Buckle with self-locking structure

Abstract

The utility model discloses a fastener with a self-locking structure in the technical field of fasteners, which structurally comprises a female fastener and a male fastener, the female fastener and the male fastener are unfolded to work cooperatively in a plug-in manner, a first magnet is arranged in the middle of the bottom of the female fastener, a movable piece is arranged in the middle of the bottom of the male fastener, and a second magnet is arranged in the middle of the movable piece. The female fastener and the male fastener are installed and fixed through the movable piece, the tail portion of the female fastener and the tail portion of the male fastener are respectively provided with a bandage hole, the female fastener and the male fastener are buckled together through the movable piece, buckling work is carried out through an inserting and locking mechanism, and the buckle is prevented from being opened accidentally. The locking work firmness degree of the buckle is further improved through the design of the movable piece clamping hook, the automatic inserting and buckling capacity is achieved through the design of the magnet, and when the inserting part and the inserting end are buckled, the effects of rapidly positioning and reinforcing the whole workpiece, preventing the buckle from being separated and preventing the buckle from shaking up and down and left and right are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of buckles, in particular to a buckle with a self-locking structure. Background Art

[0002] In the field of clothing and luggage, buckles are an important connecting and fixing element. They have various types and functions. The buckles used in daily life include press buckles, magnetic buckles, plug buckles, and hook buckles. They are usually used in various designs. Different types of buckles can be selected according to different needs to meet different design and usage requirements.

[0003] In view of the current buckle technology field, this application has formulated corresponding solutions to the following existing problems:

[0004] The existing buckle locking mechanism is relatively simple, and usually adopts traditional buckling work for fixing, which can meet general daily needs. However, when facing the use scenario with high intensity and subjected to large impact force, the strength of the traditional buckle cannot meet the use requirements, and the service life of the buckle structure is easily affected by the force. When the buckle is used for a long time, it will cause wear and tear, resulting in loose locking, which makes the buckle easy to loosen, and even cause the buckle to slip, reducing the user experience of the buckle. Utility Model Content

[0005] The main purpose of the utility model is to overcome the deficiencies of the prior art and provide a buckle with a self-locking structure.

[0006] The utility model is implemented by the following technical scheme: a buckle with a self-locking structure, the structure of which includes a female buckle and a male buckle, the female buckle and the male buckle are plugged in to cooperate with each other, a first magnet is provided in the middle of the bottom of the female buckle, a movable sheet is provided in the middle of the bottom of the male buckle, a second magnet is provided in the middle of the movable sheet, the female buckle and the male buckle are installed and fixed by the movable sheet, and the tails of the female buckle and the male buckle are both provided with strap holes;

[0007] The female fastener is provided with a mounting portion in the middle, and plug-in portions are provided on both sides of the outer side of the mounting portion;

[0008] A mating portion is provided in the middle of the male fastener, a mounting platform is provided in the middle of the mating portion, the movable sheet is hingedly mounted on the mounting platform, plug-in ends are provided on both sides of the mating portion, and the male fastener is plugged into the plug-in portion provided in the female fastener through the plug-in ends.

[0009] Furthermore, a limiting boss is provided in the middle of the mounting part, guide grooves are provided on both sides of the limiting boss, a guide platform is provided on the upper surface of one end of the limiting boss, the guide platform is lower than the upper surface of the limiting boss, a first guide slope is provided at the connection between the guide platform and the upper surface of the limiting boss, a guide ramp is provided on the upper surface of the other end of the limiting boss, a hook groove is provided below the guide ramp, a first mounting hole is provided at the bottom of the mounting part, and a positioning groove is provided at the bottom of the mounting part.

[0010] Furthermore, the plug-in part is in a step shape, the vertical surface of the upper tail of the plug-in part is inclined, a limiting groove is provided on the upper surface of the step of the plug-in part, a card-connecting cavity is provided at the rear end of the plug-in part, the bottom of the card-connecting cavity is hollow, and the bottom end of the inside of the card-connecting cavity is inclined.

[0011] Furthermore, the matching portion is arranged in a concave notch, the mounting platform is arranged at the upper end of the middle part of the matching portion, and a locking protrusion is arranged at the bottom of the middle part of the matching portion.

[0012] Furthermore, hinged columns are provided on both sides of the mounting platform, a second guide slope is provided at the lower end of the mounting platform, and the middle portion of the mounting platform is hollow.

