JP3639777B2 - Structure of the connecting part of the pipe connector in the greenhouse - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
More particularly, the present invention relates to a pipe connector that allows the angle of the pipes constituting the framework of the greenhouse to be freely adjusted, and more particularly to a pipe connector in a greenhouse that prevents loosening of bolts and nuts of the connector. Is related to the structure of
[0002]
[Prior art]
The connecting portion of the conventional pipe connecting tool of a greenhouse is such that a bolt insertion hole is formed in the connecting piece facing one of the pipe holding bodies and the connecting piece facing the other pipe holding body so that both pipe holding bodies are connected. The bolt insertion holes on one side are aligned and tightened with bolts and nuts.
[0003]
[Problems to be solved by the invention]
The pipe joint that connects the pipes that make up the framework of the greenhouse is adjustable in angle. The pipe vibrates when the greenhouse receives wind pressure. It often happens to drop out with the progress of.
Also, if the bolt insertion hole formed in the connecting piece of the pipe connector has a size larger than the diameter of the screw shaft of the bolt, it can be easily inserted. Although it is easy to loosen, it is inconvenient to insert, but the current situation is that the bolt insertion hole has a size that just fits the screw shaft.
[0004]
In view of the above, the present invention makes it possible to make a strong connection in which the screw of the connecting portion of the pipe connector does not loosen due to vibration or the like, and allows the bolt to be easily inserted into the bolt insertion hole. The structure of the connecting part of the pipe connector is provided.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the structure of the present invention is provided with an opening that is opened apart from one mouth end to the other mouth end on one side of the cylinder, and is tightened in a direction to close the opening. The connecting part having a bolt insertion hole is opposed to the holding part body that holds the outer surface of the pipe with a gap, and one pipe holding body and the other pipe holding body are angled by bolts and nuts. In the pipe connector that is adjustably connected, a concave groove that is concentric with the bolt insertion hole is provided around the bolt insertion hole on either the front surface or the back surface of the connection piece. A protrusion corresponding to the groove is formed on the other surface of the connecting piece, and the groove and protrusion of the connecting piece that overlap when the pipe is connected are fitted.
[0006]
Further, in the structure of the connecting portion of the pipe connector in the greenhouse according to the first aspect, the bolt insertion hole is preferably a hole having a size that allows the bolt shaft to be inserted with a margin.
Further, in the structure of the connecting portion of the pipe connector in the greenhouse according to claim 1 or 2, it is preferable that the cross section of the concave groove is substantially V-shaped.
[0007]
Moreover, in the structure of the connecting part of the pipe connector in the greenhouse according to claim 1, both pipe holders are connected laterally continuously to both ends of the opening of the holding part body. It is characterized in that the pieces are provided so as to face each other.
Further, in the structure of the connecting portion of the pipe connector in the greenhouse according to claim 1, one pipe holding body is laterally connected to both end portions of the opening portion of the holding portion main body. The connecting piece protrudes oppositely with a gap, and the other pipe holder has a connecting piece protruding opposite to the opening end side of the holding part body. It has the screwing part which protruded to the side of the opening part of this.
[0008]
In the present invention having the above configuration, if the pipe insertion hole of the connecting piece of one pipe holding body and the connecting piece of the other pipe holding body are matched, the concave groove or the ridge of the connecting piece of one pipe holding body Since the protrusions or grooves of the connecting piece of the other pipe holder are fitted, a strong connection is obtained if both connecting pieces are fastened with bolts and nuts in the fitted state.
Further, since the connecting piece is provided opposite to the holding part main body at a distance by this fastening, the opening of the holding part main body is fastened in the closing direction and the pipe is held.
[0009]
In addition, the concave groove and the ridge are concentric with the bolt insertion hole and have the same diameter, so the connecting piece can be rotated with the inserted bolt as a shaft and the concave groove and the ridge are fitted. Can be connected to an angle.
