CN216430814U

CN216430814U - Universal pneumatic joint

Info

Publication number: CN216430814U
Application number: CN202123322419.3U
Authority: CN
Inventors: 蔡松青
Original assignee: Taizhou Caishi Machinery Co ltd
Current assignee: Taizhou Caishi Machinery Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-03
Anticipated expiration: 2031-12-27
Also published as: WO2023123332A1

Abstract

The utility model discloses an universal pneumatic joint, its characterized in that: comprises an inner core, an inserting core and a sealing ring; a first air channel is arranged on the inserting core; one end of the inserting core is a ball end, and the other end of the inserting core is a quick plug; a second air passage is arranged on the inner core; one end of the inner core is provided with a threaded connection end, the other end of the inner core is provided with a ball cavity, a step table is arranged in the ball cavity, and the step table is positioned above 1/2 of the height of the ball cavity; the sealing ring is arranged on the step platform; the ball end completely enters the ball cavity to enable the first air passage and the second air passage to be communicated; the cavity wall of the ball cavity gathers towards the ball end to coat the ball end so that the sealing ring is pressed on the ball end. The utility model uses two connecting pieces to complete the pneumatic joint, and has simple structure; the pipeline connecting device is convenient to use, does not need to be additionally assembled in the pipeline connection, does not need to worry about the reduction of the precision due to the tray loading of a plurality of parts, and is flexible and reliable to use.

Description

Universal pneumatic joint

Technical Field

The utility model relates to a connect, concretely relates to universal pneumatic joint.

Background

The high-pressure air source can be directly discharged into the environment after being used, has no problems of recovery and pollution, and has good controllability, so the high-pressure air source is widely applied to various pneumatic tools such as spray guns, wrenches, hammers, screwdrivers, drilling holes, grinding and the like in recent years.

Different universal joints are currently developed on the market, for example with the following patent numbers: the ball joints of CN201062695Y, CN207777838U and CN207777839U have the problems of more complicated structural parts; the plurality of spare and accessory parts are in spiral assembly connection, but the spiral assembly connection is easy to loosen during long-time use to cause poor air tightness, and the spare and accessory parts increase assembly errors and have higher requirements on the machining precision of the spare and accessory parts; in addition, parts are easy to wear when the electric heating cooker is used for a long time, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an universal pneumatic joint can solve one or more among the above-mentioned technical problem.

In order to achieve the above object, the present invention provides the following technical solutions:

a universal pneumatic joint comprises an inner core, an insertion core and a sealing ring.

A first air channel is arranged on the inserting core; one end of the inserting core is a ball end, and the other end of the inserting core is a quick plug;

a second air passage is arranged on the inner core; one end of the inner core is provided with a threaded connection end, the other end of the inner core is provided with a ball cavity, a step table is arranged in the ball cavity, and the step table is positioned above 1/2 of the height of the ball cavity;

the sealing ring is arranged on the step platform; the ball end completely enters the ball cavity to enable the first air passage and the second air passage to be communicated;

the cavity wall of the ball cavity gathers towards the ball end to coat the ball end so that the sealing ring is pressed on the ball end.

Preferably: the sealing ring is an O-shaped ring.

Preferably: a gap is provided between the ball end and the ball cavity.

Preferably: the threaded connection end is an external thread.

Preferably: the threaded connection end is an internal thread.

Preferably: the threaded connection end is provided with an internal thread and an external thread.

The technical effects of the utility model are that:

the utility model uses two connecting pieces to complete the pneumatic joint, and has simple structure; the pipeline connecting device is convenient to use, does not need to be additionally assembled in the pipeline connection, does not need to worry about the reduction of the precision due to the tray loading of a plurality of parts, and is flexible and reliable to use.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a schematic cross-sectional explosive structure of FIG. 1;

fig. 4 is a schematic sectional structure view of fig. 1.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only intended to explain the invention, but not to limit the invention in a proper manner.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 4, the universal pneumatic joint comprises an inner core 100, an insert core 200 and a sealing ring 300.

A first air channel 201 is arranged on the insertion core 200; one end of the ferrule 200 is a ball end 202 and the other end is a quick plug 203.

The fast plug 230 of the product ferrule can change the ferrule style such as japanese style, american style, etc. according to the requirement, which is not limited herein.

A second air channel 102 is arranged on the inner core 100; one end of the inner core 100 is provided with a threaded connection end 104, wherein the threaded connection end is an external thread or an internal thread and is arranged according to actual needs; and then or the inner part and the outer part are both provided with threads to be connected according to the actual connection requirement.

The other end of the inner core 100 is provided with a ball cavity 101, a step 103 is arranged in the ball cavity 101, and the step 103 is positioned above 1/2 of the height of the ball cavity 101; the sealing ring 300 is mounted on the step platform 103; the sealing ring 300 is preferably an O-ring. The ball end 202 completely enters the ball cavity 101 to communicate the first air passage 201 with the second air passage 202.

The height of the step table needs to be above the center of the ball end, so that the sealing ring is pressed on the upper part of the ball end, and the sealing of the air path can be effectively realized.

The cavity wall of the ball cavity 101 gathers towards the ball end 202 to coat the ball end 202, so that the sealing ring is pressed on the ball end. Wherein a gap is provided between the ball end and the ball cavity to facilitate rotation of the ferrule within the core.

In the utility model, the cavity wall of the ball cavity is changed in shape by adopting a hydraulic mode to fix and prevent the insert core from falling off; this is similar to riveting; the sealing is completely found through the sealing ring, the requirement on the processing precision of the inserting core and the inner core is not high, the processing precision is reduced, and the cost of parts is reduced; no abrasion exists between the inserting core and the inner core; the service life is prolonged.

The product is connected with an air gun, a spray gun and various pneumatic tools, and the head of the insert core is inserted into various pneumatic quick connectors to be connected with an air pipe. The product has the function of flexibly converting the angle and can be used more conveniently.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal pneumatic joint, its characterized in that: comprises an inner core, an inserting core and a sealing ring;

the cavity wall of the ball cavity is gathered towards the ball end to coat the ball end, so that the sealing ring is pressed on the ball end.

2. The gimbaled pneumatic joint of claim 1, wherein: the sealing ring is an O-shaped ring.

3. The gimbaled pneumatic joint of claim 1, wherein: a gap is provided between the ball end and the ball cavity.

4. The gimbaled pneumatic joint of claim 1, wherein: the threaded connection end is an external thread.

5. The gimbaled pneumatic joint of claim 1, wherein: the threaded connection end is an internal thread.