Shock-resistant elbow pipe fitting

Abstract

The utility model discloses an anti-impact elbow pipe fitting, and relates to the technical field of elbows. Comprising a bent pipe, the bent pipe comprises an inner pipe and an outer pipe, the end of the inner pipe and the end of the outer pipe are jointly connected with a flange, an inner cavity of the inner pipe corresponds to a center hole of the flange, the outer side wall of the inner pipe is connected with the outer pipe through a reinforcing piece, one end of the inner pipe is detachably connected with a mounting pipe, an inner cavity of the mounting pipe is fixedly connected with a mounting rod, and one side of the mounting rod is rotationally connected with a rotating rod; the end of the rotating rod is connected with an impeller. According to the anti-impact elbow pipe fitting, by arranging the inner pipe and the outer pipe, when the inner pipe is broken, the whole elbow pipe can be prevented from leaking, meanwhile, the impeller can rotate under the impact of fluid, so that the water flow speed is slowed down, and a certain protection effect is achieved on the bent part of the elbow pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe bends, in particular to an impact-resistant elbow pipe fitting. Background Art

[0002] Elbow pipe fittings refer to pipe fittings that change the direction of the pipeline in the piping system. Due to their good comprehensive performance, elbow pipe fittings are widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, water heating, fire protection, electric power, aerospace, shipbuilding and other basic projects.

[0003] Most existing elbow pipe fittings are a single bend with a relatively simple structure. The elbow is easily broken by long-term impact and cavitation of water flow. Moreover, if the impact force of the water flow is large, such as when a water hammer effect occurs, the elbow is also easily broken. Utility Model Content

[0004] The utility model provides an impact-resistant elbow pipe fitting to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an impact-resistant elbow pipe fitting, comprising an elbow, the elbow comprising an inner tube and an outer tube, the ends of the inner tube and the outer tube being commonly connected with a flange, the inner cavity of the inner tube corresponding to the center hole of the flange, the outer side wall of the inner tube being connected to the outer tube through a reinforcement, one end of the inner tube being detachably connected to a mounting tube, the inner cavity of the mounting tube being fixedly connected to a mounting rod, one side of the mounting rod being rotatably connected to a rotating rod, and the end of the rotating rod being connected to an impeller.

[0006] Furthermore, the reinforcement is a compression ring, and the outer wall of the compression ring is wavy as a whole, with the crest part connected to the inner wall of the outer tube and the trough part connected to the outer wall of the inner tube.

[0007] Furthermore, the reinforcement member is a reinforcement rod, which is in an I-shape as a whole, with both ends of the reinforcement rod fixedly connected to the inner tube and the outer tube, and the reinforcement rod is evenly arranged around the outer wall of the inner tube.

[0008] Furthermore, one end of the mounting tube is integrally connected with a connector connected to its inner cavity, the outer diameter of the connector is larger than the outer diameter of the mounting tube, and one end of the inner tube is formed with a groove with an outer diameter larger than the inner diameter of the inner tube, and the connector can pass through the center hole of the flange and be placed in the groove.

[0009] Furthermore, a sealing gasket is installed on the groove.

[0010] Furthermore, an outer wall of the mounting tube is formed with an external thread, and an inner cavity at one end of the inner tube is formed with an internal thread that is threadedly connected to the external thread.

[0011] Compared with the prior art, the utility model provides an impact-resistant elbow pipe fitting with the following beneficial effects: the impact-resistant elbow pipe fitting, by arranging an inner tube and an outer tube, can prevent leakage of the entire elbow pipe when the inner tube ruptures; at the same time, the impeller arrangement can also rotate under the impact of the fluid to slow down the water flow speed, thereby providing a certain degree of protection for the bent part of the elbow pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure under the dismantling and installation pipe of the utility model;

[0014] Figure 3 This is a schematic diagram of the planar structure of the utility model;

[0015] Figure 4 This is an enlarged schematic diagram of point A of the present utility model;

[0016] Figure 5 This is a schematic diagram of the side section structure of the utility model connected with the anti-compression ring;

[0017] Figure 6 It is a schematic diagram of the side sectional structure under the connection reinforcement block of the utility model.

[0018] In the figure: 1. Bend pipe; 2. Outer pipe; 3. Inner pipe; 4. Flange; 5. Mounting pipe; 6. Anti-pressure ring; 7. Mounting rod; 8. Rotating rod; 9. Impeller; 10. Connector; 11. External thread; 12. Internal thread; 13. Groove; 14. Sealing gasket; 15. Reinforcement rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-6The utility model discloses an impact-resistant elbow pipe fitting, including an elbow 1, the elbow 1 including an inner tube 3 and an outer tube 2, the ends of the inner tube 3 and the outer tube 2 are commonly connected with a flange 4, the inner cavity of the inner tube 3 corresponds to the center hole of the flange 4, the outer side wall of the inner tube 3 is connected to the outer tube 2 through a reinforcement, one end of the inner tube 3 is detachably connected to a mounting tube 5, the inner cavity of the mounting tube 5 is fixedly connected to a mounting rod 7, one side of the mounting rod 7 is rotatably connected to a rotating rod 8, and the end of the rotating rod 8 is connected to an impeller 9.

