Novel pectoral girdle adjusting insertion buckle
By designing a new type of chest strap adjustment buckle, the problems of existing backpack buckles being unable to adjust the position of the chest strap and the webbing getting tangled are solved, achieving flexible adjustment and stable fixation of the chest strap position.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHE JIANG JIA LIAN JING MI WU JIN PEI JIAN YOU XIAN GONG SI
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-19
AI Technical Summary
Existing backpack buckles do not allow for easy adjustment of the chest strap position, and the connecting webbing is prone to tangling and wobbling when not in use.
A novel chest strap adjustment buckle has been designed, including a male buckle and a female buckle. The male buckle has a flexible pin and a guide tongue, while the female buckle has an adjustment connecting buckle. The position of the chest strap can be adjusted through the forming part and the stop bar structure, and the webbing is prevented from sliding by the clamping part and the anti-slip part.
It allows for flexible adjustment of the chest strap position, avoiding webbing tangling and swaying, and improving the stability and convenience of use.
Smart Images
Figure CN224250858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of buckle technology, and in particular to a novel chest strap adjustment buckle. Background Technology
[0002] Currently, there are various types and styles of backpack buckles on the market. Their function is to fasten the backpack straps that pass through the buckle, thereby adjusting the length of the backpack straps to meet the needs of people of different heights. Existing backpack buckles generally consist of a male buckle and a female buckle, each with a corresponding locking mechanism to achieve the locking action.
[0003] For example, a backpack buckle as described in Chinese utility model CN201822270621.8 includes a male buckle and a female buckle that interlock. The male buckle has elastic prongs on both sides, and the outer end of each prong has a snap-fit part. The female buckle has an insertion cavity opened along the insertion direction. One end of the insertion cavity is an insertion port, and the other end of the insertion cavity has snap-fit openings on both sides that engage with the snap-fit parts of the corresponding prongs. The male buckle has a guide tongue between the two prongs. The prongs have hollow holes, and the guide tongue has guide protrusions on both sides. The length of the guide protrusions extends along the insertion direction. The female buckle has a guide groove corresponding to the guide protrusions.
[0004] When this type of buckle is used on the chest strap of a backpack, it requires two webbing extending from the backpack strap and fastening them in front of the chest to reduce the burden on the back. However, this type of chest strap buckle can only be used in a fixed position and the position of the chest strap cannot be adjusted at will. In addition, when the two webbing connecting the buckle are not in use, they may become tangled due to shaking. Utility Model Content
[0005] In view of this, the present invention provides a novel chest strap adjustment buckle to solve the above-mentioned technical problems.
[0006] A novel chest strap adjustment buckle includes a male buckle and a female buckle for inserting the male buckle. The male buckle includes a pair of resilient prongs extending from its body, a guide tongue located between the resilient prongs, a webbing connecting buckle on one side of the male buckle's pull-out direction, and a connecting spring between the resilient prongs and the guide tongue. The two resilient prongs are axially symmetrical about the guide tongue and extend towards the side of the male buckle away from the webbing connecting buckle. The female buckle includes an insertion port, a guide groove within the insertion port, two pressing ports on either side of the guide groove, and an adjustment connecting buckle at one end of the female buckle away from the insertion port. The adjustment connecting buckle includes a molded portion on the female buckle, a stop bar within the molded portion, two clamping portions on the molded portion, and an anti-slip portion on the stop bar. The molded portion is a rectangular frame structure and is arc-shaped in its width direction perpendicular to the insertion direction of the male buckle. The stop bar is disposed within the molding section and located on the axis of symmetry of the molding section, with its extension direction consistent with the insertion direction of the male buckle. The stop bar is located at the apex of the arc-shaped structure of the molding section. The clamping part is a serrated structure disposed on the molding section, with its arrangement direction consistent with the extension direction of the stop bar. The anti-slip part is disposed on the surface of the stop bar and located on the side of the stop bar near the arc-shaped apex of the molding section; it is a multi-toothed ridge-shaped protrusion with its extension direction consistent with the extension direction of the stop bar.
[0007] Furthermore, each of the resilient pins includes a pressing portion located at the free end, an elastic portion connecting the pressing portion and the main body of the male buckle, and a locking portion disposed between the pressing portion and the elastic portion.
[0008] Furthermore, the pressing part is located at the free end of the elastic pin away from the webbing connecting buckle, and an arc-shaped guide surface is provided on the side away from the guide tongue.
