CN220623075U - Pneumatic connector - Google Patents

Abstract

The utility model discloses a pneumatic connector, which comprises an outer connector, wherein a through connecting hole is formed in the outer connector, an inner connector is rotationally connected in the connecting hole, a through hole is formed in the middle of the inner connector, an annular shrinkage plate is arranged at the end part of the inner connector, the shrinkage plate gradually shrinks and extends outwards to form a shrinkage groove between the shrinkage plate and the connecting hole, the shrinkage groove gradually shrinks and extends towards the inside of the connecting hole, a plurality of separation grooves which are annularly arranged are formed in the shrinkage plate to separate the shrinkage plate into a plurality of shrinkage pressing plates, and an inner pressure claw which protrudes outwards is arranged at the end part of the shrinkage pressing plate. The pneumatic joint has the beneficial effects that the contraction pressing plate and the inner pressure claw are simultaneously propped against the inner side wall of the air pipe connected with the outer joint, so that the connection firmness of the pneumatic joint and the air pipe is improved.

Description

Pneumatic connector

Technical Field

The utility model belongs to the technical field of pneumatic connectors, and particularly relates to a pneumatic connector.

Background

The pneumatic connector is a quick connector mainly used for air piping and pneumatic tools, and can realize pipeline connection or disconnection. During installation and maintenance, operators can also adjust the pneumatic connector according to the field installation size, and at present, the pneumatic connector is used in various pneumatic tools such as an air pipeline, an air compressor, a grinder, an air drill and the like.

Most of the existing pneumatic connectors are directly fixedly sleeved on the outer side of the air pipe, only the outer side of the pneumatic connector is attached to the air pipe, on one hand, the structure of the pneumatic connector is lacking from the inner side wall of the air pipe to be fixed, on the other hand, when the air pipe is extruded by external force at the joint of the pneumatic connector, the air pipe is easy to deform, the gap between the air pipe and the pneumatic connector is enlarged, and the connection between the air pipe and the pneumatic connector is easy to loose and fall.

Disclosure of Invention

The existing pneumatic connector is only directly fixedly sleeved on the outer side of the air pipe, lacks a structure for fixing the inner side wall of the air pipe, and enables the air pipe to be easily extruded by external force at the joint of the pneumatic connector to deform, so that the pneumatic connector is easily fallen off, and the following utility model is proposed to solve the problems:

the utility model provides a pneumatic connector, includes the outer joint, be equipped with the connecting hole that link up in the outer joint, connecting hole swivelling joint is equipped with the nipple, be equipped with the through-hole in the middle of the nipple, the tip of nipple is equipped with the shrink board that contracts gradually towards the outside, be formed with the shrink groove between shrink board and the outer joint inboard, the shrink groove contracts gradually towards the connecting hole inboard.

When the air pipe connecting device is used, the outer connector is sleeved on the outer side of the air pipe, then the inner connector is screwed into the connecting hole, the air pipe gradually enters the shrinkage groove until the inner side wall of the air pipe is attached to the shrinkage plate, so that the air pipe is pressed against the inner side of the air pipe, deformation of the connecting part of the air pipe and the outer connector is not easy to occur, and the firmness of connection between the air pipe and the air connector is improved.

Further, the inner joint wires are connected in the connecting holes, and the contraction plate is an annular round table gradually contracted towards the outer side.

Further, a plurality of separation grooves which are annularly arranged are formed in the shrinkage plate so as to separate the shrinkage plate into a plurality of shrinkage pressing plates, and the shrinkage pressing plates shrink inwards in the screwing process of the inner joint so as to adapt to air pipes with different inner diameters.

Further, the end part of the shrinkage pressing plate is provided with an inner pressure claw protruding outwards, and the inner pressure claw is always attached to the inner side wall of the air pipe, so that the connection strength between the air pipe and the pneumatic connector is improved.

Further, the other end part of the inner joint is provided with a disassembly head which is in a polygonal prism shape.

Further, a plurality of first fixing holes are formed in the disassembling head, threaded fasteners are connected in the first fixing holes in a threaded mode, second fixing holes for the threaded fasteners to be inserted into are formed in the outer joint, and after the threaded fasteners are inserted into the second fixing holes, the inner joint is prevented from screwing in and screwing out, so that the inner joint and the outer joint are fixedly connected.

Further, the connection part of the shrinkage plate and the inner joint is provided with a limiting table protruding outwards, and the connecting hole is internally provided with a limiting plate protruding inwards so as to prevent the inner joint from being excessively screwed in front of the limiting table.

Advantageous effects

The utility model provides a pneumatic connector, which has the beneficial effects that an inner connector is arranged in an outer connector, after an air pipe is inserted into the outer connector, the inner connector is screwed into the outer connector, and a contraction plate at the end part of the inner connector can be propped against the inner side wall of the air pipe from the inside, so that the connection strength of the air pipe and the pneumatic connector is directly improved, and on the other hand, the contraction plate is propped against the air pipe from the inside, so that the air pipe is not easy to deform at the joint of the air pipe and the outer connector even if the air pipe is extruded by external force, and the firmness between the pneumatic connector and the air pipe is further improved.

Drawings

FIG. 1 is a schematic perspective view of a pneumatic fitting according to the present utility model;

FIG. 2 is a schematic perspective view of an outer joint according to the present utility model;

fig. 3 is a schematic perspective view of the nipple according to the present utility model.

