JPH0336745Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Related industry field) Doors that open and close automatically by remote control (e.g. ship hatches, building ceiling doors, etc.) can be opened and closed remotely manually in an emergency when hydraulic or pneumatic drive sources are lost. Quickly and safely perform mechanical connection work with operating rods.
Furthermore, the present invention relates to an automatic insertion/removal device that can be opened and closed with little effort.

(Prior Art) Some ships have an air supply port that has a device that temporarily closes the door during stormy weather. Due to the structure of the ship, this door is generally opened and closed by remote control. An example is shown in FIGS. 5 and 6.

In the figure, a is the air intake, and b is the engine room. Now, to open and close the door c of the air intake port a,
Operating air is sent from an operating air supply pipe d to a driving air cylinder e, and a door c is opened and closed by the expansion and contraction of a piston f.

However, if the operating air source connected by the air supply pipe d is lost, it is operated by the remote manual handle g as shown in Figure 6, but under normal conditions the door c
The edges are cut near to prevent rotation during air operation. Therefore, in an emergency such as when the air source is lost, the operator approaches the door c and connects the door opening/closing shaft i and the manual operation rod j using the connecting pin h. However, since the work is done during navigation, it not only requires a great deal of labor but is also dangerous.

(Problem to be solved by the invention) Therefore, if the air source etc. is lost and the air cylinder e for remote automatic opening/closing operation stops working, just by turning the remote manual handle g, the door drive shaft i will be automatically opened. When the manual operation rod j is fitted, the door c can be opened and closed, and the air cylinder e has recovered its function, the door drive shaft i and the manual operation rod j can be connected by simply setting the rotational position of the handle g. The aim is to develop a mechanically simple device that is detachable, easy to manually operate, and mechanically simple.

(Solution of invention) A movable piece is screwed into a threaded portion provided at the tip of the drive shaft, and the movable piece is fixed in the axial direction by a fixed flange on the driven shaft side and a collar provided on the drive shaft. Although it is immovable, it is installed movably by being guided by a guide bolt fixed between the drive shaft and a relatively rotatable stopper, and the moving piece is moved left and right by the rotation of the drive shaft, and the driven shaft Rotation is transmitted when it comes into contact with .

(Example) An explanation will be given based on FIGS. 1 to 2 a to i. 1 is a drive shaft corresponding to manual operation rod j in Fig. 6;
2 is a passive shaft corresponding to the door drive shaft i. The drive shaft 1 has a collar 1a at the tip, a threaded portion 1b at the tip, and a non-threaded portion 1c at the tip.

The driven shaft 2 has at its center a flange 2b having a recess 2a corresponding to the non-threaded portion 1c and a threaded hole 2c for a guide bolt.

Reference numeral 3 denotes a movable piece having a female threaded portion 3a at the center and a pair of guide bolt insertion holes 3b, and the female threaded portion is screwed into the threaded portion 1b of the drive shaft 1.

A stopper 4 has a hole 4a into which the drive shaft 1 fits and a hole 4b through which a pair of guide bolts 5 are inserted.

Reference numeral 5 denotes a guide bolt, which has screws at both ends and a collar 5a that abuts against the stopper 4.

Returning to FIG. 1, the movable piece 3 is connected to the drive shaft 1.
The guide bolt 5 is inserted into the pair of insertion holes 3b. One end of the guide bolt 5 is screwed into the screw hole 2c of the driven shaft 2, and the other end is brought into contact with the stopper 4 passed through the drive shaft 1 with the collar 5a, and the stopper 4 has an insertion hole 4c.
After passing through, it is tightened with nut 6.

(Function) When the drive shaft 1 is rotated to the left, the movable piece 3 screwed into the threaded portion 1b is guided by the guide bolt 5 and moves to the left (FIG. 3a).

When the drive shaft 1 is further rotated in the same direction from the state shown in FIG.

When the drive shaft 1 is rotated clockwise, the moving piece 3 moves to the right (FIG. 3c).

When the drive shaft 1 is further turned clockwise from the state shown in Fig. 3c, the moving piece 3 comes into close contact with the stopper 4 (the third
d), the driven shaft 2 starts rotating in the same direction.

FIG. 4 shows a state in which the joint mechanism of the present invention is applied to the opening/closing part of the air supply door shown in FIG. The manual operating rod and manual handle do not rotate while the door is being opened or closed by air-driven remote control, but if the air source is lost, simply rotating the remote manual handle g to the right or left will activate this device. The rod is the drive shaft i of the door.
The door is mechanically connected to open or close.

(Effects) The movable piece moves left and right depending on the direction of rotation of the drive shaft 1, and by contacting the driven shaft or the stopper, the rotational force of the drive shaft is transmitted to the driven shaft. Furthermore, the rotation range of the passive shaft is adjusted in response to changes in the movement range of the moving piece.

Therefore, unlike conventional methods, there is no need to perform mating and uncoupling work using connection pins near the door each time to switch between automatic and manual switching. This saves labor and reduces danger to workers.

[Brief explanation of the drawing]

FIG. 1 is a front view of the automatic fitting/disconnecting joint of the present invention. Second
Figures a to i are also exploded views. FIGS. 3a to 3d are explanatory diagrams of the action. FIG. 4 shows the automatic fitting/disconnecting device attached to the air supply door. Figure 5 is a cross-sectional view of the vicinity of the ship's air supply door. Figure 6 shows a conventional example of the opening/closing mechanism for the air supply door. In the figure; 1...drive shaft, 2...passive shaft, 3
...Moving piece, 4...Stopper, 5...Guide bolt, 6...Natsuto.

Claims (1)

[Scope of utility model registration request] A moving piece 3 is attached to a threaded portion 1b provided at the tip of the drive shaft 1.
are screwed together, and the movable piece 3 is fixed to the fixed flange 2b on the driven shaft 2 side and a stopper that cannot be moved in the axial direction but is rotatable relative to the drive shaft 1 by the collar 1a provided on the drive shaft 1. 4. An automatic fitting/disconnecting joint characterized in that it is movably attached while being guided by a guide bolt 5 fixedly installed between the fitting and the fitting.