JPH03239890A - Pipeline connecting method of drive type device - Google Patents

Abstract

PURPOSE:To prevent the damage of a connected pipeline by vibration by providing a mounting flange plate on a connecting packing fitted onto a connecting cylinder part, screwing the flange plate to the mouthpiece of the connected pipeline, and interposing the connecting packing in the space part between the base and the connecting cylinder part and between the flange plate and the connecting cylinder part. CONSTITUTION:Connecting cylinder parts 11, 11 for pipeline connection are provided on an inlet part 1a and an outlet part 1b, and pipelines are connected to these parts. Flange plates F are fitted onto the connecting cylinder parts 11, connecting packings P having rings 13 fitted therein are forcedly fitted thereto, and C rings 12 are fitted to the recessed channels of top end parts of the connecting cylinders 11. The mouthpieces 2 of connected pipelines 22 are screwed to the flange plates F by screws N, N, and the mouthpieces 2 of the connected pipelines 22 are connected to the connecting cylinder parts 11 through the connecting packings P and flange plates F. Consequently, the vibration transmitted to the connected pipelines and also noise are moderated, and the connected pipelines are never damaged by vibration.

Description

Detailed Description of the Invention [Field of Application and Summary of the Invention] The present invention relates to a drive-type device housed in piping, particularly a drive-type device in which a motor is provided as a drive source for a device such as a flow rate regulating valve or a pump. This relates to a pipe connection method for connecting a device to the mouthpiece of a pipe to be connected, and prevents vibrations caused by the drive of the motor from directly reaching the pipe to be connected, reduces noise caused by the vibration, and prevents damage to the pipe. It is intended to prevent

[Prior art and its problems] Conventionally, in order to connect a drive type device to a connected pipe, a fourth step is required.
As shown in the figure, an O-ring (lO) is interposed in the fitting part between the connecting cylinder part (11) of the drive type device and the base (2) of the connected pipe (22) to ensure airtightness of the joint part. The connecting cylinder portion and the cap are directly connected to each other with screws (N) (N) to connect them in a communicating state.

In this device, the connecting tube (11) of the drive type device and the cap (2) of the connected pipe (22) are mechanically coupled, so vibrations caused by the motor are directly transmitted to the pipe via this coupling. is transmitted to. Therefore, this vibration sound is amplified in the piping route and inside the casing, which is unpleasant to the ears, and there is also the disadvantage that the piping is easily damaged by long-term vibration.

[Technical Problem] The present invention is directed to a "piping connection method for a drive-type device inserted into piping" in which the drive-type device The technical challenge is to prevent the vibrations from directly acting on the connected piping.

[Technical Means] The technical means of the present invention taken to solve the above-mentioned technical problem is "to tightly fit a connecting gasket (P) around the connecting cylinder part (11) for connecting the piping of the drive type device". To attach this connection gasket (P), equip it with a flange plate (F), screw the flange plate (F) and the cap (2) at the end of the connected pipe (22), and attach the connection gasket (P). P)
The entire gap between the inner periphery of the cap (2) and the outer periphery of the connecting cylinder part (11), and the flange plate (F) and the connecting cylinder part (
11).

[Action Co. The above technical means of the present invention operates as follows.

The connecting gasket (P) fitted onto the connecting tube (11) of the drive type device is provided with a flange plate (F), and the flange plate (F) is provided with a base (2) at the end of the connected pipe (22).
), the drive type device and the connected piping are not directly connected. Furthermore, the connection gasket (
P) is configured to be interposed in the entire gap between the connecting cylinder part (11) and the cap (2), so the vibration of the drive type device is absorbed to some extent by the connecting gasket (P), and the connected gasket (P) The vibrations transmitted to the pipe (22) will be alleviated.

[Effect Co. Since the present invention has the above configuration, it has the following unique effects.

The vibration from the drive type device is absorbed to some extent by the connecting gasket (P), and the vibration transmitted to the connected piping is alleviated.
The noise caused by the vibration is also alleviated, and there is no damage to the connected piping due to the vibration.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

The present invention is implemented as a drive type device in an electric flow rate regulating valve. As shown in Fig. 1, this flow rate adjustment valve is of the type that adjusts the flow rate by adjusting the opening degree of a rotary valve (5) inserted between an inlet part (La) and an outlet part (lb). The rotary valve (5) is operated by a servo motor (M).
is driven to adjust the flow rate, and the inlet section (la
) and the outlet part (lb) are provided with connection cylinder parts (11) (11) for piping connection, respectively, and each connection cylinder part (
lx) The upstream piping and downstream piping are connected to (ll), respectively.

