Telescopic mobile phone protection shell

Abstract

The utility model discloses a telescopic mobile phone protective shell, which comprises an upper shell and a lower shell which are made of hard materials, the upper shell and the lower shell are mutually combined to form a cavity capable of accommodating a mobile phone, the upper shell is provided with an upper connecting part, the lower shell is provided with a lower connecting part in butt joint with the upper connecting part, and the upper connecting part is provided with a lower connecting part in butt joint with the lower connecting part. The upper connecting part and the lower connecting part are connected in a sliding manner, so that reciprocating sliding along the long axis direction of the mobile phone protection shell is realized; a torsional spring is arranged between the upper connecting part and the lower connecting part; the upper shell and the lower shell slide relatively through cooperation between the upper connecting part and the lower connecting part, the upper shell and the lower shell are in a separated state or a closed state, and the upper shell and the lower shell are stably in the separated state or the closed state through elastic force of the torsional spring. The device is convenient to use and stable in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone accessories, in particular to a retractable mobile phone protective shell. Background Art

[0002] In order to protect their mobile phones, consumers usually buy mobile phone cases (or protective covers) to protect their mobile phones.

[0003] Common mobile phone protective cases are usually made of plastic materials through one-piece molding. They have a cavity that adapts to the mobile phone. The cavity and the mobile phone are tightly adapted to fix the protective case to the periphery of the mobile phone, providing the mobile phone with protection measures such as anti-scratch and anti-fall. The reason why current mobile phone protective cases are mostly made of plastic materials is because plastic materials have flexible properties. When assembling the mobile phone and the protective case, the bendable and deformable properties of plastic materials are utilized to smoothly complete the assembly. If a hard material such as metal is used as a mobile phone protective case, since hard materials such as metal cannot be bent and deformed, the protective case of this material cannot be molded in one piece, otherwise it cannot be assembled with the mobile phone. In response to this, the mobile phone protective cases currently made of hard materials such as metal all have a movable part, which is used to put the mobile phone protective case in an "open state". When the mobile phone is placed in the protective case, the movable part is used to put the mobile phone protective case in a "closed state".

[0004] See Chinese Utility Model Patent No. ZL202221251868.5, which discloses a snap-on mobile phone case. The technical solution employed is as follows: a snap-on mobile phone case comprising a rear shell and a middle frame, the rear shell and middle frame being detachably connected via snaps. The rear shell is in the form of a membrane, with a snap-on element protruding perpendicularly from its edge, which mates with a snap-on seat on the inner side of the middle frame for securement. This snap-on mobile phone case utilizes a separate rear shell and middle frame, secured by snaps.

[0005] The protective case in this technical solution consists of a back cover and a middle frame. When installing the phone, the back cover and middle frame must first be separated, the phone and middle frame assembled, and then the back cover installed. Finally, the back cover and middle frame are fixed together using a snap-fit mechanism. This complex structure requires alignment of the middle frame and back cover during installation, making it inconvenient to use.

[0006] See Chinese utility model patent number ZL202323254361.2, which discloses a retractable heat-dissipating mobile phone protective case. The technical solution adopted is as follows: it includes a first half shell, a second half shell, and a connecting assembly, wherein the first half shell is connected to the second half shell via the connecting assembly. After the first half shell and the second half shell are connected, a housing cavity for receiving the mobile phone is formed. The first half shell and the second half shell can slide horizontally toward or away from each other to adjust the size of the housing cavity. The mobile phone case in this technical solution is composed of two half shells, which are connected by a sliding connection. Although it is convenient to use, it has the following shortcomings: the first half shell and the second half shell are only connected by a protrusion and a groove, and are positioned by magnetic attraction. The bonding strength is insufficient, the first half shell and the second half shell are easy to separate, and the mobile phone protective case may fall under the action of slight external force.

[0007] Based on the above situation, the inventors propose the following technical solutions. Summary of the Invention

[0008] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a retractable mobile phone protective case with a stable structure and simple and convenient operation.

[0009] In order to solve the above technical problems, the present utility model adopts the following technical solutions: a retractable mobile phone protective case, comprising: an upper shell and a lower shell made of hard material, the upper shell and the lower shell are combined with each other to form a cavity that can accommodate a mobile phone, the upper shell has an upper connecting part, and the lower shell has a lower connecting part docked with the upper connecting part, the upper connecting part and the lower connecting part are connected by a sliding connection to achieve reciprocating sliding along the long axis direction of the protective case; a torsion spring is provided between the upper connecting part and the lower connecting part; the upper shell and the lower shell achieve relative sliding through the cooperation between the upper connecting part and the lower connecting part, so that the upper shell and the lower shell are in a separated state or a closed state, and the elastic force generated by the torsion spring can make the upper shell and the lower shell stably in a separated state or a closed state.

