Mobile phone shell with backboard and corner piece capable of being replaced in DIY (do it yourself) mode

Abstract

The utility model discloses a mobile phone shell with a backboard and corner pieces capable of being replaced in a DIY mode, a complex anti-falling corner protection structure in the background technology is changed into a simple structure suitable for installation and locking, assembling grooves are formed in the four corners of a mobile phone shell body, the assembling grooves are divided into the assembling inner grooves and the assembling outer grooves, and the assembling inner grooves are matched with the assembling outer grooves. The corner piece is arranged to be the clamping portion and the external portion, the locking positioning piece is arranged and comprises locking clamping grooves and locking clamping blocks, the locking clamping grooves are formed in the left side and the right side of the assembling inner groove, the locking clamping blocks are arranged on the outer side of the clamping portion, the locking clamping grooves are matched with the locking clamping blocks, and the locking clamping blocks are arranged on the outer side end face of the clamping portion. According to the mobile phone shell, clamping is smoother during installation, the mobile phone shell is not prone to cracking in the later period, the annular clamping groove is formed in the side frame of the mobile phone shell body, the back plate and the mobile phone shell body are arranged in a separated mode, the back plate is arranged in the annular clamping groove and limited through the corner piece, a subsequent consumer can select the type of the back plate by himself / herself to install the back plate, and the mobile phone shell is quite convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone case technology, and in particular to a mobile phone case with a DIY replaceable back panel and corner pieces. Background Technology

[0002] CN218783819 discloses a drop-proof protective case that protects the corners of the phone case from damage caused by drops by setting drop-proof corner protectors at the corners. The drop-proof corner protectors are installed with the phone case using a groove and protrusion fit. However, the structure of this patent also has some problems. For example, the structure of locking by using a groove and the concave-convex fit of the embedded unit is too complicated. Moreover, the groove between the external embedded units acts as a locking mechanism with the groove. With long-term use, (its connecting neck 223) is prone to tearing and deformation due to excessive stress and pulling force. In addition, most current phone cases have a back panel and a main body that are integrally formed and cannot be separated. The back of the back panel is often used to install charging brackets, phone stands, rotating support components, magnetic brackets, or decorative components. These functional components generally cannot be assembled on a single phone case. Therefore, different consumers have different preferences and needs, and factories need to provide multiple combinations of the main body and back panel, which greatly affects production efficiency and finished product price. Therefore, the applicant started to develop a phone case with a freely replaceable back panel. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a mobile phone case with a DIY replaceable back panel and corner pieces, so as to solve the technical problems mentioned in the background art.

[0004] To solve the technical problem, this utility model adopts the following technical solution:

[0005] A DIY replaceable back panel and corner pieces mobile phone case includes a main body of the mobile phone case, the main body of the mobile phone case has a back panel and a side frame, and also includes corner pieces. The four corners of the side frame extend outward to form functional corners, and each of the four functional corners has an assembly groove on its inner side. The corner pieces are detachably assembled with the side frame through the assembly grooves. One side of the side frame has an annular insert groove, and the back panel is inserted into the annular insert groove and is pressed and limited by the corner pieces.

[0006] Specifically, the corner piece includes an insert portion and an outer portion, wherein the length and width diameters of the insert portion are larger than those of the outer portion. The assembly groove includes an inner assembly groove and an outer assembly groove that are interconnected. The inner assembly groove is located on the inner sidewall of the side frame, and the outer assembly groove is located on the outer side of the inner assembly groove. The length and width diameters of the inner assembly groove are larger than those of the outer assembly groove. The insert portion and the inner assembly groove are interlocked. A portion of the outer portion is located inside the outer assembly groove, and a portion is exposed. The back plate is pressed and limited by the insert portion.

[0007] Specifically, the annular recess is provided with a positioning groove, and the back plate is provided with a positioning block at the position corresponding to the positioning groove. When the back plate and the annular recess are installed, they are precisely positioned and installed by relying on the positioning block and the positioning plate.

[0008] It also includes a locking and positioning component, which includes a locking slot and a locking block. The left and right sides of the assembly inner groove are provided with locking slots, and the outer side of the insert is provided with a locking block corresponding to the locking slot.

