Pipeline elbow connecting mechanism

Abstract

The utility model provides a pipeline elbow connecting mechanism, which belongs to the technical field of pipeline elbow connection and comprises a support, connecting arms are symmetrically and rotatably arranged in an inner cavity of the support, pipeline clamping seats are arranged at free ends of the connecting arms, and the pipeline clamping seats are connected to the ends of the connecting arms through universal adjusting assemblies. A pipeline clamping groove is formed in the side wall of the pipeline clamping seat, a positioning locking assembly opposite to the pipeline clamping groove is arranged on the pipeline clamping seat, an insertion hole opposite to the locking insertion piece is formed in the side wall of the pipeline clamping seat, a proper elbow is selected to be in butt joint with the pipelines on the two sides according to the positions of the two connecting arms, and the accuracy of pipeline elbow connection is guaranteed; in the process of clamping the pipelines on the two sides of the elbow, the position of the pipeline clamping base is adjusted according to the universal adjusting assembly, it is guaranteed that the pipeline clamping groove of the pipeline clamping base is located at the position attached to the outer wall of the pipeline, and therefore the accuracy of elbow connection is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a pipe elbow connection mechanism. Background Technology

[0002] In a piping system, an elbow is a pipe fitting that changes the direction of the pipeline. Elbows allow the pipes on both sides to bend and connect according to the laying requirements. To ensure the stability of the connection at the pipe elbow, a corresponding connection mechanism is usually used for auxiliary installation to improve the connection effect at the pipe elbow.

[0003] The related technology (publication number: CN213018286U) discloses a connection device for installing elbow pipes. The disclosed technical solution is as follows: the first connecting ring and the second connecting ring are fixed by the positioning hole and the positioning pin on the pin, and the elbow pipes at different angles are positioned by the positioning hole and the positioning pin, and then fixed. This achieves the goal of fixing pipes at different angles for connection, and the installation will not be inconvenient due to dead angles.

[0004] The above-disclosed technical solutions reveal the following problems: During the connection of pipes on both sides of the elbow, the required angle between the pipes cannot be determined, which causes inconvenience to the installation process. For the elbow angle of the pipes on both sides, the connection mechanism of the elbow needs to be adjusted. Only by ensuring the fit between the connection mechanism and the two pipes can the sealing of the elbow connection on both sides be guaranteed. In response, we propose a new type of pipe elbow connection mechanism.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the problem of pipe elbow connection in the prior art, this utility model provides a pipe elbow connection mechanism that uses a two-pipe fixing structure combined with a bend angle determining component to achieve a sealed connection at the pipe elbow. The specific technical solution is as follows:

[0007] A pipe elbow connection mechanism includes a bracket, a connecting arm symmetrically rotatably mounted within the inner cavity of the bracket, a pipe holder mounted at the free end of the connecting arm, the pipe holder being connected to the end of the connecting arm via a universal adjustment assembly, a pipe groove formed on the side wall of the pipe holder, and a positioning and locking assembly opposite to the pipe groove being mounted on the pipe holder, a locking insert rotatably mounted on the side wall of the connecting arm away from the universal adjustment assembly, and an insertion hole opposite to the locking insert being formed on the side wall of the pipe holder.

[0008] In the above technical solution, the outer wall of the locking plug is provided with a locking slot in the circumferential direction, the inner cavity of the plug hole is provided with an elastic locking component for locking the locking slot, and the inner wall of the locking slot is provided with a protrusion that disengages from the plug hole.

[0009] The elastic snap-fit ​​assembly includes movable grooves formed on both sides of the inner wall of the socket. A chuck is embedded in the inner cavity of the movable groove. One end of a movable rod is fixedly installed on the outer wall of the chuck. The other end of the movable rod passes through the inner wall of the movable groove and extends into the inner cavity. An elastic element sleeved on the outside of the movable rod is provided between the chuck and the inner wall of the movable groove.

[0010] The universal adjustment assembly includes a universal support block fixedly installed on the pipe clamp, an adjustment groove is provided on the side of the connecting arm away from the locking plug, a universal adjustment seat is fixedly installed on the inner wall of the adjustment groove, deformation grooves are evenly provided along the circumferential edge of the universal adjustment seat, and a locking seat is threadedly connected to the outer wall of the universal adjustment seat.

