Metal gas pipe joint structure

Abstract

The utility model relates to the technical field of gas pipe joints, in particular to a metal gas pipe joint structure which comprises two metal gas pipes, one end of one metal gas pipe is rotatably connected with a first connecting sleeve, one end of the other metal gas pipe is fixedly connected with a second connecting sleeve, and the first connecting sleeve and the second connecting sleeve are matched with each other. An elastic belt is detachably connected between the first connecting sleeve and the second connecting sleeve, internal threads are fixed to the inner side of the first connecting sleeve, external threads are formed in the outer side of the second connecting sleeve, the internal threads are in threaded engagement with the external threads, and the first connecting sleeve is rotationally connected to the outer side of the second connecting sleeve; a second annular notch is formed in one side of the first connecting sleeve, a first annular notch is formed in one side of the second connecting sleeve, and limiting columns are fixedly connected to one end of the first annular notch and one end of the second annular notch; according to the utility model, the joints are convenient to assemble and disassemble, have good sealing performance during butt joint, and are not easy to fall off and separate after being stressed.

Description

Technical Field

[0001] This utility model relates to the field of tracheal connector technology, specifically to a metal tracheal connector structure. Background Technology

[0002] Pneumatic fittings, also known as pneumatic connectors or pneumatic joints, are fundamental building blocks of pneumatic systems, enabling seamless airflow and connection. They provide safe and leak-free connections between pneumatic components such as pneumatic tubes, pipes, valves, and cylinders.

[0003] Metal air hoses are used in conjunction with corresponding pipe bodies. During the connection process, a connector structure is required to connect the metal air hose to the corresponding pipe body. The most common connection method is to use a flange. However, flange connection is not convenient and is relatively inconvenient to use.

[0004] Therefore, those skilled in the art have provided a metal pipe connector structure to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a metal pipe connector structure to solve the following technical problems:

[0006] How to improve the ease of connecting metal air pipes through connectors.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A metal air pipe connector structure includes two metal air pipes. One end of one metal air pipe is rotatably connected to a connecting sleeve 1, and one end of the other metal air pipe is fixedly connected to a connecting sleeve 2. The connecting sleeve 1 and the connecting sleeve 2 cooperate with each other, and an elastic band is detachably connected between the connecting sleeve 1 and the connecting sleeve 2.

[0009] The inner side of the first connecting sleeve is fixed with an internal thread, and the outer side of the second connecting sleeve is provided with an external thread. The internal thread and the external thread are engaged, and the first connecting sleeve is rotatably connected to the outer side of the second connecting sleeve.

[0010] One side of the connecting sleeve 1 has an annular recess 2, and one side of the connecting sleeve 2 has an annular recess 1. One end of both the annular recess 1 and the annular recess 2 is fixedly connected to a limiting post, and the limiting post is connected to the elastic band in cooperation.

[0011] Furthermore, a locking block is fixedly connected to the end of the metal air tube. The locking block is located inside the first connecting sleeve. A locking groove is opened on one side of the second connecting sleeve, and the locking groove and the locking block are connected to each other.

[0012] Furthermore, a sealing strip is fixedly connected to the inner side of the elastic band, and in the assembled state, the sealing strip is embedded between the first annular recess and the second annular recess.

[0013] Furthermore, the elastic band has multiple through holes, which penetrate the elastic band and the sealing strip. The limiting post cooperates with the through holes to limit the elastic band.

[0014] Furthermore, a sealing ring is fixedly connected to the inner side of the connecting sleeve, the sealing ring is arranged in a ring shape, and the inner side of the sealing ring is in contact with the locking block.

[0015] Furthermore, a limiting plate is connected to the rear side of the connecting sleeve, and the limiting plate is arranged in the shape of a circular plate.

[0016] Furthermore, the metal air pipe is fixedly connected to the rear side of the connecting sleeve two with a fixing sleeve.

