JPH076504Y2 - Device for connecting the temperature measuring device to the wiring terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a device for connecting a lead wire to a wiring terminal in a temperature measuring device using a detection element such as a thermocouple or a resistance temperature detector.

(Prior Art) For measuring the temperature of molten metal in a high temperature furnace such as a tundish, for example, a temperature measuring device having a thermocouple and a protective tube thereof is used.

The end of the protective tube of the temperature measuring device is connected to a wiring terminal so that a conductor from an external recorder is connected to the wiring terminal (for example, Japanese Utility Model Publication No. 63-24767).

However, in the device of the publication, an operator is required to open and close the wiring terminal lid to connect the conductor wire to the terminal screw in the wiring terminal, attach and detach the conductor wire terminal screw with a driver, and confirm the polarity of the conductor wire and the terminal screw. It may be dangerous because it requires going to the wiring terminal.

On the other hand, as a device that enables easy operation, Shoko 63-7878
Although the gazette is known, even in this case, a worker needs to go to the wiring terminal in order to connect the conducting wire to the wiring terminal, and thus remote control cannot be performed.

Furthermore, in a high temperature atmosphere, it is necessary to keep the temperature of the compensating contact portion of the wiring terminal at room temperature. However, in the conventional device, a method of easily supplying cooling air to the device at the same time as connecting the conductor wire to the wiring terminal is used. There wasn't.

(Problems to be Solved by the Invention) An object of the present invention is to provide a connection device to a wiring terminal of a temperature measuring device, which can solve the above-mentioned conventional problems and can be operated remotely and easily.

(Means for Solving the Problems) In order to achieve the above object, the present invention has an inner tube having a lead wire housed therein and a male connector attached to the tip thereof, and a gap between the outer circumference of the inner tube. An outer tube provided, a connecting rod that runs axially in the gap and is moved back and forth by a grasping ring, a ball holding ring fixed to the tip of the connecting rod and having a tapered surface, and a tapered surface of the ball holding ring. Connection device to the wiring terminal of the temperature measuring device consisting of a ball that is pushed by the spring and projects outward from the hole of the socked head and is inserted into the groove of the socket recess of the wiring terminal An inner pipe to which a male body is attached, an outer pipe provided with a gap on the outer periphery of the inner pipe, a connecting rod that runs axially in the gap and is operated to move forward and backward by a grasping ring, and Solid at the tip A ball holding ring having a fixed tapered surface, a ball pressed by a spring on the tapered surface of the ball holding ring to project outward from the hole of the socket head and to be fitted into the groove of the socket recess of the wiring terminal; We propose a connection device to a wiring terminal of a temperature measuring device consisting of an air flow path for cooling provided in the pipe.

(Operation) (1) The connection device of the present invention has the structure described in the scope of claims for utility model registration, and in particular, since it is operated via the connecting rod and connected to the wiring terminal, it can be remotely operated.

(2) The connecting device of the present invention has the same structure as above, and in particular, it is easy to operate because it only moves the connecting rod forward and backward.

(Embodiment) A connecting device to a wiring terminal of a temperature measuring device of the present invention will be described below with reference to an embodiment shown in the drawings.

1 to 7 show the device according to the invention, which has an inner tube (1) containing a conductor (3).

A male connector body (2) is attached to the tip of the inner tube (1).

Next, the base portion of the inner pipe (1) is fixed to the outer pipe (5) (provided on the outer periphery of the inner pipe (1)) via the connecting ring (4).

A socket head (6) fitted to the wiring terminal (20) is fixed to the tip of the outer tube (5).

The socket head (6) holds a sphere (17) in the hole (6a).

Next, a grip ring (11) is provided on the outer periphery of the base of the inner pipe (1).
Is slidably mounted.

The grip ring (11) is connected to a ball holding ring (14) located in the socket head (6) by a connecting rod (13) running axially between the inner pipe (1) and the outer pipe (5). It

The ball retaining ring (14) has a taper surface and is constantly subjected to a thrust force toward the tip end by a spring (16).

The other end of the spring (16) is supported by a spring seat ring (7) fixed to the inner pipe (1).

The function of the connection device to the wiring terminal of the present invention shown in the above embodiment is as follows.