[0011] The positioning and locking assembly includes a connecting frame fixedly installed on the side wall of the pipe clamp, the inner cavity of the connecting frame being threadedly connected to a threaded post opposite to the pipe clamp groove, and one end of the threaded post being fixedly installed with a positioning clamp opposite to the pipe clamp groove.

[0012] The inner wall of the bracket is evenly provided with scale lines in the circumferential direction, and the outer wall of the connecting arm is provided with a pointer that fits against the inner wall of the bracket.

[0013] Both the locking plug and the chuck have arc-shaped outer walls in the circumferential direction.

[0014] The insertion openings formed between the two connecting brackets and the pipe holder are located on the same side.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the pipe elbow connection mechanism:

[0016] 1. During the carrying process, rotate the two connecting arms to the overlapping position. At this time, the locking plug is engaged inside the socket. Through the cooperation of the locking plug and the socket, the two connecting arms are in a stable overlapping position, which brings convenience to the relevant personnel during the carrying process.

[0017] 2. When connecting pipe elbows, as the connecting arm rotates, the free end of the connecting arm drives the pipe clamp to rotate to the angle corresponding to the pipes on both sides through the pipe clamp seat. Then, through the gap between the locking component and the pipe clamp, it is respectively clamped onto the outer wall of the two pipes, thereby fixing the locking clamp seat to the outer wall of the pipe. According to the position of the two connecting arms, a suitable elbow is selected to connect with the pipes on both sides, ensuring the accuracy of the pipe elbow connection and thus ensuring the sealing of the pipe elbow after connection.

[0018] Third, during the process of connecting the pipes on both sides of the elbow, adjust the position of the pipe clamp according to the universal adjustment component to ensure that the pipe groove of the pipe clamp is in a position that fits against the outer wall of the pipe, thereby ensuring the accuracy of the elbow connection.

[0019] IV. When the two connecting arms are folded for carrying, as one connecting arm rotates, the locking plug on one connecting arm is inserted into the socket on the other connecting arm. This causes the elastic snap-fit ​​component inside the socket to lock the locking slot of the locking plug, thus ensuring that the two connecting arms will not come apart during carrying. When in use, rotate the connecting rod on the base, causing the connecting rod to move the two protrusions on the inner wall of the locking slot to the elastic snap-fit ​​component. Then, remove the locking plug from the socket, thus bringing convenience to the user.

[0020] Fifth, multi-directional adjustment ensures that the pipe clamp fits snugly against the outer wall of the pipe. Then, the locking seat is tightened on the outer wall of the universal adjustment seat to lock the position of the pipe clamp. The locking position of the two pipe clamps is adjusted according to the angle of the pipe elbow to ensure the accuracy of the pipe elbow connection and thus ensure the sealing of the pipe elbow connection.

[0021] 6. After moving the pipe slot of the pipe clamp to the outer wall of the pipe, the threaded column is rotated by the operating wheel. This causes the threaded column to rotate the circular positioning clamp and move it towards the inner wall of the pipe slot. As the positioning clamp moves, it fixes the pipe clamp to the outer wall of the pipe, thus ensuring the stability of the pipe elbow connection process. The position of the positioning clamp can be adjusted according to the pipe specifications to make it suitable for connecting pipe elbows of different specifications.

[0022] 7. As the connecting arm rotates, the pointer rotates with the connecting arm. Based on the position of the pointer on the scale line, the curvature of the pipe connection can be clearly understood, thus making the angle of the elbow connection more accurate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a pipe elbow connection mechanism according to the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a pipe elbow connection mechanism according to the present invention. Figure 2 ;

[0025] Figure 3 This is an exploded view of the structure of a pipe elbow connection mechanism according to this utility model. Figure 1 ;

[0026] Figure 4 This is an exploded view of the structure of a pipe elbow connection mechanism according to this utility model. Figure 2 ;

[0027] Figure 5 for Figure 3 Enlarged view of a portion at point A;

[0028] Figure 6 for Figure 3 A magnified view of section B;

[0029] Figure 7 for Figure 4 A magnified view of a portion at point C;

