CN114636031A

CN114636031A - Novel air pipe joint

Info

Publication number: CN114636031A
Application number: CN202210360295.8A
Authority: CN
Inventors: 侯企丁
Original assignee: Yuyao Qifeite Pneumatic Element Co ltd
Current assignee: Yuyao Qifeite Pneumatic Element Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-06-17

Abstract

The invention relates to a novel air pipe joint which comprises a joint sleeve, a sealing ring concentrically embedded in the joint sleeve, a clamp spring ring embedded in an opening at the right end of the joint sleeve and positioned on the right side of the sealing ring, and a button sleeve movably inserted in the opening at the right end of the joint sleeve and positioned on the right side of the clamp spring ring; a first reaming part is formed on the inner wall of the opening at the right end of the joint sleeve, a clamping sleeve is also embedded in the first reaming part, the root of the button sleeve is movably inserted in the clamping sleeve, and a second reaming part is formed on the inner wall of the opening at the left end of the clamping sleeve; the invention indirectly presses the button sleeve into the joint sleeve by the aid of the clamping sleeve, and the clamping sleeve is provided with at least two open slots to facilitate the pressing of the button sleeve, so that the wall thicknesses of the joint sleeve and the button sleeve can be increased on the premise of not influencing assembly, the limitation of the wall thicknesses of the joint sleeve and the button sleeve on pressure resistance is further broken through, and the pressure resistance is greatly improved to enlarge the application range.

Description

Novel air pipe joint

Technical Field

The invention relates to a novel air pipe joint.

Background

The air pipe joint is a quick joint mainly used for air piping and pneumatic tools, has a series of advantages of convenient use, no need of welding, no need of flaring the piping and the like, and is widely applied to hydraulic and pneumatic systems of various machines; the button cover among the current air pipe joint is directly impressed inside the one end opening part of adapter sleeve, because button cover and adapter sleeve all are metal material, consequently, the deformation volume of button cover and adapter sleeve is all less, in order to impress the button cover in the adapter sleeve, the wall thickness of button cover and adapter sleeve all can not be done too big, otherwise just can't accomplish the assembly, again because the pressure resistance of air pipe joint has direct relation with the wall thickness of button cover and adapter sleeve, in case when the atmospheric pressure in the air pipe joint was too big, the button cover will break away from the adapter sleeve, this pressure resistance that just leads to current air pipe joint has received the restriction, can't obtain promotion by a relatively large margin, cause air pipe joint's application scope less, need to wait for solution urgently.

Disclosure of Invention

In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide a novel air pipe joint which greatly improves the pressure resistance to expand the application range.

The technical scheme adopted by the invention for solving the technical problems is as follows: a novel air pipe joint comprises a joint sleeve, a sealing ring concentrically embedded in the joint sleeve, a clamp spring ring embedded in an opening at the right end of the joint sleeve and positioned on the right side of the sealing ring, and a button sleeve movably inserted in the opening at the right end of the joint sleeve and positioned on the right side of the clamp spring ring; the root opening part of button cover outwards is formed with the spacing circle, and the edge is formed with first annular conical surface outside the tip opening part of spacing circle, and first annular conical surface mutually supports its characterized in that with the jump ring circle: a first reaming part is formed on the inner wall of the opening at the right end of the joint sleeve, a clamping sleeve is further embedded in the first reaming part, the root of the button sleeve is movably inserted in the clamping sleeve, a second reaming part is formed on the inner wall of the opening at the left end of the clamping sleeve, the limiting ring is inserted in the second reaming part, and the root of the limiting ring is matched with the bottom surface of the second reaming part; be formed with third reaming portion on the opening part inner wall of second reaming portion, the jump ring circle inlays to be established in third reaming portion, the opening part of third reaming portion still inlays and is equipped with the stop collar, the right side of sealing washer is located to the stop collar, the root of stop collar compresses tightly the edge at the jump ring circle, two open slots that angle evenly distributed such as the circumferencial direction are seted up at least on the right-hand member outer wall of cutting ferrule, every the bottom of open slot all intersects with the inner wall of second reaming portion.

Furthermore, a second annular conical surface is formed at the inner side edge of the opening at the root part of the limiting sleeve, and the second annular conical surface is matched with the clamp spring coil to provide a space for deformation of the clamp spring coil.

Furthermore, an annular cavity is formed in the bottom surface of the first reaming part, and the end part of the limiting sleeve is embedded into the annular cavity.

