JPH07330012A - Seal cap - Google Patents

Abstract

PURPOSE:To generally apply a seal cock for various kinds of openings of fluid device unit products, by selecting at least two or more same kind or different kind seal caps for external fitting or inserting type to make pairs and connecting respective collars of a pair of seal caps to each other with a connecting piece as a unit. CONSTITUTION:An external fitting seal cap 1 is formed cylindrically and a collar 2 is formed at the periphery of the opening end. An inserting seal cap 3 is also formed cylindrically and a collar 4 of which inward middle is recessed 5, is formed at the peripheral edge of the opening end. And a lip part 6 is formed downward at the outer peripheral end. A protruded part 7 is formed at the outer peripheral face of the inserting seal cap 3 and a screw thread is provided thereon. Respective collars 2, 4 of both seal caps 1, 3 are connected to each other by a connecting piece 10. That is, same or different kind seal caps are selected to constitute a pair of seal caps with at least two or more caps. In this way, the seal cocks can be easily and securely applied for a plurality of pipe end openings or screws in fluid device unit products.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when a fluid device unit product is shipped, is provided inside the unit product through a pipe end opening for piping provided in the unit product or a screw hole for mounting a pipe or the like. The present invention relates to a sealing stopper device that prevents residual liquid or the like from flowing out or foreign matter or dust from entering the product during transportation.

[0002]

2. Description of the Related Art Conventionally, when a fluid device unit product is shipped, a cap or plug is fitted into a pipe end opening or a screw hole for piping provided in the unit product during transportation to complete the inside of a finished product. The residual liquid is prevented from flowing out, or foreign matter or dust is prevented from entering through the pipe end opening or the screw hole during transportation. For example, in the gearbox A of the power steering shown in FIG. 8, the pipe end portion 51 and the screw holes 52, 53, 54 opened are provided. These pipe ends 51, screw holes 52, 53, 54
In order to keep the pipe closed during transportation, a cap 51a fitted to the pipe end 51 is used, and the screw holes 52, 5
The screw holes were closed by inserting plugs 52a, 53a, and 54a into 3 and 54, respectively.

The above-mentioned cap 51a and plug 52
The closed state of the a, 53a, and 54a will be further described. As shown in FIG. 9, when the cap 51a is attached while the bottom portion 51b of the cap 51a is pushed, the cap 51a itself is slanted or buckled. It is difficult to install the product, and therefore, there is a waste or inconsistency such as making it thicker and shortening the installation length. In addition, the plug 52a (53
a and 54a are also the same), engraving a screw that engages with the screw of the screw hole to be inserted over the entire outer peripheral surface causes a difficulty in attachment / detachment. The screw thread is scraped off by the screw thread of the screw hole and foreign matter is generated, which causes problems such as malfunction of the system.
The size of the piping is becoming smaller due to the increase in operating pressure of the equipment and the reduction of piping resistance, and it is not possible to cope with this by engraving the screw around the entire circumference of the conventional plug.
Further, the inner peripheral surface of the flange 52b provided at the opening end of the plug 52a is a smooth surface, which has poor sealing performance in contact with equipment, and there is a fear that foreign matter or the like may enter from this portion (FIG. 10). reference). Note that the flange 57b of the plug 57, which has a smooth outer peripheral surface of the cylindrical portion with respect to the opening 56 in which the screw is not provided, has the same problem as described above.

Further, in a device particularly disliked by contamination, as shown in FIG. 11, the screw hole 52 is closed with a seal 55 in order to complete the sealing. However, when the seal 55 is used, Not only does the sticking and peeling work of the seal 55 require man-hours, but the sticker after peeling still retains the sticking property, and there was a problem in its treatment.

Further, each of the above-mentioned caps and plugs is provided with one corresponding to the opening to be closed, and is mounted one by one, and reciprocates between the mounting location and the component case. In addition to requiring man-hours, there were also problems such as forgetting to install.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and aims to achieve a sealing property between a plurality of openings formed in a fluid device unit product and a sealing plug, and It is an object of the present invention to provide a sealing stopper device which can be easily attached and detached by connecting a plurality of sealing stoppers corresponding to the plurality of openings to each other.

