Guide pillar structure for piano keys

Abstract

The utility model discloses a guide pillar structure for piano keys, which comprises a guide pillar main body, a guide sleeve assembly head is arranged at one end of the guide pillar main body, a cross-shaped elastic clearance groove is arranged in the guide sleeve assembly head, and at least four V-shaped grooves which are annularly arranged are arranged at the upper end of the outer side wall of the guide sleeve assembly head. And soft elastic glue is filled in the V-shaped groove. When the guide sleeve assembly head is in interference fit with a product guide sleeve, the guide sleeve assembly head cannot automatically loosen and retreat and is good in stability due to the fact that elastic glue absorbs deformation after the diameter of the guide sleeve assembly head is pressed, and friction force is provided for the inner wall of the product guide sleeve, the problems that UV glue is prone to overflowing, falling off and the like during assembly are effectively solved, and assembly efficiency is improved. Therefore, the utility model has the advantages of novel design, simple structure, interference fit assembly, no automatic loosening and good stability, effectively solves the problem that the UV glue is easy to overflow and fall off during assembly, and improves the assembly efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic guide posts, in particular to a guide post structure for piano keys. Background Art

[0002] In the assembly of piano keys, since the guide posts and guide sleeves used in the assembly of piano keys are clearance fits, interference fit is generally adopted. However, they can freely loosen before and after pressing. To prevent loosening, UV glue dispensing is generally used for assembly. When the UV glue is assembled and cured, a certain amount of pressure needs to be applied to the surface layer of the glue to ensure that it will not loosen freely after curing. However, UV glue assembly is prone to problems such as glue overflow and falling off. Therefore, a guide post structure for piano keys is designed. Utility Model Content

[0003] The purpose of the utility model is to provide a guide post structure for piano keys in response to the deficiencies of the prior art. The guide post structure for piano keys has a novel design and a simple structure. It adopts interference fit assembly and will not loosen automatically. It has good stability and effectively solves the problems of glue overflow and falling off that easily occur during UV glue assembly, thereby improving assembly efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions.

[0005] A guide post structure for piano keys includes a guide post body, one end of which is provided with a guide sleeve fitting head, and a cross-shaped elastic air-avoiding groove is provided in the guide sleeve fitting head. At least four annular V-shaped grooves are provided at the upper end of the outer wall of the guide sleeve fitting head, and the V-shaped grooves are filled with soft elastic glue.

[0006] Wherein, the guide column body, the guide sleeve fitting head and the elastic glue are an integral injection molding structure.

[0007] Wherein, the material of the guide column body and the guide sleeve fitting head is PC hard plastic.

[0008] Wherein, the material of the elastic glue is TPU soft glue.

[0009] The beneficial effects of the present invention are as follows: the guide post structure for piano keys described in the present invention includes a guide post body, one end of the guide post body is provided with a guide sleeve fitting head, and a cross-shaped elastic air avoidance groove is provided in the guide sleeve fitting head, and at least four annular V-shaped grooves are provided on the upper end of the outer side wall of the guide sleeve fitting head, and the V-shaped grooves are filled with soft elastic glue. The utility model is provided with a guide sleeve fitting head at one end of a guide column body, and a cross-shaped elastic air avoidance groove is provided in the guide sleeve fitting head, and at least four annular V-shaped grooves are provided on the upper end of the outer wall of the guide sleeve fitting head, and the V-shaped grooves are filled with soft elastic glue. When the guide sleeve fitting head and the product guide sleeve are interference fit, the elastic glue absorbs the deformation after the diameter of the guide sleeve fitting head is compressed, and provides friction to the inner wall of the product guide sleeve, so that it will not loosen automatically and has good stability, effectively solving the problems of easy glue overflow and falling off in UV glue assembly, and improving assembly efficiency. Therefore, the utility model has the advantages of novel design, simple structure, interference fit assembly, no automatic loosening, good stability, effectively solving the problems of easy glue overflow and falling off in UV glue assembly, and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] exist Figure 1 These include:

[0013] 1——Guide column body 11——Guide sleeve fitting head

[0014] 111——V-shaped groove 12——elastic avoidance groove

[0015] 13——Elastic glue. DETAILED DESCRIPTION

[0016] The present invention will be described below in conjunction with specific implementation methods.

[0017] like Figure 1 As shown, a guide post structure for piano keys includes a guide post body 1, one end of the guide post body 1 is provided with a guide sleeve fitting head 11, and a cross-shaped elastic air avoidance groove 12 is provided in the guide sleeve fitting head 11. At least four V-shaped grooves 111 are arranged in a ring at the upper end of the outer wall of the guide sleeve fitting head 11, and the V-shaped grooves 111 are filled with soft elastic glue 13.

[0018] As a preferred embodiment of this embodiment, the guide column body 1, the guide sleeve fitting head 11 and the elastic adhesive 13 are an integral injection-molded structure.

[0019] As a preferred embodiment of the present invention, the guide post body 1 and the guide sleeve fitting head 11 are made of PC hard plastic.

[0020] As a preferred embodiment of the present invention, the elastic glue 13 is made of TPU soft glue.

[0021] Further explanation is needed. The utility model is provided with a guide sleeve fitting head 11 at one end of the guide column body 1, and a cross-shaped elastic air avoidance groove 12 is provided in the guide sleeve fitting head 11, and at least four V-shaped grooves 111 are arranged in a ring at the upper end of the outer wall of the guide sleeve fitting head 11, and the V-shaped grooves 111 are filled with soft elastic glue 13. When the guide sleeve fitting head 11 and the product guide sleeve are interference fit, the elastic glue 13 absorbs the deformation after the diameter of the guide sleeve fitting head 11 is compressed, and provides friction to the inner wall of the product guide sleeve, so that it will not loosen automatically and has good stability. It effectively solves the problems of glue overflow and falling off that are prone to occur in UV glue assembly, and improves assembly efficiency. Therefore, the utility model has the advantages of novel design, simple structure, interference fit assembly, will not loosen automatically, has good stability, effectively solves the problems of glue overflow and falling off that are prone to occur in UV glue assembly, and improves assembly efficiency.

[0022] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A guide post structure for piano keys, characterized in that: The invention comprises a guide column body (1), one end of the guide column body (1) is provided with a guide sleeve fitting head (11), and a cross-shaped elastic air-avoiding groove (12) is provided in the guide sleeve fitting head (11), and at least four annular V-shaped grooves (111) are provided at the upper end of the outer wall of the guide sleeve fitting head (11), and the V-shaped grooves (111) are filled with soft elastic glue (13).

2. The guide post structure for piano keys according to claim 1, wherein: The guide column body (1), the guide sleeve fitting head (11) and the elastic glue (13) are an integral injection-molded structure.

3. The guide post structure for piano keys according to claim 1, wherein: The guide column body (1) and the guide sleeve fitting head (11) are made of PC hard plastic.

4. The guide post structure for piano keys according to claim 1, wherein: The elastic glue (13) is made of TPU soft glue.

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