Comb tooth mounting assembly

Abstract

The present invention discloses a comb tooth mounting assembly, which includes a tooth carrier mounting hole formed in a mounting base body, an elastic tooth carrier and comb teeth. A tooth root groove is provided on the side wall of the comb teeth. A comb tooth mounting hole is provided on the elastic tooth carrier, and the inner wall of the comb tooth mounting hole has an inner convex tenon. A clamping groove is provided on the inner wall of the tooth carrier mounting hole. The elastic tooth carrier is mounted in the tooth carrier mounting hole. The comb teeth are inserted into the comb tooth mounting hole and the inner convex tenon is engaged with the tooth root groove. At the same time, the bottom of the tooth root groove extrudes the inner convex tenon outward, causing the outer side wall of the elastic tooth carrier to bulge outward to form an outer convex tenon and engage with the clamping groove. The present invention can improve the assembly efficiency of the elastic tooth carrier and thus improve the assembly efficiency of the entire comb. In addition, it can achieve glue-free installation of the comb teeth, which is green and environmentally friendly. Moreover, the comb is convenient to assemble, which is beneficial to later disassembly and maintenance. Each component can be recycled without secondary processing to remove glue, improving the material utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field related to combs, and particularly to a comb tooth mounting assembly. Background Art

[0002] For existing inserted tooth combs, straight wall comb tooth mounting holes are usually drilled on the comb back. After applying glue to the roots of the comb teeth, the comb teeth are inserted into the comb tooth mounting holes. This structure uses a large amount of adhesives, which is not environmentally friendly. Moreover, once the comb teeth are damaged, it is relatively difficult to repair, and for the recycling of parts, glue removal and secondary grinding are required, making recycling difficult.

[0003] Based on the above technical problems, a comb tooth mounting assembly is needed to simplify the installation process of the comb teeth. Summary of the Invention

[0004] In view of this, the present invention provides a comb tooth mounting assembly, in which the comb teeth are mounted on the mounting base without glue through an elastic tooth holder, which is green and environmentally friendly and is conducive to the secondary recycling of parts.

[0005] The comb tooth mounting assembly of the present invention includes a tooth holder mounting hole opened on the mounting base, an elastic tooth holder, and comb teeth. A tooth root groove is provided on the side wall of the comb teeth. A comb tooth mounting hole is provided on the elastic tooth holder. An inner convex tenon that cooperates with the tooth root groove protrudes from the inner wall of the comb tooth mounting hole. A clamping groove is provided on the inner wall of the tooth holder mounting hole. The elastic tooth holder is mounted in the tooth holder mounting hole. The comb teeth are inserted into the comb tooth mounting hole, and the inner convex tenon engages with the tooth root groove to clamp the comb teeth in the comb tooth mounting hole. At the same time, the bottom of the tooth root groove extrudes the inner convex tenon outward, causing the outer side wall of the elastic tooth holder to bulge outward to form an outer convex tenon that engages with the clamping groove.

[0006] Further, a guiding surface is provided at the tooth root end of the comb teeth so that the tooth root is in a structure with a smaller outer diameter and a larger inner diameter.

[0007] Further, the comb tooth mounting hole is a blind hole structure.

[0008] Further, a ventilation hole communicating with the outside is opened at the bottom of the comb tooth mounting hole.

[0009] Further, the clamping groove is an annular groove opened along the circumferential direction of the inner wall of the tooth holder mounting hole.

[0010] Further, the clamping groove is an arc-shaped groove in the vertical cross-section.

[0011] Further, the tooth root groove is an annular groove opened along the circumferential direction of the side wall of the comb teeth, and the inner convex tenon is an annular protrusion that protrudes circumferentially from the inner wall of the comb tooth mounting hole and cooperates with the tooth root groove.

[0012] Further, the elastic tooth holder and the tooth holder mounting hole are in interference fit.

[0013] Further, the comb teeth and the comb tooth mounting hole are in interference fit.