[0007]

In order to achieve the above object, a sealing stopper device according to the present invention comprises a cylindrical sealing plug for external fitting having a collar portion at the opening end, and an inner central portion. At least two sealing plugs of the same kind or different kinds are combined with the cylindrical fitting sealing plug having the flange portion having the concave portion formed at the opening end to form a set. It is characterized in that the respective collars of the respective sealing plugs are connected and integrated through a connecting piece, and at least two sealing plugs of the same kind or different kinds are selected from the above-mentioned connecting pieces to form a set. A rubber or resin injection runner for integrally molding these with a mold is used after molding.

[0008]

The sealing stopper device according to the present invention comprises a cylindrical sealing plug for external fitting having a flange portion formed at the opening end, and a flange portion having a concave portion formed at the inner central portion at the opening end. At least two sealing plugs of the same or different type as the cylindrical sealing plug for insertion are selected and combined to form one set, and each of the one set of sealing plugs is connected by a connecting piece. Since it is integrated with each other, a sealing plug corresponding to each opening end of the plurality of openings provided in the fluid device unit product to be shipped can be mounted, and each selected sealing plug Since they are connected by a connecting piece, each of the sealing plugs can be removed at once by pulling the connecting piece, and the inside of the collar at the opening end of the fitting sealing plug can be removed. Due to the concave portion, the sealing property is improved.

[0009]

Embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment of a sealing plug for external fitting and a sealing plug for fitting of the present invention, in which 1 is a sealing plug for external fitting made of rubber or synthetic resin, The sealing plug is, for example, removably fitted into a piping pipe provided in a fluid device unit product, has a cylindrical shape, and is provided with a collar 2 around the entire circumference at the periphery of the opening end. Has been.

Reference numeral 3 denotes a rubber or synthetic resin fitting sealing plug which is fitted into a screw hole or the like opened in a fluid device unit product, for example. The fitting sealing plug 3 has a cylindrical shape and its opening. A flange portion 4 having a concave shape 5 at the inner center is provided along the entire periphery of the end, and a downwardly directed lip portion 6 is formed at the outer peripheral end of the flange portion 4. 7, 7,
Reference numeral 7 denotes a ridge formed in the longitudinal direction on the outer peripheral surface of the fitting sealing plug 3 at a predetermined interval, and the ridges 7, 7, 7 are
A screw 8 that engages with a screw of a screw hole into which the fitting plug 3 is fitted is continuously provided to each of the raised portions 7, 7, 7.

Numeral 10 is a flange portion 2 of the above-described external fitting sealing plug 1.
A connecting piece for connecting the flange portion 4 of the fitting sealing plug 3 with
The connecting piece 10 forms a runner which is a runner for pouring rubber or resin into the mold when integrally molding the external sealing plug 1 and the insertion sealing plug 3 in the mold. It is used as it is after completion. In addition, on the outer periphery of the above-described fitting plug 3 for insertion, the ridges 7, 7,
7 has been described, and the protrusions 7, 7, 7 are provided with screws, but when the fluid device unit product has a straight hole, the outer circumference of the fitting plug is fitted. Also, a straight surface will do. Further, a knob portion (not shown) to be detached may be attached to the outer peripheral ends of the flange portion 2 of the external fitting sealing plug 1 and the flange portion 4 of the fitting sealing plug 3 described above.

As described above, the external fitting sealing plug 1 and the fitting sealing plug 3 are provided with the pipe end opening for piping and the screw for piping provided in the fluid device unit product. The pipe end and the screw hole are closed by fitting or inserting into the screw hole. Since these sealing plugs are connected by the connecting piece 10, the external fitting sealing plug 1 and The sealing plug 3 for fitting is fitted and inserted into the pipe end and the screw hole, and the ridges 7, 7, 7 are provided at a plurality of locations on the outer periphery of the sealing plug 3 for fitting. The screw 8 of the engraving is engaged with the screw of the screw hole, and further, the lip portion 6 of the outer peripheral edge of the collar portion 4 of the fitting sealing plug 3 and the concave portion formed in the center of the collar portion 4 are formed. Due to the existence of 5, when the fitting sealing plug 3 is fitted into the screw hole of the fluid device unit product, the screw 8 engages with the screw of the screw hole, and further the collar portion 4 Sealing with the surface of the device by the lip 6 becomes favorable, the screw holes foreign matter, dust is prevented from entering.

