An elbow pipe fitting not easy to deform

Abstract

The invention relates to the technical field of elbow pipe fittings, and discloses an elbow pipe fitting that is not easily deformed, which solves the problem that the existing elbow pipe fittings use threaded interfaces that are inconvenient to connect and install, and the threaded interfaces are prone to wear and thread slippage during the spinning process. The elbow pipe fitting comprises an elbow pipe fitting main body, both ends of the elbow pipe fitting main body are fixedly installed with reinforced connecting blocks, the surfaces of the two reinforced connecting blocks are installed with adjusting pipes, and the insides of the two reinforced connecting blocks are installed with connecting pipes; the elbow pipe fitting that is not easily deformed is provided with an effective connecting mechanism, so that the elbow pipe fitting and the pipeline can be connected and installed conveniently and effectively, and the connecting mechanism has a small structure and can be conveniently installed and disassembled, thereby avoiding the problem of wear and thread slippage of the threaded interface during the spinning process, and effectively improving the performance of the elbow pipe fitting.

Description

Technical Field

[0001] The invention belongs to the technical field of elbow pipe fittings, and in particular relates to an elbow pipe fitting that is not easily deformed. Background Art

[0002] Elbow refers to the pipe fitting that changes the direction of the pipeline in the piping system. According to the angle, the three most commonly used elbows are 45°, 90° and 180°. In addition, according to the needs of the project, other abnormal angles such as 60° are also included. According to the production process, it can be divided into welded elbows, stamped elbows, pushed elbows, cast elbows, etc.; the materials of elbows include cast iron, stainless steel, alloy steel, forgeable cast iron, carbon steel, non-ferrous metals and plastics, etc.; and in the process of laying pipelines, due to pipeline design or construction needs, elbow fittings are often required to change the laying direction of the pipeline.

[0003] Existing elbow pipe fittings are mostly connected and installed using threaded interfaces. Due to the long length of the connecting pipe, it is very inconvenient to screw it. At the same time, the threaded interface is prone to wear and thread slippage during the screwing process, which causes damage to the elbow pipe fittings and the connection sealing does not meet the use requirements, so the entire set of devices needs to be replaced, which increases the cost. Therefore, in view of the current situation, it is now necessary to improve it. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an elbow pipe fitting that is not easy to deform, which effectively solves the problem that the existing elbow pipe fittings in the above background technology use threaded interfaces that are inconvenient for connection and installation operations, and the threaded interfaces are prone to wear and slippage during the screwing process.

[0005] To achieve the above object, the present invention provides the following technical solution: an elbow pipe fitting that is not easily deformed, comprising an elbow pipe fitting body, both ends of the elbow pipe fitting body are fixedly installed with reinforced connection blocks, the surfaces of the two reinforced connection blocks are installed with adjustment pipes, and the interiors of the two reinforced connection blocks are installed with connecting pipes;

[0006] A front end groove, a middle groove and a rear end groove are formed in the middle of the reinforced connection block, the middle groove is located between the front end groove and the rear end groove, a first conical groove ring and a second conical groove ring are formed at the bottom of the middle groove and the rear end groove, respectively, and a connection pipe is installed between the insides of the front end groove, the middle groove and the rear end groove;

[0007] A rotating ring is fixedly installed on one side of the surface of the adjusting tube, a first internal thread connection port is opened on the other side of the inside of the adjusting tube, an external thread connection port is opened in the middle of the surface of the reinforcing connection block, and the adjusting tube is threadedly connected to the surface of the reinforcing connection block through the first internal thread connection port and the external thread connection port.

[0008] Preferably, four through holes are equidistantly provided in a circular shape at one end of the middle ring groove, a buffer cavity is provided in the middle of the four through holes, and latches are movably inserted in the four through holes, an extrusion sheet is fixedly installed in the middle of the latch and in the buffer cavity, a first spring is installed in the buffer cavity, the first spring is sleeved on the surface of the latch, and one end of the first spring is in conflict with one side of the extrusion sheet.

