Quick-mounting structure and chest strap support

Abstract

The utility model discloses a quick-assembly structure and a chest strap support, the quick-assembly structure comprises a fixed seat and a mounting seat, the fixed seat comprises a first connecting part, and a chute with a mounting interface is formed on the side wall of the first connecting part; the mounting seat is used for being matched with the fixing seat, the mounting seat is provided with a second connecting part, and a sliding block is arranged on the side wall of the second connecting part; wherein the first connecting part is used for being matched with the second connecting part; after the first connecting part is matched with the second connecting part, the sliding block is located at the mounting interface, and after the fixed seat is rotated, the sliding block enters the sliding groove along with rotation; according to the quick-mounting structure, automatic alignment of the fixing base and the mounting base is achieved, mounting alignment is convenient, and the accuracy of the quick-mounting structure in the mounting process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of support systems, and in particular to a quick-release structure and a chest strap support. Background Technology

[0002] A chest strap bracket is a product used for cycling photography. It is worn on the body via straps, and the straps have mounting interfaces at the chest area for connecting action cameras or mobile phones. Most chest strap brackets on the market allow for quick and easy detachment of cameras or mobile phones by using camera mounts and mounting interfaces to secure them in place.

[0003] Currently available chest strap mounts, which only use a rotating quick-release mechanism to fix the camera mount, while allowing for quick-release use, require users to manually align the interface during installation, which can easily lead to alignment errors. During cycling photography, users often need to operate with one hand, and with existing products on the market, there is a risk of the camera being incorrectly installed on the chest strap mount. Utility Model Content

[0004] The main purpose of this invention is to propose a quick-release structure and a chest strap bracket, which aims to solve the problem of inconvenient installation and alignment of the quick-release structure in the existing chest strap bracket.

[0005] To achieve the above objectives, the quick-assembly structure proposed in this utility model includes:

[0006] A mounting base, the mounting base including a first connecting part, the side wall of the first connecting part forming a groove with an installation interface;

[0007] Mounting base, the mounting base is used to cooperate with the fixed base, the mounting base is provided with a second connecting part, and the side wall of the second connecting part is provided with a slider;

[0008] The first connecting part is used to cooperate with the second connecting part;

[0009] When the first connecting part and the second connecting part are engaged, the slider is located at the mounting interface. After the fixed base is rotated, the slider rotates and enters the groove.

[0010] Optionally, the quick-release structure further includes a button assembly, which includes an elastic element and a button, the button including a pressing part and a blocking part;

[0011] The button is retractably mounted on the fixed base. The elastic element is used to push the button so that the pressing part is kept extended out of the fixed base. The mounting base is provided with a positioning groove. When the fixed base rotates to a preset position relative to the mounting base, the pressing part and the positioning groove are aligned. The elastic element pushes the blocking part into the positioning groove.

[0012] Alternatively, the button can be retractably mounted on the mounting base, and the elastic element is used to push the button so that the pressing part of the button remains extended out of the mounting base; the positioning groove is provided on the fixed base, and when the fixed base rotates relative to the mounting base to the preset position, the blocking part and the positioning groove align, and the elastic element pushes the pressing part into the positioning groove.

[0013] Optionally, at least one of the mounting base and the fixing base further includes a first magnet, and the other includes a material that can be attracted by the magnetic force of the first magnet or a second magnet.

[0014] Optionally, the end face of the mounting base is provided with at least two arc-shaped protrusions, and a gap is provided between the inner walls of the arc-shaped protrusions. The slider protrudes from the outer wall of the arc-shaped protrusions in the circumferential direction, and any two adjacent arc-shaped protrusions are spaced apart to form a mounting opening.

[0015] The end face of the fixing seat is provided with a fixing groove, and the inner wall of the fixing groove protrudes circumferentially to form a fixing buckle. The fixing buckle and the bottom of the fixing groove form the sliding groove.

