Lightweight mobile phone frame
By combining a honeycomb plate with silicone pillars to create a weight-reducing and stabilizing mechanism and a dust-proof mechanism, the problems of insufficient strength and dust accumulation at the charging port during the process of reducing the weight of the mobile phone frame are solved, achieving improvements in lightweighting, drop resistance, and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOHE JIANTAI PRECISION TECH CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-04
AI Technical Summary
Existing mobile phone frames suffer from insufficient strength and poor drop resistance during the weight reduction process, and the charging port is exposed for a long time, leading to dust accumulation.
The weight-reducing and stabilizing mechanism combines honeycomb panels with silicone pillars. The L-shaped groove and spiral hollow channel reduce weight and enhance structural strength. At the same time, a dustproof mechanism is designed with a cover plate and ball bearing sliding structure to prevent dust from entering.
The design achieves a lighter frame and increased strength, improves drop resistance, solves the problem of dust accumulation at the charging port, and enhances the practicality and durability of the frame.
Smart Images

Figure CN224596516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lightweight mobile phone frame technology, and in particular to a lightweight mobile phone frame. Background Technology
[0002] The phone frame is one of the core structural components of a smartphone. As an important part of the body frame, it surrounds the screen and the back cover, not only providing mechanical support for connecting the screen, back cover, and internal components, but also providing a mounting carrier for the volume buttons, power button, and SIM card slot. At the same time, it provides impact protection for the entire device in the event of drops or collisions. It is a key link in balancing the structural strength, appearance design, and user grip experience of the phone. With the continuous iteration of consumer electronics technology, users' demands for thinner, lighter, and higher-performance phones are becoming increasingly prominent. The lightweight design of the phone frame has become an important direction for technological upgrades in the industry, and its design rationality directly affects the weight, drop resistance, and overall user experience of the device. Early mobile phone frames were mostly made of a single metal material, formed by die casting, and were primarily solid. While this met basic support and protection needs, it resulted in excessive weight, with the frame accounting for a large proportion of the overall phone weight, thus reducing portability. To address this issue, the industry replaced stainless steel with lightweight aluminum alloy and reduced weight by creating straight grooves and simple hollow structures inside the frame. However, existing structures still have significant limitations. The straight grooves and hollow designs compromise the structural integrity of the frame, leading to decreased torsional strength and potential for localized breakage upon drop. To balance strength, existing frames require a relatively thick wall, and the potential for lightweighting has not been fully realized. Although existing frames have alleviated the conflict between weight reduction and strength to some extent through optimized material ratios, uneven internal stress distribution and stress concentration areas at the edges of the straight grooves lead to micro-cracks due to fatigue accumulation in these areas over long-term use, ultimately affecting the lifespan of the frame. Utility Model Content
[0003] To overcome the above shortcomings, this utility model provides a lightweight mobile phone frame, which aims to improve the problem of insufficient strength caused by the lightweighting of mobile phone frames in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a lightweight mobile phone frame, including a mobile phone frame, wherein a weight-reducing and stabilizing mechanism is provided inside the mobile phone frame, the weight-reducing and stabilizing mechanism is used to reduce the weight of the mobile phone frame and provide a cushioning effect, and a dustproof mechanism is provided on the front side of the mobile phone frame. The weight-reducing and stabilizing mechanism includes multiple honeycomb plates. The outer walls of the multiple honeycomb plates are fixedly connected to the inner perimeter of the mobile phone frame. Each honeycomb plate has multiple silicone pillars inside. The inner wall of the mobile phone frame has two L-shaped grooves on both the front and back sides. The inner wall of the mobile phone frame has a spiral hollow channel I on both the left and right sides. The rear end of the inner wall of the left spiral hollow channel I has a trapezoidal guide post I. The rear end of the trapezoidal guide post I has a spiral hollow channel II. The rear end of the inner wall of the spiral hollow channel II has a trapezoidal guide post II. The rear end of the trapezoidal guide post II has a spiral hollow channel III. The rear end of the right spiral hollow channel I has a spiral hollow channel II. The rear end of the right spiral hollow channel II has a spiral hollow channel I. The multiple spiral hollow channels I, trapezoidal guide posts I, and spiral hollow channels III are all fixedly connected with reinforcing ribs.