[0021] The reinforcement is arranged along the outer circumference length direction of the inner tube 3 .

[0022] Specifically, the reinforcement is a compression ring 6 , and the outer wall of the compression ring 6 is wavy as a whole, with its crest part connected to the inner wall of the outer tube 2 and its trough part connected to the outer wall of the inner tube 3 .

[0023] In this embodiment, the anti-compression ring 6 is located between the inner tube 3 and the outer tube 2 , so that the inner tube 3 and the outer tube 2 are connected together, so as to stabilize the inner tube 3 .

[0024] Specifically, the reinforcement member is a reinforcement rod 15 , which is in an I-shape as a whole. Two ends of the reinforcement rod 15 are fixedly connected to the inner tube 3 and the outer tube 2 , and the reinforcement rod 15 is evenly arranged around the outer wall of the inner tube 3 .

[0025] In this embodiment, the reinforcing rod 15 is located between the inner tube 3 and the outer tube 2 to reinforce the inner tube 3 .

[0026] Specifically, one end of the mounting tube 5 is integrally connected with a connector 10 connected to its inner cavity, the outer diameter of the connector 10 is larger than the outer diameter of the mounting tube 5, and one end of the inner tube 3 is formed with a groove 13 whose outer diameter is larger than the inner diameter of the inner tube 3, and the connector 10 can pass through the center hole of the flange 4 and be placed in the groove 13.

[0027] An external thread 11 is formed on the outer wall of the mounting tube 5 , and an internal thread 12 that matches and is threadedly connected to the external thread 11 is formed in the inner cavity of one end of the inner tube 3 .

[0028] In this embodiment, the inner diameter of the groove 13 is the same as the inner diameter of the inner tube 3. When the mounting tube 5 is installed in the inner cavity of the inner tube 3 by threading the outer thread 11 to the inner thread 12 of the inner tube 3, the end of the connector 10 is pressed against the groove 13 close to one end of the mounting tube 5.

[0029] Specifically, a sealing gasket 14 is mounted on the groove 13 .

[0030] In this embodiment, the sealing gasket 14 is placed in the groove 13 , and when the connector 10 is pressed against the groove 13 , the sealing gasket 14 can fit in place.

[0031] To sum up, the impact-resistant elbow pipe fitting, by setting the inner tube 3 and the outer tube 2, can prevent the entire elbow 1 from leaking when the inner tube 3 ruptures. At the same time, the impeller 9 can also rotate under the impact of the fluid to slow down the water flow speed, thereby playing a certain protective role on the bent part of the elbow 1.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant elbow pipe fitting, comprising an elbow (1), characterized in that: The bent pipe (1) comprises an inner pipe (3) and an outer pipe (2); the ends of the inner pipe (3) and the outer pipe (2) are commonly connected to a flange (4); the inner cavity of the inner pipe (3) corresponds to the central hole of the flange (4); the outer side wall of the inner pipe (3) is connected to the outer pipe (2) via a reinforcement member; one end of the inner pipe (3) is detachably connected to a mounting pipe (5); the inner cavity of the mounting pipe (5) is fixedly connected to a mounting rod (7); one side of the mounting rod (7) is rotatably connected to a rotating rod (8); the end of the rotating rod (8) is connected to an impeller (9).

2. The impact-resistant elbow pipe fitting according to claim 1, characterized in that: The reinforcing member is a compression ring (6), and the outer wall of the compression ring (6) is wavy as a whole, with its crest portion connected to the inner wall of the outer tube (2) and its trough portion connected to the outer wall of the inner tube (3).

3. The impact-resistant elbow pipe fitting according to claim 1, characterized in that: The reinforcing member is a reinforcing rod (15), and the reinforcing rod (15) is in an I-shape as a whole. The two ends of the reinforcing rod (15) are fixedly connected to the inner tube (3) and the outer tube (2), and the reinforcing rod (15) is evenly arranged around the outer wall of the inner tube (3).

4. The impact-resistant elbow pipe fitting according to claim 1, characterized in that: One end of the mounting tube (5) is integrally connected with a connector (10) in communication with its inner cavity, the outer diameter of the connector (10) being larger than the outer diameter of the mounting tube (5), and one end of the inner tube (3) is formed with a groove (13) having an outer diameter larger than the inner diameter of the inner tube (3), and the connector (10) can pass through the center hole of the flange (4) and be placed in the groove (13).

5. The impact-resistant elbow pipe fitting according to claim 4, characterized in that: A sealing gasket (14) is mounted on the groove (13).

6. The impact-resistant elbow pipe fitting according to claim 4, characterized in that: An external thread (11) is formed on the outer wall of the mounting tube (5), and an internal thread (12) threadably connected to the external thread (11) is formed in the inner cavity of one end of the inner tube (3).

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