JPH0570871U - Filling device for pipes - Google Patents

Abstract

(57) [Summary] [Purpose] The filling plug 3 is simply and efficiently driven into the open end 2 of the pipe 1. [Construction] The housing 12 is provided with a guide tube 19 for plugging, and a tapered hole 20 whose tip is slightly smaller than that of the plug 3 is formed at the tip of this guide tube 19. In addition, the driving rod is inserted in the guide tube 19.
A reciprocating drive means (15) for reciprocating the driving rod (16) is provided in the housing (12). [Effect] When the tip of the guide cylinder 19 is aligned with the opening end 2 of the pipe 1 and the driving rod 16 is advanced to drive the filling plug 3, the filling plug 3 is deformed to be smaller than the opening end 2 following the taper hole 20. Is pushed into the open end 2 from the tip of the guide cylinder 19,
The filling plug 3 can be driven into the open end 2 of the pipe 1 efficiently in a short time as compared with the conventional manual work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filling plug driving device for pipes, and more particularly, to a filling plug driving device for pipes that inserts a filling plug into an open end of a construction pipe used for a formwork or the like.

[0002]

[Prior Art]

 Conventionally, it has been known to insert a stopper into a pipe used for fixing when forming a formwork. This pipe has various cross-sectional shapes such as a round shape, a square shape, a polygonal shape, and a substantially spline shape, and is used when the pipe is assembled along a mold and a concrete is placed in the mold. It As described above, since the pipe is used at a site where concrete is poured, concrete may invade from the open end of the pipe during work, and the invaded concrete may remain in the pipe and harden. Then, the weight of the concrete makes the pipe heavier, for example, 4 meters, and if the entire 10 kg pipe is clogged with concrete, the weight will reach 20 kg. For this reason, there was a problem that a large amount of labor was required for the pipe assembly work at the next site to be used. In order to prevent this, the opening end of the pipe is closed.For example, using a hammer or the like, a filling plug made of plastic or the like slightly larger than the opening end is driven into the opening end of the pipe to close the opening end. Prevents the pipe from being clogged with concrete.

[0003]

[Problems to be solved by the device]

 In the above-mentioned prior art, since the worker manually pushes the filling plug into each pipe, it takes a lot of work time, and the filling plug larger than the opening end of the pipe is opened. Since it is press-fitted at the end, the work efficiency was extremely poor by manual work.

An object of the present invention is to provide a filling plug driving device for pipes which is excellent in work efficiency and which can easily insert the filling plug into the opening end.

[0005]

[Means for Solving the Problems]

 The present invention relates to a filling plug driving device for a pipe, in which a filling plug slightly larger than the opening end of the pipe is driven. The guiding pipe for the filling plug provided in the housing and the tip of the guiding pipe are provided. A taper hole whose tip is slightly smaller than that of the filling plug, a driving rod provided in the guide cylinder so as to be reciprocable, and a reciprocating driving means provided in the housing for reciprocating the driving rod are provided. It is a thing.

[0006]

[Action]

 Align the tip of the guide tube with the open end of the pipe, and advance the driving rod to drive the stuffing plug.When the stuffing plug is deformed to be smaller than the opening end following the taper hole, Be pushed into.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. Fig. 1 and Fig. 2 show a first embodiment of the present invention, in which 1 is a construction pipe, which is placed on site. The pipe 1 is used for supporting a concrete formwork (not shown), and the pipe 1 is a hollow round pipe made of metal or the like in this example. The filling plug 3 driven into the open end 2 of the pipe 1 is made of a soft plastic material having an elastic restoring force and has a pair of flat plate portions 4 and 5 slightly larger than the inner diameter of the pipe 1, The flat plate portion 4 is formed thicker than the other flat plate portion 5, and these flat plate portions 4 and 5 are connected by a cross-shaped connecting portion 6.

A driving device 11 for driving the filling plug 3 into the opening end 2 is provided with a reciprocating driving means 15 including a mechanism of a piston 13 and a cylinder 14 driven by compressed air or the like in a pistol type housing 12. A driving rod 16 for driving the filling plug 3 by striking it is connected to the piston 13. Reference numeral 17 is a trigger for operating the reciprocating drive means 15. The tip of the driving rod 16 projects from the housing 12 and reciprocates by the reciprocating drive device 15, and the driving rod 16 has a large diameter portion 18 at its tip. A guide cylinder 19 is screwed to the housing 12 around the driving rod 16, and a taper hole 20 whose inner diameter is slightly smaller than that of the filling plug 3 is formed at the front end of the guide cylinder 19. The outer diameter of the tip is smaller than the inner diameter of the pipe 1, and the tip side of the guide cylinder 19 is insertable into the pipe 1. An insertion hole 21 for inserting and arranging the filling plug 3 into the guide cylinder 19 is formed on the upper side of the guide cylinder 19, and the insertion hole 21 corresponds to the shape of the filling plug 3. Opening in a substantially H-shaped plane. Further, the driving rod 16 has such a length that the front end side of the large-diameter portion 18 can protrude from the front end of the guide cylinder 19 at the most distal end position.

Next, the operation of the above configuration will be described. First, the filling plug 3 is inserted from the insertion hole 21 into the guide tube 19 with the thin flat plate portion 4 being the front side, and the tip of the guide tube 19 is inserted into the pipe 1 and pressed against it. Set 11. Then, the trigger 17 is operated to drive the reciprocating driving device 15, and the driving rod 16 drives the filling plug 3 into the pipe 1. At this time, the filling plug 3 is pushed by the driving rod 16 and advances along the guide tube 19, and the filling plug 3 reaching the taper hole 20 is further pushed so that the flat plate portions 4 and 5 are moved to the taper hole 20. Following the elastic deformation, while being pushed into the open end 2 of the pipe 1 from the tip of the guide cylinder 19 in this state, the flat plate portions 4 and 5 of the filling plug 3 reaching the open end 2 are elastically restored by the pipe. It is pressure-bonded to the inner surface of 1 and fixed to the open end 2.

