5 , FIG. 7 and FIG. 11 , the first screwing structure 300 is formed with a slot 340 facing the second screwing structure 400 , and the second screwing structure 400 includes a slot 340 facing the slot 340 . The insert 410 is clamped in the slot 340 in a screwed state. The first screw connection structure and the second screw connection structure in the above-mentioned connecting device have simple structure, simple operation, and stable cooperation.

In another embodiment, the second screwing structure 400 is formed with a slot (not shown) facing the first screwing structure 300 , and the first screwing structure 300 includes a blade (not shown) facing the slot.

In one embodiment, referring to FIG. 7 and FIG. 11 , the first screwing structure 300 includes a first screwing plate 310 and a second screwing plate 320 . Wherein, the first swivel plate 310 is arranged above the insert 410, the second swivel plate 320 is arranged between the first swivel plate 310 and the first base 100, the first swivel plate 310, the second swivel plate 320 320 and the first base 100 form a slot 340 .

In order to achieve precise rotation of the second screw connection structure 400 relative to the first screw connection structure 300 and stable locking in the screwed state, in one of the preferred embodiments, referring to FIG. 7 and FIG. 9 , when the insert 410 When clamped in the slot 340 , the end surface of the insert 410 abuts against the surface of the second swivel plate 320 , and the upper surface of the insert 410 abuts against the lower surface of the first swivel plate 310 .

In order to reduce the processing difficulty of the slot 340, in one of the preferred embodiments, the first base 100 is provided with a processing groove 110, wherein the position of the processing groove 110 is opposite to the position of the processing groove 110, so as to be processed through the processing groove 110 The slot 340 optimizes the processing technology of the connecting device 10 and reduces the processing cost of the connecting device 10 .

The first screw connection structure in the above connection device includes a first screw connection plate and a second screw connection plate, and the first screw connection plate, the second screw connection plate and the first base form a slot. On the one hand, the slot structure is simple , the processing difficulty is low. On the other hand, the first and second rotating plates can restrict the position of the insert from the end and the surface of the insert, and improve the stability of the insert and the slot.

In one specific embodiment, referring to FIG. 8 and FIG. 12 , the first screw connection structure 300 further includes a third screw connection plate 330 . in. The third swivel plate 330 is disposed on the first base 100 and is arranged in parallel with the second swivel plate 320 along the rotation track of the insert 410 . The third screwing plate 330 and the first base 100 form an accommodating groove 350 , and the accommodating groove 350 cooperates with the insert 410 to determine the initial position before the insert 410 is screwed into the slot 340 . Specifically, before the insertion piece 410 is screwed into the slot 340 , the bottom surface of the insertion piece 410 abuts against the upper surface of the first base 100 , and the end surface of the insertion piece 410 abuts against the side surface of the third rotating plate 330 .

The first screw connection structure in the above connection device is provided with a third screw connection plate to form an accommodating groove together with the first base. At the beginning of the screw connection, the second base is placed on the first base through the cooperation of the insert and the accommodating groove, so as to realize the rapid positioning of the first base and the second base, and reduce the installation difficulty of the connecting device.

In one of the embodiments, referring to FIGS. 13 , 14 , 16 and 17 , the connecting device 10 further includes an elastic protrusion 600 . The elastic protrusion 600 is disposed between the first base 100 and the second base 200 . In the screwed state, the elastic protrusion 600 abuts the first screwing structure 300 to the first base 100 and the second base 200 through the first base 100 and the second base 200 . In the second screw structure 400 , the elastic protrusions 600 may be disposed on the first base 100 or the second base 200 . Specifically, when the elastic protrusion 600 is disposed on the first base 100 , in the process of unscrewing the second screwing structure 400 from the first screwing structure 300 , it is necessary to pass the second base 200 to the first base 100 applies a driving force to compress the elastic protrusion 600, release the contact between the first screw structure 300 and the second screw structure 400, and then screw the second screw structure 400 from the first screw structure 300. out.

The above-mentioned connecting device, by arranging elastic protrusions between the first base and the second base, can realize the fixation of the first tightening structure and the second tightening structure in the tightened state and the triggering in the unscrewed state, so as to avoid screwing. The false triggering of the out state improves the stability of the connection device, the overall structure is simple, the operation is convenient, and the use process is stable.

In order to improve the aesthetics of the connecting device 10 , in one embodiment, referring to FIGS. 15 and 17 , the connecting device 10 further includes a backing plate 800 . The backing plate 800 is disposed between the elastic protrusion 600 and the second base 200 . In the above connection device, by arranging a backing plate between the elastic protrusion and the second base, the elastic protrusion is shielded from the outside, and the aesthetic performance of the connection device is improved.

In one embodiment, referring to FIGS. 14 and 15 , the first base 100 includes a first support plate 120 and a second support plate 130 that are detachably connected. The backing plate 800 is provided with a positioning portion 810 , the second support plate 130 is formed with an installation groove 900 for installing the backing plate 800 , and the mounting groove 900 is matched with the positioning portion 810 to install the backing plate 800 on the first base 100 , the second support plate 130 covers the mounting groove 900 . By setting the first base as a detachable structure of the first support and the second support plate, the above-mentioned connecting device reduces the difficulty of processing and installation of the backing plate.