[0009] Preferably, four arc-shaped oblique grooves are formed in an annular manner at equal distances on one side of the interior of the regulating tube, and one end of the latch is movably inserted into the interior of the arc-shaped oblique groove.

[0010] Preferably, a first conical convex ring and a second conical convex ring are fixedly installed on one side of the surface of the connecting pipe, and the first conical convex ring and the second conical convex ring are movably inserted into the inside of the first conical groove ring and the second conical groove ring respectively, and sealing clamping gaskets are installed inside the first conical groove ring and the second conical groove ring.

[0011] Preferably, a fixing ring is fixedly installed at one end of the connecting pipe, and a second internal thread connecting port is opened inside the connecting pipe.

[0012] Preferably, four receiving cavities are equidistantly provided in a ring shape on the other side of the surface of the connecting tube, and a T-shaped push pin is movably inserted into the interior of the four receiving cavities, one end of the T-shaped push pin extends to the interior of the through hole, and a second spring is installed between the interior of the receiving cavity and one side of the T-shaped push pin.

[0013] Preferably, a third spring is installed in an annular shape at equal distances at one end of the adjusting tube, a resistance slider is fixedly installed at one end of the third spring, a protective hose is connected between the resistance slider and the adjusting tube, and the protective hose is sleeved on the surface of the third spring, and one end of the resistance slider is in sliding contact with the fixed ring.

[0014] Preferably, four oblique grooves are formed in an annular manner at equal distances inside the front end ring groove, and a conical socket is formed at one end of the rear end ring groove away from the middle ring groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) During operation, the elbow pipe fitting, which is not easily deformed, is provided with an effective connection mechanism by providing a reinforced connection block, an adjustment pipe and a connection pipe, so that the elbow pipe fitting and the pipeline can be conveniently and effectively connected and installed. At the same time, the connection mechanism has a small structure and can be conveniently installed and disassembled, thereby avoiding the problem of wear and thread slippage of the threaded interface during the screw connection process, and effectively improving the performance of the elbow pipe fitting; and the connection mechanism is reasonably designed, simple and convenient to use, and can meet the connection and use requirements of the pipeline;

[0017] (2) During operation, the pipe and the elbow pipe body can be effectively connected and fixed by providing the front end groove, the middle groove, the rear end groove, the through hole, the second internal thread connection port, the storage chamber, the T-shaped push pin and the second spring; first, the pipe and the connecting pipe are threadedly connected through the second internal thread connection port. Since the connecting pipe has a small structure, it can be easily and conveniently rotated. Then, the connecting pipe is inserted into the front end groove, the middle groove and the rear end groove. During the insertion process, the T-shaped push pin is squeezed to compress the second spring. Finally, one end of the T-shaped push pin is inserted into the through hole by the elastic force of the second spring, so that the pipe is effectively connected to the elbow pipe body and the reinforcing connection block through the connecting pipe;

[0018] (3) During operation, by providing the first conical groove ring, the second conical groove ring, the first conical convex ring and the second conical convex ring, the connection between the connecting pipe and the reinforced connecting block is more firmly connected and the sealing performance is better; after the connecting pipe is inserted into the front end ring groove, the middle ring groove and the rear end ring groove, the first conical convex ring and the second conical convex ring will be inserted into the first conical groove ring and the second conical groove ring respectively and contact with the sealing clamping gasket to clamp and seal;

[0019] (4) During operation, the third spring, the resisting slider, the protective hose, the buffer chamber, the latch, the extrusion sheet, the first spring, the arc-shaped inclined groove, the rotating ring and the fixed ring are provided, so that the connecting pipe can be effectively and conveniently disassembled. When separation and disassembly are required, the adjusting pipe is first rotated and adjusted by the rotating ring, so that the adjusting pipe is rotated and moved toward the fixed ring on the surface of the reinforcing connecting block through the first internal thread connection port and the external thread connection port. During the rotation process, the adjusting pipe squeezes the latch through the four arc-shaped inclined grooves. After being squeezed, the latch compresses the first spring through the extrusion sheet. At the same time, the latch pushes the T-shaped push pin, so that the T-shaped push pin compresses the second spring and moves to the inside of the storage chamber. When the T-shaped push pin moves to the inside of the storage chamber, the elastic force of the third spring drives the resisting slider to push the fixed ring, so that the fixed ring drives the connecting pipe to withdraw from the inside of the front end ring groove, the middle ring groove and the rear end ring groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached picture:

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1A schematic diagram of a partial cross-sectional structure;

[0024] Figure 3 This is a schematic cross-sectional structural diagram of a reinforced connecting block of the present invention;

[0025] Figure 4 It is a schematic cross-sectional structural diagram of the connecting pipe of the present invention;

[0026] Figure 5 It is a schematic cross-sectional structure diagram of the regulating tube of the present invention;

[0027] Figure 6 It is a schematic diagram of the top cross-sectional structure of the regulating tube of the present invention;

[0028] In the figure: 1. elbow pipe fitting body; 2. reinforced connecting block; 3. adjusting pipe; 301. third spring; 302. abutting slider; 303. protective hose; 4. connecting pipe; 5. front end groove; 6. middle groove; 7. rear end groove; 8. first conical groove ring; 9. second conical groove ring; 10. through hole; 11. buffer cavity; 12. latch; 13. extrusion sheet; 14. first spring; 15. arc-shaped inclined groove; 16. rotating ring; 17. first conical convex ring; 18. second conical convex ring; 19. fixing ring; 20. second internal thread connection port; 21. receiving cavity; 22. T-shaped push pin; 23. second spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Embodiment 1, by Figures 1 to 6 The present invention comprises an elbow pipe fitting body 1, both ends of which are fixedly mounted with reinforced connection blocks 2. By setting the reinforced connection blocks 2, the firmness and stability of the connection can be effectively enhanced. Adjustment pipes 3 are installed on the surfaces of the two reinforced connection blocks 2, and connecting pipes 4 are installed inside the two reinforced connection blocks 2. By setting the connecting pipes 4, the elbow pipe fitting body 1 can be conveniently and effectively connected and disassembled with the pipeline;

[0031] A front end groove 5, a middle groove 6 and a rear end groove 7 are provided in the middle of the reinforcing connecting block 2. The middle groove 6 is located between the front end groove 5 and the rear end groove 7. The bottoms of the middle groove 6 and the rear end groove 7 are provided with a first conical groove ring 8 and a second conical groove ring 9 respectively. The connecting pipe 4 is installed between the insides of the front end groove 5, the middle groove 6 and the rear end groove 7, so that the connecting pipe 4 can be effectively connected.

[0032] A rotating ring 16 is fixedly installed on one side of the surface of the adjusting tube 3, a first internal threaded connection port is opened on the other side of the inside of the adjusting tube 3, and an external threaded connection port is opened in the middle of the surface of the reinforcing connection block 2. The adjusting tube 3 is threadedly connected to the surface of the reinforcing connection block 2 through the first internal threaded connection port and the external threaded connection port, so that the adjusting tube 3 can be effectively rotationally adjusted.

[0033] Embodiment 2, based on embodiment 2, Figure 3 It is shown that four through holes 10 are equidistantly provided in a ring shape at one end of the middle ring groove 6, a buffer cavity 11 is provided in the middle of the four through holes 10, and a latch 12 is movably inserted into the four through holes 10, an extrusion sheet 13 is fixedly installed in the middle of the latch 12 and inside the buffer cavity 11, a first spring 14 is installed inside the buffer cavity 11, the first spring 14 is sleeved on the surface of the latch 12, and one end of the first spring 14 is in contact with one side of the extrusion sheet 13, so that effective adjustment can be performed.

[0034] Embodiment 3, based on embodiment 1, Figure 3 , Figure 5 and Figure 6 It is shown that four arc-shaped inclined grooves 15 are equidistantly provided in an annular shape on one side of the inside of the adjusting tube 3 , and one end of the latch 12 is movably inserted in the arc-shaped inclined groove 15 , so that the latch 12 can be effectively squeezed and adjusted.