[0030] in, Figures 1 to 7 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-bracket, 2-connecting arm, 3-pipe seat, 4-connecting frame, 5-threaded column, 6-positioning seat, 7-locking insert, 8-base, 9-universal adjustment seat, 10-moving column, 11-adjustment groove, 12-pipe slot, 13-insertion hole, 14-universal support block, 15-moving groove, 16-moving rod, 17-elastic element, 19-chuck, 20-protrusion, 21-connecting rod, 22-deformation groove, 23-locking seat, 24-fixed column, 25-locking slot, 27-pointer, 28-scale line. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The following are specific implementation cases and appendices. Figure 1-7The present invention will be further described below, but the present invention is not limited to these embodiments.

[0033] A pipe elbow connection mechanism includes a bracket 1. A connecting arm 2 is symmetrically rotatably mounted within the inner cavity of the bracket 1. A pipe clamp 3 is mounted at the free end of the connecting arm 2, and the pipe clamp 3 is connected to the end of the connecting arm 2 via a universal adjustment assembly. Bearings are embedded in the inner walls of the upper and lower sides of the bracket 1. Two ends of a movable column 10 are respectively embedded within the two bearings. Mounting holes penetrating the inner cavity are longitudinally formed on the surfaces of the two connecting arms 2 near one end, allowing the connecting arm 2 to be fixedly sleeved onto the outside of the movable column 10 through the mounting holes near that end.

[0034] Adjustment grooves 11 are formed on the side walls of the two connecting arms 2 away from the support 1. A portion of the universal adjustment assembly is installed on the inner wall of the adjustment groove 11, and the other portion of the universal adjustment assembly is installed on the side wall of the pipe clamp 3. The adjustment grooves 11 allow the pipe clamp 3 to fit against the side wall near the free end of the connecting arm 2, and the pipe clamp 3 is positioned perpendicular to the connecting arm 2. Adjustment grooves 11 are formed on the left side wall of one connecting arm 2 and the right side wall of the other connecting arm 2, so that the two connecting arms 2 have adjustment grooves 11 on different sides. According to the operating position during the pipe elbow docking process, two universal adjustment assemblies are set on both sides and staggered in position.

[0035] The pipe clamp 3 has a pipe groove 12 on its side wall, and a positioning and locking component is provided on the pipe clamp 3 opposite to the pipe groove 12. Arc-shaped pipe grooves 12 are provided on the back-to-back sides of both pipe clamps 3, allowing them to fit against the outer wall of the pipe. After the pipe clamp 3 is fitted against the outer wall of the pipe through the pipe grooves 12, the positioning and locking component fixes the pipe clamp 3 to the outer wall of the pipe. This ensures that the pipe elbows on both sides are in a stable position when connected. A locking insert 7 is rotatably mounted on the side wall of the connecting arm 2 away from the universal adjustment component, and a socket 13 opposite to the locking insert 7 is provided on the side wall of the pipe clamp 3.

[0036] A fixed mounting base 8 is attached to the left side surface of one of the connecting arms 2, facing upwards. A mounting bearing is embedded in the left side surface of the base 8 near the top. One end of the connecting rod 21 is embedded inside the bearing, and the other end of the connecting rod 21 is vertically fixed to the surface of the locking plug 7, allowing the locking plug 7 to rotate on the base 8 via the connecting rod 21. Another fixed mounting base 8 is attached to the right side surface of the other connecting arm 2, facing downwards. A mounting bearing is embedded in the surface of the base 8 near the lower end, allowing the connecting rod 21 of the other locking plug 7 to be embedded inside the bearing.

[0037] A rotating seat is externally sleeved on the connecting rod 21. A locking bolt is threaded into the inner cavity of the rotating seat, and the locking bolt passes through the rotating seat and engages with the surface of the base 8. Two locking inserts 7 are located on opposite surfaces of the two connecting arms 2 and are staggered vertically to ensure that the two connecting arms 2 do not interfere with each other when locked. The locking inserts 7 are made of elastic material, and the locking insert 7 on one connecting arm 2 uses the properties of the elastic material to make an interference fit with the insertion hole 13 of the pipe clamp 3 on the other connecting arm 2.

