Necking flat pipe capable of preventing gaps on two sides from cracking

Abstract

The utility model discloses a necking flat pipe capable of preventing notches on two sides from cracking, relates to the technical field of pipe fittings, and provides the following scheme aiming at the problems proposed in the background technology: a flat pipe body is provided, the front end and the rear end of the flat pipe body are fixedly connected with anti-cracking components, and each anti-cracking component comprises a first external expansion flat pipe and a second external expansion flat pipe; the front face of the first external expansion flat pipe is fixedly connected with a first sealing cover, the inner wall of the first external expansion flat pipe is fixedly connected with a first connecting pipe, and the inner wall of the first external expansion flat pipe is fixedly connected with a first annular filling block. The flat pipe body can be wrapped in the first external expansion flat pipe, the second external expansion flat pipe and the reinforcing belts, so that pressure borne by the two ends of the flat pipe body is transferred into the first external expansion flat pipe and the second external expansion flat pipe; the overall pressure of the first external expansion flat pipe and the second external expansion flat pipe can be improved through the connecting insertion block and the filling block which are large in thickness, and therefore the protection effect on the notches in the two ends of the flat pipe body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fittings, in particular to a shrinking flat pipe which can prevent cracking at notches on both sides. Background Art

[0002] As the name suggests, a flat tube refers to a pipe that is flatter at the mouth than a round tube. In building decoration, some bathroom or kitchen pipes often use flat tube tees for drainage. Therefore, when connecting the flat tube tees, you need to use a shrinking flat tube.

[0003] Most of the existing shrink-jointed flat tubes are made of PVC. Due to their fragile structure, once the notches at both ends of the flat tubes are squeezed with great force, the notches at both ends of the flat tubes will be deformed or even cracked, which directly affects the connection between the flat tube and other flat tubes or flat tube tees. Improper handling may cause water leakage, so there is room for improvement. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a shrinking flat tube which can prevent cracking of notches on both sides.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shrinking flat tube for preventing cracking at both sides of the notch comprises a flat tube body, and both front and rear ends of the flat tube body are fixedly connected with anti-cracking components, characterized in that the anti-cracking component comprises a first outwardly expanded flat tube and a second outwardly expanded flat tube, a first sealing cover is fixedly connected to the front of the first outwardly expanded flat tube, a first connecting tube is fixedly connected to the inner wall of the first outwardly expanded flat tube, a movable groove is provided on the surface of the first sealing cover, a second sealing cover is fixedly connected to the back of the second outwardly expanded flat tube, and a second connecting tube is fixedly connected to the inner wall of the second outwardly expanded flat tube, and a filling block is fixedly connected to the inner wall of the second outwardly expanded flat tube;

[0007] A connecting component is provided on the inner wall of the movable groove, and a connecting block is slidably connected to the inner wall of the connecting component. A round hole is opened on the front of the connecting block, and an internal thread is provided on the inner wall of the round hole. A screw rod is connected to one side of the connecting component, and a toggle plate is fixedly connected to the front end of the screw rod. A reinforcing belt is fixedly connected to one side of the second outwardly expanded flat tube, and the other end of the reinforcing belt is fixedly connected to the back side of the connecting block.

[0008] Preferably, the front sides of the first sealing cover and the second sealing cover are respectively provided with through holes adapted to the first connecting tube and the second connecting tube, and the first outwardly expanded flat tube and the second outwardly expanded flat tube will not affect the flow function of the flat tube body.

[0009] Preferably, the front and rear ends of the flat tube body are fixedly connected to the inner walls of the first connecting tube and the second connecting tube respectively, and the two ends of the flat tube body extend to the inner walls of the first connecting tube and the second connecting tube respectively.

[0010] Preferably, the screw rod is rotatably connected to the connecting component, and the internal thread is threadedly connected to the screw rod. The screw rod can drive the connecting plug to move back and forth on the inner wall of the connecting component through the internal thread.

