Connecting pipe assembly

Abstract

The utility model discloses a connecting pipe assembly which comprises a first pipe section and a second pipe section. The first pipe section comprises a first pipe body and a first joint piece fixedly arranged in the front end part of the first pipe body, a first through hole is formed in the first joint piece, and a second through hole is correspondingly formed in the first pipe body; the second pipe section comprises a second pipe body and a second joint piece, the front end of the second pipe body is of a necking portion structure capable of being inserted into the first joint piece, a third through hole matched with the first through hole is correspondingly formed in the necking portion, and an elastic protruding portion arranged in the third through hole is correspondingly arranged on the second joint piece. Anti-falling can be achieved through clamping of the elastic protruding part and the first through hole, and separation can be conveniently achieved by pressing the elastic protruding part to move downwards. The thin-wall pipe connecting device is simple in structure, convenient to operate and suitable for connection between thin-wall pipe bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a connecting pipe assembly. Background Art

[0002] With the rapid development of society, connecting pipe assemblies that can be quickly disassembled and assembled are widely used in products such as coat racks, mop rods, storage racks, shoe racks, and fishing rods. The pipe sections of existing connecting pipe assemblies are mostly connected by spirals or snaps, and the pipe sections generally need to have sufficient wall thickness to ensure the connection strength between the ends. At the same time, the spiral structure has a complicated operating experience, cannot be quickly disassembled and assembled, and is difficult to achieve steering and fixing. The snap method often requires spring parts, has a complex structure, and is easy to damage. Utility Model Content

[0003] The utility model aims to overcome the defects in the prior art and provides a connecting pipe assembly which has a simple structure and is easy to operate and is suitable for connecting thin-walled pipes.

[0004] To achieve the above-mentioned object, the utility model provides a connecting pipe assembly, which at least comprises a first pipe section and a second pipe section which are detachably connected;

[0005] The first pipe section includes a first pipe body and a first joint member fixed in the front end of the first pipe body, the first joint member is provided with a first through hole, and the first pipe body is provided with a second through hole corresponding to the first through hole and communicating with the first through hole;

[0006] The second pipe section includes a second pipe body and a second joint piece fixed in the rear end of the second pipe body, the rear end of the second pipe body is a necking structure that can be inserted into the first joint piece, the necking portion is correspondingly provided with a third through hole that matches the first through hole, the second joint piece is correspondingly provided with an elastic protrusion placed in the third through hole, and the elastic protrusion is constructed as follows:

[0007] When the connecting pipe assembly is assembled, the elastic protrusion can be inserted into the first through hole through the first pipe segment and the second pipe segment, thereby achieving a stable connection between the first pipe segment and the second pipe segment;

[0008] When the connecting pipe assembly is disassembled, the elastic protrusion can be pressed to disengage from the first through hole, thereby realizing convenient separation of the first pipe section and the second pipe section.

[0009] It is further configured that: the first coupling member includes a first joint portion extending out of the first tube body, the front end portion of the first tube body is provided with a first notch groove, and the rear side of the first joint portion is correspondingly provided with a first limiting portion that cooperates with the first notch groove to limit rotation.

[0010] It is further configured that: the second joint includes a second joint portion extending out of the second tube body, the end of the necked portion is provided with a second notch groove, and the front side of the second joint portion is correspondingly provided with a second limiting portion that cooperates with the second notch groove to limit rotation.

[0011] It is further configured that: a rear end portion of the second joint portion is provided with a stop groove;

[0012] A stopper portion is protruded on the inner wall of the first joint member and matches with the stopper groove to limit rotation.

[0013] It is further configured that: the first joint piece is installed in the first tube body by interference fit, and a plurality of first convex strip structures for enhancing the fitting effect are arranged on the outer wall of the first joint piece.

[0014] It is further configured as follows: the second engaging member is installed in the necked portion by interference fit, and a plurality of second convex strip structures for enhancing the fitting effect are arranged on the outer wall of the second engaging member.

[0015] It is further configured that: gaps are provided on both sides of the second engaging member corresponding to the elastic protrusion.

[0016] It is further configured that: the top end surface of the elastic protrusion is constructed as a slope structure that tilts upward from the back to the front.

[0017] It is further configured that: a flange extending into the second through hole is arranged around the opening edge of the first engaging member corresponding to the first through hole.

[0018] Compared with the prior art, the utility model has a simple and reasonable structure and is suitable for the connection between thin-walled tubes. The strength of the connecting tube part of the tube body can be effectively enhanced by placing a joint inside the tube body. At the same time, the tube sections can be connected by flanging and plugging, and anti-dropping can be achieved by engaging the elastic protrusion with the first through hole. Separation can be easily achieved by pressing the elastic protrusion downward. Furthermore, the elastic protrusion achieves elastic deformation through the gaps on both sides, and there is no need to add additional elastic components, thereby greatly simplifying the connection structure between the tube sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a connecting pipe assembly of the utility model;

[0020] Figure 2 It is a schematic diagram of the axial separation structure of the connecting pipe assembly.

