CN211479631U

CN211479631U - Braces fixing device and musical instrument braces

Info

Publication number: CN211479631U
Application number: CN201921589482.3U
Authority: CN
Inventors: 陆子天; 李垚毅; 周联峰
Original assignee: Guangzhou Lava Information Technology Co ltd
Current assignee: Guangzhou Lava Information Technology Co ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-09-11
Anticipated expiration: 2029-09-23

Abstract

The utility model relates to the technical field of musical instruments, and discloses a strap fixing device and a musical instrument strap, which comprise a shell, two groups of pressing components and two groups of clamping components, wherein the pressing components and the clamping components are adjacently arranged along the circumferential direction of the shell; the shell is provided with a hole site for the strap nail to pass through, the clamping component comprises clamping parts, and the two clamping parts respectively extend into the hole site and form a mounting site for fixing the strap nail between the two clamping parts; the clamping component and the pressing component are respectively connected in the shell in a sliding way through the elastic component, one end of the pressing component penetrates through the side wall of the shell, and the other end of the pressing component is abutted with the clamping components arranged on the two sides of the pressing component; the two groups of pressing components are pressed to slide into the shell, so that the pressing components push the clamping components positioned on the two sides of the pressing components to drive the clamping parts to slide out of the hole sites, and the braces nails can extend into the hole sites. Can ensure that the shoulder belt can not fall off under the condition of multi-angle rotation and pulling, thereby ensuring the reliability of connection between the shoulder belt and the musical instrument and being convenient to operate and use.

Description

Braces fixing device and musical instrument braces

Technical Field

The utility model relates to a musical instrument technical field especially relates to a braces fixing device and musical instrument braces.

Background

Many existing musical instruments need to be directly carried on the back of a player when performing stage performances, so that the players can perform the performances in the moving process, such as guitar, bass and the like. The strap nail is usually installed on the musical instrument in a mode of fixing straps on the musical instrument, taking the guitar as an example, in the actual use process, the strap nail is usually fixed at the bottom position of the guitar, the drilling positioning is carried out after the position is selected, finally the strap nail is screwed into the guitar by force through screws, in order to match with the strap nail, round holes are usually arranged on the straps used on the musical instrument, when the straps are needed to be installed, after the strap nail penetrates through the straps, the straps are fixedly connected with the guitar through the strap nail and the gravity of the guitar and the friction between the strap nail and the straps, and the strap fixing and the bearing effect of the guitar are realized. However, the strap fixed in this way requires the player to pay attention to the movement during use or work, and when the movement is violent or the movement range is large, the connection between the musical instrument and the shoulder strap is easily broken, which affects the playing quality and easily damages the musical instrument.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a braces fixing device and musical instrument braces, can ensure to shoulder and can not drop under the condition that the multi-angle rotation was dragged to guarantee to shoulder and the reliability of being connected between the musical instrument, and operation convenient to use.

In order to achieve the above object, the present invention provides a strap fixing device, which includes a housing, two sets of pressing components arranged oppositely and two sets of clamping components arranged oppositely, wherein the pressing components and the clamping components are arranged adjacently along the circumferential direction of the housing;

the shell is provided with a hole site for a strap nail to pass through, the clamping component comprises clamping parts, and the two clamping parts respectively extend into the hole site and form a mounting site for fixing the strap nail between the two clamping parts;

the clamping assembly and the pressing assembly are respectively connected in the shell in a sliding mode through elastic pieces, the first end portion of the pressing assembly penetrates through the side wall of the shell, and the second end portion of the pressing assembly is abutted to the clamping assemblies arranged on the two sides of the pressing assembly;

and pressing the two groups of pressing components to slide towards the shell, so that the pressing components push the clamping components positioned on the two sides of the pressing components to drive the clamping parts to slide out of the hole positions, and the braces nails can extend into the hole positions.

Optionally, the pressing assembly includes a pressing member and two pushing members, a first end of the pressing member penetrates through the side wall of the housing, and a second end of the pressing member is connected to the outer side wall of the hole site through the elastic member;

the two pushing pieces are fixedly connected to two sides of the second end portion of the pushing piece in a one-to-one correspondence mode, and the pushing pieces are arranged in the shell in a sliding mode and abut against the clamping assemblies located on the same side of the shell.