[0009] Furthermore, the locking part is located at the connection between the pressing part and the elastic part, and is disposed on the side away from the guide tongue, forming a snap-fit step at an acute angle to the surface of the elastic part.
[0010] Furthermore, the guide tongue is a guide structure disposed on the axis of symmetry of the two elastic pins, extending in the same direction as the extension direction of the elastic pins, and a guide structure is provided at the edge of the free end.
[0011] Furthermore, each of the connecting springs is disposed between the elastic pin and the guide tongue, and is a curved spring.
[0012] Furthermore, the pressing holes are located on both sides of the female buckle perpendicular to the direction of the insertion opening, and the whole has an inwardly concave arc structure.
[0013] Furthermore, the clamping part is located on the side of the molding part near the stop bar and on the corner away from the arc apex of the molding part.
[0014] Furthermore, the adjusting connecting buckle also includes multiple limiting holes provided on the stop bar.
[0015] Furthermore, the limiting hole is located on the other side of the stop bar away from the anti-slip part, and is a groove provided on the surface of the stop bar.
[0016] Compared with existing technologies, the novel chest strap adjustment buckle provided by this utility model, by setting the adjustment connecting buckle, directly sets the female buckle on one of the backpack straps, which reduces the need for webbing for connection and fixation, and avoids entanglement of the connecting webbing between the male and female buckles. At the same time, by setting the forming part and the stop bar, the position of the female buckle on the backpack strap can be adjusted according to the customer's needs. Furthermore, by setting the clamping part and the anti-slip part, the friction force after the strap is taut prevents the female buckle from moving freely after being fastened. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a novel chest strap adjustment buckle provided by this utility model.
[0018] Figure 2 for Figure 1 A schematic diagram of the male buckle structure of the new type of chest strap adjustment buckle.
[0019] Figure 3 for Figure 1 A schematic diagram of the female buckle structure of the new type of chest strap adjustment buckle.
[0020] Figure 4 for Figure 1 A schematic diagram of the female buckle of the new type of chest strap adjustment buckle from another perspective. Detailed Implementation
[0021] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.
[0022] like Figures 1 to 4The diagram shown is a structural schematic of the novel chest strap adjusting buckle provided by this utility model. The novel chest strap adjusting buckle includes a male buckle 10 and a female buckle 20 for inserting the male buckle 10. It is conceivable that the novel chest strap adjusting buckle also includes other functional modules such as labels on the buckle surface, webbing connected to the buckle, etc., which are technologies known to those skilled in the art and will not be described in detail here.
[0023] The male buckle 10 can be made of plastic injection molding and integrally formed. It includes a pair of elastic prongs 11 extending from the body of the male buckle 10, a guide tongue 12 located between the elastic prongs 11, a webbing connecting buckle 13 disposed on the pull-out side of the male buckle 10, and a connecting spring 14 disposed between the elastic prongs 11 and the guide tongue 12.
[0024] The two resilient prongs 11 are arranged symmetrically about the guide tongue 12 and extend toward the side of the male buckle 10 away from the webbing connecting buckle 13, so as to be inserted into the female buckle 20 when the male buckle 10 is fastened with the female buckle 20. Each resilient prong 11 includes a pressing part 111 located at the free end, an elastic part 112 connecting the pressing part 111 and the body of the male buckle 10, and a locking part 113 disposed between the pressing part 111 and the elastic part 112.
[0025] The pressing part 111 is located at the free end of the elastic pin 11 away from the webbing connecting buckle 13, and has an arc-shaped guide surface on the side away from the guide tongue 12 to guide the insertion of the male buckle 10 into the female buckle 20. The elastic part 112 connects the pressing part 111 and the male buckle 10, providing elasticity to the pressing part 111 so that it can generate elastic force in a direction toward the guide tongue 12 and perpendicular to the insertion direction. The locking part 113 is located at the connection between the pressing part 111 and the elastic part 112, and is located on the side away from the guide tongue 12. It is a snap-fit step with an acute angle to the surface of the elastic part 112, so that when the male buckle 10 is inserted into the female buckle 20, it hooks onto the corresponding part of the female buckle 20 to complete the locking. This will be described in detail below with reference to the specific structure of the female buckle 20.
