Three-way pneumatic connector

Abstract

The utility model discloses a three-way pneumatic joint, which relates to the technical field of three-way pneumatic joints and comprises a three-way pneumatic joint body and an external thread layer, a first mounting end is fixed on the external surface of the three-way pneumatic joint body, the external thread layer is positioned on the external surface of the first mounting end, a fastening nut is mounted on one side of the first mounting end, and the fastening nut is positioned on the external surface of the first mounting end. A sealing rubber ring is installed on one side of the fastening nut, a soft connecting end is installed on one side of the sealing rubber ring, a hard connecting piece is fixed to the end of one side of the soft connecting end, a second mounting end is fixed to the end of one side of the hard connecting piece, and a rotating shaft seat is fixed to the side, close to the outer thread layer, of the first mounting end. And the inner side of the rotating shaft seat is rotationally connected with a limiting plate, and a through hole is formed in the surface of the limiting plate. According to the three-way pneumatic connector, the use flexibility of the three-way pneumatic connector body can be improved through the arrangement of the first mounting end, the external thread layer, the fastening nut, the soft connecting end, the hard connecting piece and the second mounting end.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way pneumatic joints, in particular to a three-way pneumatic joint. Background Art

[0002] Pneumatic pipe joints are pipe connectors that are often used in automated mechanical equipment. Due to the complexity of the pipeline, various types of pipe joints, air flow valves, etc. are required, including three-way pipe joints and three-way pneumatic joints.

[0003] For example, the utility model with application number CN202122249594.8 discloses a T-type three-way pneumatic joint, which fixes the mounting part and the three-way joint together through the cooperation of the first connecting block and the second connecting block to prevent the connection from falling off. However, during the use of the three-way pneumatic joint, since the sizes of the pipes to be connected are inconsistent, it is necessary to increase the cost to purchase three-way pneumatic joints of different models for practical use, so the adaptability of the three-way pneumatic joint is poor. At the same time, it is not easy for the three-way pneumatic joint to limit and fix the nut at the connection, because after long-term use, the nut will become loose to a certain extent, which will cause the overall sealing of the three-way pneumatic joint to be reduced.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a three-way pneumatic joint is proposed. Utility Model Content

[0005] The utility model aims to provide a three-way pneumatic joint to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-way pneumatic joint, comprising a three-way pneumatic joint body and an external threaded layer, a mounting end one is fixed on the external surface of the three-way pneumatic joint body, the external threaded layer is located on the external surface of the mounting end one, a fastening nut is installed on one side of the mounting end one, and a sealing rubber ring is installed on one side of the fastening nut, a soft connecting end is installed on one side of the sealing rubber ring, and a hard connecting piece is fixed on one end of the soft connecting end, a mounting end two is fixed on one end of the hard connecting piece, a rotating shaft seat is fixed on one side of the mounting end one close to the external threaded layer, and a limiting plate is rotatably connected to the inner side of the rotating shaft seat, a through hole is opened on the surface of the limiting plate, a recessed groove is opened on the external surface of the fastening nut, and a protruding column is fixed inside the recessed groove.

[0007] Furthermore, the three-way pneumatic joint body, the first mounting end and the external thread layer are an integrated structure, and the first mounting end is provided with three groups.

[0008] Furthermore, the through hole and the protruding column are connected by mortise and tenon, and the protruding column is symmetrically distributed about the vertical center axis of the recessed groove.

[0009] Furthermore, a fixed bottom plate is fixed to the outer surface of the limiting plate, and a fixed seat is fixed to the outer surface of the fixed bottom plate.

[0010] Furthermore, an insertion groove is provided on the surface of the fixing seat, and a connecting rod is slidably connected inside the insertion groove.

[0011] Furthermore, an anti-collision plate is fixed to the top end of the connecting rod, and a buffer spring is installed on the fixing seat near the outside of the connecting rod.

[0012] Furthermore, a buffer cavity is installed between the anti-collision plate and the fixing seat, and the connecting rods are distributed at equal distances with respect to the interior of the buffer cavity.

