Ribbon adjusting buckle and helmet

Abstract

The utility model discloses a braid adjusting buckle and a helmet. The braid adjusting buckle comprises a buckle seat; the rotating arm is provided with a leftward first end part, a rightward second end part and a central part, and the central part can be rotationally restrained on the buckle seat so that the rotating arm can turn over up and down relative to the buckle seat; a first limiting block is arranged at the position, located above the first end of the rotating arm, of the buckle base, and a first gap is formed between the first limiting block and the rotating arm. A second limiting block is arranged at the position, located on the right side of the second end of the rotating arm, of the buckle base, the left side face of the second limiting block inclines leftwards from top to bottom, and the left side face of the second limiting block and the second end of the rotating arm are opposite in a spaced mode to form a second gap, so that the right end of the braid penetrating through the first gap bypasses the second end of the rotating arm and then penetrates through the second gap downwards. When the braid is tensioned, the second end of the rotating arm rotates towards the second limiting block under the action of the braid so that the braid can abut against the portion between the second end of the rotating arm and the left side face of the second limiting block. According to the utility model, the braid can be locked, and the braid locking position can be adjusted at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective appliances, and particularly relates to a webbing adjusting buckle and a helmet. Background Art

[0002] Existing helmets generally include a helmet body for protecting the user's head, a webbing connected to the helmet body, and a webbing adjusting buckle. When in use, the webbing bypasses the user's chin and is fastened by the webbing adjusting buckle to prevent the helmet from accidentally detaching from the user's head.

[0003] Existing webbing adjusting buckles, such as the Chinese invention patent "Helmet Buckle" with the application number 201610380556.7 and the authorization announcement number CN107307497B, include: a belt unit having a first tooth; a base unit for guiding the sliding of the belt unit when the belt unit is introduced or retracted; a locking unit pivotally fastened to one side of the base unit and having a second tooth portion on a surface facing the belt unit to correspond to the first tooth portion, the second tooth portion being pushed towards the belt unit; and an operating unit fastened to the other side of the base unit to be movable towards the locking unit, the operating unit being used to pivot the locking unit so that when the operating unit moves towards the locking unit to apply pressure to the locking unit, the second tooth portion moves away from the belt unit.

[0004] Another example is the Chinese utility model patent "A Helmet Cord Buckle with a Locking Function" with the application number 202022670610.6 and the authorization announcement number CN214386285U, which includes an upper cover, a base, and a first helmet belt and a second helmet belt respectively connected to both sides of the helmet. One side of the upper cover and the base is connected by a rotating shaft. The first helmet belt is fixed to one side of the base. The second helmet belt passes through a buckle, and the buckle is fixed to the other side of the base. The upper cover is provided with a password lock, and the password lock is connected to control a spring buckle. A card hole adapted to the spring buckle is correspondingly provided on the base. The upper cover is provided with a downward pressure opening serration for clamping the second helmet belt on the side close to the first helmet belt. When the helmet cord buckle is in the locked state, the spring buckle of the upper cover is locked in the card hole of the base, and the pressure opening serration of the upper cover clamps the second helmet belt.

[0005] Existing helmet buckles generally only have a locking function. When it is necessary to adjust the length of the webbing, it is necessary to additionally adjust the length adjusting buckle on the webbing, resulting in inconvenient operation. Summary of the Utility Model

[0006] The first technical problem to be solved by the utility model is to provide a webbing adjusting buckle that can lock the webbing and adjust the locking position of the webbing at the same time in view of the current situation of the prior art.

[0007] The second technical problem to be solved by the present utility model is to provide a helmet with the above-mentioned webbing adjusting buckle.

