TWI808753B - Pipe coupling structure - Google Patents

Abstract

The present invention provides a pipe coupling structure, which includes a first pipe, a second pipe, and an elastic member. One end of the first pipe is provided with an opening end, and the first pipe is provided with a first through-hole along a radial direction. The second pipe is sleeved to the first pipe via the opening end. The second pipe is provided with a second through-hole along a radial direction. The elastic member is provided with an elastic portion and a clamping flange connected to the elastic portion. The elastic portion is arranged in the first pipe. The clamping flange is inserted into the first and second through-holes. One end of the clamping flange opposite to the elastic portion is provided with a guide surface. A distance from one end of the guide surface adjacent to the opening end to the elastic portion forms a first height, and a distance from another end of guide surface opposite to the opening end to the elastic portion forms a second height. The first height is smaller than the second height. Thus, the pipe coupling structure achieves the effect of easy assembly and disassembly.

Description

Combination structure of pipe fittings

The present invention mainly discloses a combined structure of pipe fittings, especially the combined structure of pipe fittings which is easy to assemble and disassemble.

Please refer to the Chinese Patent No. 302989 "Positioning Structure of Telescopic Tube", which is a positioning structure of telescopic tube. The telescopic tube is composed of inner and outer tubes and a positioning spring. fit together.

However, the assembly sequence of the telescopic tube is to first put the positioning spring into the inner tube and allow the knob to pass through the hole, and then connect the outer tube to the inner tube. However, when the outer tube is sleeved on the inner tube, the knob will hinder it. Therefore, the knob must be pressed until it is completely retracted into the hole, and the outer tube is inserted into the inner tube at the same time to complete the assembly. Not only do multiple actions need to be performed at the same time during assembly, it is not easy to operate, but the surface area of the knob is small and it will rebound and it is difficult to press, making it difficult to assemble the telescopic rod. When adjusting the length of the telescopic rod, it is also necessary to press the convex button to retract into the perforation to adjust the length, and the same difficult-to-operate situation will also occur.

In view of the lack of the above-mentioned conventional structure, the inventors have designed a pipe assembly structure, which can overcome all the shortcomings of the above-mentioned conventional structure.

The main purpose of the pipe assembly structure of the present invention is to provide a pipe assembly structure comprising a first pipe, a second pipe and an elastic member. One end of the first pipe is provided with an open end. The first pipe is provided with a first perforation along its radial direction. Connected to the first through hole and the second through hole, the locking flange is provided with a guide surface at an end opposite to the elastic portion. The distance from the end of the guide surface adjacent to the open end to the elastic portion forms a first height, and the distance from the end of the guide surface opposite to the open end to the elastic portion forms a second height. The first height is smaller than the second height. The pipe assembly structure achieves the effect of easy assembly and disassembly through the above structure.

The first through hole is provided with a first wide portion and a first narrow portion connected to the first wide portion adjacent to the opening end. The second through hole is provided with a second wide portion and a second narrow portion connected to the second wide portion. The locking flange is provided with a first locking portion and a second locking portion connected to the first locking portion. The width in the circumferential direction of the pipe forms a first width, and the width of the second engaging portion along the circumferential direction of the first pipe forms a second width, and the second width is smaller than the first width.

The cross-sectional shape of the first locking part is the same as that of the first wide part and the second wide part, the cross-sectional shape of the second locking part is the same as that of the first narrow part and the second narrow part, the cross-sectional shape of the first locking part is circular, the cross-sectional shape of the second locking part is square, and the guide surface is arranged at an end of the second locking part opposite to the elastic part.

The distance from one end adjacent to the first locking portion to the opposite end of the second locking portion forms a length, and the length is greater than the first width.

The elastic portion includes a first straight section, a second straight section and a curved section. The first straight section and the second straight section are respectively connected to opposite ends of the curved section. The curved section is U-shaped. The locking flange is connected to the first straight section. The first straight section is connected to the curved section extending along the tangential direction of the curved section. An angle is formed between the second straight section and the curved section, and the angle is greater than 90 degrees and less than 180 degrees.

The guiding surface is planar, and the guiding surface is neither perpendicular nor parallel to the first straight section.

Other objects, advantages and novelties of the present invention will be more apparent from the following detailed description and associated drawings.

