CN112294066A

CN112294066A - Concave-convex matching structure capable of realizing semi-vacuum connection

Info

Publication number: CN112294066A
Application number: CN201910705751.6A
Authority: CN
Inventors: 段睿纮
Original assignee: Individual
Current assignee: Yinghai Sikang Technology Co ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2021-02-02

Abstract

The invention provides a concave-convex matching structure capable of realizing semi-vacuum connection, which comprises a first connecting piece, a second connecting piece and a third connecting piece, wherein the first connecting piece is provided with a groove, and the groove is provided with a groove wall surface and a groove bottom surface which are connected; the second combining piece is provided with a main body part and a convex column which are connected, the convex column is inserted into the groove, the convex column is provided with an outer wall surface and a top surface, the top surface is positioned at one end of the outer wall surface, the outer wall surface is attached to the groove wall surface in a clinging manner, the top surface faces the groove bottom surface, and a negative pressure space is arranged between the top surface and the groove bottom surface.

Description

Concave-convex matching structure capable of realizing semi-vacuum connection

Technical Field

The present invention relates to a coupling structure, and more particularly, to a concave-convex coupling structure.

Background

Generally, the combination structure of the prior art mostly adopts screw thread matching, taking the combination structure of the environment-friendly chopsticks as an example, in order to conveniently store the environment-friendly chopsticks, the chopstick body is designed to be in a two-section shape, wherein one end of one section of chopstick body is provided with a screw groove, the other section of chopstick body is convexly provided with a screw lock part, when a user wants to use the environment-friendly chopsticks, the two sections of chopstick bodies are combined through the screw groove and the screw lock part in a screw thread way so as to be convenient to use, otherwise, when the user finishes using and wants to store the chopstick body, the user only needs to rotate the block body, and the screw lock part is withdrawn from the screw groove so as to enable the chopstick body to be in a two-section shape, thereby being convenient;

however, in the prior art, the combination structure with screw thread fit is easy to cause unstable combination relationship or even to release due to vibration or slight rotation, and for chopsticks, a user can even cause the screw lock to withdraw from the screw groove due to moving or rotating the chopsticks, thereby causing unstable combination relationship, so that a concave-convex fit structure with tight combination relationship is required.

Disclosure of Invention

The invention provides a concave-convex matching structure, which mainly aims to ensure that the combination relationship is more stable.

To achieve the above object, the present invention provides a male and female mating structure capable of semi-vacuum connection, comprising:

a first coupling member having a groove with a groove wall surface and a groove bottom surface that are joined to one end of the groove wall surface, the groove having a central axis that extends in an axial direction, the groove wall surface having a first axial length in the axial direction;

the second connector is provided with a body part and a convex column which are connected, the convex column is inserted into the groove and is provided with an outer wall surface and a top surface, the top surface is positioned at one end of the outer wall surface, the outer wall surface is attached to the groove wall surface in a clinging manner, the top surface faces the groove bottom surface, a distance is reserved between the top surface and the groove bottom surface, a negative pressure space is reserved between the top surface and the groove bottom surface, the outer wall surface has a second axial length along the axial direction, and the second axial length is larger than the first axial length.

In view of the foregoing, the present invention mainly forms the negative pressure space by spacing the distance between the top surface and the bottom surface of the slot, and the pressure in the negative pressure space is smaller than the external pressure, so as to resist the opposite forces applied by the user to the first combining member and the second combining member, and further to make the combination relationship between the first combining member and the second combining member more stable.

Drawings

Fig. 1 is a schematic perspective view of a male-female mating structure capable of semi-vacuum connection according to the present invention.

Fig. 2 is a cross-sectional view of a first embodiment of a male-female mating structure of the present invention capable of semi-vacuum connection.

Fig. 3 is a cross-sectional view of a second embodiment of a male-female mating structure for semi-vacuum connection according to the present invention.

Description of the symbols in the drawings:

first end 10A of first joint 10

Groove 11 groove wall 112

Groove bottom 113 first end surface 12

The body 21 of the second bonding member 20

Second end surface 211 convex column 22

Outer wall 221 top surface 222

Negative pressure space 30 of adhesive layer 23

Distance D from central axis A

First axial length L1 second axial length L2

Axial X extension Y

Detailed Description

The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

As shown in fig. 1 and 2, a first embodiment of a male-female mating structure capable of semi-vacuum connection according to the present invention includes:

the first connecting member 10 is made of an elastically deformable material, the first connecting member 10 has a groove 11, in this embodiment, the groove 11 is a tapered groove, the groove 11 has a groove wall surface 112 and a groove bottom surface 113 that are connected, the groove wall surface 112 is a conical surface, the groove bottom surface 113 is connected to one end of the groove wall surface 112, the groove 11 has a central axis a, the central axis a extends along an axial direction X, an angle is included between an extension line Y of the groove wall surface 112 and the central axis a, the angle is between 1 degree and 5 degrees, preferably 1 degree, and the groove wall surface 112 has a first axial length L1 along the axial direction X;

preferably, the first connecting element 10 has a first end 10A, the groove 11 is recessed in the first end 10A, and the first end 10A has a first end surface 12;