[0009] Specifically, the two sides of the insert portion extend outward and protrude to form a first insert portion and a second insert portion, and both the upper and lower surfaces of the first insert portion and the second insert portion are provided with avoidance grooves.

[0010] Specifically, the length of the first insert portion is less than the length of the second insert portion.

[0011] Specifically, a buffer groove is provided on one side of the external part.

[0012] Specifically, the outer side of the buffer groove is provided with a hanging hole.

[0013] Specifically, the side frame includes a skeleton frame and a soft rubber frame, the skeleton frame is located at the lower end of the soft rubber frame, and the annular insert groove is provided on the skeleton frame.

[0014] Specifically, the upper end of the skeleton frame is provided with a fitting bone protrusion, and the inner side of the soft rubber frame is provided with a fitting recess corresponding to the position of the fitting bone protrusion.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, on the one hand, transforms the complex anti-drop corner protection structure in the background technology into a simpler structure suitable for installation and locking. It involves setting an assembly groove at each of the four corners of the phone case body, with the assembly groove divided into an inner and outer groove. The corner piece is configured as an insert and an outer part. A locking positioning component is provided, including a locking slot and a locking block. Locking slots are located on the left and right sides of the inner groove, and a locking block is located on the outer side of the insert. The locking slots and locking blocks cooperate with each other, and the locking block is located on the outer end face of the insert, making installation smoother and less prone to cracking later. On the other hand, this patent separates the back panel from the phone case body by setting an annular insert groove inside the side frame. The back panel is placed in the annular insert groove and limited by the corner piece. Consumers can then choose the type of back panel and install it themselves, which is very convenient. Attached Figure Description

[0017] Figure 1 This is one of the assembly drawings of the overall structure of the mobile phone case for this utility model patent;

[0018] Figure 2 This is the second assembly drawing of the overall structure of the mobile phone case for this utility model patent.

[0019] Figure 3 This is the third assembly drawing (front view) of the overall structure of the mobile phone case for this utility model patent.

[0020] Figure 4 This is one of the exploded views of the overall structure of the mobile phone case for this utility model patent;

[0021] Figure 5 This is the second exploded view of the overall structure of the mobile phone case for this utility model patent.

[0022] Figure 6 This is one of the exploded views of the side frame structure in the mobile phone case of this utility model patent;

[0023] Figure 7 This is the second exploded view of the side frame structure of the mobile phone case in this utility model patent.

[0024] Figure 8 This is a schematic diagram showing the fit between the mounting groove and the corner piece in the mobile phone case of this utility model patent.

[0025] Figure 9 This is a schematic diagram illustrating several embodiments of corner component structures in the mobile phone case of this utility model patent;

[0026] Figures 10-13 These are several application embodiments of the mobile phone case for which this utility model patent exists;

[0027] In the figure: main body of mobile phone case 10A, back plate 1, side frame 2, corner piece 3, functional corner 201, assembly groove 21, annular insert groove 202, insert part 31, external part 32, assembly inner groove 211, assembly outer groove 212, positioning groove 202a, positioning block 101, locking slot 41, locking block 42, first insert part 311, second insert part 312, clearance groove 311a, buffer groove 321, hanging hole 33, skeleton frame 22, soft rubber frame 23, fitting bone protrusion 221, fitting card recess 231. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] refer to Figures 1 to 13 :

[0030] This embodiment discloses a phone case with a DIY replaceable back panel 1 and corner pieces 3, including a phone case body 10A. The phone case body 10A has a separately configured back panel 1 and side frame 2, and also includes corner pieces 3. The four corners of the side frame 2 extend outward to form functional corners 201, and each of the four functional corners 201 has an assembly groove 21 on its inner side. These functional corners 201 have multiple functions. Since the phone case itself is mostly made of plastic, the outward extension or protrusion of the four functional corners 201 can provide a shock-absorbing function when the phone is dropped. In addition, the outward protrusion of the four functional corners 201 forms the top, bottom, left, and right sides of the phone case. The inward-curving structure on both sides makes the phone case easier to grip, thus preventing it from falling. This is called the functional corner 201. Specifically, the corner piece 3 is detachably assembled with the side frame 2 via the mounting groove 21. Here, the installation of the corner piece 3 and the mounting groove 21 preferably adopts an insert structure for disassembly and assembly. One side of the side frame 2 is provided with an annular insert groove 202. The back panel 1 is inserted into the annular insert groove 202 and is pressed and limited by the corner piece 3. With this setting, the back panel 1 can be disassembled separately. If it is necessary to disassemble the back panel 1, it is only necessary to first remove the four corner pieces 3, replace the back panel 1, and then install the four corner pieces 3.