That is, the socket head (6) is fitted into the socket recess (21) of the wiring terminal (20). At that time, the operator first slides the grasping ring (11) around the outer circumference of the inner pipe (1). Retreat against.

The retreat of the grasping ring (11) is transmitted to the ball holding ring (14) via the connecting rod (13), and this retreats against the spring (16).

Therefore, the ball (17) is retracted inward at the hole (6a) of the socket head (6).

This allows the operator to connect the inner pipe (1) to the wiring terminal (20).
It is possible to push it into the socket recess (21).

By pushing in, the male connector body (2) is fitted and electrically connected to the female connector body (23) of the wiring terminal (20).

The operator then releases the grip ring (11) which causes the spring (16) to advance the ball retaining ring (14).

As a result, the sphere (17) is pushed by the tapered surface of the sphere retaining ring (14) and moves from the hole (6a) of the socket head (6) to the groove (22) of the socket recess (21) of the wiring terminal (20). The inner pipe (1) and the male connector body (2) are fitted and retained.

The connecting device of the present invention is used in the above state. For example, when it is used in a high temperature place, the cooling air is supplied from the cooling air coupler (24) into the inner pipe (1). Air from the ventilation hole (26) of the wiring terminal (20) through the ventilation hole (25) of 1), the ventilation hole (18) of the ball retaining ring (14), the socket recess (21) and the ventilation hole (27). Be washed away.

(Effects of the Invention) The embodiment of the connection device to the wiring terminal of the temperature measuring device of the present invention is as described above, and the effects thereof are listed below.

(1) The connection device of the present invention has the structure described in the scope of claims for utility model registration, and in particular, since it is operated via the connecting rod and connected to the wiring terminal, it can be remotely operated.

(2) The connecting device of the present invention has the same structure as above, and in particular, it is easy to operate because it only moves the connecting rod forward and backward.

[Brief description of drawings]

 Fig. 1 is a sectional front view of the device of the present invention. Fig. 2 is a II-II sectional view of Fig. 1. Fig. 3 is the same as III-III sectional view. Fig. 4 is the same as IV-IV sectional view. Fig. 5 is the same as above. V-V sectional view Fig. 6 is the same as above VI-VI sectional view Fig. 7 is the same as above View taken in the direction of arrow A Fig. 8 is a sectional front view showing the same device as the tundish 1: Front view 1: Inner pipe, 2: Connector male body 3: Conductor, 4: Connection ring 5: Outer tube, 6: Socket head 6a: Hole, 7: Spring seat ring 8: Screw, 9: Screw 11: Holding ring, 12: Screw 13: Connecting rod, 14: Ball retaining ring 15 : Screw, 16: Spring 17: Ball, 18: Vent hole 20: Wiring terminal, 21: Socket recess 22: Groove, 23: Female connector 24: Cooling air coupler 25, 26, 27: Vent hole 30: Tundish , 31: Protective tube 32: Molten metal

Continued Front Page (72) Toshifumi Sakurai, Toshifumi Sakurai 1-7-10 Nishihonmachi, Nishi-ku, Osaka City, Osaka Prefecture Kawaso Electric Industry Co., Ltd. (72) Masao Nakano 1-7-10, Nishihonmachi, Nishi-ku, Osaka City, Osaka Prefecture No. Kawasawa Electric Industry Co., Ltd. (56) References Actually open 53-102094 (JP, U) Actually open 59-35867 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. An inner tube having a conductor housed therein and having a male connector attached to its tip, an outer tube provided with a gap on the outer periphery of the inner tube, and a grip ring that runs axially in the gap. A connecting rod that is operated to move forward and backward by means of a ball holding ring that is fixed to the tip of the connecting rod and has a tapered surface; Connection device to the wiring terminal of the temperature measuring device consisting of a ball that fits into the groove of the socket recess 2. An inner tube having a conductor housed therein and having a male connector attached to its tip, an outer tube provided with a gap on the outer periphery of the inner tube, and a grip ring that runs axially in the gap. A connecting rod that is operated to move forward and backward by means of a ball holding ring that is fixed to the tip of the connecting rod and has a tapered surface; Device for connecting to a wiring terminal of a temperature measuring device, which comprises a ball fitted into the groove of the socket recess and an air flow passage for cooling provided in the inner pipe