[0010]
In addition, since the concave groove and the ridge are fitted, the bolt insertion hole can be secured without loosening even if the bolt shaft has a sufficient size to allow the bolt shaft to be inserted, and the bolt can be easily inserted into the bolt insertion hole. Become. Further, if the cross section of the concave groove is formed in a substantially V shape, the fitting is sure and the fixing is strong.
[0011]
Further, the pipe holders of claim 4 are both holders having the same structure and can be attached to any part of the pipe, and the pipes are clamped and connected by tightening the connecting pieces.
Further, in the pipe holder of claim 5, one pipe holder is the same as the holder of claim 4, but the other holder is a holder that holds the end of the pipe, and the connecting piece is held. It is provided and connected to one mouth end side of the body part.
And the screw stop part which clamps a holding | maintenance part main body separately from the connection piece is provided in the side of the opening part.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the structure of the present invention will be described with reference to the drawings.
1 is a perspective view showing an embodiment of the structure of the present invention, FIG. 2 is a partially enlarged cross-sectional view of the same, and FIG. 3 is a front view showing a use state of the same. In FIGS. In the figure, reference numeral 1 denotes a pipe connector for connecting two pipes so that the angle can be adjusted by one pipe holder 2A and the other pipe holder 2B.
[0013]
Both pipe holders 2A and 2B have the same configuration, and the pipe holders 2A and 2B are short cylinders having a circular cross section, extending from one mouth end to the other mouth end on one side. The holding part main bodies 4A and 4B provided with the openings 3A and 3B, and the connecting pieces 5A, 5A, 5B and 5B are spaced laterally from the opening parts 3A and 3B of the holding part main bodies 4A and 4B. And projecting in opposition.
[0014]
Bolt insertion holes 6A and 6B are formed in the connecting pieces 5A and 5B, respectively. The bolt insertion holes 6A and 6B are formed in such a size that the bolt shaft can be inserted with a margin.
Then, concave grooves 7A and 7B having a substantially V-shaped cross section concentric with the bolt insertion holes 6A and 6B are formed on the front side of the connection pieces 5A and 5B around the bolt insertion holes 6A and 6B. On the back side, the concave grooves 7A and 7B are respectively formed with convex ridges 8A and 8B having a cross section having the same diameter as the concave grooves 7A and 7B. The grooves 7A and 7B may have a circular cross section.
[0015]
Therefore, if the connecting pieces 5A and 5B of both pipe holding bodies 2A and 2B are overlapped with each other and the bolt insertion holes 6A and 6B are matched, the connecting pieces on one side facing each other are fitted with the convex groove 8A in the concave groove 7B. Then, the connecting strips on the opposite side are fitted with the convex strips 8B in the concave grooves 7A (FIG. 2).
Then, if the bolt 9 is inserted into the bolt insertion holes 6A and 6B and the nut 10 is screwed together, both the pipe holding bodies 2A and 2B rotate around the bolt 9 and the angle can be freely adjusted. Then, by tightening the nut 10, the opening portions 3A and 3B are narrowed in the holding portion main bodies 4A and 4B, and the outer surface of the pipe is held in the circumferential direction.
[0016]
FIG. 3 shows a gate-shaped arch pipe 11 having a circular cross-section that constitutes the framework of the greenhouse with one pipe holder 2A of the connector 1, and holds a vertical pipe 12 or a horizontal pipe 13 with the other pipe holder 2B. Shows the case.
In the figure, 14A and 14B are notched windows provided on the outer periphery of the holding part main bodies 4A and 4B, and 15A and 15B are provided from the outer periphery of the holding part main bodies 4A and 4B to part of the connecting pieces 5A and 5B. It is a reinforcing rib.
[0017]
Next, FIG. 4 is a perspective view showing an embodiment of the pipe connector of claim 5, and the same or corresponding portions as those in FIGS. 1 to 3 are denoted by the same reference numerals.
Since one pipe holder 2A of this pipe connector 1 has the same configuration as before, description thereof is omitted.
