JPS62209292A - Connecting structure of hume pipe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a connection structure for hume pipes used in waterworks, sewerage, etc.

[Prior Art] Conventionally, a water pipe made of concrete has been used as a water pipe or a water supply pipe.

That is, these pipes are formed by connecting a plurality of hume pipes at their ends and making them continuous.

Conventionally, there are various methods of connecting the hume tubes for connecting the ends of the hume tubes, such as those shown in FIGS. 8 to 10.

FIGS. 8 to 1O are partially cutaway front views showing conventional hume pipe connection structures, respectively.

Huyum's canal lO shown in Fig. 8 has one end? The outer diameter of B11A is set to Di, which is the same as the outer diameter of the straight pipe part of the hume pipe 10, and the outer diameter of the other end 11B is set to D2, which is larger than DI.
It is said that Further, the inner diameter of the other end portion 11B is set to D3, which is larger than the outer diameter of the straight pipe portion. The two hume pipes 10 are connected by inserting one end 11A of the other hume pipe 10, whose outer diameter is Di, into the other end llB of one of the hume pipes 10 whose inner diameter is D3. be exposed. One end 11A of the other hume tube 10 to be inserted
A ring member 12 made of an elastic sealing material such as rubber or elastic resin is interposed between the outer circumferential portion of the fume tube 10 and the inner circumferential portion of the other end portion 11B of one of the fume tubes 10. The interposition of the ring material 12 is performed when inserting the ring material 12 into the other end 11B of one end llA.
This is done by positioning the ring material 12 on the outer periphery of the other end 11B. In this way, each hume pipe lO is buried underground with a plurality of hume pipes lO connected,
For example, it will be used as water supply or water supply.

The humid tube 13 shown in FIG. 9 has each end 14A, 14
The outer diameter of the pipe B is set to D4, which is slightly smaller than the outer diameter D1 of the straight pipe section.
It is said that To connect the two fume pipes 13, the ends 14A and 14B of the two fume pipes 13 are brought into contact with each other, and a ring-shaped sealing band is fitted around the outer periphery of the joined ends 14A and 14B. This is done by It is fitted externally.

A protrusion 16 is formed on the inner periphery of the sealing band 15 to fit into the outer diameter portion of the abutted pipe D4. The protrusions 16 of the sealing band 15 are designed to seal the abutting portions of the humid tubes 13. Further, two rubber bands 17A and 17B are wound around the circumference of the seal band 15 that is fitted onto the outside.

Among the rubber bands 17A and 17B, one rubber band 17A is wound around the end 14A of one of the fume tubes 13 to securely tighten the seal band 15 to the end 14A. The other rubber band 17B is wound around the end 14B of the other fume tube 13 to securely tighten the seal band 15 to the end 14B. The plurality of hume pipes 13 connected in this manner are buried underground in the same manner as the hume pipe 10 shown in FIG. 8, and are used as a water supply or a water supply system.

The hume tube 18 shown in FIG. 10 is entirely straight, and the outer diameter of the tube at each end 19A, 19B is DI. The two fume pipes 18 are connected to the two fume pipes 1
This is done by abutting the ends 19A, 19B of the two ends 19A, 19B, and covering the outer periphery of the abutted ends 19A, 19B with a sealing band 20. A mortar material 2 is placed between the inner periphery of the sealing band 20 and the outer periphery of each end 19A, 19B.
1 is filled, thereby reliably sealing both abutting portions and connecting the hume pipes 18 to each other.

[Problems to be Solved by the Invention] However, among the connection methods shown in FIGS. 8 to 10 above, the method shown in FIG.
It is necessary to insert A into the other end 11B, and it is necessary to reliably position the ring material 12 on the outer periphery of the other end 11B during the insertion. Positioning of each end 11A, 11B and ring material 1 for this insertion work
2 positioning is considered troublesome, and these
The connection work for 6 to was considered to be time-consuming. Furthermore, when a bending load is applied to the connected fume tube 10 in the direction of arrow A, the connected portion only has one end 11A inserted into the other end 11B, so one end 1'j[l1lA
There was a risk that it would come off from the other end 11B. Further, when a bending load in the direction of arrow A is continuously applied, the ring material 12 becomes fatigued, and there is a possibility that the sealing performance in this portion may deteriorate.

