TWM509300U - Quick-connecting pipe structure - Google Patents

Description

Tube quick connect structure

The present invention relates to a pipe quick-connect structure, and more particularly to a structure in which a pipe member can be quickly joined.

As shown in FIG. 8, the conventional tube quick-connecting structure mainly includes an inner tube 91 and an outer tube 92. One end of the inner tube 91 has two symmetric sliding grooves 911, and one stopper 912 is coupled to one end of the arm 913. The stopper 912 can be pressed and moved downward, and when the pressing force disappears, it is reset by the elasticity of the arm 913; the outer tube 92 has two sliding rails 921 at one end and has a side hole 922.
When the inner tube 91 and the outer tube 92 are to be engaged, the sliding groove 911 at one end of the inner tube can be aligned with the sliding rail 921 at one end of the outer tube 92, and the inner tube 91 can be inserted into the outer tube 92 until the stopper 912 is stuck. Entering the side hole 922, the inner tube 91 is blocked from the outer tube 92 by the stopper 912; if the inner tube 91 and the outer tube 92 are to be separated, the stopper 912 is pressed away from the side hole 922 without blocking the outer tube 92, the inner tube 91 can be removed from one end of the outer tube 92.
However, although the above-described tube quick-connecting structure has the effect of quick disassembly and assembly of the pipe fitting, the pipe quick-connecting structure must have the chute 911, the stopper 912 and the arm 913 in the inner pipe 91, and the outer pipe 92 must have the sliding rail 921. As well as the side holes 922, it is not difficult to find that the structure has such a complexity, and thus the manufacturing process is complicated and the cost is high.

The main purpose of the present invention is to solve the above problems and provide a tube quick-connect structure, which achieves the effect of quick joint fitting by a simple structure, and has the advantages of simple manufacture and relatively low cost.
For the purposes of the foregoing, this creative department includes:
An inner tube having a long groove recessed in the outer peripheral wall, the long groove extending along the length of the inner tube to the end of the tube, the both sides of the long groove having an obliquely opening from the bottom of the groove to the outer peripheral wall Ditch wall
An outer tube having an inner diameter having an inner diameter larger than a diameter of the outer peripheral wall, wherein the inner wall of the inner hole has at least one convex portion, and the convex portion has a length and a width smaller than a depth and a width of the long groove. The longest distance from the edge of the protrusion to the opposite wall of the inner hole is slightly smaller than the diameter of the outer wall of the inner tube, and the longest distance is greater than the inner circumference of the inner tube to the outer circumference of the long groove The longest distance of the wall;
The outer tube engages the inner tube in the outer tube with its convex portion aligned with the open groove at the opening of the inner tube of the inner tube, and the convex portion is confined in the long groove to allow the outer tube and The inner tube expands and contracts in a linear direction, relatively rotates the outer tube and the inner tube, and the convex portion leaves the long groove along the groove wall to the outer peripheral wall, and the inner tube is provided by the convex portion and the convex portion The opposing wall of the hole abuts against the inner bore of the outer tube.
Wherein the convex portion is in a dot shape;
Alternatively, the convex portion is elongated and the longitudinal direction extends along the longitudinal direction of the outer tube.
Wherein the cross section of the outer tube is circular;
Alternatively, the outer tube has a polygonal cross section.
Wherein, the groove of the long groove on both sides of the groove bottom has an outer arc shape and gradually opens obliquely to the outer peripheral wall.
The above and other objects and advantages of the present invention will become more apparent from the detailed description and the accompanying drawings.
Of course, the present invention is allowed to differ in some of the parts, or the arrangement of the parts, but the selected embodiments are described in detail in the present specification, and the construction thereof is shown in the drawings.

