A type of tight-fitting buckle

Abstract

This utility model discloses a tight-fitting buckle, comprising: component A, which has a slot, and a groove on the upper inner wall and / or lower inner wall of the slot; and component B, which has an insert that can penetrate into the slot, and the insert has a locking head at its tail that engages with the groove; the bottom of the locking head has an inclined surface, which is pressed against the top corner of the groove by the deformation of the insert. After the insert is inserted into the groove, the locking head will engage in the groove, and due to the deformation pressure of the insert, the inclined surface at the bottom of the locking head will always be pressed against the top corner, thereby keeping component A and component B in a tight-fitting state and preventing them from loosening.

Description

Technical Field

[0001] This utility model relates to the field of buckle technology, and more specifically, to a snap-fit ​​buckle. Background Technology

[0002] A snap fastener is a connection structure that connects two parts together and is widely used in various fields.

[0003] In the existing technology, the snap fastener generally includes a snap head and a snap groove that engages with the snap head. The two structures are fitted with a gap, that is, there will be a gap between the snap head and the side wall of the snap groove. The higher the processing precision, the smaller the gap, but it is always difficult to process to zero gap, which causes the entire snap fastener to become loose due to the existence of gap. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a tight-fitting buckle that can always keep the inclined surface at the bottom of the card head against the top corner of the side of the card slot to prevent loosening.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A snap-fit ​​fastener, comprising:

[0007] Component A, wherein a slot is provided on component A, and a slot is provided on the upper inner wall and / or lower inner wall of the slot;

[0008] Component B is provided with an insert that can penetrate into the slot, and the tail of the insert is provided with a locking head that engages with the slot; the bottom of the locking head is provided with an inclined surface, and the inclined surface is pressed against the top corner of the side of the slot by the pressure of the deformation of the insert.

[0009] Compared with the prior art, the present invention has at least the following beneficial effects:

[0010] After the plug is inserted into the slot, the card head will snap into the slot. Due to the deformation pressure of the plug, the inclined surface at the bottom of the card head will always be pressed against the top corner, thus keeping part A and part B in a tight fit and preventing them from loosening.

[0011] Preferably, the length of the slot is shorter than the distance from the apex to the opening of the slot.

[0012] Preferably, the plug-in is set horizontally or tilted away from the card slot.

[0013] Preferably, two slots are symmetrically arranged on component A, and card slots are also symmetrically arranged in the two slots; two plugs are symmetrically arranged on component B, and card heads are also symmetrically arranged on the two plugs.

[0014] Preferably, two card slots are symmetrically arranged vertically within one of the slots; the component B is provided with two symmetrically arranged plugs and card heads respectively disposed on the two plugs, and a reinforcing rib is connected between the two card heads.

[0015] Preferably, the reinforcing rib is bent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a snap fastener in the prior art;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 To and Figure 2 Comparison diagrams of inclined surfaces at different tilt angles;

[0019] Figure 4 This is a schematic diagram of the structure of the plug-in in an inclined state.

[0020] Figure 5 This is a schematic diagram of the dual-plug-in structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of this utility model with reinforcing ribs.

[0022] Explanation of the labels in the diagram:

[0023] 1. Component A; 2. Slot; 3. Card slot; 31. Top corner; 32. Gap; 4. Component B; 5. Insert; 6. Card head; 61. Inclined surface; 7. Reinforcing rib. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A snap fastener is a connection structure that connects two parts together and is widely used in various fields.

[0026] In the prior art, reference Figure 1 A snap fastener typically includes a snap head 6 and a snap groove 3 that engages with the snap head 6. The two structures are fitted with a gap, meaning there is a gap 32 between the snap head 6 and the side wall of the snap groove 3. The higher the machining precision, the smaller the gap 32 becomes, but it is always difficult to machine to zero gap 32, which causes the entire snap fastener to become loose due to the presence of gap 32.

[0027] Based on this, in order to improve the problem that there is a gap 32 between the card head 6 and the card slot 3 in the prior art, which causes the entire buckle to loosen, the present invention provides the following embodiments.

[0028] refer to Figure 2 A snap-fit ​​fastener includes: component A1 and component B4. Component A1 has a slot 2, and the upper inner wall and / or lower inner wall of the slot 2 have a groove 3; component B4 has an insert 5 that can penetrate into the slot 2, and the tail of the insert 5 has a locking head 6 that engages with the groove 3; the bottom of the locking head 6 has an inclined surface 61, and the inclined surface 61 is pressed against the apex corner 31 of the side of the groove 3 by the pressure of the deformation of the insert 5.