The correspondence between the reference numerals and the component names in the drawings is as follows:

1. an outer joint; 2. an inner joint; 3. a shrink plate; 4. a shrink tank; 11. a connection hole; 12. a second fixing hole; 21. a through hole; 22. a first fixing hole; 23. disassembling the head; 24. a limiting plate; 31. a separation groove; 32. a shrink platen; 33. internal pressure claw; 34. and a limiting table.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in the following examples.

It will be apparent that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

In addition to the above terms may be used to denote orientation or positional relationships, other meanings may be used, such as the term "upper" may also be used in some cases to denote some sort of attachment or connection. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-3, which are preferred embodiments of the present utility model, a pneumatic connector comprises an outer connector 1 and an inner connector 2, wherein a through connecting hole 11 is formed in the outer connector 1, an internal thread is formed in the connecting hole 11, a through hole 21 is formed in the middle of the inner connector 2, an external thread matched with the connecting hole 11 is formed at the outer side of the inner connector 2, the inner connector 2 and the outer connector 1 are movably connected, the inner connector 2 can be screwed in or screwed out from the outer connector 1, a ring-shaped shrinkage plate 3 is arranged at the end part of the inner connector 2, the shrinkage plate 3 gradually shrinks towards the opening of the connecting hole 11, namely, a shrinkage groove 4 is formed between the shrinkage plate 3 and the connecting hole 11, and the shrinkage groove 4 gradually shrinks towards the inside of the connecting hole 11.

When the air pipe is used, the air pipe is inserted into the connecting hole 11 of the outer joint 1, at the moment, the outer side face of the air pipe is attached to the inner side wall of the connecting hole 11, then the inner joint 2 is screwed into the connecting hole 11, the shrinkage plate 3 is inserted into the air pipe, in the screwing process of the inner joint 2, the air pipe enters into the inner side of the shrinkage groove 4 until the inner side wall of the air pipe is contacted with the shrinkage plate 3, and the air pipe is further fixed from the inner side of the air pipe. Because the shrinkage plate 3 is propped against the inner side of the air pipe, the air pipe is not easy to deform at the joint with the outer joint 1 even if being affected by external force, and the firmness of the connection between the air pipe and the pneumatic joint is improved.

In this embodiment, the shrink plate 3 is provided with a plurality of annular separation grooves 31, the separation grooves 31 separate the shrink plate 3 into a plurality of annular shrink press plates 32, an inner pressure claw 33 is disposed at an end of the shrink press plate 32, and the inner pressure claw 33 protrudes in an arc shape.

In the process that the shrinkage plate 3 enters the trachea, the shrinkage pressing plate 32 is shrunk inwards, and the inner side wall of the trachea is always attached to the inner pressure claw 33, so that the connection strength between the trachea and the pneumatic connector is further improved.

In this embodiment, the other end of the inner joint 2 is further provided with a hexagonal prism-shaped disassembling head 23, and the inner joint 2 can be screwed in or out by using a corresponding tool, further, the disassembling head 23 is provided with a plurality of first fixing holes 22, each of the first fixing holes 22 is internally screwed with a threaded fastener, and the outer joint 1 is provided with a second fixing hole 12 into which the threaded fastener is inserted.

After the nipple 2 is screwed into the first fixing hole 22 and the second fixing hole 12 on the same axis, a screw fastener is screwed into the second fixing hole 12 to fix the nipple 2 from rotating.

In this embodiment, the connection part between the shrinkage plate 3 and the nipple 2 is further provided with a limiting table 34 protruding towards the outside, the connection hole 11 is internally provided with a limiting plate 24 protruding towards the inside, and during the screwing process of the nipple 2, the limiting plate 24 is blocked in front of the limiting table 34, so as to prevent the nipple 2 from being excessively screwed in.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a pneumatic connector, includes outer joint (1), be equipped with link up connecting hole (11) in outer joint (1), its characterized in that: the inner joint (2) is arranged in the middle of the inner joint (2), the annular shrinkage plate (3) is arranged at the end part of the inner joint (2), the shrinkage plate (3) gradually shrinks and extends towards the outer side, a shrinkage groove (4) is formed between the shrinkage plate (3) and the connecting hole (11), and the shrinkage groove (4) gradually shrinks and extends towards the inside of the connecting hole (11).

2. The pneumatic fitting of claim 1, wherein: the shrinkage plate (3) is provided with a plurality of separation grooves (31) which are annularly arranged so as to separate the shrinkage plate (3) into a plurality of shrinkage pressing plates (32).

3. The pneumatic fitting of claim 2, wherein: the end of the contraction pressing plate (32) is provided with an inner pressure claw (33) protruding outwards.

4. The pneumatic fitting of claim 1, wherein: the other end part of the inner joint (2) is provided with a multi-prismatic disassembly head (23).

5. The pneumatic fitting of claim 4, wherein: the dismounting head (23) is provided with a plurality of first fixing holes (22), threaded fasteners are connected in the first fixing holes (22) in a threaded mode, and the outer joint (1) is provided with second fixing holes (12) for inserting the threaded fasteners.

6. The pneumatic fitting of claim 1, wherein: the connecting part of the shrinkage plate (3) and the inner joint (2) is provided with a limiting table (34) protruding outwards, and the connecting hole (11) is internally provided with a limiting plate (24) protruding inwards so as to block the front of the limiting table (34).

7. The pneumatic fitting of claim 1, wherein: the inner joint (2) is connected in the connecting hole (11) in a threaded manner.