In one embodiment, referring to FIG. 14 , a mounting hole 700 is provided between the first base 100 and the second base 200 , wherein the mounting hole 700 includes a first mounting hole 710 provided on the second base 200 and a first mounting hole 710 provided on the second base 200 . A second mounting hole 720 on the base 100 , wherein the first mounting hole 710 and the second mounting hole 720 are butted and matched with the connector to connect the first base 100 and the second base 200 .

In one of the embodiments, referring to FIGS. 8 and 9 , the connecting device 10 further includes a limiting member 500 . The limiting member 500 is disposed between the first screwing structure 300 and the second screwing structure 400 . The limiting member 500 is used to increase the rotational damping force between the first screw connection structure 300 and the second screw connection structure 400 in a screwed state. Specifically, the rotational damping force can be any value, for example, a preset value or infinite. Wherein, when the rotational damping force is a preset value, a driving force greater than the preset value is applied to the second base 200 to overcome the rotational damping force, so as to rotate the insert 410 out of the slot 340, wherein the direction of the driving force can be It can be the first direction or the second direction. Wherein, when the rotational damping force is infinite, the insert 410 is rotated out of the slot 340 by applying a driving force in the second direction to the second base 200 .

The above connecting device is also provided with a limiting member. When the second screwing structure rotates to the tightening position relative to the first screwing structure, the rotation damping force between the first screwing structure and the second screwing structure is increased by the limiting member. , and further prompts the user that the first screw connection structure and the second screw connection decoupling strand in the connecting device have been rotated in place, and at the same time, the rotation of the second screw connection structure relative to the first screw connection structure is prevented by the increased rotational damping force, so as to ensure In the screwed state, the first screw connection structure and the second screw connection structure are relatively static.

In one of the preferred embodiments, referring to FIGS. 8 and 9 , the limiting member 500 includes a limiting hole 510 and a limiting protrusion 520 . The limiting hole 510 is provided on the first base 100 , and the limiting protrusion 520 is provided on the second base 200 . In the screwed state, that is, when the second screwing structure 400 rotates relative to the first screwing structure 300 When reaching the tightening position, the limiting protrusion 520 pushes into the limiting hole 510 .

The limiting component in the above-mentioned connecting device includes a limiting hole and a limiting protrusion, and has a simple structure, convenient operation, and high matching stability.

In one of the preferred embodiments, referring to FIGS. 8 and 9 , a limiting groove 210 is defined on the second base 200 , the limiting groove 210 is provided with an elastic plate 220 , and the limiting protrusion 520 is disposed on the elastic plate 220 . During the rotation process, the elastic plate 220 drives the limiting protrusion 520 to push into or slide out of the limiting hole 510 .

In order to optimize the structure and reduce the resistance between the elastic plate 220 and the first base 100 , in one preferred embodiment, the extending direction of the elastic plate 220 from the second base in the limiting groove 210 is the first direction.

In the above-mentioned connecting device, by arranging the limiting protrusions on the elastic plate, the limiting protrusions are automatically pushed into the limiting holes during the rotation process, and the limiting protrusions automatically slide out from the limiting holes during the rotating process. The structure of the device is simple, the limit precision is high, no additional operation is required, and the overall operation is convenient.

In one embodiment, the limiting hole 510 is a tapered hole. Referring to FIG. 10 , specifically, the inner surface 511 of the limiting hole 510 cooperates with the outer surface 521 of the limiting protrusion 520 to realize the pushing-in and sliding-out of the limiting protrusion 520 .

In order to optimize the structure of the limiting member 500 and improve the limiting effect, in one of the preferred embodiments, in the tightened state, the outer peripheral surface of the limiting protrusion 520 abuts against the inner surface of the tapered hole.

The above-mentioned connecting device designs the limiting hole as a conical hole, and the pushing-in and sliding-out process of the limiting protrusion is stable, which increases the loosening method of the first screwing structure and the second screwing structure, and enlarges the above-mentioned connecting device. scope of application.

In another embodiment, the limiting hole 510 includes a tapered portion and a limiting portion. In the screwed-in state, the conical portion is located on the side close to the limiting protrusion 520 , and the limiting portion 512 is provided on the side away from the limiting protrusion 520 . The conical portion is used to guide the limiting protrusion 520 to push in and slide out, and the limiting portion is used to limit the limit position of the limiting protrusion 520 , that is, the second screwing structure 400 can rotate relative to the first screwing structure 300 limit position.

The above-mentioned connecting device limits the limit position that the limit protrusion can reach through the limit part, and then limits the limit position that the second screw connection structure can rotate relative to the first screw connection structure, so as to prevent the screwing failure caused by excessive force during the screwing process Therefore, the above structure can improve the connection stability of the first screw connection structure and the second screw connection structure.

