Hidden-sticking bottoming drill

Abstract

The utility model discloses a hidden sticky bottoming drill, which relates to the technical field of bottoming drills and comprises a bottoming drill body, an inner groove and a choked flow ring edge are formed in the middle of the bottom of the bottoming drill body, and an anti-falling ring groove is formed in the top of the inner wall of the inner groove. The inner groove and the flow blocking ring edge are used for providing enough pressing deformation space for the adhesive layer, meanwhile, the adhesive residue phenomenon caused by adhesive outflow is avoided, meanwhile, the adhesive is formed into the annular structure with the V-shaped cross section through the anti-falling ring groove, the contact area of the bottoming drill body and the adhesive layer is increased, and the service life of the bottoming drill body is prolonged. In addition, after the bottoming drill is used for a period of time, when the bonding force between the adhesive layer and the bottoming drill body is weakened, through mutual clamping connection between the V-shaped annular structure and the anti-falling-off annular groove, connecting force can be provided for the bottoming drill body, and the connecting service life of the adhesive layer and the bottoming drill body is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-bottom drills, in particular to a concealed-adhesive flat-bottom drill. Background Art

[0002] A flat-bottom drill is a small component for decoration. The main components of the material of the flat-bottom drill are silicon dioxide and lead oxide. The role of lead oxide is to enhance its refraction and diffraction effects, making it have the shiny effect of natural crystal, and it is widely used in clothing decoration.

[0003] Most flat-bottom drills are bonded to clothing with glue. However, since the bottom surface of the flat-bottom drill is a smooth surface, the bonding force between the glue and this smooth surface is limited. After actual use for a period of time, the flat-bottom drill is likely to break away from the glue, affecting the user experience of consumers. Based on this, a concealed-adhesive flat-bottom drill is provided. Content of the Utility Model

[0004] The purpose of the utility model is to provide a concealed-adhesive flat-bottom drill to solve the problems in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A concealed-adhesive flat-bottom drill includes a flat-bottom drill body. An inner groove is formed in the middle of the bottom of the flat-bottom drill body. A flow-blocking ring edge located on the outer edge of the bottom of the flat-bottom drill body is formed through the inner groove. An anti-detachment ring groove is formed at the top of the inner wall of the inner groove.

[0006] The flat-bottom drill body is bonded and fixed to clothing by filling an adhesive layer inside the inner groove. The flow-blocking ring edge is used to make the adhesive layer inside the inner groove thicker and at the same time prevent the adhesive from flowing out during the hot-fix process.

[0007] The glue filled into the anti-detachment ring groove is used to increase the contact area between the flat-bottom drill body and the glue.

[0008] As a further scheme of the utility model: The number of the anti-detachment ring grooves is set to be multiple and they are distributed in sequence from the inside to the outside. The diameters of the multiple anti-detachment ring grooves increase in sequence.

[0009] As a further scheme of the utility model: The cross-section of the anti-detachment ring groove is in a "V" shape, and the horizontal height of the lower surface in the middle of the anti-detachment ring groove is higher than the horizontal height of the top of the inner wall of the inner groove.

[0010] As a further scheme of the utility model: The inner track of the flow-blocking ring edge is in a flared structure, and the diameter gradually decreases upwards.

[0011] As a further scheme of the utility model: The initial thickness of the adhesive layer inside the inner groove is greater than the depth of the inner groove, and the outer diameter of the adhesive layer is smaller than the maximum diameter of the anti-detachment ring groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By providing an inner groove and a flow-blocking ring edge, sufficient pressing deformation space is provided for the adhesive layer, while preventing the adhesive from flowing out and causing residual glue. At the same time, through the anti-detachment ring groove, the adhesive is formed into a "V"-shaped annular structure in cross-section, which not only increases the contact area between the flat-bottom drill body and the adhesive layer, thereby improving the adhesion of the flat-bottom drill body. In addition, after using for a period of time, when the adhesion between the adhesive layer and the flat-bottom drill body weakens, through the mutual engagement between the "V"-shaped annular structure and the anti-detachment ring groove, a connecting force can also be provided for the flat-bottom drill body, effectively extending the connection life of the adhesive layer and the flat-bottom drill body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a structural cross-sectional view of the flat-bottom drill body of the present utility model;

[0016] Figure 3 is of the present utility model Figure 2 an enlarged view of the position A in.

