JPH0682284U - Connecting pin for pipe support - Google Patents

Abstract

(57) [Abstract] [Purpose] In order to integrate the connecting pins of the lower pipe and the upper pipe that make up the pipe support with the pipe support, the pin body was conventionally connected by chains, but when transporting the pipe support. Etc., the pin body is caught on another object,
The chain may be broken. The purpose is to eliminate such inconvenience. [Structure] The connecting pin 13 and the pin body 14 and the holding arm 1
5, the holding arm 15 is formed by an elastic band plate, and the base portion 18 of the pin body 14 is integrally connected to the central portion 17 of the holding arm 15,
The diameter of the holding arm 15 is equal to or larger than the width of the holding arm 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connecting pin with a pipe support that supports a formwork or the like in civil engineering, a construction site, or the like.

[0002]

[Prior art]

 As shown in FIG. 9, the pipe support is slidably inserted from the upper end of the lower pipe 1 to the lower end of the upper pipe 2, and is provided with a threaded portion 3 on the outer periphery of the upper end of the lower pipe 1. The pin body 7 of the connecting pin 6 is inserted into the vertical long hole 4 formed in the vertical direction and the radial hole 5 provided in the upper pipe 2, and the adjustment nut 8 fitted in the screw portion 3 is used to The lower part of the pin body 7 is supported.

In the above pipe support, when the handle 9 attached to the nut 8 is operated to raise the nut 8, the nut 8 raises the upper pipe 2 via the pin body 7. The load acting on the upper pipe 2 is supported by the lower pipe 1 via the pin body 7 and the nut 8 described above.

The pin body 7 has a chain 10 attached to the base thereof, and a retaining ring 11 attached to the end of the chain 10 is inserted into the upper pipe 2, and the retaining ring 11 is attached to the threaded portion 3 of the lower pipe 1. I hang it on the upper end of.

[0005]

[Problems to be solved by the device]

 The connecting pin 6 used for the pipe support as described above is composed of a pin body 7 and a chain 10 for holding the pin body 7 together. Therefore, in the unused state of the pipe support (the state of being stacked in the equipment warehouse, the state of being transported, etc.), the pin body 7 is in a state of being suspended by the chain 10. When transporting a large amount of such pipe supports, a number of them are lifted in a bundle by a forklift, etc., but at that time, the pin body 7 is lifted while being sandwiched between other pipe supports on the ground. , Which can cause the strand 10 to break.

Therefore, an object of the present invention is to eliminate the above inconvenience by allowing the pin body to be attached to the pipe support without using a chain.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, this invention inserts the lower end of the upper pipe into the lower pipe slidably from the upper end of the lower pipe, and provides a threaded portion on the outer circumference of the upper end of the lower pipe, which is formed on the threaded portion. Used for a pipe support in which the connecting pin is inserted into the vertical elongated hole and the radial hole provided in the upper pipe, and the lower part of the connecting pin is supported by the adjusting nut fitted in the threaded portion. In the connecting pin, the connecting pin is composed of a pin body and a holding arm, and the holding arm is formed in a curved state in which it holds more than half the circumference of the screw portion by an elastic band plate. The base of the pin body is integrally connected to the inside of the central portion of the holding arm, and the diameter of the pin body is formed to be equal to or larger than the width of the holding arm.

[0008]

[Action]

 Since the connecting pin having the above structure is attached to the pipe support by the elastic force of the holding arm, it does not cause any trouble during transportation. Also, when operating the nut to adjust the height of the pipe support, the holding arm slides freely around the outer circumference of the threaded portion. Also, if the pin body is pulled out together with the elastic force of the holding arm, the entire connecting pin is separated from the pipe support.

[0009]

【Example】

 The connecting pin 13 of the first embodiment shown in FIG. 1 comprises a pin body 14 and a holding arm 15. The holding arm 15 is formed of an elastic band plate, and is formed in a bent state that holds more than half the circumference of the threaded portion 3 (see FIG. 3) of the lower pipe 1, and both ends thereof are folded back outward. A guide unit 16 is provided. The central portion 17 of the holding arm 15 is formed in a flat shape, and the base portion 18 of the pin main body 14 is inserted inside the central portion 17 and integrated by caulking.

The pin body 14 extends longer than the guide portion 16 in the same direction as the holding arm 15 and is formed longer than the diameter of the lower pipe 1 (see FIG. 5). As shown in FIG. 2, the diameter of the pin body 14 is formed to be slightly larger than the vertical width of the central portion 17. This diameter may be as large as the width of the central portion 17, but it must be avoided that it is smaller than that width.

