Convenient-to-install shell structure of mobile phone mainboard

Abstract

The invention discloses a mobile phone mainboard shell structure convenient to install, and relates to the technical field of mainboard installation, the mobile phone mainboard shell structure comprises an upper cover, a lower cover connected with the upper cover and a mainboard body located in the lower cover, a plastic frame is fixedly installed in the lower cover, and a movable frame is installed in each side wall of the plastic frame; a plurality of connecting parts are further arranged in each side wall of the plastic frame, a pressing plate is arranged on each connecting part, according to the shell structure of the mobile phone mainboard convenient to install, the mainboard body can be effectively pre-fixed through the pressing plates and flexible rubber pads on the pressing plates, a double-layer winding sleeve is rotated by rotating a moving shaft body, and therefore the mainboard body can be conveniently installed; the rope body can control the movable frame to conduct position adjustment in the plastic frame, the stress rod frame drives the pressing plate to conduct angle adjustment under the action of the action rod frame, the main board body is fixed through the flexible rubber pad on the pressing plate by means of the arc-shaped protruding block and the rolling ball, and therefore an operator can conveniently install the main board body.

Description

Technical Field

[0001] The invention relates to the technical field of mainboard installation, in particular to a shell structure of a mobile phone mainboard which is easy to install. Background Art

[0002] As the core component of the mobile phone, the motherboard of the elderly phone carries all the basic functions of the mobile phone. It integrates a variety of electronic components and realizes signal transmission, processing and control through complex circuit connections. The motherboard of the elderly phone is mainly composed of the following parts: Chipset: including processor (CPU), baseband chip, etc., responsible for processing data and signals; capacitors and inductors: used to store electric energy and filter to ensure stable circuit operation; transistors: as electronic switches, control the on and off of current to realize logical operations; resistors: adjust the current size to protect the circuit from overcurrent damage; connectors: used to connect the motherboard with other components, such as screens, batteries, cameras, etc.; other auxiliary components: such as diodes, transistor arrays, integrated circuits, etc., together constitute a complete circuit system; When installing the mobile phone motherboard, first, you need to gently place the motherboard on the installation position, ensure that all interfaces and screw holes are aligned, and then fix the motherboard with screws, and then connect the screen, camera, speaker and other cables to the corresponding interfaces on the motherboard respectively, ensure that each cable is plugged in tightly to avoid looseness, and after ensuring that all connections are correct, turn on the phone to test whether it can work normally. During the installation of the motherboard, the reserved installation holes of the motherboard need to be aligned with the screw holes of the shell. After alignment, the staff installs the screws in sequence. However, when installing the screws, since the installation of the screws requires holding the motherboard on one side and turning the screws on the other side, and the space in the shell is relatively small (usually the space in the shell is slightly larger than the size of the motherboard), the staff with relatively less installation experience are prone to applying too much force to the motherboard during the installation process, resulting in displacement, that is, except for the holes where the screws are being installed, the remaining reserved holes may have misaligned screw holes, so that the position of the motherboard may need to be adjusted multiple times during the installation process, affecting the installation efficiency of the motherboard. For this reason, we propose a shell structure for a mobile phone motherboard that is easy to install. Summary of the invention

[0003] The purpose of the present invention is to provide a housing structure of a mobile phone mainboard that is easy to install, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shell structure of a mobile phone motherboard that is easy to install, comprising an upper cover, a lower cover connected to the upper cover by screws, and a motherboard body located inside the lower cover, a plastic frame adapted to the inner wall of the lower cover is fixedly installed inside the lower cover, and a plurality of mutually connected movable frames are installed inside each side wall of the plastic frame, and the movable frame is slidably connected to the side wall of the plastic frame, and a plurality of connecting parts are also arranged inside each side wall of the plastic frame, each of the connecting parts is provided with a pressing plate for pre-fixing the motherboard body, and the pressing plate corresponds to the movable frame one by one, the pressing plate includes a supporting area and an acting area, the connecting part is used to support the pressing plate, a plurality of force-bearing rod frames are fixedly installed on the outer wall of the supporting area, a plurality of action rod frames are fixedly installed on the inner wall of the movable frame, and the action rod frames apply an action force to the force-bearing rod frames during movement so that the pressing plate can adjust the angle, and a plurality of slots are arranged on each side wall of the plastic frame.