[0011] Preferably, a groove adapted to the connecting plug is correspondingly arranged inside the first outward-expanded flat tube, and the reinforcing belt can be tightened or loosened through the strip-shaped through hole.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By providing the first outward-expanded flat tube and the second outward-expanded flat tube, the two ends of the flat tube body can be wrapped inside, so that the pressure received at the two ends of the flat tube body is transferred into the first outward-expanded flat tube and the second outward-expanded flat tube. The overall pressure resistance of the first outward-expanded flat tube and the second outward-expanded flat tube can be improved through the relatively thick first annular filling block and the filling block, thereby improving the protection effect on the notches at the two ends of the flat tube body;

[0014] 2. By providing the screw rod, the internal thread and the connecting plug, the reinforcing belt can be driven to move, so that the reinforcing belt can be installed on the surface of the flat tube body, playing a certain anti-deformation effect, avoiding deformation and cracking on both sides of the flat tube body, and having a good protection effect on the flat tube body. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of a necked flat tube for preventing cracking of notches on both sides proposed by the present utility model;

[0016] Figure 2 is a three-dimensional split structural schematic diagram of the first outward-expanded flat tube of a necked flat tube for preventing cracking of notches on both sides proposed by the present utility model;

[0017] Figure 3 is a three-dimensional split structural schematic diagram of the second outward-expanded flat tube of a necked flat tube for preventing cracking of notches on both sides proposed by the present utility model;

[0018] Figure 4 is a three-dimensional split structural schematic diagram of the connecting component of a necked flat tube for preventing cracking of notches on both sides proposed by the present utility model.

[0019] In the figure: 1. Flat tube body;

[0020] 2. First outward-expanded flat tube; 201. First sealing cover; 202. First connecting tube;

[0021] 3. Second outward-expanded flat tube; 301. Second sealing cover; 302. Second connecting tube; 303. Filling block;

[0022] 4. Connecting component; 401. Connecting insert block; 402. Internal thread; 403. Lead screw; 404. Dialing plate; 405. Reinforcing belt. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Embodiment 1, referring to Figure 1 、 Figure 2 and Figure 3 , a necked-down flat tube for preventing cracking at both sides of the notch, including a flat tube body 1. Anti-cracking components are fixedly connected to both the front and rear ends of the flat tube body 1. The anti-cracking components include a first outward-expanded flat tube 2 and a second outward-expanded flat tube 3. A first sealing cover 201 is fixedly connected to the front surface of the first outward-expanded flat tube 2. A first connecting tube 202 is fixedly connected to the inner wall of the first outward-expanded flat tube 2. An activity groove is formed in the front surface of the first sealing cover 201;

[0025] A second sealing cover 301 is fixedly connected to the back surface of the second outward-expanded flat tube 3. And a second connecting tube 302 is fixedly connected to the inner wall of the second outward-expanded flat tube 3. Through holes adapted to the first connecting tube 202 and the second connecting tube 302 are respectively formed in the front surfaces of the first sealing cover 201 and the second sealing cover 301. The front and rear ends of the flat tube body 1 are respectively fixedly connected to the inner walls of the first connecting tube 202 and the second connecting tube 302. A filling block 303 is arranged on the inner wall of the second outward-expanded flat tube 3. A connecting insert block 401 is arranged inside the first connecting tube 202;

[0026] The connecting insert block 401 and the filling block 303 inside the first outward-expanded flat tube 2 and the second outward-expanded flat tube 3 can improve the overall external pressure resistance, thereby ensuring the anti-cracking ability at both ends of the flat tube body 1.

[0027] Embodiment 2: Referring to Figure 1 、 Figure 2 and Figure 4 , a connecting component 4 is arranged on the inner wall of the activity groove. A connecting insert block 401 is slidably connected to the inner wall of the connecting component 4. A round hole is formed in the front surface of the connecting insert block 401. An internal thread 402 is arranged on the inner wall of the round hole. One side of the connecting component 4 is connected with a lead screw 403. The rear end of the lead screw 403 is rotatably connected to the inner rear wall of the connecting component 4. And the internal thread 402 is in threaded connection with the lead screw 403. A dialing plate 404 is fixedly connected to the front end of the lead screw 403;

[0028] The toggle plate 404 can drive the screw rod 403 to rotate, and the screw rod 403 can drive the connecting plug 401 to move forward and backward in the first outwardly expanded flat tube 2 through the transmission effect of the internal thread 402;

[0029] A reinforcing belt 405 is fixedly connected to one side of the second outwardly expanded flat tube 3, and the other end of the reinforcing belt 405 is fixedly connected to the back of the connecting plug 401. A groove matching the connecting plug 401 is correspondingly arranged inside the first outwardly expanded flat tube 2.

