A mobile phone case

Abstract

The utility model discloses a kind of mobile phone cases, including main body shell and hand belt, main body shell includes frame and backplate, backplate is set to one end of frame, frame is equipped with first connecting part, backplate is equipped with second connecting part and third connecting part, second connecting part is detachably connected with first connecting part;Hand belt is set to the side of backplate away from frame, hand belt is equipped with fourth connecting part, fourth connecting part is detachably connected with third connecting part, hand belt is used to form restraint interval with backplate when fourth connecting part and third connecting part are connected, the width of restraint interval is adjustable.The utility model is detachably connected with frame and backplate to assemble, hand belt and backplate are detachably assembled, and single damaged component is conveniently replaced as needed;While it is convenient to adjust restraint interval, improve user's comfort.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessories technology, and in particular to a mobile phone case. Background Technology

[0002] There are many types of phone cases on the market today. Some phone cases come with a wrist strap to make it easier for users to hold the phone and reduce the risk of accidental drops, especially suitable for users of large-screen phones or for use in scenarios such as sports or commuting. However, most existing phone cases with wrist straps adopt a one-piece molding or fixed connection method in terms of structural design, meaning that the main body of the case and the wrist strap, as well as the frame and back panel of the main body of the case, are difficult to separate.

[0003] In related technologies, phone cases with wrist straps mainly suffer from two key problems. Firstly, the connection method between the frame and back panel of the main body shell is flawed. Most products use a fixed connection or a connection structure that is difficult to disassemble easily. When one part of the frame or back panel is damaged, the user needs to replace the entire main body shell, which not only increases usage costs but also wastes resources. Secondly, the connection and functionality of the wrist strap to the main body shell are insufficient. Traditional wrist straps are either fixedly connected to the main body shell and cannot be disassembled or replaced according to user needs, limiting the user's flexibility when the wrist strap is not needed, or although they are detachable, the connection structure is complex and inconvenient to operate. Furthermore, the binding gap width formed by the wrist strap and back panel is usually fixed and cannot adapt to different users' hand sizes or different usage habits. For example, some users prefer a wider binding gap for easier finger insertion, while others prefer a narrower gap for a more stable grip on the phone. Existing technology cannot meet these differentiated needs. Utility Model Content

[0004] The purpose of this utility model is to disclose a mobile phone case that allows for the detachable assembly of the back panel and frame, and the detachable assembly of the wrist strap and back panel, making it convenient to replace a single damaged part as needed, while also facilitating the adjustment of the restraint interval.

[0005] To achieve the above objectives, this utility model discloses:

[0006] A phone case, including,

[0007] The main body shell includes a frame and a back plate. The back plate is disposed at one end of the frame. The frame is provided with a first connecting part. The back plate is provided with a second connecting part and a third connecting part. The second connecting part is detachably connected to the first connecting part.

[0008] A wrist strap is provided on the side of the back panel away from the frame. The wrist strap has a fourth connecting part, which is detachably connected to the third connecting part. The wrist strap is used to form a binding gap with the back panel when the fourth connecting part and the third connecting part are connected. The width of the binding gap is adjustable.

[0009] As an optional implementation, the back panel and the frame surround to form a receiving groove; the back panel has a first side and a second side, the first side facing the receiving groove, and the second side facing away from the first side; the two ends of the first side are a first end and a second end, respectively, and the third connecting part is disposed on the first end and the second end; the wrist strap is disposed on the second side, and both ends of the wrist strap extend from the second side to the first side and are connected to the third connecting part.

[0010] As an optional implementation, the wristband includes a main body segment and two connecting segments. A fourth connecting portion is disposed on the connecting segments. One of the connecting segments is connected to a third connecting portion on the first end via the fourth connecting portion, and the other connecting segment is connected to a third connecting portion on the second end via the fourth connecting portion. The main body segment is disposed on the second side and forms the binding interval with the second side. Both ends of the main body segment extend from the first side to the second side and are respectively connected to the two connecting segments.

