JPH0539119Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a refueling connector that enables quick and reliable connection and disconnection with equipment to be refueled.

[Conventional technology]

In order to refuel equipment to be refueled by connecting a refueling pipe only when necessary, a refueling connector as shown in FIG. 2 has conventionally been used. That is, this refueling connector is equipped with a screw 1a at one end that is screwed to the refueling port M' of the equipment M to be refueled, and fastens the tightening disc 3 to the tube shaft 1 fitted with the sealing member 2.
A valve 5 is provided at the other end of the tube shaft 1 by a spring 6 so as to normally protrude slightly from the end to close the pipeline, and a coupler 4 to which an oil supply pipe O is attached is rotatably and detachably attached. It is. Note that V is a valve provided in the oil supply pipe O, and the coupler 4 has a valve 7 inside the internal valve seat 4a.
is normally made to project slightly beyond the valve seat 4a by a spring 8, and is provided so as to close the valve seat 4a, and a ball 9 is held at the end opposite to the oil supply pipe O.

When using the above conventional connector, coupler 4
is connected to the tube shaft 1, and with the valve V closed, support the vicinity of the sealing member 2 of the tube shaft 1 with, for example, the left hand,
Holding the tightening disk 3 with the right hand, apply the tip screw 1a of the tube shaft 1 to the oil supply port M' of the equipment M to be lubricated, and rotate the tightening disk 3.

As a result, the screw 1a is screwed to the oil filler port M', the seal member 2 seals the area around the oil filler port M', and the tube shaft 1 is fixed to the equipment M to be lubricated. Oil enters the tube shaft 1 from the oil supply pipe O through the coupler 4, and from there passes through the oil supply port M' to be supplied to the equipment M to be oiled. When refueling is completed, close the valve V, support the tube shaft 1, and rotate the tightening disc 3 in the opposite direction to the above, and the screw 1a will come off from the refueling port M', separating the tube shaft 1 and the oiled object. The connection with device M is released.

[Problem that the invention attempts to solve]

However, with the conventional connector described above, when attaching and detaching the lubricated equipment M, it is necessary to support the tube shaft 1 with one hand and rotate the tightening disc 3 with the other hand, which takes time. This is remarkable when the pitch of the screws 1a is made finer in order to improve the sealing performance. Furthermore, when it is necessary to use the device during assembly line work, such as on an automobile assembly line, there is a risk that the connection will not be made securely in a hurry.

On the other hand, a cylinder with a rotational direction switching mechanism provided with claw teeth that engage with each of the threads is fitted onto a shaft in which two intersecting threads facing left and right are formed in a concave or convex manner, and the cylinder is fitted onto the shaft. A device that is used as a screwdriver (screw tightener) by connecting the handle to a mounted handle and moving the handle back and forth along the axis is, for example, a screwdriver (screw tightener) developed in 1973.
This method is known from Japanese Utility Model Publication No. 23519 and Japanese Utility Model Application Publication No. 57-91573.

[Means for solving problems]

The purpose of this invention is to provide a device that can be quickly and reliably attached to and detached from lubricated equipment by applying the technology that has been used only for the above-mentioned drivers. A helical oil pipe shaft, which is equipped with a screw to be screwed to the oil supply port of the equipment to be lubricated and has a cross-thread formed on the outer periphery, is connected to a system built-in cylinder with a rotation direction switching switch that engages with the cross-thread connected to the handle. The oil supply connector is characterized in that, when fitted together, a coupler having an oil supply pipe attached to the other end of the helical oil pipe shaft is rotatably and detachably attached.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the embodiment shown in FIG.
is a helical oil pipe shaft having a pipe line 11a inside, and the tip of the helical oil pipe shaft 11 has a refueling port for the equipment M to be lubricated.
The screw 11b screwed together with M', and the screw 1
1b, a flange portion 11c is formed, and a plurality of intersecting threads 11d are formed on the outer periphery of the helical oil pipe shaft 11 at a distance from the flange portion 11c, extending from side to side. A valve 12 cooperating with the coupler 4 is provided, usually by means of a spring 13, so as to partially protrude and close the conduit 11a.

14 is a system built-in cylinder that is connected (integrated in the illustrated example) with the handle 15 on the screw 11b side;
A rotation direction changeover switch 16 is provided which is fitted into the helical oil pipe shaft 11 together with the handle 15 and which engages with the intersecting thread 11d inside the helical oil pipe shaft 11.

