Portable belt fixing device and sound box

Abstract

The utility model discloses a hand strap fixing device and a sound box, the hand strap fixing device comprises a casing, a hand strap and a locking assembly, the casing is provided with an accommodating space and a first guide hole communicated with the accommodating space; the hand strap is provided with a through hole and an annular groove, the through hole and the annular groove are coaxially arranged, and the through hole is located in the annular groove; the locking assembly comprises a pressing cap and a first fastener located in the containing space, the pressing cap comprises a top plate, a stud and an annular limiting plate, the stud and the annular limiting plate are both arranged on one face of the top plate in a protruding mode, the top plate is located on the side, away from the machine shell, of the hand strap, the annular limiting plate is inserted into the annular groove, and the stud penetrates through the penetrating hole and then is located in the first guide hole. The stud is provided with a first threaded hole, and the first fastener is installed in the first threaded hole in a threaded mode. According to the utility model, the stress position of the hand strap can be changed, the phenomenon that the perforation is deformed and appears under strong force is avoided, the hand strap is effectively prevented from being separated from the locking assembly, and the hand strap can be quickly restored after being pulled by strong force.

Description

Technical Field

[0001] The utility model relates to the technical field of sound box structures, in particular to a hand strap fixing device and a sound box. Background Art

[0002] There are many outdoor speakers with carrying straps on the market. The speakers can be carried around or fixed on outdoor items, such as outdoor bags, belts, and bicycle handlebars.

[0003] One end of the hand strap is conventionally fixed directly with a CD and a screw. Specifically, a hole is first processed on the hand strap, and then the CD is passed through the hole and the speaker casing and fixed with the internal screws. However, since the CD is a T-shaped structure and the hand strap is made of silicone, when the hand strap is subjected to a large tensile force, the hole of the hand strap will be deformed and exposed, which is very ugly and can easily cause the hand strap to separate from the CD or even break. After the force is removed, the hand strap cannot return to its original state, greatly affecting the user experience. Utility Model Content

[0004] The utility model aims to provide a hand strap fixing device and a speaker to solve the technical problem that in the existing speaker, the CD disc is of T-shaped structure and the hand strap is made of silicone material. When the hand strap is subjected to a large pulling force, the perforations of the hand strap will be deformed and exposed, which is very ugly and can easily separate the hand strap from the CD disc or even break the hand strap. Moreover, after the force is removed, the hand strap cannot return to its original state, which greatly affects the user experience.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a hand strap fixing device, comprising:

[0007] A housing having a receiving space and a first guide hole communicating with the receiving space;

[0008] A hand strap, provided with a perforation and an annular groove, wherein the perforation is coaxially arranged with the annular groove, and the perforation is located in the annular groove;

[0009] A locking assembly includes a pressing cap and a first fastener located in the accommodating space, the pressing cap includes a top plate, a stud and an annular limiting plate, the stud and the annular limiting plate are both protruded on one surface of the top plate, the top plate is located on the side of the hand strap away from the casing, the annular limiting plate is inserted into the annular groove, the stud is located in the first guide hole after passing through the through hole, the stud is provided with a first threaded hole, and the first fastener is threadedly mounted on the first threaded hole.

[0010] Furthermore, the pressing cap also includes a first anti-slip protrusion arranged in an annular shape, the first anti-slip protrusion is protruded on the top plate, the annular limiting plate is located inside the first anti-slip protrusion, and the first anti-slip protrusion is pressed against the outer wall of the hand strap.

[0011] Furthermore, the pressure cap also includes a second anti-slip protrusion arranged in an annular shape, the second anti-slip protrusion is protruded on a side of the annular limiting plate away from the top plate, and the second anti-slip protrusion is pressed against the bottom wall of the annular groove.

[0012] Furthermore, a limiting block is convexly provided on the inner side wall of the first guide hole, and a limiting groove is concavely provided on the outer side wall of the stud, and the limiting block is clamped in the limiting groove.

[0013] Furthermore, the hand strap includes a strap body and a positioning platform protruding from the strap body, the annular groove penetrates the strap body from a side of the strap body away from the positioning platform and extends toward the middle of the positioning platform, the through hole penetrates the strap body and the positioning platform in sequence, the housing is also provided with a positioning groove, the first guide hole penetrates and extends from the bottom wall of the positioning groove to the inner wall of the accommodating space, and the positioning platform is inserted into the positioning groove.

