Plug connector

Abstract

The utility model discloses a plugging connector, and the connector comprises a middle connecting sleeve, and the two ends of the middle connecting sleeve are fixedly connected with locking joints. The locking joint can be expanded to lock and fix the inserted pipeline; the sealing part is fixedly arranged at the position of the inner wall of the locking connector, and the sealing part can be used for conducting sealing treatment on the pipeline which is connected in an inserted mode; according to the pipeline connecting device, pipelines can be effectively connected and fixed in an inserted mode, the connecting operation is convenient, meanwhile, the pipelines of different sizes can be connected and fixed within a certain range, the problem that in the prior art, a common connector can only be connected with the pipelines of the fixed size is solved, and the practicability of the pipeline connecting device is improved. Two pipelines of different sizes can be connected, use is convenient and flexible, the sealing function is further introduced, auxiliary sealing treatment can be conducted on the connected pipelines, and the leakage phenomenon during liquid conveying is avoided.

Description

Technical Field

[0001] The present application relates to a plug connector. Background Art

[0002] Construction refers to the production activities during the implementation phase of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. During the construction process, various pipelines need to be connected. When connecting pipelines, corresponding connectors are required.

[0003] The existing patent document "CN217463637U A quick-type pipe connector" discloses a pipe connector. Although this pipe connector can connect and fix pipes, in the specific use process, the above connector can only fix pipes of a single size. When facing pipes of different sizes, it is difficult to effectively connect pipes of different sizes. When connecting pipes of different sizes, due to a certain tolerance between the pipes, the connection is prone to insufficient sealing.

[0004] That is, the prior art has the following technical problems: ordinary pipe connectors can only fix pipes of a single size, and the connection sealing is insufficient due to the tolerance between the pipes during connection. Therefore, a plug connector is proposed to address the above problem. Summary of the invention

[0005] In this embodiment, a plug connector is provided to solve the problem that ordinary pipe connectors in the prior art can only fix pipes of a single size and the connection sealing is insufficient due to the tolerance between the pipes during connection.

[0006] According to one aspect of the present application, a plug connector is provided, the plug connector comprising:

[0007] A middle connecting sleeve, both ends of which are fixedly connected with locking joints;

[0008] The locking joint can be expanded to lock and fix the plugged pipe;

[0009] A sealing component is fixedly arranged at the inner wall of the locking joint, and the sealing component can seal the plug-in connected pipe.

[0010] Furthermore, the locking joint includes a movable insert, a limiting ring, a rotating ring, a rotating sleeve, a connecting sleeve, a fixing ring and an expansion sleeve. The movable insert is fixedly connected to the middle connecting sleeve, and two limiting rings are fixedly provided on the arc-shaped wall of the movable insert.

[0011] Furthermore, a rotating ring is fixedly connected to the inner cavity wall of the rotating sleeve, and the rotating ring is arranged between the two limiting rings and is slidably matched with the limiting rings.

[0012] Furthermore, thread grooves are provided on the outer wall of the connecting sleeve and the inner wall of the rotating sleeve, the rotating sleeve and the connecting sleeve are threadedly connected, a fixing ring is fixedly connected to the inner cavity wall of the connecting sleeve, and an expansion sleeve is fixedly connected to the front end of the fixing ring.

[0013] Furthermore, the movable cannula extends to an inner position of the expansion sleeve.

[0014] Furthermore, a fixing convex ring is fixedly connected to the arc-shaped outer wall of the connecting sleeve, and knurling is provided on the outer surface of the fixing convex ring.

[0015] Furthermore, the sealing component is a rubber airbag, and the rubber airbag is fixedly arranged on the inner wall of the connecting sleeve.

[0016] Furthermore, the rubber airbag is an annular structure.

[0017] Furthermore, the rubber airbag is connected to the inflation part, and the inflation part includes a fixed sleeve, a movable piston, a movable rod and a ball. The fixed sleeve is fixedly arranged at the side wall of the fixed ring, and the movable piston is slidably connected in the inner cavity of the fixed sleeve. One end of the movable rod is fixedly connected to the side wall of the movable piston, and the other end of the movable rod passes through the inner cavity side wall of the fixed sleeve and extends outside the wall. One end of a connecting pipe is fixedly connected in the inner cavity of the fixed sleeve, and the other end of the connecting pipe extends into the inner cavity of the rubber airbag and is fixedly connected to the rubber airbag.

[0018] Furthermore, a ball is rotatably mounted at one end of the moving rod, and the ball is in contact with the rotating ring.