The connection packing (P) of this embodiment is an annular body made of an elastic material, and its inner diameter is dimensioned so that it tightly fits on the outer periphery of the connection cylinder part (11). A groove (3) is formed along the surface, and a recess (30) is formed on the inner peripheral surface near the other end.

The flange plate (F) is externally fitted into the groove (3) of the connection gasket (P), and the ring (13) is internally fitted into the recess (30) to connect the three, and this assembly is completed. , the connecting cylinder part (11) is forcibly fitted onto the connecting cylinder part (11) so that the groove (3) is closer to the apparatus than the recessed part (30).
) The C-ring (12) is externally fitted into the groove formed near the tip of the ring (12). As a result, the connecting gasket (P) is attached to the outer circumferential surface of the connecting cylinder portion (11) in such a manner that it cannot be removed.

As shown in FIG. 2, the flange plate (F) is a substantially elliptical plate-shaped body with screw holes (4) near the edge of its long diameter.
(4) is formed, and the hole (40) in the center thereof is set in a dimensional relationship that tightly fits into the groove (3) of the connection packing (P).

In this way, the cap (2) of the pipe to be connected (22) is inserted into the threaded hole (4) (4) of the flange plate (F) provided in the connection gasket (P) which is tightly fitted onto the connection tube (11). ) with the screws (N) (N), the connected pipe (22
) of the cap (2) is attached to the connecting cylinder (11) with the connecting gasket (P).
) and the flange plate (F).

At this time, the outer diameter of the connection gasket (P) is the same as that of the cap (2).
Since the dimensional relationship is set to approximately match the inner diameter of the connecting pipe (22), the cap (2) of the connected pipe (22)
) is screwed to the flange plate (F) in such a manner that it tightly fits into the connecting gasket (P). Moreover, the connecting gasket (P) is made of an elastic material such as rubber, and has a raised portion (14) formed in a predetermined area on its outer surface as shown in FIG. (
When fitting the cap (2) of 22) onto the connecting gasket (P), this protrusion (14) is forcibly suppressed, and together with the elastic return force of the protrusion (14), the cap (
2) is tightly fitted onto the connecting gasket (P). Therefore, the connecting tube portion (11) and the connected pipe (22) are connected in a tighter fit than in the conventional case where they are directly connected.

In particular, in this embodiment, the cap (2) is shaped like a bag,
When the cap (2) and flange plate (F) are screwed together,
Since the disc-shaped portion (PO) interposed between the ring (13) and the flange plate (F) is compressed, the airtightness of the connection portion is further improved.

This connection gasket (P) is connected to the inlet portion (1a) of the flow rate regulating valve.
) and the outlet part (lb).
) (tt) in the same manner, whereby both the upstream piping and the downstream piping are attached to the flow rate regulating valve in a tight fit state, and transmission of vibrations generated in the motor etc. can be reliably prevented.

In this example, it was used as a flow rate adjustment valve, but
Needless to say, it can also be used for solenoid valves, electric pumps, etc.

Further, in the above embodiment, the rotary valve (5) is configured to include a slit (S) for adjusting the flow rate, and in this case, the sound of water passing through this slit (S) is large. However, the transmission of this type of sound to the water circuit can also be blocked.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an embodiment of the present invention, Fig. 2 is a flange plate (
F) explanatory diagram, Figure 3 is an explanatory diagram of the connection gasket (P),
FIG. 4 is an explanatory diagram of a conventional example. 11)...Connecting cylinder part 2)...Best 22)...Connected pipe F)...Flange plate P)...Connecting gasket

Claims (1)

[Claims] In piping fittings for drive-type devices inserted into piping,
A connecting packing (P) is tightly fitted onto the connecting tube (11) for connecting piping of the drive type device, and this connecting packing (P) is provided with a mounting flange plate (F). ) and the cap (2) at the end of the connected pipe (22).
) and screw the connection packing (P) onto the cap (2).
) and the entire gap between the inner circumference of the connecting tube (11) and the outer circumference of the connecting tube (11), and a piping connection method for a drive type device interposed between the flange plate (F) and the connecting tube (11).