[0035] Embodiment 4, based on embodiment 1, Figure 4 It is shown that a first conical convex ring 17 and a second conical convex ring 18 are fixedly installed on one side of the surface of the connecting pipe 4, and the first conical convex ring 17 and the second conical convex ring 18 are movably inserted in the inside of the first conical groove ring 8 and the second conical groove ring 9 respectively, and sealing clamping gaskets are installed in the inside of the first conical groove ring 8 and the second conical groove ring 9, so that the connection between the adjusting pipe 3 and the reinforced connecting block 2 has effective sealing.

[0036] Embodiment 5, based on embodiment 1, Figure 4 It is shown that a fixing ring 19 is fixedly installed at one end of the connecting pipe 4 , and a second internal threaded connecting port 20 is opened inside the connecting pipe 4 , so that the pipeline can be effectively threadedly connected to the connecting pipe 4 .

[0037] Embodiment 6, based on embodiment 1, Figure 4 It is shown that four receiving cavities 21 are provided in an annular manner with equal distances on the other side of the surface of the connecting tube 4, and T-shaped push pins 22 are movably inserted into the interior of the four receiving cavities 21, one end of the T-shaped push pin 22 extends to the interior of the through hole 10, and a second spring 23 is installed between the interior of the receiving cavity 21 and one side of the T-shaped push pin 22, so that the connecting tube 4 can be stably and effectively installed inside the reinforced connecting block 2.

[0038] Embodiment 7, based on embodiment 1, Figure 5 It is shown that a third spring 301 is installed in a ring at an equal distance at one end of the adjusting tube 3, and a resistance slider 302 is fixedly installed at one end of the third spring 301. A protective hose 303 is connected between the resistance slider 302 and the adjusting tube 3, and the protective hose 303 is sleeved on the surface of the third spring 301. One end of the resistance slider 302 is in sliding contact with the fixing ring 19, so that the fixing ring 19 can be resisted to facilitate the disassembly of the connecting tube 4.

[0039] Embodiment 8, based on embodiment 1, Figure 3 It is shown that four oblique grooves are equidistantly arranged in an inner ring of the front end groove 5. The arrangement of the oblique grooves facilitates the extrusion operation of the T-shaped push pin 22. A conical socket is arranged at one end of the rear end groove 7 away from the middle groove 6. The arrangement of the conical socket enables the pipeline to be tightly connected to the elbow pipe fitting body 1.