[0016] When the first connecting part and the second connecting part are engaged in a concave-convex manner, the slider is located at the mounting interface and the blocking part is located at the mounting opening. Then, the fixed seat is rotated, and the slider follows the rotation and enters the sliding groove. At the same time, the blocking part enters the gap and is pushed by the inner sidewall of the arc-shaped protrusion to overcome the elastic pressure and retract. When the fixed seat is rotated to the position where the blocking part and the positioning groove are directly opposite each other, the elastic element pushes the blocking part into the positioning groove.

[0017] Optionally, the side of the blocking part that enters the gap has a first inclined guide surface, or the inner sidewall of the arc-shaped protrusion at the mounting opening is a second inclined guide surface.

[0018] Optionally, the button assembly further includes a guide groove disposed within the slide, the groove wall of which is provided with a guide rail, and the button is used to move along the guide rail.

[0019] Optionally, the number of button assemblies is two, and the two button assemblies are symmetrically arranged along the axis of the fixed base.

[0020] Optionally, the fixing base further includes a fixing plate, which is disposed in the slide groove and abuts against the groove wall.

[0021] In addition, this utility model also provides a chest strap support, which includes the above-mentioned quick-release structure, and further includes:

[0022] A chest strap, comprising interconnected shoulder straps and a waist belt;

[0023] Insert, one end of the shoulder strap and the waist belt is connected to the insert;

[0024] A fixing plate is provided, the other end of the shoulder strap and the waist belt are connected to the fixing plate, the mounting base is mounted on the fixing plate, and the connection between the mounting base and the fixing plate forms an insertion interface for the insert to be inserted.

[0025] In one embodiment, the insert includes a connecting part and a plug-in part that are connected to each other. One end of the shoulder strap and the waist belt are connected to the connecting part. The plug-in part is used to insert into the plug-in interface. A spring hook is provided at the end of the plug-in part away from the connecting part. A deformable arm is provided at the position of the spring hook corresponding to the position of the mounting base.

[0026] In this invention, the quick-installation structure includes a fixed base and a mounting base. The mounting base is installed on the chest strap support. The fixed base includes a first connecting part, the side wall of which forms a groove with an installation interface. The mounting base has a second connecting part, the side wall of which is provided with a slider. The mounting base is used to cooperate with the fixed base. During use, the user picks up the fixed base and moves it towards the fixed base installed on the chest strap support, causing the first and second connecting parts to engage. During this engagement, the slider is located at the opening of the groove and directly facing it. When the fixed base rotates relative to the mounting base, the slider enters the groove through the installation interface. The slider is blocked by the side wall of the groove and will not fall off, thus completing the installation between the fixed base and the mounting base. When it is necessary to remove the fixed base from the mounting base, the fixed base is rotated in the opposite direction to disengage the fixed base and the mounting base. This embodiment of the quick-installation structure enables rapid installation and removal between the fixed base and the mounting base. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of an embodiment of the quick-assembly structure provided by this utility model;

[0029] Figure 2 A schematic diagram of the structure of the button provided by this utility model;

[0030] Figure 3 A schematic diagram of the structure of an embodiment of the mounting base provided by this utility model;

[0031] Figure 4 A schematic diagram of the structure of an embodiment of the mounting base and fixing base provided by this utility model in cooperation;

[0032] Figure 5 A schematic diagram of another embodiment of the mounting base and fixing base provided by this utility model;

[0033] Figures 6 to 8 A schematic diagram showing the disassembled operation of the mounting base and fixing base provided by this utility model;

[0034] Figure 9 A three-dimensional structural diagram of an embodiment of the chest strap support provided by this utility model;

[0035] Figure 10 A front view schematic diagram of an embodiment of the chest strap support provided by this utility model;

[0036] Figure 11 for Figure 10 A magnified view of a portion of point A in the middle.