The other pipe holding body 2B has a cylindrical shape with a circular cross section, and one opening portion 3B is provided on a holding portion main body 4B provided with an opening portion 3B extending from one mouth end portion to the other mouth end portion on one side. A screw stopper 20 projecting sideways is provided on the side, and the connecting piece 5B, 5B is connected from both sides continuously from the mouth end by slightly narrowing the mouth end on one mouth end side of the gripper body 4B. Protrusively facing each other at an interval.
[0018]
In the screwing portion 20, a bolt 21 and a receiving portion 23 of a nut 22 are provided opposite to each other at both ends of the opening 3B with a gap therebetween.
Then, by fastening the bolt 21 and the nut 22, the end portion of the pipe 24 held by the holding unit main body 4 </ b> B is clamped and held.
The connecting piece 5B is provided with bolt insertion holes 6B. A concave groove 7B concentric with the bolt insertion hole 6B is formed around the bolt insertion hole 6B on the front side of the connecting piece 5B, and the back side of the connecting piece 5B is a convex strip having the same diameter as the concave groove 7B. 8B is formed correspondingly.
[0019]
Therefore, if the connecting pieces 5A and 5B of both the pipe holding bodies 2A and 2B are overlapped to match the bolt insertion holes 6A and 6B, the groove 7A and the protrusion 8B are fitted.
[0020]
【The invention's effect】
According to the present invention, the connecting portion of the pipe connector has a strong connection between the connecting piece of one pipe holding body and the connecting piece of the other pipe holding body by fitting the concave groove and the ridge. Even if the pipe vibrates, the vibration does not damage the screw or loosen the screw, thereby preventing the bolts and the like from falling off.
In addition, since the coupling is strong, the bolt insertion hole can be a hole having a size that allows the bolt shaft to be inserted with a sufficient margin, so that the bolt can be easily inserted and the working efficiency is further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the structure of the present invention.
FIG. 2 is a partially enlarged sectional view showing an embodiment of the structure of the present invention.
FIG. 3 is a front view showing a use state of the structure of the present invention.
FIG. 4 is a perspective view showing a usage state of the structure of the present invention according to claim 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pipe connection tool 2A, 2B Pipe holding body 3A, 3B Opening part 4A, 4B Holding part main body 5A, 5B Connection piece 6A, 6B Bolt insertion hole 7A, 7B Groove 8A, 8B Convex strip 9 Bolt 10 Nut 20 Screw stop part 21 Bolt 22 Nut 23 Receiving part 24 Pipe

Claims (5)

Opening is provided that distract I negotiations on one side of the tubular from one mouth end to the other of the mouth end, clamping body for clamping the outer surface of the pipe by tightening in the direction of closing the opening In addition, in a pipe connector in which one pipe holding body and the other pipe holding body, which are provided with connecting pieces having bolt insertion holes facing each other at an interval, are connected with bolts and nuts so that the angle can be adjusted. In addition, a concave groove concentric with the bolt insertion hole is provided around the bolt insertion hole on either the front surface or the back surface of the connection piece, and this concave groove corresponds to the concave groove on the other surface of the connection piece. A structure of a connecting part of a pipe connector in a greenhouse, wherein a protruding groove is formed, and the groove of the connecting piece that overlaps when the pipe is connected and the protruding line are fitted.   2. The structure of a connecting portion of a pipe connector in a greenhouse according to claim 1, wherein the bolt insertion hole is a hole having a size that allows the bolt shaft to be inserted with a margin.   The structure of the connecting portion of the pipe connector in a greenhouse according to claim 1 or 2, wherein the groove has a substantially V-shaped cross section.   The plastic house according to claim 1, 2 or 3, wherein both pipe holders are provided with connecting pieces projecting laterally continuously from both ends of the opening of the holder main body. The structure of the connecting part of the pipe connector.   One pipe holder is connected to both ends of the opening of the holding part main body so that the connecting pieces project laterally and face each other with a gap, and the other pipe holding body is one end of the holding part main body. 5. The connecting piece according to claim 1, wherein the connecting piece protrudes from the side of the opening of the holding part main body and protrudes to the side of the holding part main body. Of the connecting part of the pipe connector in the plastic greenhouse.

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