(customized part)
91‧‧‧Inside
911‧‧‧ chute
912‧‧ ‧block
913‧‧‧ Arm
92‧‧‧External management
921‧‧‧rails
922‧‧‧ side hole (this part of the creation)
1‧‧‧inner tube
11‧‧‧Long ditch
111‧‧‧ bottom
112‧‧‧Ditch wall
12‧‧‧ peripheral wall
13‧‧‧pipe end
2‧‧‧External management
21‧‧‧ inside hole
211‧‧‧ hole wall
22‧‧‧ convex
221‧‧‧ edge
2A‧‧‧External management
21A‧‧‧ 内孔
22A‧‧‧ convex
D‧‧‧diameter
L1‧‧‧ longest distance
L2‧‧‧ longest distance

Figure 1 is a schematic view showing the engagement of the inner and outer tubes of the first embodiment of the present invention.
Fig. 2 is a schematic view showing the alignment of the inner and outer tubes in the first embodiment of the present invention.
Fig. 3 is a cross-sectional structural view showing the convex portion of the outer tube of the first embodiment of the present invention in the long groove of the inner tube.
Fig. 4 is a schematic view showing the expansion and contraction of the inner tube relative to the outer tube in the first embodiment of the present invention.
Fig. 5 is a cross-sectional structural view showing the convex portion of the outer tube of the first embodiment of the present invention abutting against the outer peripheral wall of the inner tube.
Figure 6 is a schematic view showing the engagement of the inner and outer tubes of the second embodiment of the present invention.
Fig. 7 is a cross-sectional structural view showing the convex portion of the outer tube of the second embodiment of the present invention abutting against the outer peripheral wall of the inner tube.
Figure 8 is a structural view of the conventional quick-connect structure of the tube.

Please refer to FIG. 1 to FIG. 7 , which shows the structure of the embodiment selected for the creation of the present invention. This is for illustrative purposes only and is not limited by the structure in the patent application.
This embodiment provides a tube quick-connect structure, as shown in FIG. 1, which includes an inner tube 1 and an outer tube 2, wherein:
As shown in FIGS. 2 to 3, the inner tube 1 has a long groove 11 which is recessed in the outer peripheral wall 12 of the inner tube 1, and the long groove 11 extends to the tube end 13 along the length of the inner tube 1. Open, the long groove 11 has a groove wall 112 which is gradually opened obliquely to the outer peripheral wall 12 by the groove bottom 111.
As shown in FIGS. 2 to 3, the outer tube 2 has a circular cross section in this embodiment, and has an inner hole 21 having an inner diameter larger than the diameter of the outer peripheral wall 12, and the inner hole 21 The hole wall 211 protrudes from at least one convex portion. In the embodiment, the two convex portions 22 are respectively located on the outer tube 2, and the convex portion 22 has a length and a width smaller than the width and width of the long groove 11 and the convex portion. The longest distance L1 from the end edge 221 of the 22 to the opposite hole wall 211 in the inner hole 21 is slightly smaller than the diameter D of the outer peripheral wall 12 of the inner circular tube 1, and the longest distance L1 is larger than the groove bottom of the inner circular tube 1 at the long groove 11. 111 to the longest distance L2 of the opposite peripheral wall 12.
In the embodiment, the convex portion 22 has a dot shape; in different embodiments, the convex portion may be elongated (not shown), and the longitudinal direction extends along the longitudinal direction of the outer tube 2. In addition, the groove 112 of the long groove 11 of the present embodiment has an outer arc shape on both sides of the groove bottom 111 and is gradually opened obliquely to the outer peripheral wall 12.
As shown in FIGS. 2 and 4, when the inner tube 1 and the outer tube 2 are to be joined, the outer tube 2 is aligned with the convex portion 22 at the opening of the long groove 11 at the edge of the inner tube 1, and is joined. The inner tube 1 is in the outer tube 2, and the convex portion 22 is confined in the long groove 11 to allow the outer tube 2 and the inner tube 1 to expand and contract in a linear direction. After the length of the telescopic length is selected, as shown in FIG. 5, the outer tube 2 and the inner tube 1 are relatively rotated, and the convex portion 22 is separated from the long groove 11 to the outer peripheral wall 12 along the groove wall 112. The inner tube 1 is abutted against the inner wall 21 of the outer tube 2 by the convex portion 22 and the hole wall 211 opposite to the convex portion 22.
It is not difficult to find from the above description that the present invention has an advantage in that the outer peripheral wall 12 of the inner tube 1 has a long groove 11 and the hole wall 211 of the outer tube 2 has a convex portion 22, so that the inner tube 1 and the outer tube 2 can be When engaging, the convex portion 22 of the outer tube 2 is in the long groove 11 of the inner circular tube 1, and the relative movement of the outer tube 2 and the inner circular tube 1 during expansion and contraction can be restricted to be a linear direction, and the outer tube 2 is fixed. When the tube 1 is used, it is only necessary to rotate the outer tube 2 and the inner tube 1 relative to each other, so that the convex portion 22 of the outer tube 2 slides out of the long groove 11 along the groove wall 112, and abuts the hole of the inner tube 1 at the outer tube 2. Within the wall 211, the effect of quickly engaging the tubular member is achieved by this simple structure, and the effect of being simple to manufacture and relatively low in cost is achieved.
Of course, there are still many examples of this creation, only the details change. Please refer to FIGS. 6-7, which is a second embodiment of the present invention. The main difference from the first embodiment is that the outer tube 2A has a polygonal cross section, and the diameter of the outer peripheral wall 12 of the inner tube 1 is several. Near the diameter of the inner circle of the outer tube 2A, the outer tube 2A has a convex portion 22A which is as the convex portion 22 described in the first embodiment, whereby the same effect as the first embodiment can be attained.
The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention.
From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