[0014] Furthermore, when the inner tenon engages with the tooth root groove, the tooth root end of the comb tooth abuts against the bottom of the comb tooth mounting hole.

[0015] Advantages of the present invention:

[0016] When the elastic tooth tray is assembled with the tooth tray mounting hole in the present invention, the outer tenon is not formed, which facilitates the assembly of the elastic tooth tray and the tooth tray mounting hole, can improve the assembly efficiency of the elastic tooth tray and thus improve the assembly efficiency of the entire comb. Similarly, when disassembling, first disassemble the comb teeth. At this time, the outer tenon shrinks, which is conducive to the disassembly and removal of the elastic tooth tray; the outer convex forming and contraction of the outer tenon are controllable, which is conducive to cooperating with the assembly process of the entire comb to improve its assembly efficiency and is conducive to later disassembly and maintenance; through the cooperation of the elastic tooth tray and the tooth tray mounting hole, the comb teeth and the comb tooth mounting hole, the inner tenon and the tooth root groove, and the outer tenon and the card slot, the glue-free installation of the comb teeth can be realized, which is green and environmentally friendly, and the comb is convenient to assemble, conducive to later disassembly and maintenance, and each component can be recycled without secondary processing to remove glue, improving the material utilization rate. Description of the Drawings

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 Schematic diagram of the tooth tray mounting hole structure in Embodiment 1;

[0019] Figure 2 Schematic diagram of the elastic tooth tray structure;

[0020] Figure 3 Schematic diagram of the comb tooth structure;

[0021] Figure 4 Schematic diagram of the assembly structure of the elastic tooth tray and the tooth tray mounting hole;

[0022] Figure 5 Schematic diagram of the comb tooth assembly structure;

[0023] Figure 6 Schematic diagram of the tooth tray mounting hole structure in Embodiment 2; Detailed Embodiments

[0024] Figure 1 Schematic diagram of the tooth tray mounting hole structure in Embodiment 1; Figure 2 Schematic diagram of the elastic tooth tray structure; Figure 3 Schematic diagram of the comb tooth structure; Figure 4 Schematic diagram of the assembly structure of the elastic tooth tray and the tooth tray mounting hole; Figure 5 Schematic diagram of the comb tooth assembly structure; Figure 6 Schematic diagram of the tooth tray mounting hole structure in Embodiment 2;