[0031] Specifically, the corner piece 3 includes a recessed portion 31 and an outer portion 32, wherein the length and width diameters of the recessed portion 31 are larger than those of the outer portion 32 to ensure that the corner piece 3 will not come outward. The assembly groove 21 includes an inner assembly groove 211 and an outer assembly groove 212 that are interconnected. The inner assembly groove 211 is located on the inner sidewall of the side frame 2, and the outer assembly groove 212 is located outside the inner assembly groove 211. The length and width diameters of the inner assembly groove 211 are larger than those of the outer assembly groove 212. The recessed portion 31 and the inner assembly groove 211 are mutually fitted together. A portion of the outer portion 32... The back plate 1 is partially exposed within the assembly groove 212 and is pressed and limited by the lower end face of the insert 31. Specifically, the four corners of the back plate 1 are pressed and limited by the lower end face of the insert 31. In practice, it is preferable to form the annular insert groove 202 by a downward recess, so that after the back plate 1 is inserted, the upper end face of the back plate 1 is still lower than or equal to the position of the insert 31 after installation. In another preferred embodiment, the rounded corners of the back plate 1 and the corner piece 3 are differentiated, i.e., the rounded corner of the back plate 1 is smaller than that of the corner piece 3. Alternatively, the four corners of the back plate 1 can be limited. Other optional embodiments can be referenced. Figure 6 The back panel 1 also has an annular groove at its edge, which fits perfectly with the annular insert groove 202. This ensures that the back panel 1 is flush with the end face of the side frame 2 both before and after it is installed in the side frame 2.

[0032] Specifically, in order to enable the back plate 1 to be installed and positioned more quickly during installation and to prevent displacement after successful installation, the annular recess 202 is provided with a positioning groove 202a, and the back plate 1 is provided with a positioning block 101 at the position corresponding to the positioning groove 202a. When the back plate 1 is installed with the annular recess 202, it is precisely positioned and installed by means of the positioning block 101 and the positioning plate.

[0033] Specifically, it also includes locking and positioning components, which include locking slots 41 and locking blocks 42. Locking slots 41 are provided on the left and right sides of the assembly inner groove 211, and locking blocks 42 are provided on the outer side of the insert part 31 corresponding to the locking slots 41. The locking slots 41 and locking blocks 42 are mutually engaged. In particular, the traditional method is to directly set a groove at the insert end of the corner piece 3 and set a block in the assembly groove 21. After long-term use, the insert end is prone to cracking under various stresses and pulling forces. Here, the locking block 42 is set on the outer end face of the insert end, and the locking slot 41 is set on the end face of the assembly inner groove 211. Neither of them is set on the side, so it will not cause cracking of the insert end. Moreover, the insertion and engagement are faster during installation. As soon as the insert end is inserted into place, it can be engaged in place with the groove shape of the insert end and the assembly inner groove 211. After being engaged, it is not easy to fall out.

[0034] Specifically, the two sides of the insert portion 31 extend outward and protrude to form a first insert portion 311 and a second insert portion 312. Both the upper and lower surfaces of the first insert portion 311 and the second insert portion 312 are provided with clearance grooves 311a. By providing clearance grooves 311a, the corner piece 3 can be installed not only from the outside to the inside, but also from the outside to the inside. This is because the corner piece 3 is a buffer part made of plastic or soft rubber, which has a certain degree of extensibility. With the clearance grooves 311a, when the corner piece 3 is inserted inward, the further bending of the clearance grooves 311a allows the first insert portion 311 or the second insert portion 312 to first enter the inner mounting groove 211 and then be inserted obliquely into the other insert portion 31. This allows for installation from the outside to the inside. In some cases, the corner piece 3 can be replaced without removing the phone.

[0035] Specifically, the length of the first insert portion 311 is less than the length of the second insert portion 312.