[0037] Explanation of icon numbers:

[0038] 100. Quick-release structure; 1. Fixing base; 11. First connecting part; 111. Slide groove; 112. Mounting interface; 12. Fixing groove; 121. Fixing buckle; 13. Fixing plate; 2. Mounting base; 21. Second connecting part; 211. Slider; 212. Arc-shaped protrusion; 213. Gap; 214. Mounting port; 23. Positioning groove; 3. Button assembly; 31. Elastic element; 32. Button; 321. Pressing part; 322. Blocking part; 22. Positioning groove; 23. Guide groove; 231. Guide rail; 4. First magnet; 5. First inclined guide surface; 6. Second inclined guide surface; 200. Chest strap bracket; 7. Chest strap; 71. Back strap; 72. Waist belt; 8. Insert; 9. Fixing piece; 81. Connecting part; 82. Insertion part; 821. Spring hook; 32. Deformable arm.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] Please refer to Figure 1 This utility model proposes a quick-installation structure 100, which includes a fixed base 1 and a mounting base 2. The fixed base 1 includes a first connecting part 11, and the side wall of the first connecting part 11 forms a groove 111 with a mounting interface 112. The mounting base 2 is used to cooperate with the fixed base 1, and the mounting base 2 is provided with a second connecting part 21, and the side wall of the second connecting part 21 is provided with a slider 211. The first connecting part 11 is used to cooperate with the second connecting part 21. When the first connecting part 11 and the second connecting part 21 are cooperated, the slider 211 is located at the mounting interface 112. After rotating the fixed base 1, the slider 211 rotates and enters the groove 111.

[0044] In this embodiment, the quick-installation structure 100 is used for quick installation onto the chest strap support 200. The quick-installation structure 100 includes a fixing seat 1 and a mounting seat 2. The mounting seat 2 is installed on the chest strap support 200. The fixing seat 1 includes a first connecting portion 11, and the side wall of the first connecting portion 11 forms a sliding groove 111. The sliding groove 111 has an installation interface 112. The mounting seat 2 has a second connecting portion 21, and the side wall of the second connecting portion 21 is provided with a slider 211. The mounting seat 2 is used to cooperate with the fixing seat 1. During use, the user picks up the fixing seat 1 and moves it closer to the fixing seat 1 installed on the chest strap support 200, so that the first connecting portion 11 and the second connecting portion 21 cooperate. During the assembly process, the slider 211 is located at the opening of the slide groove 111 and directly faces the opening of the slide groove 111. When the fixed seat 1 rotates relative to the mounting seat 2, the slider 211 enters the slide groove 111 through the mounting interface 112. The slider 211 is blocked by the side wall of the slide groove 111 and will not fall off, thus completing the installation between the fixed seat 1 and the mounting seat 2. When it is necessary to remove the fixed seat 1 from the mounting seat 2, the fixed seat 1 is rotated in the opposite direction, thereby separating the fixed seat 1 from the mounting seat 2. The quick-installation structure 100 of this embodiment realizes the quick installation and removal between the fixed seat 1 and the mounting seat 2.

[0045] Based on the above embodiments, the quick-installation structure 100 also includes a button assembly 3. The button assembly 3 includes an elastic element 31 and a button 32. The button 32 includes a pressing part 321 and a blocking part 322. The button 32 is telescopically mounted on the fixed base 1. The elastic element 31 is used to push the button 32 so that the pressing part 321 is kept extended out of the fixed base 1. The mounting base 2 is provided with a positioning groove 2223. When the fixed base 1 rotates relative to the mounting base 2 to a preset position, the pressing part 321 and the positioning groove 2223 face each other, and the elastic element 31 pushes the blocking part 322 into the positioning groove 2223.