In one of the embodiments, referring to FIGS. 18 and 19 , a mobile phone protective cover includes any one of the above-mentioned connection device 10 , a mobile phone case 40 and an earphone case 50 , and the connection device 10 is placed between the mobile phone case 40 and the earphone case 50 . between. The first base 100 in the connection device 10 is disposed on the mobile phone case 40 , and the second base 200 in the connection device 10 is disposed in the earphone case 50 .

In order to reduce the structural requirements of the connection device 10 on the mobile phone case 40 and the earphone case 50, and further expand the applicable scope of the connection device 10, in one preferred embodiment, the first base 100 is attached to the mobile phone case 40, and the second base 200 affixed to the earphone case 50 . The connection method between the first base and the mobile phone case in the above-mentioned mobile phone protective cover, and the connection method between the second base and the earphone case do not have high requirements on the structure of the mobile phone case and the earphone case, and the installation difficulty is relatively low.

In order to improve the stability of the connection between the connection device 10 and the mobile phone case 40 and the earphone case 50 , in another embodiment, the first base 100 is embedded in the mobile phone case 40 , and the second base 200 is embedded in the earphone case 50 .

In one embodiment, referring to FIG. 19 , a camera hole 60 is provided on the mobile phone case 40 in the above-mentioned mobile phone protective cover, and the earphone case 50 is arranged on one side of the camera hole 60 in parallel. In the above-mentioned mobile phone protective cover, the earphone shell is placed on one side of the camera hole on the mobile phone shell, which is ergonomic and has a beautiful appearance.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims

A connection device, characterized in that, comprising:

a first base, the first base is used to install the first target component;

a second base, the second base is used to install the second target component;

a first screwing structure, the first screwing structure is disposed on the first base;

A second screwing structure, the second screwing structure is disposed on the second base, the second screwing structure cooperates with the first screwing structure, and the first base and the first base are screwed in a first direction. the second base.
The connection device according to claim 1, wherein the first screwing structure is formed with a slot facing the second screwing structure, and the second screwing structure includes a socket facing the slot. In the screwed state, the insert is snapped into the slot.
The connection device according to claim 2, wherein the first screw connection structure comprises a first screw connection plate and a second screw connection plate, and the first screw connection plate is arranged above the insert piece, The second rotating plate is arranged between the first rotating plate and the first base, and the first rotating plate, the second rotating plate and the first base form the slot.
The connection device according to claim 3, wherein the first screw connection structure further comprises a third screw connection plate, and the third screw connection plate is arranged on the first base and is connected with the second screw connection plate. The swivel plates are arranged side by side along the rotation track of the inserts, the third swivel plate and the first base form an accommodating groove, and the accommodating groove cooperates with the inserts to determine the the initial position before the insert is screwed into the slot.
The connecting device according to claim 2, wherein the connecting device further comprises an elastic protrusion, and the elastic protrusion is provided between the first base and the second base, and in the screwed state , the elastic protrusion abuts the first screw connection structure to the second screw connection structure through the first base and the second base.
The connecting device according to claim 5, characterized in that, the connecting device further comprises a backing plate, and the backing plate is arranged between the elastic protrusion and the second base.
The connecting device according to claim 6, wherein the first base comprises a first support plate and a second support plate that are detachably connected; the second support plate is formed with a mounting plate for mounting the backing plate groove, the second support plate covers the installation groove.
The connecting device according to claim 1, characterized in that, the connecting device further comprises a limiting member, and the limiting member is disposed between the first screwing structure and the second screwing structure, using The rotational damping force between the first screw connection structure and the second screw connection structure is increased in the tightened state.
The connecting device according to claim 8, wherein the limiting member comprises:

a limit hole, the limit hole is arranged on the first base;

The limiting protrusion is arranged on the second base, and in the tightening state, the limiting protrusion is pushed into the limiting hole.
The connecting device according to claim 9, wherein a limit groove is defined on the second base, an elastic plate is arranged in the limit groove, and the limit protrusion is arranged on the elastic plate, During the rotation, the elastic plate drives the limiting protrusion to push into or slide out of the limiting hole.
The connecting device according to claim 9, wherein the limiting hole is a tapered hole.
The connecting device according to claim 9, wherein the limiting hole comprises:

the conical part, in the screw-in state, the conical part is located on the side close to the limiting protrusion, and is used for guiding the limiting protrusion to push in and slide out;

The limiting portion, in the screwed-in state, is arranged on a side away from the limiting protrusion, and is used to limit the limit position of the limiting protrusion.
A mobile phone protective cover, characterized in that it comprises the connecting device, mobile phone case and earphone case according to any one of claims 1-12, wherein the first base is arranged on the mobile phone case, and the second base is provided on the mobile phone case. The base is arranged on the earphone shell.
The mobile phone protective cover according to claim 13, wherein the first base is adhered to the mobile phone case, and the second base is adhered to the earphone case.
The mobile phone protective cover according to claim 13, wherein a camera hole is provided on the mobile phone case, and the earphone case is arranged side by side on one side of the camera hole.