A telescopic wristband and mobile phone case

Abstract

A telescopic wrist strap and mobile phone shell, comprising a shell and a telescopic wrist strap arranged on the mobile phone shell, the telescopic wrist strap comprising two wrist strap units and a connecting band arranged between the two wrist strap units; the connecting band is provided with a ring-shaped buckle at both ends, and a sliding channel for the wrist strap unit to slide is formed between the two ring-shaped buckles; the wrist strap unit comprises a fixed end connected with the shell and a movable end slidingly connected with the connecting band; a limiting protrusion is arranged on the side of the movable end away from the fixed end, and the limiting protrusion abuts against the ring-shaped buckle when the wrist strap unit is in a stretched state; the fixed end abuts against the ring-shaped buckle when the wrist strap unit is in a contracted state. By additionally arranging the ring-shaped buckles on both sides of the connecting band and the sliding channel between the two ring-shaped buckles, the holes in the wrist strap unit or the connecting band are avoided, thereby affecting the overall structural strength; the movable end of the wrist strap unit can be completely stretched or completely contracted in the sliding channel, and the space utilization rate is high.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessories technology, and in particular to a retractable wristband and mobile phone case. Background Technology

[0002] Mobile phones are now ubiquitous communication tools, and smartphones, in particular, combine the functions of a handheld computer and a mobile phone, offering a variety of features such as watching videos and listening to music. With the development and widespread use of mobile phones, phone cases designed to protect them are also constantly evolving. Currently, some phone cases include wrist straps, allowing users to easily wear them on their wrists while shopping or making calls, preventing them from slipping off.

[0003] Chinese utility model patent CN208874621U discloses a mobile phone case wristband, including a first band, a second band, and a movable connecting block. The movable connecting block includes a first connecting plate and a second connecting plate, with the second connecting plate covering the first connecting plate. Both the first and second bands have protruding plates with sliding grooves. The first connecting plate has a limiting platform matching the sliding groove, located on the opposite side of the first and second connecting plates. The first and second bands are connected to the first connecting plate via the sliding grooves and the limiting platform. This structure, by creating sliding grooves on the first and second bands, affects the structural strength of the two bands. Furthermore, the tensile length of the two bands depends on the length of the sliding grooves. If the groove length is too long, it will affect the aesthetics and integrity of the two bands in the stretched state, thus impacting the user experience. If the groove length is too short, the tensile distance will be too short, requiring excessive space when installing the mobile phone case or phone, thus placing significant requirements on the phone case or phone model. Utility Model Content

[0004] The problem this invention aims to solve is to provide a retractable wristband and phone case that has high space utilization while maintaining high overall structural strength.

[0005] To solve the above-mentioned technical problems, one of the technical solutions adopted by this utility model is: a telescopic wristband, including two wristband units and a connecting strap between the two wristband units; the connecting strap has ring buckles at both ends, and a sliding channel is formed between the two ring buckles for the wristband units to slide; the wristband unit includes a fixed end connected to the outside and a movable end slidably connected to the connecting strap, the ring buckle forms a through hole for the wristband unit to be inserted, and the movable end extends into the sliding channel through the through hole; a limiting protrusion is provided on the side of the movable end away from the fixed end, the limiting protrusion abuts against the ring buckle when the wristband unit is in a stretched state; the fixed end abuts against the ring buckle when the wristband unit is in a contracted state. The working principle of this utility model is: by adding ring buckles on both sides of the connecting strap and adding a sliding channel between the two ring buckles, it avoids drilling holes in the wristband units or connecting strap, thus avoiding affecting the overall structural strength; the movable end of the wristband unit can be fully stretched or fully contracted within the sliding channel, resulting in high space utilization.

[0006] As an improvement, the length of the sliding channel is twice the length of the movable end of a single wristband unit.

[0007] As an improvement, the connecting strip is provided with a groove, and two ring buckles are respectively provided at both ends of the groove, and the two ring buckles and the groove together form a sliding channel.

[0008] As an improvement, the fixed end includes a fixed seat and a fixing member disposed at the bottom of the fixed seat; the fixed seat is connected to one side of the movable end; the fixing member is connected to the outside, and the sliding groove forms an opening between the two annular buckles, the opening facing the same direction as the fixing member.

[0009] As an improvement, the wristband unit and the connecting band are both made of silicone, rubber or TPU; the movable end and the limiting protrusion are integrally formed; the connecting band and the ring buckle are integrally formed.

