Rotary joint convenient to connect

Abstract

The utility model relates to the field of rotary joints, and discloses a rotary joint convenient to connect, which comprises a pipeline main body, a flange plate b is fixedly connected to the outer wall of the pipeline main body, an external pipeline is detachably connected to the inner wall of the pipeline main body, a bearing is arranged on the inner wall of the external pipeline, and an internal pipeline is fixedly connected to the inner wall of the bearing. A flange plate a is fixedly connected to the outer wall of the outer pipeline, a buckle assembly is elastically connected to the inner wall of the outer pipeline through a reset spring a, the buckle assembly comprises a clamping block, a clamping groove is formed in the inner wall of the pipeline body, a pressing plate is slidably connected to the inner wall of the pipeline body, and a protective sleeve is detachably connected to the outer wall of the inner pipeline. According to the utility model, the joints can be inserted into the pipeline, are automatically calibrated and then are fixed by screws and nuts, manual hand-held calibration is not needed, and the working efficiency is greatly improved when a plurality of groups of joints are mounted at the same time.

Description

Technical Field

[0001] The utility model relates to the field of rotary joints, in particular to a rotary joint which is easy to connect. Background Art

[0002] A swivel joint is a device used to connect pipes, usually for angle adjustment or direction change in a piping system. They are usually made of metal materials, have the characteristics of high pressure resistance and corrosion resistance, and are suitable for piping systems in various industrial fields.

[0003] The main function of the swivel joint is to allow the pipe to rotate within a certain range in the pipeline system to adapt to different angles or directions that may exist in the pipeline system. This design can reduce stress and distortion in the pipeline system, extend the service life of the pipeline, and reduce maintenance and repair costs.

[0004] The interior of the rotary joint usually contains a bearing structure that can support and withstand rotational motion. These bearings can reduce friction, allowing the rotary joint to rotate smoothly. It is often fixed with screws and nuts, and during the fixing process, the joint needs to be calibrated manually, which is time-consuming. Especially when multiple sets of joints need to be installed, it is not possible to use screws and nuts for installation after unified calibration. In addition, when the connector is not used for a long time, dust and moisture may enter and cause corrosion to the inner wall. Therefore, a rotary joint that is easy to connect is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a swivel joint that is easy to connect, aiming to improve the problem in the prior art that manual calibration is required during the connection process and dust and moisture enter the interior to corrode when not in use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rotary joint that is easy to connect, comprising a pipe body, the outer wall of the pipe body is fixedly connected to a flange b, the inner wall of the pipe body is detachably connected to an external pipe, the inner wall of the external pipe is provided with a bearing, the inner wall of the bearing is fixedly connected to the internal pipe, the outer wall of the external pipe is fixedly connected to a flange a, the inner wall of the external pipe is elastically connected to a snap assembly via a reset spring a, the snap assembly comprises a snap block, the inner wall of the pipe body is provided with a snap groove, and the inner wall of the pipe body is slidably connected to a pressing plate.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the inner pipe is detachably connected with a protective sleeve, the inner wall of the protective sleeve is elastically connected to a limiting bead via a return spring b, and a limiting groove is provided on the outer wall of the inner pipe.

[0009] As a further description of the above technical solution:

[0010] The outer wall of flange a is in contact with the outer wall of flange b.

[0011] As a further description of the above technical solution:

[0012] One end of the return spring a is fixedly connected to the back side of the clamping block, and the other end of the return spring a is fixedly connected to the inner wall of the external pipe.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the clamping slot is clamped with the outer wall of the clamping block.

[0015] As a further description of the above technical solution:

[0016] One inner end of the pressing plate contacts the outer wall of the clamping block.

[0017] As a further description of the above technical solution:

[0018] One end of the return spring b is fixedly connected to the inner wall of the protective sleeve, and the other end of the return spring b is fixedly connected to the back side of the limiting bead.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the limiting bead is clamped with the inner wall of the limiting groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a card block, when connection is required, the external pipe is aligned with the inner wall of the pipe body and inserted, and the card block is then inserted into the card slot and fixed, and screws and nuts can be used for installation. When multiple sets of joints need to be installed, the screws and nuts can be installed after unified calibration, which greatly improves work efficiency.

[0023] 2. In the utility model, by providing a protective sleeve, when the joint is removed and not in use, the protective sleeve can be put on the internal pipe, and the limiting bead slides into the limiting groove to be fixed, thereby fixing the protective sleeve on the internal pipe to prevent moisture and dust from entering and corroding the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall front view of a rotary joint that is easy to connect proposed by the utility model;

[0025] Figure 2 This is a front view schematic diagram of an external pipe of a rotary joint that is easy to connect proposed by the utility model;

[0026] Figure 3The utility model is a schematic cross-sectional view of a protective sleeve of a rotary joint which is easy to connect.