[0005] Preferably, the connecting part includes a mounting sleeve fixedly mounted on the top inner wall of the plastic frame, and a limiting shaft body rotatably connected to its inner wall is mounted on the mounting sleeve, and one end of the limiting shaft body is rotatably connected to the bottom inner wall of the plastic frame, and the supporting area is mounted on the limiting shaft body and slidably connected to the outer wall of the limiting shaft body.

[0006] Preferably, a rolling ball movably connected to the inner wall of the support area is installed on the support area, and an arc-shaped protrusion is fixedly installed on the inner wall of the movable frame. When the action area is rotated to the outside of the plastic frame through the groove, the rolling ball is located on the movement trajectory of the arc-shaped protrusion.

[0007] Preferably, a torsion spring is connected between the mounting sleeve and the limiting shaft, and a reset spring is fixedly mounted on the inner wall of the bottom of the plastic frame, and the reset spring is in contact with the supporting area.

[0008] Preferably, circular sleeves are fixedly installed at two corners of the plastic frame, and a double-layer winding sleeve rotatably connected to the inner wall is installed inside the circular sleeve, and two groups of ropes connected to the ends of the movable frame are wound in parallel on the double-layer winding sleeve, and the extension lines of the center points of the two groups of rope ends are vertical, and a constant force spring is connected between the movable frame connected to the rope body and the inner wall of the plastic frame.

[0009] Preferably, the double-layer winding sleeve is also equipped with a movable shaft body which is slidably connected to its inner wall, and one end of the movable shaft body passes through the inner wall at the top of the circular sleeve and extends to the outside, a cavity is provided at the bottom of the circular sleeve, and the other end of the movable shaft body is located inside the cavity, and a telescopic shaft body is also fixedly installed in the area where the movable shaft body is located in the cavity.

[0010] Preferably, a plurality of guide blocks are fixedly mounted on the inner wall of the cavity, and the guide blocks are distributed in a circular shape at equal angles on the inner wall of the cavity, wherein one side of the guide block is an inclined surface and the other side is a right-angle surface, and the guide block is located on the motion trajectory of the telescopic shaft.

[0011] Preferably, an annular track fixedly connected to the inner wall of the cavity is further provided below the guide block, and a plurality of vertical slide rails corresponding to the telescopic shaft body are fixedly mounted on the annular track, and the telescopic shaft body can slide within the vertical slide rails and the annular track in a limited manner.

[0012] Preferably, the double-layer winding sleeve is connected to the inner wall of the circular sleeve with a second torsion spring, wherein a buffer spring is fixedly mounted on the inner wall of the bottom of the cavity, and the end of the movable shaft is in contact with the buffer spring.

[0013] Preferably, a plurality of flexible rubber pads are fixedly mounted at the end of the active area, and each of the flexible rubber pads is provided with a plurality of heat dissipation holes.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the pressure plate and the flexible rubber pad thereon to effectively pre-fix the mainboard body, and the double-layer winding sleeve is rotated by rotating the movable shaft, so that the rope body can control the movable frame to adjust the position within the plastic frame, so that under the action of the action rod frame, the force-bearing rod frame drives the pressure plate to adjust the angle, and utilizes the arc-shaped protrusion and the rolling ball to fix the mainboard body with the flexible rubber pad on the pressure plate, thereby, on the one hand, facilitating the operator to install the mainboard body, and on the other hand, the flexible rubber pad can effectively increase the fixing strength of the mainboard body, thereby avoiding the mainboard body from loosening during use by the user.