[0011] As an optional implementation, the connecting segment is provided with a plurality of the fourth connecting portions, or both the first end and the second end are provided with a plurality of the third connecting portions.

[0012] As an optional implementation, both the first end and the second end are provided with mounting grooves, and the third connecting part is disposed in the mounting groove. The mounting groove is used to accommodate the connecting segment when the third connecting part is connected to the fourth connecting part.

[0013] As an optional implementation, the back plate is provided with a clearance groove on the outer periphery of the frame, the clearance groove being used to accommodate the end of the main body segment.

[0014] As an alternative implementation, the hand strap or the main body segment is made of an elastic material.

[0015] As an optional implementation, the end of the frame extends inward to form a flange, the flange having a first side edge and a first end edge, and the first connecting portion is disposed on the first end edge; the outer periphery of the back plate extends outward to form a boss, the boss having a second side edge and a second end edge, and the second connecting portion is disposed on the second end edge; the first connecting portion and the second connecting portion are connected so that the flange abuts against the outside of the boss, and the second end edge abuts against the first end edge, and the second side edge abuts against the first side edge.

[0016] As an optional implementation, the first connecting portion includes a plurality of connecting protrusions, which are circumferentially spaced on the first end edge along the flange; the second connecting portion includes a plurality of connecting grooves, which are circumferentially spaced on the second end edge along the boss; the plurality of connecting protrusions and the plurality of connecting grooves are engaged in a one-to-one correspondence.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model of a mobile phone case allows for the detachable assembly of the back panel and frame, as well as the wrist strap and back panel, facilitating the replacement of individual damaged parts as needed. It also allows for easy adjustment of the binding interval. Specifically, based on hand size or grip requirements, the originally connected fourth and third connecting parts can be easily detached, and then the third / fourth connecting parts can be connected to other fourth / third connecting parts, thereby adjusting the distance between the wrist strap and the back panel and changing the width of the binding interval until it suits the user's habits. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a mobile phone case according to an embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of the mobile phone case according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure when the back plate and the hand strap are connected according to an embodiment of the present utility model;

[0023] Figure 4 for Figure 3 A structural diagram from another perspective;

[0024] Figure 5 This is a cross-sectional schematic diagram of a mobile phone case according to an embodiment of the present utility model;

[0025] Figure 6 for Figure 1 A structural diagram from another perspective.

[0026] Explanation of key figure labels:

[0027] 10. Main shell; 11. Frame; 111. Connecting protrusion; 112. Flange; 12. Back plate; 121. Connecting groove; 122. Third connecting part; 123. First side; 124. Second side; 125. Mounting groove; 126. Clearance groove; 127. Boss; 13. Receiving groove; 20. Hand strap; 201. Fourth connecting part; 202. Main body section; 203. Connecting section. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0031] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0032] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0033] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0034] Please see Figure 1 and Figure 2 This application provides a mobile phone case, which includes a main body shell 10 and a wrist strap 20. Specifically, the main body shell 10 includes a frame 11 and a back panel 12. The back panel 12 is disposed at one end of the frame 11. The frame 11 has a first connecting portion, and the back panel 12 has a second connecting portion and a third connecting portion 122. The second connecting portion is detachably connected to the first connecting portion. (See reference...) Figure 2 as well as Figure 6 The hand strap 20 is located on the side of the back panel 12 away from the frame 11, and the hand strap 20 is provided with a fourth connecting part 201. The fourth connecting part 201 is detachably connected to the third connecting part 122. The hand strap 20 is used to form a binding gap with the back panel 12 when the fourth connecting part 201 is connected to the third connecting part 122, and the width of the binding gap is adjustable.

[0035] Based on this structure, when using the phone case of this utility model, during the assembly of the phone case, first align the back plate 12 of the main body shell 10 with the end of the frame 11 that has the first connecting part, and then connect the second connecting part of the back plate 12 with the first connecting part of the frame 11 to complete the detachable connection and assemble the complete main body shell 10.

