Connecting structure for circulating pipeline

Abstract

The utility model relates to the technical field of pipeline connection, and discloses a connecting structure for circulating pipelines, which comprises a first connecting pipe and a second connecting pipe, flange plates are fixedly connected to the sides, close to each other, of the first connecting pipe and the second connecting pipe, and a plurality of threaded rods are rotatably connected to the side, away from the second connecting pipe, of the flange plate on the first connecting pipe at equal intervals; the threaded rods are connected with moving blocks in a threaded mode, the sides, close to the second connecting pipe, of the moving blocks are fixedly connected with limiting plates, fixing grooves are formed in the ends, close to the center of the second connecting pipe, of the limiting plates, and elastic pieces are fixedly connected into the fixing grooves. The movable block drives the limiting plate and the limiting block to move, so that a flange plate of the second connecting pipe is limited, the limiting block abuts against the end face of the flange plate of the second connecting pipe, stress generated when the first connecting pipe and the second connecting pipe are connected is counteracted, and a worker can screw bolts more conveniently for fixation.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to a connection structure for a circulation pipeline. Background Art

[0002] A circulation tube is a heat exchange device that utilizes natural convection of fluids and is widely used in systems such as water heaters and solar heaters. Its operating principle is based on the fact that the density of the hot fluid is lower than that of the cold fluid, resulting in a buoyancy difference that causes the fluid to rise, thus achieving natural circulation. In a closed circulation system, when the fluid is heated, it rises to the top of the system, releases heat through the heat exchanger, and then cools and sinks, forming an efficient circulation flow. This technology requires no external power, is economical and environmentally friendly, and is suitable for applications requiring continuous and stable heat exchange.

[0003] At present, when the circulating pipe is finally connected to form a closed circulating pipe, it is necessary to align the pipes at both ends and screw them together to overcome the influence of stress. During this installation process, the workers need to overcome the large stress, which is not labor-saving. In addition, when screwing the screws, one end may be screwed on and the other end may be pre-fixed and then loosened again due to the influence of stress. Therefore, a connection structure for circulating pipes is designed to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the problem, the present application provides a connection structure for a circulation pipeline.

[0005] The present application provides a connection structure for a circulation pipeline using the following technical solutions:

[0006] A connection structure for a circulation pipeline comprises a No. 1 connecting pipe and a No. 2 connecting pipe, wherein the No. 1 connecting pipe and the No. 2 connecting pipe are fixedly connected to flanges on the sides close to each other, and the flange on the No. 1 connecting pipe is equidistantly rotatably connected to a plurality of threaded rods on the side away from the No. 2 connecting pipe, wherein the threaded rods are threadedly connected to a moving block, and the moving block is fixedly connected to a limiting plate on the side close to the No. 2 connecting pipe, and a fixing groove is provided on the limiting plate at one end close to the center of the No. 2 connecting pipe, and an elastic sheet is fixedly connected in the fixing groove, and the elastic sheet is fixedly connected to the limiting block on the side away from the fixing groove.

[0007] Preferably, the limiting block is trapezoidal, and the limiting block is slidably connected to the fixing groove.

[0008] Preferably, the threaded rod is fixedly connected to a gear on a side away from the flange, and the gear is engaged with a gear ring.

[0009] Preferably, one side of the gear ring is fixedly connected to a plurality of fixing plates, and the fixing plates are fixedly connected to a rotating ring on a side away from the gear ring.

[0010] Preferably, the rotating ring is rotatably connected to the fixed ring, and the inner wall of the fixed ring is fixedly connected to the No. 1 connecting pipe.

[0011] Preferably, a plurality of handles are fixedly connected to the outer side wall of the rotating ring at equal intervals, and the handles are provided with anti-slip grooves.

[0012] Preferably, the lower end of the moving block is fixedly connected to the sliding rod, the lower end of the sliding rod is slidably connected to the slide plate, and the side of the slide plate away from the sliding rod is fixedly connected to the side wall of the No. 1 connecting pipe.

