JPH0649892U - Coupling structure - Google Patents

Abstract

(57) [Summary] [Purpose] By shortening the dimension between the adapter and the ball valve and reducing the pool of liquid at the connection point, cleaning is easier and the weight is lighter, and the adapter and ball valve are screwed together. It is an object of the present invention to provide a coupling structure that does not require any work and can reduce the on-site installation work. A valve-equipped adapter 30 is provided at one end of one pipe 1, a coupler 4 is attached to one end of the other pipe 3 and the valve-equipped adapter 30 is inserted, and is pivotally attached to the coupler 4. And at least one fastening lever 12 having a cam portion 13 that can fit into the recess 15 of the valved adapter 30 inserted into the coupler 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coupling structure capable of connecting and disconnecting pipes by a one-touch operation.

[0002]

[Prior art]

 A conventional coupling structure will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, a tubular adapter 2 is attached to one end of one pipe 1 by a method such as screwing or fitting, and another end is attached to one end of the other pipe 3 in the same manner, and the above description is made. It is composed of a tubular coupler 4 into which the adapter 2 is inserted.

The coupler 4 includes at least two fastening levers 12 pivotally attached by a pivot shaft 11. Each of the fastening levers 12 has a cam portion 13, and the cam portion 13 is operated by rotating the fastening lever 12 around the pivot shaft 11. Then, in the cam portion 13, when the adapter 2 is inserted into the coupler 4 and fitted into the recess 15 on the peripheral surface of the adapter 2, the adapter 2 and the rotating cylinder portion 7 are firmly connected. In this state, the free end of the fastening lever 12 approaches the coupler 4.

A pulling ring 18 is provided at the free end of the fastening lever 12 in order to facilitate rotation of the fastening lever 12 when the tubes 1 and 3 are separated. Further, the coupler 4 is provided with a gasket 19 with which the end surface of the adapter 2 can come into close contact.

The adapter 2 is generally connected to the adapter 2 in order to temporarily stop the substance pumped from one pipe 1 when the connection state between the adapter 2 and the coupler 4 is released and separated. Is connected to the ball valve 25 shown in FIG.

In order to connect the adapter 2 and the ball valve 25, a threaded portion 2 a is provided on the inner peripheral surface of the adapter 2 on the pipe 1 side, and the end of the cylindrical casing 26 of the ball valve 25 is provided. A threaded portion 25a is provided in the portion, and a connecting member (not shown) such as a nipple is used to connect these threaded portions 2a and 25a.

The ball valve 25 includes the cylindrical casing 26 and a sphere 27 rotatably supported inside the casing 26. A through hole 28 is formed in the sphere 27 in the lateral direction so as to be electrically connected to the housing 26. A lever handle 29 protruding from the upper portion of the casing 26 is attached to the upper portion of the ball 27. Although not shown, one end 1 of the ball valve 25 is connected to the opposite end of the threaded portion 25a by a method such as screwing or fitting.

That is, by rotating the lever handle 29, the sphere 27 is rotated to connect or disconnect the housing 26 and the through hole 28 of the sphere 27. The valve 25 is opened and closed.

[0009]

[Problems to be solved by the device]

 However, in the coupling structure described above, since the adapter 2 and the ball valve 25 are separate components, the threaded portion 2a is formed on the adapter 2 and the threaded portion 25a is formed on the ball valve 25. 2a and 25a are connected by a connecting member such as a nipple.

Therefore, the dimension between the adapter 2 and the ball valve 25 becomes long, and a liquid pool is generated in this portion, and cleaning is troublesome when used for high clay products such as food.

Further, since the screw portions 2a and 25a are formed on the adapter 2 and the ball valve 25, respectively, and they are connected by a connecting member such as a nipple, the weight is inevitably increased. Further, when the adapter 2 and the ball valve 25 are connected, a screwing operation is required, which causes a problem such as poor workability in installation on site.

The present invention has been made in view of the above circumstances, and its purpose is to facilitate cleaning, reduce the weight, and eliminate the need for screwing the adapter and the ball valve into the field installation work. It is to provide a coupling structure capable of reducing the above.

