JPS5942009Y2 - Oral irrigator tube connection structure - Google Patents

Description

[Detailed description of the invention] This invention consists of a storage tank that stores liquid that does not harm the oral cavity, a main body on which the storage tank is placed, and a suction system that sucks the liquid from the storage tank stored in the main body. a pump that energizes the
A tube connection for an oral irrigator that is connected to the pump via a tube and has a nozzle that squirts energizing liquid toward the oral cavity, and that cleans and cleans the teeth, prevents cavities, and massages the gums. Regarding structure.

The tube connection structure of a conventional oral irrigator was as shown in FIGS. 1 and 2.

First, the oral irrigator will be described. A storage tank A that stores liquid that does not harm the oral cavity is placed in a main body B, and a pump C that energizes the liquid is installed in the main body B.

The storage tank A has a discharge part protruding from the bottom surface 1a of the bowl part 1 that holds the liquid, and when placed on the main body B, the discharge part is inserted into the connection part 3a provided on the top surface of the cover 3 of the main body B. do.

The suction part 4 of the pump C is inserted into the connection part 3a from below, and the pump C sucks the liquid and energizes it.

Pump C is a reciprocating pump that generates pulsation and sends liquid to gripping section 7 via coiled flexible tube 6 connected to discharge section 5 .

A nozzle part 8 can be inserted into the grip part 7, and an intermittent jet stream is ejected from the nozzle part 8 toward the oral cavity.

Next, the connection structure of the tube 6 will be explained.

One end of the tube 6 is attached to a grip part 5 provided at the tip of the discharge part 5.
A collar 9 having a truncated conical shape is fitted over the collar 9 to prevent the tube 6 from easily coming off the joint part 5a.

Furthermore, since the tube 6 is tightened to the joint portion 5a by the force 2-9, leakage is prevented.

The tube 6 fitted into the discharge part 5 is protected from heat by covering it with a protective tube 11 until it reaches the frame 10 of the main body B, and the majority of the tube 6 passes through the punch 12 fitted into the hole of the frame 10 to protect the frame. Extends to the outside of the body 10.

The extended tube 6 is coiled and stored in the storage space 13 of the main body B, and its end is connected to the grip 7.

However, according to the above-mentioned conventional tube connection structure, when the nozzle is used, the tube is pulled out together with the gripping part, so the swinging stress applied to the tube is extended to the connection part with the pump, which accelerates the aging of the tube. The tube may come off easily and cause fluid leakage.

Furthermore, since a protective tube is required within the main body, the number of parts increases, assembly is time-consuming, and repairs cannot be carried out quickly.

The present invention aims to solve the above-mentioned drawbacks, and its object is to provide a tube connection structure for an oral irrigator in which a pump and a tube are connected using a dedicated joint.

FIG. 3 is a diagram showing a tube connection structure of an oral irrigator, and an embodiment of the present invention will be explained based on this diagram.

Since the oral irrigator is basically the same as shown in FIGS. 1 and 2, a tube connection structure having a different configuration will be described in detail below.

The reference numeral indicates a reciprocating pump, and its discharge portion 21 and a coiled tube 22 are connected by a joint 23.

The pump D is housed and held in the main body E such that the discharge part 21 is located near the frame 24 of the main body E, and the joint 23 connects the discharge part 21 and the tube 22 and connects the frame 24. It passes through and is fixed to the frame 24 as it is.

FIG. 4 is a sectional view of the joint 23.

The joint 23 is provided with a joint part 26 that is inserted into the discharge part 21 of the pump D via a packing 25.

An elastic locking arm 27 is provided from the outer surface of the central portion of the joint 23 so as to cover the outer surface of the joint portion 26.

A plurality of locking arms 2T are formed by providing a plurality of slits in the central axis direction from one end of a cylinder.

A gap is provided between the locking arm 27 and the joint portion 26, and the tip of the discharge portion 21 is inserted therein, and the tip claw portion 2 of the locking arm 27 is inserted into the gap.
7a is engaged with a recess provided on the outer surface of the discharge portion 21 to prevent extraction.

The collar portion 28 protruding from the outer surface of the intermediate portion of the joint 23 is
3 from entering inside the frame 24, and is fitted into the recess of the frame 24.

The portion penetrated outward from the frame body 24 is a bent portion, and a tube connecting portion 29 is provided at the tip thereof.

The tube connecting portion 29 has an engaging convex portion 29a, and the tube 22 is fitted into the tube connecting portion 29, and a fixing member 30 is fitted onto the tube 22 to prevent it from being pulled out.

Then, from the joint part 26 of the joint 23 to the tube connection part 29
A communication hole 31 is bored through which the liquid passes.

The tube 22 is formed into a coil shape and is stored in the storage space 32 of the main body E, and the other end of the tube 22 is connected to the nozzle F.

Thus, the joint part 26 of the joint 23 is connected to the discharge part 21 of the pump D.
When inserted inside, the locking arm 27 comes to cover the discharge part 21, the tip claw part 27a engages with the recess of the discharge part 21, and the joint 23 is firmly connected, and at the same time, the gasket 25 prevents liquid leakage. do.

Further, the joint 23 is fixed to the frame 24, the tube 22 is connected to the tube connection part 29, and the energizing liquid is supplied to the nozzle F.
sent to.

Therefore, according to the present invention, the pump and the tube are connected by a special joint, and the joint is fixed to the frame.
Even if the nozzle is pulled out during use and torsional stress is applied to the tube, the stress applied to the tube is not directly transmitted to the pump, and deterioration of the tube can be prevented.

Further, there are advantages in that assembly including tube attachment is facilitated, and repairs can be carried out quickly.

[Brief explanation of the drawing]

Figure 1 is a structural sectional view of a conventional oral irrigator, Figure 2 is a plan view showing the internal structure of the main body excluding the storage tank and cover, and Figure 3 is a cross-sectional view of the structure of a conventional oral irrigator.
The figure is a diagram of a tube connection structure of an oral irrigator showing an embodiment of the present invention, and FIG. 4 is an enlarged sectional view of a joint. D...Pump, E...Body, 21...
...Discharge part, 22...Tube, 23...
...Joint, 24...Frame, 25...
・Putskin, 26...Joint part, 27...
Locking arm, 27a...Tip claw portion, 29...
・Tube connection part, 31... Distribution hole.

Claims (1)

[Scope of utility model registration request] A liquid storage tank, a main body on which the storage tank is placed, a pump housed in the main body that suctions and energizes the liquid from the storage tank, and a pump connected to the pump via a tube to supply the energizing liquid. In the oral cavity irrigator, the pump is installed such that the discharge part thereof is located near the frame of the main body, and the discharge part and the tube are passed through the frame. The connection is made by a fixed joint, and the joint has a joint part that is inserted into the discharge part through a gasket, and an elastic locking arm is provided to cover the outer surface of the joint part, and the distal end claw part is provided. The discharge part is removably locked on the outer surface of the discharge part, the outside of the frame is made into a bent part, and a tube connection part is provided at the tip thereof, and a flow hole is bored from the joint part to the tube connection part. Oral irrigator tube connection structure.