Steel pipe elbow with extension function

Abstract

The utility model relates to the technical field of steel pipe elbows, and discloses a steel pipe elbow with a lengthening function, which comprises an elbow steel pipe, a connecting mechanism, a connecting steel pipe, an outer sealing gasket and an inner sealing gasket, the connecting mechanism is arranged at the connecting position of the elbow steel pipe and the connecting steel pipe, and the connecting mechanism comprises two semicircular shells and a hinge. Clamping blocks are fixedly connected to the sides, close to the elbow steel pipe, of the interiors of the two semicircular shells, springs are fixedly connected to the upper portions and the lower portions of the sides, away from the elbow steel pipe, of the two clamping blocks, moving blocks are fixedly connected to one ends of the two springs on the same side, and rubber pads are fixedly connected to the sides, away from the elbow steel pipe, of the interiors of the two semicircular shells. According to the utility model, the relative position of the elbow steel pipe and the connecting steel pipe can be adjusted through the matched use of the elbow steel pipe and the connecting steel pipe, and meanwhile, the connection between the adjusted elbow steel pipe and the connecting steel pipe is firmer through the connecting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe elbow technology, and in particular to a steel pipe elbow with an extension function. Background Technology

[0002] In piping systems, elbows are pipe fittings that change the direction of the pipeline. According to the angle, the three most commonly used are 45°, 90° and 180°. In addition, depending on the project requirements, there are also other non-standard angle elbows such as 60°. The materials of elbows include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics.

[0003] Existing patent (CN221780233U) discloses a steel pipe elbow with an extension function. By configuring a steel pipe elbow, an external thread on the elbow, a threaded sleeve, and an internal thread on the sleeve, the relative positions of the steel pipe elbow and the threaded sleeve are adjusted, thereby adjusting the total length of the steel pipe, threaded sleeve, and steel pipe elbow after connection. This eliminates the adverse effects caused by errors in worker cutting of the steel pipe, thus solving the problems mentioned in the background art. One end of the threaded sleeve is fitted with a steel pipe, and one end of the steel pipe is provided with an external thread. The steel pipe external thread and the sleeve internal thread are connected by thread. This utility model uses a steel pipe elbow, a steel pipe elbow external thread, a threaded sleeve, and a sleeve internal thread to cooperate and adjust the relative position of the steel pipe elbow and the threaded sleeve, thereby adjusting the total length of the steel pipe, threaded sleeve, and steel pipe elbow after connection. This eliminates the adverse effects caused by errors in cutting steel pipes by workers. When the above patent is used, the main connection method is threaded connection. Relying solely on the threaded connection may cause loosening when subjected to external force, resulting in an unstable connection and potential safety hazards.

[0004] Therefore, those skilled in the art have provided a steel pipe elbow with an extension function to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a steel pipe elbow with an extension function. Through the coordinated use of No. 1 thread, No. 2 thread, elbow steel pipe and connecting steel pipe, the relative positions of elbow steel pipe and connecting steel pipe are adjusted to eliminate the adverse effects caused by errors in steel pipe cutting by workers. At the same time, the connecting mechanism makes the connection between the adjusted elbow steel pipe and connecting steel pipe more secure.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A steel pipe elbow with an extension function includes an elbow steel pipe, a connecting mechanism, a connecting steel pipe, an outer sealing gasket, and an inner sealing gasket. The connecting mechanism is located at the connection position between the elbow steel pipe and the connecting steel pipe. The connecting mechanism includes two semi-circular shells and a hinge. A locking block is fixedly connected to the inside of each of the two semi-circular shells on the side closer to the elbow steel pipe. Springs are fixedly connected to the upper and lower sides of each of the two locking blocks on the side away from the elbow steel pipe.

[0008] Two springs on the same side are fixedly connected to one end of a movable block. Rubber pads are fixedly connected to the inside of the two semi-circular shells on the side away from the bend steel pipe. Connecting blocks are fixedly connected to the upper part of the outer surface of the two semi-circular shells.

[0009] Furthermore, the two semi-circular shells are connected by a hinge, and holes are opened at the center of opposite sides of the two connecting blocks.

[0010] Furthermore, a bolt is provided between the two holes, and a nut is threaded onto one side of the outer surface of the bolt.

[0011] Furthermore, a No. 1 thread is provided on the outer surface of both ends of the elbow steel pipe away from the bending side, and a limit groove is provided on both sides of the outer surface of both ends of the elbow steel pipe near the middle.

[0012] Furthermore, limiting blocks are fixedly fitted on the outer surfaces of both ends of the elbow steel pipe near the bending side, and the outer surface of the movable block on the same side is movably fitted inside the semi-circular shell.