[0013] Furthermore, the plug-in end is in a step shape, the outer end surface of the plug-in end and the vertical surface of the tail of the plug-in end are both inclined, and the lower end of the plug-in end is provided with a third guide slope.

[0014] Furthermore, an articulated arm extends from one end of the movable piece, a hinge hole is provided in the middle of one end of the articulated arm, a yield slope is provided at the upper end of the articulated arm, a swinging area is formed in the middle of the articulated arms on both sides of the movable piece, and the articulated arms provided on both sides of the movable piece extend limit plates downward to form a limit groove below the articulated arm, a protrusion with a pull rope hole extends from the upper surface of the other end of the movable piece, a hook is provided on the inner side of the baffle below the other end of the movable piece, and a second mounting hole is provided in the middle of the bottom of the movable piece.

[0015] Furthermore, the inclined surfaces provided in the plug-in end and the plug-in portion have the same inclination direction and slope, and are both inclined inwards.

[0016] Furthermore, the first magnet provided on the female fastener and the second magnet provided on the movable plate have the same magnetic pole installation direction.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the female fastener and the male fastener of the utility model are fastened together through a movable piece, and a plug-in and locking mechanism is used to carry out the fastening work, thereby preventing the buckle from opening accidentally, so that the buckle can be used in work scenarios with high intensity of use and high force. The design of the movable piece hook further increases the firmness of the locking work of the buckle, and can reduce the wear of the movable piece caused by long-term and frequent use. The female fastener and the male fastener adopt a plug-in matching method to improve the stability of the buckle matching work, and the ability of automatic plug-in and fastening is realized through the design of magnets. When the plug-in part and the plug-in end are fastened, they play a role in quickly positioning and reinforcing the entire workpiece, preventing the fasteners from separating and shaking up, down, left and right. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the utility model in which the integral movable piece is in a tilted state.

[0021] Figure 3 It is a schematic diagram of the internal structure of the male fastener of the utility model.

[0022] Figure 4 This is a schematic diagram of the separation structure of the male fastener of the utility model from the first perspective.

[0023] Figure 5 This is a schematic diagram of the separation structure of the male fastener of the utility model from a second viewing angle.

[0024] Figure 6 It is a schematic diagram of the plane separation structure of the female fastener of the utility model.

[0025] In the figure: female fastener 1, male fastener 2, movable piece 3, first magnet 6, strap hole 5, second magnet 4, mounting portion 11, plug-in portion 12, matching portion 21, mounting platform 22, plug-in end 23, positioning protrusion 24, hinged arm 31, hinged hole 32, yielding slope 33, limiting groove 34, rope hole 35, hook 36, second mounting hole 37, limiting piece 38, limiting protrusion 111, guide groove 112, guide platform 113, first guide slope 114, guide slope 115, hook groove 116, first mounting hole 117, positioning groove 118, limiting groove 121, clamping cavity 122, hinged column 221, second guide slope 222, third guide slope 231, matching step 232. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 The utility model provides a buckle technical solution with a self-locking structure: a buckle with a self-locking structure, the structure of which includes a female buckle 1 and a male buckle 2, the female buckle 1 and the male buckle 2 are plugged together to work, a first magnet 6 is provided in the middle of the bottom of the female buckle 1, a movable sheet 3 is provided in the middle of the bottom of the male buckle 2, a second magnet 4 is provided in the middle of the movable sheet 3, the female buckle 1 and the male buckle 2 are installed and fixed by the movable sheet 3, and the tails of the female buckle 1 and the male buckle 2 are both provided with a strap hole 5;

[0028] The female fastener 1 is provided with a mounting portion 11 in the middle, and plug-in portions 12 are provided on both sides of the outer side of the mounting portion 11;

[0029] A mating portion 21 is provided in the middle of the male fastener 2, and a mounting platform 22 is provided in the middle of the mating portion 21. The movable sheet 3 is hingedly mounted on the mounting platform 22. The movable sheet 3 can be flipped up to a certain extent, and when flipped up, it is convenient for the female fastener 1 and the male fastener 2 to start plugging and connecting. Insertion ends 23 are provided on both sides of the mating portion 21, and the male fastener 2 is plugged into the plugging portion 12 of the female fastener 1 through the insertion ends 23. The movable sheet 3 is magnetically matched with the first magnet 6 in the female fastener 1 through the second magnet 4 provided thereon, and the position of the movable sheet 3 is limited to drop, and the matching work of the male fastener 2 and the female fastener 1 is fixed through the movable sheet 3.