Regarding the technology, means and effects used in the present invention, a preferred embodiment is given and described in detail below with the drawings. This is for illustration only, and is not limited by this structure in the patent application.

Referring to Fig. 1 to Fig. 6, it is the three-dimensional appearance view of the storage rack, the three-dimensional exploded view, the plane exploded view, the sectional structure diagram and the action diagram of the pipe assembly structure of the present invention. The pipe assembly structure 10 of the present invention includes a first pipe 20, a second pipe 30 and an elastic member 40; wherein:

One end of the first tube 20 is provided with an open end 21 , and the first tube 20 is provided with a first through hole 22 along its radial direction.

The second tube 30 is sleeved on the first tube 20 through the open end 21 , and the second tube 30 is provided with a second through hole 31 along its radial direction.

The elastic member 40 is provided with an elastic portion 41 and a locking flange 42 connected to the elastic portion 41. The elastic portion 41 is disposed in the first tube 20. The locking flange 42 is inserted into the first through hole 22 and the second through hole 31 at the same time. The end of the locking flange 42 opposite to the elastic portion 41 is provided with a guide surface 421. The height H1, the distance from the end of the guiding surface 421 opposite to the opening end 21 to the elastic portion 41 forms a second height H2, the first height H1 is smaller than the second height H2.

The first through hole 22 is provided with a first wide portion 221 and a first narrow portion 222 connected to the first wide portion 221 adjacent to the opening end 21. The second through hole 31 is provided with a second wide portion 311 and a second narrow portion 312 connected to the second wide portion 311. The locking flange 42 is provided with a first locking portion 422 and a second locking portion 423 connected to the first locking portion 422. In the first wide portion 221 and the second wide portion 311 , the second locking portion 423 is disposed in the first narrow portion 222 and the second narrow portion 312 , the first locking portion 422 forms a first width W1 along the circumferential direction of the first tube 20 , and the second locking portion 423 forms a second width W2 along the circumferential width of the first tube 20 , and the second width W2 is smaller than the first width W1.

The cross-sectional shape of the first engaging portion 422 is the same as that of the first wide portion 221 and the second wide portion 311 , the cross-sectional shape of the second engaging portion 423 is the same as that of the first narrow portion 222 and the second narrow portion 312 , the cross-sectional shape of the first engaging portion 422 is circular, the cross-sectional shape of the second engaging portion 423 is square, and the guiding surface 421 is disposed at an end of the second engaging portion 423 opposite to the elastic portion 41 .

The distance from one end adjacent to the first locking portion 422 to the opposite end of the second locking portion 423 forms a length L, and the length L is greater than the first width W1.

The elastic portion 41 includes a first straight section 411, a second straight section 412 and a curved section 413. The first straight section 411 and the second straight section 412 are respectively connected to opposite ends of the curved section 413. The curved section 413 is U-shaped. The locking flange 42 is connected to the first straight section 411. An angle A is formed between the straight section 412 and the curved section 413 , and the angle A is greater than 90 degrees and less than 180 degrees.

The guiding surface 421 is planar, and the guiding surface 421 is neither perpendicular nor parallel to the first straight section 411 .

The pipe assembly structure 10 achieves the effect of easy assembly and disassembly through the above structure. The pipe assembly structure 10 can be arranged on the shelf 90 and used to combine the two-layer board 91. The first pipe 20 and the second pipe 30 can be respectively connected to the two-layer board 91. When the second pipe 30 is sleeved on the first pipe 20, the second pipe 30 can slide along the guide surface 421 to be smoothly socketed on the first pipe 20. When the first pipe 20 and the second pipe 30 need to be disassembled, the locking flange 42 can also provide a larger pressing area. , for the user to easily press the locking flange 42 into the first tube 20 .

With regard to the above, it can be concluded that the present invention has the following advantages:

1. The combined structure of the pipe fittings of the present invention, wherein the combined structure of the pipe fittings includes a first pipe, a second pipe and an elastic member. One end of the first pipe is provided with an open end, and the first pipe is provided with a first perforation along its radial direction. The first through hole and the second through hole, the locking flange is provided with a guide surface at one end opposite to the elastic portion, the distance from the end adjacent to the opening end of the guide surface to the elastic portion forms a first height, and the distance from the end of the guide surface opposite to the open end to the elastic portion forms a second height, the first height is smaller than the second height, and the pipe assembly structure achieves the effect of easy assembly and disassembly through the above structure.