3 and 4 show how the connecting pin 13 is used. Since the configurations of the lower pipe 1, the upper pipe 2, and the nut 8 are the same as those of the conventional example shown in FIG. 9, the same parts are designated by the same reference numerals.

In the connecting pin 13, the pin body 14 is inserted into the elongated hole 4 of the lower pipe 1 and the hole 5 of the upper pipe 2 (see FIG. 5) in the same manner as in the conventional case, and at the same time, the guide portion of the holding arm 15 is inserted. 16 is applied to the outer peripheral surface of the screw part 3 and the pin body 14 is pushed in while the holding arm 15 is being expanded, the pin body 14 penetrates and the guide part 16 exceeds the maximum diameter part at the same time. Attached around 3.

When adjusting the height of the upper pipe 2, when the handle 8 is operated to rotate the nut 8, the nut 8 pushes up the pin body 14, and at the same time, the holding arm 15 integrated with the pin body 14 is provided. Slides on the outer peripheral surface of the screw portion 3 and rises.

The load acting on the upper pipe 2 is supported by the lower pipe 1 via the pin body 14 and the nut 8 as shown in FIG. In this case, the diameter of the pin body 14 is formed to be equal to or slightly larger than the width of the holding arm 15 as described above so that the holding arm 15 does not receive a load.

When the lower pipe 1 and the upper pipe 2 are disconnected from each other, the connecting pin 13 has its pin body 14 passed through the elongated hole 4 of the lower pipe 1, and the holding arm 15 is attached to the outer periphery of the screw portion 3. Fit in.

Next, in the connecting pin 13 of another embodiment shown in FIGS. 6 and 7, the eyebolt 19 is screwed into the pin body 14 from the outside of the central portion 17 of the holding arm 15, whereby the pin body 14 is screwed. 14, the holding arm 15 and the eyebolt 19 are integrated. In this case, it is convenient to attach and detach the eyebolt 19 by putting a finger on it.

In another embodiment shown in FIG. 8, the connecting plate 20 is fixed to the central portion 17 of the holding arm 15, and the pin body 14 is attached to the lower end of the connecting plate 20 so as to face inward. is there. In this case, the insertion position of the pin body 14 and the mounting position of the holding arm 15 are vertically different, but the function is not different from that described above.

[0018]

[Effect of device]

 As described above, in the present invention, the pin body is attached to the pipe support by the holding arm without using the chain, so that the inconvenience of the chain being cut during transportation of the pipe support is eliminated, Moreover, since the pipe support and the connecting pin always exist as one body, the work efficiency at the time of connecting can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a partially omitted enlarged sectional view of the above.

FIG. 3 is a partially omitted perspective view of a usage state.

FIG. 4 is a partially omitted cross-sectional view of a usage state.

5 is an enlarged sectional view taken along line VV of FIG.

FIG. 6 is a perspective view of another embodiment.

FIG. 7 is a partially omitted enlarged cross-sectional view of the above.

FIG. 8 is a perspective view of another embodiment.

FIG. 9 is a partially omitted front view of a conventional state of use.

[Explanation of symbols]

 1 Lower pipe 2 Upper pipe 3 Screw part 4 Long hole 5 Hole 6 Connecting pin 7 Pin body 8 Adjustment nut 9 Handle 10 Chain 11 Chain 11 Stop ring 13 Connecting pin 14 Pin body 15 Holding arm 16 Guide part 17 Center part 18 Base part 19 Eye bolt 20 connecting plate

Claims (1)

[Scope of utility model registration request] 1. A lower pipe is slidably inserted from an upper end thereof into a lower end of the upper pipe, and a threaded portion is provided on an outer periphery of an upper end of the lower pipe. The connecting pin is inserted into a radial hole formed in the pipe, and the connecting pin is used in a pipe support in which a lower portion of the connecting pin is supported by an adjusting nut fitted in the threaded portion. It is composed of a pin body and a holding arm, and the holding arm is formed in a bent state to hold more than half the circumference of the screw portion by an elastic band plate, and the pin is provided inside the central portion of the holding arm. A pipe support connecting pin, characterized in that the base of the main body is integrally connected, and the diameter of the pin main body is formed to be equal to or larger than the width of the holding arm.