[0013] Furthermore, the connecting steel pipe has a No. 2 thread inside, and a sliding groove is formed on the outer surface of the connecting steel pipe.

[0014] Furthermore, the two holes are connected, and the locking block engages with the locking slot.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model proposes a steel pipe elbow with an extension function. The elbow steel pipe and the connecting steel pipe are connected by No. 1 thread and No. 2 thread. By adjusting the relative position of the connection, the adverse effects caused by the error of the worker cutting the steel pipe can be eliminated. The bolts and nuts can make the two semi-circular shells fit tightly together. The locking block engages with the locking groove, so that the semi-circular shells are firmly fixed on the elbow steel pipe. The rubber pad is located in the sliding groove and is in close contact with the sliding groove. By setting the rubber pad, the friction is increased to prevent the connection between the connecting steel pipe and the elbow steel pipe from becoming loose when the connecting steel pipe is subjected to external force.

[0017] 2. The present invention proposes a steel pipe elbow with an extension function. The outer sealing gasket is located between the locking block and the limiting block and is in close contact with the locking block and the limiting block. The inner sealing gasket is located between the connecting steel pipe and the moving block. The spring pushes the moving block so that the inner sealing gasket is always in close contact with the connecting steel pipe. The setting of two sealing gaskets can better improve the overall sealing performance. Attached Figure Description

[0018] Figure 1 This is an isometric schematic diagram of the present invention;

[0019] Figure 2 This is a bottom isometric view of the present invention;

[0020] Figure 3 This is a schematic diagram of the steel pipe of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the connecting mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the connection mechanism structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the semi-circular outer shell of this utility model.

[0024] Legend:

[0025] 1. No. 1 thread; 2. Locking groove; 3. Limiting block; 4. Elbow steel pipe; 5. Connecting mechanism; 6. Connecting steel pipe; 7. Slide groove; 8. No. 2 thread; 9. Outer sealing gasket; 10. Inner sealing gasket; 501. Semi-circular outer shell; 502. Bolt; 503. Nut; 504. Connecting block; 505. Moving block; 506. Locking block; 507. Spring; 508. Hinge; 509. Hole; 5010. Rubber pad. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-6 One embodiment provided by this utility model:

[0028] A steel pipe elbow with an extension function includes an elbow steel pipe 4, a connecting mechanism 5, a connecting steel pipe 6, an outer sealing gasket 9, and an inner sealing gasket 10. The connecting mechanism 5 is located at the connection between the elbow steel pipe 4 and the connecting steel pipe 6. The connecting mechanism 5 includes two semi-circular shells 501 and a hinge 508. A locking block 506 is fixedly connected to the inside of the two semi-circular shells 501 on the side closer to the elbow steel pipe 4. Springs 507 are fixedly connected to the upper and lower sides of the two locking blocks 506 on the side away from the elbow steel pipe 4.

[0029] Two springs 507 on the same side are fixedly connected to one end of a movable block 505. Rubber pads 5010 are fixedly connected to the inside of each of the two semi-circular shells 501 on the side furthest from the elbow steel pipe 4. Connecting blocks 504 are fixedly connected to the upper outer surface of each of the two semi-circular shells 501. The two semi-circular shells 501 are connected by hinges 508. Holes 509 are opened near the center on opposite sides of each of the two connecting blocks 504. A bolt 502 is installed between the two holes 509. A threaded connection is made to one side of the outer surface of the bolt 502. The mother 503, the elbow steel pipe 4, has a No. 1 thread 1 on the outer surface of both ends away from the bend. The elbow steel pipe 4 has a limit groove on both sides near the middle of the outer surface of both ends. The elbow steel pipe 4 has a limit block 3 fixedly fitted on the outer surface of both ends near the bend. The outer surface of the same side moving block 505 is movably fitted inside the semi-circular shell 501. The connecting steel pipe 6 has a No. 2 thread 8 inside. The outer surface of the connecting steel pipe 6 has a sliding groove 7. The two holes 509 are connected. The locking block 506 locks into the locking groove 2.