[0010] Furthermore, in the above technical solution, the upper connecting part is in the shape of a plate extending from the lower end of the upper shell, and a stepped portion is formed between the upper connecting part and the outer surface of the upper shell; the lower connecting part is arranged on the inner surface of the lower shell, and the upper connecting part slides along the inner surface of the lower shell into the lower connecting part.

[0011] Furthermore, in the above technical solution, the outer surface of the upper shell extends toward the upper connecting portion to form a guide protrusion; the lower shell forms a guide groove at the position corresponding to the guide protrusion, and when the upper shell and the lower shell are in a closed state, the guide protrusion and the guide groove are docked and matched.

[0012] Furthermore, in the above technical solution, a positioning slider is provided on the outer surface of the upper connecting portion, and a positioning groove corresponding to the positioning slider is provided on the inner surface of the lower shell body, and the positioning slider and the positioning groove are slidably nested.

[0013] Furthermore, in the above technical solution, the upper connecting part is provided with at least one group of positioning sliders symmetrically distributed along the center line, and the side wall of the positioning slider is formed with an upper groove; the inner side wall of the positioning slide is formed with a lower groove that cooperates with the upper groove, and the upper groove and the lower groove are nested with each other.

[0014] Furthermore, in the above technical solution, strip-shaped arc surfaces are evenly distributed on the outer surface of the upper shell.

[0015] Furthermore, in the above technical solution, the torsion spring is arranged between the upper connecting part and the lower connecting part through a group of sliding plate assemblies; the sliding plate assembly includes: a first slide plate and a second slide plate that can slide relative to each other, wherein the first slide plate is fixedly connected to the upper connecting part, and the second slide plate is fixedly connected to the lower connecting part; the torsion spring is located between the first slide plate and the second slide plate, and the two ends of the torsion spring are respectively connected to the first slide plate and the second slide plate.

[0016] Furthermore, in the above technical solution, guide grooves are formed on both sides of the first slide plate, and guide bars cooperating with the guide grooves are formed on both sides of the second slide plate.

[0017] Furthermore, in the above technical solution, the lower end of the upper connecting part extends downward to form a protruding plate, and a first positioning groove for accommodating the first skateboard is formed on the outer surface of the protruding plate, and the first skateboard is fixed in the first positioning groove by riveting or bonding; the inner surface of the lower connecting part is formed with a second positioning groove for accommodating the second skateboard, and the second skateboard is fixed in the second positioning groove by riveting or bonding.

[0018] Furthermore, in the above technical solution, two torsion springs are provided between the first slide plate and the second slide plate, and both ends of the torsion springs are connected to the first slide plate and the second slide plate respectively.

[0019] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0020] 1. This utility model is made of hard materials such as metal, which has stronger anti-fall and anti-wear performance, provides greater protection for the mobile phone and has a longer service life.

[0021] 2. The upper shell and the lower shell of the utility model are connected by a sliding connection, and the upper shell and the lower shell can be stably in a separated state or a closed state through the elastic force of the torsion spring; when the mobile phone protective case switches between the separated state and the closed state, the user only needs to apply a certain external force to break the balance formed by the torsion spring, and the mobile phone protective case can be automatically switched by the elastic force of the torsion spring, quickly and automatically switching from the current state to the other state, which is very convenient to use.

[0022] 3. In order to ensure the stability of the structure and ensure that the upper shell and the lower shell will not be separated due to external force, the utility model provides multiple sets of positioning sliders and positioning grooves between the upper connecting part and the lower connecting part. The nested connection between these positioning sliders and positioning grooves can not only realize the relative sliding of the upper shell and the lower shell, but also play the role of connecting the upper shell and the lower shell, thereby avoiding separation of the upper shell and the lower shell during use.