[0014] Furthermore, the hand strap fixing device also includes a buckle and a support, the hand strap also includes a block protruding from the belt body, the buckle is installed on the belt body through a beer-wrapping process, the block and the perforation are respectively located at both ends of the belt body, the support is installed on the casing and enclosed with the casing to form a slot, and the buckle and the block are both clamped in the slot.

[0015] Further, the buckle includes a top cover, a support rod, and a hook-shaped portion arranged toward the locking assembly, the top cover is connected to one end of the support rod, the hook-shaped portion is connected to the outer side wall of the other end of the support rod, and the clamping block is located on a side of the support rod away from the hook-shaped portion;

[0016] The card slot includes a storage cavity and a positioning cavity recessed on the inner side wall of the storage cavity, the top cover is connected to the belt body, the support rod and the card block are both located in the storage cavity, and the hook-shaped portion is located in the positioning cavity.

[0017] Furthermore, the hand strap fixing device also includes a second fastener located in the accommodating space, and the housing is also provided with a mounting groove and a second guide hole, the second guide hole extends from the bottom wall of the mounting groove to the inner wall of the accommodating space, one end of the support is installed in the mounting groove and enclosed with the inner wall of the mounting groove to form the card slot, and the other end is inserted into the second guide hole, the support is provided with a second threaded hole, and the second fastener is connected to the second threaded hole.

[0018] Furthermore, the hand strap is also provided with a first strip groove and a plurality of second strip grooves arranged at intervals, the second strip grooves are all arranged along the length direction of the belt body, the second strip grooves are located between the buckle and the annular groove, the first strip groove is located between the second strip groove and the annular groove, and each of the second strip grooves is vertically connected to the first strip groove.

[0019] The utility model also provides a sound box, comprising the hand strap fixing device as described above.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model adds an annular groove in the hand strap, and adds an annular limiting plate in the pressing cap. When the pressing cap passes through the hand strap and the casing and is threadedly connected with the first fastener in the accommodating space, the annular limiting plate in the pressing cap is inserted into the annular groove of the hand strap to further position the hand strap, which can change the force position of the hand strap, avoid deformation of the perforation and appearance when a lot of force is applied, effectively prevent the hand strap from being separated from the locking component, and can quickly restore to its original state after the hand strap is pulled hard, greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the hand strap fixing device provided in the embodiment of the utility model Figure 1 ;

[0023] Figure 2 for Figure 1 Exploded diagram of

[0024] Figure 3 A schematic diagram of the structure of the hand strap fixing device provided in the embodiment of the utility model Figure 2 ;

[0025] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0026] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0027] Figure 6 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0028] Figure 7 A schematic diagram of the structure of a pressure cap provided in an embodiment of the utility model;

[0029] Figure 8 A schematic diagram of the structure of a hand strap provided in an embodiment of the utility model;

[0030] Fig. 9 A schematic diagram of the structure in which the support provided in the embodiment of the utility model is fixed on the housing;

[0031] Fig.10 for Fig. 9 A partial enlarged schematic diagram of point D in the middle;

[0032] Fig.11 for Fig. 9 Exploded diagram of

[0033] Fig.12 for Fig.11 A partial enlarged schematic diagram of point E in the middle;

[0034] Fig.13 A schematic diagram of the structure of a buckle provided in an embodiment of the utility model;

[0035] Fig.14 A schematic structural diagram of a support provided in an embodiment of the utility model.

[0036] In the figure:

[0037] 10. Casing; 11. First guide hole; 111. First hole section; 112. Second hole section; 12. Stopper; 13. Positioning slot; 14. Mounting slot; 15. Second guide hole; 151. Third hole section; 152. Fourth hole section; 16. Housing; 161. Storage slot; 17. Positioning block; 18. Anti-fool block; 20. Hand strap; 21. Perforation; 22. Annular groove; 23. Strap body; 231. Embedding hole; 24. Positioning platform; 25. Block; 26. First strip groove; 27. Second strip groove; 28. Handle; 30. Locking assembly; 31, pressure cap; 311, top plate; 312, stud; 3121, first threaded hole; 3122, limiting groove; 313, annular limiting plate; 314, first anti-slip protrusion; 315, second anti-slip protrusion; 32, first fastener; 40, buckle; 41, top cover; 42, support rod; 43, hook-shaped portion; 50, support; 51, second threaded hole; 52, seat; 521, positioning channel; 522, anti-stupid groove; 53, limiting rod; 60, slot; 61, storage cavity; 62, positioning cavity; 70, second fastener. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0039] See also Figures 1 to 10As shown, the embodiment of the utility model discloses a hand strap fixing device, which is used in a speaker, and comprises a housing 10, a hand strap 20 and a locking assembly 30. The housing 10 is provided with a receiving space and a first guide hole 11 connected with the receiving space. The receiving space is located inside the housing 10, and the first guide hole 11 extends from the inner wall of the receiving space to the outer wall of the housing 10. Figure 1 The middle casing 10 is only a part. One end of the hand strap 20 is provided with a through hole 21 and an annular groove 22. The through hole 21 and the annular groove 22 are coaxially arranged. The through hole 21 is located in the annular groove 22. The annular groove 22 is arranged on the side of the hand strap 20 away from the casing 10. The hand strap 20 is made of silicone material.

[0040] The locking assembly 30 includes a pressing cap 31 and a first fastener 32 located in the accommodating space. The pressing cap 31 and the hand strap 20 are both located outside the accommodating space. The pressing cap 31 includes a top plate 311, a stud 312 and an annular limiting plate 313. The stud 312 and the annular limiting plate 313 are both convexly arranged on one side of the top plate 311, that is, the bottom. When the pressing cap 31 passes through the hand strap 20 and the housing 10, at this time, the top plate 311 is located on the side of the hand strap 20 away from the housing 10, the annular limiting plate 313 is inserted into the annular groove 22, and the stud 312 passes through the The hole 21 is located in the first guide hole 11, the stud 312 is provided with a first threaded hole 3121, and the first fastener 32 is threadedly installed on the first threaded hole 3121, so that the hand strap 20 is fixed to the housing 10 through the locking assembly 30. The cooperation between the annular limiting plate 313 and the annular groove 22 can change the force position of the hand strap 20, avoid the deformation of the perforation 21 and the appearance when a large force is applied, and effectively prevent the hand strap 20 from separating from the locking assembly 30. The pressure cap 31 is made of hard plastic ABS material, and the first fastener 32 is a screw.

[0041] In some embodiments, the pressure cap 31 also includes a first anti-slip protrusion 314 arranged in an annular shape, the first anti-slip protrusion 314 is convexly arranged on the top plate 311, the annular limiting plate 313 is located in the first anti-slip protrusion 314, the annular limiting plate 313 and the first anti-slip protrusion 314 are coaxially arranged, and the first anti-slip protrusion 314 is pressed against the outer wall of the top of the hand strap 20, so that the pressure cap 31 presses the hand strap 20 to increase the friction between the pressure cap 31 and the hand strap 20.

[0042] In some embodiments, the pressure cap 31 also includes a second anti-slip protrusion 315 arranged in an annular shape. The second anti-slip protrusion 315 is protruded on the side of the annular limiting plate 313 away from the top plate 311. The second anti-slip protrusion 315 is pressed against the bottom wall of the annular groove 22 to further increase the friction between the pressure cap 31 and the hand strap 20. The cross-sections of the first anti-slip protrusion 314 and the second anti-slip protrusion 315 are both inverted triangular structures.

[0043] In some embodiments, a limit block 12 is convexly provided on the inner wall of the first guide hole 11, and a limit groove 3122 is concavely provided on the outer wall of the stud 312 to cooperate with the limit block 12. The limit block 12 is clamped in the limit groove 3122 to avoid relative rotation between the fixed pressure cap 31 and the casing 10, thereby preventing the first fastener 32 from loosening after installation.

[0044] In this embodiment, the hand strap 20 includes a belt body 23 and a positioning platform 24 protruding from the belt body 23, the positioning platform 24 is arranged at the bottom of one end of the belt body 23, the annular groove 22 penetrates the belt body 23 from the side of the belt body 23 away from the positioning platform 24 and extends toward the middle of the positioning platform 24, the through hole 21 penetrates the belt body 23 and the positioning platform 24 in sequence, the housing 10 is further provided with a positioning groove 13, the first guide hole 11 penetrates and extends from the bottom wall of the positioning groove 13 to the inner wall of the accommodating space, and the positioning platform 24 is inserted into the positioning groove 13 to further fix the hand strap 20 on the housing 10.