[0030] Preferably, a limiting boss 111 is provided in the middle of the mounting portion 11, guide grooves 112 are provided on both sides of the limiting boss 111, a guide platform 113 is provided on the upper surface of one end of the limiting boss 111, the guide platform 113 is lower than the upper surface of the limiting boss 111, and a first guide slope 114 is provided at the junction of the guide platform 113 and the upper surface of the limiting boss 111, the first guide slope 114 can facilitate the sliding cooperation of the mounting platform 22, and the upper surface of the limiting boss 111 is provided at the other end. There is a guide ramp 115, the width of which is smaller than the width of the limiting boss 111, which can provide a placement space for the movable piece 3. A hook groove is provided below the guide ramp 115, and the hook groove can provide the movable piece 3 with a hook 36 to fix the plug-in cooperation between the female fastener 1 and the male fastener 2. A first mounting hole 117 is provided at the bottom of the mounting portion 11, and the first mounting hole 117 can be used for the installation of the magnet. A positioning groove 118 is provided at the bottom of the mounting portion 11.

[0031] Preferably, the plug-in portion 12 is in a step shape, the vertical surface of the upper tail of the plug-in portion 12 is inclined, a limiting groove 121 is provided on the upper surface of the step of the plug-in portion 12, a snap-in cavity 122 is provided at the rear end of the plug-in portion 12, the bottom of the snap-in cavity 122 is hollow, and the bottom end of the inner part of the snap-in cavity 122 is inclined.

[0032] Preferably, the mating portion 21 is arranged in a concave notch, the mounting platform 22 is arranged at the upper end of the middle part of the mating portion 21, and a locking protrusion 24 is provided at the bottom of the middle part of the mating portion 21. The locking protrusion 24 has a certain distance from the lower surface of the mounting platform 22, and can be inserted into the locking groove 118 provided for the female fastener 1, thereby preventing the female fastener 1 and the male fastener 2 from separating up and down after being plugged in, and improving the stability after the plug-in work, preventing shaking, and playing a certain anti-shake effect.

[0033] Preferably, hinge columns 221 are provided on both sides of the mounting platform 22, and the hinge columns 221 can be used for hinged installation of the hinge holes 32 provided on the movable sheet 3, and a second guide slope 222 is provided at the lower end of the mounting platform 22, and the second guide slope 222 can facilitate the cooperation between the male fastener 2 and the limiting boss 111 provided on the female fastener 1, and the middle part of the mounting platform 22 is hollow;

[0034] Preferably, the plug-in end 23 is in a step shape, and the outer end surface of the plug-in end 23 and the vertical surface of the tail of the plug-in end 23 are both inclined. The lower end of the plug-in end 23 is provided with a third guide slope 231, and the third guide slope 231 can facilitate the plug-in end 23 to cooperate with the limiting groove 121 provided in the female fastener. A matching step 232 is provided below the plug-in end 23, and the matching step 232 can cooperate with the limiting groove 121 in the plug-in part 12 provided in the female fastener 1, so that the plug-in end 23 can be embedded in the limiting groove 121 through the matching step 232, and the limiting groove 121 performs laterally limiting work on the plug-in end 23, thereby ensuring that the plug-in end 23 and the plug-in part 12 can slide.

[0035] Preferably, an articulated arm 31 extends from one end of the movable piece 3, and an articulated hole 32 is provided in the middle of one end of the articulated arm 31. A yield slope 33 is provided at the upper end of the articulated arm 31, and the yield slope 33 can allow the movable piece 3 to obtain a larger swing angle, and a swing zone is formed in the middle of the articulated arms 31 on both sides of the movable piece 3, and the swing zone provides a swing space for the movable piece 3. The articulated arms 31 on both sides of the movable piece 3 extend downwardly to extend a limit piece 38, and the limit piece 38 can be installed in the guide groove 112 to assist the female fastener 1 and the male fastener 2 to complete the plug-in action, reduce the jitter during the cooperation, improve the cooperation stability, and form a limit groove 34 below the articulated arm 31, and the limit groove 34 can cooperate with the limit boss 111 provided on the female fastener 1. The movable piece 3 is operated so that it can slide along the limiting boss 111. A bulge with a rope hole 35 extends from the upper surface of the other end of the movable piece 3. A hook 36 is provided on the inner side of the baffle below the other end of the movable piece 3. A notch is provided on the inner side of the lower end of the hook 36, which can cooperate with the guide ramp 115 provided above the movable piece 3 and the limiting boss 111 to facilitate the movable piece 3 to swing downward. The hook 36 can cooperate with the hook groove provided on the female fastener 1. The movable piece 3 in a horizontal state will be fixed to the female fastener 1 by the hook 36, and the plug-in position of the female fastener 1 and the male fastener 2 will be fixed. A second mounting hole 37 is provided in the middle of the bottom of the movable piece 3, and the second mounting hole 37 can be used for the installation of the second magnet 4.