[0025] The comb tooth mounting assembly of this embodiment includes a tooth holder mounting hole 1 formed on a mounting base, an elastic tooth holder 2, and a comb tooth 3. A tooth root groove 4 is provided on the side wall of the comb tooth. A comb tooth mounting hole 5 is provided on the elastic tooth holder. An inner convex tenon 6 that cooperates with the tooth root groove is formed by outward protrusion of the inner wall of the comb tooth mounting hole. A clamping groove 7 is provided on the inner wall of the tooth holder mounting hole 1. The elastic tooth holder is mounted in the tooth holder mounting hole. The comb tooth is inserted into the comb tooth mounting hole, and the inner convex tenon is engaged with the tooth root groove to clamp the comb tooth in the comb tooth mounting hole. At the same time, the bottom of the tooth root groove extrudes the inner convex tenon outward, causing the outer side wall of the elastic tooth holder to bulge outward to form an outer convex tenon 8 and engage with the clamping groove. The elastic tooth holder is preferably made of rubber. Of course, other elastic materials with compressible and resilient properties can also be selected. The mounting base can be a circular, flat long strip or a comb back of other shapes. The specific structure and shape of the mounting base are specifically determined according to the arrangement rules of the comb teeth. In this embodiment, the comb back is taken as an example. Tooth holder mounting holes that match each comb tooth one by one are provided on the comb back 9. The elastic tooth holder and the tooth holder mounting hole can be cylindrical structures, cuboid structures or other polygonal columnar structures. Combining Figure 1 and Figure 2 as shown, in this embodiment, it is preferred that the elastic tooth holder, the tooth holder mounting hole, and the comb tooth are cylindrical structures. The tooth root groove, the inner convex tenon, and the clamping groove can have rectangular, arc-shaped, trapezoidal or other special-shaped cross-section structures on the corresponding vertical cross-section as shown in Figures 1 to 3 . It should be noted that the outer convex tenon is not the structure of the elastic tooth holder itself. Combining Figure 2 and Figure 4 as shown, when the comb tooth is not mounted on the elastic tooth holder, the outer circular surface of the elastic tooth holder is a smooth surface structure, as shown in Figure 5As shown in the figure, when the root of the comb teeth is pressed into the comb tooth mounting hole by an external force, the inner tenon is first compressed by the outer cylindrical surface of the comb teeth. At the same time, the outer wall of the elastic tooth support bulges outwards to form the prototype of the outer tenon. When the tooth root groove runs to the position corresponding to the inner tenon, the inner tenon rebounds and snaps into the tooth root groove to engage with the tooth root groove. At the same time, the tooth root groove still has a radially outward acting force on the inner tenon, causing the outer side wall of the elastic tooth support to bulge outwards to form the final outer tenon. When designing the assembly position, it should be ensured that after the comb teeth, the elastic tooth support and the comb back are assembled, the inner tenon, the tooth root groove and the card slot are at the same height. At this time, the outer tenon automatically aligns with the card slot at the same height, and the outer tenon automatically snaps into the card slot after being formed; in the above structure, when the elastic tooth support is assembled with the tooth support mounting hole, the outer tenon is not formed, which is conducive to the assembly of the elastic tooth support and the tooth support mounting hole, and can improve the assembly efficiency of the elastic tooth support and thus the assembly efficiency of the entire comb. Similarly, when disassembling, first disassemble the comb teeth. At this time, the outer tenon shrinks, which is conducive to the disassembly and removal of the elastic tooth support; the outward protrusion and contraction of the outer tenon are controllable, which is conducive to improving the assembly efficiency in cooperation with the assembly process of the entire comb and facilitating later disassembly and maintenance; through the cooperation of the elastic tooth support and the tooth support mounting hole, the comb teeth and the comb tooth mounting hole, the inner tenon and the tooth root groove, and the outer tenon and the card slot, the glue-free installation of the comb teeth can be realized, which is green and environmentally friendly, and the comb is convenient to assemble, conducive to later disassembly and maintenance, and each component can be recycled without secondary processing to remove glue, improving the material utilization rate.

[0026] In this embodiment, the card slot is an annular groove opened along the inner wall circumference of the tooth support mounting hole. The annular groove extends circumferentially and can adapt to the circumferential protrusion position of the outer tenon, that is, the outer tenon can protrude at any circumferential position of the elastic tooth support and still form a reliable engagement with the card slot. Of course, to improve the assembly stability of the elastic tooth support and the tooth support mounting hole, it is preferred that the outer tenon protrudes circumferentially along the outer cylindrical surface of the elastic tooth support to form an annular protrusion structure adapted to the card slot;

[0027] In addition, in this embodiment, the tooth root groove is an annular groove opened along the circumferential direction of the comb tooth side wall, and the inner tenon is an annular protrusion protruding circumferentially on the inner wall of the comb tooth mounting hole and cooperating with the tooth root groove; the annular inner tenon and the annular tooth root groove cooperate to form an annular outer tenon protruding from the outer cylindrical surface of the elastic tooth support. The cooperation of the outer tenon of this structure and the card slot can improve the installation stability of the elastic tooth support;

[0028] After the comb teeth and the elastic tooth support are assembled, the bottom of the tooth root groove needs to have an outward acting force on the inner tenon, that is, it is necessary to ensure that the protruding height of the inner tenon is higher than the depth of the tooth root groove; at the same time, it is necessary to ensure that the inner diameter D3 of the inner circle of the inner tenon is smaller than the corresponding diameter d3 at the bottom of the tooth root groove in the free state of the elastic tooth support;