[0045] The first guide hole 11 includes a first hole section 111 and a second hole section 112 which are connected in sequence from top to bottom. The inner diameter of the first hole section 111 is larger than the inner diameter of the second hole section 112. The first hole section 111 is connected to the positioning groove 13. The stud 312 is located in the first hole section 111 after passing through the through hole 21. One end of the first fastener 32 is located in the accommodating space, and the other end passes through the second hole section 112 and is threadedly connected to the first threaded hole 3121. Of course, the first guide hole 11 can also be other structural forms.

[0046] Please read further Figures 2 to 5 ,as well as Figures 8 to 14 In this embodiment, the hand strap fixing device also includes a buckle 40 and a support 50, both of which are located outside the accommodating space. The hand strap 20 also includes a block 25 protruding from the belt body 23, the block 25 is located at the bottom of the belt body 23, and the belt body 23 is also penetrated with an embedding hole 231. The buckle 40 is installed on the embedding hole 231 of the belt body 23 through a beer-covering process. The block 25 and the perforation 21 are respectively located at both ends of the belt body 23. The buckle 40 is located between the block 25 and the perforation 21 and is arranged close to the block 25. The support 50 is installed on the housing 10 and enclosed with the housing 10 to form a slot 60. The buckle 40 and the block 25 are both snapped into the slot 60. The block 25 can stably fix the buckle 40 in the slot 60, so that it is convenient for a person to hold the middle of the hand strap 20 to lift the speaker. The buckle 40 and the support 50 are both made of hard plastic ABS material.

[0047] The buckle 40 includes a top cover 41, a support rod 42 and a hook-shaped portion 43 arranged toward the locking assembly 30. The bottom of the top cover 41 is connected to one end of the support rod 42, the hook-shaped portion 43 is connected to the outer side wall of the other end of the support rod 42, and the block 25 is located on the side of the support rod 42 away from the hook-shaped portion 43; the slot 60 includes a receiving cavity 61 and a positioning cavity 62 recessed on the inner side wall of the receiving cavity 61. The top cover 41 and the belt body 23 are connected by injection molding in the mold through a sleeve beer process. The support rod 42 and the block 25 are both located in the receiving cavity 61. The outer diameter formed by the support rod 42 and the block 25 matches the inner diameter of the receiving cavity 61. The hook-shaped portion 43 is located in the positioning cavity 62 to prevent the buckle 40 from loosening from the slot 60.

[0048] The hand strap fixing device also includes a second fastener 70 located in the accommodating space. The housing 10 is also provided with a mounting groove 14 and a second guide hole 15. The second guide hole 15 is connected to the mounting groove 14. The second guide hole 15 extends from the bottom wall of the mounting groove 14 to the inner wall of the accommodating space. One end of the support 50 is installed in the mounting groove 14 and is enclosed with the inner wall of the mounting groove 14 to form the aforementioned card slot 60, and the other end is inserted into the second guide hole 15. The support 50 is provided with a second threaded hole 51. The second fastener 70 is connected to the second threaded hole 51 to fix the support 50 on the housing 10. The second fastener 70 is a screw.

[0049] The casing 10 includes a shell 16, a positioning block 17 and two anti-foolproof blocks 18. The accommodating space, the first guide hole 11, the positioning groove 13 and the second guide hole 15 are all arranged on the shell 16. The shell 16 is also provided with a receiving groove 161. The two clamping blocks 25 are both protruded on the inner side wall of the receiving groove 161. The positioning block 17 is protruded on the bottom wall of the receiving groove 161. The positioning block 17, the two anti-foolproof blocks 18 and the inner wall of the receiving groove 161 together enclose the aforementioned installation groove 14.

