Elbow pipe fitting based on adjustable inner diameter

Abstract

The utility model discloses an elbow pipe fitting based on an adjustable inner diameter, which relates to the field of pipe fittings and comprises an elbow pipe body, one end of the elbow pipe body is in threaded fit with a connecting assembly, the connecting assembly comprises an inner pipe, one end of the outer side of the inner pipe is provided with an external thread, the external thread is matched with the inner side of one end of the elbow pipe body, and the other end of the elbow pipe body is provided with an internal thread. In the actual operation of the elbow pipe, the radius of the semi-ring of the inner pipe is smaller than that of the elbow pipe body, and the inner pipe has the arm thickness, so that when the inner pipe is in threaded fit with the interior of the elbow pipe body, the radius of the interior of the elbow pipe body can be reduced, and the area of a water flow channel can be reduced; if the area of the water flow channel needs to be increased, the inner pipe can be detached, use is easy and convenient, and the manufacturing cost is low.

Description

Technical Field

[0001] The utility model relates to the field of pipe fittings, in particular to an elbow pipe fitting with adjustable inner diameter. Background Art

[0002] Pipe fittings are a general term for parts in pipeline systems that play the role of connection, control, direction change, diversion, sealing, support, etc. Steel pipe fittings are all pressure-bearing pipe fittings. According to different processing techniques, they are divided into four categories, namely butt welding pipe fittings, socket welding and threaded pipe fittings, and flange pipe fittings. Elbows are a commonly used connecting pipe fittings in plumbing installations. They are used to connect pipe bends to change the direction of the pipe.

[0003] The internal radius of existing pipe fittings is fixed and can only accommodate a fixed water flow rate. If the water flows faster, the impact force generated can easily cause damage and loosening of the pipe.

[0004] Therefore, it is necessary to propose an elbow pipe fitting with adjustable inner diameter to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an elbow pipe fitting with an adjustable inner diameter to solve the problem that the internal radius of existing pipe fittings is fixed and can only accommodate a fixed water flow rate. If the water flows faster, the impact force generated may easily cause damage and loosening of the pipeline.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elbow pipe fitting based on an adjustable inner diameter, comprising an elbow body, one end of the elbow body being threadedly matched with a connecting assembly, the connecting assembly comprising an inner tube, one end of the outer side of the inner tube being provided with an external thread, the external thread being matched with the inner side of one end of the elbow body, a plurality of fixing blocks being fixed inside the inner tube, the plurality of fixing blocks being evenly distributed around the center of the inner tube, an embedded groove being provided on one side of the plurality of fixing blocks close to the center of the inner tube, and a rotating plate being rotatably connected to the inside of the plurality of embedded grooves.

[0007] Preferably, one end of the rotating plate is rotatably connected to the side of the embedded groove away from the bent pipe body, the bottom end of the rotating plate is provided with an inclined groove, a return spring is connected between the bottom end of the rotating plate and the embedded groove, and the side of the embedded groove close to the bent pipe body is connected to the outside world.

[0008] Preferably, a plurality of through holes are formed at the top end of the rotating plate, and the plurality of through holes penetrate the bottom end of the rotating plate.

[0009] Preferably, a protruding end is fixed to the other end of the outer side of the inner tube, and a plurality of anti-sliding blocks are fixedly connected to the outer side of the protruding end, and the plurality of anti-sliding blocks are evenly distributed around the outer side of the protruding end.

[0010] Preferably, an inner circle of the protruding end is provided with an internal thread, and the interior of the protruding end is connected to the interior of the inner tube.

[0011] Preferably, a plurality of fixing blocks are provided with a pointed end on a side away from the elbow body.

[0012] Preferably, the plurality of fixing blocks are distributed along the length of the inner tube.

[0013] Technical effects and advantages of the utility model:

[0014] 1. In the actual operation of the present invention, since the radius of the semi-ring of the inner tube is smaller than that of the elbow body and the inner tube has an arm thickness, when the inner tube thread is matched with the inside of the elbow body, the radius of the inside of the elbow body can be reduced, and the area of ​​the water flow channel can be reduced. If the area of ​​the water flow channel needs to be increased, the inner tube can be disassembled. It is simple and convenient to use, and the cost is low.

[0015] 2. In the actual operation of the utility model, when the water flow passing through the inner tube is large, the water flow impacts between the inclined groove and the embedded groove, and with the impact of the water flow, the rotating plate will rotate upward. At this time, the rotating plate stands up from the embedded groove. After standing up, there is more area on the rotating plate to contact the water flow, thereby blocking the water flow and slowing down the speed of the water flow.

[0016] 3. When the water flow is small, the water will be discharged through the through holes on the rotating plate, that is, the impact force of the water flow is not enough to make the rotating plate stand up, and it will not affect the slower water flow, and will automatically adapt according to the speed of the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the structure of an elbow pipe fitting with adjustable inner diameter.

[0018] Figure 2 It is a structural schematic diagram of the fixing block of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the rotating plate and the through hole of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the inclined trough of the utility model.

[0021] In the figure: 1. bend pipe body; 2. connection assembly; 3. protruding end; 4. inner tube; 5. external thread; 6. internal thread; 7. anti-sliding block; 8. fixing block; 9. tip; 10. embedded groove; 11. rotating plate; 12. through hole; 13. inclined groove; 14. reset spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1 - Figure 4 The elbow pipe fitting with adjustable inner diameter shown in the figure includes an elbow body 1, one end of which is threadedly matched with a connecting component 2, the connecting component 2 includes an inner tube 4, the elbow body 1 can be threadedly connected to the connecting component 2, and one end of the outer side of the inner tube 4 is provided with an external thread 5, which is matched with the inner side of one end of the elbow body 1.