[0036] If the wristband 20 is to be used, the fourth connecting part 201 of the wristband 20 is connected to the third connecting part 122 of the back panel 12 to achieve a detachable connection of the wristband 20. This allows for easy detachment of the previously connected fourth connecting part 201 and third connecting part 122 according to hand size or grip requirements. The third connecting part 122 / fourth connecting part 201 can then be connected to other fourth connecting parts 201 / third connecting parts 122, thereby adjusting the distance between the wristband 20 and the back panel 12 and changing the width of the restraint interval until it suits the user's habits. During use, the user's palm passes through the restraint interval and holds the phone, with the wristband 20 fitting snugly against the back of the user's hand.

[0037] If the frame 11 or back panel 12 needs to be replaced, the corresponding part can be removed by separating the second connecting part from the first connecting part; if the hand strap 20 is not needed, the hand strap 20 can be removed by disconnecting the fourth connecting part 201 from the third connecting part 122.

[0038] Therefore, the back panel 12 and the frame 11 are detachably connected and assembled, which not only makes it convenient to replace a single damaged part as needed (such as replacing only the frame 11 if the frame 11 is worn), reducing replacement costs, but also allows for different styles of frame 11 or back panel 12 to meet personalized appearance requirements.

[0039] Meanwhile, the detachable wristband 20 is adaptable to various scenarios. When commuting or exercising, the adjustable width of the wristband 20 allows your fingers to be securely held in place, reducing the risk of your phone slipping. For everyday use, when you want a slim and lightweight design, simply detach the wristband 20, balancing practicality and portability. The adjustable width of the restraint interval can be adjusted according to different user hand sizes (such as adults and teenagers) or grip styles (single-finger hook grip, multi-finger support), avoiding the problems of traditional fixed intervals being "too loose and easy to slip, too tight and pressy," thus improving grip comfort.

[0040] As an optional implementation, the back panel 12 and the frame 11 form a receiving groove 13. See also... Figure 3 as well as Figure 4 The back panel 12 has a first side 123 and a second side 124. Specifically, the first side 123 faces the receiving groove 13, and the second side 124 is opposite to the first side 123. The first side 123 has a first end and a second end, respectively, and the aforementioned third connecting portion 122 is disposed on the first end and the second end. Furthermore, a wrist strap 20 is disposed on the second side 124, and both ends of the wrist strap 20 extend from the second side 124 to the first side 123 and connect to the third connecting portion 122.

[0041] When in use, place the hand strap 20 on the second side 124 of the back plate 12, so that both ends of the hand strap 20 extend from the second side 124 to the first side 123 respectively, and mate with the third connecting part 122 on the first end and the second end, so as to realize the detachable connection of the hand strap 20. According to the hand size or grip requirements, adjust the connection position of the two ends of the hand strap 20 and the third connecting part 122 to change the distance between the hand strap 20 and the second side 124 of the back plate 12, thereby adjusting the width of the restraint interval to suit the usage habits.

[0042] When the frame 11 or back panel 12 needs to be replaced, separate the second connecting part of the back panel 12 from the first connecting part of the frame 11, and the corresponding part can be removed individually; when the wrist strap 20 is not needed, disconnect the connection between the two ends of the wrist strap 20 and the third connecting part 122, and remove the wrist strap 20 from the second side 124.

[0043] Therefore, the wrist strap 20 is connected to the third connecting part 122 at the first end and the second end respectively, forming a symmetrical and stable connection structure, which improves the load-bearing capacity of the wrist strap 20 and reduces the risk of the phone slipping. Combined with the adjustable binding interval, it can adapt to different hand sizes and gripping methods, solving the problems of unstable connection and inconvenient adjustment of traditional wrist straps 20. The wrist strap 20 is only located on the second side 124, and the extension connection at both ends is not exposed in the receiving groove 13, ensuring a neat appearance after the phone is installed.

