Fixing structure of folding mobile terminal and connecting structure of middle shell

Abstract

The utility model provides a connecting structure of a fixing structure and a middle shell of a folding mobile terminal, which comprises a connecting clamping piece and a locking piece, can adopt a buckle type structure to connect the fixing structure and the middle shell, can prevent the connecting clamping piece from being separated, can also enable the connecting structure to be reversibly detached, and can be used for connecting the fixing structure with the middle shell. And the connection strength is basically unrelated to the length of the connecting piece, so that the thinning design of the folding mobile terminal can be facilitated.

Description

Technical Field

[0001] The utility model relates to a fixing structure of a foldable mobile terminal and a connection structure of a middle shell. The foldable mobile terminal may be a foldable mobile phone or other foldable portable electronic products. Background Art

[0002] For a foldable mobile terminal, such as an inward-folding flexible screen mobile phone, it includes a left shell and a right shell, and a middle shell located between the left shell and the right shell. Moving parts such as hinges and fixed structures are installed in the middle shell. The fixed structure is, for example, a hinge fixing seat, a middle shell cover, etc.

[0003] The fixing structure needs to be fixed to the middle case, typically using screws or welding. The latter is an irreversible connection method. Once the hinge component in the middle case needs to be replaced, the middle case and the fixing structure will be scrapped. The former, while a reversible connection method, requires a certain screw length to ensure connection strength, which will restrict the thinning design of mobile terminals. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between the fixing structure and the middle shell of a foldable mobile terminal, which can ensure the connection strength and be a reversible connection structure, while also facilitating a thinner design. To this end, this utility model adopts the following technical solutions:

[0005] A connection structure between a fixing structure and a middle shell of a foldable mobile terminal, characterized by comprising a connecting card and a locking member,

[0006] The connecting clamp includes a connecting column, a radially protruding first clamping block is provided at one end of the connecting column, and an operable pressing block is provided at the other end of the connecting column, the fixing structure is provided with a first connecting hole, the middle shell is provided with a second connecting hole at the connecting portion, a second clamping block capable of engaging with the first clamping block is provided in the second connecting hole, a space for the first clamping block to rotate is provided below the second connecting hole, the first connecting hole can be aligned with the second connecting hole, and the connecting column and the first clamping block of the clamp can be inserted, and the first clamping block can be inserted into the space for the first clamping block to engage with or release the engagement with the second clamping block, and the pressing block is located outside the opening of the first connecting hole;

[0007] The locking element includes a locking foot, and the pressure block, the first clamping block and the second clamping block occupy a partial circumferential angle in the circumferential direction, and the locking foot can be inserted into the remaining part of the circumferential direction when the first clamping block and the second clamping block are engaged, and after insertion, the first clamping block is prevented from rotating out of the range of the second clamping block. The locking foot is provided with a reversibly deformable protrusion, and the first connecting hole or the second connecting hole is provided with a groove that cooperates with the protrusion to lock the locking foot.

[0008] On the basis of adopting the above technical solutions, the present invention may also adopt the following further technical solutions, or use these further technical solutions in combination:

[0009] The first clamping block and the second clamping block are both fan-shaped blocks. The second clamping block is located on the hole wall of the second connecting hole. The first clamping block is located at the bottom end of the connecting column and radially protrudes from the connecting column.

[0010] The first clamping block, the second clamping block and the pressing block are all arranged in two opposite directions, and the pressing block is arranged on the same side as the first clamping block.

[0011] The locking element includes two locking feet arranged opposite to each other, a top structure is connected between the two locking feet, and the top structure is covered on the pressing block.

[0012] The first connecting hole is a countersunk hole, and a spiral surface is provided on the countersunk hole opening to cooperate with the pressing block to tighten the connecting clamp.

[0013] The first connecting hole is provided with anti-slip grooves at the position where it cooperates with the pressing block.

[0014] The locking element is a component in which at least the protrusion is elastic or flexible, and the connecting clamp is a metal component.

[0015] The locking element is a rubber plug, and the top structure matches the first connecting hole and fills the top of the first connecting hole.

