TW202106208A - Concave and convex fit structure that can be semi-vacuum connected - Google Patents

Abstract

A concave and convex fit structure that can be semi-vacuum connected, which includes a first connecting member having a groove, the groove has a wall surface and a bottom surface connected to the wall surface, a second connecting member having a body and a protruded rod connected to the body and inserted in the groove, the protruded rod has an outer wall surface and a top surface located at one end of the outer wall surface, the outer wall surface is attached to the wall surface, the top surface faces the bottom surface, a negative pressure space is arranged between the top surface and the bottom surface, the pressure in the negative pressure space is less than the external pressure, which can resist the reverse force applied by the user to the first and second connecting members, making the first connecting member stably connected to the second connecting member.

Description

Concave-convex mating structure capable of semi-vacuum connection

The present invention relates to a combination structure, in particular to a concave-convex matching structure.

Generally, the conventional combination structure adopts thread fitting. Taking the combination structure of environmentally friendly chopsticks as an example, in order to facilitate the storage of environmentally friendly chopsticks, the chopsticks body is designed in two sections, one of which has a screw groove at one end. The other chopstick body is protruding with a screw lock part. When the user wants to use the environmentally friendly chopsticks, he will screw the screw groove with the screw lock part through the screw groove to combine the two chopstick bodies for easy use. On the contrary, when When the user wants to store the aforesaid chopsticks body after use, he only needs to rotate the block and withdraw the screw lock part from the screw groove to make the chopsticks weight in two sections, which is convenient for storage;

However, the conventional joint structure through the threaded fit is easy to cause the joint relationship to be unstable or even disconnected due to vibration and slight rotation. In the case of chopsticks, the user may even move the chopsticks or rotate the chopsticks to cause the screw lock part to fall from the screw groove. Withdrawal leads to unstable bonding relationship, so a concave-convex matching structure with tight bonding relationship is needed.

The present invention provides a concave-convex matching structure whose main purpose is to make the combination relationship more stable.

To achieve the foregoing objective, the concave-convex mating structure capable of semi-vacuum connection of the present invention includes:

A first coupling member has a groove, the groove has a 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 along the central axis Extending in an axial direction, the groove wall surface has a first axial length along the axial direction;

A second coupling member having a body portion connected with a protruding column, the protruding column is inserted in the groove, the protruding column 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 space between the top surface and the groove bottom surface is a negative pressure In the 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.

It can be seen from the foregoing that the present invention mainly forms the negative pressure space by separating the top surface and the bottom surface of the groove by the distance, and the pressure in the negative pressure space is less than the external pressure, thereby being able to resist the user's The force applied in the opposite direction from the first coupling element and the second coupling element further stabilizes the coupling relationship between the first coupling element and the second coupling element.

The first embodiment of the concave-convex mating structure capable of semi-vacuum connection of the present invention is shown in Figs. 1 and 2, which includes:

A first coupling member 10 is made of an elastically deformable material. The first coupling member 10 has a groove 11. In this embodiment, the groove 11 is a tapered groove, and the groove 11 has a joint A groove wall surface 112 and a groove bottom surface 113. 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 along the central axis A. Extending along an axial direction X, an angle between the extension line Y of the groove wall surface 112 and the central axis A is between 1 and 5 degrees, preferably 1 degree, and the groove wall surface 112 is along the axis X has a first axial length L1;

Preferably, the first coupling member 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;

A second coupling member 20 has a body portion 21 and a protruding post 22 connected to each other. The protruding post 22 is inserted into the groove 11, and the protruding post 22 has an outer wall surface 221 and a top surface 222. The protruding column 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 tightly attached to the groove wall surface 112, and the top surface 222 faces the groove bottom surface 113. When the protrusion 22 is completely inserted into the groove 11, the top surface 222 and the groove bottom surface 113 are separated by a distance D. At this time, the space between the top surface 222 and the groove bottom surface 113 is defined as a negative pressure space 30, and the outer wall surface 221 is along the The axial direction X has a second axial length L2, and the second axial length L2 is greater than the first axial length L1;

When the protrusion 22 of the second coupling member 20 is inserted into the groove 11 of the first coupling member 10, since the first coupling member 10 is made of an elastically deformable material, the groove 11 is covered by the groove 11 The protruding column 22 is slightly stretched so that the outer wall surface 221 is close to the groove wall surface 112.

Preferably, the body portion 21 of the second coupling member 20 has a second end surface 211, the second end surface 211 is engaged with the outer wall surface 221, and the extension direction of the second end surface 211 is different from the extension direction of the outer wall surface 221 , The second end surface 211, the outer wall surface 221, and the top surface 222 jointly form a stepped shape, and the second end surface 211 abuts against the first end surface 12.