[0044] As an optional implementation, the wrist strap 20 includes a main body segment 202 and two connecting segments 203. The aforementioned fourth connecting portion 201 is disposed on the connecting segment 203, and one connecting segment 203 is connected to the third connecting portion 122 on the first end via the fourth connecting portion 201, while the other connecting segment 203 is connected to the third connecting portion 122 on the second end via the fourth connecting portion 201. The main body segment 202 is disposed on the second side surface 124 and forms the binding interval with the second side surface 124 at a distance, with both ends of the main body segment 202 extending from the first side surface 123 to the second side surface 124 and respectively connecting to the two connecting segments 203.

[0045] In use, first place the main body segment 202 on the second side 124 of the back plate 12, so that both ends of the main body segment 202 extend from the first side 123 to the second side 124; then, align the fourth connecting part 201 of one connecting segment 203 with the third connecting part 122 at the first end, and align the fourth connecting part 201 of the other connecting segment 203 with the third connecting part 122 at the second end, thus completing the overall installation of the hand strap 20. If it is necessary to adjust the binding interval, the distance between the main body segment 202 and the second side 124 can be changed by adjusting the connection position of the two connecting segments 203 and the corresponding third connecting parts 122, thereby adapting to different grip requirements.

[0046] When it is necessary to disassemble the wrist strap 20, first disconnect the connection between the fourth connecting part 201 and the third connecting part 122 of the two connecting sections 203, and then remove the main body section 202 from the second side 124 to achieve the overall disassembly of the wrist strap 20.

[0047] In this way, the wrist strap 20 is connected to the third connecting part 122 at the first and second ends of the back plate 12 through two connecting sections 203 respectively, forming a symmetrical two-point fixing structure. Compared with a single-point connection, it is more stable and can effectively support the weight of the phone, reducing the risk of the wrist strap 20 falling off and causing the phone to drop when held. The main body section 202 and the second side 124 form a binding gap. The segmented design allows the main body section 202 to fit the curvature of the hand more closely, improving the grip comfort.

[0048] When adjusting the binding interval, the connection positions of the two connecting segments 203 can be finely adjusted to ensure that the spacing between the main body segment 202 and the second side 124 is uniform, avoiding the spacing offset problem that is prone to occur when adjusting the traditional one-piece wrist strap 20. The main body segment 202 is only located on the second side 124, ensuring a clean overall appearance of the phone case and balancing practicality and aesthetics.

[0049] As an optional implementation, the connecting segment 203 is provided with a plurality of fourth connecting portions 201, or both the first end and the second end are provided with a plurality of third connecting portions 122.

[0050] In use, depending on the required binding interval width, select a fourth connecting part 201 on the connecting segment 203 (or a third connecting part 122 on the end), mate one connecting segment 203 with the third connecting part 122 at the first end, and mate the other connecting segment 203 with the third connecting part 122 at the second end to complete the installation of the hand strap 20. If the interval needs to be adjusted, simply disconnect the connection and replace the fourth connecting part 201 / third connecting part 122 that mates with the end of the connecting segment 203 to change the distance between the main body segment 202 and the second side 124.

[0051] Therefore, whether the connecting section 203 has multiple fourth connecting parts 201 or the end has multiple third connecting parts 122, it can provide multiple connection options, achieving a wider range of restraint interval adjustment compared to a single connection point. For example, users with larger hands can choose a connection combination with a larger gap, while users with smaller hands or who prefer a tighter grip can choose a combination with a smaller gap. It also adapts to different grip methods such as single-finger hook grip and multi-finger assistance, solving the problem of insufficient adaptability of traditional single-position adjustment.

[0052] As an optional implementation, both the first end and the second end are provided with mounting grooves 125, and the third connecting part 122 is disposed in the mounting groove 125, wherein the mounting groove 125 is used to accommodate the connecting segment 203 when the third connecting part 122 is connected to the fourth connecting part 201.