[0030] When the connecting plug 401 moves forward, it can pull the reinforcing belt 405 forward, so that the reinforcing belt 405 can be installed on the surface of the flat tube body 1, playing a certain anti-deformation role.

[0031] Working principle: the two ends of the flat tube body 1 are fixedly installed by the first outwardly expanded flat tube 2 and the second outwardly expanded flat tube 3. Since the two ends of the flat tube body 1 extend into the first connecting tube 202 and the second connecting tube 302, the notches at the two ends of the flat tube body 1 will not be subjected to direct pressure, but fall on the first outwardly expanded flat tube 2 and the second outwardly expanded flat tube 3. Since the connecting plugs 401 and the filling blocks 303 inside the first outwardly expanded flat tube 2 and the second outwardly expanded flat tube 3 can increase the overall pressure on the outside, the anti-cracking ability of the two ends of the flat tube body 1 can be ensured. At the same time, rotating the screw rod 403 can drive the connecting plug 401 to move forward, and the connecting plug 401 pulls the reinforcing belt 405 forward and tightens it, so that the reinforcing belt 405 is installed on the surface of the flat tube body 1. When the flat tube body 1 is squeezed up and down, the reinforcing belt 405 and the first outwardly expanded flat tube 2 and the second outwardly expanded flat tube 3 can prevent the flat tube body 1 from deforming, thereby having a certain anti-extrusion effect and a good protection effect on the flat tube body 1.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A necked-down flat tube that prevents cracking at both sides of the notch, comprising a flat tube body (1), and anti-cracking components are fixedly connected to both the front and rear ends of the flat tube body (1), and it is characterized in that, The anti-cracking component comprises a first outwardly expanded flat tube (2) and a second outwardly expanded flat tube (3); the front surface of the first outwardly expanded flat tube (2) is fixedly connected to a first sealing cover (201); the inner wall of the first outwardly expanded flat tube (2) is fixedly connected to a first connecting tube (202); a movable groove is provided on the surface of the first sealing cover (201); the back surface of the second outwardly expanded flat tube (3) is fixedly connected to a second sealing cover (301); the inner wall of the second outwardly expanded flat tube (3) is fixedly connected to a second connecting tube (302); and the inner wall of the second outwardly expanded flat tube (3) is fixedly connected to a filling block (303); The inner wall of the movable groove is provided with a connecting component (4), the inner wall of the connecting component (4) is slidably connected to a connecting plug (401), a round hole is opened on the front side of the connecting plug (401), and an internal thread (402) is provided on the inner wall of the round hole; a screw rod (403) is connected to one side of the connecting component (4), and a toggle plate (404) is fixedly connected to the front end of the screw rod (403); a reinforcing belt (405) is fixedly connected to one side of the second outwardly expanded flat tube (3), and the other end of the reinforcing belt (405) is fixedly connected to the back side of the connecting plug (401).

2. The necked-down flat tube for preventing the cracking of both-side notches according to claim 1, characterized in that, Through holes matching the first connecting tube (202) and the second connecting tube (302) are respectively provided on the front sides of the first sealing cover (201) and the second sealing cover (301).

3. A necked-down flat tube for preventing cracking at both sides of the notch according to claim 1, characterized in that, The front and rear ends of the flat tube body (1) are fixedly connected to the inner walls of the first connecting tube (202) and the second connecting tube (302), respectively.

4. A necked-down flat tube for preventing cracking at both sides of the notch according to claim 1, characterized in that The screw rod (403) is rotatably connected to the connecting assembly (4), and the internal thread (402) is threadably connected to the screw rod (403).

5. A necked-down flat tube for preventing cracking at both sides of the notch, characterized in that A groove matching the connecting plug block (401) is correspondingly arranged inside the first outwardly expanded flat tube (2).

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