[0013]

[Means for Solving the Problems]

 In order to achieve the above object, the coupling structure of the present invention is provided with an adapter at one end of one pipe and a coupler into which the adapter is inserted at one end of the other pipe, and is rotatable with respect to this coupler. A ball valve is formed integrally with the adapter, and is equipped with at least one tightening lever having a cam portion that is pivotally attached to the adapter and is fitted into the recess of the adapter. This is because the adapter with a valve is configured and the adapter with a valve and the coupler are connected.

[0014]

[Action]

 According to the coupling structure having the above configuration, since the ball valve is integrally formed with the adapter, the valve-equipped adapter can be directly connected to the coupler, the dimension between the adapter and the ball valve can be shortened, and the weight can be reduced. Is lightened.

[0015]

【Example】

 An embodiment of the present invention will be described below with reference to FIG. The same components as those described above are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 shows a coupling structure, and 30 is an adapter with a valve. The adapter main body 31 of this valve-equipped adapter 30 is composed of a first tubular body 32 and a second tubular body 33, and one end of the first tubular body 32 is provided with a screw for connecting one of the tubes 1. The portion 34 is provided, and the connection screw portion 35 is provided at the other end. The connection screw portion 35 is provided at one end of the second tubular body 33.

A connection threaded portion 36 that is screwed into the connection threaded portion 35 is provided at one end of the second tubular body 33, and has a tubular shape on the outer peripheral surface at the other end like the conventional adapter 2. A recess 15 is provided.

By connecting the first tubular body 32 and the second tubular body 33 with the connecting screw portions 35 and 36, a valve chamber 37 is formed inside the adapter body 31, and the valve chamber 37 is formed in the valve chamber 37. A sphere 27 rotatably supported by a pair of valve seats 38 is housed. The ball 27 is connected to the lever handle 29 through a support shaft 39 that penetrates the side wall of the adapter body 31 and projects to the outside.

As described above, in the adapter with valve 30, the ball valve 25 is integrally provided in the adapter body 31, and the adapter with valve 30 can be directly connected to the coupler 4. That is, the second tubular body 33 having the recess 15 is inserted into the coupler 4, the fastening lever 12 of the coupler 4 is rotated around the pivot shaft 11, and the free end of the fastening lever 12 approaches the coupler 4. By doing so, the cam portion 13 of the fastening lever 12 and the concave portion 15 of the valve-equipped adapter 30 engage with each other, and the valve-equipped adapter 30 and the coupler 4 are connected.

As described above, since the adapter 2 with the valve is constructed by integrally forming the adapter 2 and the ball valve 25, the conventional adapter is not necessary, and the dimension of the adapter body 31 of the adapter with valve 30 is shortened. In addition, the weight is reduced and the liquid pool is reduced, which facilitates cleaning. Further, the work of screwing the adapter 2 and the ball valve 25 is eliminated, and the work for mounting on site is reduced.

[0020]

[Effect of device]

 Since the present invention is configured as described above, by forming the ball valve integrally with the adapter, it is not necessary to form a threaded portion or a connecting member on the adapter, and the size and weight can be reduced. You can As a result, the liquid pool can be reduced, cleaning can be facilitated, screwing work between the adapter and the ball valve is eliminated, and the work to be installed on site can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a coupling structure according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a conventional coupling structure.

FIG. 3 is a vertical sectional side view of a conventional ball valve.

[Explanation of symbols]

1 ... One tube, 3 ... Other tube, 4 ... Coupler, 12 ...
Fastening lever, 13 ... Cam portion, 15 ... Recessed portion, 25 ... Ball valve, 30 ... Valved adapter.

Claims (1)

[Scope of utility model registration request] 1. An adapter attached to one end of one pipe, a coupler attached to one end of the other pipe and into which the adapter is inserted, and a pivotally mounted pivotable member in the coupler. In a coupling structure including at least one fastening lever having a cam portion that can be fitted into the recess of the inserted adapter, a ball valve is integrally formed with the adapter to form a valve adapter. A coupling structure characterized in that an adapter with a valve is connected to the coupler.