[0040] Working principle: First, the pipeline is threadedly connected to the connecting pipe 4 through the second internal thread connection port 20. Since the structure of the connecting pipe 4 is small, it can be easily and conveniently rotated. Then, the connecting pipe 4 is inserted into the front end ring groove 5, the middle ring groove 6 and the rear end ring groove 7. During the insertion process, the T-shaped push pin 22 will be squeezed to compress the second spring 23. Finally, one end of the T-shaped push pin 22 will be inserted into the through hole 10 through the elastic force of the second spring 23, so that the pipeline is effectively connected to the elbow pipe fitting body 1 and the reinforced connecting block 2 through the connecting pipe 4; after the connecting pipe 4 is inserted into the front end ring groove 5, the middle ring groove 6 and the rear end ring groove 7, the first conical convex ring 17 and the second conical convex ring 18 will be respectively inserted into the first conical groove ring 8 and the second conical groove ring 9 and conflict with the sealing clamping gasket to clamp and seal; when separation and disassembly are required, first The adjusting tube 3 is rotated and adjusted by the rotating ring 16, so that the adjusting tube 3 is rotated and moved toward the fixing ring 19 on the surface of the reinforcing connecting block 2 through the first internal thread connection port and the external thread connection port. During the rotation process, the adjusting tube 3 squeezes the latch 12 through the four arc-shaped inclined grooves 15. After being squeezed, the latch 12 compresses the first spring 14 through the extrusion sheet 13. At the same time, the latch 12 pushes the T-shaped push pin 22, so that the T-shaped push pin 22 compresses the second spring 23 and moves to the inside of the storage chamber 21. When the T-shaped push pin 22 moves to the inside of the storage chamber 21, the elastic force of the third spring 301 drives the resistance slider 302 to push the fixing ring 19, so that the fixing ring 19 drives the connecting tube 4 to withdraw from the front end ring groove 5, the middle ring groove 6 and the rear end ring groove 7. Finally, the connecting tube 4 is rotated to separate the second internal thread connection port 20 from the pipeline.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elbow pipe fitting that is not easily deformed, comprising an elbow pipe fitting body (1), characterized in that: Both ends of the elbow pipe body (1) are fixedly mounted with reinforced connection blocks (2), the surfaces of the two reinforced connection blocks (2) are mounted with adjustment pipes (3), and the interiors of the two reinforced connection blocks (2) are mounted with connection pipes (4); A front end groove (5), a middle groove (6) and a rear end groove (7) are provided in the middle of the reinforced connection block (2); the middle groove (6) is located between the front end groove (5) and the rear end groove (7); a first conical groove ring (8) and a second conical groove ring (9) are provided at the bottom of the middle groove (6) and the rear end groove (7); and the connection pipe (4) is installed between the inside of the front end groove (5), the middle groove (6) and the rear end groove (7); A rotating ring (16) is fixedly mounted on one side of the surface of the adjusting tube (3), a first internal thread connection port is provided on the other side of the inside of the adjusting tube (3), an external thread connection port is provided in the middle of the surface of the reinforcing connection block (2), and the adjusting tube (3) is threadedly connected to the surface of the reinforcing connection block (2) via the first internal thread connection port and the external thread connection port; Four through holes (10) are formed in an equidistant manner in an annular manner at one end of the middle ring groove (6), a buffer cavity (11) is formed in the middle of each of the four through holes (10), and a plug pin (12) is movably inserted in the four through holes (10), an extrusion sheet (13) is fixedly installed in the middle of the plug pin (12) and in the buffer cavity (11), a first spring (14) is installed in the buffer cavity (11), the first spring (14) is sleeved on the surface of the plug pin (12), and one end of the first spring (14) is in contact with one side of the extrusion sheet (13); Four arc-shaped oblique grooves (15) are formed in an annular manner and at equal intervals on one side of the inside of the regulating tube (3), and one end of the latch (12) is movably inserted into the inside of the arc-shaped oblique groove (15); A fixing ring (19) is fixedly mounted on one end of the connecting pipe (4), and a second internally threaded connecting port (20) is provided inside the connecting pipe (4); Four receiving cavities (21) are formed in an annular manner and at equal intervals on the other side of the surface of the connecting pipe (4); a T-shaped push pin (22) is movably inserted into the interior of each of the four receiving cavities (21); one end of the T-shaped push pin (22) extends into the interior of the through hole (10); and a second spring (23) is installed between the interior of the receiving cavity (21) and one side of the T-shaped push pin (22); A third spring (301) is equidistantly mounted in an annular manner on one end of the regulating tube (3); a resisting slider (302) is fixedly mounted on one end of the third spring (301); a protective hose (303) is connected between the resisting slider (302) and the regulating tube (3); the protective hose (303) is sleeved on the surface of the third spring (301); and one end of the resisting slider (302) is in sliding contact with the fixing ring (19).

2. The non-deformable elbow pipe fitting according to claim 1, characterized in that: A first conical convex ring (17) and a second conical convex ring (18) are fixedly mounted on one side of the surface of the connecting pipe (4); the first conical convex ring (17) and the second conical convex ring (18) are movably inserted into the interior of the first conical groove ring (8) and the second conical groove ring (9), respectively; and sealing clamping gaskets are installed inside the first conical groove ring (8) and the second conical groove ring (9).

3. The non-deformable elbow pipe fitting according to claim 1, characterized in that: The inner side of the front end ring groove (5) is provided with four oblique grooves at equal distances, and the end of the rear end ring groove (7) away from the middle ring groove (6) is provided with a conical socket.

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