Further, in the example shown in FIG. 9, the work of fitting the sealing band 15 on the outside and the work of winding the rubber bands 17A, 17B are troublesome, and the work of connecting the fume pipe 13 is time-consuming. Further, when a bending load in the direction of arrow A is applied to the connected fume pipe 13 as in the case of FIG. 7, there is a risk that the seal band 15 will fall off from each end 14A, 14B.

Furthermore, in the example shown in FIG. 1O, the seal band 20 (7
) The exterior work and the filling work with the mortar material 21 were considered troublesome, and the work of connecting the hume pipe 18 was considered to be time-consuming. Furthermore, when a bending load in the direction of arrow A is applied to the connected fume pipe 18 in the same manner as in the case of FIG. There was a fear that it would happen.

The present invention has been made by paying attention to the above-mentioned conventional examples, and its purpose is to easily and reliably connect the ends of two hume tubes.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a connection structure for connecting two hume tubes, in which a plurality of positions in the circumferential direction of the connecting end surface of one hume tube are connected. In addition to providing a mating hook, a plurality of mating holes in which the mating hook engages are provided at multiple positions in the circumferential direction on the connecting end surface of the other fume tube, and a hook portion is formed at the tip of the mating hook, and a hook part is formed at the tip of the mating hook. Forms an introduction part that introduces the hook part of the engagement hook, and an engagement part that engages the hook part in the axial direction by relative rotation around the axes of both humic tubes when the hook part is introduced. It is said that

[Function] According to the present invention, after the hook part of the hook that maintains the connection between the ends of the hume tubes is introduced into the introduction part of the engagement hole, the two hume tubes are rotated relative to each other to connect the engagement hook. It becomes possible to engage the hook portion with the engagement portion of the engagement hole. This makes it possible to easily and reliably connect the ends of the two humid tubes.

[Example] Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a partially cutaway front view showing a connection structure for a hume tube according to an embodiment of the present invention, FIG. 2 is a perspective view showing each end of the hume tube to be connected, and FIG. 3 is a perspective view of the hume tube. FIG. 4 is an enlarged sectional view of the section ``■'' in FIG. 1, and FIGS. 5 and 6 are perspective views showing the components of each end of the hume tube.

The hume tube 30 has a constant length and an outer diameter of D5,
Mainly made of concrete. The fume pipe 30 is formed by centrifugally molding concrete material, and has an engaging ring body 31 attached to one end and an engaged ring body 32 attached to the other end. That is, each of the engaging ring body 31 and the engaged ring body 32 is provided with an anchor 33 as shown in FIGS. It is carried out in a state where it is supported. This results in
The anchors 33 of each ring 31, 32 are integrated into the concrete by hardening of the concrete, and the anchors 33 of each ring 31, 32 are
At each end of 0 a respective ring 31,32 will be attached.

The two Hume tubes 30 are connected by one Hume tube 30.
This is carried out by abutting the engaging ring 31 at one end of the fume tube 30 with the engaged ring 32 at the other end of the other hume pipe 30. Four engagement hooks 34 are provided along the circumferential direction [direction of arrow B] on the connecting end surface of the engagement ring body 31 that abuts against the engagement ring body 32.
will be placed. Each engagement hook 34 has an engagement ring body 3 made of iron.
They are formed in such a state that they are respectively implanted on the connection end surfaces of the first and second terminals.

The four engaging hooks 34 are arranged at the same intervals in the circumferential direction, and the engaging hooks 34 are spaced apart by 90 degrees from each other about the axis of the humid tube 30. Each engagement hook 34 is provided with a hook ffA35 that projects in the front clockwise direction [direction of arrow C in FIG. 2] in the circumferential direction [direction of arrow B]. The hook portion 35 is provided with a tapered abutment surface 36 on the engaging side [see FIGS. 3 and 4].

