CN220268108U - Buckle - Google Patents

Abstract

The utility model relates to the field of automobile parts, in particular to a buckle, which comprises a body, wherein a clamping part is fixedly arranged on the body, a plurality of rows of clamping teeth are fixedly arranged on the clamping part, the plurality of rows of clamping teeth are vertically distributed, and the tips of at least two clamping teeth in the plurality of rows of clamping teeth are positioned on the same vertical straight line. The buckle of this scheme block is more stable, is difficult for coming off from the base.

Description

Buckle

Technical Field

The utility model relates to the field of automobile parts, in particular to a buckle.

Background

After the automobile interior trim part is assembled, the automobile interior trim part needs to be fixed by using the metal buckle, so that the assembly firmness of the automobile interior trim part is improved.

The latch on the present buckle is single row latch, presses the buckle to the base, and the latch is blocked on the base under the action of metal elastic force to make the block of buckle and base connect.

However, the existing latch is a single row, so that the stability of the engagement between the latch and the base is limited, and the latch is easily separated from the base, thereby causing instability of the engagement.

Disclosure of Invention

The utility model aims to provide a buckle so as to improve the stability of the buckling of the buckle.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a buckle, includes the body, fixedly is equipped with joint portion on the body, fixedly is equipped with the multirow latch on the joint portion, multirow latch vertical distribution, and the pointed end position that has two at least latches in the multirow latch is located on vertical same straight line.

The principle and the advantages of the scheme are as follows: compared with the buckles of the prior art, the buckle of this scheme is multi-row, and the multirow is more than or equal to 2 rows, compares the latch like this for single row, has increased the row number of latch, installs the back on the base when the buckle, and multirow card tooth card is on the base to can increase the drawing force, improve the stability of buckle block, be difficult for droing after the buckle is installed.

The pointed end parts of at least two latches in the multiple rows of latches are positioned on the same vertical straight line, so that the stress points of the pointed end parts of the latches positioned on the same vertical straight line are concentrated on the same vertical straight line, compared with the dispersion of the latches, the pointed end parts of the latches are not concentrated on the same straight line, and the latches can counteract the external force of the buckle without providing larger force, thereby improving the stability of the buckle.

Preferably, as a modification, the number of the engaging portions is plural. Therefore, the number of the clamping parts is multiple, and compared with one clamping part, the stability of clamping is higher.

Preferably, as an improvement, the number of the clamping parts is two, the two clamping parts are oppositely arranged, and a clamping gap is formed between the two clamping parts. Therefore, after the buckle is mounted on the base, the base is inserted into the clamping gap, and the two clamping joints are respectively positioned at two sides of the base, so that the two sides of the base can be acted by the action force of the clamping teeth, and the buckle clamping is more stable.

Preferably, as an improvement, a drag reduction gap is arranged between the latch and the clamping part, an opening part of the drag reduction gap is arranged between the end part of the latch and the clamping part, and the inner wall of the drag reduction gap far away from the opening part is arc-shaped.

Therefore, due to the fact that a drag reduction gap exists between the clamping tooth and the clamping part, the clamping tooth and the clamping part cannot be closely attached to each other, friction between the clamping tooth and the clamping part is reduced, assembly resistance is reduced, elasticity of the clamping tooth is improved, and clamping effect is guaranteed. Because the inner wall of the drag reduction gap far away from the opening is arc-shaped, the part of the latch far away from the tip and the clamping part are smooth and excessive, and the part of the drag reduction gap far away from the opening is not provided with the tip, so that friction between the latch and the clamping part is reduced.

Preferably, as a modification, the drag reducing gap is R-shaped. The side of joint portion is sharp, and the interior side of latch is the slash, and the position that latch and joint portion connect is the arc, and whole drag reduction clearance is similar to R shape like this.

Preferably, as a modification, the vertical distance from the center of the arc to the tip end of the latch is 1.8-2.2mm. Therefore, compared with the prior art, the length of the latch is increased, the elasticity of the latch is improved, and the risk that the base is crushed by the latch is reduced.

Preferably, as a modification, the lateral distance from the centre of the arc to the sides of the latch is 0.8-1.2mm. Therefore, compared with the prior art, the width of the latch is reduced, the elasticity of the latch is improved, and the risk that the base is crushed by the latch is reduced.

