JPH045833Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hose connector. More specifically, the present invention relates to improvements in hose connectors used when connecting and attaching a discharge hose to the discharge port of a submersible pump.

[Prior Art] Conventionally, hose connection means that use a fastener made of a linear object such as a wire or a band-like object such as a metal band are known.

This conventional hose connection means fits the connection end of the hose to an object to be connected, such as the discharge port of a submersible pump, which is usually formed in a cylindrical shape, and uses a tightening device made of a wire or strip. is wrapped around the connecting end of the hose from the outside, and the connecting end of the hose is tightened and fixed to the object to be connected using this tightening tool.

[Problems to be solved by the invention] Since the above-mentioned conventional hose connection means uses a fastener, there are problems such as damage to the connection end of the hose, wrinkles formed at the connection end of the hose, and water leakage. There are problems with connection accuracy.

In addition, since the fasteners are irreversibly deformed due to tightening, they are disposable and can only be used once.
This method has the problem of being uneconomical because a fastener must be prepared for each hose connection.

Furthermore, since the fastener must be tightened, the connection operation is troublesome.

The present invention was made to solve these problems, and its purpose is to provide a hose connector that has good connection accuracy and connection operability and can be used for a long period of time.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the hose connector according to the present invention includes a guide tube fixed to the main body on the side to be connected, and a guide tube that is slidable on the main body inside the guide tube. A connected tube provided in the body, a spring that presses the connected tube in the opposite direction of the main body, and a slit inserted between the guide tube and the connected tube so as to be movable back and forth and cut in the axial direction thereof. The guide tube and the connected tube are provided with tapered portions facing each other, which extend the diameter of the sleeve by retracting the sleeve by inserting the connection end of the hose into the connected tube and the sleeve. In this case, a means is adopted in which a sliding portion is provided which slides into contact with the tapered portion.

[Operation] According to the above-mentioned means, the connecting end of the hose can be connected to the pipe to be connected by the longitudinal expansion and contraction diameter of the sleeve due to the tapered part.
The hose can be connected by simply inserting it between the sleeves, and there is no tightening operation involved.
The purpose of improving connection accuracy and connection operability is achieved.

Furthermore, by pushing in the sleeve and moving it backwards, the hose can be pulled out and disconnected, thus achieving the purpose of enabling repeated use and long-term use.

[Example] Hereinafter, an example of the hose connector according to the present invention will be described based on the drawings.

In this embodiment, a structure consisting of a guide tube 1, a connected tube 2, a spring 3, and a sleeve 4 is shown.

The guide tube 1 is fixed to the main body 5 on the side to be connected, and has a threaded part 11 on the inner circumferential surface of the main body 5 side to be screwed into the main body 5, so that it has a fixing structure that can be attached to and detached from the main body 5, and the sleeve described below This makes it easy to assemble the 4th grade. The threaded portion 11 on the inner peripheral surface of this guide tube 1
A tapered portion 12 is provided on the opposite side, and a rotating protrusion 13 that protrudes radially outward is provided on the outer periphery of the tapered portion 12 .

The connected tube 2 is slidably provided on the main body 5 inside the guide tube 1 via a packing 6, and has a so-called bamboo shoot-shaped stepped taper at its tip into which the connecting end 7' of the hose 7 is fitted. A tapered part 22 having a relatively steep slope (compared to the tapered part 12 of the guide tube 1) follows the stepped tapered part 21.
It is equipped with Note that this tapered portion 22 is provided at a position facing the tapered portion 12 of the guide cylinder 1.

The spring 3 is installed between the connected tube 2 and the main body 5 to press the connected tube 2 in a direction opposite to the main body 5.

The slit 4 is interposed between the guide tube 1 and the connected tube 2 so as to be movable back and forth, and has a slit 41 cut in the axial direction on its circumferential surface. Also,
A flange-shaped stopper 42 is provided at its tip, and a chevron-shaped sliding portion 43 that slides into contact with the tapered portions 12, 22 is provided at its rear end. In addition,
The inner peripheral surface of this sleeve 4 is a surface 4 with small chevron-shaped protrusions.
It has become 4.