In the second embodiment, please refer to FIG. 3, which additionally includes:

The second connecting member 20 further has a glue layer 23, which is combined with and covers the outer wall 221 of the protruding column 22, so that the glue layer 23 is in close contact with the groove wall 112, and the glue layer 23 is made of rubber or other high friction It is made of a coefficient material, and through the high friction characteristic of the adhesive layer 23, the bonding relationship between the first coupling member 10 and the second coupling member 20 is more stable.

Preferably, the adhesive layer 23 is further combined to cover the top surface 222 of the protrusion 22.

It can be seen from the foregoing that the present invention mainly forms the negative pressure space 30 by spaced the distance D between the top surface 222 and the groove bottom surface 112, and the pressure in the negative pressure space 30 is less than the external pressure, thereby enabling Resisting the user's opposite force applied to the first coupling member 10 and the second coupling member 20, thereby making the coupling relationship between the first coupling member 10 and the second coupling member 20 more stable.

In addition, in the present invention, the outer wall surface 221 is tightly attached to the groove wall surface 112 to form an airtight measure, thereby ensuring that the negative pressure space 30 maintains a negative pressure state.

In addition, the present invention can further ensure that the second end surface 211 abuts against the first end surface 12 to form another airtight measure to further ensure that the negative pressure space 30 maintains a negative pressure state. Moreover, when the second end surface When the end surface 211 abuts against the first end surface 12, the top surface 12 and the groove bottom surface 113 are exactly 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, avoiding the The top surface 12 and the bottom surface 113 of the groove are attached to each other.

10: The first combination 10A: first end 11: Groove 112: Groove Wall 113: groove bottom 12: The first end face 20: The second assembly 21: Body part 211: second end face 22: convex column 221: Outer Wall 222: top surface 23: Glue layer 30: negative pressure space A: Central axis D: distance L1: first axial length L2: second axial length X: axial Y: extension line

Figure 1 is a three-dimensional schematic diagram of the concave-convex mating structure capable of semi-vacuum connection according to the present invention. Fig. 2 is a cross-sectional view of the first embodiment of the concave-convex mating structure capable of semi-vacuum connection according to the present invention. Fig. 3 is a cross-sectional view of the second embodiment of the concave-convex mating structure capable of semi-vacuum connection according to the present invention.

10: The first combination

10A: first end

11: Groove

112: Groove Wall

113: groove bottom

12: The first end face

20: The second assembly

21: Body part

211: second end face

22: convex column

221: Outer Wall

222: top surface

30: negative pressure space

A: Central axis

D: distance

L1: first axial length

L2: second axial length

X: axial

Y: extension line

Claims (8)

A concave-convex mating structure capable of semi-vacuum connection, including: A first coupling member has a groove, the groove has a groove wall surface and a groove bottom surface, and the groove The groove bottom surface is connected to one end of the groove wall surface, the groove has a central axis, the central axis extends along an axial direction, and the groove wall surface has a first axial length along the axial direction; A second coupling member having a body portion connected with a protruding post, the protruding post is inserted in the groove, The protruding column has an outer wall surface and a top surface, 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 bottom surface of the groove, and the top surface and the groove There is a distance between the bottom surfaces, the space between the top surface and the bottom surface of the groove 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. Axial length. The concave-convex mating structure capable of semi-vacuum connection as described in item 1 of the scope of patent application, wherein an angle between the extension line of the groove wall and the central axis is between 1 and 5 degrees. As described in item 1 of the scope of patent application, the concave-convex mating structure capable of semi-vacuum connection, wherein the angle is 1 degree. As described in item 1 of the scope of patent application, the concave-convex mating structure capable of semi-vacuum connection, wherein the first coupling member is made of an elastically deformable material. As described in item 1 of the scope of patent application, the concave-convex mating structure capable of semi-vacuum connection, wherein the groove is a tapered groove, and the wall surface of the groove is a conical surface. The concave-convex mating structure capable of semi-vacuum connection as described in claim 1, wherein the first coupling member has a first end, the groove is recessed on the first end, and the first end has a first end. One end surface, the body portion of the second coupling member has a second end surface, the second end surface is engaged with the outer wall surface, the extension direction of the second end surface is different from the extension direction of the outer wall surface, so that the second end surface is The wall surface and the top surface jointly form a stepped shape, and the second end surface abuts against the first end surface. The concave-convex mating structure capable of semi-vacuum connection as described in item 1 of the scope of patent application, 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 closely adheres to The wall of the groove. As described in item 7 of the scope of patent application, the concave-convex mating structure capable of semi-vacuum connection, wherein the adhesive layer is additionally combined to cover the top surface of the convex column.

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