Reference numeral 17 denotes a coil spring, which is interposed in the handle 15 between one of the inner ends of the handle 15 and a stepped portion 11e created by making the helical oil pipe shaft 11 thinner on the handle 15 side.
5 and the Siltem-containing cylinder 14 are pressed leftward in FIG. Reference numeral 18 denotes a sealing member, which is connected to the screw 11b of the flange portion 11c of the helical oil pipe shaft 11.
Fitted on the side.

A retaining ring 19 is loosely fitted to the helical oil pipe shaft 11 on the side opposite to the screw 11b of the flange portion 11c, and is prevented from coming off by a stopper 20 fitted and fixed to the oil pipe shaft 11.

When using the oil supply connector 10, first, the coupler 4 is connected to the base end of the helical oil pipe shaft 11 with the valve V of the oil supply pipe O closed. That is, the valve 7 of the coupler 4 is brought into contact with the valve 12 provided at the base end of the helical oil pipe shaft 11, and then each valve 7, 1
2 is pushed into the interior against the springs 8 and 13 to open the pipe 11a, and at the same time, the ball 9 is pushed into the helical oil pipe shaft 1.
1 to connect the coupler 4 to the helical oil pipe shaft 11.

Next, after holding the retaining ring 19 with one hand,
Set the rotation direction switch 16 in the direction in which the screw 11b advances, apply the screw 11b of the helical oil pipe shaft 11 to the oil filler port M' of the equipment M to be oiled, push the handle 15 in the direction of the screw 11b against the spring 17, If the return operation is repeated, the helical oil pipe shaft 11 will rotate and the screw 11b will be threadedly connected to the oil filler port M'. At this time, due to the presence of the ball 9 of the coupling ring 4, the proximal end side of the helical oil pipe shaft 11 is
There is no problem even if it rotates.

When the screw connection is completed, the sealing member 18 seals the area around the oil supply port M', and the helical oil pipe shaft 11 is fixed to the equipment M to be oiled, so that oil can be supplied by opening the valve V here.

To remove the helical oil pipe shaft 11 after refueling, close the valve V, set the rotation direction changeover switch 16 in the direction in which the screw 11b is retracted, and then press the handle 15 in the same manner as described above to remove the helical oil pipe shaft 11. By rotating in the opposite direction to the above, the screw 11b is loosened, and the helical oil pipe shaft 11 is removed from the oil supply port M' of the equipment M to be oiled.

[Effect of idea]

As mentioned above, the refueling connector according to the present invention has the following features:
Built-in system with a rotation direction switching switch that engages a helical oil pipe shaft with a screw connected to the oil supply port of the equipment to be lubricated at one end and a cross-thread formed on the outer periphery with the cross-thread connected to the handle. When fitted into the tube, a coupler with an oil supply pipe attached to the other end of the helical oil pipe shaft is rotatably and detachably attached, so that the screw provided on the helical oil pipe shaft can be connected to the oil supply port of the equipment to be lubricated. When connecting screws to the oil supply port, the screw connection can be made simply by placing the screw on the oil filler port and sliding the handle along the axis of the helical oil pipe, which takes much less time than the conventional tightening disk that rotates. In addition, the direction of the screw relative to the oil filler port can be easily determined. Therefore, it is possible to quickly and reliably refuel the oil, and since it is necessary to support the retaining ring only when applying the screw to the oil filler port, there are various effects such as less fatigue on the part of the operator.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the oil supply connector according to the present invention, showing the state in which it is connected to a coupler, and Fig. 2 is a longitudinal cross-sectional view of a conventional oil supply connector, also showing the state in which it is connected to the coupler. be. 4...Coupler, 10...Refueling connector, 11...
Spiral oil pipe shaft, 11a...pipe line, 11b...screw,
11c...Flange part, 11d...Cross thread, 1
1e...Step part, 11f...Groove, 7, 12...Valve, 8, 13...Spring, 9...Ball, 14...
System built-in tube, 15... Handle, 16... Rotation direction switch, 17... Coil spring, 18
... Seal member, 19 ... Retaining ring, 20 ... Stopper, M ... Lubricated equipment, M' ... Oil supply port, O ...
...Refueling pipe.

Claims (1)

[Scope of utility model registration request] Built-in system with a rotation direction changeover switch that engages a helical oil pipe shaft with a screw connected to the oil supply port of the equipment to be lubricated at one end and a cross-thread formed on the outer periphery with the cross-thread connected to the handle. An oil supply connector characterized in that, when fitted into a cylinder, a coupler having an oil supply pipe attached to the other end of the helical oil pipe shaft is rotatably and detachably attached.