JPH0414710Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an attachment/detachment device for detachably attaching a bowl to the body of a pneumatic device such as a lubricator or filter.

Problems to be Solved by Conventional Technologies and Ideas For example, a lubricator has a cup-shaped bowl for storing oil on the lower surface of a body in which an air flow passage having an orifice is transparent in a substantially horizontal direction, and a cup-shaped bowl for storing oil. A bowl guard is installed to prevent the oil from scattering in the event that the bowl ruptures due to high pressure being applied inside the bowl.The oil in the bowl is sucked up by the pressure difference between the bowl and the orifice, and is supplied to the orifice. Conventionally, the bowl attaching/detaching device for such a lubricator is
For example, a plurality of hooks may be protruded at regular intervals in the circumferential direction on the edge side of the inner peripheral surface of a circular mounting tube formed on the body, and a plurality of hooks may be formed on the outer periphery of the edges of the bowl and bowl guard. The flanges of the bowl and bowl guard protrude at regular intervals, and the bowl and bowl guard are provided with unevenness that positions the flanges at an angle that aligns with each other. By fitting the bowl and bowl guard into the mounting tube between the sections and rotating the bowl and bowl guard at a certain angle, the collar is hooked to the hook section and attached to the body. A device is used in which a tongue piece is provided, which engages with an engaging portion provided on the body to prevent rotation of the bowl and bowl guard at a position where the bowl guard is attached to the body.

By the way, in such an attachment/detachment device, the bowl and the bowl guard fitted onto the bowl are
The structure is such that the respective flanges are only positioned in the circumferential direction so that they align with each other, and no binding force is applied in the axial direction, so when attaching the bowl, the bowl Although the bowl guard and the bowl guard can be held together and attached, when removing the bowl, rotate the bowl and bowl guard until the collar is positioned between the hooks, then pull the bowl guard. First, only the bowl guard was separated from the bowl and removed, and therefore, it was necessary to pull the bowl further to remove it, resulting in a troublesome removal process.

Means for Solving the Problems As a means for solving the above problems, the bowl attaching/detaching device for pneumatic equipment of the present invention has a fitting protrusion formed on the bowl, and a fitting protrusion formed on the bowl guard. The structure includes an elastic connecting piece having a fitting hole into which the part fits.

Functions and Effects The present invention has the above configuration, and when the bowl guard is fitted to the bowl, the elastic connecting piece formed on the bowl guard rides on the fitting protrusion of the bowl while being elastically deformed, and the elastic connecting piece The fitting protrusion fits into the fitting hole, whereby the bowl and bowl guard are joined together and attached to the body, and when the bowl is removed, the bowl guard can be pulled out to remove the bowl. removed together and also
By elastically deforming the elastic connecting piece, the fitting protrusion can be removed from the fitting hole and the bowl guard and bowl can be separated.

Thus, in the present invention, the bowl and the bowl guard are integrally connected by fitting the fitting protrusion formed on the bowl into the fitting hole of the elastic connecting piece formed on the bowl guard. Therefore, the bowl and bowl guard can be removed from the body at the same time, making the removal process easier.
The two can be joined together by simply fitting the bowl guard onto the bowl, making the joining process itself easy.Furthermore, since the bowl and bowl guard can be easily separated, the outer circumferential surface of the bowl can be easily It has the effect of making it easier to remove dirt.

Embodiment Hereinafter, an embodiment in which the present invention is applied to a lubricator A will be described based on FIGS. 1 and 2.

The lubricator A of this embodiment has a transparent cup-shaped bowl 3 made of polycarbonate for storing oil on the lower surface of a body 1 in which an air flow passage 2 is horizontally transparent, and a transparent cup-shaped bowl 3 made of polycarbonate for storing oil, and a transparent cup-shaped bowl 3 that is fitted onto the outside of the bowl 3. A bowl guard 4 made of synthetic resin such as nylon is attached to protect the bowl 3.
Due to the pressure difference between the bowl 3 and the orifice 5 in the air flow passage 2, the oil in the bowl 3 is sucked up to the top of the drip tube 6, and drips into the drip tube 6 from the drip hole 7 on the top surface of the drip tube 6. , is supplied from the supply hole 8 to the orifice 5 and mixed into the air.

Next, a mechanism for attaching and detaching the body 1, the bowl 3, and the bowl guard 4 will be explained.

The lower end of the body 1 has a circular inner peripheral surface,
A mounting cylinder 11 whose outer circumferential surface is a regular octagon and whose lower end is shaved to form a circular shape is formed, and four hooking parts 12 are arranged at angular intervals of 90 degrees on the edge side of the inner circumferential surface of this mounting cylinder 11. Four flanges 15 are protruded at 90 degree intervals on the outer periphery of a protrusion 14 provided slightly below the mouth edge of the bowl 3. Four flanges 16 are also formed on the outer periphery of the mouth rim at 90 degree intervals, and two protrusions 17 for positioning are provided on the lower surface of the protrusion 14 of the bowl 3. so that it is located between
Formed at 180 degree intervals, bowl guard 4
Two recesses 1 that fit into the above-mentioned protrusion 17 are provided on the edge of the mouth.
8 are similarly located between the flanges 16, 16 with an interval of 180 degrees, and furthermore, a rear end portion is formed at a position slightly below one of the recesses 18 on the outer peripheral surface of the bowl guard 4. A tongue piece 20 whose tip end is inclined in a direction away from the outer circumferential surface of the bowl guard 4 to the outside when pressed toward the center of the bowl guard 4 is integrally formed through an elastic bending piece 21. At the same time, two engaging grooves 23, 23, into which the tips of the tongue pieces 20 described above are fitted, are formed on the lip of the mounting tube 11 of the body 1 described above.
They are formed with an interval of 180 degrees between them.