[0038] During carrying, the two connecting arms 2 are rotated to the overlapping position. At this time, the locking plug 7 is engaged inside the socket 13. Through the interference fit between the locking plug 7 and the socket 13, the two connecting arms 2 are in a stable overlapping position, which brings convenience to the relevant personnel during the carrying process.

[0039] When connecting the pipe elbow, rotate the two connecting arms 2 according to the positions of the pipes on both sides. As the connecting arms 2 rotate, the free ends of the connecting arms 2 drive the pipe clamps 12 to rotate to the angle corresponding to the pipes on both sides through the pipe clamps 3. Then, the clamps are engaged with the outer walls of the two pipes through the gap between the locking assembly and the pipe clamps 12. Then, adjust the position of the pipe clamps 12 so that they fit against the outer wall of the pipe. Finally, lock them in place using the locking assembly, thereby fixing the locking clamps 3 to the outer wall of the pipe.

[0040] Based on the positions of the two connecting arms 2, appropriate elbows are selected to connect with the pipes on both sides, ensuring the accuracy of the pipe elbow connection and thus guaranteeing the sealing performance after the pipe elbow connection. During the clamping process with the pipes on both sides of the elbow, the position of the pipe clamp 3 is adjusted according to the universal adjustment component to ensure that the pipe groove 12 of the pipe clamp 3 is in contact with the outer wall of the pipe, thereby ensuring the accuracy of the elbow connection.

[0041] The locking plug 7 has a locking slot 25 circumferentially formed on its outer wall, and the inner cavity of the socket 13 is provided with an elastic engaging component for engaging the locking slot 25. The inner wall of the locking slot 25 is embedded with a protrusion 20 that disengages from the socket 13. Elastic engaging components are provided on the inner walls on both sides of the socket 13.

[0042] When the two connecting arms 2 are folded and carried, as one of the connecting arms 2 rotates, the locking plug 7 on one of the connecting arms 2 is inserted into the socket 13 on the other connecting arm 2. As the locking plug 7 moves, the elastic snap-fit ​​component in the socket 13 locks the locking slot 25 of the locking plug 7, thereby ensuring that the two connecting arms 2 will not come apart during carrying.

[0043] In use, the connecting rod 21 is rotated on the base 8, causing the connecting rod 21 to move the two protrusions 20 on the inner wall of the locking slot 25 to the elastic locking assembly. Then the locking plug 7 is removed from the socket 13, thus bringing convenience to the user.

[0044] It is worth noting that the flexible snap-fit ​​assembly includes movable grooves 15 formed on both sides of the inner wall of the socket 13. The shape of the movable grooves 15 on both sides corresponds to the chuck 19 and is circular. The chuck 19 is embedded in the inner cavity of the movable groove 15. One end of the movable rod 16 is fixedly installed on the outer wall of the chuck 19. The other end of the movable rod 16 passes through the inner wall of the movable groove 15 and extends into the inner cavity. After passing through the inner wall of the movable groove 15, the movable rod 16 extends into the inner cavity of the pipe holder 3, so that the movable rod 16 slides within the extended cavity of the pipe holder 3.

[0045] An elastic element 17 is provided between the chuck 19 and the inner wall of the movable groove 15, and is sleeved on the outside of the movable rod 16. The elastic element 17 can be a compression spring. One end of the elastic element 17 is fixedly installed on the inner wall of the movable groove 15, and the other end of the elastic element 17 is fixedly installed on the outer wall of the chuck 19. The elastic element 17 is movably sleeved on the outside of the movable rod 16, so that the elastic element 17 slides against the outer wall of the movable rod 16.

[0046] After the circular locking insert 7 is inserted into the socket 13, as the curved surface of the locking insert 7 contacts the two chucks 19, the elastic element 17 is compressed and generates elastic force. After the curved surface of the locking insert 7 slides past the chucks 19, the elastic force of the elastic element 17 causes the chucks 19 to engage in the locking slot 25 of the locking insert 7, thereby ensuring the stability of the connecting arm 2 after folding.

[0047] In use, rotating the locking plug 7 causes the two cylindrical protrusions 20 on the locking plug 7 to rotate to the position where they contact the chuck 19. As the chuck 19 is pressed and moved, the locking plug 7 is removed from the socket 13, thus facilitating the operation process for relevant personnel.