[0008] The technical solution adopted by the present utility model to solve the above-mentioned first technical problem is: a webbing adjusting buckle, comprising:

[0009] A buckle base;

[0010] A rotating arm, the length direction of which is defined as the left-right direction. The rotating arm has a first end portion facing left, a second end portion facing right, and a central portion located between the first and second end portions. The central portion is rotatably constrained to the buckle base so that the first and second end portions of the rotating arm can flip up and down relative to the buckle base;

[0011] It is characterized in that:

[0012] A first limiting block is provided at a position above the first end portion of the rotating arm on the buckle base. A first gap is formed between the first limiting block and the rotating arm for the webbing to pass through left and right;

[0013] A second limiting block is provided at a position to the right of the second end portion of the rotating arm on the buckle base. The left side surface of the second limiting block is inclined leftward from top to bottom and is spaced relative to the second end portion of the rotating arm to form a second gap for the right end portion of the webbing passing through the first gap to bypass the second end portion of the rotating arm and then pass through downward;

[0014] At the same time, when the webbing is tightened, the second end portion of the rotating arm rotates towards the second limiting block under the action of the webbing and presses the webbing tightly between the second end portion of the rotating arm and the left side surface of the second limiting block.

[0015] In this way, the webbing of the present utility model passes through the first gap and the second gap on the webbing adjusting buckle in sequence. After the webbing is tightened, the webbing acts on the rotating arm to make the second end portion of the rotating arm rotate towards the second limiting block, and then presses the webbing tightly between the second end portion of the rotating arm and the left side surface of the second limiting block. Moreover, the greater the tightening force of the webbing, the greater the pressing force acting on the webbing. At the same time, by rotating the rotating arm to make the second end portion of the rotating arm deviate from the second limiting block, the webbing can be moved along the length direction to adjust the locked position of the webbing, which is convenient for operation.

[0016] At the same time, the webbing adjusting buckle of the present utility model can be adapted to webbings of different thicknesses.

[0017] Preferably, the second limiting block further has a lower end surface that folds backward and extends rightward from the lower edge of its left side surface for the right end portion of the webbing passing through the second gap to bypass rightward. Thus, the webbing can extend from both the left and right sides of the adjusting buckle.

[0018] Further, the connection between the left side surface and the lower end surface of the second limiting block is in an arc transition connection, which can reduce the wear on the webbing and is beneficial to the movement of the webbing during adjustment.

[0019] Preferably, a convex point is provided on the second end portion of the swing arm, and the convex point is opposite to the left side surface of the second limiting block. The convex point is beneficial to pressing the webbing tightly.

[0020] In the above solution, preferably, the upper end surfaces of the first limiting block, the second limiting block and the buckle seat are flush with each other and are located above the swing arm. In this way, the flush upper end surfaces of the first limiting block, the second limiting block and the buckle seat are beneficial to adjusting the buckle to fit the protected part where the webbing is applied. For example, for the webbing on a helmet, the adjusting buckle of the present invention can be well fitted to the user's chin.

[0021] To simplify the structure, further, the buckle seat includes two vertically arranged vertical plates, and the plate surfaces of the two vertical plates face each other and are arranged side by side, one in front and the other behind;

[0022] The first limiting block and the second limiting block are both strip-shaped extending in the front-back direction, and the two are arranged one on the left and the other on the right between the two vertical plates to connect the two vertical plates.

[0023] Further, the buckle seat, the first limiting block and the second limiting block are connected into an integral part.

[0024] In the above solutions, preferably, the swing arm is in an inverted V shape in the length direction.

[0025] The technical solution adopted by the present invention to solve the above second technical problem is: a helmet, including:

[0026] A helmet main body, the inner wall surface of which defines a receiving cavity with an opening facing downward for the user's head to be placed therein;

[0027] A webbing folded in half into two layers;

[0028] Characterized in that it further includes the above-mentioned webbing adjusting buckle, and the webbing folded in half into two layers passes through the first gap and the second gap of the webbing adjusting buckle and then the two ends are connected to the left and right sides of the opening of the helmet main body.

[0029] The technical solution adopted by the present invention to solve the above second technical problem can also be: a helmet, including:

[0030] A helmet main body, the inner wall surface of which defines a receiving cavity with an opening facing downward for the user's head to be placed therein;

[0031] A single-layer webbing;

[0032] It is characterized in that it further includes the webbing adjusting buckle as described above. The right end of the single-layer webbing passes through the first gap and the second gap and then is connected to the right side of the opening of the helmet body. The left part of the single-layer webbing is folded in half to form a double layer, and the folding position is connected to the left side of the opening of the helmet body. The end of the webbing after folding passes around the upper end face of the first limiting block and then passes through the first gap from right to left.

