CN216438655U - Buckle tool - Google Patents

Abstract

The utility model relates to a buckle, comprising: the male fastener comprises a main body part and two elastic arms arranged on one side of the main body part at intervals, wherein a hollowed pressing part is formed in the middle of each elastic arm, and a clamping block is further arranged at the tail end of each elastic arm and provided with a clamping shoulder facing the main body part; female fastener has and accepts the joint groove of public fastener, female fastener's both sides still have with the shrinkage pool that the joint groove is linked together, part press the splenium to be located within the shrinkage pool, the joint groove is including being used for holding the accepting groove of elastic arm with hold the groove of dodging of block, female fastener is still including being located the accepting groove with it is protruding to dodge the block between the groove, the block protruding include with the joint shoulder selectively offsets the block wall.

Description

Buckle tool

Technical Field

The utility model relates to a buckle.

Background

Buckles are widely used in various articles of daily use (such as backpacks, children's vehicles, etc.) as main control devices for fastening or separating fastening belts. The conventional buckle is generally composed of a male buckle and a female buckle, which are opposite to each other, and the male buckle and the female buckle are connected to two opposite ends of the fastening band, respectively. The connection or the disconnection of the whole lace can be controlled by the mutual buckling connection of the male fastener and the female fastener or the pressing release of a preset pulling control piece. However, the buckle on the market is heavy in shape and not very convenient to use.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a buckle with a light structure and convenient operation.

A buckle, comprising:

the male fastener comprises a main body part and two elastic arms arranged on one side of the main body part at intervals, wherein a hollowed pressing part is formed in the middle of each elastic arm, and a clamping block is further arranged at the tail end of each elastic arm and provided with a clamping shoulder facing the main body part;

female fastener has and accepts the joint groove of public fastener, female fastener's both sides still have with the shrinkage pool that the joint groove is linked together, part press the splenium to be located within the shrinkage pool, the joint groove is including being used for holding the accepting groove of elastic arm with hold the groove of dodging of block, female fastener is still including being located the accepting groove with it is protruding to dodge the block between the groove, the block protruding include with the joint shoulder selectively offsets the block wall.

The hollow pressing part is adopted in the buckle, compared with the traditional solid pressing part, the mechanical strength of the pressing part is ensured by forming the hollow pressing part, the material of the pressing part is reduced, the weight of the whole buckle is reduced, and the convenience of operation is guaranteed.

In one embodiment, a step portion is formed between the pressing portion and the locking block, and a passage allowing the step portion to pass through is formed on the engaging protrusion.

In one embodiment, the avoiding groove includes a first position away from the engaging projection and a second position close to the engaging projection, and the locking piece is movable back and forth between the first position and the second position.

In one embodiment, the surface of the female fastener is further provided with a window communicated with the avoiding groove.

In one embodiment, the surface of the female fastener is further provided with a direction indicating groove adjacent to the window.

In one embodiment, the male fastener further comprises two positioning rods located between the two elastic arms, and a positioning track capable of being inserted between the two positioning rods is arranged in the clamping groove of the female fastener.

In one embodiment, the two positioning rods are connected with the main body part and are arranged in parallel at intervals.

In one embodiment, the male fastener further comprises a first reinforcing rib connected between the main body portion and the positioning rod.

In one embodiment, the male fastener further comprises a second reinforcing rib connected between the end of the elastic arm and the first reinforcing rib.

In one embodiment, a clamping table is arranged at the edge of the pressing part, and a clamping edge corresponding to the clamping table is arranged at the edge of the concave hole.

In one embodiment, the main body of the male fastener is provided with a first through hole for the belt to pass through, and the female fastener is provided with a second through hole for the belt to pass through at a position far away from the clamping groove.

Drawings

Fig. 1 is a perspective assembly view of a buckle according to an embodiment;

FIG. 2 is a perspective assembly view of the buckle shown in FIG. 1 at another angle;

FIG. 3 is an exploded perspective view of the buckle of FIG. 2;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 5 is a sectional view taken along line B-B in fig. 2.

The reference numbers illustrate:

buckle 100 male fastener 10 female fastener 20 body portion 12 resilient arm 14

First through hole 122, pressing part 142, through hole 1422, and locking block 144, step 146

Clamping shoulder 148 detent lever 16 guide channel 162 first rib 164 second rib 166

Clamping groove 21, second through hole 22, concave hole 23, accommodating groove 24 and avoiding groove 25

Channel 262 and 264 of engaging projection 26 for positioning first position 252 of track 27

Window 28 direction indicating slot 29 for second position 254

Detailed Description

The buckle 100 according to an embodiment may be applied to infant equipment (e.g., a stroller, a high chair, a car seat, or a baby bed) having a safety belt adjusting device to stably seat an infant in the infant equipment. Of course, the buckle 100 disclosed herein can be applied to any other equipment that needs to have a safety belt adjusting device.

