Mobile phone shell assembling structure capable of adjusting buckling degree
The phone case assembly structure with adjustable buckle tightness solves the problem of the phone case needing to perfectly match the phone, achieving the protection needs of phones of different sizes, reducing resource waste and environmental pollution.
Patent Information
- Application Number
- CN202520618320.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing phone cases need to fit the phone perfectly to provide effective protection. Frequent phone changes increase user costs and waste resources, and discarded phone cases put pressure on the environment.
The phone case uses an adjustable snap-fit assembly structure. The adjustable design is achieved through components such as snaps, latches, adjusting sliders, and limiting protrusions, which can accommodate different phone sizes and improve connection stability and tightness.
It reduces the time and cost for users to choose a phone case, reduces the number of discarded phone cases, reduces environmental pollution, and is suitable for different brands and models of mobile phones.
Smart Images

Figure CN223928356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile phone case technology, and in particular to a mobile phone case assembly structure with adjustable buckle tightness. Background Technology
[0002] With the development of technology, mobile phones have become increasingly widely used as a communication tool, and more and more functions are integrated into them. People's lives are becoming more and more inseparable from mobile phones. Of course, the more functions a mobile phone integrates, the more expensive it becomes. The price of some brand mobile phones has far exceeded that of a laptop. People are bound to worry about holding such expensive mobile phones, so they use mobile phone cases to protect their phones.
[0003] With the rapid advancement of technology, a series of more powerful and innovative mobile phone products emerge on the market every few months or even weeks. As a result, mobile phone upgrades are becoming increasingly frequent. Different brands and models of mobile phones often have different sizes. When users decide to change their phones, they often need to change the matching phone cases as well. Since phone cases are accessories that fit snugly against the phone, their size must perfectly match the phone body to provide good protection. This not only increases the user's additional costs but also requires time to choose a suitable phone case, comparing different brands, styles, and prices. This undoubtedly adds an extra burden to an already busy modern life. From a resource waste perspective, a large number of replaced phone cases are often discarded or left idle. These phone cases are mostly made of materials such as plastic and rubber, and their production consumes a large amount of natural resources and energy. If these discarded phone cases are not properly recycled and reused, they will not only put pressure on the environment but also further exacerbate the resource shortage. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable snap-fit mobile phone case assembly structure.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable snap-fit phone case assembly structure, including an upper shell and a lower shell. The upper shell has an upper sliding groove on its back, and each side wall of the upper sliding groove has a snap-fit groove. A snap-fit is fixed on the back of the lower shell. A snap-fit component is mirror-rotatably connected to the snap-fit surface, and a torsion spring is provided at the connection between the snap-fit component and the snap-fit. Adjustable sliding grooves are arrayed on the front of both the upper and lower shells. An adjustable slider is slidably connected inside each adjustable sliding groove, and an adjusting spring is fixed between one side of the adjustable slider and the side wall of the adjustable sliding groove.
[0006] Preferably, the buckle surface has a sliding groove, and a sliding member is slidably connected inside the sliding groove. Both ends of the sliding member are rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the side of the engaging member. When the user slides the sliding member downward, the sliding member and the connecting rod drive the engaging member to rotate inward, thereby facilitating the removal or adjustment of the buckle, which is very convenient and improves the user's comfort.
[0007] Preferably, the upper housing has locking protrusions fixed at both ends of the bottom, and the lower housing has sliding grooves at both ends of the top. The sidewalls of the sliding grooves are arrayed with limiting grooves. Limiting protrusions are slidably connected inside the limiting grooves. A limiting spring is fixed between one side of the limiting protrusion and the sidewall of the limiting groove. If only a single set of buckle structures is used, the connection stability between the upper and lower housings of the phone case is not high. To address this problem, this utility model adopts another adjustable buckle structure at the connection between the upper and lower housings. The locking protrusion at the bottom of the upper housing is inserted into the sliding groove at the top of the lower housing, squeezing the limiting protrusion. After adjustment, under the action of the limiting spring, the limiting protrusion and the locking protrusion engage on both sides, further improving the tightness between the upper and lower housings.
[0008] Preferably, the other side of the limiting protrusion is hemispherical, and hemispherical grooves are arrayed on both sides of the engaging protrusion. The hemispherical design facilitates adjustment of the position of the engaging protrusion, and the hemispherical grooves make the limiting protrusion and the engaging protrusion engage more tightly, thereby improving the tightness between the upper and lower shells.
[0009] Preferably, both the surface of the limiting protrusion and the surface of the hemispherical groove are provided with anti-slip textures. The anti-slip textures increase the friction between the surface of the limiting protrusion and the hemispherical groove, preventing the locking protrusion from loosening.