[0017] In the figure: 1, flat-bottom drill body; 2, inner groove; 3, flow-blocking ring edge; 4, anti-detachment ring groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, a concealed adhesive flat-bottom drill includes a flat-bottom drill body 1. An inner groove 2 is formed in the middle of the bottom of the flat-bottom drill body 1. A flow-blocking ring edge 3 located on the outer edge of the bottom of the flat-bottom drill body 1 is formed through the inner groove 2. An anti-detachment ring groove 4 is formed at the top of the inner wall of the inner groove 2;

[0020] The flat-bottom drill body 1 is adhesively fixed to the clothing by filling an adhesive layer in the inner groove 2. The flow-blocking ring edge 3 is used to make the adhesive layer inside the inner groove 2 thicker, while preventing the adhesive from flowing out during the hot-fix process;

[0021] The glue filled into the anti-detachment ring groove 4 is used to increase the contact area between the flat-bottom drill body 1 and the glue;

[0022] The cross-section of the anti-detachment ring groove 4 is in a "V" shape, and the horizontal height of the lower surface in the middle of the anti-detachment ring groove 4 is higher than the horizontal height of the top of the inner wall of the inner groove 2;

[0023] The initial thickness of the adhesive layer inside the inner groove 2 is greater than the depth of the inner groove 2, and the outer diameter of the adhesive layer is smaller than the maximum diameter of the anti-detachment ring groove 4.

[0024] In this embodiment: When this flat-bottom drill is adhesively installed through the hot-fix process, the adhesive layer inside its inner groove 2 first contacts the clothing surface. Then, under the heating of an external hot-fix device, the adhesive layer softens, the adhesive layer is extruded and deformed, and while the adhesive layer is adhesively bonded to the clothing surface, the thickness of the adhesive layer becomes thinner and the outer diameter becomes larger. The bottom of its flow-blocking ring edge 3 is pressed against the clothing surface, so that the adhesive can be prevented from flowing out to the outside of the flat-bottom drill body 1. At the same time, part of the adhesive fills into the anti-detachment ring groove 4, and finally the anti-detachment ring groove 4 is filled up;

[0025] After the hot-fix is completed, when the adhesive layer solidifies, the fixation of the flat-bottom drill is completed. At this time, the adhesive located inside the anti-detachment ring groove 4 is formed into a "V"-shaped annular structure in cross-section, which not only increases the contact area between the flat-bottom drill body 1 and the adhesive layer, thereby improving the adhesive force of the flat-bottom drill body 1. At the same time, after being used for a period of time, when the adhesive force between the adhesive layer and the flat-bottom drill body 1 weakens, through the mutual clamping between the "V"-shaped annular structure and the anti-detachment ring groove 4, a connecting force can also be provided for the flat-bottom drill body 1, effectively extending the connection life of the adhesive layer and the flat-bottom drill body 1.

[0026] Please refer specifically to Figures 1 to 3 , the number of the anti-detachment ring grooves 4 is set to be multiple and are distributed in sequence from the inside to the outside, and the diameters of the multiple anti-detachment ring grooves 4 increase in sequence.

[0027] In this embodiment: Through the multiple anti-detachment ring grooves 4 with diameters increasing in sequence, the adhesive layer can finally be formed into multiple "V"-shaped annular structures, further improving the adhesive force of the flat-bottom drill body 1.

[0028] Please refer specifically to Figures 1 to 3 , the inner track of the flow-blocking ring edge 3 is in a flared structure, and the upward diameter gradually decreases.

[0029] In this embodiment: Through this structure, while keeping the bottom width of the flow-blocking ring edge 3 relatively narrow, the overall flow-blocking ring edge 3 maintains strong strength, avoiding the situation that it is easily damaged due to the flow-blocking ring edge 3 being thin and narrow.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A concealed flat bottom drill, comprising a flat bottom drill body (1), characterized in that: An inner groove (2) is formed in the middle of the bottom of the flat-bottom drill body (1); a flow-blocking ring edge (3) is formed on the flat-bottom drill body (1) through the inner groove (2) and is located at the outer edge of the bottom of the flat-bottom drill body (1); and an anti-falling ring groove (4) is formed on the top of the inner wall of the inner groove (2); The flat-bottom drill body (1) is bonded and fixed to the clothing by filling an adhesive layer inside the inner groove (2), and the flow-blocking ring edge (3) is used to make the adhesive layer inside the inner groove (2) thicker and prevent the adhesive from flowing out during the hot drilling process; The glue filled into the anti-falling ring groove (4) is used to increase the contact area between the flat bottom drill body (1) and the glue.

2. A concealed flat bottom drill according to claim 1, characterized in that: The anti-falling ring grooves (4) are provided in a plurality and are distributed sequentially from the inside to the outside, and the diameters of the plurality of anti-falling ring grooves (4) are increased sequentially.

3. The concealed flat bottom drill according to claim 1, characterized in that: The cross section of the anti-falling ring groove (4) is in a "V"-shaped structure, and the horizontal height of the lower surface of the middle part of the anti-falling ring groove (4) is higher than the horizontal height of the top of the inner wall of the inner groove (2).

4. The concealed flat bottom drill according to claim 1, characterized in that: The inner track of the flow-blocking ring edge (3) is in a bell-mouth structure, and its diameter gradually decreases upwards.

5. The concealed flat bottom drill according to claim 2, characterized in that: The initial thickness of the adhesive layer inside the inner groove (2) is greater than the depth of the inner groove (2), and the outer diameter of the adhesive layer is smaller than the maximum diameter of the anti-falling ring groove (4).

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