Furthermore, a chamfer edge is formed at the inner side edge of the opening at the right end of the cutting sleeve.

Compared with the prior art, the invention has the advantages that: the invention indirectly presses the button sleeve into the joint sleeve by the aid of the clamping sleeve, and the clamping sleeve is provided with at least two open slots to facilitate the pressing of the button sleeve, so that the wall thicknesses of the joint sleeve and the button sleeve can be increased on the premise of not influencing assembly, the limitation of the wall thicknesses of the joint sleeve and the button sleeve on pressure resistance is further broken through, and the pressure resistance is greatly improved to enlarge the application range.

Drawings

FIG. 1 is a cross-sectional structural view of the present invention;

fig. 2 is a cross-sectional structural view of the ferrule of the present invention;

fig. 3 is a right view structural view of the ferrule of the present invention.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

As shown in fig. 1 to 3, a novel air pipe joint comprises a joint sleeve 1, a sealing ring 2 concentrically embedded in the joint sleeve 1, a clamp spring ring 3 embedded in an opening at the right end of the joint sleeve 1 and positioned at the right side of the sealing ring 2, and a button sleeve 4 movably inserted in the opening at the right end of the joint sleeve 1 and positioned at the right side of the clamp spring ring 3; a limiting ring 41 is formed outwards at the opening at the root part of the button sleeve 4, a first annular conical surface 42 is formed at the outer edge of the opening at the end part of the limiting ring 41, and the first annular conical surface 42 is matched with the jump ring 3; when the novel hose connector is used, the end part of the button sleeve 4 is pressed inwards by a hand to drive the limiting ring 41 to move leftwards, so that the central clamping hole of the clamp spring ring 3 is pressed to deform leftwards and turn over a certain angle, then one end of the hose 7 sequentially penetrates through the button sleeve 4, the clamp spring ring 3 and the sealing ring 2 from right to left and is inserted into the connector sleeve 1, the inner wall of the sealing ring 2 is sleeved on the outer wall of the hose 7 to play a sealing role, finally, the end part of the button sleeve 4 is loosened by the hand, the clamp spring ring 3 is reset by means of the resilience of the clamp spring ring 3, so that the inner wall of the clamp spring ring tightly holds the outer wall of the hose 7, the hose 7 is fixed in the connector sleeve 1, and meanwhile, the clamp spring ring 3 pushes the limiting ring 41 rightwards to complete the reset of the button sleeve 4 during the reset, the principle is the prior art, and the novel hose connector is characterized in that: a first reaming part 101 is formed on the inner wall of the right end opening of the joint sleeve 1, a clamping sleeve 5 is further embedded in the first reaming part 101, the root of the button sleeve 4 is movably inserted in the clamping sleeve 5, a second reaming part 52 is formed on the inner wall of the left end opening of the clamping sleeve 5, the limiting ring 41 is inserted in the second reaming part 52, and the root of the limiting ring 41 is matched with the bottom surface of the second reaming part 52; a third reaming part 51 is formed on the inner wall of the opening of the second reaming part 52, the clamp spring coil 3 is embedded in the third reaming part 51, a limiting sleeve 6 is further embedded at the opening of the third reaming part 51, the limiting sleeve 6 is arranged on the right side of the sealing ring 2, and the root of the limiting sleeve 6 is tightly pressed on the edge of the clamp spring coil 3; the outer wall of the right end of the cutting sleeve 5 is provided with at least two open grooves 53 which are uniformly distributed along the circumferential direction at equal angles, and the bottom of each open groove 53 is intersected with the inner wall of the second reaming part 52.

The inboard edge of the root opening part of stop collar 6 is formed with second annular conical surface 61, and second annular conical surface 61 mutually supports with jump ring circle 3 for the space is provided to the deformation of jump ring circle 3.

An annular cavity 102 is formed in the bottom surface of the first reamer part 101, and the end of the stop collar 6 is embedded in the annular cavity 102.

A chamfered edge 54 is formed on the inner side edge of the right end opening of the cutting sleeve 5.