Referring to fig. 1-3, the buckle 100 mainly includes a male buckle 10 and a female buckle 20 that can be engaged with each other. The male fastener 10 includes a main body portion 12 and two resilient arms 14. The main body 12 is substantially "japanese" shaped, and has a first through hole 122 for passing the tape. Two resilient arms 14 extend from one end of the main body 12, and the two resilient arms 14 are symmetrically and spaced apart. The elastic arms 14 are formed by injection molding of plastic having elasticity, so that the two elastic arms 14 can be elastically deformed by an external force.

Specifically, referring to fig. 3, the elastic arm 14 includes a pressing portion 142 located at a middle portion thereof. The pressing portion 142 has a convex arc surface to facilitate pressing thereof by a finger. In this embodiment, the pressing portion 142 has a hollow structure, that is, a through hole 1422 is formed in the middle of the pressing portion 142. Compare with traditional solid pressing portion, pressing portion 142 through forming the fretwork, guaranteed on the one hand and pressed the mechanical strength of portion 142, on the other hand has reduced the material of pressing portion 142, has reduced the weight of pressing portion 142, has practiced thrift the cost, has improved the convenience of operation. The distal end of the resilient arm 14 is also provided with a catch 144. A step 146 is formed between the pressing portion 142 and the locking piece 144. In this embodiment, the thickness of the pressing portion 142 is substantially the same as that of the locking piece 144, and the thickness of the step portion 146 is significantly smaller than that of the pressing portion 142 or the locking piece 144, so that a locking shoulder 148 facing the main body 12 is formed between the locking piece 144 and the step portion 146. In this embodiment, the front and back surfaces of the elastic arm 14 are formed with step portions 146, so that the front and back surfaces of the clamping block 144 are provided with clamping shoulders 148. It is understood that catch shoulder 148 may be provided on only one surface of catch block 144.

With continued reference to fig. 3, the male buckle 10 further includes two positioning rods 16 located between the two elastic arms 14. Two locating rods 16 extend outwardly from the middle of the body portion 12, and the two locating rods 16 are arranged in parallel and spaced apart. An elongated guide channel 162 is formed between the two positioning rods 16 for mating with the internal structure of the female fastener 20. The guide channel 162 formed between the two locating rods 16 can further reduce material, weight and cost as compared to a conventional single solid guide post. In order to enhance the elasticity of the elastic arm 14 and to avoid fatigue fracture of the root of the elastic arm 14 due to repeated deformation, a first rib 164 is formed between one side of the body 12 and the middle portion of the positioning rod 16. The first reinforcing rib 164 can form a structure similar to a triangle together with the main body 12 and the positioning rod 16, so that the structural stability and the compressive strength are improved. Further, a second reinforcing bead 166 is formed between the distal end of the elastic arm 14 and the middle portion of the first reinforcing bead 164. This design can transfer the external force applied to the pressing portion 142 of the elastic arm 14 to the positioning rod 16 and the main body portion 12 through the first reinforcing rib 164 and the second reinforcing rib 166, so as to reduce the load moment of the elastic arm 14, and at the same time, the first reinforcing rib 164 and the second reinforcing rib 166 can provide enough elastic supporting force for the elastic arm 14, thereby ensuring that the elastic arm 14 can be rapidly restored to the original shape after the external force is removed.

Referring to fig. 3, the female fastener 20 is substantially annular, and has a fastening groove 21 for accommodating the male fastener 10 at one end thereof, and a second through hole 22 for passing the belt body at the other end thereof away from the fastening groove 21. The opening of the locking groove 21 is larger than the distance between the two locking blocks 144 and slightly smaller than the width of the two pressing portions 142, so that the two elastic arms 14 are elastically deformed to approach each other at the initial stage of insertion into the locking groove 21. The female fastener 20 also has concave holes 23 on both sides thereof communicating with the engaging grooves 21. When the two elastic arms 14 are inserted to a certain depth, the two elastic arms 14 are no longer constrained by the opening and expand outwards, and part of the pressing portion 142 can be located in the concave hole 23 and exposed outside, so that the pressing portion can be pressed by hands conveniently.

Referring to fig. 4 to 5, the locking groove 21 includes a receiving groove 24 for receiving the elastic arm 14 and an avoiding groove 25 for receiving the locking piece 144. The upper and lower inner surfaces of the female snap 20 are provided with engaging protrusions 26 located between the receiving groove 24 and the escape groove 25, respectively, at positions close to the edges. The two engaging protrusions 26 are spaced apart from each other, and a passage 262 allowing the step portion 146 to pass therethrough is formed therebetween. The width of the engaging projection 26 is substantially the same as the width of the engaging piece 144. The engaging projection 26 also has an engaging wall 264 facing the second through hole 22. Engagement wall 264 can selectively abut engagement shoulder 148 of engagement block 144. The inner surface of the female fastener member 20 is also provided with a positioning rail 27 extending in the longitudinal direction. The positioning rail 27 can be inserted into the guide channel 162 between the two positioning rods 16, so as to guide the male fastener 10 to be more precisely inserted into the catching groove 21 of the female fastener 20. The width of the escape slot 25 is greater than the width of the catch piece 144. As shown in fig. 5, escape slot 25 includes a first position 252 adjacent to positioning track 27 and a second position 254 adjacent to engaging projection 26, and catch piece 144 is movable back and forth between first position 252 and second position 254. As shown in fig. 3, the upper surface of the female buckle 20 is further provided with a window 28 communicating with the escape groove 25, so that a user can observe the specific position of the locking block 144 conveniently. The upper surface of the female fastener 20 is further provided with direction indicating grooves 29 near the two windows 28.