[0029] In this embodiment, the root end of the comb teeth is provided with a guiding surface along its circumferential direction so that the root part has a structure with a smaller outer diameter and a larger inner diameter. Figure 2 and Figure 3As shown, the outer represents the root end side of the comb tooth, and the inner represents the side away from the root end along the length direction of the comb tooth. The outer diameter d4 at the root of the comb tooth is greater than D3. Therefore, during the installation of the comb tooth into the comb tooth installation hole, the inner tenon needs to be extruded outwards. The setting of the guiding surface facilitates the smooth sliding of the root end of the comb tooth to the inner circle corresponding to the inner tenon, avoiding the inner tenon being stuck at the root end and interfering with the assembly of the comb tooth. The guiding surface can be an arc surface or a conical surface with a gradually decreasing diameter from the outside to the inside. During the actual manufacturing process, only a fillet or a chamfer needs to be added at the root end to form the guiding surface. The radius of the fillet and the inclination angle of the chamfer can be adjusted according to the actual situation, and details will not be elaborated here;

[0030] In this embodiment, the comb tooth installation hole is a blind hole structure. The blind hole structure can make the end of the comb tooth abut against the elastic tooth holder, which is beneficial to form a flexible installation of the comb tooth and improve the use comfort of the comb.

[0031] In this embodiment, a ventilation hole 10 communicating with the outside is opened at the bottom of the comb tooth installation hole. The ventilation hole is beneficial to exhaust air during the installation of the comb tooth and facilitates the assembly of the comb tooth.

[0032] In this embodiment, the card slot is an arc slot in the vertical cross-section. The vertical cross-section mentioned here corresponds to Figure 1 the middle cross-section. As shown in combination with Figure 1 , the card slot is an arc structure. As shown in combination with Figure 5 , during the actual assembly process, the outer tenon formed by the outward convexity of the outer circular surface of the elastic tooth holder is usually an arc-shaped convex structure. The arc-shaped card slot is beneficial to adapt to the structure of the outer tenon and improve the stability and reliability of the cooperation between the two. The outer tenon and the card slot can be in interference fit to improve the installation stability of the elastic tooth holder; of course, the cross-section of the card slot can be adjusted accordingly according to the actual use conditions, Figure 6 For Embodiment 2 of the tooth holder installation hole, as shown in combination with Figure 6 , the card slot is a rectangular slot in the vertical cross-section. Of course, a trapezoidal cross-section or other special-shaped cross-sections can also be used, and details will not be elaborated here.

[0033] In this embodiment, the elastic tooth holder is in interference fit with the tooth holder installation hole. As shown in combination with Figure 1 and Figure 2 , the inner diameter D1 of the tooth holder installation hole should be slightly smaller than the outer diameter d1 of the elastic tooth holder, so that the two are in interference fit during assembly. The elastic tooth holder is effectively clamped circumferentially, improving the installation stability and positioning accuracy of the elastic tooth holder; as shown in combination with Figure 4As shown, the interference fit between the elastic denture base and the denture base mounting hole can prevent gaps from appearing between the two and prevent stains from accumulating at their assembly interface. Of course, due to the engagement of the card slot and the external tenon, an appropriate clearance fit between the elastic denture base and the denture base mounting hole can also meet the basic assembly requirements, which will not be elaborated here. In this embodiment, the diameters of d2 and d4 are the same. In other embodiments, d2 and d4 can be adjusted according to the existing structural form of the comb teeth, which will not be elaborated here.

[0034] In this embodiment, the interference fit between the comb teeth and the comb teeth mounting hole. Figure 3 and Figure 4 As shown, the outer diameter d2 of the comb teeth should be slightly larger than the inner diameter D2 of the corresponding comb teeth mounting hole when the elastic denture base is installed in the denture base mounting hole, so that an interference fit is achieved during their assembly. The comb teeth are effectively clamped circumferentially, improving the installation stability of the comb teeth and making it less likely for the comb teeth to deflect.