On the other hand, four engagement holes 37 are provided along the circumferential direction [direction of arrow B] on the connecting end surface of the engaged ring body 32 that abuts against the engagement ring body 31 . Each engagement hole 37 is provided with a concave portion formed in the connection end surface of the engaged ring body 32 made of iron. Furthermore, an annular elastic seal member 38 made of butyl rubber, elastic resin, or the like is attached to the connecting end surface of the engaged ring body 32 in which each engagement hole 37 is provided. The four engagement holes 37 are arranged at the same intervals in the circumferential direction, and the engagement holes 37 are spaced apart by 90 degrees from each other about the axis of the hume tube 30.

The engaging ring body 31 and the engaged ring body 32 are brought into contact with each other by inserting each of the engaging hooks 34 into the corresponding engaging holes 37 as shown by the arrows in FIG. The engagement hole 37 is provided with an introduction portion 39 . The introduction part 39 can introduce the hook part 35 of the retaining hook 34 which has a length Ml along the circumferential direction [B direction J] and has a length M2 along one circumferential direction [B direction]. [Refer to Fig. 4 1゜ Inside each engagement hole 37, there is an engagement hole extending in the front counterclockwise direction [direction of arrow E in Fig. 2] in the circumferential direction [direction of arrow B]. A section 40 is provided. The engaging portion 40 is provided with a tapered abutment surface 41 on the engaged side. The engaging portion 40 is capable of engaging with the hook portion 35 of the engaging hook 34 introduced into the introducing portion 39, and this engagement is performed under relative rotation about the axis of both hume tubes 30 to be abutted. . That is, the two-ring part 35 of the engagement hook 34 is introduced into the introduction part 39, and in this state, the engagement ring body 31 is moved forward clockwise [in the direction of arrow C in FIG. 2], and the engaged ring body 32 is moved forward. Front counterclockwise [arrow F in Figure 2]
The hook portion 35 is engaged with the engaging portion 40 by relatively rotating both the hume tubes 30 under the condition of rotation in the [direction] [see Fig. ff51 and Fig. 4].

Each tapered abutting surface 36.4 of the hook portion 35 and the engaging portion 40
1 are engaged with each other in a state where they abut each other, and as a result, both hume tubes 30 approach each other in the axial direction due to the above-mentioned relative rotation, and the end surfaces of the inner ring bodies 31 and 32 to be connected to each other are brought closer to each other in the axial direction. It will be concluded in a state of close r1. Furthermore, when engaging the hook portion 35 and the engaging portion 40,
The engaging hole 37 is filled with a polymeric Jli adhesive material 4z.

The hook 35 and the engaging part 40 are engaged as shown in L,
When the adhesive 42 is solidified in this state, the fastened state of the meat hump tube 30 is maintained [see FIG. 4].

In this way, both hume tubes 3 whose ends are engaged with each other
0 is to be fastened with an elastic seal member 38 attached to the connecting end surface of the engaged ring body 32 interposed therebetween. Furthermore, by sequentially and consecutively fastening a plurality of humid pipes 30 using the above-mentioned connection method, for example, a predetermined distance of water supply can be achieved.

It becomes possible to form a pipeline for sewerage.

Next, the operation of the above embodiment will be explained.

According to the hume tube connection structure according to the above embodiment, the ends of the two hume tubes 30 are connected to each other by the engaging hook 34.
After introducing the hook portion 35 of the
It becomes possible to engage the hook fi35 of No. 4 with the engagement portion 40 of the engagement hole 37. This makes it possible to easily and reliably connect the ends of both fume tubes 30 to each other.

In addition, since the single fume pipe 30 is firmly connected to the phase W, even if a bending load in the direction of arrow A is applied to the connected fume pipe 30, watertightness can be maintained without creating a gap in the connected part. It is.

Furthermore, since an elastic sealing member 38 is interposed between the two humid pipes 30 to be connected, the sealing member 38 is elastically deformed in response to the bending load in the direction of the arrow A, and this also prevents the connection. It is possible to reliably prevent the formation of gaps between parts and maintain watertightness at the connection parts.