[0013] In summary, this application has the following beneficial technical effects:

[0014] In the present invention, a plurality of threaded rods installed on the No. 1 connecting pipe drive the moving block to move, so that the moving block drives the limit plate and the limit block to move, thereby limiting the flange of the No. 2 connecting pipe, and the limit block supports the flange end face of the No. 2 connecting pipe, offsetting the stress generated when the No. 1 connecting pipe and the No. 2 connecting pipe are connected, making it more convenient for the staff to tighten the bolts. After fixing, the limit block also limits the flange, plays a role in auxiliary connection, and makes the connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the main body of the application embodiment;

[0016] Figure 2 This is a schematic structural diagram of the No. 1 connecting pipe of the embodiment of the application;

[0017] Figure 3 Schematic diagram of the structure of the gear ring, gear and rotating ring of the embodiment of the application;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the limiting plate of the application embodiment.

[0019] Explanation of the accompanying symbols: 1. Connecting pipe No. 1; 2. Connecting pipe No. 2; 3. Flange; 4. Threaded rod; 5. Moving block; 51. Sliding rod; 52. Slide plate; 6. Limiting plate; 7. Elastic sheet; 8. Limiting block; 9. Gear; 10. Gear ring; 11. Fixed plate; 12. Swivel; 13. Fixed ring; 14. Handle. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The embodiment of the present application discloses a connection structure for a circulation pipeline. Figure 1-4 A connection structure for a circulation pipeline includes a No. 1 connecting pipe 1 and a No. 2 connecting pipe 2. The No. 1 connecting pipe 1 and the No. 2 connecting pipe 2 are fixedly connected to a flange 3 on one side close to each other. Figure 1As shown;

[0022] The flange 3 on the No. 1 connecting pipe 1 is equidistantly connected to a number of threaded rods 4 by rotating on the side away from the No. 2 connecting pipe 2. The threaded rods 4 are threadedly connected to a moving block 5. The moving block 5 is fixedly connected to a limit plate 6 on the side close to the No. 2 connecting pipe 2. The limit plate 6 has a fixed groove at one end close to the center of the No. 2 connecting pipe 2, and an elastic sheet 7 is fixedly connected in the fixed groove. The elastic sheet 7 is fixedly connected to a limit block 8 on the side away from the fixed groove. The threaded rods 4 are used to drive the moving block 5 to move, and the moving block 5 drives the limit plate 6 to move, so that the limit plate 6 drives the limit block 8 on one side to move, so that the limit block 8 gradually approaches the flange 3 of the No. 2 connecting pipe 2 until one end face of the limit block 8 contacts the side face of the flange 3 and clamps the flange 3 so that the end faces of the two flanges 3 fit together. The limit block 8 limits the flange 3 to offset the stress generated by the close connection between the two.

[0023] The limiting block 8 is trapezoidal, and the limiting block 8 is slidably connected to the fixing groove. Figure 4 As shown, when the flange 3 moves, it will contact the inclined surface of the limiting block 8 and squeeze the limiting block 8 to move into the fixing groove, so that the flange 3 can pass through.

[0024] By adopting the above technical solution, the threaded rod 4 is fixedly connected to the gear 9 on the side away from the flange 3. The gear 9 engages the gear ring 10. The gear ring 10 is fixedly connected to a plurality of fixed plates 11 on one side. The fixed plates 11 are fixedly connected to the swivel 12 on the side away from the gear ring 10. The swivel 12 can be rotated, so that the swivel 12 drives the fixed plates 11 to move. The fixed plates 11 drive the gear ring 10 to rotate. The gear ring 10 drives the gear 9 to rotate, so that the gear 9 drives the threaded rod 4 to rotate, and the threaded rod 4 drives the moving block 5 to move.

[0025] By adopting the above technical solution, the rotating ring 12 is connected to the fixed ring 13, and the inner wall of the fixed ring 13 is fixedly connected to the No. 1 connecting pipe 1. The fixed ring 13 is used to fix the rotating ring 12 so that the rotating ring 12 can rotate stably. Several handles 14 are fixedly connected to the outer wall of the rotating ring 12 at equal distances. The handles 14 are provided with anti-slip grooves to facilitate the rotation of the rotating ring 12.

[0026] By adopting the above technical solution, the lower end of the moving block 5 is fixedly connected to the slide rod 51, the lower end of the slide rod 51 is slidably connected to the slide plate 52, and the slide plate 52 is fixedly connected to the side wall of the No. 1 connecting tube 1 away from the slide rod 51, which is used to limit the moving block 5 so that the moving block 5 can only move horizontally.