As described above, according to the present invention, the filling plug driving device 11 for filling the opening end 2 of the pipe 1 with the filling plug 3 slightly larger than the opening end 2 is provided in the housing 12. A guide cylinder 19 for a plug, a tapered hole 20 provided at the tip of the guide cylinder 19 and having a slightly smaller front end than the filling plug 3, and a driving rod 16 provided in the guide cylinder 19 so as to be reciprocable. Since the reciprocating driving means 15 for reciprocating the driving rod 16 provided in the housing 12 is provided, the filling plug 3 is efficiently attached to the opening end 2 of the pipe 1 in a short time as compared with the conventional manual work. You can type. Further, the filling plug 3 driven by the driving rod 16 is deformed to be smaller than the opening end 2 following the taper hole 20, so that the guide cylinder 19 can be driven into the opening end 2 smoothly.

Further, as an effect of the embodiment, the filling plug 3 is elastically deformed following the tapered hole 20 whose tip is slightly smaller than the filling plug 3, and in this state, the filling plug 3 is separated from the tip of the guide tube 19. After being pushed into the open end 2 of the pipe 1, the flat plate portions 4 and 5 are pressed against the inner surface of the pipe 1 by the elastic restoring force, whereby the filling plug 3 can be securely fixed to the open end 2. Further, since the tip of the driving cylinder 16 is formed to have a smaller diameter than the opening end 2 of the pipe 1, the tip side of the guide cylinder 19 is inserted into the pipe 1 at the time of driving. As a result, stable driving work can be performed, and the driving dimension is constant depending on the length of the driving rod 16, and the driving depth does not fluctuate and is always packed from the pipe end to a constant depth position. The stopper 3 can be driven in. Further, since the insertion hole 21 is formed on the side surface of the guide cylinder 19, it is not necessary to remove the guide cylinder 19 from the housing 12 when installing the filling plug 3, and the filling plug 3 can be easily inserted from the insertion hole 21. It can be placed inside.

FIG. 3 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and the details thereof will be omitted. This is a driving device for driving the stopper 3A into the stopper 1A. The stopper 3A to be used has flat plate portions 4A and 5A formed slightly larger than the open end 2A of the pipe 1A. The guide cylinder 19A attached to the housing 12 of the driving device 11 has a square cross section, and the tip of the guide cylinder 19A is formed with a tapered hole 20A having a square cross section whose inner area is slightly smaller than that of the filling plug 3. The tip end side of the guide cylinder 19A is formed so that it can be inserted into the pipe 1A, and the large diameter portion 18A of the driving rod 16 is formed in a square shape. Also in this example, the filling plug 3A can be driven into the open end 2A of the pipe 1A efficiently in a short time, and the same effect as that of the first embodiment can be obtained. The plug 3A can be easily driven into various shapes of the pipe 2A from the end of the pipe to a predetermined depth in a close contact state.

FIG. 4 shows a third embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. The filling plug 3 having round flat plate portions 4 and 5 slightly larger than the maximum opening size D of the pipe 1B is driven into 1B, and the same guide cylinder 19 as in the first embodiment is used. The tip of the cylinder 19 is formed so that it can be inserted into the pipe 1B. Also in this example, the filling plug 3 can be driven into the open end 2B of the pipe 1B efficiently in a short time, and the same action and effect as those of the first embodiment can be obtained. The flat plate portions 4 and 5 closely adhere to each other along the substantially corrugated and complicatedly shaped opening end 2B, and can reliably close the opening end 2B.

The embodiments of the present invention are not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, as the reciprocating drive device, various types such as a piston and a cylinder driven by hydraulic power or electricity as a power source, or an actuating rod by the elastic restoring force of a spring can be used. Further, the driving device of the present proposal can be used for plugging plugs of various shapes. Further, the plugs may have the same flat plate thickness.

[0015]

[Effect of the device]

 The present invention relates to a filling plug driving device for a pipe, in which a filling plug slightly larger than the opening end of the pipe is driven. The guiding pipe for the filling plug provided in the housing and the tip of the guiding pipe are provided. A taper hole whose tip is slightly smaller than that of the filling plug, a driving rod provided in the guide cylinder so as to be reciprocable, and a reciprocating driving means provided in the housing for reciprocating the driving rod are provided. Therefore, it is possible to provide a filling stopper driving device for pipes which is excellent in work efficiency and can easily push the stopper into the opening end.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a first embodiment of the present invention.

FIG. 3 is a sectional view of a pipe, a guide tube, and a stopper according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a pipe, a guide tube, and a stopper according to a third embodiment of the present invention.

[Explanation of symbols]

 1,1A, 1B Pipe 2,2A, 2B Open end 3,3A Filling plug 11 Driving device 12 Housing 15 Reciprocating drive device 16 Driving rod 19,19A Guide tube 20,20A Taper hole

Claims (1)

[Scope of utility model registration request] 1. A filling plug driving device for a pipe, which inserts a filling plug, which is slightly larger than the opening end, into the opening end of the pipe, the guide pipe for the filling plug provided in a housing, and the tip of the guiding pipe. And a taper hole whose tip is slightly smaller than that of the filling plug, a driving rod provided in the guide cylinder for reciprocating movement, and a reciprocating driving means provided in the housing for reciprocating the driving rod. A driving device characterized by being provided.