[0033] In the present utility model, compared with the single-layer webbing, the cooperation between the webbing folded in half to form a double layer and the webbing adjusting buckle enables a wider adjustment range of the webbing.

[0034] Compared with the prior art, the advantages of the present utility model are as follows: The webbing of the present utility model sequentially passes through the first gap and the second gap on the webbing adjusting buckle. After the webbing is tightened, the webbing acts on the rotating arm, causing the second end of the rotating arm to rotate towards the second limiting block, and then pressing the webbing tightly between the second end of the rotating arm and the left side surface of the second limiting block. Moreover, the greater the tightening force of the webbing, the greater the pressing force acting on the webbing. At the same time, by rotating the rotating arm to make the second end of the rotating arm rotate away from the second limiting block, the position where the webbing is locked can be adjusted by moving the webbing along the length direction, which is convenient for operation.

[0035] At the same time, the webbing adjusting buckle of the present utility model can be adapted to webbings of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic structural diagram of the webbing adjusting buckle and the webbing folded in half to form a double layer after being assembled together in Embodiment 1 of the present utility model;

[0037] Figure 2 It is a cross-sectional view (webbing tightened) of the webbing adjusting buckle and the webbing folded in half to form a double layer after being assembled together in Embodiment 1 of the present utility model;

[0038] Figure 3 It is a cross-sectional view (webbing not tightened) of the webbing adjusting buckle and the webbing folded in half to form a double layer after being assembled together in Embodiment 1 of the present utility model;

[0039] Figure 4 It is a three-dimensional exploded view of the webbing adjusting buckle and the webbing folded in half to form a double layer in Embodiment 1 of the present utility model;

[0040] Figure 5 It is another three-dimensional exploded view of the webbing adjusting buckle and the webbing folded in half to form a double layer from another perspective in Embodiment 1 of the present utility model;

[0041] Figure 6 It is a schematic structural diagram of the helmet in Embodiment 1 of the present utility model;

[0042] Figure 7 It is a schematic structural diagram of the webbing adjusting buckle and the single-layer webbing after being assembled together in Embodiment 2 of the present utility model;

[0043] Figure 8 The sectional view (the webbing is not tightened) after the webbing adjusting buckle of the second embodiment of the present utility model is assembled with a single-layer webbing;

[0044] Figure 9 The three-dimensional exploded view of the webbing adjusting buckle of the second embodiment of the present utility model and a single-layer webbing. Specific embodiments

[0045] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0046] Embodiment 1:

[0047] As Figures 1-6 shown, it is the first preferred embodiment of the webbing adjusting buckle and the helmet of the present utility model. The webbing adjusting buckle includes a buckle base 1 and a swing arm 2.

[0048] Among them, the buckle base 1 includes two vertically arranged vertical plates 10, and the plate surfaces of the two vertical plates 10 face each other and are arranged side by side, one in front and the other behind. The buckle base 1 further includes a first limiting block 11 and a second limiting block 12 extending in the front and rear directions. The first limiting block 11 and the second limiting block 12 are respectively arranged between the two vertical plates 10, one on the left and the other on the right, to connect the two vertical plates 10 and are integrally connected with the vertical plates 10. At the same time, in this embodiment, the upper end surface of the first limiting block 11 is a plane and is flush with the upper end surface of the second limiting block 12 and the upper end surface of the buckle base 1. At the same time, the cross-section of the first limiting block 11 is an inverted triangle, and the three corners of the inverted triangle are rounded corners. The left side surface of the second limiting block 12 faces the first limiting block 11, and the left side surface of the second limiting block 12 is inclined leftward from top to bottom. The lower end surface of the second limiting block 12 extends backward and then rightward from the lower edge of its left side surface 121 and is located below the first limiting block 12, and the connection between the left side surface 121 and the lower end surface 122 of the second limiting block 12 is in an arc transition connection.