[0046] In this embodiment, please refer to Figure 1 and Figure 2The quick-release structure 100 also includes a button assembly 3, which includes an elastic element 31 and a button 32. The button 32 includes a pressing part 321 and a blocking part 322. The elastic element 31 can be a spring, located within a groove 111 of the fixed base 1. The button 32 is telescopically mounted on the fixed base 1, meaning it can move relative to the fixed base 1. As shown in the figure, in this embodiment, the pressing part 321 is rotated and vertically offset. A step is formed at the adjacent positions of the pressing part 321 and the blocking part 322. The elastic element 31 abuts against the step, causing it to push against the button 32, thus keeping the pressing part 321 extended outward from the fixed base 1. The mounting base 2 is provided with a positioning groove 2223, into which the blocking part 322 can extend. Specifically, when the fixed seat 1 rotates relative to the mounting seat 2 to a preset position, which is the position where the blocking part 322 is directly opposite the positioning groove 2223, the elastic member 31 pushes the blocking part 322 into the positioning groove 2223 of the mounting seat 2 using its own elastic force. At this time, the blocking part 322 is blocked by the groove wall of the positioning groove 2223, thus preventing the fixed seat 1 from rotating relative to the mounting seat 2, thereby achieving the purpose of self-locking after the fixed seat 1 and the mounting seat 2 are connected. When it is necessary to remove the fixed seat 1 from the mounting seat 2, the user can squeeze the pressing part 321 to push the blocking part 322 out of the positioning groove 2223, and rotate the fixed seat 1 in the opposite direction to make the slider 211 return to the mounting interface 112, thus completing the removal of the fixed seat 1 and the mounting seat 2.

[0047] In other embodiments, the button assembly 3 can also be disposed on the mounting base 2, and the fixed base 1 can be provided with a positioning groove 2223. Specifically, the button assembly 3 includes an elastic element 31 and a button 32. The button 32 includes a pressing part 321 and a blocking part 322. The button 32 is telescopically mounted on the mounting base 2. The elastic element 31 is used to push the button 32, so that the pressing part 321 of the button 32 remains extended out of the mounting base 2. The positioning groove 2223 is disposed on the fixed base 1. When the fixed base 1 rotates relative to the mounting base 2 to a preset position, the blocking part 322 and the positioning groove 2223 align, and the elastic element 31 pushes the pressing part 321 into the positioning groove 2223. A cavity (not shown) can be provided inside the mounting base 2. The elastic element 31 can be disposed in the cavity of the mounting base 2. The button 32 can pass through the mounting base 2 and extend into the cavity of the fixed base 1 to abut against the elastic element 31, so that the button 32 can be telescopically mounted on the mounting base 2. When the elastic element 31 pushes the button 32, the pressing part 321 of the button 32 remains extended out of the mounting base 2. When the fixed base 1 rotates relative to the mounting base 2 to a preset position, which is the position where the blocking part 322 is directly opposite the positioning groove 2223, the elastic element 31 pushes the blocking part 322 into the positioning groove 2223 of the fixed base 1 by its own elastic force, so that the fixed base 1 cannot rotate relative to the mounting base 2, thereby achieving the purpose of self-locking after the fixed base 1 and the mounting base 2 are connected.

[0048] In one embodiment, please refer to Figures 3 to 5 At least one of the mounting base 2 and the fixing base 1 further includes a first magnet 4, and the other includes a material or a second magnet that can be attracted by the magnetic force of the first magnet 4. In this embodiment, the first magnet 4 can be provided inside the fixing base 1, and the material or second magnet attracted by the magnetic force of the first magnet 4 on the fixing base 1 can be provided on the mounting base 2. Alternatively, the first magnet 4 can be provided inside the mounting base 2, and the material or second magnet attracted by the magnetic force of the first magnet 4 on the fixing base 1 can be provided on the fixing base 1, so that the mounting base 2 and the fixing base 1 can attract each other magnetically, achieving the effect of automatic pre-installation positioning.