Further, when the diameter of the screw hole is small, if a screw that engages with the engraved screw is provided in the screw hole over the entire circumference of the fitting sealing plug 3, there is a problem in attachment / detachment. In particular, when the sealing plug is forcibly attached and detached, the thread engraved on the sealing plug is scraped off by the screw of the screw hole to generate foreign matter, which causes a problem such as malfunction of the system. The screw 8 of 3 is not provided over the entire outer peripheral surface of the cylindrical portion of the fitting sealing plug 3, but is provided on the ridges 7, 7, 7 provided in the longitudinal direction at a predetermined interval. Therefore, the engagement at the time of fitting and the disengagement at the time of removal are extremely easy,
Further, since the external fitting sealing plug 1 and the fitting sealing plug 3 are connected and integrated by the connecting piece 10, when removing each sealing plug, they are integrated by pulling the connecting piece 10 or the like. Each sealing plug that is present can be removed from the fluid device unit product at once. Further, since the above-mentioned connecting piece 10 uses the runners which are runners after molding, when the respective sealing plugs are integrally molded with the mold, the runners that have been conventionally removed can be used as they are. Therefore, it is possible to eliminate the waste of material and to improve the efficiency because the step of removing the runner is not required.

Further, the above-mentioned external fitting sealing plug 1 and the above-mentioned fitting sealing plug 3 have been described as being connected to each other by the connecting piece 10, but the combination is not limited to such a combination. Instead, various combinations are determined by the number of pipe end openings for piping or the number of screw holes or the like arranged in the fluid device unit product to be fitted. For example, the power shown in FIG. Steering gear box A, pipe end 3
When 1 and 3 screw holes 32, 33, 34 are provided,
The sealing plug used in this power steering gear box A is a substantially X-shaped connecting piece with one external sealing plug 31a and three external sealing plugs 32a, 33a, 34a. At 35, the above sealing plugs are connected and integrated. Further, in the power steering hose 38 shown in FIG. 7, two plugs 39a and 40a for external fitting are connected by a connecting piece 41 to close the tube ends 39 and 40.

As described above, depending on the combination of the external fitting sealing plug 1 and the fitting sealing plug 3, it is possible to respond to the arrangement of the pipe end opening and the screw hole of the pipe in any equipment. In addition, at least two sealing plugs of the same type or different types, including the above-mentioned sealing plugs for insertion that have a smooth outer peripheral surface, are selectively combined to form one set. As described above, the device can be integrated with the connecting piece so that it can be used for any device. By doing so, it is possible to eliminate forgetting to close the opening when shipping the device, and Wearing once
It can be removed.

FIG. 4 shows another example of the fitting sealing plug. The fitting sealing plug 13 is provided with a cylindrical body 14 and a lip portion 16 at the outer peripheral edge at the open end of the cylindrical body 14. Mitsuba 15
Is provided. 17, 17, 17, ... Are cylindrical bodies 1
4 is a rib for reinforcement provided on the lower part of the inner periphery of the rib 1.
The bottom side of the fitting sealing plug 13 is reinforced by 7, 17, 17, .... In addition, 18 is a semi-circular band portion projecting over the entire circumference on the lower peripheral surface of the cylindrical main body 14,
The band 18 is used when the fluid device unit into which the fitting sealing plug 13 is fitted is provided with an O-ring mounting groove in a mounting hole for a pipe or the like. Is inserted into the groove to be used for sealing and locking,
The ribs 17, 17, ... serve to reinforce the band portion 18. However, as the fitting sealing plug, both the band portion 18 and the ribs 17, 17 ,. Well,
Further, it may be provided with only one of them.

FIG. 5 shows another example of the sealing plug for external fitting. To explain this, the sealing plug for external fitting 21 is the sealing plug for external fitting 21.
At the center of the inner bottom portion of the cylindrical body 22 of the
Is provided with an annular protrusion 23 that comes into contact with the rim 27 of the pipe end portion to which is fitted, and the convex portion 25 is provided on the inner peripheral side of the outer surface of the collar portion 24 of the outer fitting sealing plug 21. Since the structure is formed, the outer fitting sealing plug 21 is provided so that the pipe end port edge 27 arranged on the device abuts on the outer periphery of the projection 23, and the screw 28 engraved on the outer periphery of the pipe end is provided. If it is fitted so as to cover the pipe end mouth edge 27 is sealed by the protrusion 23,
The outer surface of the collar portion 24 contacts the equipment surface, and the presence of the convex portion 25 ensures the sealing property of this surface and protects the screw portion.