[0050] The support 50 includes a seat body 52 and a limiting rod 53 protruding from the bottom of the seat body 52. ​​A positioning channel 521 is penetrated through the seat body 52. ​​The positioning channel 521 extends from the top side of the seat body 52 to the bottom end of the seat body 52. ​​The outer wall of the seat body 52 is provided with two anti-idiot grooves 522. The seat body 52 is fixed in the installation groove 14. At this time, the two anti-idiot blocks 18 are respectively located in the two anti-idiot grooves 522. The positioning block 17 is inserted into the positioning channel 521. The positioning block 17 and the inner wall of the positioning channel 521 enclose the aforementioned slot 60. The limiting rod 53 is inserted into the second guide hole 15. The second threaded hole 51 is provided on the limiting rod 53.

[0051] The second guide hole 15 includes a third hole section 151 and a fourth hole section 152 which are connected in sequence from top to bottom. The inner diameter of the third hole section 151 is larger than the inner diameter of the fourth hole section 152. The third hole section 151 is connected to the mounting groove 14. The limiting rod 53 is located in the third hole section 151. One end of the second fastener 70 is located in the accommodating space, and the other end passes through the fourth hole section 152 and is threadedly connected to the second threaded hole 51. Of course, the second guide hole 15 can also be other structural forms.

[0052] In this embodiment, the hand strap 20 is further provided with a first strip groove 26 and a plurality of second strip grooves 27 arranged at intervals, the second strip grooves 27 are all arranged along the length direction of the belt body 23, the second strip grooves 27 are located between the buckle 40 and the annular groove 22, the second strip grooves 27 are arranged in the middle position of the belt body 23, the first strip groove 26 is located between the second strip groove 27 and the annular groove 22, each second strip groove 27 is vertically connected to the first strip groove 26, the first strip groove 26 and the second strip groove 27 are both arranged at the bottom of the belt body 23, the hand strap 20 is subjected to a glue reduction treatment, the hand strap 20 has a large deformation at the middle glue removal position, reducing the risk of the hand strap 20 being pulled out from the pressure cap 31, and can well fix the speaker on a bicycle handlebar or other similar places with relevant needs, avoiding the hand strap 20 from breaking.

[0053] In some embodiments, the hand strap 20 is further provided with a handle 28 , which is located beside one end of the strap body 23 and may be a part of the strap body 23 , so as to facilitate grasping by a person's hand when removing the buckle 40 from the slot 60 .

[0054] The utility model also discloses a sound box, comprising the hand strap fixing device as described above.

[0055] The assembly method of the hand strap fixing device comprises the following steps:

[0056] Step S101, installing the buckle 40, the buckle 40 and the hand strap 20 are injection molded together in the mold through the beer-injection process, and the support 50 is fixed to the housing 10 by the second fastener 70, the support 50 and the housing 10 are enclosed to form a slot 60, and then the buckle 40 after beer-injection and the block 25 on the hand strap 20 are clamped together in the slot 60;

[0057] Step S102, install the locking assembly 30, pass the pressure cap 31 through the hand strap 20 and the housing 10, and connect it with the first fastener 32 in the accommodating space. At this time, the annular limiting plate 313 in the pressure cap 31 is inserted into the annular groove 22 of the hand strap 20, and the pressure cap 31 and the hand strap 20 are pressed together by interference fit, and at the same time, the first anti-skid protrusion 314 and the second anti-skid protrusion 315 on the pressure cap 31 are respectively abutted against the belt body 23 and the bottom wall of the annular groove 22. After being tightened by the first fastener 32, since the middle part of the hand strap 20 is provided with the first strip groove 26 and the plurality of second strip grooves 27, the hand strap 20 is subjected to the glue reduction treatment, so that the force position of the hand strap 20 can be converted, reducing the risk of the hand strap 20 being pulled out from the pressure cap 31, and simultaneously allowing the hand strap 20 to have a larger deformation at the middle glue removal position, so that the speaker can be well fixed on the bicycle handlebar and other similar places with relevant needs.

[0058] In summary, the utility model adds an annular groove 22 in the hand strap 20, and adds an annular limiting plate 313 to the pressing cap 31. When the pressing cap 31 passes through the hand strap 20 and the housing 10 and is threadedly connected with the first fastener 32 in the accommodating space, the annular limiting plate 313 in the pressing cap 31 is inserted into the annular groove 22 of the hand strap 20, and the hand strap 20 is further positioned. The force position of the hand strap 20 can be changed, and the deformation and exposure of the perforation 21 when a large force is applied can be avoided, which effectively prevents the hand strap 20 from being separated from the locking assembly 30, and the hand strap 20 can be quickly restored to its original state after being pulled with a large force, which greatly improves the user experience.