[0005] As a further description of the above technical solution: The dustproof mechanism includes a cover plate, on the front center of which multiple anti-slip textures are fixedly connected. A charging port is slidably connected to the rear side of the cover plate. Two fixing rivets are threadedly connected to the left front end of the cover plate. A sliding plate is fixedly connected to the rear side of the cover plate. Damping pads are fixedly connected to the upper and lower ends of the middle of the sliding plate. Multiple ball bearings are fixedly connected to the front side of the sliding plate. A sliding rail is slidably connected to the sliding plate. Sliding grooves are opened at the upper and lower ends of the sliding rail. The ball bearings are slidably connected to the inner wall of the sliding groove.
[0006] As a further description of the above technical solution: The outer wall of the mobile phone frame has a SIM card slot on the left side, and a mobile phone SIM card slot is slidably connected to the inner wall of the SIM card slot. A pinhole is provided on the right side of the mobile phone SIM card slot. A power button is slidably connected to the rear left side of the mobile phone frame, and multiple anti-slip textures are fixedly connected to the middle left side of the power button.
[0007] As a further description of the above technical solution: The top of the mobile phone frame is provided with an assembly groove, and a rubber ring is slidably connected to the inner wall of the assembly groove.
[0008] As a further description of the above technical solution: The left side of the phone frame has two volume slots, and volume buttons are slidably connected to the inner walls of both volume slots.
[0009] As a further description of the above technical solution: The rear side of the mobile phone frame has multiple heat dissipation holes, and the inner walls of the multiple heat dissipation holes are provided with waterproof and breathable mesh. The spacing between the multiple heat dissipation holes is equal.
[0010] As a further description of the above technical solution: The front left side of the mobile phone frame has multiple volume holes, and the inner walls of the multiple volume holes are provided with waterproof and breathable mesh.
[0011] As a further description of the above technical solution: The left middle part of the mobile phone frame is provided with anti-slip texture two, and the right rear end of the mobile phone frame is provided with anti-slip texture four.
[0012] This utility model has the following beneficial effects: 1. In this utility model, the weight reduction and stabilization mechanism is combined with the dustproof mechanism, and the honeycomb plate is combined with the silicone pillar to reduce weight and provide cushioning. The L-shaped groove and spiral hollow channel reduce material to achieve weight reduction, and the trapezoidal guide post and reinforcing rib enhance the structural strength. This improves the problem of difficulty in balancing the weight and strength of lightweight mobile phone frames and poor drop resistance in the prior art, and enhances the practicality and reliability of the frame.
[0013] 2. In this utility model, the dustproof mechanism of this novel device has a cover plate connected to the anti-slip texture by a fixed rivet. The sliding plate drives the ball to slide along the sliding groove and the sliding rail, and the damping pad provides damping. This structure enables the charging port to be opened smoothly when charging and closed tightly when not charging. It ensures convenient operation through the sliding structure and blocks the dust entry path by closing the cover plate, thus improving the problem of dust accumulation on the existing lightweight mobile phone frame due to the exposed charging port and enhancing the practicality and durability of the frame. Attached Figure Description
[0014] Figure 1 A perspective view of a lightweight mobile phone frame proposed in this utility model; Figure 2 This is a front view of a lightweight mobile phone frame proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a cross-sectional structural diagram of a lightweight mobile phone frame proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point B; Figure 6 for Figure 4 Enlarged view of point C; Figure 7 This is a schematic diagram showing the disassembled structure of a lightweight mobile phone frame dustproof mechanism proposed in this utility model. Figure 8 This is a schematic diagram of the structure of a lightweight mobile phone frame with anti-slip texture II proposed in this utility model.
[0015] Legend: 1. Mobile phone frame; 2. Weight reduction and stabilization mechanism; 201. Honeycomb plate; 202. Silicone pillar; 203. L-shaped groove; 204. Spiral hollow channel one; 205. Trapezoidal guide post one; 206. Spiral hollow channel two; 207. Spiral hollow channel three; 208. Reinforcing rib; 209. Trapezoidal guide post two; 3. Dustproof mechanism; 301. Cover plate; 302. Anti-slip texture three; 303. Fixing rivet; 304. Damping pad; 305, sliding plate; 306, ball bearing; 307, sliding rail; 308, sliding groove; 4, SIM card slot; 5, anti-slip texture one; 6, heat dissipation hole; 7, waterproof and breathable mesh; 8, assembly slot; 9, anti-slip texture two; 10, charging port; 11, volume button; 12, power button; 13, SIM card ejector tool slot; 14, pinhole; 15, volume groove; 16, rubber ring; 17, volume hole; 18, anti-slip texture four. Detailed Implementation
[0016] 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.