1‧‧‧inner tube

11‧‧‧Long ditch

111‧‧‧ bottom

112‧‧‧Ditch wall

12‧‧‧ peripheral wall

2‧‧‧External management

21‧‧‧ inside hole

211‧‧‧ hole wall

22‧‧‧ convex

D‧‧‧diameter

L1‧‧‧ longest distance

L2‧‧‧ longest distance

Claims (6)

[Item 1] A tube quick connect structure, the system comprising:
An inner tube having a long groove recessed in the outer peripheral wall, the long groove extending along the length of the inner tube to the end of the tube, the both sides of the long groove having an obliquely opening from the bottom of the groove to the outer peripheral wall Ditch wall
An outer tube having an inner diameter having an inner diameter larger than a diameter of the outer peripheral wall, wherein the inner wall of the inner hole has at least one convex portion, and the convex portion has a length and a width smaller than a depth and a width of the long groove. The longest distance from the edge of the protrusion to the opposite wall of the inner hole is slightly smaller than the diameter of the outer wall of the inner tube, and the longest distance is greater than the inner circumference of the inner tube to the outer circumference of the long groove The longest distance of the wall;
The outer tube engages the inner tube in the outer tube with its convex portion aligned with the open groove at the opening of the inner tube of the inner tube, and the convex portion is confined in the long groove to allow the outer tube and The inner tube expands and contracts in a linear direction, relatively rotates the outer tube and the inner tube, and the convex portion leaves the long groove along the groove wall to the outer peripheral wall, and the inner tube is provided by the convex portion and the convex portion The opposing wall of the hole abuts against the inner bore of the outer tube. [Item 2] The tube quick-connect structure according to claim 1, wherein the convex portion is in a dot shape. [Item 3] The tube quick-connect structure according to claim 1, wherein the convex portion is elongated and the longitudinal direction extends along a length of the outer tube. [Item 4] The tube quick-connect structure according to claim 1, wherein the outer tube has a circular cross section. [Item 5] The tube quick-connect structure according to claim 1, wherein the outer tube has a polygonal cross section. [Item 6] The pipe quick-connecting structure according to claim 1, wherein the groove of the long groove on both sides of the groove bottom has an outer arc shape and is obliquely opened to the outer peripheral wall.