[0049] In one embodiment, the end face of the mounting base 2 is provided with at least two arc-shaped protrusions 212, and a gap 213 is provided between the inner walls of the arc-shaped protrusions 212. A slider 211 protrudes from the outer wall of the arc-shaped protrusions 212 in the circumferential direction, and a notch is formed between any two adjacent arc-shaped protrusions 212 as a mounting opening 214. The end face of the fixing base 1 is provided with a fixing groove 12, and the inner wall of the fixing groove 12 protrudes circumferentially to form a fixing buckle 121. The fixing buckle 121 and the bottom of the fixing groove 12 form a sliding groove 111. When the first... After the connecting part 11 and the second connecting part 21 are engaged, the slider 211 is located at the mounting interface 112 and the blocking part 322 is located at the mounting opening 214. Then, the fixed seat 1 is rotated, and the slider 211 rotates and enters the slide groove 111. At the same time, the blocking part 322 enters the gap 213 and is pushed by the inner side wall of the arc-shaped protrusion 212 to overcome the elastic pressure and retract. When the fixed seat 1 is rotated to the position where the blocking part 322 and the positioning groove 2223 are directly opposite each other, the elastic member 31 pushes the blocking part 322 into the positioning groove 2223.

[0050] In the above embodiments, the end face of the mounting base 2 is provided with arc-shaped protrusions 212. The number of arc-shaped protrusions 212 is at least two. In other embodiments, the number of arc-shaped protrusions 212 can be three, four, six or other numbers. This specification does not limit this. A gap 213 is formed between the inner wall of the arc-shaped protrusion 212 and the mounting base 2. The gap 213 allows the blocking part 322 to extend into it. Any two adjacent arc-shaped protrusions 212 form a mounting opening 214, into which the first mounting block allows the blocking part 322 to extend. The end face of the fixing base 1 forms a fixing groove 12. The inner wall of the fixing groove 12 is also provided with a plurality of fixing buckles 121. The plurality of fixing buckles 121 are arranged circumferentially along the inner wall of the fixing groove 12. The fixing buckles 121 are located at the groove opening of the fixing groove 12. The fixing buckles 121 and the bottom of the fixing groove 12 form a sliding groove 111. Please refer to Figures 6 to 8 When the first connecting part 11 and the second connecting part 21 are engaged, that is, when the blocking part 322 is located within the mounting opening 214, as Figure 6 As shown, Figures 6 to 8 In the diagram, the M direction is the rotation direction of the blocking part 322, and the S1 direction is the movement direction of the button 32. Figure 6 In the middle, the fixed seat 1 drives the rotation and rotates in the M direction, so that the blocking part 322 follows the rotation and enters the gap 213, such as Figure 7 As shown, during this process, the blocking part 322 retracts against the elastic force, and as the fixed seat 1 continues along... Figure 7 Rotate in the direction until it reaches Figure 8 After reaching the position shown, the blocking part 322 is directly opposite the positioning groove 2223. The elastic member 31 pushes the rotating part along the S1 direction into the positioning groove 2223, completing the connection between the fixed seat 1 and the mounting seat 2 and locking it in place.

[0051] When it is necessary to remove the mounting base 1 from the mounting base 2, the user presses the pressing part 321 to disengage the blocking part 322 from the positioning groove 2223, and then rotates the mounting base 1 in the opposite direction along the S1 direction to allow the blocking part 322 to enter the gap 213. Continue to rotate the mounting base 1 in the opposite direction along the S1 direction to move the blocking part 322 to the mounting opening 214, so as to remove the mounting base 1 from the mounting base 2.

[0052] Based on the above embodiments, the side of the blocking part 322 entering the gap 213 has a first inclined guide surface 5, or the inner wall of the arc-shaped protrusion 212 at the mounting opening 214 is a second inclined guide surface 6. In this embodiment, the side of the blocking part 322 entering the gap 213 is the side of the blocking part 322 facing the slide groove 111. The surface of the arc-shaped protrusion 212 at the mounting opening 214 is the second inclined guide surface 6, which can cooperate with the first inclined guide surface 5, so that the blocking part 322 enters the gap 213 along the arc-shaped protrusion 212 during the rotation of the fixed seat 1. In other embodiments, the pressing part 321 can also be pressed by a person to rotate and enter the gap 213.