[0053] Thus, when the connecting segment 203 is aligned with the mounting groove 125 at the first end, and the fourth connecting portion 201 on the connecting segment 203 mates with the third connecting portion 122 in the mounting groove 125, the connecting segment 203 is embedded and accommodated within the mounting groove 125. Since the connecting segment 203 is accommodated within the mounting groove 125, it does not protrude from the first side 123 of the back panel 12, avoiding friction or interference between the connecting segment 203 and the phone in the receiving groove 13. This ensures that the phone fits smoothly and securely after being placed in the receiving groove 13, preventing phone wobbling caused by the protrusion of the connecting segment 203.

[0054] As an alternative implementation, the back plate 12 is provided with a relief groove 126 on the outer periphery of the frame 11, and the relief groove 126 is used to accommodate the end of the main body segment 202.

[0055] Thus, during installation, the main body segment 202 of the hand strap 20 is first placed on the second side 124 of the back plate 12, so that both ends of the main body segment 202 extend from the first side 123 to the second side 124. The portion of the main body segment 202 that bends from the first side 123 toward the second side 124 forms a bent segment, which is correspondingly embedded in the clearance groove 126 on the outer periphery of the back plate 12. Then, the two connecting segments 203 are aligned with the mounting grooves 125 at the first and second ends, respectively, so that the fourth connecting part 201 mates with the third connecting part 122 in the mounting groove 125, and the connecting segment 203 is embedded in the mounting groove 125.

[0056] It should be noted that without the clearance groove 126, the end of the main body segment 202 is prone to spatial interference with the frame 11, resulting in the frame 11 and the back panel 12 not being assembled tightly or the main body segment 202 not being able to extend smoothly; while the clearance groove 126 is set to accommodate the end of the main body segment 202, so that the installation of the hand strap 20 and the assembly of the main body shell 10 do not affect each other, ensuring the overall structural compatibility.

[0057] Meanwhile, after the end of the main body segment 202 is embedded in the relief groove 126, the relief groove 126 can form a two-way limit on the main body segment 202, which not only restricts its lateral sliding along the back plate 12 plane, but also prevents the main body segment 202 from tilting upward when subjected to force. Together with the fixing of the connecting segment 203 and the mounting groove 125, the overall installation of the hand strap 20 is more stable, reducing the change in the restraint interval caused by the offset of the main body segment 202 when gripping.

[0058] As an alternative implementation, the hand strap 20 or the main body segment 202 is made of an elastic material.

[0059] The elastic material can be silicone, fiber cloth, or other similar materials. The hand strap 20 or main body 202 made of elastic material can naturally stretch or contract with hand gripping movements. Even if the binding interval is adjusted to the conventional size, the elasticity of the material can adapt to hands of different sizes (such as adult and teenager fingers and palms), avoiding the problems of non-elastic materials being "too tight and pressing on the hand, or too loose and slippery". Especially when the number of adjustable intervals is limited, the elasticity can compensate for the size difference between the intervals, further expanding the range of adaptability.

[0060] Furthermore, in this application, when only the main body segment 202 of the wrist strap 20 is made of elastic material, the connecting segment 203 of the wrist strap 20 can be made of rigid / semi-rigid material (such as TPU connecting segment 203), while the end of the back plate 12 is made of plastic material. In this case, the third connecting part 122 can be a raised buckle, and the material can be hard plastic or elastic TPU. The fourth connecting part 201 is set as a recessed groove that matches the shape of the buckle, and its inner wall can be provided with a limiting groove that adapts to the barb; or conversely, the third connecting part 122 is a groove, and the fourth connecting part 201 is a buckle.

[0061] When the connecting section 203 of the wrist strap 20 is made of fabric (such as elastic fiber fabric connecting section 203), the third connecting part 122 can be set as the hook side of hook and loop fastener, and the fourth connecting part 201 can be set as the loop side of hook and loop fastener; or the third connecting part 122 is the loop side and the fourth connecting part 201 is the hook side, with the two areas matching. In this case, the hook and loop fastener can be directly sewn or pasted onto the connecting section 203, and the hook and loop fastener at the end of the back panel 12 can be fixed by pasting or injection molding.