[0016] Due to the technical solution of the present invention, the present invention can use a snap-on structure to connect the fixed structure and the middle shell, and can prevent the connecting clips from being disengaged, and can make the connecting structure reversibly disassembled. In addition, the connection strength is basically independent of the length of the connecting piece, which can contribute to the thinning design of the foldable mobile terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of the foldable mobile terminal in the embodiment of the present invention when it is in the open state.

[0018] Figure 2 for Figure 1 AA cross-sectional view.

[0019] Figure 3 for Figure 2 Magnified view of part B.

[0020] Figure 4 for Figure 1 CC cross-sectional view.

[0021] Figure 5 for Figure 4 A magnified view of part of the structure.

[0022] Figure 6 for Figure 1 Schematic diagram of the fixing structure in the illustrated embodiment.

[0023] Figure 7 for Figure 1 Resulting exploded view of the illustrated embodiment.

[0024] Figure 8 This is an enlarged view of the connecting card.

[0025] Figure 9 An enlarged view of the lock. DETAILED DESCRIPTION

[0026] Referring to the accompanying drawings, this embodiment takes an inward-folding flexible screen mobile phone as an example, which includes a left shell 101, a right shell 102 and a middle shell 103. The flexible screen is laid on the inner side of the mobile phone, and the hinge is connected to the middle shell 103. When the mobile phone is folded outward, the flexible screen is flattened and opened, and when it is folded inward, the flexible screen is folded and closed inside. The fixed structure described in the present utility model can be a fixed component or structure in the hinge or some other fixed structure on the middle shell of the mobile phone (such as a cover plate, a fixed bracket, etc.). The fixed structure 200 in this embodiment takes the middle support as an example, which serves as the middle support plate of the flexible screen and is also provided with a fixed structure in the hinge.

[0027] The fixing structure of the foldable mobile terminal and the connection structure of the middle shell provided by the utility model include a connecting card 1 and a locking member 2.

[0028] The connecting clamp 1 includes a connecting column 13, a radially protruding first clamping block 11 is provided at one end of the connecting column 13, and an operable pressing block 12 is provided at the other end of the connecting column 13 to enable the connecting clamp to be rotated. The fixing structure 200 is provided with a first connecting hole 201, and the middle shell 103 is provided with a second connecting hole 3 at the connecting position, and a second clamping block 4 that can be engaged with the first clamping block 11 is provided in the second connecting hole 3. The second connecting hole 3 is provided with a space 31 for the first clamping block 11 to rotate below the second clamping block 4. The first connecting hole 11 can be aligned with the second connecting hole 4 and can be inserted into the connecting column 13 and the first clamping block 11 of the clamp 1, and the first clamping block 11 can be inserted into the space for the first clamping block 11 to rotate and rotate to engage with or release the engagement with the second clamping block 4, and the pressing block 12 is located outside the orifice of the first connecting hole 201.

[0029] The lock member 2 includes a locking foot 21, and the pressure block 12 and the first clamping block 11 and the second clamping block 4 occupy a partial circumferential angle in the circumferential direction. The locking foot 21 can be inserted into the remaining part of the circumferential direction when the first clamping block 11 and the second clamping block 4 are engaged. After the locking foot is inserted, the first clamping block 11 is prevented from rotating out of the range of the second clamping block 4 (the engagement between the first clamping block 11 and the second clamping block 4 is released). The locking foot 21 is provided with a reversibly deformable protrusion 22, and preferably, the second connecting hole 3 is provided with a groove 203 that cooperates with the protrusion 22, and after the locking foot 21 is inserted downward, it can form an engagement with the protrusion 22, locking the locking foot 21 and preventing it from being pulled out, thereby allowing the first clamping block 11 to be rotated. When it is necessary to replace parts in the middle shell 103, if the locking pin 21 is subjected to sufficient upward external force (such as prying or pulling the locking member), the reversible deformation can occur and the protrusion 22 can be disengaged from the groove 203. In this way, after the locking pin 21 is pulled out, the locking member 2 can be rotated to remove the fixing structure 200 from the middle shell 103.

[0030] The locking member 2 is a member in which at least the protrusion 22 is elastic or flexible. Preferably, the locking member 2 can be a rubber plug or a silicone member. The connecting clamp 1 is a metal member.