[0013] The utility model provides a three-way pneumatic joint, which has the following beneficial effects:

[0014] 1. The utility model can utilize the threaded connection of the fastening nut and the external threaded layer through the arrangement of the mounting end one, the external threaded layer, the fastening nut, the flexible connection end, the rigid connection piece and the mounting end two, so that the mounting end two with the rigid connection piece can be assembled with the mounting end one. Since the mounting end one and the mounting end two have different diameters, this assembly method can be used to allow a three-way pneumatic joint body to be adapted to pipes of different diameters, thereby improving the flexibility of the use of the three-way pneumatic joint body as a whole. At the same time, under the action of the sealing rubber ring, the sealing performance of the assembled three-way pneumatic joint body can be improved. The installation of the rotating shaft seat, the limit plate, the through hole, the recessed groove and the protruding column can utilize the mortise and tenon connection of the through hole and the protruding column, so that the limit plate can limit the position of the fastening nut, thereby avoiding the phenomenon of loosening after long-term use, thereby further improving the sealing performance of the three-way pneumatic joint body.

[0015] 2. The utility model can utilize the elasticity of the buffer spring itself to buffer the force applied to the anti-collision plate through the arrangement of the anti-collision plate, the buffer cavity, the connecting rod, the buffer spring, the fixing seat and the insertion groove, thereby protecting the three-way pneumatic joint body and preventing the external force from directly contacting it, thereby causing damage to the three-way pneumatic joint body and affecting its overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a three-way pneumatic joint of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the installation end of a three-way pneumatic joint of the utility model;

[0018] Figure 3 This is a schematic diagram of the fastening nut structure of a three-way pneumatic joint of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of a buffer chamber of a three-way pneumatic joint of the utility model;

[0020] Figure 5 The utility model is a schematic diagram of a partial three-dimensional structure of a separation vertical plate of a three-way pneumatic joint.

[0021] In the figure: 1. three-way pneumatic joint body; 2. mounting end one; 3. external thread layer; 4. fastening nut; 5. sealing rubber ring; 6. flexible connection end; 7. hard connection piece; 8. mounting end two; 9. rotating shaft seat; 10. limit plate; 11. through hole; 12. recessed groove; 13. protruding column; 14. fixed bottom plate; 15. anti-collision plate; 16. buffer cavity; 17. connecting rod; 18. buffer spring; 19. fixed seat; 20. insertion groove. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a three-way pneumatic joint comprises a three-way pneumatic joint body 1 and an external thread layer 3, a mounting end 2 is fixed on the external surface of the three-way pneumatic joint body 1, the external thread layer 3 is located on the external surface of the mounting end 2, a fastening nut 4 is installed on one side of the mounting end 2, and a sealing rubber ring 5 is installed on one side of the fastening nut 4, a soft connection end 6 is installed on one side of the sealing rubber ring 5, and a hard connection piece 7 is fixed on one end of the soft connection end 6, and a mounting end 2 8 is fixed on one end of the hard connection piece 7, the three-way pneumatic joint body 1, the mounting end 2 and the external thread layer 3 are an integrated structure, and the mounting end 2 is provided with three groups, the mounting end 2, the external thread layer 3, the fastening nut 4, The arrangement of the flexible connection end 6, the rigid connection part 7 and the second installation end 8 can improve the flexibility of the use of the three-way pneumatic joint body 1. A rotating shaft seat 9 is fixed on the side of the installation end 2 close to the external thread layer 3, and the inner side of the rotating shaft seat 9 is rotatably connected with a limiting plate 10. A through hole 11 is provided on the surface of the limiting plate 10, and a recessed groove 12 is provided on the outer surface of the fastening nut 4, and a protruding column 13 is fixed inside the recessed groove 12. The through hole 11 and the protruding column 13 are mortise-and-tenon connected, and the protruding column 13 is symmetrically distributed about the vertical center axis of the recessed groove 12. The installation of the rotating shaft seat 9, the limiting plate 10, the through hole 11, the recessed groove 12 and the protruding column 13 can limit the position of the fastening nut 4.

[0024] like Figure 3 and Figure 5As shown, a fixed base plate 14 is fixed to the outer surface of the limit plate 10, and a fixed seat 19 is fixed to the outer surface of the fixed base plate 14, an insertion groove 20 is opened on the surface of the fixed seat 19, and a connecting rod 17 is slidably connected inside the insertion groove 20, and an anti-collision plate 15 is fixed to the top of the connecting rod 17, and a buffer spring 18 is installed on the fixed seat 19 near the outside of the connecting rod 17, a buffer cavity 16 is installed between the anti-collision plate 15 and the fixed seat 19, and the connecting rod 17 is equidistantly distributed with respect to the inside of the buffer cavity 16, and the arrangement of the anti-collision plate 15, the buffer cavity 16, the connecting rod 17, the buffer spring 18, the fixed seat 19 and the insertion groove 20 can provide external protection for the three-way pneumatic joint body 1.

