JP3819988B2 - Pipe connection clip drop-off prevention cover - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a clip drop-off prevention cover for retaining a connected member such as a check valve against a connecting pipe.
[0002]
[Prior art]
As a conventional fall prevention cover for this type of clip, for example, there is one disclosed in JP-A-8-28770. That is, the pipe end of the connecting pipe is fitted into the check valve so that both flanges come into contact with each other, part of both flanges are inserted into the long holes of the clip, and the check valve is inserted into the connecting pipe. In order to prevent the clip from falling off, and to prevent the clip from falling off from both the flanges, the drop prevention cover is fitted over the pair of opening ends of the clip opening from the upper side, for example. It is configured.
[0003]
[Problems to be solved by the invention]
By the way, hitherto, the drop-off prevention cover and the protective cover that protects the sealing O-ring provided on the outer periphery of the check valve tip are separate parts, and the clip is attached to the drop-off prevention cover and the seal. The O-ring is covered with a protective cover, and is separately packed and stored or packed / shipped. At the time of construction at the site, the drop-off prevention cover is used, but the protective cover is discarded. Therefore, the assembly work performed in a factory or the like is increased, and a mold corresponding to both of them is required for molding, or a secondary material such as a parts bag is required, resulting in high costs. Further, since the protective cover is discarded at the time of construction, waste material increases. Moreover, since there are many parts bags, there was a possibility of losing.
[0004]
The present invention has been made in consideration of such a situation, and an object of the present invention is to provide a pipe connection clip drop-off prevention cover that is inexpensive and can reduce waste.
[0005]
[Means for Solving the Problems]
That is, according to the present invention, in a state where the flanges provided on both the pipe end of the connecting pipe and the connected member connected to the connecting pipe are in contact with each other, a part of both flanges are provided with the opening. The cover for preventing the clip from falling off the both flanges, which is inserted into the long hole through the connection pipe and prevents the connected member from coming off, holds the clip to prevent the clip from falling off due to an external force. A cover main body that covers the opening across a pair of opening ends that form the opening, and the opening end connected to the cover main body to prevent the opening ends of the clip from opening outward. In addition, the cover body is provided with a cap portion for protecting the sealing member provided on the connecting pipe or the connected member at the time of packing, shipping, or the like. The It is configured to also serve a protective cover of the seal member.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show the use state of the drop-off prevention cover of the present invention, FIG. 4 shows a part including the drop-off prevention cover that is packed into one at the time of packing and shipping, and FIG. 5 shows the drop prevention at the time of construction. In these drawings, reference numeral 1 denotes a hot-water mixing tap, 2 a supply pipe for supplying hot water or water to the hot-water mixing tap 1, and 3 a communication pipe connected to the upstream end of the supply pipe 2. The relay pipe 4 is a check valve connected to the relay pipe 3 and 5 is a stop cock for mounting the check valve 4.
[0007]
The supply pipe 2 is a flexible pipe made of, for example, a synthetic resin, and the outer surface thereof is pressure-resistant protected by, for example, a stainless steel net. 2a is a ring made of metal fitted to the upstream end of the supply pipe 2. By caulking the ring 2a with the supply pipe 2 inserted into the downstream end of the relay pipe 3, the supply pipe 2 and the supply pipe 2 are connected. The connection with the tube 2 is strengthened.
[0008]
The relay pipe 3 is formed, for example, by pressing a pipe material made of brass, for example. That is, a wavy portion 3a for preventing the supply pipe 2 from coming off is formed on the outer periphery on the downstream side of the relay pipe 3, and a flange 3b and an inner diameter enlarged portion 3c are formed on the upstream end.
[0009]
On the other hand, the check valve 4 is formed by cutting, for example, a bar made of brass by a lathe process or the like, and a valve chamber 4a for inserting a check valve main body (not shown) is formed therein. On the upstream end side, a female screw 4b connected to the water stop cock 5 is formed. The connecting portion 4c on the downstream end side of the check valve 4 has an outer diameter that can be inserted into the inner diameter of the enlarged inner diameter portion 3c, and two O-rings 4d and 4d are embedded in the outer periphery of the connecting portion 4c. And the flange 4e is formed in the pipe | tube inside these O-rings 4d and 4d.
[0010]
A clip 8 is formed by bending a single band-shaped metal member, and has an insertion part A, an opening part B, and a pair of long holes C and C as shown in FIG. . And it has elasticity as a whole.
[0011]
On the other hand, the drop-off prevention cover 6 extends from the cover body 9 and a cover body 9 that covers the opening B across a pair of opening ends b and b that form the opening B of the clip 8. And a pair of prevention pieces 10 and 10 that come into contact with each of the opening ends b and b of the clip 8 from the outer peripheral surface side, and the cover body 9 can prevent the clip 8 from falling off due to an external force. The pieces 10 and 10 can prevent the opening ends b and b of the clip 8 from opening outward.
[0012]
Further, the cover body 9 is provided with a cap portion 7 having a protective opening 7a for protecting the two O-rings 4d, 4d of the check valve 4 at the time of packing, shipping, etc., so that the O-ring 4d, The 4d protective cover is also used.
