Three-way pipe with backflow prevention mechanism

Abstract

According to the technical scheme, the three-way pipe is characterized in that the three-way pipe comprises a first connecting sleeve, the first connecting sleeve is composed of a horizontal rectangular shell part and a vertical rectangular shell, and the two ends of the horizontal rectangular part of the first connecting sleeve are each provided with a first connecting pipe; a first fixing plate is fixedly mounted in the first connecting pipe, a sliding hole is formed in one side of the first fixing plate, a baffle is arranged on one side of the first fixing plate and is of a circular truncated cone structure, and a sliding rod is fixedly mounted on one side of the baffle; the baffle and the first fixing plate are connected together through the sliding holes and the sliding rods, a second connecting pipe is arranged in the first connecting pipe in a sleeved mode, by arranging the baffle and adopting the circular truncated cone design of the baffle, media can be pushed out more conveniently when flowing according to a specified track, the interior of the media can flow normally, and the service life of the media is prolonged. And on the other hand, the medium flowing in the opposite direction can be blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a three-way pipe with an anti-backflow mechanism. Background Art

[0002] A tee copper pipe is a pipe fitting supported by cast copper and used to change the direction of fluid. It is mainly used where the main pipeline is to branch out. The tee pipe is a chemical pipe fitting with three openings, namely one inlet and two outlets; or two inlets and one outlet. Its shapes include T-shaped and Y-shaped, with equal-diameter pipe openings and reducing-diameter pipe openings. The existing tee copper pipe includes a tee body, a first interface, a second interface and a third interface. The first interface, the second interface and the third interface are all fixedly connected to the tee body. The first, second and third interfaces are bonded to the quick connector on the water pipe through glue to achieve the effect of water flow.

[0003] The three-way connecting pipe with publication number CN219975767U has the following defects during use:

[0004] The utility model provides an anti-corrosion pipe sleeve, which can prevent the inner wall of the three-way connecting pipe from being eroded by the medium for a long time, and the connection structure of the anti-corrosion pipe sleeve can be connected and fixed to the inner wall of the three-way connecting pipe, and is not easy to fall off. The connection structure between the connection structure and the inner wall of the three-way connecting pipe is simple and easy to install and disassemble. However, in actual use, if the transportation path inside the device is not restricted, it can flow in any direction, and there may be safety hazards during backflow. At the same time, the actual efficiency of transportation will also be reduced. For this reason, we propose a three-way pipe with an anti-backflow mechanism. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a three-way pipe with an anti-backflow mechanism, which solves the problem that if the transportation path inside the device is not restricted during actual use, it can flow in any direction, which may cause safety hazards when backflowing, and the actual transportation efficiency will also be reduced.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A three-way pipe with an anti-backflow mechanism includes a first connecting sleeve, which is composed of a horizontal rectangular shell part and a vertical rectangular shell part. Both ends of the horizontal rectangular part of the first connecting sleeve have a first connecting pipe. A first fixing plate is fixedly installed inside the first connecting pipe. A sliding hole is opened on one side of the first fixing plate. A baffle is provided on one side of the first fixing plate. The baffle is a frustum-shaped structure. A sliding rod is fixedly installed on one side of the baffle. The baffle and the first fixing plate are connected together through the sliding hole and the sliding rod. A second connecting pipe is sleeved inside the first connecting pipe.

[0008] Preferably, a plurality of first fixing holes are formed on one side of the first fixing plate, and a first filter is fixedly installed inside the first fixing hole.

[0009] Preferably, a rubber pad is fixedly installed inside the first connecting pipe, a thread is provided inside the second connecting pipe, and the second connecting sleeve is connected to the inner thread of the second connecting pipe.

[0010] Preferably, the sliding rod is composed of a cylindrical portion and a disc-shaped portion, the outer wall of the cylindrical portion of the sliding rod is sleeved with a spring, and the spring passes through the disc-shaped portion of the sliding rod and the sliding hole.

[0011] Preferably, a placement groove is provided on the top surface of the first connecting sleeve, a through hole is provided on the inner bottom surface of the placement groove, a sliding plate is provided inside the through hole on the inner bottom surface of the placement groove, a second fixing hole is provided on one side of the sliding plate, and a second filter is fixedly installed inside the second fixing hole.

[0012] Preferably, second fixing plates are fixedly installed on both sides of the vertical portion of the first connecting sleeve, a threaded hole is provided on one side of the second fixing plate, and a bolt is threadedly connected inside the threaded hole provided on one side of the second fixing plate.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. By setting up the baffle, the frustum-shaped design of the baffle can make it easier to push out the medium when it flows along the specified trajectory, so that the internal flow is normal. On the other hand, since it can only move to one side, it will be blocked when the medium flows in the opposite direction, effectively avoiding the backflow when some dangerous media are transported;

[0015] 2. By setting up a second filter, the medium can be filtered for the second time at the discharge port. Through the sliding design of the sliding plate, the second filter can be pulled out of the outside of the first connecting sleeve at any time, which is convenient for centralized replacement and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the first fixed plate of the utility model;

[0019] Figure 4 It is a schematic structural diagram of the sliding plate of the utility model.

[0020] Figure numerals: 1. first connecting sleeve; 2. first connecting pipe; 3. first fixing plate; 4. sliding hole; 5. first fixing hole; 6. first filter screen; 7. baffle; 8. sliding rod; 9. second connecting pipe; 10. rubber pad; 11. second connecting sleeve; 12. spring; 13. placement groove; 14. sliding plate; 15. second fixing hole; 16. second filter screen; 17. second fixing plate; 18. bolt. DETAILED DESCRIPTION

[0021] 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.