[0010] Preferably, the adjusting slider is L-shaped, and a rubber sleeve is adhered to the side wall of the adjusting slider. The rubber sleeve not only increases the friction between the adjusting slider and the peripheral surface of the mobile phone to prevent the mobile phone from falling off, but also plays a buffering role to further protect the mobile phone.
[0011] Beneficial effects
[0012] With the rapid advancement of technology, a series of more powerful and innovative mobile phone products emerge on the market every few months or even weeks. As a result, mobile phone upgrades are becoming increasingly frequent. Different brands and models of mobile phones often have different sizes. When users decide to change their phones, they often need to change the matching phone cases as well. This is because phone cases are accessories that fit snugly against the phone, and their size must perfectly match the phone body to provide good protection. However, this not only increases the user's additional cost, but also requires users to spend time choosing suitable phone cases and comparing different brands, styles, and prices. This undoubtedly adds an extra burden to an already busy modern life. From a resource waste perspective, a large number of replaced phone cases are often discarded or left idle. These phone cases are mostly made of materials such as plastic and rubber. These discarded phone cases consume a large amount of natural resources and energy in their production. If they are not properly recycled and reused, they will not only put pressure on the environment but also further exacerbate resource shortages. To address this issue, this invention employs an adjustable snap-fit structure. The snap-fit on the back of the lower case is inserted into the upper sliding groove on the back of the upper case. Depending on the length of the phone, the upper and lower cases fit snugly around the top and bottom edges of the phone. When the snap-fit is released, the locking mechanism resets under the action of a torsion spring and engages with the slot on the side wall of the upper sliding groove. Simultaneously, the adjusting slider on the front of the upper and lower cases is moved to clamp the phone's circumference according to its width. Under the action of the adjusting spring, the adjusting slider tightly engages with the phone's circumference, protecting the phone. This structure is suitable for phones of different sizes, eliminating the need for users to spend time choosing suitable phone cases and comparing different brands, styles, and prices. It also reduces the number of discarded phone cases and lowers environmental pollution. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the circumferential adjustment mechanism of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the back of the present invention;
[0016] Figure 4 This is a three-dimensional structural diagram of the buckle structure in this utility model;
[0017] Figure 5 This is a cross-sectional view of the present invention;
[0018] Figure 6 This is a three-dimensional structural diagram of the second snap-fit structure in this utility model.
[0019] Legend:
[0020] 1. Upper housing; 101. Upper slide groove; 1011. Slot; 102. Engaging protrusion; 2. Lower housing; 201. Buckle; 2011. Actuating slide groove; 202. Lower slide groove; 2021. Limiting slide groove; 4. Engaging component; 5. Connecting rod; 6. Actuating component; 9. Limiting protrusion; 10. Limiting spring; 11. Adjusting slider; 12. Adjusting spring. Detailed Implementation
[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:
[0024] Reference Figure 1-6 An adjustable snap-fit phone case assembly structure includes an upper housing 1 and a lower housing 2. The upper housing 1 has an upper sliding groove 101 on its back, and the side walls of the upper sliding groove 101 have slots 1011. The lower housing 2 has a snap-fit 201 fixed on its back. The snap-fit 201 is mirror-rotatably connected to a locking member 4, and a torsion spring is provided at the connection between the locking member 4 and the snap-fit 201. The upper housing 1 and the lower housing 2 both have an adjustable sliding groove on their front sides. An adjustable slider 11 is slidably connected inside the adjustable sliding groove. An adjusting spring 12 is fixed between one side of the adjustable slider 11 and the side wall of the adjustable sliding groove. The adjustable slider 11 is L-shaped, and a rubber sleeve is glued to the side wall of the adjustable slider 11. The rubber sleeve not only increases the friction between the adjustable slider 11 and the peripheral surface of the phone to prevent the phone from falling off, but also plays a buffering role to further protect the phone.
[0025] The buckle 201 has a sliding groove 2011 on its surface. A sliding member 6 is slidably connected inside the sliding groove 2011. Both ends of the sliding member 6 are rotatably connected to a connecting rod 5. The other end of the connecting rod 5 is rotatably connected to the side of the engaging member 4. When the user slides the sliding member 6 downward, the sliding member 6 and the connecting rod 5 drive the engaging member 4 to rotate inward, which makes it easy to pull out the buckle 201 or adjust the buckle 201. This is very convenient and improves the user's comfort.
