Split type reducing joint

Abstract

The utility model discloses a split type reducing joint, which relates to the technical field of pipeline joints, solves the problems of low connection firmness and low sealing performance of an existing device, and adopts the following scheme that a reducing joint A and a reducing joint B are respectively provided with a connecting pipe A and a connecting pipe B which are matched with each other in specification. Through the arrangement of the internal thread, the locking thread and the locking nut, the reducing joint and the connecting pipe are connected through the internal thread, then the locking nut is rotated, and the locking nut is rotationally installed on the locking thread and the external thread, so that the connecting pipe and the reducing joint are limited and fixed, and the stability and firmness of installation and connection are improved; meanwhile, through the arrangement of the flanges and the sealing washers, the flange A and the flange B can improve the stability and the sealing performance of connection between the reducing joint A and the reducing joint B, the sealing washers can improve the sealing performance of connection between the reducing joint and the connecting pipe, the sealing performance is good, and the service life of the reducing joint is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline joint technical field, concretely is a split type reducing joint. BACKGROUND

[0002] Reducing joint is also called reducing pipe, commonly known as big head, one of chemical pipeline accessories, is used for the connection of two different pipe diameters, split type reducing joint is one of common reducing joints, the split type reducing joint on the market currently when connecting the pipeline, both ends are generally screwed, adopt this way connection, after connecting the one end of split type reducing joint, need to rotate the pipeline when connecting the other end of split type reducing joint, and the connection is more complicated.

[0003] Through the retrieval, patent announcement No. CN210950270U application, discloses a split type reducing joint, including first joint and second joint, the first joint one side is equipped with first external thread line, second joint one side is equipped with internal thread line, first joint and second joint are fixedly connected through first external thread line and internal thread line, the other side of second joint is fixedly connected with spring, one end of spring is fixedly connected with connecting plate, connecting plate is fixedly connected with clamping plate, one side of first joint is fixedly connected with first hexagonal turntable, this can improve the corrosion resistance and waterproofness of pipeline;

[0004] But because the setting of rotary connecting disc, through the rotary connecting disc connects the joint with the pipeline, the stability and firmness of connection are low, and the connection is prone to loosening after long time use, and through the setting of internal thread line and external thread line, internal thread line and external thread line connect two joints, and the sealing property of connection is low, and water leakage is prone to occur.

[0005] Therefore, we propose a split type reducing joint. SUMMARY

[0006] In view of the defects of prior art, the utility model provides a split type reducing joint, solves the problem of low firmness and low sealing property of the prior art.

[0007] In order to achieve the above purpose, the utility model realizes the following technical scheme: a split type reducing joint, including reducing joint A and reducing joint B;

[0008] The outer wall of the reducing joint A and the outer wall of the reducing joint B are respectively provided with internal threads and external threads, the inner end of the connecting pipe A and the inner end of the connecting pipe B are respectively fixedly provided with threaded pipes A and threaded pipes B with matched sizes, the outer wall of the connecting pipe A and the outer wall of the connecting pipe B are respectively provided with locking threads A and locking threads B with matched sizes, and the outer wall of the locking threads A and the outer wall of the locking threads B are respectively provided with locking nuts A and locking nuts B with matched sizes.

[0009] The inner end of the reducing joint A and the inner end of the reducing joint B are respectively fixedly provided with flanges A and flanges B with matched sizes, the outer wall of the flanges A and the outer wall of the flanges B are respectively provided with mounting holes A and mounting holes B, and the outer end of the reducing joint A and the outer end of the reducing joint B are respectively provided with sealing washers with matched sizes.

[0010] Preferably, the outer wall of the reducing joint A and the outer wall of the reducing joint B are hexagonal, so that the joint can be fixed by a wrench.

[0011] Preferably, the outer wall of the locking nut A and the outer wall of the locking nut B are hexagonal, so that the locking nut can be installed and dismounted by a wrench, improving convenience.

[0012] Preferably, the outer wall of the connecting pipe A is fixedly provided with positionally opposite limiting sleeves A, and the outer wall of the connecting pipe B is fixedly provided with positionally opposite limiting sleeves B, so that the locking nut can be limited.

[0013] Preferably, the outer diameter of the connecting pipe A is matched with the outer diameter of the reducing joint A, and the outer diameter of the connecting pipe B is matched with the outer diameter of the reducing joint B, so that the locking nut can connect and fix the connecting pipe and the reducing joint.

[0014] Preferably, the thread diameter of the internal threads and the thread diameter of the external threads are different, so that the stability and firmness of the connection can be improved.

[0015] The split-type reducing joint is connected with the connecting pipe through the internal threads, and then the locking nut is rotated to be installed on the locking threads and the external threads, so that the connecting pipe and the reducing joint are limited and fixed, improving the stability and firmness of the installation and connection.

[0016] Meanwhile, the flanges A and the flanges B can improve the stability and sealing property of the connection between the reducing joint A and the reducing joint B, and the sealing washers can improve the sealing property of the connection between the reducing joint and the connecting pipe, so that the service life is improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connecting pipe of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the locking nut of this utility model.

[0020] Figure 4 This is a schematic diagram of the flange structure of this utility model.