[0023] 4. In order to further strengthen the structure and facilitate installation, the torsion spring in the utility model is arranged in the sliding plate assembly, and the slide plate assembly is fixedly connected to the upper connecting part and the lower connecting part respectively to further strengthen the connection between the upper shell and the lower shell; at the same time, the torsion spring is arranged in the sliding plate assembly, which also facilitates subsequent assembly and improves product production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model in a closed state;

[0025] Figure 2 It is a rear view of the utility model in a closed state;

[0026] Figure 3 yes Figure 2 Middle AA section view;

[0027] Figure 4 yes Figure 2 Middle BB section view;

[0028] Figure 5 It is a three-dimensional exploded view of the utility model;

[0029] Figure 6 It is a three-dimensional exploded view of the present invention from another perspective;

[0030] Figure 7 This is a three-dimensional exploded view of the sliding plate assembly and the torsion spring in the utility model;

[0031] Figure 8 This is a three-dimensional exploded view of the sliding plate assembly and the torsion spring in the present invention from another perspective;

[0032] Figure 9 This is a schematic diagram of the working state of the sliding plate assembly and the torsion spring of the utility model;

[0033] Figure 10 It is a three-dimensional diagram of the utility model in a separated state.

[0034] Figure 11 This is a usage state diagram of another embodiment of the utility model. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0036] See Figures 1 to 6 As shown, the present invention is a retractable mobile phone protective case comprising an upper housing 10 and a lower housing 20. Both upper and lower housings 10 and 20 are made of metal, such as aluminum alloy or other hard materials. The upper and lower housings are plate-shaped, with frames formed at their edges. These edges create a cavity that can accommodate a mobile phone.

[0037] The lower ends of the upper and lower shells 10 and 20, where they meet, have a connecting portion 1 formed in the shape of a plate extending from the lower end of the upper shell 10. A stepped portion 101 is formed between the outer surfaces of the upper and lower shells 10. The lower shell 20 has a lower connecting portion 2 that interfaces with the upper connecting portion 1. The lower connecting portion 2 is disposed on the inner surface of the lower shell 20, and the upper connecting portion 1 slides along the inner surface of the lower shell 20 into the lower connecting portion 2. When the upper and lower connecting portions 1 and 2 are connected, the lower shell 20 compensates for the stepped portion 101.

[0038] The outer surface of the upper shell 10 is evenly distributed with curved strips 102. These curved surfaces 102 increase the surface area, further enhancing the phone case's protective effect and facilitating heat dissipation during phone use. The inner edge of the upper shell 10 is provided with a plurality of rubber pads 7. When the phone is assembled with the present invention, the rubber pads 7 form contact with the back of the phone, providing protection and cushioning.

[0039] The upper connecting portion 1 and the lower connecting portion 2 are connected by a sliding connection to achieve reciprocating sliding along the long axis of the protective shell. The upper shell 10 and the lower shell 20 slide relative to each other through the cooperation between the upper connecting portion 1 and the lower connecting portion 2, so that the upper shell 10 and the lower shell 20 are in a separated state or a closed state.

[0040] Specifically, the sliding connection between the upper connecting part 1 and the lower connecting part 2 adopts the following structure: a positioning slider is provided on the outer surface of the upper connecting part 1, and a positioning groove corresponding to the positioning slider is provided on the inner surface of the lower shell 20, and the positioning slider and the positioning groove can be slidably nested.

[0041] In this embodiment, two groups of four positioning sliders 31 and 32 are provided on the upper connecting portion 1. Each group of positioning sliders is symmetrically distributed along the center line of the long axis direction of the upper shell 10. Similarly, two groups of four positioning slots 32 and 42 are provided on the inner surface of the lower connecting portion 2. Specifically, Figure 3 As shown, the first set of two positioning sliders 31 are located near the outer side of the upper connecting portion 1, and upper grooves 311 are formed on the left and right side walls of the positioning sliders 31. Correspondingly, positioning grooves 32 that cooperate with the positioning sliders 31 are formed on the surface of the lower connecting portion 2, and lower grooves 321 that cooperate with the upper grooves 311 are formed on the left and right inner side walls of the positioning grooves 32. The upper grooves 311 and the lower grooves 321 are nested and cooperate with each other.

[0042] Combine Figure 4 As shown, the second set of two positioning sliders 41 are located near the middle of the upper connecting portion 1, and an upper groove 411 is formed on the outer wall of the positioning slider 32. Correspondingly, a positioning groove 42 is formed on the surface of the lower connecting portion 2 to cooperate with the positioning slider 41, and a lower groove 421 is formed on the inner wall of the positioning groove 42 to cooperate with the upper groove 411. The upper groove 411 and the lower groove 421 are nested and cooperate with each other.

[0043] The nested fit of the two sets of positioning sliders 31, 32 and the positioning slots 41, 42 allows for relative sliding movement between the upper connecting portion 1 and the lower connecting portion 2. The travel length of the positioning slots limits the sliding movement, preventing the two from completely separating. Furthermore, the nested fit also ensures that the upper connecting portion 1 and the lower connecting portion 2 are connected to each other, preventing separation.

