JPS5919190Y2 - Fluid equipment connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of connections in pressure fluid equipment such as air filters and regulators.

Fluid pressure circuits formed by connecting fluid devices such as air filters, regulators, lubricators, etc. often require inspection and repair, so the structure of the connection parts of each of the devices must be easy to connect and disconnect. is desired, and conventional devices of this type generally have a connection structure suitable for that purpose.

However, even if the conventional connection structure of this type of device is easy to attach and detach, the inlet and outlet sides have the same form, so even if the connection ends are reversed, the connection is easy. This has disadvantages in that the normal operation of the fluid pressure circuit is hindered, and there is a risk of damaging the fluid equipment, which has a complex internal structure and is precise.

The purpose of the present invention is to provide a connection structure that allows devices of this type to be easily attached and detached from each other, and at the same time, to connect them without causing errors in the direction of fluid flow, thereby eliminating the drawbacks of the conventional devices. That's true.

The connection structure for a fluid device according to the present invention has a flat portion and a groove, or grooves having different shapes or intervals, vertically provided on one side of a joint end of a fluid device, and the other side has an arrangement opposite to the flat portion or groove. A flat part or a groove part having a different shape or spacing from the groove part is provided, and the fluid device has a flat part that engages with the flat part and a pair of protrusions that engage the groove part or two pairs of protrusions that differ in shape or spacing. Connecting fittings are used as a set of two, and after engaging the joining ends of the fluid equipment or vessels to be connected, applying and tightening the connecting fittings to both sides of the joint, thereby tightening the fluid. It is configured to connect devices to each other.

An embodiment of the present invention will be explained in detail with reference to FIG.

In FIG. 1, an air filter 1a, a regulator 1b, and a lubricator 1C are shown connected through a fluid passage.

Each device is an independent device that can be separated from the other, and the joint surfaces are formed into flat surfaces and are tightly joined, but the structure of the joint in each device is exactly the same, so The lubricator 1C will now be explained as an example of the device 1.

The device 1 has left and right joining surfaces 11 formed as parallel flat surfaces, and when the joining surfaces of adjacent devices are combined, the connecting ends of the fluid passages 12 fit together, creating a state of tight communication. is now available.

Connecting portions for adjacent equipment are provided at both ends of the joint surface 11.

This connection part forms a single connection part when two devices of the same type are combined adjacently,
Therefore, the left and right shapes to be joined must be completely symmetrical.

Further, the joint portions are formed at both ends of the left and right joint surfaces 11 of one device 1, that is, at the four corners.

Now, to explain the connection part provided on one side of the joint surface 11, the connection part is divided into upper and lower parts, the upper part is formed in the flat part 13, and the lower part is formed in the groove part 14. .

The groove portion 14 is a groove having a substantially ■-shaped cross section with groove lines extending in the vertical direction, and as is clear from FIG. 2, the inner groove wall is vertical.
Only the outer groove wall (on the flat surface 11 side) is formed to be inclined.

The form of this connection part is that the vertical relationship is the same on the entry side and the exit side, and it is simply provided in a symmetrical shape, but the connection part provided on the other side of the same joint surface 11 has a flat The vertical positional relationship between the part and the groove part is reversed so that the groove part 14' is provided on the upper side and the flat part 13' is provided on the lower side.

A connecting fitting 2 is combined with the connecting portion.

The connecting fitting 2 is engaged with the flat part 13 when the connecting surfaces 11 of the devices 1 are closely assembled together so as to collectively connect the connecting portions formed by the devices. A corresponding flat portion 21 and a pair of protrusions 2 that fit into the groove portion 14
2 are formed vertically adjacent to each other.

For connection, after joining the devices 1 as shown in Fig. 1, connect the connecting fittings 2 to the joints formed between adjacent devices, and insert the screws 3 into the holes 23 and the bolt grooves 1 of the devices.
5, the metal fittings fitted on both sides of the same joint surface are joined together.

The function of the connecting fitting 2 at this time is that, as shown in FIG.
It fits into the groove 14, 14' in the connection part to prevent the tendency of the devices to separate from each other.

Moreover, since the contact portion between the groove 14 and the protrusion 22 is an inclined surface, the deeper the protrusion 22 of the metal fitting 2 fits into the groove 14, the more
Screw 3 acts to increase the adhesion between devices.
By increasing the degree of tightness of the metal fittings on both sides, the degree of fitting of the metal fittings on both sides is further increased, leading to a reliable state of connection between the devices.

In the structure of the present invention, the vertical relationship between the plane part and the groove part is reversed on one side and the other side of the joint surface 11, but when rotated 180 degrees about the fluid passage 12 as the central axis, Since the positional relationship is the same, the shape of the connecting fitting 2 corresponding to the connecting part is the same, and only one type is sufficient. ) can be connected.

In addition, in the structure of the present invention, if the joint surfaces of devices to be connected are incorrectly combined, the planar portions and groove portions of adjacent devices at each connection portion will not align with each other, and
Since the plane portion and the groove portion are arranged diagonally, the joining metal fittings 2 cannot be combined, and therefore it is immediately possible to know that the connection is incorrect.

Note that the connecting fitting 2 used in the present invention is integrally formed with a leg part 24 having a mounting hole 25 as shown in FIG. It can also be configured as follows.

In the above-mentioned embodiment, the flat part 1 is used as the connecting part.
3 and the groove portion 14 have been described, but the planar portion 1
3, as shown in FIG.
Another groove part 16.16a with a different shape from the above is provided to distinguish the upper and lower parts, and at the same time, the winter protrusions 22a and 24a can accommodate this.
It is also possible to use a connecting fitting 2a having a diameter, thereby providing almost the same function as that of the above-mentioned embodiment.

Further, as shown in FIG. 6, the widths w and w' of the protrusions 18a and 18b defined by the grooves 17a and 17b may be made different, and the protrusions may not be vertically adjacent but separated. good.

As described above, according to the connection structure of the present invention, it is possible to easily connect and disconnect fluid devices, and also to accurately connect fluid devices to each other, and also to correctly guide the positioning state. It can be effectively used as a structure.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a connected state of a fluid device equipped with a connection structure according to the present invention in an exploded arrangement, Fig. 2 is a plan view of Fig. 1, and Fig. 3 shows a partially connected state. FIG. 4 is a perspective view showing another embodiment of the connecting fitting, and FIGS. 5 and 6 are partial perspective views showing other embodiments of the connecting portion. 1: Fluid device, 11: Joint surface, 12: Fluid passage, 13:
Plane part, 14: Groove part, 2: Connection fitting 1.21: Plane part,
22: Projection, 23: Drill hole, 24: Leg, 3: Screw.

Claims (2)

[Scope of utility model registration request] (1) One side of the joint end of a fluid device is provided with a flat part and a groove, or a groove with a different shape or spacing vertically, and the other side is provided with a groove and a flat part or with a shape opposite to the flat part or groove. Alternatively, grooves with different intervals are provided, and two connection fittings each having a flat part that engages with the flat part of the fluid device and a pair of protrusions that engage with the groove, or two pairs of protrusions that are different in shape or spacing. Use as a set,
After engaging the joint ends of the fluid devices to be connected, applying and tightening the connecting fittings to both sides of the joint,
A connection structure for fluid devices, characterized in that the fluid devices are connected to each other thereby. (2) The connection structure according to claim 1, which is a registered utility model, characterized in that a mounting leg is integrally formed on the back surface of the connection fitting.