[0062] As an optional implementation method, see [link / reference]. Figure 2 as well as Figure 5 The end of the frame 11 extends inward to form a flange 112, and the flange 112 has a first side edge and a first end edge, with a first connecting portion disposed on the first end edge. Correspondingly, the outer periphery of the back plate 12 extends outward to form a boss 127, the boss 127 has a second side edge and a second end edge, with a second connecting portion disposed on the second end edge. The first connecting portion and the second connecting portion are connected so that the flange 112 abuts against the outer side of the boss 127, and the second end edge abuts against the first end edge, and the second side edge abuts against the first side edge.

[0063] The second end edge of the boss 127 is disposed opposite to the first side surface 123 of the back plate 12, and the second side edge is the outer peripheral surface of the boss 127.

[0064] When assembling the main body shell 10, align the boss 127 of the back plate 12 with the flange 112 of the frame 11, so that the flange 112 is located outside the boss 127. At the same time, make the second end edge of the boss 127 correspond to the first end edge of the flange 112, and the second side edge correspond to the first side edge, ensuring that the first connecting part and the second connecting part are aligned. Then, the first connecting part on the first end edge and the second connecting part on the second end edge are mated and fixed (for example, if it is a snap-fit ​​structure, press the flange 112 and the boss 127 to make the snap-fit ​​engage with the slot). At this time, the flange 112 is tightly against the outside of the boss 127, completing the assembly of the main body shell 10 and forming a receiving slot 13 for placing the mobile phone.

[0065] If the frame 11 or back panel 12 needs to be replaced, disassemble according to the type of connection structure (such as gently prying the flange 112 to release the buckle, separating the magnetic piece, etc.) to separate the first connection part from the second connection part. Then, offset the boss 127 from the flange 112 to remove the frame 11 or back panel 12 separately.

[0066] In this way, the fitting structure between the flange 112 and the boss 127 can prevent external dust and debris from entering the receiving groove 13 from the junction of the frame 11 and the back plate 12, thus protecting the internal components of the mobile phone. Specifically, the flange 112 abuts against the outside of the boss 127, and the second end edge abuts against the first end edge and the second side edge abuts against the first side edge, forming a "three-sided fitting" positioning structure. This avoids gaps or misalignment after the frame 11 and the back plate 12 are assembled, reducing the possibility of the mobile phone shaking in the receiving groove 13.

[0067] As an optional implementation, the first connecting portion includes a plurality of connecting protrusions 111, which are spaced apart circumferentially on the first end edge along the flange 112. Correspondingly, the second connecting portion includes a plurality of connecting grooves 121, which are spaced apart circumferentially on the second end edge along the boss 127. The plurality of connecting protrusions 111 and the plurality of connecting grooves 121 are engaged in a one-to-one manner.

[0068] When assembling the main body shell 10, align the flange 112 with the outer side of the boss 127, so that each connecting protrusion 111 corresponds to the position of a connecting groove 121. At the same time, ensure that the first side of the flange 112 is aligned with the second side of the boss 127, and the first end of the flange 112 is aligned with the second end of the boss 127. After alignment, press the flange 112 towards the boss 127 so that the multiple connecting protrusions 111 are inserted into the connecting grooves 121 one by one. At this time, the flange 112 is tightly against the outer side of the boss 127, and the second end is completely against the first end and the second side is completely against the first side, completing the assembly of the main body shell 10 and forming a stable receiving groove 13.

[0069] When disassembly is required, gently pry the flange 112 (or back plate 12) along the joint between the flange 112 and the boss 127 to make the connecting protrusion 111 disengage from the connecting groove 121. Then, by disengaging the flange 112 and the boss 127, the frame 11 or the back plate 12 can be removed separately.

[0070] Therefore, the multiple connecting protrusions 111 and grooves are distributed circumferentially, and after being snapped together, they can form a full circumferential limit, effectively preventing circumferential rotational displacement after the frame 11 and the back plate 12 are assembled. Compared with a single connection point, the structural stability is greatly improved, ensuring that the receiving groove 13 has a regular shape and does not affect the installation of the mobile phone.