[0029] Understandably, component A1 acts as a socket, and component B4 as a plug; the two can be connected together. Of course, components A1 and B4 can be any structures that need to be connected, such as two block structures, two plate structures, etc., but are not limited to these. Slot 2 is a structure for accommodating insert 5, for example, it can be square groove or round hole, etc., but is not limited to these. Slot 2 can be integrally set with component B2, or it can be fixed to component B2 by welding or snap-fitting. Slot 3 is a structure for engaging the clip 6, for example, it can be recessed, or it can consist of two spaced protrusions, etc., but is not limited to these. Insert 5 is a structure for inserting the clip 6 into slot 3, for example, it can be a plate structure or a rod structure, etc., but is not limited to these. Since slot 2 needs to press the clip 6 onto the apex 31, it can be made of materials with elastic deformation capabilities, such as elastic plastic or metal. The orientation of the card head 6 needs to be set according to the direction of the groove. For example, if the card groove 3 is located on the upper inner wall of the slot 2, the card head 6 should be set upwards; similarly, the orientation should be reversed.

[0030] With this setup, after inserting the plug-in 5 into the slot 3, the card head 6 will snap into the slot 3. Due to the deformation pressure of the plug-in 5, the inclined surface 61 at the bottom of the card head 6 will always be pressed against the top corner 31, thus keeping the components A1 and B4 in a tight fit and preventing them from loosening.

[0031] refer to Figure 2-3 The design allows for adjustments to the tilt angle of the inclined surface 61 based on the material strength of the plug 5 and the clip 6, to accommodate different tensioning forces. A smaller tilt angle results in a greater tensioning force and makes disassembly more difficult.

[0032] In some embodiments, the length of the slot 2 is shorter than the distance from the apex 31 to the opening of the slot 2. That is, the plug-in 5 is set with negative tolerance. This will inevitably cause the inclined surface 61 at the bottom of the card head 6 to abut against the apex 31.

[0033] In some embodiments, reference Figure 2-3 Plugin 5 can be set horizontally. Of course, refer to... Figure 4 Plugin 5 can also be tilted away from the card slot 3.

[0034] In some embodiments, reference Figure 5 There are two slots 2 symmetrically arranged on component A1, and card slots 3 are also symmetrically arranged within the two slots 2; there are two inserts 5 symmetrically arranged on component B4, and card heads 6 are also symmetrically arranged on the two inserts 5. This is understandable. (See attached...) Figure 5 In this configuration, the slot 3 and the clip 6 are positioned opposite each other. Alternatively, the slot 3 and the clip 6 can be positioned opposite each other. Thus, by engaging the two clips 6 with the slot 3, the overall connection stability between component A1 and component B4 can be enhanced, increasing the connection strength.

[0035] In some embodiments, reference Figure 6 Within a slot 2, two slots 3 are symmetrically arranged vertically. Component B4 has two symmetrically arranged inserts 5 and clips 6 mounted on each insert 5, with a reinforcing rib 7 connecting the two clips 6. The reinforcing rib 7 connects the two clips 6; for example, it can be integrally formed with the clips 6 using elastic plastic or a metal sheet. Alternatively, a spring can be attached between the two clips 6 using snap-fit ​​or welding methods, but this is not a limitation. This arrangement, through the reinforcing rib 7, not only increases the structural strength of the two clips 6, preventing deformation and failure after repeated insertion and removal, but also spreads the two clips 6 in opposite directions, strengthening the pressure of the inclined surface 61 on the clips 6 against the apex 31, thereby improving the connection strength between component A1 and component B4.

[0036] In some embodiments, since the plug-in 5 deforms during the insertion and removal process, the reinforcing rib 7 also deforms along with the plug-in 5. Bending the reinforcing rib 7 is beneficial to the deformation of the reinforcing rib 7.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A close fit spigot, characterised in that, include: Component A, wherein a slot is provided on component A, and a slot is provided on the upper inner wall and / or lower inner wall of the slot; Component B is provided with an insert that can penetrate into the slot, and the tail of the insert is provided with a locking head that engages with the slot; the bottom of the locking head is provided with an inclined surface, and the inclined surface is pressed against the top corner of the side of the slot by the pressure of the deformation of the insert.

2. The snap-fit ​​buckle according to claim 1, characterized in that, The length of the slot is shorter than the distance from the apex to the opening of the slot.

3. The snap-fit ​​buckle according to claim 2, characterized in that, The plug-in is set horizontally or tilted away from the card slot.

4. A snap-fit ​​buckle according to claim 2, characterized in that, Two slots are symmetrically arranged on component A, and card slots are also symmetrically arranged in the two slots; two plugs are symmetrically arranged on component B, and card heads are also symmetrically arranged on the two plugs.

5. A snap-fit ​​buckle according to claim 2, characterized in that, Two card slots are symmetrically arranged vertically within one of the slots; two symmetrically arranged plugs and card heads are respectively arranged on the two plugs, and a reinforcing rib connects the two card heads.

6. A snap-fit ​​buckle according to claim 5, characterized in that, The reinforcing ribs are bent.

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