[0017] Reference Figure 4 , Figure 5 and Figure 6 In one embodiment of this utility model, a weight-reducing and stabilizing mechanism 2 is provided inside the mobile phone frame 1. The weight-reducing and stabilizing mechanism 2 is used to reduce the weight of the mobile phone frame and provide a cushioning effect. A dustproof mechanism 3 is provided on the front side of the mobile phone frame 1. The weight-reducing and stabilizing mechanism 2 and the dustproof mechanism 3 work independently of each other but work together. The weight-reducing and stabilizing mechanism 2 includes multiple honeycomb panels 201. The outer walls of the multiple honeycomb panels 201 are respectively fixedly connected to the inner perimeter of the mobile phone frame 1. The honeycomb structure of the honeycomb panels 201 can reduce material usage while ensuring structural strength. Multiple silicone pillars 202 are provided inside each of the multiple honeycomb panels 201. The silicone pillars 202 can absorb external impact through their own elastic deformation. Two L-shaped grooves 203 are opened on the front and back sides of the inner wall of the mobile phone frame 1. The L-shaped grooves 203 further reduce the weight of the frame through hollow design. Spiral hollow channels 1 204 are opened on the left and right sides of the inner wall of the mobile phone frame 1. The spiral hollow channels 1 204 can reduce weight and enhance the torsional resistance of the frame. A trapezoidal guide post 205 is provided at the rear end of the inner wall of the left spiral hollow channel 1 204. The trapezoidal guide post 205 can support and connect adjacent channels. A spiral hollow channel 206 is opened at the rear end of the trapezoidal guide post 205. The spiral hollow channel 206 continues To reduce weight and enhance torsional resistance, a trapezoidal guide post 209 is provided at the rear end of the inner wall of the spiral hollow channel 206. The trapezoidal guide post 209 further enhances structural stability. A spiral hollow channel 3 207 is opened at the rear end of the trapezoidal guide post 209. The spiral hollow channel 3 207 works in conjunction with other spiral channels to achieve overall weight reduction. A spiral hollow channel 206 is opened at the rear end of the spiral hollow channel 1 204 on the right side. A spiral hollow channel 1 204 is opened at the rear end of the spiral hollow channel 206 on the right side. A reinforcing rib 208 is fixedly connected to the interior of the multiple spiral hollow channels 1 204, the multiple trapezoidal guide posts 1 205, and the spiral hollow channel 3 207. The reinforcing rib 208 can effectively improve the structural strength of each channel and guide post. An assembly groove 8 is opened at the top of the mobile phone frame 1. The assembly groove 8 provides space for the installation of other components. A rubber ring 16 is slidably connected to the inner wall of the assembly groove 8. The rubber ring 16 can enhance the sealing and cushioning of the assembly part. Specifically, the weight-reducing and stabilizing mechanism 2 and the dustproof mechanism 3 work independently yet collaboratively. The weight-reducing and stabilizing mechanism 2 achieves weight reduction, buffering, and enhanced strength through the cooperation of its various components. Multiple honeycomb plates 201 inside the phone frame 1 utilize a honeycomb structure to reduce material while ensuring strength. Multiple silicone pillars 202 inside absorb impact through elastic deformation. The two L-shaped grooves 203 on the front and rear sides of the inner wall of the phone frame 1 have a hollow design to reduce weight. The spiral hollow channels 204 on the left and right sides of the inner wall reduce weight and enhance torsional resistance. The trapezoidal guide post 205 at the rear end of the inner wall of the left spiral hollow channel 204 supports and connects adjacent channels. The second spiral hollow channel 206 continues the functions of weight reduction and anti-torsion. The trapezoidal guide post 209 at the rear end of the inner wall of the spiral hollow channel 206 enhances the structural stability. The spiral hollow channel 3 207 at its rear end works in conjunction with other spiral channels to reduce the overall weight. The spiral hollow channel 206 at the rear end of the spiral hollow channel 1 204 on the right side and the spiral hollow channel 1 204 at the rear end of the latter work together. The reinforcing ribs 208 in multiple spiral hollow channels 1 204, trapezoidal guide post 1 205 and spiral hollow channel 3 207 improve the structural strength. The assembly groove 8 at the top of the mobile phone frame 1 provides space for component installation. The rubber ring 16 on its inner wall enhances the sealing and cushioning of the assembly part.