[0027] Legend:

[0028] 1. External pipeline; 2. Bearing; 3. Internal pipeline; 4. Protective sleeve; 5. Flange a; 6. Flange b; 7. Pipe body; 8. Limiting bead; 9. Limiting groove; 10. Reset spring a; 11. Block; 12. Slot; 13. Pressing plate; 14. Reset spring b. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 2 The utility model provides an embodiment: a rotary joint that is easy to connect, including a pipe body 7, characterized in that: the outer wall of the pipe body 7 is fixedly connected with a flange b6, the inner wall of the pipe body 7 is detachably connected with an external pipe 1, the inner wall of the external pipe 1 is provided with a bearing 2, the inner wall of the bearing 2 is fixedly connected with an internal pipe 3, and the internal pipe 3 can be rotated in the external pipe 1 through the bearing 2, the outer wall of the external pipe 1 is fixedly connected with a flange a5, the outer wall of the flange a5 contacts the outer wall of the flange b6, and the two sets of flanges are fixed together by screws and nuts, thereby completing the connection of the rotary joint, the inner wall of the external pipe 1 is elastically connected with a snap assembly through a return spring a10, the snap assembly includes a clamping block 11, one end of the return spring a10 is fixedly connected to the back of the clamping block 11, and the other end of the return spring a10 is fixedly connected to the back of the clamping block 11. One end is fixedly connected to the inner wall of the external pipe 1, and the surface of the block 11 is set as an inclined surface. In the process of the external pipe 1 sliding into the interior of the pipe body 7, the inclined surface is squeezed by the inner wall of the pipe to compress the reset spring a10 to retract. At the same time, the elastic force generated by the deformation of the reset spring a10 gives the block 11 a thrust in the opposite direction, prompting it to reset. A card slot 12 is provided on the inner wall of the pipe body 7, and the inner wall of the card slot 12 is engaged with the outer wall of the card block 11. The card block 11 is inserted into the card slot 12. While the rotary joint is connected to the inner wall of the pipe body 7, the calibration of the two sets of flanges is automatically completed, and then the screws and nuts can be installed. A pressing plate 13 is slidably connected to the inner wall of the pipe body 7. The inner end of the pressing plate 13 contacts the outer wall of the card block 11. Pressing the pressing plate 13 inward can press the card block 11 out of the card slot 12 for use when dismantling the device.

[0031] Reference Figure 1 and Figure 3The outer wall of the internal pipe 3 is detachably connected with a protective sleeve 4, and the protective sleeve 4 covers the internal pipe 3 to prevent moisture and dust from entering and corroding the inner wall. The inner wall of the protective sleeve 4 is elastically connected to the limiting bead 8 through a reset spring b14, one end of the reset spring b14 is fixedly connected to the inner wall of the protective sleeve 4, and the other end of the reset spring b14 is fixedly connected to the back of the limiting bead 8. The slippery surface of the limiting bead 8 is squeezed by the outer wall of the internal pipe 3 to squeeze the reset spring b14 to retract. At the same time, the elastic force generated by the deformation of the reset spring b14 gives the limiting bead 8 a reverse thrust to reset it. A limiting groove 9 is provided on the outer wall of the internal pipe 3, and the outer wall of the limiting bead 8 is clamped with the inner wall of the limiting groove 9. The limiting bead 8 is clamped into the limiting groove 9 to fix the protective sleeve 4 on the internal pipe 3.

[0032] Working principle: When installing the rotary joint, align the external pipe 1 with the inner wall of the pipe body 7 and insert it. The inner wall of the pipe body 7 squeezes the inclined surface of the block 11 to squeeze the reset spring a10 and retract it. After it is fully inserted into the pipe body 7, it can be rotated and fine-tuned until the block 11 is stuck in the slot 12. At this time, the rotary joint is connected to the pipe body 7, and the two sets of flanges are aligned and automatically calibrated. At this time, the screws and nuts can be used to fix the rotary joint to the pipe body 7. When it needs to be removed, after removing the screws and nuts, press the pressing plate 13 inward to press the block 11 out of the slot 12, thereby separating the two. Afterwards, to prevent moisture and dust from entering the inside of the joint, put the protective cover 4 on the internal pipe 3, and the limit bead 8 slides into the limit slot 9 to fix it on the internal pipe 3.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A swivel joint that is easy to connect, comprising a pipe body (7), characterized in that: The outer wall of the pipe body (7) is fixedly connected to a flange plate b (6), the inner wall of the pipe body (7) is detachably connected to an external pipe (1), the inner wall of the external pipe (1) is provided with a bearing (2), the inner wall of the bearing (2) is fixedly connected to an internal pipe (3), the outer wall of the external pipe (1) is fixedly connected to a flange plate a (5), and the inner wall of the external pipe (1) is elastically connected to a buckle assembly via a return spring a (10); The buckle assembly comprises a clamping block (11), a clamping groove (12) is provided on the inner wall of the pipe body (7), and a pressing plate (13) is slidably connected to the inner wall of the pipe body (7).

2. A rotary joint that is easy to connect according to claim 1, characterized in that: The outer wall of the inner pipe (3) is detachably connected to a protective sleeve (4), the inner wall of the protective sleeve (4) is elastically connected to a limiting bead (8) via a return spring b (14), and a limiting groove (9) is provided on the outer wall of the inner pipe (3).

3. A rotary joint that is easy to connect according to claim 1, characterized in that: The outer wall of the flange a (5) is in contact with the outer wall of the flange b (6).

4. A rotary joint that is easy to connect according to claim 1, characterized in that: One end of the return spring a (10) is fixedly connected to the back side of the clamping block (11), and the other end of the return spring a (10) is fixedly connected to the inner wall of the external pipe (1).

5. The swivel joint for easy connection according to claim 1, characterized in that: The inner wall of the clamping groove (12) is clamped with the outer wall of the clamping block (11).

6. The swivel joint for easy connection according to claim 1, characterized in that: One inner end of the pressing plate (13) contacts the outer wall of the clamping block (11).

7. The swivel joint for easy connection according to claim 2, characterized in that: One end of the return spring b (14) is fixedly connected to the inner wall of the protective sleeve (4), and the other end of the return spring b (14) is fixedly connected to the back side of the limiting bead (8).

8. The swivel joint for easy connection according to claim 2, characterized in that: The outer wall of the limiting bead (8) is snap-fitted to the inner wall of the limiting groove (9).

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