Preferably, as an improvement, the body is provided with a through hole, and the clamping part is opposite to the through hole. Through hole's setting can reduce the material of buckle, reduce cost. Simultaneously, through the through-hole, can look over the chucking cooperation condition of latch and base to judge whether the buckle chucking.

Preferably, as a modification, the number of the latches in each row is two.

Preferably, as a modification, the buckle is made of metal.

Drawings

Fig. 1 is a front view of a buckle.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a left side view of fig. 1, illustrating the width and length of the latch.

Fig. 4 is a graph comparing force analysis of two latches on the same vertical line and two latches not on the same vertical line.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the anti-drag device comprises a body 1, a first latch 2, a second latch 3, a clamping part 4, a drag-drag reduction gap 5, a through hole 6, an arc 7, a straight edge 8 and a bevel edge 9.

An example is substantially as shown in figures 1 to 4 of the accompanying drawings: the utility model provides a buckle, includes metal material's body 1, and the body is the V-arrangement, is equipped with through-hole 6 on the body 1, and the fixed joint portion 4 that is equipped with relatively with through-hole 6 on the body 1, and fixed mode sets up as an organic wholely, and the fixed multirow latch that is equipped with on the joint portion 4 also sets up as an organic wholely. Of course, in other embodiments, the fixing means may be welding. The multiple rows (at least 2 rows) of latches are vertically distributed, and the tips of at least two latches in the multiple rows are positioned on the same straight line in the vertical direction (the vertical direction is the vertical direction of the V-shaped in fig. 1).

Referring to fig. 1, in this embodiment, two clamping portions 4 are provided, the two clamping portions 4 are disposed opposite to each other, a clamping gap is provided between the two clamping portions 4, and teeth on the two clamping portions are opposite to each other. The V-arrangement is constituteed to two joint portions 4, and joint portion 4 is located body 1 inboard, and after the buckle was installed on the base like this, the base was inserted in the centre gripping clearance between two joint portions 4, and the latch on two joint portions 4 is acted on the base to prevent that the buckle from breaking away from on the base. Of course, in other embodiments, the number of the engaging portions 4 may be three, four, five, or the like. The engaging portion 4 located inside the body 1 can be directly observed through the through hole 6.

In this embodiment, the number of rows of teeth on each clamping portion 4 is two, and the number of teeth in each row is two. Two clamping teeth of each row are respectively positioned on two side edges of the clamping part 4, so that the stress of the clamping part 4 and the base is uniform when the clamping part 4 acts on the base. Of course, in other embodiments, the number of rows may be three, four, five, etc., and the number of latches in each row may be one, three, four, etc.

As shown in fig. 2, the tip of the first latch 2 and the tip of the second latch 3 are positioned on the same vertical line in this embodiment. In this embodiment, as shown in the left part of the force analysis diagram in fig. 4, because the tip of the first latch 2 and the tip of the second latch 3 are located on the same vertical line, assuming that the forces provided by the first latch 2 and the second latch 3 are F1 and F2 respectively, the forces provided by the first latch 2 and the second latch are in the same direction (both are vertically downward) and have the same magnitude, the external force received by the buckle is F, and F is vertically upward, the force provided by each latch is F/2 and can be balanced with the external force received by the buckle; when the tips of the first latch 2 and the tips of the second latch 3 are not on the same vertical line, as shown in the force analysis diagram of the right part in fig. 4, it is assumed that the forces provided by the first latch 2 and the second latch 3 are F1 and F2 respectively, which are equal in magnitude, but the directions of F1 and F2 are not in the vertical direction, if the included angles of F1 and F2 and the vertical direction are both a, the force provided by each latch is F/(2 cosA) so that the resultant force of the vertical directions of F1 and F2 is balanced with the external force F suffered by the buckle. F/(2 cosA) is greater than F/2, and it is apparent that in the second case on the right side of FIG. 4, if the force provided by the latch does not reach F/(2 cosA), the latch will disengage, whereas in the first case on the left side of FIG. 4, the force provided by the latch only needs to reach F/2 to allow the latch to rest stably on the base without disengaging. Therefore, under the condition that the tip part of the first latch 2 and the tip part of the second latch 3 are on the same vertical line, the external force can be overcome by providing smaller acting force for each latch, and the latch can provide smaller force for the latch to be realized more easily, so that the latch is positioned on the base more stably.

