TWM467040U - Structure of joint - Google Patents

Description

Joint structure

This creation relates to the structure of a joint, especially a joint structure that prevents the rubber ring from coming off the body.

As shown in FIG. 6, the structure of the conventional joint includes a body 91, a nut 92, a rubber ring 93 and an inner core 94. The nut 92 is disposed on the head 911 of the body 91, and the rubber ring 93 Provided in the head 911, the inner core 94 is locked in the head 911.
The structure of the conventional joint is provided in a refrigerant measuring device for connecting the joint of the refrigerant pipe, thereby measuring the high pressure and low pressure of the refrigerant. Wherein, the body 91 is abutted against the joint of the refrigerant tube, and the nut 92 is locked to the joint of the refrigerant tube, so that the refrigerant measuring instrument can measure the pressure in the refrigerant tube.
However, when the pressure is formed on the head 911 of the body 91, since the refrigerant contains oil, the refrigerant penetrates into the outer periphery of the rubber ring 93 with the high pressure, and the rubber ring 93 is lubricated in the head 911 to be easily released. . Therefore, in actual use, the joint originally locked in the joint of the refrigerant pipe, often when the joint of the refrigerant pipe is detached, the rubber ring 93 falls out of the head 911, and if the operator does not find the rubber ring 93 falling, it is installed immediately. Back, the connector can no longer be used until the new rubber ring 93 is reinstalled.
Therefore, how to solve the problem of the structure of the above-mentioned conventional joints is the main focus of the creation.

The main purpose of the present invention is to solve the above problems and provide a joint structure, in which the inner core is pressed into the bottom of the chamber in the head of the body, so that the rubber ring can be surely fixed in the chamber. Make sure the connector can continue to be used.
For the purposes of the foregoing, this creative department includes:
a body having a head at one end, the head having a chamber therein, and the head having an internal thread at the bottom of the chamber;
a nut disposed on the head of the body and having a threaded section outside the head of the cover;
a rubber ring having a flexible elasticity, disposed in the chamber, and having a peripheral end abutting the head in the side wall of the chamber, having a perforation;
An inner core having an external threaded portion locked to the internal threaded portion at one end and a pushing portion at the other end, and a connecting portion between the externally threaded portion and the pushing portion, wherein the connecting portion is forced in the through hole Tight the glue ring to the bottom of the chamber.
The above and other objects and advantages of the present invention will become more apparent from the detailed description and the accompanying drawings.
Of course, the present invention is allowed to differ in some of the parts, or the arrangement of the parts, but the selected embodiments are described in detail in the present specification, and the construction thereof is shown in the drawings.

(customized part)
91‧‧‧Ontology
911‧‧‧ head
92‧‧‧ nuts
93‧‧ ‧ Rubber ring
94‧‧‧ Core (this part of the creation)
1‧‧‧ Ontology
11‧‧‧ head
111‧‧‧ side wall
12‧‧ ‧ room
13‧‧‧Threaded Department
2‧‧‧ nuts
21‧‧‧ thread segments
3‧‧ ‧ rubber ring
31‧‧‧ outer weeks
32‧‧‧Perforation
321‧‧‧ Large diameter hole
322‧‧‧Small diameter hole
33‧‧‧First rim
4‧‧‧ core
41‧‧‧External thread
42‧‧‧Pushing Department
43‧‧‧Connecting Department
431‧‧‧Small path
432‧‧‧ Large diameter section
44‧‧‧second rim
3A‧‧‧ Rubber ring
32A‧‧‧Perforation
321A‧‧‧spivel cone
4A‧‧‧ core
41A‧‧‧External thread
43A‧‧‧Connecting Department
431A‧‧‧Bevel

Fig. 1 is a perspective view showing the stereoscopic combination of the first embodiment of the present invention.
Fig. 2 is a perspective exploded view of the first embodiment of the present invention.
Figure 3 is a schematic cross-sectional view showing the first embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view showing the joint between the rubber ring and the inner core of the first embodiment of the present invention.
Figure 5 is a cross-sectional view showing the structure of the second embodiment of the present invention and the joint between the rubber ring and the inner core.
Figure 6 is a schematic cross-sectional view of a conventional joint.