But the above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. Therefore, all changes in numerical values or replacement of equivalent elements, or equivalent changes and modifications made according to the patent scope of the present invention should still fall within the scope of the patent of the present invention.

10: Combination structure of pipe fittings 20: First Tube 21: Open end 22: First piercing 221: The first wide part 222: The first narrow part 30: Second pipe 31: Second piercing 311: second wide part 312: the second narrow part 40: Elastic parts 41: elastic part 411: The first straight section 412: The second straight section 413: Bending section 42: Snap flange 421: guide surface 422: The first locking part 423: the second locking part 90: shelf 91: laminate A: Angle H1: first height H2: second height L: Length W1: first width W2: second width

Figure 1: It is the three-dimensional appearance diagram of the storage rack. Fig. 2: is the three-dimensional exploded view of the combined structure of the pipe fittings of the present invention. Fig. 3: It is the plane exploded view of the combined structure of pipe fittings of the present invention. Fig. 4: is the cross-sectional structural view of the combined structure of the pipe fittings of the present invention. Figure 5: Action diagram for disassembling the combined structure of the pipe fittings of the present invention. Fig. 6: It is an action diagram of assembling the combined structure of the pipe fittings of the present invention.

10: Combination structure of pipe fittings

20: First Tube

21: Open end

22: First piercing

30: Second pipe

31: Second piercing

41: elastic part

411: The first straight section

412: The second straight section

413: Bending section

42: Snap flange

421: guide surface

A: Angle

H1: first height

H2: second height

Claims (5)

A pipe assembly structure, which includes: a first pipe, one end of the first pipe is provided with an open end, the first pipe is provided with a first perforation along its radial direction, the first perforation is provided with a first wide part and a first narrow part connected to the side of the first wide part adjacent to the open end; a second pipe, the second pipe is sleeved on the first pipe by the open end, the second pipe is provided with a second perforation along its radial direction, and the second perforation is provided with a second wide part and a second narrow part connected to the second wide part; An elastic member, the elastic member is provided with an elastic part and a locking flange connected to the elastic part, the elastic part is arranged in the first tube, the locking flange is inserted into the first through hole and the second through hole at the same time, the end of the locking flange opposite to the elastic part is provided with a guide surface, the distance from the end of the guide surface adjacent to the opening end to the elastic part forms a first height, the distance from the end of the guide surface opposite to the open end to the elastic part forms a second height, and the first height is less than At the second height, the latching flange is provided with a first latching portion and a second latching portion connected to the first latching portion, the first latching portion is disposed in the first wide portion and the second wide portion, the second latching portion is disposed in the first narrow portion and the second narrow portion, the first latching portion forms a first width along the circumferential direction of the first tube, and the second latching portion forms a second width along the circumferential direction of the first tube, the second width being smaller than the first width. The combined structure of pipe fittings as described in claim 1, wherein the cross-sectional shape of the first locking part is the same as that of the first wide part and the second wide part, the cross-sectional shape of the second locking part is the same as the shape of the first narrow part and the second narrow part, the cross-sectional shape of the first locking part is circular, the cross-sectional shape of the second locking part is square, and the guide surface is arranged at the end of the second locking part opposite to the elastic part. The combined pipe structure according to claim 2, wherein the distance from one end adjacent to the first locking portion to the opposite end of the second locking portion forms a length, and the length is greater than the first width. The combined structure of pipe fittings as described in claim 3, wherein the elastic portion includes a first straight section, a second straight section and a curved section, the first straight section and the second straight section are respectively connected to opposite ends of the curved section, the curved section is U-shaped, the locking flange is connected to the first straight section, the first straight section is connected to the curved section extending along the tangential direction of the curved section, an included angle is formed between the second straight section and the curved section, and the included angle is greater than 90 degrees and less than 18° 0 degrees. The combined structure of pipe fittings according to Claim 4, wherein the guiding surface is planar, and the guiding surface is neither perpendicular nor parallel to the first straight section.

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