[0013]
Thus, the assembly work of the check valve 4 in the state shown in FIG. 4 is performed, for example, in a factory. That is, in the state where the connection portion 4c of the check valve 4 is fitted and inserted into the protective port 7a of the cap portion 7 of the cover body 9 of the fall prevention cover 6 that is externally fitted to the clip 8 from above. Packed and stored or transported. Therefore, it is possible to reduce auxiliary materials such as parts bags at the time of packing and shipping.
[0014]
At the time of construction on the site, the check valve 4 with the drop prevention cover 6 and the clip 8 is taken out from the bag, and the connection portion 4c is removed from the protective port 7a of the drop prevention cover 6 so that the check valve 4 is removed. Then, the clip 8 is removed from the dropout prevention cover 6. In this case, since the drop-off prevention cover 6 also serves as a protective cover for the O-ring 4d of the check valve 4, it is possible to avoid a situation in which the protective cover is thrown away during construction as in the prior art, so that waste material increases. Reduced reliably.
[0015]
Subsequently, by inserting the connecting portion 4c into the inner diameter enlarged portion 3c of the relay pipe 3 and inserting the clip 8 with the flanges 3b and 4e sandwiched between the flanges 3b and 4e, The check valve 4 is prevented from being detached from the relay pipe 3.
[0016]
After that, the drop-off prevention cover 6 is fitted over the clip 8 through the prevention pieces 10 and 10 from the upper side across the open ends b and b of the clip 8. Thereby, the prevention pieces 10 and 10 can contact | abut to each outer peripheral surface of the opening ends b and b, and it can prevent that opening ends b and b open outside. Therefore, the clip 8 does not easily fall off.
[0017]
In the above-described embodiment, the check valve 3 is configured to retain the retaining pipe 3 with respect to the relay pipe 3. However, the retaining pipes are prevented from retaining each other (that is, the connected member is also a pipe). The present invention can also be applied to a configuration using clips. Moreover, although the thing of the structure which provided O-ring 4d in the non-return valve 3 was shown, this sealing member may be provided in the relay pipe 3, and in addition, in the case of holding-out prevention of connecting pipes, Any one of them may be provided with a seal member.
[0018]
FIG. 6 shows another embodiment of the present invention in which the cap portion 17 is provided on the outer side of the cover main body 19 of the drop-off prevention cover 16. In addition, since the member attached | subjected with the code | symbol same as FIGS. 1-3 is the same or equivalent member, the detailed description is abbreviate | omitted.
[0019]
Even in this case, at the time of assembly work in the factory, a check valve connecting portion is connected to the protective port 17a of the cap portion 17 of the cover body 19 of the drop-off prevention cover 16 that is externally fitted to the clip 8 from above. By inserting and inserting into a single bag and storing or transporting, auxiliary materials such as parts bags at the time of packing and shipping can be reduced.
[0020]
【The invention's effect】
As described in detail above, the drop prevention cover for the pipe connecting clip of the present invention is provided with a cap portion for protecting the sealing member for sealing between the connecting pipe and the connected member at the time of packing, shipping, etc. Since it is configured to also serve as a protective cover for the seal member, the following effects can be obtained.
(1) One mold is enough.
(2) Waste materials can be greatly reduced.
(3) Sub-materials such as parts bags at the time of packing / shipping can be reduced.
(4) Loss can be reduced by reducing the number of parts when packing and shipping.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an enlarged main part of an example of a hot and cold water mixing plug using a dropout prevention cover according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a state in which a drop-off prevention cover is mounted in the embodiment.
FIG. 3 is a cross-sectional view showing a state in which a drop-off prevention cover is mounted in the embodiment.
FIG. 4 is a perspective view showing an assembled state at the time of packing / shipping in the embodiment.
FIG. 5 is a perspective view of an essential part showing an operation of attaching the drop-off prevention cover in the embodiment.
FIG. 6 is a cross-sectional view showing a state in which a dropout prevention cover according to another embodiment of the present invention is mounted.
[Explanation of symbols]
3 ... Relay pipe, 3b ... Relay pipe flange, 4 ... Check valve, 4d ... O-ring, 4e ... Check valve flange, 6 ... Fall-off prevention cover, 7a ... Protection port, 8 ... Clip, 9 ... Cover body 10 ... prevention piece, b ... opening end.

Claims (1)

Inserting a part of both flanges into the long hole through the opening with the flanges provided on both the pipe end and the connected member connected to the connection pipe abutting each other A pair of covers for preventing the clip from falling off the both flanges to hold the member to be connected to the connection pipe, and forming the opening of the clip so as to prevent the clip from falling off by an external force. A cover main body covering the opening end of the cover, and a continuous connection from the cover main body to prevent the opening ends of the clip from opening to the outside. The cover body is further provided with a cap portion for protecting the sealing member provided on the connecting pipe or the connected member at the time of packing, shipping, etc. Protection Drop-off prevention cover clip tube connection, characterized in that is arranged to alternate the cover.

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