the second connector 20 has a main body 21 and a convex pillar 22 connected, the convex pillar 22 is inserted into the groove 11, the convex pillar 22 has an outer wall surface 221 and a top surface 222, the top surface 222 is located at one end of the outer wall surface 221, the outer wall surface 221 is attached to the groove wall surface 112 in a close manner, the top surface 222 faces the groove bottom surface 113, when the convex pillar 22 is completely inserted into the groove 11, a distance D is formed between the top surface 222 and the groove bottom surface 113, at this time, a space between the top surface 222 and the groove bottom surface 113 is defined as a negative pressure space 30, the outer wall surface 221 has a second axial length L2 along the axial direction X, and the second axial length L2 is greater than the first axial length L1;

when the convex pillar 22 of the second combining member 20 is inserted into the concave groove 11 of the first combining member 10, since the first combining member 10 is made of an elastically deformable material, the concave groove 11 is slightly stretched by the convex pillar 22, so that the outer wall surface 221 is tightly attached to the groove wall surface 112.

Preferably, the body portion 21 of the second joint member 20 has a second end surface 211, the second end surface 211 is connected to the outer wall surface 221, an extending direction of the second end surface 211 is different from an extending direction of the outer wall surface 221, so that the second end surface 211, the outer wall surface 221, and the top surface 222 form a step-shaped configuration together, and the second end surface 211 abuts against the first end surface 12.

In a second embodiment, as shown in fig. 3, further comprising:

the second coupling member 20 further has a glue layer 23 coupled to and covering the outer wall 221 of the protruding pillar 22, so that the glue layer 23 is tightly attached to the groove wall 112, and the glue layer 23 is made of rubber or other high friction material, so that the coupling relationship between the first coupling member 10 and the second coupling member 20 is more stable due to the high friction property of the glue layer 23.

Preferably, the glue layer 23 is further combined to cover the top surface 222 of the convex pillar 22.

As can be seen from the foregoing, the distance D is formed between the top surface 222 and the bottom surface 112 of the slot to form the negative pressure space 30, and the pressure in the negative pressure space 30 is smaller than the external pressure, so that the reverse direction force applied by the user to the first engaging member 10 and the second engaging member 20 can be resisted, and the engaging relationship between the first engaging member 10 and the second engaging member 20 is more stable.

In addition, the outer wall surface 221 is closely attached to the groove wall surface 112, so that an airtight measure is formed, and the negative pressure state in the negative pressure space 30 is ensured.

In addition, the second end surface 211 is tightly abutted against the first end surface 12 to form another airtight measure, so that the negative pressure state in the negative pressure space 30 is further ensured, and when the second end surface 211 is tightly abutted against the first end surface 12, the top surface 12 and the groove bottom surface 113 are just separated by the distance D, so that the positioning effect can be achieved through the second end surface 211 and the first end surface 12, and the top surface 12 and the groove bottom surface 113 are prevented from being attached to each other.

In summary, the above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A concave-convex matching structure that can be connected in a semi-vacuum, characterized in that, comprising:

The first joint has a groove, the groove has a connected groove wall surface and a groove bottom surface, and the groove bottom surface is connected to one end of the groove wall surface, the groove has a central axis, and the central axis is along the extending in the axial direction, the groove wall surface has a first axial length along the axial direction;

The second coupling piece has a connected body portion and a protruding post, the protruding post is inserted into the groove, the protruding post has an outer wall surface and a top surface, and the top surface is located at one end of the outer wall surface , the outer wall surface is closely attached to the groove wall surface, the top surface faces the groove bottom surface, there is a distance between the top surface and the groove bottom surface, and the distance between the top surface and the groove bottom surface is The space between them is a negative pressure space, the outer wall surface has a second axial length along the axial direction, and the second axial length is greater than the first axial length.

2 . The concave-convex fitting structure capable of semi-vacuum connection according to claim 1 , wherein an angle is formed between the extension line of the groove wall surface and the central axis, and the angle is between 1 and 5 degrees. 3 .

3 . The concave-convex fitting structure capable of semi-vacuum connection according to claim 1 , wherein the angle is 1 degree. 4 .

4 . The concave-convex matching structure capable of semi-vacuum connection according to claim 1 , wherein the first coupling member is made of an elastically deformable material. 5 .

5 . The concave-convex matching structure capable of semi-vacuum connection according to claim 1 , wherein the groove is a conical groove, and the wall surface of the groove is a conical surface. 6 .

6 . The concave-convex fitting structure capable of semi-vacuum connection according to claim 1 , wherein the first coupling member has a first end, the groove is recessed on the first end, and the first The end has a first end surface, the body portion of the second coupling piece has a second end surface, the second end surface is connected with the outer wall surface, and the extension direction of the second end surface is different from the extension direction of the outer wall surface, The second end surface, the outer wall surface and the top surface together form a stepped shape, and the second end surface is tightly abutted against the first end surface.

7 . The semi-vacuum-connectable concave-convex matching structure according to claim 1 , wherein the second coupling member further has an adhesive layer, which is combined with and covers the outer wall surface of the convex column, so that the adhesive layer is formed. 8 . close to the groove wall.

8 . The semi-vacuum-connectable concave-convex matching structure according to claim 7 , wherein the adhesive layer is further bonded and covered on the top surface of the convex column. 9 .