[0015] The present invention can effectively limit the rotation direction of the telescopic shaft through the guide block, avoid the loosening of the flexible rubber pad during the pre-fixing of the main board body, and can quickly reset the movable shaft under the action of the vertical slide rail and the annular rail, and can effectively release the pre-fixation of the main board body by the flexible rubber pad, so that the operator can disassemble the main board body, and then under the action of the guide block, the double-layer winding sleeve can be limited, which is convenient for the operator to adjust the misaligned main board body at any time during the installation process, so as to improve the installation quality and speed of the main board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the internal structure of the lower cover of the present invention; Figure 3 This is a schematic diagram of the internal structure of the lower cover of the present invention; Figure 4 It is a schematic diagram of the local structure of the plastic frame of the present invention; Figure 5 This is a schematic diagram of the connecting portion structure of the present invention; Figure 6 It is a schematic diagram of the separation of the connecting portion and the pressing plate structure of the present invention; Figure 7 It is a top view schematic diagram of the movable frame and the pressing plate structure of the present invention; Figure 8 It is a schematic diagram of the separation of the movable frame, the connecting part and the pressing plate structure of the present invention; Fig. 9 It is a schematic diagram of a partially cutaway structure of a circular sleeve of the present invention; Fig.10 This is a schematic diagram of the internal structure of the circular sleeve of the present invention; Fig.11 This is a schematic diagram of the position structure of the guide block and the telescopic shaft of the present invention; Fig.12 It is a schematic diagram of the vertical slide rail and the annular track structure of the present invention.

[0017] In the figure: 1. upper cover; 2. lower cover; 3. main board body; 4. plastic frame; 41. slot; 5. moving frame; 51. action rod frame; 52. arc-shaped protrusion; 53. constant force spring; 6. connecting part; 61. mounting sleeve; 62. limit shaft body; 63. torsion spring 1; 64. reset spring; 7. pressure plate; 71. supporting area; 72. action area; 73. force rod frame; 74. flexible rubber pad; 75. heat dissipation hole; 76. rolling ball; 8. circular sleeve; 81. double-layer winding sleeve; 82. rope body; 83. moving shaft body; 84. cavity; 85. telescopic shaft body; 86. guide block body; 87. circular track; 88. vertical slide rail; 89. torsion spring 2; 80. buffer spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-12The present invention provides a technical solution: a shell structure of a mobile phone motherboard that is easy to install. The present invention makes corresponding improvements to the technical problems in the background technology, so as to facilitate the installation of the motherboard inside the shell and improve the working efficiency of the motherboard installation inside the shell. The present invention comprises an upper cover 1, a lower cover 2 connected to the upper cover 1 by screws, and a motherboard body 3 located inside the lower cover 2, wherein the motherboard body 3 is fixed to the lower cover 2 by screws, and electrical units such as a screen and buttons are also pasted on the motherboard body 3, a plastic frame 4 adapted to the inner wall of the lower cover 2 is fixedly installed inside the lower cover 2, and a plurality of interconnected movable frames 5 are installed inside each side wall of the plastic frame 4, the plastic frame 4 is square in shape, and the movable frame 5 is slidably connected to the side wall of the plastic frame 4, and the movable frame 5 is connected to the side wall of the plastic frame 4 by sliding. Figure 2 and attached Figure 3 As shown, a circular sleeve 8 is fixedly installed at two corners of the plastic frame 4, a constant force spring 53 is connected between the mobile frame 5 close to the circular sleeve 8 in each side wall of the plastic frame 4 and the inner wall of the plastic frame 4, and a double-layer winding sleeve 81 is installed inside the circular sleeve 8 to be rotatably connected to its inner wall, and two groups of ropes 82 connected to the ends of the mobile frame 5 are wound in parallel on the double-layer winding sleeve 81. Fig. 9 As shown, the extension lines of the center points of the ends of the two groups of rope bodies 82 are in a vertical state, and then the two groups of rope bodies 82 are connected to the moving frames 5 in the two side walls of the plastic frame 4. When the double-layer winding sleeve 81 rotates clockwise (positively), the moving frame 5 will move toward the circular sleeve 8 under the action of the rope body 82, and the constant force spring 53 is in a compressed state; A plurality of connecting parts 6 are arranged inside each side wall of the plastic frame 4, and a pressing plate 7 for pre-fixing the main board body 3 is arranged on each connecting part 6, and the pressing plate 7 corresponds to the mobile frame 5 one by one, and the pressing plate 7 includes a supporting area 71 and an action area 72, wherein the connecting part 6 is used to support the pressing plate 7, and the connecting part 6 is used to support the pressing plate 7. Figure 4 , Attachment Figure 5 and attached Figure 8 As shown, a plurality of flexible rubber pads 74 are fixedly installed at the end of the active area 72, and a plurality of heat dissipation holes 75 are opened on each flexible rubber pad 74. The flexible rubber pad 74 can contact with the main board body 3 to play a pre-fixing role, and a plurality of slots 41 are provided on each side wall of the plastic frame 4. Figure 4 As shown, if the pressure plate 7 located on the connecting portion 6 is adjusted in angle, it will move from the inside of the plastic frame 4 to the outside through the slot 41, and be located at the corresponding position of the main board body 3, which can effectively pre-fix the main board, and a plurality of force-bearing rod frames 73 are fixedly installed on the outer wall of the supporting area 71, and a plurality of action rod frames 51 are fixedly installed on the inner wall of the movable frame 5, and the action rod frames 51 apply force to the force-bearing rod frames 73 during the movement so that the pressure plate 7 can be adjusted in angle.