The above-mentioned sealing rib 13 for fitting, which has the reinforcing rib 17 and the semi-circular band portion 18 on the outer periphery, the projection 23 for abutting the edge of the pipe end, and the outer surface of the collar are convex. The external fitting sealing plug 21 having the portion 25 can also be used in the same manner as the external fitting sealing plug 1 and the fitting sealing plug 3 as shown in FIG. If used together, the effect can be further increased, and in particular, the outer-fitting sealing plug 21 provided with the protrusion from the bottom of the cylindrical body is suitable for use in closing the pipe end of the flare nut.

[0019]

The sealing stopper device according to the present invention comprises a cylindrical sealing plug for external fitting having a flange portion at the opening end, and a flange portion having a concave portion at the inside center at the opening end. At least two or more sealing plugs of the same type or different types as the above-mentioned sealing plugs for fitting are selected to form one set, and the flange portions of the sealing plugs that are one set are connected by a connecting piece. Since it is integrated, it is possible to use a plurality of sealing plugs according to the number of pipe end openings, screw holes, etc. arranged in the device unit product of the shipped fluid as a set. Therefore, it can be surely closed, and it is possible to prevent shipment up to the opening without being closed as in the past, and since each set of sealing plugs is connected by a connecting piece, It is easy not only to eliminate the closing opening, but also to remove it by applying force to the connecting piece when removing it. .

In addition, since the runner in the mold is used as the connecting piece after molding when integrally forming the sealing plugs that make up one set, the connecting piece requires a step particularly for manufacturing the connecting piece. Moreover, since the runner, which has been removed and discarded in the past, is used as it is, the waste of material can be eliminated. Further, since the recessed portion is formed in the center of the inner side of the collar portion of the fitting sealing plug, when the inner side of the collar portion is in contact with the surface of the device, the sealability can be obtained by the recessed portion, The entry of foreign matter from this portion is prevented.

[Brief description of drawings]

FIG. 1 is a front view of a sealing stopper device of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a bottom view of the fitting sealing plug.

FIG. 4 is an explanatory view of another example of the fitting sealing plug.

FIG. 5 is an explanatory view of another example of the sealing plug for external fitting.

FIG. 6 is an explanatory view showing a usage example of the sealing stopper device of the present invention.

FIG. 7 is an explanatory view showing another example of use of the sealing stopper device of the present invention.

FIG. 8 is an explanatory view showing the use of a conventional cap and plug.

FIG. 9 is an explanatory view of a conventional cap for closing a pipe end.

FIG. 10 is an explanatory view of a conventional plug for closing a screw hole.

FIG. 11 is an explanatory view of a conventional seal for closing a screw hole.

FIG. 12 is an explanatory view of a conventional plug for closing a pipe end opening.

[Explanation of symbols]

 1 Sealing Plug for External Fitting 2 Flange Part of Sealing Plug for External Fitting 3 Sealing Plug for Fitting 4 Collar Part of Sealing Plug for Fitting 5 Recessed Part 6 Lip Part 7 Raised Part 8 Screw 10 Connecting Piece

Claims (5)

[Claims] 1. A cylindrical plug for external fitting having a flange formed at the opening end, and a cylindrical plug for fitting having a flange formed at the inside center with a recess at the opening end. At least two sealing plugs of the same type or different types are selected to form a set, and the collar portions of the sealing plugs in the set are connected and integrated through a connecting piece. Characteristic sealing stopper device. 2. The connecting piece is formed by a runner for injecting rubber or resin when integrally molding a set of sealing plugs with a mold. Sealing plug device. 3. A plurality of vertical ridges are formed at predetermined intervals on the peripheral surface of the fitting sealing plug, and the screw holes of a device into which the fitting sealing plug is fitted are formed on the respective ridges. The screw engaging with the screw is continuously engraved.
The sealed stopper device described. 4. The sealing plug device according to claim 1, wherein a reinforcing rib is provided on an inner peripheral portion of the fitting sealing plug. 5. The bottom of the sealing plug for external fitting is provided with a protrusion that comes into contact with the edge of the pipe end portion of the pipe of the device to which the sealing plug is externally fitted, and the opening end of the sealing plug. The sealing stopper device according to claim 1 or 2, wherein a convex portion is formed on an outer surface of the flange portion.