[0026] The guide tongue 12 is a guide structure arranged on the axis of symmetry of the two elastic pins 11. Its extension direction is consistent with the extension direction of the elastic pins 11, and a guide structure is provided on the edge of the free end to guide the insertion of the elastic pins 11 into the female buckle 20, so as to facilitate the insertion.
[0027] The webbing connector 13 is a common backpack strap length adjustment buckle, used to adjust the length of the webbing. It is existing technology and should be well known to those skilled in the art, so its structure and function will not be described in detail here.
[0028] Each of the connecting spring pieces 14 is disposed between the elastic pin 11 and the guide tongue 12. It is a curved spring piece to provide elastic compensation for the elastic pin 11, making the elastic force of the elastic pin 11 stronger and effectively reducing the impact of plastic elastic fatigue on the buckle.
[0029] The female buckle 20 is an insertion cavity made of plastic injection molding, which includes an insertion port 21, a guide groove 22 disposed in the insertion port 21, two pressing ports 23 disposed on both sides of the guide groove 22, and an adjustment connecting buckle 24 disposed at the end of the female buckle 20 away from the insertion port 21.
[0030] The width of the insertion port 21 is sufficient to accommodate the two elastic prongs 11. The guide groove 22 is located in the center of the insertion port 21 and is sized to just accommodate the insertion of the guide tongue 12, so that the male buckle 10 will not wobble after being inserted into the female buckle 20.
[0031] The pressing openings 23 are located on both sides of the female buckle 20 perpendicular to the opening direction of the insertion port 21, and have an overall inwardly concave arc structure, so that when the elastic pin 11 is inserted into the female buckle 20, the pressing part 111 protrudes from the pressing openings 23. The pressing openings 23 communicate with the insertion port 22, so that when the buckle is fastened, the pressing part 122 passes through and protrudes.
[0032] The adjusting connecting buckle 24 includes a forming part 241 disposed on the female buckle 20, a stop bar 242 disposed in the forming part 241, two clamping parts 243 disposed on the forming part 241, an anti-slip part 244 disposed on the stop bar 242, and a plurality of limiting holes 245 disposed on the stop bar 242.
[0033] The forming part 241 is a rectangular frame structure, and it is arc-shaped in the width direction perpendicular to the insertion direction of the male buckle 10. On the one hand, it can fit the human body, and on the other hand, when the webbing passes through and is straightened, the clamping part 243 and the anti-slip part 244 can press on the surface of the webbing.
[0034] The stop bar 242 is disposed inside the forming part 241 and located on the axis of symmetry of the forming part 241, and its extension direction is consistent with the insertion direction of the male buckle 10, thereby dividing the forming part 241 into two parts in the middle to form a staggered structure for the webbing to pass through. Correspondingly, the stop bar 242 is located at the apex of the arc-shaped structure of the forming part 241.
[0035] The clamping part 243 is a serrated structure provided on the forming part 241. The arrangement direction is consistent with the extension direction of the stop bar 242, and it is located on the side of the forming part 241 near the stop bar 242 and on the corner away from the arc apex of the forming part 241, so that it can be pressed on the webbing when the webbing passes through, and when the webbing is straightened, the friction force prevents the female buckle 20 from sliding freely on the webbing.
[0036] The anti-slip part 244 is disposed on the surface of the stop bar 242 and located on the side of the stop bar 242 near the arc-shaped apex of the forming part 241. It is a multi-toothed ridge protrusion, and its extension direction is consistent with the extension direction of the stop bar 242. This allows the female buckle 20 to slide along the webbing when it is loosened, and presses on the anti-slip part 244 when it is straightened, thus playing an anti-slip role.
[0037] The limiting hole 245 is located on the other side of the stop bar 242 away from the anti-slip part 244. It is a groove on the surface of the stop bar 242. The position of the female buckle 20 can be fixed by setting a positioning block on the strap.
[0038] In use, the male buckle 10 and female buckle 20 are respectively installed on the backpack strap. The male buckle 10 is connected to the backpack strap as a chest strap via a webbing and passes through the webbing connecting buckle 13, thereby adjusting the length of the chest strap. The female buckle 20 can be directly installed on the backpack strap or on the adjusting webbing on the backpack strap. The two ends of the webbing pass through the two sides of the stop bar 242 and emerge between the forming part 241 and the stop bar 242, so that the surface of the webbing presses on the anti-slip part 244 and the two ends of the webbing press on the clamping part 243. When the webbing is loose, the female buckle 20 can slide along the webbing to adjust the position of the chest strap connection. When the webbing is taut, the anti-slip part 244 and the clamping part 243 press on the surface of the webbing simultaneously to prevent the webbing from sliding randomly and to ensure that the position of the chest strap does not easily change.