In the above embodiment, the elastic seal member 38 is attached in advance to the connection end surface of the engaged ring body 32, but the annular elastic seal member 38 is made independent and the elastic seal member 38 is attached to the connection end face of the engaged ring body 32 in advance. The sealing member 38 may be interposed, or the sealing member 38 may be previously attached to the connecting end of the engagement ring 31.

Furthermore, in the above embodiment, the engagement ring body 31 includes the engagement hook 34 and the engagement ring body 37 includes the engagement hole 37.
The fume pipe 30 is formed by attaching the concrete acid fume pipe 30 to each end, but it is also possible to form an engaging hook and an engaging hole directly at each end of the concrete acid hume pipe 30. good.

Alternatively, as shown in FIG. 7, the anchor 33 and the engagement hook 34 may be welded to a ring-shaped reinforcing bar 43 to form an engagement ring 44.
The anchor 33 and the reinforcing bar 43 are supported by being embedded in concrete that is centrifugally molded, and only the engagement hook 34 is made to protrude from one end of the fume pipe 30 as the concrete hardens.

Further, the hume pipe to which the present invention is applied may be formed of various materials such as a composite material of concrete material and other materials, a synthetic resin material, a metal material, etc.

[Effects of the Invention] As described in E, the present invention provides a hume tube connection structure for connecting two hume tubes, in which engaging hooks are provided at multiple positions in the circumferential direction of the connecting end surface of one hume tube, and
Engagement holes with which the above-mentioned engagement hooks are engaged are provided at a plurality of positions in the circumferential direction of the connection end surface of the other fume pipe, a hook portion is formed at the tip of the engagement hook, and the hook of the engagement hook is formed in the engagement hole. Since we decided to form an introduction part that introduces the hook part, and an engaging part that engages the hook part in the axial direction by relative rotation around the axes of both humic tubes when the hook part is in the four-person state, two This has the effect that the ends of the Hume tubes can be easily and reliably connected to each other.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view showing a connection structure for a hume tube according to an embodiment of the present invention, FIG. 2 is a perspective view showing each end of the hume tube to be connected, and FIG. 3 is a perspective view of the hume tube. FIG. 4 is an enlarged sectional view of the section ■ in FIG. 1, FIGS. 5 and 6 are close-up views showing the components of each end of the hume tube, and FIG. 7 is a front view showing the connection process. 5 is a perspective view similar to FIG. 5 showing another engagement ring according to the present invention, and FIGS. 8 to 10 are partially cutaway front views showing a conventional hume tube connection structure. 30... Huyume pipe, 34... Engagement hook, 35...
...Hook part, 37...Engagement hole, 39...Introduction part,
40...Engagement part. Agent Patent Attorney Osamu Shiokawa Figure 3 Figure 4 Figure 18 Figure 9 Figure 10

Claims (4)

[Claims] (1) In a Hume tube connection structure that connects two Hume tubes, engaging hooks are provided at multiple positions in the circumferential direction on the connecting end surface of one Hume tube, and at multiple positions in the circumferential direction on the connecting end surface of the other Hume tube. An engagement hole is provided in which the engagement hook engages, a hook portion is formed at the tip of the engagement hook, an introduction portion for introducing the hook portion of the engagement hook into the engagement hole, and an introduction portion for introducing the hook portion of the engagement hook, and the hook portion is formed in the engagement hole. 1. A connection structure for a Hume tube, comprising an engaging portion that engages the hook portion in the axial direction under relative rotation around the axes of both Hume tubes in an introduced state. (2) The hook part of the engagement hook and the engagement part formed in the engagement hole are tapered abutting surfaces that are fastened so that both Hume tubes are brought closer together in the axial direction by relative rotation around the axes of both Hume tubes. A connection structure for a Hume pipe according to claim 1, comprising: (3) The hume tube connection structure according to claim 1 or 2, wherein an elastic seal member is interposed between each connection end surface of both the fume tubes. (4) The hume tube connection structure according to claim 1 or 2, wherein at least one connection end surface of both the fume tubes is formed of an elastic sealing material.