[0044] In order to further strengthen the guidance, the outer surface of the upper shell 10 extends toward the upper connecting part 1 to form a guide protrusion 11; the lower shell 20 forms a guide groove 21 corresponding to the position of the guide protrusion 11, and the guide protrusion 11 and the guide groove 21 have a guiding and alignment function. When the upper shell 10 and the lower shell 20 are in a closed state, the guide protrusion 11 and the guide groove 21 are docked and matched to ensure that the upper shell 10 and the lower shell 20 are accurately aligned.

[0045] A torsion spring 5 is provided between the upper connecting portion 1 and the lower connecting portion 2. The torsion spring 5 is provided because when the upper shell 10 and the lower shell 20 slide relative to each other through the cooperation between the upper connecting portion 1 and the lower connecting portion 2, this sliding connection needs to be stabilized by the torsion spring 5 so that the upper shell 10 and the lower shell 20 can be stably separated or closed.

[0046] The torsion spring 5 in the present invention can be directly arranged between the upper connecting portion 1 and the lower connecting portion 2 , and the two ends of the torsion spring 5 can be fixed to the upper connecting portion 1 and the lower connecting portion 2 respectively.

[0047] Combine Figure 7 、 Figure 8 As shown, a preferred embodiment of the present invention is to dispose a torsion spring 5 in a set of sliding plate assemblies 6, wherein the torsion spring 5 is disposed between the upper connecting portion 1 and the lower connecting portion 2 via the sliding plate assembly 6. Specifically, the sliding plate assembly 6 includes a first slide plate 61 and a second slide plate 62 that can slide relative to each other, wherein the first slide plate 61 is fixedly connected to the upper connecting portion 1, and the second slide plate 62 is fixedly connected to the lower connecting portion 2. The first slide plate 61 is formed with guide grooves 611 on both sides, and the second slide plate 62 is formed with guide bars 621 that cooperate with the guide grooves 611 on both sides. The relative sliding between the first slide plate 611 and the second slide plate 612 is achieved by the nested cooperation between the guide grooves 611 and the guide bars 612. The torsion spring 5 is located between the first slide plate 61 and the second slide plate 62, and the two ends of the torsion spring 5 are respectively connected to the first slide plate 61 and the second slide plate 62.

[0048] In addition, in order to facilitate the installation of the sliding plate assembly 6 and minimize the increase in the thickness of the sliding plate assembly 6, the lower end of the upper connecting part 1 extends downward to form a protruding plate 12, and a first positioning groove 120 for accommodating the first slide plate 61 is formed on the outer surface of the protruding plate 12, and the first slide plate 61 is fixed in the first positioning groove 120 by riveting or bonding; the inner surface of the lower connecting part 2 is formed with a second positioning groove 22 for accommodating the second slide plate 62, and the second slide plate 62 is fixed in the second positioning groove 22 by riveting or bonding.

[0049] In this embodiment, two torsion springs 5 are provided between the first slide plate 61 and the second slide plate 62. The two torsion springs are provided in a centrally symmetrical manner, and the two ends of the torsion spring 5 are connected to the first slide plate 61 and the second slide plate 62 respectively. Figure 9 As shown, when the first slide 61 and the second slide 62 slide relative to each other, when the first slide 61 is in the lower position, the upper shell 10 and the lower shell 20 are in a closed state; when the first slide 61 is in the upper position, the upper shell 10 and the lower shell 20 are in a separated state. The elastic force of the two torsion springs 5 not only allows the first slide 61 and the second slide 62 to quickly and automatically move between the separated and closed states, but also ensures that they remain stable in these two states until they are broken by external force (such as a push from the user).

[0050] See Figure 10As shown, when the upper housing 10 and the lower housing 20 slide relative to each other through the cooperation between the upper connecting portion 1 and the lower connecting portion 2, the upper housing 10 and the lower housing 20 are separated, and a distance L is generated between the upper housing 10 and the lower housing 20. This expands the cavity of the mobile phone protective case, allowing the mobile phone to be quickly installed in the protective case. Then, by applying external force, the upper housing 10 and the lower housing 20 are closed, completing the assembly of the mobile phone.

[0051] Since the utility model is usually made of metal materials such as aluminum alloy, it has a certain electromagnetic shielding effect, which will bring inconvenience to the use of many mobile phones with wireless charging. Therefore, for mobile phones with wireless charging, the utility model makes the following improvements. Figure 11 As shown, in this embodiment, a through hole 100 is formed in the upper housing 110. After being assembled with this embodiment, a mobile phone 9 with wireless charging can be wirelessly charged through the through hole 100, thereby avoiding the electromagnetic shielding formed by the upper housing 10. Of course, a ring-shaped mobile phone holder 8 can also be provided at the location of the through hole 100, so that the user can use the mobile phone holder 8 to place the mobile phone at an angle on the desktop.