Also, grooves 25 are formed at two of the four positions located between the flanges 15, 15 of the protrusion 14 of the bowl 3, which form an angle of 90 degrees with the positioning projection 17. , a fitting protrusion 26 having an inclined surface 27 on the bottom side of the bowl 3 is formed in each groove 25, and a flange 1 on the rim of the bowl guard 4 is provided.
Of the four locations located between 6 and 16, two locations make a 90 degree angle with the positioning recess 18.
Each elastic connection piece 29 is formed to protrude, and each elastic connection piece 2
9, a fitting hole 3 into which the above-mentioned fitting protrusion 26 is fitted;
Further, a slot 31 is formed that extends to the bottom side of the bowl guard 4 continuously from the fitting hole 30 so that the elastic connecting piece 29 can be easily elastically deformed.

Next, the procedure for attaching the bowl 3 will be explained.

First, when the bowl guard 4 is fitted to the outside of the bowl 3 with the elastic connecting piece 29 and the fitting protrusion 26 aligned, at the end of the fitting, the elastic connecting piece 2
9 is elastically deformed to form the inclined surface 2 of the fitting protrusion 26.
7 and enters into the groove 25, and when the flange 16 of the bowl guard 4 touches the flange 15 of the bowl 3, a fitting protrusion is inserted into the fitting hole 30 of the elastic connecting piece 29, as shown in FIG. The portion 26 is fitted in, and the positioning protrusion 17 and the recess 18 are fitted together, so that the bowl 3 and the bowl guard 4 are aligned with their respective flanges 15.
and 16 are coupled together in alignment with each other.

When the flanges 15 and 16 of the integrated bowl 3 and bowl guard 4 are inserted into the mounting tube 11 from between the hooking portions 12 of the body 1, the tip of the tongue piece 20 bends the elastic bending piece 21. When the bowl 3 and the bowl guard 4 are rotated by a certain angle after riding on the edge of the mounting tube 11, the collar 16 of the bowl guard 4 is hooked to the hooking part 12, and the bowl 3 and the bowl guard 4 are attached to the body 1. Attached to the tongue piece 20,
The tip of the bowl 3 and the bowl guard 4 are fitted into the engagement groove 23 of the body 1, and the rotation of the bowl 3 and the bowl guard 4 is prevented and the bowl guard 4 is held in the attached state.

On the other hand, when removing the bowl 3, push the rear end of the tongue piece 20 to remove its tip from the engagement groove 23, and then move the bowl 3 and bowl guard 4 so that the flanges 15 and 16 are located between the hooking part 12. When the bowl guard 4 is rotated to a certain point and then the bowl guard 4 is pulled, the flanges 15 and 16 slip out between the hooks 12, and the bowl 3 and the bowl guard 4 are removed together.

Further, by bending the elastic connecting piece 29 outward, the fitting protrusion 26 can be removed from the fitting hole 30, and the bowl 3 and the bowl guard can be separated.

As described above, in this embodiment, the bowl 3 and the bowl guard 4 can be integrally connected by fitting the fitting protrusion 26 into the fitting hole 30 of the elastic connecting piece 29. To simplify the removal work by being able to remove the guard 4 from the body 1 at once, and also to make the joining work itself easy because the two can be joined together by simply fitting the bowl guard 4 onto the bowl 3. Furthermore, since the bowl 3 and the bowl guard 4 can be separated, dirt on the outer peripheral surface of the bowl 3 can be easily removed.

In the above embodiment, if the fitting protrusion 26 and the fitting hole 30 of the elastic connecting piece 29 are tightly fitted in the circumferential direction, the bowl 3 and the bowl guard 4
Since the flanges 15 and 16 are positioned in an aligned state, the positioning protrusion 17 and recess 18 may be removed.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the present invention;
The figure is a sectional view thereof. A... Lubricator, 1... Body, 2... Air flow path, 3... Bowl, 4... Bowl guard,
11... Mounting tube, 12... Latching part, 15... Tsuba,
16... Tsuba, 20... Tongue piece, 23... Engagement groove, 2
6... Fitting protrusion, 29... Elastic connection piece, 30...
Fitting hole.

Claims (1)

[Scope of utility model registration request] In a bowl attaching/detaching device for pneumatic equipment, in which a bowl is removably attached to a body of pneumatic equipment such as a lubricator or a filter together with a bowl guard that fits over the bowl, the bowl is provided with a fitting protrusion, and the bowl is provided with a fitting protrusion. 1. A bowl attaching/detaching device for pneumatic equipment, characterized in that a guard is formed with an elastic connecting piece having a fitting hole into which the fitting protrusion fits.