[0048] Furthermore, the universal adjustment assembly includes a universal support block 14 fixedly mounted on the pipe clamp 3. One end of the fixing post 24 is vertically fixed to the surface of the pipe clamp 3, and the other end of the fixing post 24 is fixedly mounted on the outer wall of the spherical universal support block 14, thereby fixing the universal support block 14 to the pipe clamp 3. An adjustment groove 11 is provided on the side of the connecting arm 2 away from the locking plug 7. A universal adjustment seat 9 is fixedly mounted on the inner wall of the adjustment groove 11. Deformation grooves 22 are evenly provided along the circumferential edge of the universal adjustment seat 9, and a locking seat 23 is threadedly connected to the outer wall of the universal adjustment seat 9. A spherical cavity is provided in the inner cavity of the universal adjustment seat 9, and the shape of the spherical cavity corresponds to the spherical universal support 14. Through the four deformation grooves 22 at the adjustment port edge of the universal adjustment seat 9, the universal support block 14 can be embedded into the interior of the universal adjustment seat 9.

[0049] When adjusting the contact position between the pipe clamp 3 and the outer wall of the pipe, the locking seat 23 is tightened on the outer wall of the universal adjusting seat 9, causing the universal support block 14 to loosen from the inner cavity of the universal adjusting seat 9. Then, the pipe clamp 3 drives the universal support block 14 to rotate within the inner cavity of the universal adjusting seat 9. Multi-directional adjustment ensures that the pipe groove 12 fits snugly against the outer wall of the pipe. Then, the locking seat 23 is tightened on the outer wall of the universal adjusting seat 9 to lock the position of the pipe clamp 3. Adjusting the locking positions of the two pipe clamps 3 according to the angle of the pipe elbow ensures the accuracy of the pipe elbow connection and thus guarantees the sealing of the pipe elbow connection.

[0050] Additionally, the positioning and locking assembly includes a connecting frame 4 fixedly mounted on the side wall of the pipe clamp 3. The inner cavity of the connecting frame 4 is threadedly connected to a threaded post 5 opposite to the pipe clamp groove 12. One end of the threaded post 5 is fixedly mounted with a positioning seat 6 opposite to the pipe clamp groove 12. The connecting frame 4 is L-shaped, with the vertical portion parallel to the pipe clamp 3. A threaded through-hole penetrating the inner cavity is formed on the surface of the connecting frame 4, allowing the threaded post 5 to connect to the connecting frame 4 through the threaded through-hole. One end of the threaded post 5 is fixedly mounted with the positioning seat 6 on the opposite side of the pipe clamp groove 12, and the other end of the threaded post 5 extends to the outside of the connecting frame 4 and is fixedly connected to the operating wheel.

[0051] After the pipe clamp 3 is moved to the outer wall of the pipe, the threaded post 5 is rotated by the operating wheel, causing the threaded post 5 to rotate and move the circular positioning clamp 6 towards the inner wall of the pipe clamp 12. As the positioning clamp 6 moves, the pipe clamp 3 is fixed to the outer wall of the pipe, thus ensuring the stability of the pipe elbow connection process. The position of the positioning clamp 6 can be adjusted according to the pipe specifications to accommodate pipe elbow connections of different specifications.

[0052] Furthermore, the inner wall of the bracket 1 is evenly provided with scale lines 28 on the circumferential direction, and the outer wall of the connecting arm 2 is provided with a pointer 27 that fits against the inner wall of the bracket 1. As the connecting arm 2 rotates, the pointer 27 rotates with the connecting arm 2. According to the position of the pointer 27 on the scale line 28, the curvature of the pipe connection can be clearly understood, thereby making the angle of the elbow connection more accurate.

[0053] Both the locking plug 7 and the chuck 19 have curved outer walls in the circumferential direction. The curved surface reduces the friction between the contact surfaces of the locking plug 7 and the chuck 19, thus making the locking process smoother.

[0054] The insertion openings formed between the two connecting brackets 4 and the pipe clamps 3 are located on the same side. This makes it easier to clamp the two pipes together and avoids interference.