[0010] To solve the above-mentioned technical problems, the second technical solution adopted by this utility model is: a mobile phone case, including a housing and a retractable wristband disposed on the mobile phone case. The retractable wristband includes two wristband units and a connecting band disposed between the two wristband units. The connecting band has ring buckles at both ends, and a sliding channel is formed between the two ring buckles for the wristband units to slide. Each wristband unit includes a fixed end connected to the housing and a movable end slidably connected to the connecting band. The ring buckles form a through hole for the wristband unit to be inserted, and the movable end extends into the sliding channel through the through hole. A limiting protrusion is provided on the side of the movable end away from the fixed end. The limiting protrusion abuts against the ring buckle when the wristband unit is stretched; the fixed end abuts against the ring buckle when the wristband unit is retracted. The principle of this utility model is that by adding ring buckles on both sides of the connecting band and a sliding channel between the two ring buckles, drilling holes in the wristband units or connecting band avoids affecting the overall structural strength. The movable end of the wristband unit can be fully stretched or fully retracted within the sliding channel, resulting in high space utilization.

[0011] As an improvement, the length of the sliding channel is twice the length of the movable end of a single wristband unit.

[0012] As an improvement, the connecting strip is provided with a groove, and two ring buckles are respectively provided at both ends of the groove, and the two ring buckles and the groove together form a sliding channel.

[0013] As an improvement, the fixed end includes a fixed seat and a fixing member disposed at the bottom of the fixed seat; the fixed seat is connected to one side of the movable end; the fixing member is connected to the outside, and the sliding groove forms an opening between the two annular buckles, with both the opening and the fixing member facing the phone case.

[0014] As an improvement, the wristband unit and the connecting band are both made of silicone, rubber or TPU; the movable end and the limiting protrusion are integrally formed; the connecting band and the ring buckle are integrally formed.

[0015] The beneficial effects of this utility model are: by adding ring buckles on both sides of the connecting strap and adding a sliding channel between the two ring buckles, the drilling of holes in the wristband unit or connecting strap is avoided, thus resulting in high overall structural strength of this utility model; the movable end of the wristband unit can be fully stretched or fully retracted in the sliding channel, resulting in high space utilization. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the retractable wristband in its stretched state.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the back of the retractable wristband in its stretched state.

[0018] Figure 3This is an exploded view of the retractable wristband.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the back of the retractable wristband in its retracted state.

[0020] Figure 5 This is a frontal three-dimensional structural diagram of the retractable wristband in its retracted state.

[0021] Explanation of the labels in the diagram: 1. Wristband unit; 11. Movable end; 111. Limiting protrusion; 12. Fixed end; 121. Fixing seat; 122. Fixing component; 2. Connecting strap; 21. Ring buckle; 22. Slide groove. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] like Figures 1 to 5 As shown, a retractable wristband and phone case include a housing and a retractable wristband disposed on the housing. The retractable wristband includes two wristband units 1 and a connecting band 2 disposed between the two wristband units 1. Both ends of the connecting band 2 are provided with ring buckles 21. The connecting band 2 is made of silicone, rubber, or TPU, and the ring buckles 21 are integrally formed with the connecting band 2. A sliding channel for the wristband units 1 to slide is formed between the two ring buckles 21. To enhance the guiding effect of the sliding channel on the wristband units 1 during sliding, a groove 22 is provided on the connecting band 2. The two ring buckles 21 are respectively disposed at both ends of the groove 22 and communicate with the groove 22. The two ring buckles 21 and the groove 22 together form the sliding channel. The groove 22 forms an opening between the two ring buckles 21. To reduce the possibility of foreign objects entering the sliding channel, the opening faces the housing. The wristband unit 1 includes a fixed end 12 connected to the housing and a movable end 11 slidably connected to the connecting strap 2. One side of the movable end 11 is connected to the fixed end 12, and the other side of the movable end 11 is provided with a limiting protrusion 111. The ring buckle 21 forms a through hole for the wristband unit 1 to be inserted, and the movable end 11 extends into the sliding channel through the through hole. The wristband unit 1 is a silicone, rubber, or TPU component, and the movable end 11 and the limiting protrusion 111 are integrally formed. When the wristband unit 1 is in a stretched state, the movable end 11 slides in the sliding channel until the limiting protrusion 111 abuts against the side of the ring buckle 21 away from the fixed end 12, i.e., the limiting protrusion 111 cannot pass through the ring buckle 21 normally. When the wristband unit 1 is in a contracted state, the movable end 11 slides in the sliding channel until the fixed end 12 abuts against the side of the ring buckle 21 near the fixed end 12, i.e., the fixed end 12 cannot pass through the ring buckle 21 normally.