Optionally, the clamping assembly includes driving members respectively disposed at two sides of the clamping portion, the driving members are slidably disposed in the housing, and the driving members abut against the pushing member;

the clamping part is fixedly connected to the inner wall of the shell through the elastic piece.

Optionally, the opposite side surfaces of the two engaging portions are arc surfaces recessed inward, and the arc surfaces are used for attaching the outer contour surface of the back nail.

Optionally, two first positioning holes corresponding to the clamping portions one to one are formed in the side wall of the hole, and the clamping portions penetrate through the first positioning holes and extend into the hole.

Optionally, the housing includes a first housing and a second housing that are fastened to each other, and a cavity for positioning the engaging component and the pressing component is formed between the first housing and the second housing;

the outer side wall of the first shell is provided with two first grooves opposite to each other, the outer side wall of the second shell is provided with second grooves corresponding to the first grooves, and the first grooves and the second grooves are spliced with each other to form second positioning holes for the pressing piece to pass through.

Optionally, a first guide groove is formed in the first housing, a second guide groove corresponding to the first guide groove is formed in the second housing, and the pushing member is slidably positioned between the first guide groove and the second guide groove;

the driving piece is characterized in that a first guide rail is arranged in the first shell, a second guide rail corresponding to the first guide rail is arranged on the second shell, sliding grooves are formed in the two bottom surfaces of the driving piece respectively, and the first guide rail and the second guide rail are in positioning fit in the sliding grooves.

Optionally, the housing is of a circular structure, and the two sets of clamping assemblies and the two sets of pressing assemblies are distributed at equal intervals along the circumferential direction of the housing.

Optionally, four limiting portions corresponding to the driving members are arranged on the inner side wall of the casing, concave portions matched with the limiting portions are arranged on the driving members, and when the clamping portions completely slide out of the hole sites, the concave portions abut against the limiting portions to limit the hole sites.

In order to achieve the above object, the utility model also provides a musical instrument braces, it includes braces body and foretell braces fixing device, braces fixing device inlay establish connect in inside the braces body.

The embodiment of the utility model provides a braces fixing device and musical instrument braces compare with prior art, and its beneficial effect lies in:

the utility model discloses braces fixing device can be arranged in fixed the inlaying and locates the musical instrument braces, need install the braces in order to make things convenient for carrying on the back its at the time of on one's body random removal at the player, can press this braces fixing device's the subassembly of pressing and make it slide and compress the elastic component in the casing and drive block portion roll-off in order to promote the block subassembly, block portion also compresses rather than the elastic component that is connected from the in-process of roll-off gradually in the hole site, therefore, the hole site is opened completely and can convenience of customers directly establish the hole site cover on installing the braces nail on the musical instrument, guarantee the location to the braces nail through the hole site. Confirm that the braces nail is loosen after fixing a position in the hole site completely and press the subassembly, under the elastic action of elastic component, press the subassembly and can pop out according to former route, the block subassembly loses the promotion of pressing the subassembly this moment, in the block portion can kick-back to the hole site again under the elastic action of elastic component, the braces nail that has already been fixed a position in the hole site can further be spacing in the installation position between two block portions, obtain effectual spacing fixedly. The cooperation through between the block portion can realize the interlock to the braces nail to be convenient for the user can do any violent or great action of range at the in-process of using the musical instrument, improve the reliability that braces and musical instrument are connected, make the braces can bear bigger pulling force, allow to rotate and drag the braces from a plurality of angles, guarantee that the baldric can not drop from the musical instrument. Similarly, when the braces are dismantled, the clamping parts are separated from the hole positions only by pressing down the pressing assembly, so that the braces are locked by loosening the braces nails, and the braces nails can be directly removed from the hole positions. The strap fixing device is simple in structural design, convenient to produce and manufacture, convenient to use, low in cost and suitable for popularization and use.

Drawings

Fig. 1 is a schematic view of an overall structure of a strap fixing device according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic view of the overall structure of the strap fixing device according to the embodiment of the present invention at a second viewing angle;

fig. 3 is an exploded view of a harness fixing device according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a first housing of a harness strap fixing device according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a second housing of a harness fixing device according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a strap fixing device according to an embodiment of the present invention in a state where a pressing member is pressed;

fig. 7 is a schematic structural view of a harness fixing device according to an embodiment of the present invention in a state where a push-down unit is not pushed down.