[0018] Reference Figure 1 , Figure 4 and Figure 7An embodiment of this utility model provides: the dustproof mechanism 3 includes a cover plate 301, which is used to cover the charging port 10 to prevent dust from entering. Multiple anti-slip textured surfaces 302 are fixedly connected to the middle of the front side of the cover plate 301. The anti-slip textured surfaces 302 are used to increase the friction between the hand and the cover plate 301 to facilitate pushing the cover plate 301. The charging port 10 is slidably connected to the rear side of the cover plate 301, which is used to enable the charging function of the mobile phone. Two fixing rivets 303 are threadedly connected to the left front side of the cover plate 301. The fixing rivets 303 are used to enhance the stability of the connection between the various components of the cover plate 301. A sliding plate 305 is fixedly connected to the rear side of the cover plate 301. The sliding plate 305 is used to drive the cover plate 301 to slide. Damping pads 304 are fixedly connected to the upper and lower ends of the middle of the sliding plate 305. The damping pads 304 are used to lift... The cover plate 301 is provided with damping force to prevent it from shifting when not in operation. A plurality of balls 306 are fixedly connected to the front side of the sliding plate 305. The balls 306 are used to convert sliding friction into rolling friction to improve the smoothness of sliding. The sliding plate 305 is slidably connected to a sliding rail 307. The sliding rail 307 is used to limit the sliding path of the sliding plate 305. The upper and lower ends of the sliding rail 307 are provided with sliding grooves 308. The sliding grooves 308 are used to provide sliding space for the balls 306. The balls 306 are slidably connected to the inner wall of the sliding grooves 308 respectively. This connection method ensures that the balls 306 can slide stably. Two volume slots 15 are provided on the left side of the mobile phone frame 1. The volume slots 15 are used to accommodate volume buttons 11. The inner walls of the two volume slots 15 are slidably connected to volume buttons 11. The volume buttons 11 are used to adjust the volume of the mobile phone. Specifically, in the dustproof mechanism 3, the cover plate 301 blocks the charging port 10 to prevent dust from entering. Multiple anti-slip textures 302 on its front center increase the friction between the hand and the cover plate 301 for easier pushing. The rear side of the cover plate 301 is slidably connected to the charging port 10, enabling the charging function. Two fixing rivets 303 on the front left end of the cover plate 301 enhance the stability of the connections between components. The sliding plate 305 on the rear side of the cover plate 301 drives the cover plate 301 to slide. Damping pads 304 at the upper and lower ends of the middle of the sliding plate 305 provide damping force to prevent the cover plate 301 from sliding. In non-operational state, the sliding plate 305 has multiple balls 306 on the front side that convert sliding friction into rolling friction to improve smoothness. The sliding plate 305 is slidably connected to the sliding rail 307, which defines the sliding path. The sliding grooves 308 at the upper and lower ends of the sliding rail 307 provide sliding space for the balls 306. The balls 306 are slidably connected to the inner wall of the sliding groove 308 to ensure stable sliding. The two volume slots 15 on the left side of the phone frame 1 accommodate the volume buttons 11. The volume buttons 11 on the inner wall of the volume slots 15 are used to adjust the phone volume.