[0024] To fully utilize the length of the wristband unit 1 in its retracted state, the length of the sliding channel is twice the length of the movable end 11 of a single wristband unit 1. The sum of the lengths of the movable ends 11 of the two wristband units 1 corresponds exactly to the length of the sliding channel, meaning the length of the connecting strap 2 is equal to the sum of the lengths of the two movable ends 11. In the retracted state, the limiting protrusions 111 on the two wristband units 1 abut against each other within the sliding channel.

[0025] The fixed end 12 includes a fixed base 121 and a fixing member 122 disposed at the bottom of the fixed base 121. The fixed base 121 is connected to one side of the movable end 11, and the fixing member 122 is connected to the housing.

[0026] The working principle of this utility model is as follows: When the wristband unit 1 is stretched: the connecting strap 2 is pulled away from the housing. Since the fixed end 12 is fixed to the housing, and the distance between the two fixed ends 12 remains constant, the movable end 11 slides along the sliding channel. At this time, a wearing channel is formed between the two wristband units 1, the connecting strap 2, and the housing for the user to wear on their wrist, until the two limiting protrusions 111 abut against the two ring buckles 21 respectively. When the wristband unit 1 is contracted: the connecting strap 2 is pushed towards the housing, and the movable end 11 slides along the sliding channel. The two limiting protrusions 111 gradually approach each other within the sliding channel, and the connecting strap 2 gradually changes from a convex shape to a flat state, until the two limiting protrusions 111 abut against each other, and the fixed end 12 abuts against the ring buckle 21. This utility model has high overall structural strength and high space utilization.

Claims

1. A retractable wristband, comprising two wristband units and a connecting strap disposed between the two wristband units; characterized in that: The connecting band has ring buckles at both ends, and a sliding channel is formed between the two ring buckles for the wristband unit to slide. The wristband unit includes a fixed end connected to the outside and a movable end slidably connected to the connecting band. The ring buckle forms a through hole for the wristband unit to be inserted, and the movable end extends into the sliding channel through the through hole. A limiting protrusion is provided on the side of the movable end away from the fixed end. The limiting protrusion abuts against the ring buckle when the wristband unit is in a stretched state. The fixed end abuts against the ring buckle when the wristband unit is in a contracted state.

2. The retractable wristband according to claim 1, characterized in that: The length of the sliding channel is twice the length of the movable end of a single wristband unit.

3. The retractable wristband according to claim 1, characterized in that: The connecting strip is provided with a sliding groove, and two ring buckles are respectively provided at both ends of the sliding groove. The two ring buckles and the sliding groove together form a sliding channel.

4. The retractable wristband according to claim 3, characterized in that: The fixed end includes a fixed seat and a fixing member disposed at the bottom of the fixed seat; the fixed seat is connected to one side of the movable end; the fixing member is connected to the outside, and the sliding groove forms an opening between the two annular buckles, the opening facing the same direction as the fixing member.

5. The retractable wristband according to claim 1, characterized in that: The wristband unit and the connecting strap are both made of silicone, rubber or TPU; the movable end and the limiting protrusion are integrally formed; the connecting strap and the ring buckle are integrally formed.

6. A mobile phone case, comprising a housing and a retractable wrist strap disposed on the mobile phone case, the retractable wrist strap comprising two wrist strap units and a connecting strap disposed between the two wrist strap units; characterized in that: The connecting strap has ring buckles at both ends, and a sliding channel is formed between the two ring buckles for the wristband unit to slide. The wristband unit includes a fixed end connected to the housing and a movable end slidably connected to the connecting strap. The ring buckle forms a through hole for the wristband unit to be inserted, and the movable end extends into the sliding channel through the through hole. A limiting protrusion is provided on the side of the movable end away from the fixed end. The limiting protrusion abuts against the ring buckle when the wristband unit is in a stretched state. The fixed end abuts against the ring buckle when the wristband unit is in a contracted state.

7. The mobile phone case according to claim 6, characterized in that: The length of the sliding channel is twice the length of the movable end of a single wristband unit.

8. The mobile phone case according to claim 6, characterized in that: The connecting strip is provided with a sliding groove, and two ring buckles are respectively provided at both ends of the sliding groove. The two ring buckles and the sliding groove together form a sliding channel.

9. The mobile phone case according to claim 8, characterized in that: The fixed end includes a fixed base and a fixing member disposed at the bottom of the fixed base; the fixed base is connected to one side of the movable end; the fixing member is connected to the outside, and the sliding groove forms an opening between the two annular buckles, with both the opening and the fixing member facing the phone case.

10. The mobile phone case according to claim 6, characterized in that: The wristband unit and the connecting strap are both made of silicone, rubber or TPU; the movable end and the limiting protrusion are integrally formed; the connecting strap and the ring buckle are integrally formed.

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