In the figure, 1, a housing; 11. a first housing; 111. a first groove; 112. a first guide groove; 113. A first guide rail; 12. a second housing; 121. a second groove; 122. a second guide groove; 123. a second guide rail; 13. a cavity; 2. pressing the component; 21. a pressing piece; 22. a pusher member; 3. clamping the assembly; 31. a fastening part; 32. a drive member; 321. a chute; 322. a recess; 4. hole site; 41. a first positioning hole; 5. an installation position; 6. a first elastic member; 7. a second elastic member; 8. A back strap nail; 9. a second positioning hole; 10. a limiting part; 20. a second fixed column; 30. and a fourth fixing column.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 7, a strap fixing device according to a preferred embodiment of the present invention includes a housing 1, two sets of pressing components 2 disposed opposite to each other, and two sets of fastening components 3 disposed opposite to each other, wherein the pressing components 2 and the fastening components 3 are disposed adjacent to each other along a circumferential direction of the housing 1, a hole 4 for passing a strap nail 8 is disposed on the housing 1, the fastening components 3 include fastening portions 31, the two fastening portions 31 respectively extend into the hole 4 and form a mounting position 5 therebetween for fixing the strap nail 8, the fastening components 3 and the pressing components 2 are respectively slidably connected in the housing 1 through elastic members, a first end of the pressing component 2 penetrates through a sidewall of the housing 1, and a second end of the pressing component 2 abuts against the fastening components 3 disposed at two sides thereof, the two groups of pressing components 2 are pressed to slide towards the shell 1, so that the pressing components 2 push the clamping components 3 positioned at the two sides of the pressing components to drive the clamping parts 31 to slide out of the hole positions 4, and the strap nails 8 can extend into the hole positions 4. In this embodiment, the elastic member for driving the pushing member 2 to slide is taken as the first elastic member 6, and the elastic member for driving the engaging member 3 to slide is taken as the second elastic member 7.

Based on the above structure, when the strap fixing device is used, the strap needs to be provided with the through hole, and then the strap fixing device is embedded at the position of the strap where the through hole is arranged, so that the hole position 4 on the strap fixing device is aligned with the through hole. In the actual operation process, when the braces are required to be installed on the musical instrument, a user can simultaneously press two groups of pressing components 2 which are oppositely arranged and penetrate through the side wall of the shell 1, so that the two pressing components 2 can approach each other along the connecting line between the two pressing components, the first elastic piece 6 connected with the pressing components 2 starts to gradually accumulate elastic potential energy, in the process that the pressing components 2 slide in the shell 1 and gradually approach the hole site 4, the second end parts of the pressing components 2 abut against the clamping components 3, the two groups of pressing components 2 respectively abut against the two sides of the clamping components 3, so that stable pushing force can be provided for the clamping components 3, the clamping components 3 are pushed, the two pushing components can mutually separate along the connecting line between the two pushing components, the second elastic piece 7 connected with the clamping components 3 also starts to gradually accumulate elastic potential energy, and the clamping part 31 is further driven to gradually slide out of the hole site 4, the hole site 4 can be completely opened, and the strap nail 8 can be conveniently and directly inserted into the hole site 4 for positioning. After the strap nail 8 is positioned, the user loosens the pressing component 2, under the action of the elastic force of the first elastic piece 6, the pressing component 2 can automatically slide in the shell 1 according to the original path, the connecting lines between the pressing component 2 and the clamping component 3 are mutually far away, the clamping component 3 loses the pushing force provided by the pressing component 2 at the moment, under the action of the elastic force of the second elastic piece 7, the clamping component 3 also returns according to the original path, the connecting lines between the pressing component and the clamping component are mutually close, and the clamping part 31 can enter the hole position 4 again. The strap nail 8 which is already positioned in the hole site 4 can be further positioned in the mounting site 5, and the two opposite clamping parts 31 can provide reliable fixing function for the strap nail 8, so that the reliability of limiting the strap nail 8 in the hole site 4 is ensured. Therefore, when a user directly carries the musical instrument with the straps installed on the body, the user can do violent or very large body actions in the using process, the straps and the musical instrument cannot fall off, the fixing device can ensure that the musical instrument bears larger pulling force of the straps, the musical instrument is allowed to rotate and pull at multiple angles, and the connecting quality between the straps and the musical instrument is improved. The strap fixing device is simple in structural design, reliable in effect, convenient to operate, low in production and manufacturing cost and suitable for popularization and use.