[0020] As a further limitation of the present invention, the connecting portion 6 includes a mounting sleeve 61 fixedly mounted on the inner wall of the top of the plastic frame 4, and a limiting shaft 62 rotatably connected to the inner wall thereof is mounted on the mounting sleeve 61, and one end of the limiting shaft 62 is rotatably connected to the inner wall of the bottom of the plastic frame 4, and the supporting area 71 is mounted on the limiting shaft 62 and slidably connected to the outer wall of the limiting shaft 62, and the supporting area 71 is mounted on the limiting shaft 62 and slidably connected to the outer wall of the limiting shaft 62, and the supporting area 71 is connected to the inner wall of the limiting shaft 62. Figure 4 and attached Figure 6 As shown, when the double-layer winding sleeve 81 rotates clockwise, the moving frame 5 performs a directional movement in the plastic frame 4 toward the circular sleeve 8 under the action of the rope body 82. In this process, the moving frame 5 squeezes the constant force spring 53. During the movement of the moving frame 5, multiple action rod frames 51 on its inner wall move synchronously with it. During the movement, the action rod frame 51 applies an action force to the force-bearing rod frame 73 on the outer wall of the supporting area 71. The force-bearing rod frame 73 is subjected to the action force to drive the supporting area 71 to perform a limited rotation on the limiting shaft 62, so that the supporting area 71 can drive the action area 72 and the multiple flexible rubber pads 74 thereon to adjust the angle. That is, in the initial state, the pressure plate 7 (including the supporting area 71 and the action area 72) located in the plastic frame 4 will move to the outside of the plastic frame 4 through the slot 41. A torsion spring 63 is connected between the mounting sleeve 61 and the limiting shaft 62, and a reset spring 64 is fixedly mounted on the inner wall of the bottom of the plastic frame 4, the reset spring 64 is in contact with the support area 71, and a rolling ball 76 movably connected to the inner wall of the support area 71 is mounted on the support area 71, the connection between the rolling ball 76 and the support area 71 is preferably connected in a rolling limiting manner, and an arc-shaped protrusion 52 is fixedly mounted on the inner wall of the movable frame 5, and when the action area 72 is rotated to the outside of the plastic frame 4 through the slot 41, the rolling ball 76 is located on the movement trajectory of the arc-shaped protrusion 52.

[0021] In order to facilitate the operator to rotate the double-layer winding sleeve 81, the present invention is provided with a movable shaft body 83 slidably connected with the inner wall thereof on the double-layer winding sleeve 81, and one end of the movable shaft body 83 passes through the inner wall at the top of the circular sleeve 8 and extends to the outside, a cavity 84 is provided at the bottom of the circular sleeve 8, and the other end of the movable shaft body 83 is located inside the cavity 84, and the double-layer winding sleeve 81 is connected to the inner wall of the circular sleeve 8 by a torsion spring 89, and a telescopic shaft body 85 is fixedly installed in the area where the movable shaft body 83 is located in the cavity 84. During the specific installation process, the operator can rotate the two movable shaft bodies 83 in turn, so that the double-layer winding sleeve 81 is rotated, wherein a plurality of guide blocks 86 are fixedly installed on the inner wall of the cavity 84, and the guide blocks 86 are distributed at equal angles in a ring shape on the inner wall of the cavity 84, wherein one side of the guide block body 86 is an inclined surface and the other side is a right-angle surface, and the guide block body 86 is located on the movement trajectory of the telescopic shaft body 85, combined with the attached Fig.12As shown, when the movable shaft 83 rotates clockwise (i.e., the double-layer winding sleeve 81 rotates forward), the telescopic shaft 85 on the outer wall of the movable shaft 83 will first pass through the inclined surface of the guide block 86 during the movement. If the movable shaft 83 rotates in the opposite direction, it will be blocked by the right-angle surface of the guide block 86, wherein an annular track 87 fixedly connected to the inner wall of the cavity 84 is also provided under the guide block 86, and a plurality of vertical slide rails 88 corresponding to the telescopic shaft 85 are fixedly installed on the annular track 87, and the telescopic shaft 85 can slide within a limited position in the vertical slide rails 88 and the annular track 87, wherein a buffer spring 80 is fixedly installed on the inner wall of the bottom of the cavity 84, and the end of the movable shaft 83 is in contact with the buffer spring 80.