According to such an embodiment, when the guide tube 1, the connected tube 2, the spring 3, and the sleeve 4 are assembled, the connected tube 2 and the sleeve 4 are moved by the spring 3 to the guide tube 1.
The sleeve 4 is movable back and forth between the guide cylinder 1 and the connected cylinder 2 by the tapered parts 12, 22 and the sliding part 43. In addition,
In this assembly, by using the rotation protrusion 13, the guide tube 1 can be screwed and fixed easily and reliably.

Therefore, the connection end 7' of the hose 7 is connected to the connected tube 2,
When inserted between the sleeves 4, the connected tube 2 and the sleeve 4 integrally slide rearward against the spring 3, and due to the difference in inclination of both the tapered parts 12 and 22, the sleeve 4
The sliding portion 43 is guided by both tapered portions 12 and 22 and expands to expand the diameter of the sleeve 4. For this reason,
A gap is formed between the connected tube 2 and the sleeve 4,
The insertion becomes easy. After that, when the force for inserting the connecting end 7' of the hose 7 is released, the connected tube 2 and the sleeve 4 slide forward together due to the elastic pressure of the spring 3, and due to the difference in inclination of both the tapered parts 12 and 22, ,
The sliding portion 43 of the sleeve 4 is connected to both tapered portions 12 and 22.
The diameter of the sleeve 4 is reduced by being guided by the sleeve 4.
Therefore, the connection end 7' of the hose 7 is sandwiched between the connected tube 2 and the sleeve 4, and the connection is completed. Note that this clamping is carried out between the stepped taper portion 21 of the connected tube 2 and the surface 4 with small chevron-shaped protrusions of the sleeve 4.
4 creates a biting structure, resulting in strong connection strength.

Also, when the stopper 42 of the sleeve 4 is pushed in,
Since the diameter of the sleeve 4 is expanded and a gap is formed between the connected cylinder 2 and the sleeve 4, the connection end 7' of the hose 7 can be easily pulled out to disconnect the connection.

Therefore, connection and disconnection can be performed only by pushing and pulling the hose 7 and pushing the sleeve.
Extremely easy to operate. Further, since no tightening operation is involved, problems with connection accuracy such as damage to the connection end 7' of the hose 7 are eliminated. Furthermore, since irreversible deformation does not occur due to tightening, it can be used repeatedly and can be used for a long period of time.

[Effects of the invention] As described above, since the hose connector according to the invention does not involve a tightening operation, it has the effect of improving connection accuracy and connection operability. Moreover, according to this effect, connection failures and the like do not occur, and workability such as drainage work after connecting the hose is improved.

Furthermore, since it can be used repeatedly without causing irreversible deformation, it has the advantage of being able to be used for a long period of time. Moreover, this effect eliminates the need for fasteners that are expendable, resulting in the effect that the hose can be connected economically.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view showing an embodiment of the hose connector according to the present invention, and corresponds to the sectional view taken along line X-X in Fig. 2, Fig. 2 is a side view of Fig. 1, and Fig. 3 is the FIG. 3 is a cross-sectional view showing the connection operation shown in the figure. DESCRIPTION OF SYMBOLS 1... Guide tube, 12... Taper part, 2... Connected tube, 22... Taper part, 3... Spring, 41...
...Slit, 4...Sleeve, 43...Sliding part,
5...Body, 7...Hose, 7'...Connection end.

Claims (1)

[Scope of utility model registration request] A guide tube fixed to a main body on the connected side, a connected tube slidably provided on the main body inside the guide tube, a spring that presses the connected tube in a direction opposite to the main body, and a guide tube. , consists of a sleeve that is movable back and forth between the connected tube and has a slit cut in the axial direction, and the guide tube and the connected tube have a connecting tube at the connecting end of the hose, and a sleeve between the sleeves. A hose connection device in which taper portions are provided facing each other, and the sleeve is provided with a sliding portion that slides into contact with the taper portion, and the sleeve is provided with a sliding portion that slides in contact with the tapered portion.