[0036] Preferably, the plug-in end 23 and the inclined surface provided in the plug-in part 12 have the same inclination direction and inclination, and are both inclined inward. The female fastener 1 and the male fastener 2 cooperate with each other through the plug-in part 12 and the inclined surface provided in the plug-in part 12. When the female fastener 1 and the male fastener 2 are plugged in, a plug-in guide work is performed, so that the female fastener 1 and the male fastener 2 are always on the same center line, thereby improving the stability during the plug-in work.

[0037] Preferably, the first magnet 6 provided on the female fastener 1 and the second magnet 4 provided on the movable plate 3 have the same magnetic pole installation direction.

[0038] The female fastener 1, the male fastener 2, and the movable piece 3 are provided with a plurality of hollow parts, which can ensure the strength of the structural parts while making the structural parts as a whole lighter, reducing the weight of the product, significantly reducing the mold opening cost of the structural parts, and saving raw materials.

[0039] The working principle of the buckle with a self-locking structure in the utility model:

[0040] When the buckle with a self-locking structure is used, the male fastener with the movable sheet is brought close to the installation part in the female fastener, and the movable sheet is aligned with the installation part of the female fastener to start the plug-in work. The female fastener and the male fastener are pulled to each other by the suction force between the magnets, and the plug-in end of the male fastener is inserted into the plug-in part of the female fastener. Under the action of the suction force of the magnet, the plug-in end will eventually be fully matched with the plug-in part. When the plug-in end is fully matched with the plug-in part, the movable sheet will be matched with the male fastener under the action of the suction force of the magnet, and the movable sheet will make a click sound to remind the operator that the movable sheet and the female fastener are matched together. At this time, the locking work is completed by the plug-in action of the movable sheet on the female fastener and the male fastener;

[0041] When the movable sheet with the second magnet approaches the mounting portion, the limiting groove formed by the hinged arm of the movable sheet is above the limiting boss, and the limiting boss and the guide groove cooperate to start sliding work. Since the second magnet and the first magnet are in a misaligned state during the cooperation process, when the movable sheet approaches the mounting portion, the movable sheet will automatically tilt up due to the principle of magnet repulsion of like poles. When the movable sheet moves to the middle point of the mounting portion, it will be immediately adsorbed. The hook at the lower end of the movable sheet will contact the upper surface of the limiting boss at this time. Under the continuous pulling of the magnets, the movable sheet will come into contact with the guide ramp. When the second magnet provided on the movable sheet is above the middle part of the first magnet provided on the female fastener, the suction force of the magnet is the largest at this time, which will pull the movable sheet downward, and the hook provided on the movable sheet will be stuck in the hook groove provided on the female fastener with a click. The fixing work of the movable sheet and the female fastener is completed.

[0042] When the movable sheet cooperates with the mounting portion of the female fastener, the bosses on both sides of the mounting portion of the female fastener will enter into the matching portion of the male fastener, and the female fastener will be initially limited by the matching portion, and then the female fastener and the male fastener will gradually approach each other, and the plug-in end of the male fastener will be plugged and matched with the plug-in portion of the female fastener. With the continuous pulling of the suction force between the magnets, the plug-in end and the plug-in portion are fully matched together, and the positioning protrusion under the male fastener will be inserted into the positioning groove under the female fastener, so as to enhance the stability of the plug-in work between the male fastener and the female fastener. At this time, the plug-in and matching work between the female fastener and the male fastener is completed;