[0025] In summary, the three-way pneumatic joint is first based on Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 When the two are in contact, the fastening nut 4 can be rotated clockwise to make it threadedly connected with the external thread layer 3 on the mounting end 2, so that the mounting end 2 8 and the mounting end 2 of the three-way pneumatic joint body 1 can be assembled together. At this time, the sealing rubber ring 5 will also increase the sealing of the connection between the mounting end 2 8 and the mounting end 2, and then people can rotate the limiting plate 10 connected to it by rotating the shaft seat 9 so that it can be stuck in the recessed groove 12 on the fastening nut 4. At this time, the through hole 11 on the limiting plate 10 will also be mortise-jointed with the protruding column 13 in the recessed groove 12. In this way, the position of the tightening nut 4 can be limited so that it will not loosen. Finally, the mounting end 8 on the assembled three-way pneumatic joint body 1 can be connected to the corresponding pipeline. Since the limiting plate 10 is designed with four groups, when all of them are connected with the fastening nut 4, the arc-shaped anti-collision plate 15 connected to the limiting plate 10 through the fixed bottom plate 14 will form a certain complete circle, covering the outside of the fastening nut 4. In this way, when the three-way pneumatic joint body 1 is hit by the outside, the force it receives will contact the anti-collision plate 15 for the first time. At this time, due to its pressure, it will drive the connecting rod 17 hidden in the buffer cavity 16 and connected to the anti-collision plate 15 to change its position downward in the insertion groove 20 on the fixed seat 19, which will squeeze the buffer spring 18 outside the connecting rod 17, causing it to shrink and deform, thereby buffering the force received by the anti-collision plate 15, so as to achieve the protection effect on the three-way pneumatic joint body 1.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A three-way pneumatic joint, comprising a three-way pneumatic joint body (1) and an external thread layer (3), characterized in that: The outer surface of the three-way pneumatic joint body (1) is fixed with a mounting end (2), the outer thread layer (3) is located on the outer surface of the mounting end (2), a fastening nut (4) is installed on one side of the mounting end (2), and a sealing rubber ring (5) is installed on one side of the fastening nut (4), a flexible connection end (6) is installed on one side of the sealing rubber ring (5), and a hard connection piece (7) is fixed to one end of the flexible connection end (6), and a mounting end (8) is fixed to one end of the hard connection piece (7), a rotating shaft seat (9) is fixed on the side of the mounting end (2) close to the outer thread layer (3), and a limiting plate (10) is rotatably connected to the inner side of the rotating shaft seat (9), and a through hole (11) is provided on the surface of the limiting plate (10), and a recessed groove (12) is provided on the outer surface of the fastening nut (4), and a protruding column (13) is fixed inside the recessed groove (12).

2. A three-way pneumatic joint according to claim 1, characterized in that: The three-way pneumatic joint body (1), the first mounting end (2) and the external thread layer (3) are an integrated structure, and the first mounting end (2) is provided with three groups.

3. A three-way pneumatic joint according to claim 1, characterized in that: The through hole (11) and the protruding column (13) are connected by mortise and tenon joints, and the protruding columns (13) are symmetrically distributed about the vertical center axis of the recessed groove (12).

4. A three-way pneumatic joint according to claim 1, characterized in that: A fixed base plate (14) is fixed to the outer surface of the limiting plate (10), and a fixed seat (19) is fixed to the outer surface of the fixed base plate (14).

5. A three-way pneumatic joint according to claim 4, characterized in that: An insertion groove (20) is provided on the surface of the fixing seat (19), and a connecting rod (17) is slidably connected inside the insertion groove (20).

6. A three-way pneumatic joint according to claim 5, characterized in that: An anti-collision plate (15) is fixed to the top end of the connecting rod (17), and a buffer spring (18) is installed on the fixing seat (19) near the outside of the connecting rod (17).

7. A three-way pneumatic joint according to claim 6, characterized in that: A buffer cavity (16) is installed between the anti-collision plate (15) and the fixing seat (19), and the connecting rods (17) are distributed at equal distances with respect to the interior of the buffer cavity (16).

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