Please refer to Fig. 1 to Fig. 5, which shows the structure of the embodiment selected for the present invention, which is for illustrative purposes only and is not limited by the structure in the patent application.
The embodiment provides a structure of a joint, as shown in Figures 1 to 2, comprising a body 1, a nut 2, a rubber ring 3 and an inner core 4, wherein:
As shown in FIGS. 2 to 3, the body 1 has a head 11 at one end, the head 11 has a chamber 12 therein, and the head 11 has an internal thread portion 13 at the bottom of the chamber 12.
As shown in FIGS. 2 to 3, the nut 2 is disposed on the head portion 11 of the body 1. The nut 2 has a threaded portion 21 outside the head portion 11 that is covered.
As shown in FIGS. 2 to 4, the rubber ring 3 has a flexible elasticity and is disposed in the chamber 12, and the outer periphery 31 abuts against the side wall 111 of the head portion 11 in the chamber 12, and has a perforation. 32.
As shown in FIGS. 2 to 4, the inner core 4 has an external thread portion 41 at one end thereof, and the threaded portion 41 is locked to the internal thread portion 13, and the inner core 4 has an pushing at the other end of the externally threaded portion 41. The portion 42 has a connecting portion 43 between the male screw portion 41 and the pushing portion 42.
As shown in FIGS. 2 to 4, the through hole 32 of the present embodiment includes a large diameter hole 321 opening toward the outside of the chamber 12, and a small diameter hole 322 opening into the chamber 12, the rubber ring 3 being A first retaining edge 33 is formed in the through hole 32 by the radial difference between the large diameter hole 321 and the small diameter hole 322.
As shown in the second to fourth embodiments, the connecting portion 43 of the present embodiment includes a small diameter portion 431 adjacent to the external thread portion 41 extending in the small diameter hole 322, and a large diameter adjacent to the pushing portion 42. A section 432 extends in the large diameter hole 321 , and a diameter difference between the large diameter section 432 and the small diameter section 431 of the connecting portion 43 forms a second retaining edge 44 , and the second retaining edge 44 is at the external thread portion 41 . When the internal thread portion 13 is locked, the first retaining edge 33 is pressed to press the rubber ring 3 to the bottom of the chamber 12.
It is not difficult to find out from the above description that the advantages of the present invention are that when the rubber ring 3 and the inner core 4 are both disposed in the head portion 11 of the body 1, the connecting portion 43 passing through the inner core 4 is in the large diameter portion 432 and the small diameter. The second rib 44 formed by the diameter difference of the segment 431 is pressed against the first rib 33 formed by the diameter difference between the large diameter hole 321 and the small diameter hole 322 in the through hole 32 thereof, thereby the rubber ring 3 is thereby formed. Pressing on the bottom of the chamber 12. Therefore, during the refrigerant measurement process, when the pressure is formed on the head 11 of the body 1, although the refrigerant contains oil, the rubber ring 3 is indeed forced to the bottom of the chamber 12, so that the refrigerant penetrates the rubber ring with high pressure. 3 The probability of the outer circumference can be relatively reduced, and even if the refrigerant penetrates into the outer periphery of the rubber ring 3 with the high pressure, the second retaining edge 43 of the connecting portion 43 of the inner core 4 can be pressed against the first retaining edge 33 to block the glue. The ring 3 is lubricated and loosened in the head 11.
Of course, there are still many examples of this creation, only the details change. Please refer to FIG. 5, which is a second embodiment of the present invention, which comprises a body 1, a nut 2, a rubber ring 3A and an inner core 4A. The main difference from the first embodiment lies in the rubber ring. The perforation 32A of the 3A has a tapered taper hole 321A whose aperture is tapered from an end toward the outside of the chamber 12 toward an end in the chamber 12. The connecting portion 43A has a tapered tapered portion 431A corresponding to the tapered tapered hole 321A, and the tapered tapered portion 431A presses against the inner wall of the tapered tapered hole 321A when the externally threaded portion 41A locks the female threaded portion 13 The effect of forcing the rubber ring 3A at the bottom of the chamber 12 with the first embodiment can also be achieved.
The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention.
From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

1‧‧‧ Ontology

11‧‧‧ head

111‧‧‧ side wall

12‧‧ ‧ room

2‧‧‧ nuts

21‧‧‧ thread segments

3‧‧ ‧ rubber ring

31‧‧‧ outer weeks

32‧‧‧Perforation

321‧‧‧ Large diameter hole

322‧‧‧Small diameter hole

33‧‧‧First rim

4‧‧‧ core

41‧‧‧External thread

42‧‧‧Pushing Department

43‧‧‧Connecting Department

431‧‧‧Small path

432‧‧‧ Large diameter section

44‧‧‧second rim

Claims (3)

A structure of a joint, comprising:
a body having a head at one end, the head having a chamber therein, and the head having an internal thread at the bottom of the chamber;
a nut disposed on the head of the body and having a threaded section outside the head of the cover;
a rubber ring having a flexible elasticity, disposed in the chamber, and having a peripheral end abutting the head in the side wall of the chamber, having a perforation;
An inner core having an external threaded portion locked to the internal threaded portion at one end and a pushing portion at the other end, and a connecting portion between the externally threaded portion and the pushing portion, wherein the connecting portion is forced in the through hole Tight the glue ring to the bottom of the chamber.
The structure of the joint according to claim 1, wherein the through hole comprises a large diameter hole opening toward the outside of the housing, and a small diameter hole opening into the housing, the rubber ring is in the perforation by the large diameter The diameter difference between the hole and the small diameter hole forms a first rim; the connecting portion includes a small diameter section adjacent to the external thread portion extending in the small diameter hole, and a large diameter section adjacent to the ejector portion Provided in the large diameter hole, a diameter difference between the large diameter section and the small diameter section of the connecting portion forms a second retaining edge, and the second retaining edge presses the outer threaded portion when the female threaded portion is locked The first retaining edge urges the rubber ring to the bottom of the chamber. The structure of the joint according to claim 1, wherein the perforation has a tapered taper hole, and the taper hole has a diameter that is tapered toward an end of the chamber toward an end of the chamber; the connecting portion has a The taper corresponds to the tapered taper of the tapered taper, and the tapered taper presses the inner wall of the tapered taper when the male threaded portion locks the inner threaded portion to press the rubber ring to the bottom of the chamber.