[0039] Compared with the prior art, the novel chest strap adjustment buckle provided by this utility model, by setting the adjustment connecting buckle 24, directly sets the female buckle 20 on one of the backpack straps, which can reduce the need for webbing for connection and fixation, and avoid entanglement of the connecting webbing of the male and female buckles. At the same time, by setting the forming part 241 and the stop bar 242, the position of the female buckle 20 on the backpack strap can be adjusted according to the customer's needs. Furthermore, by setting the clamping part 243 and the anti-slip part 244, the friction force after the strap is straightened prevents the female buckle from moving freely after being fastened.
[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.
Claims
1. A novel chest strap adjustment buckle, characterized in that: The novel chest strap adjustment buckle includes a male buckle and a female buckle for inserting the male buckle. The male buckle includes a pair of elastic prongs extending from the body of the male buckle, a guide tongue located between the elastic prongs, a webbing connecting buckle located on one side of the male buckle in the pull-out direction, and a connecting spring between the elastic prongs and the guide tongue. The two elastic prongs are axially symmetrical about the guide tongue and extend toward the side of the male buckle away from the webbing connecting buckle. The female buckle includes an insertion port, a guide groove located in the insertion port, two pressing ports located on both sides of the guide groove, and an adjustment connecting buckle located at one end of the female buckle away from the insertion port. The adjustment connecting buckle includes a connecting spring located on the female buckle. The buckle includes a forming part, a stop bar located within the forming part, two clamping parts located on the forming part, and an anti-slip part located on the stop bar. The forming part is a rectangular frame structure with an arc shape in the width direction perpendicular to the insertion direction of the male buckle. The stop bar is located within the forming part and on the axis of symmetry of the forming part, extending in the same direction as the insertion direction of the male buckle. The stop bar is located at the apex of the arc-shaped structure of the forming part. The clamping parts are serrated structures located on the forming part, arranged in the same direction as the extension direction of the stop bar. The anti-slip part is located on the surface of the stop bar and on the side of the stop bar near the arc-shaped apex of the forming part. It is a multi-toothed ridge protrusion extending in the same direction as the extension direction of the stop bar.
2. The novel chest strap adjusting buckle as described in claim 1, characterized in that: Each of the resilient pins includes a pressing portion located at the free end, a resilient portion connecting the pressing portion to the main body of the male buckle, and a locking portion disposed between the pressing portion and the resilient portion.
3. The novel chest strap adjusting buckle as described in claim 2, characterized in that: The pressing part is located at the free end of the elastic pin away from the webbing connector, and an arc-shaped guide surface is provided on the side away from the guide tongue.
4. The novel chest strap adjusting buckle as described in claim 2, characterized in that: The locking part is located at the connection between the pressing part and the elastic part, and is disposed on the side away from the guide tongue, forming a snap-fit step at an acute angle to the surface of the elastic part.
5. The novel chest strap adjusting buckle as described in claim 1, characterized in that: The guide tongue is a guide structure arranged on the axis of symmetry of the two elastic pins, extending in the same direction as the extension direction of the elastic pins, and has a guide structure at the edge of the free end.
6. The novel chest strap adjusting buckle as described in claim 1, characterized in that: Each of the connecting springs is located between the elastic pin and the guide tongue, and is a curved spring.
7. The novel chest strap adjusting buckle as described in claim 1, characterized in that: The pressing holes are located on both sides of the female buckle, perpendicular to the direction of the insertion opening, and the whole has an inwardly concave arc structure.
8. The novel chest strap adjusting buckle as described in claim 1, characterized in that: The clamping part is located on the side of the molding part closer to the stop bar and on the corner of the side away from the arc apex of the molding part.
9. The novel chest strap adjusting buckle as described in claim 1, characterized in that: The adjusting connector also includes multiple limiting holes provided on the stop bar.
10. The novel chest strap adjusting buckle as described in claim 9, characterized in that: The limiting hole is located on the other side of the stop bar away from the anti-slip part, and is a groove provided on the surface of the stop bar.