Wherein, the pressing component 2 includes a pressing component 21 and two pushing components 22, the first end of the pressing component 21 penetrates through the side wall of the casing 1, the second end of the pressing component 21 is connected with the outer side wall of the hole site 4 through the first elastic component 6, the first end of the pressing component 21 is pushed to gradually enter the casing 1, the second end of the pressing component 21 moves relative to the outer side wall of the hole site 4 through the first elastic component 6, so that the first elastic component 6 can effectively accumulate elastic potential energy, the two pushing components 22 are fixedly connected to the two sides of the second end of the pressing component 21 one by one, the pushing components 22 can be slidably arranged in the casing 1 and abut against the clamping components 3 on the same side, the two pushing components 22 respectively push the clamping components 3 on the two sides, and the first elastic component 6 is positioned between the two pushing components 22, so when a user pushes the pressing component 21, smooth sliding of the pusher 22 within the housing 1 can be ensured. The clamping assembly 3 comprises driving members 32 respectively arranged on two sides of the clamping portion 31, the driving members 32 are located on the outer side of the hole site 4, and can slide in the casing 1, the driving members 32 and the pushing members 22 abut against each other, the pushing members 22 push the driving members 32 to slide in the casing 1, the driving members 32 can drive the clamping portion 31 to slide out of or stretch into the hole site 4, the clamping portion 31 is fixedly connected to the inner wall of the casing 1 through the second elastic members 7, the clamping portion 31 slides out of or stretches into the hole site 4, the second elastic members 7 can accumulate or release elastic force between the side wall of the hole site 4 and the inner wall of the casing 1, and stable and reliable operation of the clamping members is ensured.

Optionally, the opposite side surfaces of the two engaging portions 31 are arc surfaces recessed inward, the arc surfaces are used for adhering to the outer contour surface of the strap nail 8, an annular recessed position is circumferentially arranged on the outer side surface of the strap nail 8, the engaging portions 31 are positioned and clamped and matched at the position of the recessed position, the arc surfaces can effectively increase the contact area between the engaging portions 31 and the strap nail 8, perfect matching between the mounting position 5 formed between the engaging portions 31 and the strap nail 8 is ensured, and the quality of clamping and fixing the strap nail 8 by the engaging portions 31 is improved. Be equipped with two first locating hole 41 with each block portion 31 one-to-one on the lateral wall of hole site 4, block portion 31 passes first locating hole 41 and stretches into in the hole site 4, be convenient for smooth and easy roll-off of block portion 31 or slip into in the hole site 4, and first locating hole 41 can also effectually guarantee spacing to block portion 31, prevent that block portion 31 from appearing the phenomenon of rocking in casing 1, the movement track of avoiding block portion 31 breaks away from the specified direction and leads to the dead condition of card to appear in casing 1 inside, the quality and the reliability of the device work of improvement.

Further, the housing 1 includes a first housing 111 and a second housing 121 that are fastened to each other, a cavity 13 for positioning the engaging component 3 and the pressing component 2 is formed between the first housing 111 and the second housing 121, the cavity 13 can provide a sufficient installation space for the engaging component 3 and the pressing component 2 inside, and the first housing 111 and the second housing 121 can protect the engaging component 3, the pressing component 2 and other parts and facilitate the embedded installation in the strap. The outer side wall of the first shell 111 is provided with two first grooves 111 opposite to each other, the outer side wall of the second shell 121 is provided with second grooves 121 corresponding to the first grooves 111, the first grooves 111 and the second grooves 121 are spliced with each other to form second positioning holes 9 for the pressing piece 21 to pass through, the first end portion of the pressing piece 21 extends into the second positioning holes 9, the pressing piece 21 can slide along the circumferential direction of the second positioning holes 9 under the pushing of a user, the second positioning holes 9 can position the pressing piece 21, the positioning and mounting of the pressing piece 21 are facilitated, the pressing piece 21 can be prevented from sliding in the sliding process, the first elastic piece 6 is prevented from being damaged, and the service life of the whole device is prolonged. It should be noted that the casing 1 is selected to be of a circular structure, and the two sets of engaging assemblies 3 and the two sets of pressing assemblies 2 are distributed at equal intervals along the circumferential direction of the casing 1, so that the appearance of the whole installation device is improved on the premise that the pressing member 21 can effectively drive the engaging assemblies 3, and the casing 1 is conveniently and integrally embedded into the strap.