[0059] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A hand strap fixing device, characterized in that: include: A housing having a receiving space and a first guide hole communicating with the receiving space; A hand strap, provided with a perforation and an annular groove, wherein the perforation is coaxially arranged with the annular groove, and the perforation is located in the annular groove; A locking assembly includes a pressing cap and a first fastener located in the accommodating space, the pressing cap includes a top plate, a stud and an annular limiting plate, the stud and the annular limiting plate are both protruded on one surface of the top plate, the top plate is located on the side of the hand strap away from the casing, the annular limiting plate is inserted into the annular groove, the stud is located in the first guide hole after passing through the through hole, the stud is provided with a first threaded hole, and the first fastener is threadedly mounted on the first threaded hole.

2. The hand strap fixing device according to claim 1, characterized in that: The pressing cap also includes a first anti-skid protrusion in an annular arrangement, the first anti-skid protrusion is protruded on the top plate, the annular limiting plate is located inside the first anti-skid protrusion, and the first anti-skid protrusion is pressed against the outer wall of the hand strap.

3. The hand strap fixing device according to claim 1, characterized in that: The pressing cap further comprises a second anti-skid protrusion arranged in an annular shape, wherein the second anti-skid protrusion is arranged on a side of the annular limiting plate away from the top plate, and the second anti-skid protrusion is pressed against the bottom wall of the annular groove.

4. The hand strap fixing device according to claim 1, characterized in that: A limiting block is convexly provided on the inner side wall of the first guide hole, and a limiting groove is concavely provided on the outer side wall of the stud, and the limiting block is clamped in the limiting groove.

5. The hand strap fixing device according to claim 1, characterized in that: The hand strap includes a strap body and a positioning platform protruding from the strap body, the annular groove penetrates the strap body from a side of the strap body away from the positioning platform and extends toward the middle of the positioning platform, the through hole penetrates the strap body and the positioning platform in sequence, the housing is also provided with a positioning groove, the first guide hole penetrates and extends from the bottom wall of the positioning groove to the inner wall of the accommodating space, and the positioning platform is inserted into the positioning groove.

6. The hand strap fixing device according to claim 5, characterized in that: The hand strap fixing device also includes a buckle and a support, and the hand strap also includes a block protruding from the belt body. The buckle is installed on the belt body through a beer-insertion process, and the block and the perforation are respectively located at both ends of the belt body. The support is installed on the casing and enclosed with the casing to form a slot, and the buckle and the block are both snapped into the slot.

7. The hand strap fixing device according to claim 6, characterized in that: The buckle includes a top cover, a support rod, and a hook-shaped portion disposed toward the locking assembly, the top cover is connected to one end of the support rod, the hook-shaped portion is connected to the outer side wall of the other end of the support rod, and the clamping block is located on a side of the support rod away from the hook-shaped portion; The card slot includes a storage cavity and a positioning cavity recessed on the inner side wall of the storage cavity, the top cover is connected to the belt body, the support rod and the card block are both located in the storage cavity, and the hook-shaped portion is located in the positioning cavity.

8. The hand strap fixing device according to claim 6, characterized in that: The hand strap fixing device also includes a second fastener located in the accommodating space. The housing is also provided with a mounting groove and a second guide hole. The second guide hole extends from the bottom wall of the mounting groove to the inner wall of the accommodating space. One end of the support is installed in the mounting groove and enclosed with the inner wall of the mounting groove to form the card slot, and the other end is inserted into the second guide hole. The support is provided with a second threaded hole, and the second fastener is connected to the second threaded hole.

9. The hand strap fixing device according to claim 6, characterized in that: The hand strap is also provided with a first strip groove and a plurality of second strip grooves arranged at intervals, wherein the second strip grooves are arranged along the length direction of the strap body, the second strip grooves are located between the buckle and the annular groove, the first strip groove is located between the second strip groove and the annular groove, and each of the second strip grooves is vertically connected to the first strip groove.

10. A sound box, characterized in that: It comprises a hand strap fixing device as described in any one of claims 1 to 9.

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