[0022] refer to Figures 1-4 , a three-way pipe with an anti-backflow mechanism, including a first connecting sleeve 1, the first connecting sleeve 1 is composed of a horizontal rectangular shell part and a vertical rectangular shell part, and both ends of the horizontal rectangular part of the first connecting sleeve 1 are provided with a first connecting pipe 2, a first fixing plate 3 is fixedly installed inside the first connecting pipe 2, and a sliding hole 4 is opened on one side of the first fixing plate 3, and a baffle 7 is provided on one side of the first fixing plate 3. The baffle 7 is a frustum-shaped structure. The frustum-shaped design of the baffle 7 can make it easier to push out the medium when it flows according to the specified trajectory, so that the internal flow is normal. On the other hand, since it can only move to one side, when the medium flows in the opposite direction, it will be blocked, effectively avoiding the backflow generated when some dangerous media are transported. A sliding rod 8 is fixedly installed on one side of the baffle 7, and the baffle 7 and the first fixing plate 3 are connected together through the sliding hole 4 and the sliding rod 8. The interior of the first connecting pipe 2 is sleeved with a second connecting pipe 9;

[0023] A plurality of first fixing holes 5 are provided on one side of the first fixing plate 3, and a first filter screen 6 is fixedly installed inside the first fixing hole 5. Through the design of the first filter screen 6, the first filtration can be performed when the device is intaken, so as to ensure that the medium is not disturbed by larger debris as much as possible. A rubber pad 10 is fixedly installed inside the first connecting pipe 2. Through the design of the rubber pad 10, the connection position between the first connecting pipe 2 and the second connecting pipe 9 can be sealed to avoid air leakage and liquid leakage. The inside of the second connecting pipe 9 is provided with a thread, and the internal thread of the second connecting pipe 9 is connected to the second connecting sleeve 11. Through the design of the second connecting sleeve 11, the device can be quickly connected and installed with an external pipeline. The sliding rod 8 consists of a cylindrical part and a disc-shaped part. The outer wall surface of the cylindrical part of the sliding rod 8 is provided with a spring 12. The spring 12 is composed of the disc-shaped part of the sliding rod 8 and the sliding hole 4. Through the design of the spring 12, the position of the baffle 7 can be restricted so that it can be pressurized by the spring 12 after the medium transportation is completed and the force is canceled. The first connecting sleeve 1 is provided with a placement groove 13, and the inner bottom surface of the placement groove 13 is provided with a through hole. The through hole of the inner bottom surface of the placement groove 13 is provided with a sliding plate 14. A second fixing hole 15 is provided on one side of the sliding plate 14. A second filter screen 16 is fixedly installed inside the second fixing hole 15. Through the design of the second filter screen 16, the medium can be filtered for a second time at the discharge port. Through the sliding design of the sliding plate 14, the second filter screen 16 on it can be pulled out of the outside of the first connecting sleeve 1 at any time, which is convenient for centralized replacement and cleaning. Second fixing plates 17 are fixedly installed on both sides of the vertical part of the first connecting sleeve 1, and a threaded hole is provided on one side of the second fixing plate 17. The threaded hole opened on one side of the second fixing plate 17 is threadedly connected with a bolt 18. Through the design of the second fixing plate 17 and the bolt 18, the device body can be fixedly installed, so that the device can be installed between each pipeline in a fixed position to avoid the original stability of the device being affected by external force.

[0024] 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. A three-way pipe with an anti-backflow mechanism, comprising a first connecting sleeve (1), characterized in that: The first connecting sleeve (1) is composed of a horizontal rectangular shell part and a vertical rectangular shell part. Both ends of the horizontal rectangular part of the first connecting sleeve (1) have a first connecting tube (2). A first fixing plate (3) is fixedly installed inside the first connecting tube (2). A sliding hole (4) is opened on one side of the first fixing plate (3). A baffle (7) is provided on one side of the first fixing plate (3). The baffle (7) is a truncated cone structure. A sliding rod (8) is fixedly installed on one side of the baffle (7). The baffle (7) and the first fixing plate (3) are connected together through the sliding hole (4) and the sliding rod (8). A second connecting tube (9) is sleeved inside the first connecting tube (2).

2. The three-way pipe with an anti-backflow mechanism according to claim 1, characterized in that: A plurality of first fixing holes (5) are provided on one side of the first fixing plate (3), and a first filter screen (6) is fixedly installed inside the first fixing hole (5).

3. The three-way pipe with an anti-backflow mechanism according to claim 1, characterized in that: A rubber pad (10) is fixedly installed inside the first connecting pipe (2), a thread is provided inside the second connecting pipe (9), and a second connecting sleeve (11) is connected to the internal thread of the second connecting pipe (9).

4. The three-way pipe with an anti-backflow mechanism according to claim 1, characterized in that: The sliding rod (8) is composed of a cylindrical part and a disc-shaped part. The outer wall of the cylindrical part of the sliding rod (8) is sleeved with a spring (12). The spring (12) passes through the disc-shaped part of the sliding rod (8) and the sliding hole (4).

5. The three-way pipe with an anti-backflow mechanism according to claim 1, characterized in that: The top surface of the first connecting sleeve (1) is provided with a placement groove (13), the inner bottom surface of the placement groove (13) is provided with a through hole, a sliding plate (14) is sleeved inside the through hole of the inner bottom surface of the placement groove (13), a second fixing hole (15) is provided on one side of the sliding plate (14), and a second filter screen (16) is fixedly installed inside the second fixing hole (15).

6. The three-way pipe with an anti-backflow mechanism according to claim 1, characterized in that: Second fixing plates (17) are fixedly installed on both sides of the vertical portion of the first connecting sleeve (1), a threaded hole is provided on one side of the second fixing plate (17), and a bolt (18) is threadedly connected inside the threaded hole provided on one side of the second fixing plate (17).

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