[0052] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A retractable mobile phone protective case, comprising: An upper shell (10) and a lower shell (20) made of hard material are combined to form a cavity capable of accommodating a mobile phone, and the characteristics are: The upper shell (10) has an upper connecting portion (1), and the lower shell (20) has a lower connecting portion (2) docked with the upper connecting portion (1). The upper connecting portion (1) and the lower connecting portion (2) are connected by a sliding connection to achieve reciprocating sliding along the long axis direction of the mobile phone protective shell. A torsion spring (5) is provided between the upper connecting portion (1) and the lower connecting portion (2); The upper shell (10) and the lower shell (20) achieve relative sliding through the cooperation between the upper connecting portion (1) and the lower connecting portion (2), so that the upper shell (10) and the lower shell (20) are in a separated state or a closed state, and the elastic force generated by the torsion spring (5) makes the upper shell (10) and the lower shell (20) stably in the separated state or the closed state.

2. The retractable mobile phone protective case according to claim 1, characterized in that: The upper connecting portion (1) is in the shape of a plate extending from the lower end of the upper shell (10), and a stepped portion (101) is formed between the upper connecting portion (1) and the outer surface of the upper shell (10); the lower connecting portion (2) is arranged on the inner surface of the lower shell (20), and the upper connecting portion (1) slides along the inner surface of the lower shell (20) and enters the lower connecting portion (2).

3. The retractable mobile phone protective case according to claim 2, characterized in that: The outer surface of the upper shell (10) extends in the direction of the upper connecting portion (1) to form a guide protrusion (11); the lower shell (20) forms a guide groove (21) at a position corresponding to the guide protrusion (11); when the upper shell (10) and the lower shell (20) are in a closed state, the guide protrusion (11) and the guide groove (21) are docked and matched.

4. The retractable mobile phone protective case according to claim 2, characterized in that: A positioning slider is provided on the outer surface of the upper connecting portion (1), and a positioning slot corresponding to the positioning slider is provided on the inner surface of the lower shell (20), and the positioning slider and the positioning slot are slidably nested.

5. The retractable mobile phone protective case according to claim 4, characterized in that: The upper connecting portion (1) is provided with at least one group of positioning slide blocks symmetrically distributed along the center line, and the side walls of the positioning slide blocks are formed with upper grooves; the inner side walls of the positioning slide grooves are formed with lower grooves that cooperate with the upper grooves, and the upper grooves and the lower grooves are nested with each other.

6. The retractable mobile phone protective case according to claim 1, characterized in that: The outer surface of the upper shell (10) is evenly distributed with strip-shaped arc surfaces (102).

7. A retractable mobile phone protective case according to any one of claims 1 to 6, characterized in that: The torsion spring (5) is arranged between the upper connecting portion (1) and the lower connecting portion (2) via a sliding plate assembly (6); The sliding plate assembly (6) comprises: a first slide plate (61) and a second slide plate (62) which can slide relative to each other, wherein the first slide plate (61) is fixedly connected to the upper connecting portion (1), and the second slide plate (62) is fixedly connected to the lower connecting portion (2); The torsion spring (5) is located between the first slide plate (61) and the second slide plate (62), and two ends of the torsion spring (5) are respectively connected to the first slide plate (61) and the second slide plate (62).

8. The retractable mobile phone protective case according to claim 7, characterized in that: Guide grooves (611) are formed on both sides of the first slide plate (61), and guide bars (621) that cooperate with the guide grooves (611) are formed on both sides of the second slide plate (62).

9. The retractable mobile phone protective case according to claim 7, characterized in that: The lower end of the upper connecting portion (1) extends downward to form a protruding plate (12), and a first positioning groove (120) for accommodating the first slide plate (61) is formed on the outer surface of the protruding plate (12), and the first slide plate (61) is fixed in the first positioning groove (120) by riveting or bonding; the inner surface of the lower connecting portion (2) is formed with a second positioning groove (22) for accommodating the second slide plate (62), and the second slide plate (62) is fixed in the second positioning groove (22) by riveting or bonding.

10. The retractable mobile phone protective case according to claim 7, characterized in that: Two torsion springs (5) are provided between the first slide plate (61) and the second slide plate (62).

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