[0031] Preferably, the first block 11 and the second block 4 are both fan-shaped blocks, the second block 4 is located on the hole wall of the second connecting hole 3, and the first block 11 is located at the bottom end of the connecting column 13 and radially protrudes from the connecting column 13.

[0032] Preferably, as shown in the figure, the first clamping block 11, the second clamping block 4, and the pressure block 12 are all arranged in pairs opposite to each other, and the pressure block 12 is arranged on the same side as the first clamping block 11. That is, for example, assuming that the two first clamping blocks 11 are arranged at the 6 o'clock and 12 o'clock directions relative to the circumference of the connecting column 13, the two pressure blocks 12 are arranged at the 6 o'clock and 12 o'clock directions relative to the circumference of the connecting column 13. This not only strengthens the strength of the clamping connection, but also facilitates the rotational operation of the pressure block 12, while also improving the structural reliability of the lock.

[0033] The locking member 2 includes two locking feet 21 arranged opposite to each other, and a top structure 23 is connected between the two locking feet 21. The top structure 23 covers the pressing block 12. The top structure 23 matches the first connecting hole 201 and fills the top 202 of the first connecting hole 201.

[0034] The first connection hole 201 is a countersunk hole with a spiral surface 204 at its bottom to cooperate with the pressure block 12 to tighten the connection clamp 1 and improve the connection performance. The first connection hole 201 is provided with anti-slip grooves at the part that cooperates with the pressure plate 12 (such as the spiral surface).

[0035] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the field of the present invention are included in the protection scope of the present invention.

[0036] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] In the description of this utility model, it should be understood that terms such as "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of this utility model and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used solely for brevity of description and do not indicate or imply relative importance.

Claims

1. A connection structure between a fixing structure and a middle shell of a foldable mobile terminal, characterized in that Including connecting cards and locks, The connecting clamp includes a connecting column, a radially protruding first clamping block is provided at one end of the connecting column, and an operable pressing block is provided at the other end of the connecting column, the fixing structure is provided with a first connecting hole, the middle shell is provided with a second connecting hole at the connecting portion, a second clamping block capable of engaging with the first clamping block is provided in the second connecting hole, a space for the first clamping block to rotate is provided below the second connecting hole, the first connecting hole can be aligned with the second connecting hole, and the connecting column and the first clamping block of the clamp can be inserted, and the first clamping block can be inserted into the space for the first clamping block to engage with or release the engagement with the second clamping block, and the pressing block is located outside the opening of the first connecting hole; The locking element includes a locking foot, and the pressure block, the first clamping block and the second clamping block occupy a partial circumferential angle in the circumferential direction, and the locking foot can be inserted into the remaining part of the circumferential direction when the first clamping block and the second clamping block are engaged, and after insertion, the first clamping block is prevented from rotating out of the range of the second clamping block. The locking foot is provided with a reversibly deformable protrusion, and the first connecting hole or the second connecting hole is provided with a groove that cooperates with the protrusion to lock the locking foot.

2. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 1, characterized in that The first clamping block and the second clamping block are both fan-shaped blocks. The second clamping block is located on the hole wall of the second connecting hole. The first clamping block is located at the bottom end of the connecting column and radially protrudes from the connecting column.

3. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 1, characterized in that The first clamping block, the second clamping block and the pressing block are all arranged in two opposite directions, and the pressing block is arranged on the same side as the first clamping block.

4. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 3, characterized in that The locking element includes two locking feet arranged opposite to each other, a top structure is connected between the two locking feet, and the top structure is covered on the pressing block.

5. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 1, characterized in that The first connecting hole is a countersunk hole, and a spiral surface is provided on the countersunk hole opening to cooperate with the pressing block to tighten the connecting clamp.

6. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 1 or 5, characterized in that The first connecting hole is provided with anti-slip grooves at the position where it cooperates with the pressing block.

7. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 1, characterized in that The locking component is a component in which at least the protrusion is elastic or flexible, and the connecting clamp is a metal component.

8. The connection structure of the fixing structure and the middle shell of the foldable mobile terminal according to claim 4, characterized in that The locking element is a rubber plug, and the top structure matches the first connecting hole and fills the top of the first connecting hole.

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