[0021] In the diagram: 1. Reducing fitting A; 2. Reducing fitting B; 3. Connecting pipe A; 4. Connecting pipe B; 5. Internal thread; 6. External thread; 7. Threaded pipe A; 8. Locking thread A; 9. Threaded pipe B; 10. Locking thread B; 11. Locking nut A; 12. Locking nut B; 13. Flange A; 14. Flange B; 15. Mounting hole A; 16. Mounting hole B; 17. Limiting sleeve A; 18. Limiting sleeve B. Detailed Implementation

[0022] 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.

[0023] Example 1:

[0024] like Figures 1-4 As shown: Reducing fittings A1 and B2 are respectively equipped with matching connecting pipes A3 and B4. Internal threads 5 and external threads 6 are respectively provided on the inner and outer walls of the outer ends of reducing fittings A1 and B2. Threaded pipes A7 and B9, respectively, are fixedly installed on the inner ends of connecting pipes A3 and B4. Locking threads A8 and B10, respectively, are respectively provided on the outer walls of connecting pipes A3 and B4. Locking nuts A11 and B12, respectively, are respectively installed on the outer walls of locking threads A8 and B10. Through the internal thread 5, locking threads, and locking nuts, the reducing fittings are first connected to the connecting pipes via the internal thread 5. Then, the locking nuts are rotated, and the locking nuts are rotated onto the locking threads and external threads 6, thereby limiting and fixing the connecting pipes and reducing fittings, improving the stability and firmness of the installation connection.

[0025] Example 2:

[0026] As Figures 2-4 shown: the inner end of the reducing joint A1 and the inner end of the reducing joint B2 are fixedly provided with flanges A13 and B14 with matched sizes, the outer wall of the flanges A13 and B14 is respectively provided with mounting holes A15 and B16, the outer end of the reducing joint A1 and the outer end of the reducing joint B2 are assembled with sealing gaskets with matched sizes, and the flanges A13 and B14 are assembled with sealing gaskets with matched sizes.

[0027] Example 3

[0028] As Figures 2-3 shown: the outer wall of the connecting pipe 3 is fixedly provided with positionally opposite limiting sleeves A17, and the outer wall of the connecting pipe B4 is fixedly provided with positionally opposite limiting sleeves B18, so that the locking nuts can be limited.

[0029] The working principle and use process of the utility model are as follows: when the device needs to work, the reducing joint is connected with the connecting pipe through the internal thread 5, then the locking nut is rotated, the locking nut is rotatably installed on the locking thread and the external thread 6, thereby limiting and fixing the connecting pipe and the reducing joint, improving the stability and firmness of installation and connection, meanwhile, the flanges A13 and B14 can improve the stability and sealing performance of the connection between the reducing joint A1 and the reducing joint B2, the sealing gaskets can improve the sealing performance of the connection between the reducing joint and the connecting pipe, the sealing performance is good, and the service life is improved.

[0030] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0031] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A split type reducing joint, comprising a reducing joint A (1) and a reducing joint B (2); characterized in that The reducing joint A (1) and the reducing joint B (2) are respectively provided with a connecting pipe A (3) and a connecting pipe B (4) with matched specifications, inner threads (5) and outer threads (6) are respectively formed on the inner wall and the outer wall of the outer end of the reducing joint A (1) and the reducing joint B (2), and the inner end of the connecting pipe A (3) and the connecting pipe B (4) is respectively fixedly provided with a threaded pipe A (7) and a threaded pipe B (9) with matched specifications, lock threads A (8) and lock threads B (10) with matched specifications are respectively formed on the outer wall of the connecting pipe A (3) and the connecting pipe B (4), and lock nuts A (11) and lock nuts B (12) with matched specifications are respectively assembled on the outer wall of the lock threads A (8) and the lock threads B (10). The inner end of the reducing joint A (1) and the reducing joint B (2) is respectively fixedly provided with a flange A (13) and a flange B (14) with matched specifications, mounting holes A (15) and mounting holes B (16) are respectively formed on the outer wall of the flange A (13) and the flange B (14), and sealing washers with matched specifications are assembled on the outer end of the reducing joint A (1) and the reducing joint B (2), and sealing washers with matched specifications are assembled between the flange A (13) and the flange B (14).

2. The split body reducing coupling according to claim 1, wherein: The outer wall of the reducing joint A (1) and the reducing joint B (2) is hexagonal.

3. The split body reducing coupling according to claim 1, wherein: The outer wall of the lock nut A (11) and the lock nut B (12) is hexagonal.

4. The split body reducing coupling according to claim 1, wherein: Positionally opposite limiting sleeves A (17) are fixedly installed on the outer wall of the connecting pipe A (3), and positionally opposite limiting sleeves B (18) are fixedly installed on the outer wall of the connecting pipe B (4).

5. The split body reducing coupling according to claim 1, wherein: The outer diameter of the connecting pipe A (3) is matched with the outer diameter of the reducing joint A (1), and the outer diameter of the connecting pipe B (4) is matched with the outer diameter of the reducing joint B (2).

6. The split body reducing coupling according to Claim 1, wherein: The thread diameter of the inner thread (5) and the outer thread (6) is different.

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