[0053] In one embodiment, the button assembly 3 further includes a guide groove 23 disposed within the slide groove 111. A guide rail 231 is provided on the wall of the guide groove 23, and the button 32 is used to move along the guide rail 231. By providing a guide groove 23 within the slide groove 111 in the button assembly 3 and providing a guide rail 231 on the wall of the guide groove 23, the button 32 can move along the guide rail 231, increasing the stability of the button 32 during movement.

[0054] In one embodiment, there are two button assemblies 3, which are symmetrically arranged along the axis of the fixing base 1. Providing two button assemblies 3 increases the friction between the button 32 and the fixing buckle 121. The symmetrical arrangement of the two buttons 32 along the fixing base 1 facilitates pressing the buttons 32 by the user.

[0055] In one embodiment, the fixing base 1 further includes a fixing plate 13, which is disposed within the slide groove 111 and abuts against the groove wall of the slide groove 111. In this embodiment, by providing the fixing plate 13, the elastic element 31 can be positioned within the fixing groove 12, preventing the elastic element 31 from shifting during use. Furthermore, the provision of the fixing plate 13 also increases the stability and structural strength of the fixing base 1.

[0056] Additionally, please refer to Figures 9 to 11 This utility model also provides a chest strap support 200, which includes the aforementioned magnetic quick-release structure 100. The chest strap support 200 also includes a chest strap and inserts 8. The chest strap includes a back strap 71 and a waist belt 72 connected to each other. One end of the back strap 71 and waist belt 72 is connected to the insert 8; the other end of the back strap 71 and waist belt 72 is connected to a fixing piece 9. A mounting base 3 is mounted on the fixing piece 9, and the connection between the mounting base 3 and the fixing piece 9 forms an insertion interface for the insert 8. In this embodiment, the interconnection of the back strap 71 and waist belt 72, and their connection with the insert 8 and fixing piece 9, provides stable support and a comfortable fit. The use of the magnetic quick-release structure 100 simplifies the installation and disassembly process of the chest strap, improving the user experience and assembly efficiency. The insertion interface formed at the connection between the fixing base 1 and the fixing piece 9 allows the insert 8 to be inserted and removed, making the adjustment of the chest strap support 200 more flexible and enhancing the stability of the garment.

[0057] In one embodiment, the insert 8 includes a connecting portion 81 and a plug-in portion 82 connected to each other. One end of the shoulder strap 71 and the waist belt 72 is connected to the connecting portion 81. The plug-in portion 82 is used to insert into the plug-in interface. A spring hook 821 is provided at the end of the plug-in portion 82 away from the connecting portion 81. A deformable arm 32 is provided at the position corresponding to the spring hook 821 on the mounting base 3. In this embodiment, through the mutual connection of the connecting portion 81 and the plug-in portion 82 of the insert 8, and the connection of one end of the shoulder strap 71 and the waist belt 72 to the connecting portion 81 and the other end to the fixing piece 9, the quick connection and disassembly of the chest strap and the fixing base 1 are realized. The spring hook 821 at the end of the plug-in portion 82 away from the connecting portion 81 cooperates with the deformable arm 32 at the corresponding position on the mounting base 3. By squeezing the deformable arm 32, the spring hook 821 is disengaged from the plug-in interface, which facilitates the quick disassembly of the plug-in portion 82 and the connecting portion 81.

[0058] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made using the contents of this utility model's specification and drawings under the technical concept of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A quick-mount structure, characterized by comprising: The quick-mounting structure comprises: a fixed seat comprising a first connecting part, a side wall of the first connecting part forming a sliding groove with a mounting interface; a mounting seat configured to cooperate with the fixed seat, the mounting seat being provided with a second connecting part, a side wall of the second connecting part being provided with a sliding block; wherein the first connecting part is configured to cooperate with the second connecting part; when the first connecting part and the second connecting part cooperate, the sliding block is located in the mounting interface, and after the fixed seat is rotated, the sliding block enters the sliding groove following the rotation.