Optionally, a first guide groove 112 is formed in the first housing 111, a second guide groove 122 corresponding to the first guide groove 112 is formed in the second housing 121, the pushing member 22 is slidably positioned between the first guide groove 112 and the second guide groove 122, the pushing member 22 is a pushing plate, the pushing members 22 disposed on two sides of each pressing member 21 are arranged in parallel, one side of each pushing member 22 is positioned in the first guide groove 112, one side of each pushing member 22 is positioned in the second guide groove 122, one end of each pushing member 22 is fixedly connected with the corresponding pressing member 21, the other end of each pushing member 22 is used for abutting against the driving member 32, and the first guide groove 112 and the second guide groove 122 can effectively limit the sliding range and the sliding track of the pushing member 22, so as to ensure smooth movement of the pushing member 22. The first guide rail 113 is arranged in the first housing 111, the second guide rail 123 corresponding to the first guide rail 113 is arranged on the second housing 121, the sliding grooves 321 are respectively arranged on two bottom surfaces of the driving member 32, the sliding grooves 321 on the driving member 32 arranged on two sides of each clamping portion 31 are arranged in parallel, and the first guide rail 113 and the second guide rail 123 are positioned and matched in the sliding grooves 321, so that a direction can be provided for the driving member 32 to slide, and the reliability of the driving member 32 to slide is ensured.

Preferably, four limit portions 10 corresponding to the driving members 32 are disposed on the inner side wall of the housing 1, a concave portion 322 is disposed on the driving member 32 and is engaged with the limit portions 10, when the engaging portion 31 completely slides out of the hole 4, the concave portion 322 abuts against the limit portions 10 for limiting, when a user presses the pressing member 21, the pushing member 22 can push the driving member 32 to gradually slide toward the inside of the housing 1, when the engaging portion 31 completely slides out of the first positioning hole 41 on the side wall of the hole 4 to facilitate the insertion of the strap nail 8, the concave portion 322 at the tail portion of the driving member 32 is blocked and engaged with the limit portions 10, the limit portions 10 limit the driving member 32 so that the driving member 32 cannot continuously slide toward the housing 1, thereby effectively avoiding the excessive movement of the pressing member 21, and preventing the user from mistakenly pressing the pressing member 21 completely into the second positioning hole 9 due to excessive force application, the phenomenon that the pressing piece 21 cannot rebound smoothly due to the fact that the pressing piece 21 is blocked with the inner wall of the shell 1 is avoided, the working reliability of the fixing device is effectively guaranteed, and the service life of the fixing device is prolonged.

In addition, in order to ensure that the first elastic element 6 and the second elastic element 7 can stretch and retract according to a specified direction, a first fixing column is arranged at the second end of the pressing element 21 at the inner position of the second housing 121, a second fixing column 20 arranged opposite to the first fixing column is fixedly arranged on the outer side wall of the hole site 4, the first elastic element 6 is sleeved between the first fixing column and the second fixing column 20, and the first fixing column and the second fixing column 20 effectively limit the stretching direction of the first elastic element 6; the afterbody at block portion 31 is provided with the third fixed column, position department for the third fixed column on the inside wall of casing 1 is provided with fourth fixed column 30, second elastic component 7 cover is established between third fixed column and fourth fixed column 30, the flexible direction of effectual injecing second elastic component 7, first fixed column, second fixed column 20, first elastic component 6 and the steady motion of second elastic component 7 in the assigned direction can be guaranteed to third fixed column and fourth fixed column 30, prevent that buckling or the phenomenon of rocking from appearing in first elastic component 6 and second elastic component 7, guarantee the reliability of whole device work. In the present embodiment, the first elastic member 6 and the second elastic member 7 are both spring members, but in other embodiments, the types of the first elastic member 6 and the second elastic member 7 are not limited by the present embodiment, and can be selected appropriately according to actual needs.