[0021] The following reference numerals are marked on the drawings in conjunction with the drawings:

[0022] 100, first pipe section; 110, first pipe body; 111, second through hole; 112, first notch; 120, first joint; 121, first through hole; 122, first joint; 123, first limiting portion; 124, stopper; 125, first convex strip; 126, flange; 200, second pipe section; 210, second pipe body; 211, necking portion; 212, third through hole; 213, second notch; 220, second joint; 221, elastic protrusion; 222, second joint; 223, second limiting portion; 224, stopper; 225, second convex strip; 226, gap. DETAILED DESCRIPTION

[0023] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0024] The utility model discloses a connecting pipe component such as Figure 1 and Figure 2 As shown, it at least includes a first pipe segment 100 and a second pipe segment 200 which are detachably connected to each other, and a detachable matching structure is provided between the front end of the first pipe segment 100 and the rear end of the second pipe segment 200.

[0025] Specific as Figure 2 As shown, the first pipe section 100 includes a first pipe body 110, and a first joint member 120 fixedly mounted in the front end portion of the first pipe body 110, the first joint member 120 is provided with a first through hole 121111, and the first pipe body 110 is correspondingly provided with a second through hole, the first through hole 121111 and the second through hole are connected to form a limiting channel, and preferably, a flange 126 extending into the second through hole is arranged around the mouth of the first joint member 120 corresponding to the first through hole 121111; in this embodiment, the first pipe body 110 is a metal pipe, preferably with a wall thickness of 0.5-0. .55mm aluminum tube or aluminum-magnesium alloy tube; the first coupling member 120 is a cylindrical structure integrally made of plastic material and is installed in the front end of the first tube body 110 by interference fit, and a plurality of axially extending first convex strips 125 structures are arranged at intervals on the outer wall of the first coupling member 120. The first convex strips 125 can effectively enhance the matching effect between the first coupling member 120 and the first tube body 110; in some specific implementation schemes, the first coupling member 120 and the first tube body 110 can also be connected by inserting screws, or by a combination of screws and interference fit.

[0026] Specific as Figure 2As shown, the second pipe section 200 includes a second pipe body 210 and a second coupling member 220 fixedly mounted in the rear end portion of the first pipe body 110; the rear end portion of the second pipe body 210 is a constricted portion 211 structure that can be inserted into the first coupling member 120, and the constricted portion 211 is correspondingly provided with a third through hole 212 that matches the first through hole 121111, and the third coupling member is structured with an elastic protrusion 221 extending to the outside of the pipe body through the third through hole 212, and the elastic protrusion 221 is configured so that when the connecting pipe assembly is assembled, the elastic protrusion 221 can be inserted into the first through hole 121111 through the first pipe section 100 and the second pipe section 200 to achieve a stable connection between the first pipe section 100 and the second pipe section 200; when the connecting pipe assembly is disassembled, the elastic protrusion 221 can be pressed downward to make the elastic protrusion 2 21 moves downward to disengage from the first through hole 121111, thereby realizing convenient separation between the first pipe section 100 and the second pipe section 200; in the present embodiment, the second tube body 210 is a metal tube, preferably an aluminum tube or an aluminum-magnesium alloy tube with a wall thickness of 0.5-0.55 mm and a diameter of the rear end thereof is smaller than that of the main body; the second coupling member 220 is a cylindrical structure integrally manufactured from a plastic material and is installed in the constricted portion 211 of the second tube body 210 by interference fit, and a plurality of axially extending second convex strips 225 structures are arranged at intervals on the outer wall of the second coupling member 220, and the second convex strips 225 can effectively enhance the matching effect between the second coupling member 220 and the second tube body 210; in some specific implementation schemes, the second coupling member 220 and the second tube body 210 are connected by screws, or are connected by a combination of screws and interference fit.

[0027] In this embodiment, if Figure 2 As shown, axially extending gaps 226 are provided on both sides of the second coupling member 220 corresponding to the elastic protrusion 221. The elastic protrusion 221 is constructed to be mounted on the second coupling member 220 through connecting arms through the gaps 226 on both sides, so that the elastic protrusion 221 has a certain elastic deformation amount, so that it can be inserted into the first through hole 121111 or detached from the first through hole 121111 through deformation; preferably, the top end face of the elastic protrusion 221 is constructed as an inclined surface structure inclined upward from the back to the front, so that when the first pipe section 100 and the second pipe section are inserted into each other, the elastic protrusion 221 can automatically deform through the action of the inclined surface and the inner wall of the second coupling member 220.