2. The quick-mount structure of claim 1, wherein The quick-mounting structure further comprises a button assembly, the button assembly comprising an elastic member and a button, the button comprising a pressing part and a blocking part; the button is telescopically mounted on the fixed seat, the elastic member is configured to push the button so that the pressing part is kept extended out of the fixed seat, the mounting seat is provided with a positioning groove, when the fixed seat is rotated to a preset position relative to the mounting seat, the pressing part is opposite to the positioning groove, and the elastic member pushes the blocking part into the positioning groove; alternatively, the button is telescopically mounted on the mounting seat, the elastic member is configured to push the button so that the pressing part of the button is kept extended out of the mounting seat; the positioning groove is provided on the fixed seat, when the fixed seat is rotated to the preset position relative to the mounting seat, the blocking part is opposite to the positioning groove, and the elastic member pushes the pressing part into the positioning groove.

3. The quick fitting structure according to claim 2, wherein At least one of the mounting seat and the fixed seat further comprises a first magnet, and the other comprises a material that can be magnetically attracted by the first magnet or a second magnet.

4. The quick-mount structure of claim 2, wherein An end surface of the mounting seat is provided with at least two arc-shaped protrusions, a gap is provided between inner walls of the arc-shaped protrusions, wherein the sliding block is distributed on outer walls of the arc-shaped protrusions in a circumferential direction, and an installation opening is formed between any two adjacent arc-shaped protrusions; an end surface of the fixed seat is provided with a fixing groove, an inner wall of the fixing groove is protruded along a circumferential direction to form a fixing undercut, and the fixing undercut and a bottom of the fixing groove form the sliding groove; when the first connecting part and the second connecting part cooperate, the sliding block is located in the mounting interface, and the blocking part is located in the installation opening, then the fixed seat is rotated, the sliding block follows the rotation and enters the sliding groove, at the same time, the blocking part enters the gap and is pushed by the inner walls of the arc-shaped protrusions to overcome the elastic pressure and retract, when the fixed seat is rotated to a position where the blocking part is opposite to the positioning groove, the elastic member pushes the blocking part into the positioning groove.

5. The quick fitting structure according to claim 4, wherein a side surface of the blocking part entering the gap has a first inclined guide surface, or an inner wall of the arc-shaped protrusion at the installation opening has a second inclined guide surface.

6. The quick fitting structure according to claim 2, wherein The button assembly further comprises a guide groove provided in the sliding groove, a groove wall of the guide groove is provided with a guide rail, and the button is configured to move along the guide rail.

7. The quick fitting structure according to claim 6, wherein The number of the button assemblies is two, and the two button assemblies are arranged in an axial symmetry along the fixed seat.

8. The quick fitting structure according to claim 1, wherein The fixed seat further comprises a fixed plate, the fixed plate is provided in the sliding groove and abuts against a groove wall of the sliding groove.

9. A chest strap support characterized by, The chest band support comprises the quick-mounting structure as claimed in any one of claims 1-8, and further comprises: a chest band comprising a back strap and a waist strap connected to each other; a plug piece, one end of the back strap and the waist strap being connected to the plug piece; a fixing piece, the other end of the back strap and the waist strap being connected to the fixing piece, the mounting seat being mounted on the fixing piece, and the connection between the mounting seat and the fixing piece forming a plug-in interface for the plug piece to be inserted into; 10. The chest strap holder of claim 9, wherein, the plug piece comprising a connecting portion and a plug-in portion connected to each other, the connecting portion being connected to one end of the back strap and the waist strap, the plug-in portion being used for being inserted into the plug-in interface, and a spring hook being arranged at the end of the plug-in portion away from the connecting portion, the mounting seat being provided with a deformed arm corresponding to the position of the spring hook.

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