[0024] In the actual operation of the present invention, since the semi-ring of the inner tube 4 is smaller than the radius of the curved tube body 1 and the inner tube 4 has an arm thickness, when the inner tube 4 is threadedly fitted into the interior of the curved tube body 1, the radius of the interior of the curved tube body 1 can be reduced, and the area of ​​the water flow channel can be reduced. If the area of ​​the water flow channel needs to be increased, the inner tube 4 can be removed. It is simple and convenient to use and has a low manufacturing cost.

[0025] A protruding end 3 is fixed to the other end of the outer side of the inner tube 4, and a plurality of anti-sliding blocks 7 are fixedly connected to the outer side of the protruding end 3. The plurality of anti-sliding blocks 7 are evenly distributed around the outer side of the protruding end 3. An inner circle of the protruding end 3 is provided with an internal thread 6. The interior of the protruding end 3 is connected to the interior of the inner tube 4. Other pipes can be threadedly connected through the inner circle of the protruding end 3. Personnel can rotate the protruding end 3 to make the inner tube 4 fit into the interior of the bent pipe body 1. The plurality of anti-sliding blocks 7 can play an anti-slip effect to prevent personnel from manually rotating and causing slipping.

[0026] A plurality of fixing blocks 8 are fixed inside the inner tube 4, and the plurality of fixing blocks 8 are evenly distributed around the center of the inner tube 4. An embedded groove 10 is formed on one side of the plurality of fixing blocks 8 close to the center of the inner tube 4, and a rotating plate 11 is rotatably connected inside the plurality of embedded grooves 10.

[0027] One end of the rotating plate 11 is rotatably connected to the side of the embedded groove 10 away from the bending pipe body 1, and an inclined groove 13 is provided at the bottom end of the rotating plate 11. A return spring 14 is connected between the bottom end of the rotating plate 11 and the embedded groove 10. The side of the embedded groove 10 close to the bending pipe body 1 is connected to the outside world. A plurality of through holes 12 are provided at the top end of the rotating plate 11, and the plurality of through holes 12 pass through the bottom end of the rotating plate 11.

[0028] A tip 9 is provided on one side of the plurality of fixing blocks 8 away from the elbow body 1 , and the plurality of fixing blocks 8 are distributed along the length of the inner tube 4 .

[0029] In the actual operation of the utility model, when the water flow passing through the inner tube 4 is large, the water flow impacts between the inclined groove 13 and the embedded groove 10, and with the impact of the water flow, the rotating plate 11 will rotate upward. At this time, the rotating plate 11 stands up from the embedded groove 10. After standing up, more area on the rotating plate 11 contacts the water flow, thereby blocking the water flow and slowing down the speed of the water flow.

[0030] When the water flow is small, the water flow will be discharged through the through hole 12 on the rotating plate 11, that is, the impact force of the water flow is not enough to make the rotating plate 11 stand up, and will not affect the slower water flow, and will automatically adapt to the speed of the water flow.

Claims

1. An elbow pipe fitting with adjustable inner diameter, comprising an elbow body (1), characterized in that: One end of the curved pipe body (1) is threadedly matched with a connecting assembly (2), and the connecting assembly (2) comprises an inner pipe (4), one end of the outer side of the inner pipe (4) is provided with an external thread (5), and the external thread (5) is matched with the inner side of one end of the curved pipe body (1), and a plurality of fixing blocks (8) are fixed inside the inner pipe (4), and the plurality of fixing blocks (8) are evenly distributed around the center of the inner pipe (4), and an inner groove (10) is provided on one side of the plurality of fixing blocks (8) close to the center of the inner pipe (4), and a rotating plate (11) is rotatably connected inside the plurality of inner grooves (10).

2. The elbow pipe fitting with adjustable inner diameter according to claim 1, characterized in that: One end of the rotating plate (11) is rotatably connected to a side of the embedded groove (10) away from the bent pipe body (1), an inclined groove (13) is provided at the bottom end of the rotating plate (11), a return spring (14) is connected between the bottom end of the rotating plate (11) and the embedded groove (10), and a side of the embedded groove (10) close to the bent pipe body (1) is connected to the outside.

3. The elbow pipe fitting with adjustable inner diameter according to claim 1, characterized in that: The top end of the rotating plate (11) is provided with a plurality of through holes (12), and the plurality of through holes (12) penetrate the bottom end of the rotating plate (11).

4. The elbow pipe fitting with adjustable inner diameter according to claim 1, characterized in that: A protruding end (3) is fixed to the other end of the outer side of the inner tube (4), and a plurality of anti-sliding blocks (7) are fixedly connected to the outer side of the protruding end (3), and the plurality of anti-sliding blocks (7) are evenly distributed around the outer side of the protruding end (3).

5. The elbow pipe fitting with adjustable inner diameter according to claim 4, characterized in that: The inner circle of the protruding end (3) is provided with an internal thread (6), and the interior of the protruding end (3) is connected to the interior of the inner tube (4).

6. The elbow pipe fitting with adjustable inner diameter according to claim 1, characterized in that: A plurality of fixing blocks (8) are provided with a tip (9) on a side away from the curved pipe body (1).

7. The elbow pipe fitting with adjustable inner diameter according to claim 1, characterized in that: The plurality of fixing blocks (8) are distributed along the length of the inner tube (4).

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