[0035] The interference fit between the comb teeth and the comb teeth mounting hole can also prevent gaps from appearing between the two and prevent stains from accumulating at their assembly interface. Of course, due to the engagement of the internal tenon and the tooth root groove, an appropriate clearance fit between the comb teeth and the comb teeth mounting hole can also meet the basic assembly requirements, which will not be elaborated here.

[0036] In this embodiment, when the internal tenon 6 engages with the tooth root groove 4, the tooth root end of the comb teeth abuts against the bottom of the comb teeth mounting hole. When the elastic denture base is installed in the denture base mounting hole, it should be ensured that the bottom of the elastic denture base abuts against the bottom of the denture base mounting hole. In addition, the tooth root end of the comb teeth abuts against the elastic denture base, which can improve the installation stability of the comb teeth. Moreover, the vertical micro-elastic movement stroke of the comb teeth is jointly determined by the thickness of the bottom of the elastic denture base, the vertical limit structure of the internal tenon 6 and the tooth root groove 4, and the vertical limit structure of the external tenon and the card slot. When this vertical movement stroke can be sensed, the human body can perceive the flexible massage function when the comb teeth expand and contract.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A comb tooth mounting assembly, characterized in that: It includes a denture holder mounting hole opened on a mounting base body, an elastic denture holder, and comb teeth. A tooth root groove is provided on the side wall of the comb teeth. A comb tooth mounting hole is provided on the elastic denture holder. An inner protruding tenon that cooperates with the tooth root groove is formed by the outward protrusion of the inner wall of the comb tooth mounting hole. A clamping groove is provided on the inner wall of the denture holder mounting hole. The elastic denture holder is mounted in the denture holder mounting hole. The comb teeth are inserted into the comb tooth mounting hole, and the inner protruding tenon engages with the tooth root groove to clamp the comb teeth in the comb tooth mounting hole. At the same time, the bottom of the tooth root groove extrudes the inner protruding tenon outward, causing the outer side wall of the elastic denture holder to bulge outward to form an outer protruding tenon that engages with the clamping groove. The protruding height of the inner protruding tenon is higher than the depth of the tooth root groove.

2. The comb tooth mounting assembly according to claim 1, characterized in that: A guiding surface is provided at the tooth root end of the comb teeth so that the tooth root is in a structure with a smaller outer part and a larger inner part.

3. The comb tooth mounting assembly according to claim 1, wherein: The comb tooth mounting hole is of a blind hole structure.

4. The comb tooth mounting assembly according to claim 3, characterized in that: A ventilation hole communicating with the outside is opened at the bottom of the comb tooth mounting hole.

5. The comb tooth mounting assembly according to claim 1, characterized in that: The clamping groove is an annular groove opened along the circumferential direction of the inner wall of the denture holder mounting hole.

6. The comb tooth mounting assembly according to claim 1, characterized in that: The clamping groove is an arc-shaped groove in the vertical cross-section.

7. The comb tooth mounting assembly according to claim 5, wherein: The tooth root groove is an annular groove opened along the circumferential direction of the side wall of the comb teeth, and the inner protruding tenon is an annular protrusion that protrudes circumferentially from the inner wall of the comb tooth mounting hole and cooperates with the tooth root groove.

8. The comb tooth mounting assembly according to claim 1, characterized in that: The elastic denture holder is in interference fit with the denture holder mounting hole.

9. The comb tooth mounting assembly according to claim 1, characterized in that: The comb teeth are in interference fit with the comb tooth mounting hole.

10. The comb tooth mounting assembly according to claim 3, wherein: When the inner protruding tenon engages with the tooth root groove, the tooth root end of the comb teeth abuts against the bottom of the comb tooth mounting hole.

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