[0028] In this embodiment, if Figure 2As shown, the first joint member 120 includes a first joint portion extending out of the first tube body 110, and the front end portion of the first tube body 110 is provided with a first notch groove 112, and the rear side of the first joint portion is correspondingly provided with a first limiting portion 123 extending backward to be placed in the first notch groove 112. The first limiting portion 123 cooperates with the first notch groove 112 to limit the rotation between the first joint member 120 and the first tube body 110, thereby effectively ensuring the connection stability; the second joint member 220 includes a second joint portion 222122 extending out of the second tube body 210, and the end portion of the necking portion 211 is provided with a second notch groove 213, and the second joint portion 222122 is provided with a second notch groove 213. The front side of the part 222122 is correspondingly provided with a second limiting portion 223 extending forward to be placed in the second notch groove 213. The cooperation between the second limiting portion 223 and the second notch groove 213 can limit the rotation between the second coupling member 220 and the second tube body 210, thereby effectively ensuring the connection stability; further preferably, the front end portion of the second joint part 222122 is structured with a stopping groove 224 structure, and a raised stopping portion 124 is correspondingly provided on the inner wall of the first joint part. The cooperation between the stopping portion 124 and the stopping groove 224 can limit the rotation between the first pipe section 100 and the second pipe section 200, thereby effectively ensuring the connection stability.

[0029] Compared with the prior art, the utility model has a simple and reasonable structure and is suitable for the connection between thin-walled tubes. The strength of the connecting tube part of the tube body can be effectively enhanced by placing a joint inside the tube body. At the same time, the tube sections can be connected by flanging and plugging, and anti-dropping can be achieved by engaging the elastic protrusion with the first through hole. Separation can be easily achieved by pressing the elastic protrusion downward. Furthermore, the elastic protrusion achieves elastic deformation through the gaps on both sides, and there is no need to add additional elastic components, thereby greatly simplifying the connection structure between the tube sections.

[0030] The above disclosure is only an embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A connecting pipe assembly, comprising at least a first pipe section and a second pipe section that are detachably connected; It is characterized in that The first pipe section includes a first pipe body and a first joint member fixed in the front end of the first pipe body, the first joint member is provided with a first through hole, and the first pipe body is provided with a second through hole corresponding to the first through hole and communicating with the first through hole; The second pipe section includes a second pipe body and a second joint piece fixed in the rear end of the second pipe body, the rear end of the second pipe body is a necking structure that can be inserted into the first joint piece, the necking portion is correspondingly provided with a third through hole that matches the first through hole, the second joint piece is correspondingly provided with an elastic protrusion placed in the third through hole, and the elastic protrusion is constructed as follows: When the connecting pipe assembly is assembled, the elastic protrusion can be inserted into the first through hole through the first pipe segment and the second pipe segment, thereby achieving a stable connection between the first pipe segment and the second pipe segment; When the connecting pipe assembly is disassembled, the elastic protrusion can be pressed to disengage from the first through hole, thereby realizing convenient separation of the first pipe section and the second pipe section.

2. A connecting pipe assembly according to claim 1, characterized in that: The first joint comprises a first joint portion extending outside the first tube body, a first notch groove is provided at the front end of the first tube body, and a first limiting portion cooperating with the first notch groove to limit rotation is correspondingly provided at the rear side of the first joint portion.

3. A connecting pipe assembly according to claim 2, characterized in that: The second joint member includes a second joint portion extending outside the second tube body, a second notch groove is provided at the end of the necked portion, and a second limiting portion is correspondingly provided on the front side of the second joint portion to cooperate with the second notch groove to limit rotation.

4. A connecting pipe assembly according to claim 3, characterized in that: The rear end portion of the second joint portion is provided with a stop groove; A stopper portion is protruded on the inner wall of the first joint member and matches with the stopper groove to limit rotation.

5. A connecting pipe assembly according to claim 1, characterized in that: The first joint piece is installed in the first tube body by interference fit, and a plurality of first convex strip structures for enhancing the fit effect are arranged on the outer wall of the first joint piece.

6. A connecting pipe assembly according to claim 1, characterized in that: The second engaging member is installed in the necking portion by interference fit, and a plurality of second convex strip structures for enhancing the fit effect are arranged on the outer wall of the second engaging member.

7. A connecting pipe assembly according to claim 1, characterized in that: Gaps are arranged on both sides of the second engaging member corresponding to the elastic protrusion.

8. The connecting pipe assembly according to claim 1, characterized in that: The top end surface of the elastic protrusion is constructed as a slope structure that tilts upward from the back to the front.

9. The connecting pipe assembly according to claim 1, characterized in that: The first engaging member is provided with a flange extending into the second through hole around the opening edge corresponding to the first through hole.

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