[0071] In addition, the first connecting part can be a plurality of small magnetic blocks spaced apart along the flange 112, and the second connecting part can be a plurality of magnetic grooves spaced apart along the boss 127. Magnetic plates with opposite polarities are embedded in the grooves. The magnetic blocks and magnetic grooves are attached one by one, automatically aligning during installation and easily separating by pulling during disassembly. This is suitable for scenarios where ease of installation and disassembly is required.

[0072] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A mobile phone case, characterized in that: include, The main body shell (10) includes a frame (11) and a back plate (12). The back plate (12) is disposed at one end of the frame (11). The frame (11) is provided with a first connecting part. The back plate (12) is provided with a second connecting part and a third connecting part (122). The second connecting part is detachably connected to the first connecting part. A wrist strap (20) is provided on the side of the back plate (12) away from the frame (11). The wrist strap (20) is provided with a fourth connecting part (201). The fourth connecting part (201) is detachably connected to the third connecting part (122). The wrist strap (20) is used to form a binding gap with the back plate (12) when the fourth connecting part (201) is connected to the third connecting part (122). The width of the binding gap is adjustable.

2. The mobile phone case according to claim 1, characterized in that: The back plate (12) and the frame (11) surround to form a receiving groove (13); the back plate (12) has a first side (123) and a second side (124), the first side (123) faces the receiving groove (13), and the second side (124) is opposite to the first side (123); the two ends of the first side (123) are a first end and a second end, respectively, and the third connecting part (122) is disposed on the first end and the second end; the wrist strap (20) is disposed on the second side (124), and both ends of the wrist strap (20) extend from the second side (124) to the first side (123) and are connected to the third connecting part (122).

3. The mobile phone case according to claim 2, characterized in that: The wrist strap (20) includes a main body segment (202) and two connecting segments (203). A fourth connecting part (201) is disposed on the connecting segment (203). One of the connecting segments (203) is connected to the third connecting part (122) on the first end through the fourth connecting part (201), and the other connecting segment (203) is connected to the third connecting part (122) on the second end through the fourth connecting part (201). The main body segment (202) is disposed on the second side (124) and forms the binding interval with the second side (124) at a distance. Both ends of the main body segment (202) extend from the first side (123) to the second side (124) and are respectively connected to the two connecting segments (203).

4. The mobile phone case according to claim 3, characterized in that: The connecting segment (203) is provided with a plurality of fourth connecting parts (201), or the first end and the second end are each provided with a plurality of third connecting parts (122).

5. The mobile phone case according to claim 3, characterized in that: Both the first end and the second end are provided with mounting grooves (125), and the third connecting part (122) is disposed in the mounting groove (125). The mounting groove (125) is used to accommodate the connecting segment (203) when the third connecting part (122) is connected to the fourth connecting part (201).

6. The mobile phone case according to claim 3, characterized in that: The back plate (12) is provided with a relief groove (126) on the outer periphery of the frame (11), and the relief groove (126) is used to accommodate the end of the main body segment (202).

7. The mobile phone case according to any one of claims 3-6, characterized in that: The wrist strap (20) or the main body segment (202) is made of an elastic material.

8. The mobile phone case according to claim 1, characterized in that: The end of the frame (11) extends inward to form a flange (112), the flange (112) has a first side and a first end, and the first connecting part is disposed on the first end; the outer periphery of the back plate (12) extends outward to form a boss (127), the boss (127) has a second side and a second end, and the second connecting part is disposed on the second end; the first connecting part is connected to the second connecting part so that the flange (112) abuts against the outside of the boss (127), and the second end abuts against the first end, and the second side abuts against the first side.

9. The mobile phone case according to claim 8, characterized in that: The first connecting portion includes a plurality of connecting protrusions (111), which are spaced apart circumferentially on the first end edge along the flange (112); the second connecting portion includes a plurality of connecting grooves (121), which are spaced apart circumferentially on the second end edge along the boss (127); the plurality of connecting protrusions (111) and the plurality of connecting grooves (121) are engaged one-to-one.

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