The method of using the buckle 100 of the present embodiment will be briefly described.

When the male fastener 10 needs to be engaged with the female fastener 20, the two elastic arms 14 of the male fastener 10 can be inserted into the engaging groove 21 of the female fastener 20. Under the action of the narrower opening of the snap-in groove 21, the two spring arms 14 will be slightly bent inward. The positioning rail 27 is then inserted into the guide channel 162 between the two positioning rods 16, so as to guide the two elastic arms 14 into the receiving slots 24 at a precise angle. When the engagement piece 144 enters the escape groove 25, the outer edge of the engagement piece 144 first contacts the inner edge of the engaging projection 26, so that the engagement piece 144 enters the first position 252 adjacent to the positioning rail 27. After the stopping block 144 completely passes over the engaging protrusions 26, under the resilient force of the elastic arms 14, the two elastic arms 14 begin to expand outward, so that the pressing portion 142 gradually enters the concave hole 23 to be exposed, and the stopping block 144 is further caused to move from the first position 252 to the second position 254, and at this time, the step portion 146 gradually enters the passage 262 between the two engaging protrusions 26. When the catch piece 144 contacts the edge of the escape slot 25, the catch piece 144 rests in the second position 254. At this time, the engagement shoulder 148 of the engagement piece 144 abuts against the engagement wall 264 of the engagement projection 26, and the movement of the engagement piece 144 in the direction approaching the body 12 is prevented, that is, the male clip 10 and the female clip 20 are fixed to each other. The user can observe through window 28 that catch piece 144 has moved into second position 254 to further confirm the locked condition.

When the male fastener 10 needs to be pulled out of the female fastener 20, the user can apply force to the two pressing portions 142 exposed at the concave hole 23 with two fingers according to the guidance of the direction indicating groove 29, so that the two elastic arms 14 are elastically deformed to approach each other. During this process, step 146 slides out of channel 262 and catch piece 144 returns from second position 254 to first position 252, thereby disengaging catch shoulder 148 of catch piece 144 from catch wall 264 of catch projection 26. After the stop block 144 passes around the engaging protrusion 26, a backward pulling force is applied to the pressing portion 142, so that the two elastic arms 14 slide out of the receiving slots 24 without any obstruction, thereby separating the male fastening member 10 from the female fastening member 20.

In another embodiment, a locking platform may be disposed at the edge of the pressing portion 142, and a corresponding engaging edge may be disposed at the edge of the concave hole 23, so as to form a double-locking point, effectively prevent the fastener 100 from failing due to a fracture between the locking block 144 and the engaging protrusion 26 caused by a large pulling force, and increase the safety factor of the fastener 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (9)

1. A buckle, comprising:

the male fastener comprises a main body part and two elastic arms arranged on one side of the main body part at intervals, wherein a hollowed pressing part is formed in the middle of each elastic arm, and a clamping block is further arranged at the tail end of each elastic arm and provided with a clamping shoulder facing the main body part;

female fastener has and accepts male fastener's joint groove, female fastener's both sides still have with the shrinkage pool that the joint groove is linked together, part press the splenium to be located within the shrinkage pool, the joint groove is including being used for holding the accepting groove of elastic arm with hold the groove of dodging of block, female fastener is still including being located the accepting groove with it is protruding to dodge the block between the groove, the block protruding include with the joint shoulder selectively offsets the block wall, female fastener's surface still seted up with dodge the window that the groove communicates mutually.

2. The buckle according to claim 1, wherein a step portion is formed between the pressing portion and the locking block, and the engaging protrusion has a passage formed thereon for allowing the step portion to pass therethrough.

3. The buckle of claim 1, wherein the avoidance slot includes a first position distal from the engaging projection and a second position proximal to the engaging projection, the block being movable back and forth between the first position and the second position.

4. The buckle of claim 1, wherein the surface of the female buckle member is further provided with a direction indicating groove adjacent to the window.

5. The buckle of claim 1, wherein the male buckle further comprises two positioning rods disposed between the two elastic arms, and a positioning rail capable of being inserted between the two positioning rods is disposed in the engaging groove of the female buckle.

6. The buckle of claim 5, wherein the two positioning rods are connected to the main body and are spaced apart from each other in parallel.

7. The fastener of claim 5, wherein the male fastener further comprises a first reinforcing rib connected between the main body portion and the positioning rod.

8. The buckle of claim 7 wherein said male buckle further comprises a second reinforcement rib connected between said distal end of said spring arm and said first reinforcement rib.

9. The buckle according to claim 1, wherein a clamping table is disposed at an edge of the pressing portion, and a clamping edge corresponding to the clamping table is disposed at an edge of the concave hole.

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