[0030] Specifically, first, the inner sealing gasket 10 and the outer sealing gasket 9 are sequentially fitted onto the connecting steel pipe 6. Then, they are connected via thread 1 and thread 8 to connect the connecting steel pipe 6 and the elbow steel pipe 4. After adjusting to the appropriate position, the outer sealing gasket 9 and the inner sealing gasket 10 are moved to the appropriate position. Then, the two semi-circular outer shells 501 are placed at a certain angle at the lower end of the connection between the connecting steel pipe 6 and the elbow steel pipe 4, so that the lower end of the outer sealing gasket 9 is located between the limiting block 3 and the locking block 506. By moving the position of the moving block 505, the connection is made more stable. The inner sealing gasket 10 is located between the moving block 505 and the connecting steel pipe 6. Then, by rotating, the two semi-circular shells 501 are brought into contact, covering the connection between the elbow steel pipe 4 and the connecting steel pipe 6. The bolt 502 is passed through the hole 509 on the two connected blocks 504, and then the nut 503 is tightened to make the two semi-circular shells 501 fit tightly together, so that the locking block 506 engages with the locking groove 2, the rubber gasket 5010 is pressed against the sliding groove 7, and the spring 507 pushes the moving block 505 to make the inner sealing gasket 10 press tightly against the connecting steel pipe 6.

[0031] Working principle: First, the inner sealing gasket 10 and the outer sealing gasket 9 are sequentially placed on the connecting steel pipe 6, connecting the connecting steel pipe 6 to the elbow steel pipe 4. After adjusting to a suitable position, the outer sealing gasket 9 and the inner sealing gasket 10 are moved to a suitable position. Then, the two semi-circular outer shells 501 are placed at a certain angle at the lower end of the connection between the connecting steel pipe 6 and the elbow steel pipe 4, so that the lower end of the outer sealing gasket 9 is located between the limiting block 3 and the locking block 506. By moving the position of the moving block 505, the inner sealing gasket 10 is positioned between the moving block 505 and the connecting steel pipe 6. Then, by rotating, the two semi-circular outer shells 501 are brought into contact, thus... The connection between the elbow steel pipe 4 and the connecting steel pipe 6 is wrapped, so that the locking block 506 engages with the locking groove 2. The rubber pad 5010 is tightly attached to the sliding groove 7. The rubber pad 5010 is set to increase the friction to prevent the connection between the connecting steel pipe 6 and the elbow steel pipe 4 from becoming loose when subjected to external force. The spring 507 pushes the moving block 505 to make the inner sealing gasket 10 tightly attached to the connecting steel pipe 6. The setting of two sealing gaskets can better improve the overall sealing performance. The bolt 502 is passed through the hole 509 on the two fitted connecting blocks 504, and then the nut 503 is tightened to complete the installation of the connecting mechanism 5.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel pipe elbow with an extension function, comprising an elbow steel pipe (4), a connecting mechanism (5), a connecting steel pipe (6), an outer sealing gasket (9), and an inner sealing gasket (10), characterized in that: The connecting mechanism (5) is set at the position where the elbow steel pipe (4) and the connecting steel pipe (6) are connected. The connecting mechanism (5) includes two semi-circular shells (501) and a hinge (508). The two semi-circular shells (501) are fixedly connected to the side of the elbow steel pipe (4) with a locking block (506). The two locking blocks (506) are fixedly connected to the top and bottom of the side away from the elbow steel pipe (4). Two springs (507) on the same side are fixedly connected to one end of a moving block (505). Rubber pads (5010) are fixedly connected to the inside of the two semi-circular shells (501) on the side away from the elbow steel pipe (4). Connecting blocks (504) are fixedly connected to the upper part of the outer surface of the two semi-circular shells (501).

2. The steel pipe elbow with extension function according to claim 1, characterized in that: The two semi-circular shells (501) are connected by a hinge (508), and the two connecting blocks (504) have holes (509) at the center of opposite sides.

3. A steel pipe elbow with an extension function according to claim 2, characterized in that: A bolt (502) is provided between the two holes (509), and a nut (503) is threaded onto one side of the outer surface of the bolt (502).

4. A steel pipe elbow with an extension function according to claim 1, characterized in that: The outer surfaces of both ends of the elbow steel pipe (4) away from the bending side are provided with No. 1 thread (1), and the outer surfaces of both ends of the elbow steel pipe (4) are provided with limit grooves on both sides near the middle.

5. A steel pipe elbow with an extension function according to claim 1, characterized in that: The outer surfaces of both ends of the elbow steel pipe (4) near the bending side are fixedly fitted with limiting blocks (3), and the outer surface of the moving block (505) on the same side is movably fitted inside the semi-circular shell (501).

6. A steel pipe elbow with an extension function according to claim 1, characterized in that: The connecting steel pipe (6) is provided with a No. 2 thread (8) inside, and a groove (7) is provided on the outer surface of the connecting steel pipe (6).

7. A steel pipe elbow with an extension function according to claim 2, characterized in that: The two holes (509) are connected, and the locking block (506) engages with the locking slot (2).

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