[0036] Specifically, the external part 32 has a buffer groove 321 on one side, which provides a certain degree of cushioning. When the phone case falls downwards, the four corners are usually the most impacted. This structure greatly reduces the impact and shock. The outer side of the buffer groove 321 has a hanging hole 33 for attaching accessories such as lanyards. The corner piece 3 also has a DIY feature, allowing different customers to choose different corner pieces 3 for installation. The manufacturer can provide a default installation configuration and also include some corner pieces 3 for customers to customize their installation. This greatly enriches the application scenarios for the phone case. For example, delivery drivers who frequently ride bicycles need to protect their phones from drops, and the back panel 1 often needs to support phone holders. In such cases, corner pieces 3 with enhanced drop protection can be selected (see reference). Figure 12 ), and select a backplate 1 with a phone holder, such as Figure 10-13 As shown, if a young woman enjoys shopping and needs to hang her phone around her neck, she can opt for the combination with the lanyard hole 33 (see reference). Figure 10 For consumers who watch a lot of movies, a standard corner piece 3 (corner piece 3 with minimal outward protrusion at the four corners) and a back panel 1 with a rotating support can be selected (see reference). Figure 13 ).

[0037] Specifically, for structural support during the production and subsequent assembly of the phone case, the side frame 2 includes a skeleton frame 22 and a soft plastic frame 23. The skeleton frame 22 is located at the lower end of the soft plastic frame 23, and the annular insert groove 202 is provided on the skeleton frame 22. During production, the skeleton frame 22 is first produced by CNC or injection molding. The skeleton frame 22 is preferably made of aluminum, PC, or hard plastic. Then, the skeleton frame 22 is placed in the mold for producing the soft plastic frame 23, and the soft plastic frame 23 is injection molded based on this. In this way, the skeleton frame 22 is integrally formed with the soft plastic frame 23. In order to make the skeleton frame 22 and the soft plastic frame 23 have a more stable structure after injection molding, the upper end of the skeleton frame 22 is provided with an inserting bone protrusion 221, and the inner side of the soft plastic frame 23 is provided with an inserting recess 231 corresponding to the position of the inserting bone protrusion 221.

[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A mobile phone case with DIY replaceable back plate and corner piece, comprising a mobile phone case body, the mobile phone case body has a back plate and a side frame, characterized in that: The side frame is provided with four corners, and functional corners are formed by extending outward at the four corners of the side frame.

2. The phone case of claim 1, wherein: The corner piece comprises an embedding part and an external part, the length and width diameter of the embedding part is larger than that of the external part, the assembly slot comprises an assembly inner slot and an assembly outer slot which are connected with each other, the assembly inner slot is located at the inner side wall of the side frame, the assembly outer slot is located at the outer side of the assembly inner slot, and the length and width diameter of the assembly inner slot is larger than that of the assembly outer slot, the embedding part and the assembly inner slot are embedded and matched with each other, a part of the external part is located in the assembly outer slot and a part is exposed, and the back plate is pressed and limited by the embedding part.

3. The phone case of claim 1, wherein: The ring-shaped embedding slot is provided with a positioning slot, the back plate is provided with a positioning block at the position corresponding to the positioning slot, and the back plate and the ring-shaped embedding slot are accurately positioned and installed by the positioning block and the positioning plate.

4. The phone case of claim 2, wherein: The assembly inner slot is provided with a locking slot on the left and right sides, and the embedding part is provided with a locking block at the position corresponding to the locking slot.

5. The phone case of claim 4, wherein: The embedding part is provided with a first embedding part and a second embedding part which are outwardly extended and protruded, and the first embedding part and the second embedding part are provided with avoiding grooves on the upper and lower surfaces.

6. The phone case of claim 5, wherein: The length of the first embedding part is smaller than that of the second embedding part.

7. The phone case of claim 2, wherein: One side of the external part is provided with a buffer groove.

8. The phone case of claim 7, wherein: The outer side of the buffer groove is provided with a hanging hole.

9. The phone case of claim 1, wherein: The side frame comprises a skeleton frame and a soft rubber frame, the skeleton frame is located at the lower end of the soft rubber frame, and the ring-shaped embedding slot is arranged on the skeleton frame.

10. The phone case of claim 9, wherein: The upper end of the skeleton frame is provided with an embedded bone convex, and the inner side of the soft rubber frame is provided with an embedded card concave at the position corresponding to the embedded bone convex.

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