[0019] Reference Figure 1 , Figure 3 and Figure 8In one embodiment of this utility model: a SIM card slot 13 is provided on the left side of the outer wall of the mobile phone frame 1, which provides installation and sliding space for the mobile phone card slot 4. The mobile phone card slot 4 is slidably connected to the inner wall of the SIM card slot 13, and is used to hold a SIM card or memory card. A pinhole 14 is provided on the right side of the mobile phone card slot 4, which is used to cooperate with the SIM card pin to push out the mobile phone card slot 4. A power button 12 is slidably connected to the rear left side of the mobile phone frame 1, which is used to control the power on / off and screen lock of the mobile phone. Multiple anti-slip textures 5 are fixedly connected to the middle left side of the power button 12, which are used to increase the friction when pressing to prevent slippage. Multiple heat dissipation holes 6 are provided on the rear side of the mobile phone frame 1, which are used to dissipate heat from the mobile phone. For internal heat dissipation, the inner walls of the multiple heat dissipation holes 6 are provided with waterproof and breathable mesh 7. The waterproof and breathable mesh 7 is used to prevent water from entering while ensuring air circulation. The multiple heat dissipation holes 6 are spaced equally, which makes heat dissipation more uniform. The front left side of the mobile phone frame 1 has multiple volume holes 17. The volume holes 17 are used to transmit the audio sound of the mobile phone. The inner walls of the multiple volume holes 17 are provided with waterproof and breathable mesh 7. The waterproof and breathable mesh 7 is used to protect the internal components of the volume holes 17 from moisture. The middle left side of the mobile phone frame 1 is provided with anti-slip texture 2 9. The anti-slip texture 2 9 is used to enhance the friction on the left side when holding the mobile phone. The rear right side of the mobile phone frame 1 is provided with anti-slip texture 4 18. The anti-slip texture 4 18 is used to enhance the friction on the right side when holding the mobile phone. Specifically, the SIM card slot 13 on the left side of the outer wall of the phone frame 1 provides space for the installation and sliding of the SIM card slot 4. The SIM card slot 4, which is slidably connected to the inner wall of the SIM card slot 13, is used to place the SIM card or memory card. The pin hole 14 on the right side of the SIM card slot 4 works with the SIM card ejector to push out the SIM card slot 4. The power button 12, which is slidably connected to the rear left side of the phone frame 1, is used to control the phone's power on / off and screen lock. Multiple anti-slip textures 5, which are fixedly connected to the middle left side of the power button 12, increase the friction when pressing to prevent slippage. Multiple heat dissipation holes 6 on the rear side of the phone frame 1 are used to dissipate internal heat. The waterproof and breathable mesh 7 on the inner wall of the heat dissipation holes 6 prevents moisture from entering while ensuring air circulation. The equal spacing of the multiple heat dissipation holes 6 makes heat dissipation more uniform. Multiple volume holes 17 on the front left side of the phone frame 1 are used to transmit audio sound. The waterproof and breathable mesh 7 on the inner wall of the volume holes 17 protects the internal components from moisture. The anti-slip texture 2 9 on the middle left side of the phone frame 1 enhances the friction when holding the left side, and the anti-slip texture 4 18 on the rear right side enhances the friction when holding the right side.
[0020] Working principle: The mobile phone frame achieves lightweighting and ensures strength through multi-structure collaboration. The L-shaped groove 203 at the edge of the frame is a hollow structure, which directly reduces the amount of material used and reduces the overall weight from the edge. The honeycomb plate 201 is fixed in the L-shaped groove 203. Its special honeycomb structure further reduces weight with a hollow design. At the same time, stress is dispersed through hexagonal units to improve drop resistance and compensate for the strength loss caused by the hollow structure. The silicone pillar 202 in the middle of the honeycomb plate 201 absorbs the impact force during collision through elastic support, enhancing the anti-collision performance. The lightweight characteristics of silicone material do not add extra weight. The spiral hollow channel 1 204, spiral hollow channel 206 and spiral hollow channel 3 207 in the inner wall of the frame replace the solid design with the mechanical stability of the spiral structure. The cavity part greatly reduces the amount of material used, reducing weight. At the same time, the spiral pattern improves the structural rigidity. The trapezoidal guide post 205 between different spiral grooves forms lateral support to prevent the spiral grooves from deforming due to force. The reinforcing rib 208 in each spiral groove strengthens the longitudinal strength and prevents the groove from cracking. Furthermore, during charging, when the user presses the anti-slip texture 302 with their hand and applies a pushing force to the left, the cover plate 301 is rigidly connected to the anti-slip texture 302 via the fixing rivet 303. The pushing force is transmitted to the cover plate 301 through the fixing rivet 303, causing the cover plate 301 to move synchronously to the left, gradually removing its obstruction of the charging port and exposing the charging interface. During the movement, the damping pad 304 comes into contact with the contact surface to generate frictional damping, providing stable resistance for the sliding process and preventing the cover plate 301 from shifting unexpectedly when the phone is shaken or accidentally touched, ensuring that the charging port is always open during charging. At the same time, the sliding plate 305 connected to the cover plate 301 drives... The ball bearing 306 rolls on the inner wall of the sliding groove 308, converting sliding friction into rolling friction, significantly reducing resistance, ensuring a smooth and seamless sliding process, and improving the user experience. The sliding rail 307 is fixed to the front side of the phone frame 1, forming a rigid constraint on the movement trajectory of the cover plate 301, so that it can only slide back and forth between the closed position covering the charging hole and the open position fully exposing the charging hole, avoiding deviation. When not charging, the cover plate 301 is kept in the closed position on the right side under the damping action of the damping pad 304, completely covering the charging hole and blocking the dust entry path, thereby solving the problem of dust accumulation caused by long-term exposure of the charging hole in the prior art.