[0017] The beneficial effects of this utility model are:

[0018] This utility model is provided with a first connecting sleeve, a second connecting sleeve, a limiting post, an elastic band, and a sealing strip. During assembly, the second connecting sleeve is rotated to fit over the outside of the first connecting sleeve, and the elastic band is wrapped around the outside of both the first and second connecting sleeves to complete the assembly. The sealing strip can seal the joint gaps to further prevent gas leakage. During disassembly, the elastic band wrapped around the outside is removed, and the second connecting sleeve is rotated to separate it from the first connecting sleeve to complete the disassembly. The installation and disassembly are convenient, and it has good sealing performance and will not easily fall off or separate. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional connection structure diagram of the present invention during assembly;

[0021] Figure 2 This is a schematic diagram of the three-dimensional connection structure when the present invention is disassembled. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the three-dimensional connection structure when the present invention is disassembled. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the internal connection structure when connecting sleeve one and connecting sleeve two of this utility model are connected.

[0024] Figure label:

[0025] 1. Metal air tube; 2. Connecting sleeve one; 3. Connecting sleeve two; 4. Elastic band; 5. Through hole; 6. Fixing sleeve; 7. Annular notch one; 8. Limiting post; 9. External thread; 10. Internal thread; 11. Annular notch two; 12. Locking block; 13. Limiting plate; 14. Locking groove; 15. Sealing ring; 16. Sealing strip. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see the appendix Figure 1-4 According to an embodiment of the present invention, a metal air pipe connector structure includes two metal air pipes 1. One end of one metal air pipe 1 is rotatably connected to a connecting sleeve 1 2, and one end of the other metal air pipe 1 is fixedly connected to a connecting sleeve 2 3. During assembly, the connecting sleeve 1 2 and the connecting sleeve 2 3 cooperate with each other. An elastic band 4 is detachably connected between the connecting sleeve 1 2 and the connecting sleeve 2 3. The elastic band 4 can enhance the connection between the connecting sleeve 1 2 and the connecting sleeve 2 3 and further prevent the connecting sleeve 1 2 and the connecting sleeve 2 3 from separating.

[0029] The inner side of the connecting sleeve 1 2 is fixed with an internal thread 10, and the outer side of the connecting sleeve 2 3 is provided with an external thread 9. The internal thread 10 and the external thread 9 are threadedly engaged. The connecting sleeve 1 2 is rotatably connected to the outer side of the connecting sleeve 2 3. The connecting sleeve 2 3 can be connected inside the connecting sleeve 1 2 under the mutual cooperation of the external thread 9 and the internal thread 10.

[0030] One side of the connecting sleeve 2 has an annular notch 11, and one side of the connecting sleeve 3 has an annular notch 7. One end of the annular notch 7 and the annular notch 11 are fixedly connected to a limiting post 8. The limiting post 8 and the elastic band 4 are connected to each other. When the internal thread 10 and the external thread 9 are fully engaged, the two limiting posts 8 are parallel to each other, which makes it easy to judge the tightness of the connection between the connecting sleeve 2 and the connecting sleeve 3. Then, the elastic band 4 is wrapped around the outside of the two limiting posts 8. The elastic band 4 can enhance the stability of the connection between the connecting sleeve 2 and the connecting sleeve 3 and prevent them from easily falling off and separating under force after assembly.

[0031] A metal gas tube 1 is fixedly connected to a locking block 12 at its end. The locking block 12 is located inside the connecting sleeve 2. A locking groove 14 is provided on one side of the connecting sleeve 3. The locking groove 14 and the locking block 12 are connected to each other. Both the locking groove 14 and the locking block 12 are trapezoidal conical in shape, which makes it easier for the locking groove 14 and the locking block 12 to mate with each other. During the mating process, after the trapezoidal conical locking block 12 is inserted into the locking groove 14, it will exert a certain radial compression on the inner wall of the locking groove 14. This compression can make the sealing ring 15 subject to more uniform pressure, thereby better filling the connection gap, improving the sealing performance, and effectively preventing gas leakage.

[0032] Example 2

[0033] Based on Example 1, please refer to the appendix. Figure 1-4 A sealing strip 16 is fixedly connected to the inner side of the elastic band 4. When assembled, the sealing strip 16 is embedded between the annular notch 11 and the annular notch 21, which can seal the connection gap between the connecting sleeve 12 and the connecting sleeve 23, further preventing gas from leaking through the connection gap.

