JPS6141032Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tube connection mechanism, and more specifically, it provides a connection mechanism suitable for externally connecting a tube to a panel of equipment or the like.

For liquid analyzers and the like, it is necessary to connect a tube to the instrument panel from the outside. When connecting such tubes, it is desirable that they can be securely fixed and easily attached and detached.

Conventionally, this type of connection mechanism with various structures has been put to practical use, but these have drawbacks such as a large number of parts and, in the case of plastic molded products, easy wear.

The present invention was made with attention to these points, and its purpose is to provide a tube connection mechanism that has a relatively simple configuration and is suitable for connecting external tubes such as equipment panels. There is a particular thing.

The present invention, which achieves these objectives, consists of a panel with mounting holes, a stepped part formed on one side to fit into the panel's mounting hole, and a threaded groove on the outer periphery of this stepped part. a first member formed such that cylindrical protrusions for fitting and connecting the tubes are formed on both sides to communicate with each other, and a tapered part is formed on the outer periphery of at least the protrusions on the stepped part side; A tube with a pair of guiding projections formed in the diametrical direction of the outer periphery of the end portion having a tapered portion formed on the inner periphery so as to fit into the outer periphery of the projection on the stepped portion side of the first member. A threaded groove is formed on the inner periphery of one end to be threaded into a threaded groove on the outer periphery of the stepped portion of the first member, and a protrusion on the stepped portion side of the first member and a threaded groove that is fitted into the protrusion are formed on the other end. A cylindrical protrusion is formed to enclose the tube, and a second threaded groove is formed on the inner periphery of the protrusion to guide the protrusion formed on the outer periphery of the end of the tube. The first member and the second member are screwed together and fixed so as to sandwich the panel, and the tube is screwed into the space formed between the protrusion of the first member and the second member. It is characterized by being fixed.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention, in which 10 is a panel, 20 is a first member, and 3
0 and 40 are tubes, 50 is a second member, and 60 is a fixed member.

The panel 10 constitutes equipment, etc., and has mounting holes 11 formed therein.

The first member 20 and the second member 50 are made by cutting metal, and are screwed and fixed with the panel 10 sandwiched therebetween.

A stepped portion 21 is formed on one surface of the first member 20 so as to fit into the mounting hole 11 of the panel 10,
A thread groove 22 is formed on the outer periphery of the stepped portion 21. Further, on both surfaces of the first member 20, cylindrical protrusions 23 and 24 for fitting and connecting the tubes 30 and 40, respectively, are formed so as to communicate with each other. Note that, of these protrusions 23 and 24, a tapered portion is formed at least on the outside of the protrusion 23 on the stepped portion 21 side. In this example,
An example is shown in which a tapered portion is also formed on the outer periphery of the other protrusion 24. Furthermore, an annular protrusion 25 is formed on the outer periphery of the protrusion 24 .

The tube 30 is fitted onto the outer periphery of the protrusion 23 of the first member 20, and the tube 40 is fitted onto the outer periphery of the protrusion 24 of the first member 20. Tapered portions are formed on the inner peripheries of these tubes 30, 40 so as to correspond to the tapered portions of the fitting protrusions 23, 24, respectively. Furthermore, a pair of guide protrusions 31 and 32 are formed in the diametrical direction of the outer periphery of the end portion of the tube 30, as shown in FIG.

A threaded groove 51 is formed on the inner periphery of one end of the second member 50 to be threaded into the threaded groove 22 on the outer periphery of the stepped portion 21 of the first member 20, and the other end is formed with the threaded groove 22 on the outer periphery of the stepped portion 21 of the first member 20. Tube 3 fitted into protrusion 23
A cylindrical protrusion 52 is formed to enclose 0. The protrusion 31 formed on the outer periphery of the end of the tube 30 is disposed on the inner periphery of the protrusion 52.
A double thread groove 53 for guiding the thread 32 is formed.

The fixing member 60 is for fixing the tube 40 fitted to the protrusion 24 of the first member 20, and is attached so as to tighten the outer periphery inside the protrusion 25.

These are assembled as follows.

First, the first member 20 is inserted into the mounting hole 11 of the panel 10.
Insert the stepped part 21 of the thread groove 5 of the second member 50.
1 is screwed into the thread groove 22 of the stepped portion 21, and the first member 20 and the second member 50 are attached and fixed with the panel 10 sandwiched therebetween. As a result, the protrusion 23 of the first member 20 and the protrusion 52 of the second member 50
A space R into which the end of the tube 30 can be screwed is formed between the two. In this way the first
After the member 20 and the second member 50 are attached to the panel 10, the end of the tube 30 is screwed into the space R described above and fixed. When screwing in the tube 30, the protrusions 31 and 32 of the tube 30 are screwed along the double thread groove 53 of the protrusion 52 of the second member 50. As a result, the tapered portion of the protrusion 23 of the first member 20 and the tapered portion of the inner periphery of the tube 30 are fixed in close contact with each other. In addition, the first
A tube 40 is fitted into the protrusion 24 of the member 20 and fixed by a fixing member 60.

According to such a configuration, the tube 30 can be installed with a relatively simple configuration and without using any special tools.
can be attached and detached. In addition, when the tube 30 is screwed and fixed, the protrusion 3 of the tube 30
1 and 32 function as stoppers for the double threaded groove 53, so they are securely fixed and will not easily come off.

As explained above, according to the present invention, it is possible to realize a connection mechanism suitable for externally connecting a tube to a panel of equipment, etc., and the practical effects are great.

[Brief explanation of the drawing]

FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention;
FIG. 2 is a structural explanatory diagram showing an example of the end portion of the tube used in the present invention. 10... Panel, 20... First member, 30, 4
0...Tube, 50...Second member, 60...Fixing member.

Claims (1)

[Scope of utility model registration request] A panel has a mounting hole, a stepped part is formed on one side to fit into the mounting hole of the panel, a threaded groove is formed on the outer periphery of this stepped part, and a tube is fitted and connected on both sides. a first member formed such that a cylindrical protrusion communicates with the protrusion and a tapered portion formed at least on the outer periphery of the protrusion on the stepped portion side; and a protrusion on the stepped portion side of the first member. A tube has a tapered part formed on its inner periphery so as to fit around the outer periphery of the body, and a pair of guide protrusions formed in the diametrical direction of the outer periphery of the end, and a first member on the inner periphery of one end. A thread groove is formed to be screwed into the thread groove on the outer periphery of the stepped portion, and a cylindrical tube is formed at the other end to enclose the protrusion on the stepped portion side of the first member and the tube fitted to this protrusion. A second member is formed with a protrusion, and a second member is formed on the inner periphery of the protrusion with a double thread groove for guiding the protrusion formed on the outer periphery of the end of the tube, so as to sandwich the panel. The first member and the second member are screwed and fixed, and the tube is screwed and fixed into the space formed between the protrusion of the first member and the protrusion of the second member. Tube connection mechanism.