[0022] Specifically, when installing the mainboard body 3, the operator first places the mainboard body 3 inside the lower cover 2, and then aligns the reserved installation holes of the mainboard body 3 with the screw holes of the lower cover 2. After alignment, the staff presses the lower cover 2 with one hand and rotates one end of one of the movable shafts 83 located outside the circular sleeve 8 with the other hand. It should be noted that when assembling the mobile phone, it is usually placed on a plane, so that the lower cover 2 is not easily displaced when subjected to force. The movable shaft 83 drives the double-layer winding sleeve 81 to rotate clockwise, so that the movable frame 5 moves in the plastic frame 4 under the action of the rope body 82. During the movement of the movable frame 5, the action rod frame 51 on the inner wall thereof applies a force to the force-bearing rod frame 73 on the outer wall of the supporting area 71, so that the supporting area 71 rotates on the limiting shaft 62. Since the supporting area 71 is slidably connected to the limiting shaft 62, the limiting shaft 62 rotates synchronously with it, and the limiting During the rotation of the shaft body 62, the torsion spring 63 between it and the mounting sleeve 61 will be deformed, and then the support area 71 drives the action area 72 to move from the inside of the plastic frame 4 to the outside through the slot 41. At this time, the action area 72 and the flexible rubber pad 74 thereon will move to the top of the main board body 3, but will not contact the main board body 3. When the multiple action rod frames 51 on the inner wall of the moving frame 5 no longer apply force to the force-bearing rod frames 73, the pressing plate 7 (including the support area 71 and the action area 72) has been adjusted in angle, and the operator can observe the alignment of the reserved mounting holes of the lower main board body 3 and the screw holes of the lower cover 2. If they are still in the aligned state, the moving shaft body 83 can continue to rotate clockwise; As mentioned above, when the movable shaft body 83 rotates clockwise, the telescopic shaft body 85 on the outer wall of the movable shaft body 83 will move synchronously with it. Fig.10 and attached Fig.11As shown in the figure, during the movement, the end of the telescopic shaft 85 will pass through the guide block 86 and move along the inclined surface of the guide block 86. When the telescopic shaft 85 passes through the inclined surface of the guide block 86, the telescopic shaft 85 will be affected by the dumping surface of the guide block 86 and shrink, and move to the right angle surface of the guide block 86 to reset. When the double-layer winding sleeve 81 rotates clockwise, the torsion spring 2 89 on the inner wall of the circular sleeve 8 will deform accordingly. Then, when the operator observes the alignment of the reserved mounting hole of the main board body 3 and the screw hole of the lower cover 2: the torsion spring 2 89 will drive the double-layer winding sleeve 81 to rotate counterclockwise. However, since the moving shaft 83 and the inner wall of the double-layer winding sleeve 81 are in sliding connection, and the telescopic shaft 85 on the outer wall of the moving shaft 83 will be hindered by the right angle surface of the guide block 86 during the counterclockwise rotation, the moving shaft 83 and the double-layer winding sleeve 81 cannot rotate counterclockwise in the above state. During observation, if the reserved installation holes of the mainboard body 3 and the screw holes of the lower cover 2 are aligned, the staff can continue to rotate the moving shaft 83, and the double-layer winding sleeve 81 continues to drive the moving frame 5 to move through the rope body 82. Figure 7 As shown, the arc-shaped protrusion 52 on the inner wall of the movable frame 5 will move synchronously therewith. Since the pressure plate 7 (including the support area 71 and the action area 72) has been adjusted in angle, the rolling ball 76 will be adjusted to the movement trajectory of the arc-shaped protrusion 52. When the arc-shaped soil block moves to the rolling ball 76, it will exert a force on the rolling ball 76, so that the pressure plate 7 moves downward and squeezes the return spring 64 during the descent. The action area 72 on the pressure plate 7 will make the flexible rubber pad 74 contact with the main