[0019] Through the above-mentioned embodiments of the present application, the pipeline can be effectively plugged in, connected and fixed, and the connection operation is relatively convenient. At the same time, within a certain range, the pipelines of different sizes can be connected and fixed, which solves the problem in the prior art that ordinary connectors can only be used to connect pipelines of fixed sizes. Two pipelines of different sizes can be connected, which is convenient and flexible to use. Further, a sealing function is introduced, and auxiliary sealing treatment can be performed on the connected pipelines to avoid leakage during liquid transportation. The use effect is good and suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 2 This is a right side structural schematic diagram of an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the internal structure of a locking joint according to an embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of an expansion sleeve according to an embodiment of the present application;

[0025] Figure 5 A schematic plan view of an expansion sleeve according to an embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the connection of the inflation part of an embodiment of the present application.

[0027] In the figure:

[0028] Middle connecting sleeve 1;

[0029] Locking joint 2, movable cannula 201, limiting ring 202, rotating ring 203, rotating sleeve 204, connecting sleeve 205, thread groove 206, fixing convex ring 207, fixing ring 208, expansion sleeve 209;

[0030] Sealing component 3, rubber airbag 301;

[0031] Inflatable part 4, fixed sleeve 401, movable piston 402, movable rod 403, connecting pipe 404, ball 405. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0036] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] See also Figure 1-6 As shown, a plug connector, the plug connector comprises:

[0038] A middle connecting sleeve 1, with locking joints 2 fixedly connected at both ends of the middle connecting sleeve 1;

[0039] The locking joint 2 can be expanded to lock and fix the plugged pipe;

[0040] A sealing component 3, wherein the sealing component 3 is fixedly arranged at the inner wall of the locking joint 2, and the sealing component 3 can perform sealing treatment on the plug-in connected pipe;

[0041] Through the above technical scheme, the pipeline can be effectively plugged in, connected and fixed, and the connection operation is relatively convenient. At the same time, within a certain range, the pipelines of different sizes can be connected and fixed, which solves the problem that ordinary connectors in the prior art can only be connected to pipelines of fixed sizes. Two pipelines of different sizes can be connected, which is convenient and flexible to use. Further, a sealing function is introduced, and auxiliary sealing treatment can be performed on the connected pipelines to avoid leakage when conveying liquids.

[0042] The locking joint 2 comprises a movable insert 201, a limiting ring 202, a rotating ring 203, a rotating sleeve 204, a connecting sleeve 205, a fixing ring 208 and an expansion sleeve 209. The movable insert 201 is fixedly connected to the middle connecting sleeve 1, and two limiting rings 202 are fixedly arranged on the arc-shaped wall of the movable insert 201;

[0043] A rotating ring 203 is fixedly connected to the inner cavity wall of the rotating sleeve 204 . The rotating ring 203 is disposed between the two limiting rings 202 and is slidably matched with the limiting rings 202 .

[0044] The outer wall of the connecting sleeve 205 and the inner wall of the rotating sleeve 204 are both provided with a thread groove 206, the rotating sleeve 204 and the connecting sleeve 205 are threadedly connected, a fixing ring 208 is fixedly connected to the inner cavity wall of the connecting sleeve 205, and an expansion sleeve 209 is fixedly connected to the front end of the fixing ring 208; the movable sleeve 201 extends to the inner side of the expansion sleeve 209.

[0045] The arc-shaped outer wall of the connecting sleeve 205 is fixedly connected with a fixed convex ring 207, and the outer surface of the fixed convex ring 207 is provided with knurling. When the pipeline needs to be plugged and connected, the pipeline is inserted into the inner cavity of the connecting sleeve 205, and the expansion sleeve 209 is inserted into the inner cavity of the pipeline, and then the fixed convex ring 207 is rotated to drive the connecting sleeve 205 to rotate through the fixed convex ring 207. Due to the threaded cooperation between the connecting sleeve 205 and the rotating sleeve 204, the connecting sleeve 205 is moved, thereby driving the expansion sleeve 209 to rotate. The plug sleeve 209 moves, so that the mobile plug pipe 201 is continuously inserted into the expansion plug sleeve 209. Since the mobile plug pipe 201 is inserted into the expansion plug sleeve 209, the expansion plug sleeve 209 is opened outward, and then the inner wall of the pipeline can be pressed tightly, thereby playing a role in fastening the pipeline, so that the connected pipeline is fixed. Through this technical solution, the connected pipeline can be fixed more conveniently, and through the fixing method of expansion locking, it can be fixed within a certain range for pipelines of different sizes, and the use effect is better;

[0046] The sealing component 3 is a rubber airbag 301, and the rubber airbag 301 is fixedly arranged on the inner wall of the connecting sleeve 205;