In this embodiment, the number of rows is 2, and the number of latches in each row is 2, however, in other embodiments, when the number of rows of latches is greater than 2, it is necessary that the tips of at least two latches are located on the same vertical line, so as to improve the stability of the snap engagement.

Referring to fig. 2, in this embodiment, a drag reduction gap 5 is disposed between the first latch 2 and the clamping portion 4, and between the second latch 3 and the clamping portion 4, and an opening of the drag reduction gap 5 is disposed between an end of the latch and the clamping portion 4, and an inner wall of the drag reduction gap 5 away from the opening is an arc 7, that is, an inner wall of a portion where the top end of the latch is connected with the clamping portion 4 is an arc 7.

In this embodiment, the drag reduction gap 5 is R-shaped, as shown in fig. 2, since the side edge of the clamping portion 4 is a straight edge 8, the inner side edge of the latch is a bevel edge 9, and the connection portion between the latch and the clamping portion 4 is an arc 7, so that the drag reduction gap 5 formed by the straight edge 8, the bevel edge 9 and the arc 7 is similar to R-shaped.

Therefore, due to the fact that the drag reduction gap 5 exists between the clamping tooth and the clamping portion 4, the clamping tooth and the clamping portion 4 cannot be closely attached to each other due to the drag reduction gap 5, when the clamping tooth is stressed to deform, particularly when the clamping tooth transversely deforms, friction between the clamping tooth and the clamping portion 4 is reduced, assembly resistance is reduced, elasticity of the clamping tooth is improved, and clamping effect is guaranteed. Because the inner wall of the drag reduction gap 5 far away from the opening is arc 7, the part of the latch far away from the tip and the clamping part 4 are smooth and excessive, the part of the drag reduction gap 5 far away from the opening (the top of the drag reduction gap 5) does not have a sharp gap (the gap width is large, and no friction exists between the inner walls of the gap), so that friction between the latch and the clamping part 4 is reduced.

Referring to fig. 3, the vertical distance B from the center of the arc 7 to the tip end of the latch in this embodiment is 1.8-2.2mm, which is greater than the length of the latch in the prior art by 1mm. The transverse distance A from the center of the arc 7 to the sides of the latch is 0.8-1.2mm, which is less than the width of the latch in the prior art by 0.5mm. Thus, the size of the latch is changed, namely the width of the latch is reduced, the length of the latch is increased, the elasticity of the latch is improved, and the risk of crushing products is reduced.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. The utility model provides a buckle, includes body, its characterized in that: the body is fixedly provided with a clamping part, a plurality of rows of clamping teeth are fixedly arranged on the clamping part, the plurality of rows of clamping teeth are vertically distributed, and the tips of at least two clamping teeth in the plurality of rows of clamping teeth are positioned on the same vertical straight line.

2. A clasp according to claim 1, wherein: the number of the clamping parts is multiple.

3. A clasp according to claim 2, wherein: the number of the clamping parts is two, the two clamping parts are oppositely arranged, and a clamping gap is reserved between the two clamping parts.

4. A clasp according to claim 1, wherein: the anti-drag device is characterized in that an anti-drag gap is arranged between the clamping tooth and the clamping part, an opening part of the anti-drag gap is arranged between the end part of the clamping tooth and the clamping part, and the inner wall of the anti-drag gap, which is far away from the opening part, is arc-shaped.

5. A clasp according to claim 4, wherein: the drag reduction gap is R-shaped.

6. A clasp according to claim 4, wherein: the vertical distance from the center of the arc to the tip end of the latch is 1.8-2.2mm.

7. A clasp according to claim 4, wherein: the transverse distance from the center of the arc to the sides of the latch is 0.8-1.2mm.

8. A clasp according to claim 1, wherein: the body is provided with a through hole, and the clamping part is opposite to the through hole.

9. A clasp according to any one of claims 1 to 8, wherein: the number of the clamping teeth in each row is two.

10. A clasp according to claim 9, wherein: the buckle is made of metal.