The embodiment of the utility model also provides a musical instrument braces, it includes braces body and foretell braces fixing device, braces fixing device inlays to establish and connects inside the braces body.

To sum up, the embodiment of the utility model provides a braces fixing device can be arranged in fixed the inlaying musical instrument braces, need install the braces in order to make things convenient for carrying on the back its body when removing at will at the player, can press this braces fixing device press subassembly 2 make it slide and compress the elastic component and drive block portion 31 from hole site 4 roll-off in order to promote block subassembly 3 in casing 1, block portion 31 also compresses rather than the elastic component that is connected from the in-process of roll-off gradually in hole site 4, therefore, hole site 4 is opened completely and can be made things convenient for the user to establish 4 covers of hole site on installing the braces nail 8 on the musical instrument, guarantee the location to braces nail 8 through hole site 4. After the strap nail 8 is completely positioned in the hole site 4, the pressing component 2 is loosened, the pressing component 2 can be popped out according to the original path under the action of the elastic force of the elastic piece, the clamping component 3 loses the pushing of the pressing component 2 at the moment, the clamping parts 31 can rebound to the hole site 4 again under the action of the elastic force of the elastic piece, the positioned strap nail 8 in the hole site 4 can be further limited in the installation position 5 between the two clamping parts 31, and effective limiting fixation is obtained. The engagement of the strap nails 8 can be realized through the cooperation between the clamping parts 31, so that the user can do any violent or large-amplitude actions in the process of using the musical instrument, the reliability of connection between the strap and the musical instrument is improved, the strap can bear large pulling force, the strap is allowed to rotate and pull from multiple angles, and the shoulder strap is ensured not to fall off from the musical instrument. Similarly, when the strap is removed, the pressing component 2 is pressed down to make the clamping part 31 be separated from the hole site 4, so as to loosen the locking of the strap nail 8, and the strap nail 8 is directly moved out of the hole site 4. The strap fixing device is simple in structural design, convenient to produce and manufacture, convenient to use, low in cost and suitable for popularization and use.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A strap fixing device is characterized by comprising a shell, two groups of pressing components arranged oppositely and two groups of clamping components arranged oppositely, wherein the pressing components and the clamping components are arranged adjacently along the circumferential direction of the shell;

2. The strap fixing apparatus of claim 1 wherein the pressing assembly comprises a pressing member and two pushing members, a first end of the pressing member extends out of the side wall of the housing, and a second end of the pressing member is connected to the outer side wall of the hole site through the elastic member;

3. The strap fixing device of claim 2 wherein the engaging assembly comprises driving members disposed on opposite sides of the engaging portion, the driving members being slidably disposed in the housing and abutting against the pushing member;

4. The strap fixing device according to claim 3, wherein the side surfaces of the two engaging portions that face each other are arcuate surfaces that are recessed inward, and the arcuate surfaces are configured to be fitted to outer contour surfaces of the strap nail.

5. The harness fixing device according to any one of claims 1 to 4 wherein two first positioning holes corresponding to the respective engaging portions are provided on the side wall of the hole site, and the engaging portions extend into the hole site through the first positioning holes.

6. The harness fixation device of claim 3 wherein the housing comprises a first housing and a second housing that snap-fit to each other, the first housing and the second housing defining a cavity therebetween for positioning the snap assembly and the push assembly;

7. The strap retainer of claim 6 wherein a first guide slot is provided in the first housing, a second guide slot corresponding to the first guide slot is provided in the second housing, and the pusher is slidably positioned between the first guide slot and the second guide slot;

8. The harness fixing device as claimed in claim 6 or 7 wherein the housing is of circular configuration, and the two sets of engaging members and the two sets of pressing members are equally spaced along the circumference of the housing.

9. The strap fixing device of claim 3 wherein four limiting portions corresponding to the driving members are disposed on the inner sidewall of the housing, a recess is disposed on the driving member and is engaged with the limiting portions, and when the engaging portion slides out of the hole, the recess abuts against the limiting portions to limit the strap.

10. An instrument harness comprising a harness body and the harness fixing device as claimed in any one of claims 1 to 9, wherein the harness fixing device is connected to the inside of the harness body by being embedded therein.