[0043] When the male fastener and the female fastener need to be separated, the locking state of the male fastener and the female fastener is released by lifting the movable piece, and then the movable piece is pulled outward to complete the separation of the male fastener and the female fastener.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A buckle with a self-locking structure, comprising a female buckle (1) and a male buckle (2), characterized in that: The female fastener (1) and the male fastener (2) cooperate with each other in a plug-in manner; a first magnet (6) is provided at the middle of the bottom of the female fastener (1); a movable sheet (3) is provided at the middle of the bottom of the male fastener (2); a second magnet (4) is provided at the middle of the movable sheet (3); the female fastener (1) and the male fastener (2) are installed and fixed via the movable sheet (3); and strap holes (5) are provided at the tails of the female fastener (1) and the male fastener (2); The female fastener (1) is provided with a mounting portion (11) in the middle, and plug-in portions (12) are provided on both sides of the outer side of the mounting portion (11); The male fastener (2) is provided with a matching portion (21) in the middle, a mounting platform (22) is provided in the middle of the matching portion (21), the movable sheet (3) is hingedly mounted on the mounting platform (22), plug-in ends (23) are provided on both sides of the matching portion (21), and the male fastener (2) is plugged into the plug-in portion (12) provided on the female fastener (1) through the plug-in ends (23).

2. The buckle with a self-locking structure according to claim 1, characterized in that: A limiting boss (111) is provided in the middle of the mounting portion (11), guide grooves (112) are provided on both sides of the limiting boss (111), a guide platform (113) is provided on the upper surface of one end of the limiting boss (111), the guide platform (113) is lower than the upper surface of the limiting boss (111), a first guide slope (114) is provided at the junction of the guide platform (113) and the upper surface of the limiting boss (111), a guide ramp (115) is provided on the upper surface of the other end of the limiting boss (111), a hook groove is provided below the guide ramp (115), a first mounting hole (117) is provided at the bottom of the mounting portion (11), and a locking groove (118) is provided at the bottom of the mounting portion (11).

3. The buckle with a self-locking structure according to claim 1, characterized in that: The plug-in portion (12) is in a step shape, the vertical surface of the upper end of the plug-in portion (12) is inclined, a limiting groove (121) is provided on the upper surface of the step of the plug-in portion (12), a clamping cavity (122) is provided at the rear end of the plug-in portion (12), the lower part of the clamping cavity (122) is hollow, and the bottom end of the inner part of the clamping cavity (122) is inclined.

4. The buckle with a self-locking structure according to claim 1, characterized in that: The matching portion (21) is arranged in a concave notch, the mounting platform (22) is arranged at the upper end of the middle part of the matching portion (21), and a positioning protrusion (24) is arranged at the bottom of the middle part of the matching portion (21).

5. The buckle with a self-locking structure according to claim 1, characterized in that: Hinge columns (221) are provided on both sides of the mounting platform (22), a second guide slope (222) is provided at the lower end of the mounting platform (22), and the middle portion of the mounting platform (22) is hollow.

6. The buckle with a self-locking structure according to claim 1, characterized in that: The plug end (23) is in a step shape, the outer end surface of the plug end (23) and the vertical surface of the rear of the plug end (23) are both arranged in an inclined plane, and the lower end of the plug end (23) is provided with a third guide slope (231).

7. The buckle with a self-locking structure according to claim 1, characterized in that: A hinge arm (31) extends from one end of the movable sheet (3), a hinge hole (32) is provided in the middle of one end of the hinge arm (31), a yield slope (33) is provided at the upper end of the hinge arm (31), a swinging area is formed in the middle of the hinge arms (31) on both sides of the movable sheet (3), limiting sheets (38) are extended downward from the hinge arms (31) provided on both sides of the movable sheet (3), so that a limiting groove (34) is formed below the hinge arm (31), a convex block with a drawstring hole (35) is extended from the upper surface of the other end of the movable sheet (3), a hook (36) is provided on the inner side of the baffle below the other end of the movable sheet (3), and a second mounting hole (37) is provided in the middle of the bottom of the movable sheet (3).

8. The buckle with a self-locking structure according to claim 1, characterized in that: The inclined surfaces provided in the plug-in end (23) and the plug-in portion (12) have the same inclination direction and slope, and are both inclined inwards.

9. The buckle with a self-locking structure according to claim 1, characterized in that: The first magnet (6) provided on the female fastener (1) and the second magnet (4) provided on the movable plate (3) have the same magnetic pole installation direction.

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