During assembly: firstly, the circlip 3 is arranged in the third reaming part 51, and then the right end of the limiting sleeve 6 is pressed into the opening of the third reaming part 51 and tightly presses the root of the circlip 3; then, the limiting ring 41 on the button sleeve 4 is inserted into the right end of the ferrule 5 from right to left by utilizing the mutual matching of the first annular conical surface 42 and the chamfered edge 54, and because the outer diameter of the limiting ring 41 is larger than the inner wall of the right end opening of the ferrule 5, when the limiting ring 41 is inserted into the right end opening of the ferrule 5, the right end opening of the ferrule 5 is elastically expanded outwards to a certain extent by means of the arrangement of each open slot 53 and the elasticity of the limiting ring 41, until the limiting ring 41 completely passes through the right end opening of the ferrule 5 and is inserted into the second reaming part 52; finally, the ferrule 5 is pressed into the first counterbore portion 101 and the left end of the stop collar 6 is inserted into the annular cavity 102.

When in use: one end of the hose 7 sequentially penetrates through the button sleeve 4, the clamp spring ring 3 and the sealing ring 2 from right to left and is inserted into the joint sleeve 1, and finally, the end part of the button sleeve 4 is loosened by a hand, the clamp spring ring 3 is reset by means of the rebound force of the clamp spring ring 3, so that the inner wall of the clamp spring ring clings to the outer wall of the hose 7, and the hose 7 is fixed in the joint sleeve 1; because the right-hand member opening part of cutting ferrule 5 can rely on the setting of every open slot 53 and rely on self elasticity and outside elasticity extension certain degree, so can suitably increase the wall thickness of cutting ferrule 5 and spacing collar 41 and the size of the 4 wall thickness difference a of button cover, when the internal gas pressure of joint cover 1 is too big, because spacing collar 41 and the 4 wall thickness difference a of button cover are great, and receive the restriction of cutting ferrule 5, the root of spacing collar 41 can be firmly locked by the bottom surface of second reaming part 52, and then can not break away from cutting ferrule 5 because of too big atmospheric pressure, thereby the joint strength of hose 7 has been promoted in order to show the pressure resistance that promotes by a wide margin.

According to the invention, the button sleeve 4 is indirectly pressed into the joint sleeve 1 by means of the clamping sleeve 5, and the clamping sleeve 5 is provided with at least two open grooves 53 to facilitate the pressing of the button sleeve 4, so that the wall thicknesses of the joint sleeve 1 and the button sleeve 4 can be increased on the premise of not influencing the assembly, the limitation of the wall thicknesses of the joint sleeve 1 and the button sleeve 4 on the pressure resistance is further broken through, and the pressure resistance is greatly improved to expand the application range.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel air pipe joint comprises a joint sleeve, a sealing ring concentrically embedded in the joint sleeve, a clamp spring ring embedded in an opening at the right end of the joint sleeve and positioned on the right side of the sealing ring, and a button sleeve movably inserted in the opening at the right end of the joint sleeve and positioned on the right side of the clamp spring ring; the root opening part of button cover outwards is formed with the spacing circle, and the edge is formed with first annular conical surface outside the tip opening part of spacing circle, and first annular conical surface mutually supports its characterized in that with the jump ring circle: a first reaming part is formed on the inner wall of the opening at the right end of the joint sleeve, a clamping sleeve is further embedded in the first reaming part, the root of the button sleeve is movably inserted in the clamping sleeve, a second reaming part is formed on the inner wall of the opening at the left end of the clamping sleeve, the limiting ring is inserted in the second reaming part, and the root of the limiting ring is matched with the bottom surface of the second reaming part; the clamp spring is characterized in that a third reaming part is formed on the inner wall of the opening of the second reaming part, the clamp spring coil is embedded in the third reaming part, a limiting sleeve is further embedded at the opening of the third reaming part and is arranged on the right side of the sealing ring, the root of the limiting sleeve is tightly pressed on the edge of the clamp spring coil, at least two open slots which are uniformly distributed at equal angles along the circumferential direction are formed in the outer wall of the right end of the clamp sleeve, and the bottom of each open slot is intersected with the inner wall of the second reaming part.

2. The new gas pipe connector of claim 1, wherein: the inner side edge of the root opening of the limiting sleeve is provided with a second annular conical surface, and the second annular conical surface is matched with the clamp spring coil to provide a space for deformation of the clamp spring coil.

3. The new gas pipe connector of claim 1, wherein: an annular cavity is formed in the bottom surface of the first reaming part, and the end part of the limiting sleeve is embedded into the annular cavity.

4. The new gas pipe connector of claim 1, wherein: a chamfer edge is formed on the inner side edge of the opening at the right end of the cutting sleeve.