[0034] The elastic band 4 has multiple through holes 5, which pass through the elastic band 4 and the sealing strip 16. The limiting post 8 cooperates with the through holes 5 to limit the elastic band 4. The cross section of the limiting post 8 is T-shaped. When connected, the two limiting posts 8 pass through the elastic band 4, and then the elastic band 4 is wrapped around the outside of the connecting sleeve 1 2 and the connecting sleeve 2 3. When the elastic band 4 is tightly connected to the outside of the connecting sleeve 1 2 and the connecting sleeve 2 3, the two limiting posts 8 can limit the elastic band 4.

[0035] A sealing ring 15 is fixedly connected to the inner side of the connecting sleeve 2. The sealing ring 15 is arranged in a ring shape, and the inner side of the sealing ring 15 fits against the locking block 12. After assembly, one end of the connecting sleeve 3 fits against the sealing ring 15. At this time, the sealing ring 15 can effectively reduce the connection gap between the connecting sleeve 2 and the connecting sleeve 3.

[0036] A metal air tube 1 is connected to a limiting plate 13 at the rear side of the connecting sleeve 2. The limiting plate 13 is circular. If the metal air tube 1 is a flexible metal air tube, the limiting plate 13 is fixedly connected to the metal air tube 1. At this time, the limiting plate 13 can limit the rear end of the connecting sleeve 2. If the metal air tube 1 is a rigid metal air tube, the limiting plate 13 is fixedly connected to the connecting sleeve 2. A fixing sleeve 6 is fixedly connected to the rear side of the connecting sleeve 3, which can increase the firmness of the connection between the connecting sleeve 3 and the metal air tube 1.

[0037] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A metal gas pipe joint structure comprising two metal gas pipes (1), characterized in that, One end of the metal trachea (1) is rotatably connected with a connecting sleeve one (2), and the other end of the metal trachea (1) is fixedly connected with a connecting sleeve two (3), the connecting sleeve one (2) and the connecting sleeve two (3) are matched with each other, and the connecting sleeve one (2) and the connecting sleeve two (3) are detachably connected with an elastic band (4); The inner side of the connecting sleeve one (2) is fixedly connected with an internal thread (10), the outer side of the connecting sleeve two (3) is provided with an external thread (9), the internal thread (10) is in threaded engagement with the external thread (9), and the connecting sleeve one (2) is rotatably connected to the outer side of the connecting sleeve two (3); The connecting sleeve one (2) is provided with an annular notch two (11) on one side, the connecting sleeve two (3) is provided with an annular notch one (7) on one side, the annular notch one (7) and the annular notch two (11) are both fixedly connected with a limiting column (8) at one end, and the limiting column (8) is connected with the elastic band (4) in a matched mode.

2. A metal tracheal connector structure according to claim 1, wherein: The end of the metal trachea (1) is fixedly connected with a clamping block (12), the clamping block (12) is located on the inner side of the connecting sleeve one (2), the connecting sleeve two (3) is provided with a clamping groove (14) on one side, and the clamping groove (14) is connected with the clamping block (12) in a matched mode.

3. A metal tracheal connector structure according to claim 1, wherein: The inner side of the elastic band (4) is fixedly connected with a sealing strip (16), and the sealing strip (16) is embedded between the annular notch one (7) and the annular notch two (11) in an assembled state.

4. A metal tracheal connector structure according to claim 1, wherein: The elastic band (4) is provided with a plurality of through holes (5), the through holes (5) penetrate the elastic band (4) and the sealing strip (16), and the limiting column (8) is matched with the through holes (5) and used for limiting the elastic band (4).

5. A metal tracheal connector structure according to claim 2, wherein: The inner side of the connecting sleeve one (2) is fixedly connected with a sealing ring (15), the sealing ring (15) is arranged in a ring shape, and the inner side of the sealing ring (15) is attached to the clamping block (12).

6. A metal tracheal connector structure according to claim 1, wherein: The metal trachea (1) is connected with a limiting plate (13) on the rear side of the connecting sleeve one (2), and the limiting plate (13) is arranged in a circular plate shape.

7. A metal tracheal connector structure according to claim 1, wherein: The metal trachea (1) is fixedly connected with a fixing sleeve (6) on the rear side of the connecting sleeve two (3).

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