[0049] The length direction of the above-mentioned swing arm 2 is the left-right direction, and the swing arm 2 has a first end 21 facing left, a second end 22 facing right, and a central portion 23 located between the first and second ends. The central portion 23 is rotatably constrained to the buckle base 1 so that the first and second ends of the swing arm 2 can be turned up and down relative to the buckle base 1. Specifically, a rotating shaft 231 extending in the front-rear direction is provided on the central portion 23, and insertion holes 101 for inserting the ends of the corresponding rotating shaft 231 are provided on both of the two vertical plates 10, so that the swing arm 2 is rotatably constrained to the buckle base 1. At the same time, the first end 21 of the swing arm 2 is located below the first limiting block 11, and a first gap 110 is formed between the first end 21 and the first limiting block 11 for the webbing 3 to pass through left and right. The second end 22 of the swing arm 2 is located on the left side of the second limiting block 12, and a second gap 120 is formed between the second end 22 and the left side surface 121 of the second limiting block 12 for the right end of the webbing 3 passing through the first gap 110 to bypass the second end 22 of the swing arm 2 and then pass through downward, and the right end of the webbing 3 passing through the second gap 120 bypasses the lower end surface 122 of the second limiting block 12 to the right. At the same time, when the webbing 3 is tightened, the second end 22 of the swing arm 2 rotates toward the second limiting block 12 under the action of the webbing 3 and presses the webbing 3 tightly between the second end 22 of the swing arm 2 and the left side surface 121 of the second limiting block 12. For details, please refer to Figure 2 . When the swing arm 2 is manually driven to rotate so that the second end 22 of the swing arm 2 moves away from the second limiting block 12, the second end 22 of the swing arm 2 releases the constraint on the webbing and can adjust the position of the webbing. For details, please refer to Figure 3 .

[0050] To increase the pressing force on the webbing 3, in this embodiment, a convex point 221 is provided on the second end 22 of the swing arm 2, and the convex point 221 faces the left side surface 121 of the second limiting block 12. At the same time, the swing arm 2 is in an inverted V shape in the length direction.

[0051] As Figure 6 shown, the helmet of this embodiment includes a helmet main body 4, a webbing 3 folded in half into two layers, and the above-mentioned webbing adjusting buckle.

[0052] The helmet main body 4 is a prior art, and its inner wall surface defines a receiving cavity 40 with an opening facing downward for the user's head to be placed therein.

[0053] The folded double-layer webbing 3 passes through the first gap 110 and the second gap 120 of the webbing adjustment buckle. The folded position on the left side of the webbing is connected to the left side of the opening of the helmet main body 4, and one end of the right side of the webbing is connected to the right side of the opening of the helmet main body 4. The other end of the right side of the webbing is a free end, which can be used to adjust the length of the webbing. Specifically, when the second end 22 of the rotating arm 2 releases the restraint on the webbing and can adjust the position of the webbing, the length can be adjusted by pulling the free end of the right side of the webbing. After the adjustment is completed, the webbing can be tightened on both the left and right sides to make the second end 22 of the rotating arm 2 lock the webbing and prevent the webbing from moving.

[0054] Embodiment 2:

[0055] As Figures 7-9 shown, it is the second preferred embodiment of the webbing adjustment buckle and the helmet of the present utility model. This embodiment is basically the same as Embodiment 1, except that in this embodiment, the webbing 3 is single-layer, and the right end of the single-layer webbing 3 passes through the first gap 110 and the second gap 120 and is then connected to the right side of the opening of the helmet main body 4. The left part of the single-layer webbing 3 is folded into a double layer, and the folded position is connected to the left side of the opening of the helmet main body 4. After folding, the end of the webbing 3 bypasses the upper end surface of the first limiting block 11 and then passes through the first gap 110 from right to left.

[0056] And the webbing 3 passing through the first gap 110 from right to left can be sewn and knotted together with the webbing before folding around the first limiting block 11, as Figure 8 shown in part A.

[0057] When the second end 22 of the rotating arm 2 releases the restraint on the webbing and can adjust the position of the webbing, the webbing can be pulled to make the single-layer part of the webbing move relative to the adjustment buckle. After the adjustment is completed, the webbing can be tightened on both the left and right sides to make the second end 22 of the rotating arm 2 lock the webbing and prevent the webbing from moving.

[0058] In the description and claims of the present utility model, terms indicating directions such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various exemplary structural parts and elements of the present utility model. However, these terms are used here only for the convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed by the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite or consistent with the direction of gravity.