[0027] The implementation principle of the connection structure for a circulation pipeline in the embodiment of the present application is as follows: align the flange 3 of the second connecting pipe 2 to be connected with the first connecting pipe 1, and then move the flange 3 to make the two flanges 3 fit together. During the movement of the flange 3, it will push the limit blocks 8 on one side of the multiple limit plates 6, so that the limit blocks 8 are squeezed and enter the fixed groove and squeeze the elastic sheet 7 to shrink, so that the flange 3 can pass through the limit blocks 8. After passing through, the elastic sheet 7 will push the limit blocks 8 to move, so that the limit blocks 8 are exposed from the fixed groove. Then, hold the handle 14 and pull the handle 14 so that the handle 14 drives the swivel 12 to rotate, and the swivel 12 drives the fixed The plate 11 moves, the fixed plate 11 drives the gear ring 10 to rotate, the gear ring 10 drives the gear 9 to rotate, so that the gear 9 drives the threaded rod 4 to rotate, the threaded rod 4 drives the moving block 5 to move, the moving block 5 drives the limiting plate 6 to move, so that the limiting plate 6 drives the limiting block 8 on one side to move, so that the limiting block 8 gradually approaches the flange 3 of the second connecting pipe 2, until one end face of the limiting block 8 contacts the side of the flange 3, and clamps the flange 3 so that the two end faces of the flange 3 fit each other, the limiting block 8 limits the flange 3, offsets the stress generated by the close connection between the two, and then screws the bolts to connect the two flanges 3, thereby completing the fixation. After fixation, the limiting block 8 also limits the flange 3, plays the role of auxiliary connection, and makes the connection more stable.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0029] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A connection structure for a circulation pipeline, comprising a No. 1 connecting pipe (1) and a No. 2 connecting pipe (2), wherein the No. 1 connecting pipe (1) and the No. 2 connecting pipe (2) are fixedly connected to a flange (3) on one side close to each other, characterized in that: The flange (3) on the No. 1 connecting pipe (1) is equidistantly connected to a plurality of threaded rods (4) by rotation at a side away from the No. 2 connecting pipe (2). The threaded rods (4) are threadedly connected to a moving block (5). The moving block (5) is fixedly connected to a limiting plate (6) on a side close to the No. 2 connecting pipe (2). A fixing groove is provided at one end of the limiting plate (6) close to the center of the No. 2 connecting pipe (2), and an elastic sheet (7) is fixedly connected in the fixing groove. The elastic sheet (7) is fixedly connected to a limiting block (8) on a side away from the fixing groove.

2. A connection structure for a circulation pipeline according to claim 1, characterized in that: The limiting block (8) is trapezoidal in shape, and the limiting block (8) is slidably connected to the fixing groove.

3. The connection structure for a circulation pipeline according to claim 1, characterized in that: The threaded rod (4) is fixedly connected to a gear (9) on a side away from the flange (3), and the gear (9) is engaged with a gear ring (10).

4. A connection structure for a circulation pipeline according to claim 3, characterized in that: One side of the gear ring (10) is fixedly connected to a plurality of fixed plates (11), and the side of the fixed plates (11) away from the gear ring (10) is fixedly connected to a rotating ring (12).

5. The connection structure for a circulation pipeline according to claim 4, characterized in that: The rotating ring (12) is rotatably connected to the fixed ring (13), and the inner wall of the fixed ring (13) is fixedly connected to the No. 1 connecting pipe (1).

6. The connection structure for a circulation pipeline according to claim 4, characterized in that: A plurality of handles (14) are fixedly connected to the outer side wall of the rotating ring (12) at equal intervals, and the handles (14) are provided with anti-slip grooves.

7. The connection structure for a circulation pipeline according to claim 1, characterized in that: The lower end of the moving block (5) is fixedly connected to the sliding rod (51), and the lower end of the sliding rod (51) is slidably connected to the sliding plate (52). The side of the sliding plate (52) away from the sliding rod (51) is fixedly connected to the side wall of the No. 1 connecting pipe (1).

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