[0047] The rubber airbag 301 is an annular structure; the rubber airbag 301 is connected to the inflation part 4, and the inflation part 4 includes a fixed sleeve 401, a movable piston 402, a movable rod 403 and a ball 405. The fixed sleeve 401 is fixedly arranged at the side wall of the fixed ring 208, and the movable piston 402 is slidably connected in the inner cavity of the fixed sleeve 401. One end of the movable rod 403 is fixedly connected to the side wall of the movable piston 402, and the other end of the movable rod 403 passes through the inner cavity side wall of the fixed sleeve 401 and extends to the outside of the wall. One end of the connecting pipe 404 is fixedly connected in the inner cavity of the fixed sleeve 401, and the other end of the connecting pipe 404 extends into the inner cavity of the rubber airbag 301 and is fixedly connected to the rubber airbag 301;

[0048] A ball 405 is rotatably provided at one end of the moving rod 403, and the ball 405 is in contact with the rotating ring 203. When the connected pipe is locked and fixed, the distance between the fixing ring 208 and the rotating ring 203 is continuously reduced, thereby pushing the moving rod 403 to move, and then pushing the moving piston 402 to move. Through the movement of the moving piston 402, the gas in the inner cavity of the fixed sleeve 401 can be transported to the inner cavity of the rubber airbag 301 through the connecting pipe 404, and then the rubber airbag 301 can be expanded, so that the connected pipe is sealed by the expansion of the rubber airbag 301, so that the gap at the connection can be effectively blocked, which has the beneficial effect of avoiding leakage.

[0049] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plug connector, characterized in that: The plug connector comprises: A middle connecting sleeve (1), wherein both ends of the middle connecting sleeve (1) are fixedly connected with locking joints (2); The locking joint (2) can be expanded to lock and fix the plugged pipe; A sealing component (3) is fixedly arranged at an inner wall position of the locking joint (2), and the sealing component (3) can perform sealing processing on the plug-in connected pipe.

2. The plug connector according to claim 1, characterized in that: The locking joint (2) comprises a movable insert tube (201), a limiting ring (202), a rotating ring (203), a rotating sleeve (204), a connecting sleeve (205), a fixing ring (208) and an expansion sleeve (209); the movable insert tube (201) is fixedly connected to the middle connecting sleeve (1); and two limiting rings (202) are fixedly arranged on the arc-shaped wall of the movable insert tube (201).

3. The plug connector according to claim 2, characterized in that: A rotating ring (203) is fixedly connected to the inner cavity wall of the rotating sleeve (204); the rotating ring (203) is arranged between the two limiting rings (202) and is slidably matched with the limiting rings (202).

4. The plug connector according to claim 2, characterized in that: The outer wall of the connecting sleeve (205) and the inner wall of the rotating sleeve (204) are both provided with a threaded groove (206); the rotating sleeve (204) and the connecting sleeve (205) are threadedly connected; a fixing ring (208) is fixedly connected to the inner wall of the connecting sleeve (205); and an expansion sleeve (209) is fixedly connected to the front end of the fixing ring (208).

5. The plug connector according to claim 2, characterized in that: The mobile cannula (201) extends to the inner side of the expansion sleeve (209).

6. The plug connector according to claim 2, characterized in that: A fixed convex ring (207) is fixedly connected to the arc-shaped outer wall of the connecting sleeve (205), and knurling is provided on the outer surface of the fixed convex ring (207).

7. The plug connector according to claim 1, characterized in that: The sealing component (3) is a rubber airbag (301), and the rubber airbag (301) is fixedly arranged on the inner wall of the connecting sleeve (205).

8. The plug connector according to claim 7, characterized in that: The rubber airbag (301) is an annular structure.

9. The plug connector according to claim 8, characterized in that: The rubber airbag (301) is connected to the inflation part (4), and the inflation part (4) comprises a fixed sleeve (401), a movable piston (402), a movable rod (403) and a ball (405). The fixed sleeve (401) is fixedly arranged on the side wall of the fixed ring (208), and the movable piston (402) is slidably connected in the inner cavity of the fixed sleeve (401). One end of the movable rod (403) is fixedly connected to the side wall of the movable piston (402), and the other end of the movable rod (403) passes through the inner cavity side wall of the fixed sleeve (401) and extends outside the wall. One end of the connecting pipe (404) is fixedly connected in the inner cavity of the fixed sleeve (401), and the other end of the connecting pipe (404) extends into the inner cavity of the rubber airbag (301) and is fixedly connected to the rubber airbag (301).

10. The plug connector according to claim 9, characterized in that: A ball (405) is rotatably mounted at one end of the moving rod (403), and the ball (405) is in contact with the rotating ring (203).

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