[0026] Both ends of the bottom of the upper housing 1 are fixed with engagement protrusions 102, and both ends of the top of the lower housing 2 are provided with sliding grooves 202. The side walls of the sliding grooves 202 are provided with limit grooves 2021. Limit protrusions 9 are slidably connected inside the limit grooves 2021. A limit spring 10 is fixed between one side of the limit protrusion 9 and the side wall of the limit groove 2021. If only a single set of buckle structure is used, the connection stability between the upper and lower housings of the mobile phone case is not high. To address this problem, this utility model adopts another adjustable buckle structure at the connection between the upper and lower housings. The engagement protrusions 102 at the bottom of the upper housing 1 are inserted into the sliding grooves 202 at the top of the lower housing 2, pressing the limit protrusions 9. After adjustment, under the action of the limit springs 10, the limit protrusions 9 and the two sides of the engagement protrusions 102 are engaged, further improving the tightness between the upper and lower housings. The other side of the limiting protrusion 9 is hemispherical, and hemispherical grooves are arrayed on both sides of the engaging protrusion 102. The hemispherical design facilitates adjustment of the position of the engaging protrusion 102, and the hemispherical grooves make the engaging protrusion 9 and the engaging protrusion 102 more tightly engaged, thereby improving the tightness between the upper and lower shells. Anti-slip textures are formed on the surface of the limiting protrusion 9 and the surface of the hemispherical grooves. The anti-slip textures increase the friction between the surface of the limiting protrusion 9 and the hemispherical grooves, preventing the engaging protrusion 102 from loosening.
[0027] The working principle of this utility model is as follows: The buckle 201 on the back of the lower housing 2 is inserted into the upper sliding groove 101 on the back of the upper housing 1. According to the length of the mobile phone, the upper and lower housings are positioned to clamp the upper and lower ends of the mobile phone. The buckle 201 is released, and under the action of the torsion spring, the locking part 4 is reset and engages with the locking groove 1011 on the side wall of the upper sliding groove 101. The user slides the toggle 6 downwards, and the toggle 6 and the connecting rod 5 drive the locking part 4 to rotate inwards, thereby facilitating the removal or adjustment of the buckle 201. The locking protrusion 102 at the bottom of the upper housing 1 is inserted into the lower sliding groove 202 at the top of the lower housing 2, pressing the limiting protrusion 9. After adjustment, under the action of the limiting spring 10, the limiting protrusion 9 engages with both sides of the locking protrusion 102. At the same time, the adjusting slider 11 on the front of the upper and lower housings is moved to clamp the circumference of the mobile phone according to the width of the mobile phone. Under the action of the adjusting spring 12, the adjusting slider 11 tightly engages the circumference of the mobile phone, protecting the mobile phone.
[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A mobile phone case assembly structure with adjustable snap-fit tightness, comprising an upper housing (1) and a lower housing (2), characterized in that: The upper housing (1) has an upper sliding groove (101) on its back side, and the upper sliding groove (101) has a slot (1011) on its side wall. The lower housing (2) has a buckle (201) fixed on its back side. The buckle (201) has a mirror-rotational connection to a locking member (4), and a torsion spring is provided at the connection between the locking member (4) and the buckle (201). The upper housing (1) and the lower housing (2) both have an adjustment sliding groove in an array on their front sides. An adjustment slider (11) is slidably connected inside the adjustment sliding groove. An adjustment spring (12) is fixed between one side of the adjustment slider (11) and the side wall of the adjustment sliding groove.
2. The adjustable snap-fit mobile phone case assembly structure according to claim 1, characterized in that: The buckle (201) has a sliding groove (2011) on its surface. A sliding member (6) is slidably connected inside the sliding groove (2011). Both ends of the sliding member (6) are rotatably connected to a connecting rod (5). The other end of the connecting rod (5) is rotatably connected to the side of the locking member (4).
3. The mobile phone case assembly structure with adjustable snap-fit tightness according to claim 1, characterized in that: The upper housing (1) has locking protrusions (102) fixed at both ends of the bottom, and the lower housing (2) has sliding grooves (202) opened at both ends of the top. The sidewalls of the sliding grooves (202) are arranged with limiting grooves (2021). The limiting grooves (2021) are slidably connected with limiting protrusions (9). A limiting spring (10) is fixed between one side of the limiting protrusion (9) and the sidewall of the limiting groove (2021).
4. The mobile phone case assembly structure with adjustable snap-fit tightness according to claim 3, characterized in that: The other side of the limiting protrusion (9) is hemispherical, and hemispherical grooves are arrayed on both sides of the engaging protrusion (102).
5. The mobile phone case assembly structure with adjustable snap-fit tightness according to claim 4, characterized in that: The surface of the limiting protrusion (9) and the surface of the hemispherical groove are both provided with anti-slip texture.
6. The mobile phone case assembly structure with adjustable snap-fit tightness according to claim 1, characterized in that: The adjusting slider (11) is L-shaped, and a rubber sleeve is glued to the side wall of the adjusting slider (11).