board body 3 during the descent. It should be noted that the flexible rubber pad 74 is in an arc-shaped outward expansion state. During the descent, the flexible rubber pad 74 will change shape and expand outward on the main board body 3 to increase the limiting area, thereby achieving the purpose of pre-fixing the main board body 3. At this time, the main board body 3 has been preliminarily limited. Then the operator continues to rotate another movable shaft 83 and repeats the above operation. After the main board body 3 is pre-fixed, the corresponding screw installation operation can be performed; Combined with Figure 9-12As shown, it should be noted that, during the process from the beginning of the rotation of the movable shaft 83 to the end (rotation to the end refers to the pre-fixation of the main board body 3 by the flexible rubber pad 74), the telescopic shaft 85 on the outer wall of the movable shaft 83 rotates from just above one of the vertical slide rails 88 to just above the other vertical slide rail 88. If the subsequent staff needs to disassemble the main board body 3, the movable shaft 83 can be pressed down to make the telescopic shaft 85 enter the vertical slide rail 88 (at this time, the telescopic shaft 85 no longer passes through the guide block 86 during the movement). During the pressing process, the buffer spring 80 is in a compressed state. When the telescopic shaft 85 passes through the corresponding vertical slide rail 88 and enters the annular track 87, the double-layer winding sleeve 81 will rotate counterclockwise under the action of the torsion spring 2 89. When the telescopic shaft 85 rotates to just below the corresponding vertical slide rail 88 in the initial state, the movable shaft 83 is The shaft 83 will cause the telescopic shaft 85 to return to the initial position through the vertical slide rail 88 under the action of the compressed buffer spring 80. During the counterclockwise rotation of the moving shaft 83, the constant force spring 53 will cause the moving frame 5 to move to the initial position, and the arc-shaped protrusion 52 will no longer exert a force on the rolling ball 76. The pressure plate 7 rises to the initial height under the action of the reset spring 64. Subsequently, the action rod frame 51 on the inner wall of the moving frame 5 will exert a force on the force-bearing rod frame 73 during the reset process, and the pressure plate 7 will return to the plastic frame 4 under the action of the torsion spring 63. The operator can disassemble the main board body 3. The structural design of the present invention is convenient for the operator to install the main board body 3 on the one hand, and the flexible rubber pad 74 can effectively increase the fixing strength of the main board body 3 on the other hand, thereby avoiding the main board body 3 from loosening during use by the user.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A housing structure of a mobile phone motherboard that is easy to install, comprising an upper cover (1), a lower cover (2) connected to the upper cover (1) by screws, and a motherboard body (3) located inside the lower cover (2), characterized in that: A plastic frame (4) adapted to the inner wall of the lower cover (2) is fixedly installed inside the lower cover (2), and a plurality of mutually connected movable frames (5) are installed inside each side wall of the plastic frame (4), and the movable frames (5) are slidably connected to the side walls of the plastic frame (4), and a plurality of connecting parts (6) are also arranged inside each side wall of the plastic frame (4), and each of the connecting parts (6) is provided with a pressing plate (7) for pre-fixing the main board body (3), and the pressing plate (7) is connected to the movable frame (5). ) correspond one to one, the pressure plate (7) includes a supporting area (71) and an action area (72), the connecting portion (6) is used to support the pressure plate (7), a plurality of force-bearing rod frames (73) are fixedly installed on the outer wall of the supporting area (71), a plurality of action rod frames (51) are fixedly installed on the inner wall of the movable frame (5), and the action rod frames (51) apply force to the force-bearing rod frames (73) during movement so that the pressure plate (7) is adjusted in angle, and a plurality of slots (41) are provided on each side wall of the plastic frame (4).