[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A light-weight mobile phone frame, comprising a mobile phone frame (1), characterized in that: The mobile phone frame (1) is provided with a weight reduction and stabilization mechanism (2) inside. The weight reduction and stabilization mechanism (2) is used to reduce the weight of the mobile phone frame and provide a buffering effect. The front side of the mobile phone frame (1) is provided with a dustproof mechanism (3). The weight reduction and stabilization mechanism (2) includes multiple honeycomb plates (201). The outer walls of the multiple honeycomb plates (201) are respectively fixedly connected to the inner perimeter of the mobile phone frame (1). Multiple silicone pillars (202) are provided inside each of the multiple (201). Two L-shaped grooves (203) are opened on the front and back sides of the inner wall of the mobile phone frame (1). A spiral hollow channel (204) is opened on the left and right sides of the inner wall of the mobile phone frame (1). A trapezoidal guide post (205) is provided at the rear end of the inner wall of the left spiral hollow channel (204). A spiral hollow channel (205) is opened at the rear end of the trapezoidal guide post (205). Channel 2 (206), the inner wall of the spiral hollow channel 2 (206) is provided with trapezoidal guide post 2 (209), the rear end of the trapezoidal guide post 2 (209) is provided with spiral hollow channel 3 (207), the rear end of the spiral hollow channel 1 (204) on the right side is provided with spiral hollow channel 2 (206), the rear end of the spiral hollow channel 2 (206) on the right side is provided with spiral hollow channel 1 (204), and the interior of the multiple spiral hollow channels 1 (204) and the multiple trapezoidal guide posts 1 (205) and the spiral hollow channel 3 (207) are respectively fixedly connected with reinforcing ribs (208).
2. The lightweight mobile phone frame according to claim 1, characterized in that: The dustproof mechanism (3) includes a cover plate (301), a plurality of anti-slip textured three-pieces (302) are fixedly connected to the middle of the front side of the cover plate (301), a charging port (10) is slidably connected to the rear side of the cover plate (301), two fixing rivets (303) are threadedly connected to the left end of the front side of the cover plate (301), a sliding plate (305) is fixedly connected to the rear side of the cover plate (301), damping pads (304) are fixedly connected to the upper and lower ends of the middle part of the sliding plate (305), a plurality of ball bearings (306) are fixedly connected to the front side of the sliding plate (305), a sliding rail (307) is slidably connected to the sliding plate (305), and sliding grooves (308) are opened at the upper and lower ends of the sliding rail (307), and the ball bearings (306) are slidably connected to the inner wall of the sliding groove (308) respectively.
3. A lightweight mobile phone frame according to claim 1, characterized in that: The outer wall of the mobile phone frame (1) has a SIM card slot (13) on the left side, and a mobile phone slot (4) is slidably connected to the inner wall of the SIM card slot (13). A pinhole (14) is opened on the right side of the mobile phone slot (4). A power switch (12) is slidably connected to the rear left side of the mobile phone frame (1). Multiple anti-slip textures (5) are fixedly connected to the middle left side of the power switch (12).
4. A lightweight mobile phone frame according to claim 1, characterized in that: The top of the mobile phone frame (1) is provided with an assembly groove (8), and a rubber ring (16) is slidably connected to the inner wall of the assembly groove (8).
5. A lightweight mobile phone frame according to claim 1, characterized in that: The left side of the mobile phone frame (1) has two volume slots (15), and the inner walls of the two volume slots (15) are slidably connected to volume buttons (11).
6. A lightweight mobile phone frame according to claim 1, characterized in that: The mobile phone frame (1) has multiple heat dissipation holes (6) on its rear side. The inner walls of the multiple heat dissipation holes (6) are provided with waterproof and breathable mesh (7), and the spacing between the multiple heat dissipation holes (6) is equal.
7. A lightweight mobile phone frame according to claim 1, characterized in that: The front left side of the mobile phone frame (1) has multiple volume holes (17), and the inner walls of the multiple volume holes (17) are provided with waterproof and breathable mesh (7).
8. A lightweight mobile phone frame according to claim 1, characterized in that: The left middle part of the mobile phone frame (1) is provided with anti-slip texture 2 (9), and the right rear end of the mobile phone frame (1) is provided with anti-slip texture 4 (18).