[0059] In the description and claims of the present utility model, the term "vertical" is also used, which means basically along the up and down direction, not limited to just the vertical direction, and can also be slightly inclined relative to the vertical direction.

Claims

1. A webbing adjusting buckle, comprising: A buckle base (1); A rotating arm (2), denoting its length direction as the left - right direction. The rotating arm (2) has a first end (21) facing left, a second end (22) facing right, and a central part (23) located between the first and second ends. The central part (23) is rotatably constrained to the buckle base (1) such that the first and second ends of the rotating arm (2) can flip up and down relative to the buckle base (1); It is characterized in that: A first limiting block (11) is provided on the buckle base (1) at a position above the first end (21) of the rotating arm (2). A first gap (110) is formed between the first limiting block (11) and the rotating arm (2) for the webbing (3) to pass through left - and - right; A second limiting block (12) is provided on the buckle base (1) at a position to the right of the second end (22) of the rotating arm (2). The left side surface (121) of the second limiting block (12) slopes leftward from top to bottom and is spaced relative to the second end (22) of the rotating arm (2) to form a second gap (120) for the right end of the webbing (3) passing through the above - mentioned first gap (110) to bypass the second end (22) of the rotating arm (2) and then pass through downward; Meanwhile, when the webbing (3) is tightened, the second end (22) of the rotating arm (2) rotates towards the second limiting block (12) under the action of the webbing (3) and presses the webbing (3) against the second end (22) of the rotating arm (2) and the left side surface (121) of the second limiting block (12).

2. The webbing adjusting buckle according to claim 1, wherein: The second limiting block (12) further has a lower end surface (122) that folds backward from the lower edge of its left side surface (121) and extends rightward for the right end of the webbing (3) passing through the above - mentioned second gap (120) to bypass rightward.

3. The webbing adjusting buckle according to claim 2, characterized in that: The connection between the left side surface (121) and the lower end surface (122) of the second limiting block (12) is in an arc - transition connection.

4. The webbing adjusting buckle according to claim 1, characterized in that: A convex point (221) is provided on the second end (22) of the rotating arm (2), and the convex point (221) is opposite to the left side surface (121) of the second limiting block (12).

5. The webbing adjusting buckle according to claim 1, wherein: The upper end surfaces of the first limiting block (11), the second limiting block (12), and the upper end surface of the buckle base (1) are flush and located above the rotating arm (2).

6. The webbing adjusting buckle according to claim 5, wherein: The buckle base (1) includes two vertically arranged vertical plates (10), and the plate surfaces of the two vertical plates (10) face each other and are arranged side - by - side, one in front and the other behind; The first limiting block (11) and the second limiting block (12) are both strip - shaped extending in the front - and - back direction, and the two are arranged one on the left and the other on the right between the two vertical plates (10) to connect the two vertical plates (10).

7. The webbing adjusting buckle according to claim 6, characterized in that: The buckle base (1) is integrally connected with the first limiting block (11) and the second limiting block (12).

8. The webbing adjusting buckle according to any one of claims 1 to 7, characterized in that: The rotating arm (2) is in an inverted V - shape in the length direction.

9. A helmet, comprising: A helmet body (4), the inner wall surface of which defines a receiving cavity (40) with an opening facing downwards for the user's head to be placed therein; A webbing (3) folded in half to form a double - layer; It is characterized in that It further includes a webbing adjustment buckle as described in any one of claims 1 to 8, and the webbing (3) folded in double layers passes through the first gap (110) and the second gap (120) of the webbing (3) adjustment buckle, and both ends are connected to the left and right sides of the opening of the helmet body (4).

10. A helmet, comprising: A helmet body (4), the inner wall surface of which defines a receiving cavity (40) with an opening facing downward for the user's head to be placed therein; A single-layer webbing (3); It is characterized in that It further includes a webbing adjustment buckle as described in any one of claims 1 to 8. The right end of the single-layer webbing (3) passes through the first gap (110) and the second gap (120) and is then connected to the right side of the opening of the helmet body (4). The left part of the single-layer webbing (3) is folded in double layers, and the folding position is connected to the left side of the opening of the helmet body (4). After folding, the end of the webbing (3) bypasses the upper end surface of the first limiting block (11) and then passes through the first gap (110) from right to left.

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