2. The housing structure of a mobile phone motherboard that is easy to install according to claim 1, characterized in that: The connecting portion (6) comprises a mounting sleeve (61) fixedly mounted on the top inner wall of the plastic frame (4), and a limiting shaft (62) rotatably connected to the inner wall of the mounting sleeve (61) is mounted on the mounting sleeve (61), and one end of the limiting shaft (62) is rotatably connected to the bottom inner wall of the plastic frame (4), and the supporting area (71) is mounted on the limiting shaft (62) and slidably connected to the outer wall of the limiting shaft (62).

3. The housing structure of a mobile phone motherboard that is easy to install according to claim 2, characterized in that: A rolling ball (76) movably connected to the inner wall of the support area (71) is mounted on the support area (71), and an arc-shaped protrusion (52) is fixedly mounted on the inner wall of the movable frame (5). When the action area (72) is rotated to the outside of the plastic frame (4) through the slot (41), the rolling ball (76) is located on the movement track of the arc-shaped protrusion (52).

4. The housing structure of a mobile phone motherboard that is easy to install according to claim 2, characterized in that: A torsion spring (63) is connected between the mounting sleeve (61) and the limiting shaft (62), and a return spring (64) is fixedly mounted on the inner wall of the bottom of the plastic frame (4), the return spring (64) being in contact with the support area (71).

5. The housing structure of a mobile phone motherboard that is easy to install according to claim 1, characterized in that: The plastic frame (4) has circular sleeves (8) fixedly mounted at two corners, and a double-layer winding sleeve (81) rotatably connected to the inner wall of the circular sleeve (8) is mounted inside the circular sleeve (8), and two groups of ropes (82) connected to the ends of the movable frame (5) are wound in parallel on the double-layer winding sleeve (81), and the extension lines of the center points of the ends of the two groups of ropes (82) are in a vertical state, and a constant force spring (53) is connected between the movable frame (5) connected to the ropes (82) and the inner wall of the plastic frame (4).

6. The housing structure of a mobile phone motherboard that is easy to install according to claim 5, characterized in that: The double-layer winding sleeve (81) is also provided with a movable shaft (83) slidably connected to the inner wall thereof, and one end of the movable shaft (83) penetrates the inner wall of the top of the circular sleeve (8) and extends to the outside, a cavity (84) is provided at the bottom of the circular sleeve (8), and the other end of the movable shaft (83) is located inside the cavity (84), and a telescopic shaft (85) is fixedly installed in the area where the movable shaft (83) is located in the cavity (84).

7. The housing structure of a mobile phone motherboard that is easy to install according to claim 6, characterized in that: A plurality of guide blocks (86) are fixedly mounted on the inner wall of the cavity (84), and the guide blocks (86) are distributed in a circular manner at equal angles on the inner wall of the cavity (84), wherein one side of the guide block (86) is an inclined surface and the other side is a right-angled surface, and the guide block (86) is located on the movement trajectory of the telescopic shaft (85).

8. The housing structure of a mobile phone motherboard that is easy to install according to claim 7, characterized in that: An annular track (87) fixedly connected to the inner wall of the cavity (84) is also provided below the guide block (86), and a plurality of vertical slide rails (88) corresponding to the telescopic shaft (85) are also fixedly mounted on the annular track (87), and the telescopic shaft (85) can slide within the vertical slide rails (88) and the annular track (87) in a limited manner.

9. The housing structure of a mobile phone motherboard that is easy to install according to claim 6, characterized in that: The double-layer winding sleeve (81) and the inner wall of the circular sleeve (8) are connected to a second torsion spring (89), wherein a buffer spring (80) is fixedly mounted on the inner wall of the bottom of the cavity (84), and the end of the movable shaft (83) is in contact with the buffer spring (80).

10. The housing structure of a mobile phone motherboard that is easy to install according to claim 1, characterized in that: A plurality of flexible rubber pads (74) are fixedly mounted on the end of the action area (72), and each of the flexible rubber pads (74) is provided with a plurality of heat dissipation holes (75).

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