[0055] This embodiment describes a pipe elbow connection mechanism. The working principle is as follows: First, the two connecting arms 2 are rotated outside the movable column 10, moving the pipe groove 12 of the pipe clamp 3 to the outer wall of the pipe. Then, the locking seat 23 is tightened on the outer wall of the universal adjusting seat 9, loosening the universal support block 14 from the inner cavity of the universal adjusting seat 9. The pipe clamp 3 then drives the universal support block 14 to rotate within the inner cavity of the universal adjusting seat 9, ensuring that the pipe groove 12 fits against the outer wall of the pipe through multi-directional adjustment. Finally, the locking seat 23 is tightened on the outer wall of the universal adjusting seat 9, locking the position of the pipe clamp 3.

[0056] Then, the threaded column 5 is rotated by the operating wheel, which causes the threaded column 5 to rotate and move the circular positioning bracket 6 towards the inner wall of the pipe slot 12. As the positioning bracket 6 moves, the pipe bracket 3 is fixed to the outer wall of the pipe.

[0057] Then, based on the curvature of the pipe bend, the pipe interfaces on both sides are fixed by the pipe clamps 3 on the two connecting arms 2, and finally the pipe bend is connected.

[0058] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe elbow connection mechanism, comprising a support (1), wherein a connecting arm (2) is symmetrically and rotatably arranged in the inner cavity of the support (1), characterized in that: The free end of the connecting arm (2) is provided with a pipe holder (3), and the pipe holder (3) is connected to the end of the connecting arm (2) through a universal adjustment assembly. The side wall of the pipe holder (3) is provided with a pipe groove (12), and the pipe holder (3) is provided with a positioning and locking assembly opposite to the pipe groove (12). A locking plug (7) is rotatably provided on the side wall of the connecting arm (2) away from the universal adjustment assembly, and a socket (13) opposite to the locking plug (7) is provided on the side wall of the pipe holder (3).

2. The pipe elbow connection mechanism according to claim 1, characterized in that: The outer wall of the locking plug (7) is provided with a locking slot (25) in the circumferential direction. The inner cavity of the socket (13) is provided with an elastic locking component for locking the locking slot (25). The inner wall of the locking slot (25) is provided with a protrusion (20) that disengages from the socket (13).

3. The pipe elbow connection mechanism according to claim 2, characterized in that: The elastic snap-fit ​​assembly includes movable grooves (15) formed on both sides of the inner wall of the insertion hole (13). A chuck (19) is embedded in the inner cavity of the movable groove (15). One end of a movable rod (16) is fixedly installed on the outer wall of the chuck (19). The other end of the movable rod (16) passes through the inner wall of the movable groove (15) and extends into the inner cavity. An elastic element (17) sleeved on the outside of the movable rod (16) is provided between the chuck (19) and the inner wall of the movable groove (15).

4. The pipe elbow connection mechanism according to claim 1, characterized in that: The universal adjustment assembly includes a universal support block (14) fixedly installed on the pipe clamp (3). An adjustment groove (11) is provided on the side of the connecting arm (2) away from the locking plug (7). A universal adjustment seat (9) is fixedly installed on the inner wall of the adjustment groove (11). A deformation groove (22) is evenly provided along the circumferential edge of the universal adjustment seat (9). A locking seat (23) is threadedly connected to the outer wall of the universal adjustment seat (9).

5. A pipe elbow connection mechanism according to claim 1, characterized in that: The positioning and locking assembly includes a connecting bracket (4) fixedly installed on the side wall of the pipe clamp (3). The inner cavity of the connecting bracket (4) is threadedly connected to a threaded post (5) opposite to the pipe groove (12). One end of the threaded post (5) is fixedly installed with a positioning clamp (6) opposite to the pipe groove (12).

6. A pipe elbow connection mechanism according to claim 1, characterized in that: The inner wall of the bracket (1) is uniformly provided with scale lines (28) in the circumferential direction, and the outer wall of the connecting arm (2) is provided with a pointer (27) that fits against the inner wall of the bracket (1).

7. A pipe elbow connection mechanism according to claim 3, characterized in that: Both the locking plug (7) and the chuck (19) have arc-shaped outer walls in the circumferential direction.

8. A pipe elbow connection mechanism according to claim 5, characterized in that: The insertion openings formed between the two connecting brackets (4) and the pipe holder (3) are located on the same side.

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