JPH0657032U - Structure to close the mouth of electric cable wire - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a structure for preventing moisture from entering from the end of a cable buried in the ground or laid on the seabed and capable of easily performing a terminal treatment. [Structure] Combining the upper and lower pressure plates and the elastic body, compressing and compressing the upper and lower pressure plates to expand and expand the volume of the elastic body in the middle, and it is closely attached to the inner side of the tube mouth to further close the tube mouth. Configured to contain.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for sealing the pipe mouths of various electric cables laid in the ground or the seabed.

[0002]

[Prior art]

 With the development of modern electric technology, electric cables (CABLE) are widely used widely, and various important electricity must also use electric cables in large quantities. Most of the underground cables and subsea electric cables that are buried under the sea have many opportunities to be used in places where they are easily corroded by chemical corrosion and salt damage.

At present, the metal or plastic pipes of each family are attached to the outside, but since there is always a difference of 10% or more in the inner diameter and a hollow gap, It is unavoidable that salt damage and mud sand penetrate between them. As a result, the quality of the electric cable and the susceptibility of the pipe to rusting are prohibitive for economic damage.

Of course, from the above points as well, the industrial amendment method can be ditched from now on, but generally speaking, in general, an operator or an operator, a simple enclosure, and the like It is often done by closing the mouth of the pipe. However, due to differences in cable diameter and pipe size, many sizes of enclosures must be prepared. Further, it is not preferable that impurities such as air or salt penetrate deeper into the gap inside the pipe. In terms of conventional technology, it has not yet been represented as an ideal revision.

[0005]

[Problems to be solved by the device]

 In the modification of the present invention, the two ways are divided, and firstly, the modification is made with the aim of an automatic sealing method rather than an artificial method. Secondly, ideally, the same multiple sealed individuals, including one, three, four, etc. cables, should each be wrapped in a tube to form a complete cable. Revise to carry out protective action.

[0006]

[Means for Solving the Problems]

 In this device, two obvious amendments have been made to solve the above problems. That is, first of all, an automatic combination of the enclosures is designed, and a rigid pressure plate with a vertical orientation is provided, and a special elastic material is inserted in the middle of the pressure plate, which is then attached to the cable. The elastic body is swollen inside the tube by the pressure of the pressure plate and at the tube opening so that the tube opening is sealed. In addition, each outer tube includes one, three, and four cables, and a single set, or three or four assembled sets, or a plurality of sealed individuals (ie, It is a revised idea to try to design by combining a combination of the upper and lower pressure plates and an elastic material.

[0007]

【Example】

 Furthermore, the structure, features, etc. of the present invention will be specifically explained in detail through the following, along with the implementation drawings and explanations.

As shown in FIGS. 2 and 3, the structure for closing the pipe mouth of the electric cable wire according to the embodiment of the present invention is basically composed mainly of a plurality of upper pressure plates (1) and lower pressure plates (3). The individual can be composed by combining the elastic bodies (2) corresponding to each of them. Also, a set of washers (5) and screw bolts (41) are attached to each individual, and the vertical movement of the upper and lower pressure plates (1, 3) is controlled by holding them.

Further, referring to FIG. 7, the upper and lower pressure plates (1, 3) and the elastic body (3) are respectively provided in the tube mouth (8) of the cable pipe in the same manner as before in the hollow. ) Is provided inside, so that a strict sealing action of the pipe mouth can be performed. It is confirmed that the contents of the action can be clarified very easily by referring to FIGS. 2 and 3.

That is, the elastic body (2) is mainly made of a flexible plastic or a rubbery substance having elasticity as a material. Further, the upper and lower pressure plates are mainly made of hard steel or copper and hard glass fiber.

Regarding the vertical movement of the vertical pressure (1, 3), first, the vertical pressure plate (1, 3) is immediately moved directly while rotating the screw bolt (4) which can be turned in the left or right direction. 7) (the direction indicated by the vertical arrow in FIG. 7), the compressive force is exerted on the elastic body (2), and the elastic force of the elastic body (2) itself (the direction indicated by the horizontal arrow in FIG. 7) The pipe wall of the pipe mouth (8) is attached so that the surface of the elastic body (2) and the inner surface of the pipe mouth (8) are closely adhered to seal the pipe mouth (8). You can As a result, all foreign dust, rust and salt damage will make it absolutely impossible to enter the pipe.

As the action of the washer (5), when the screw bolt (4) is rotated, if it reaches a certain amount, it is fixed by the washer and fixed in a fixed position so that it cannot move.

As shown in FIG. 4, in order to enhance the sealing effect depending on the diameter of each cable wire, the outer surface of the cable is covered with an envelop (6) similar to that of a single pipe. Moreover, the material of the envelope (6) is also made of soft rubber or plastic, and the main body of the envelope (6) has one stitch (62) as the center line. ) Is cut out, and sometimes the diameter of the cable can also be readjusted to the diameter of its envelope (6).

Further, by gathering at the bottom of FIG. 4, the convex edge (64) is particularly extended from the bottom of the envelope (6), whereby the envelope (6) and the screw pipe (4) are extended. ), And the position of the inner cable body is fixed and does not move.

In contrast to FIG. 2, when the elastic body (2) is pressed, the bulging part does not flow out of the upper and lower pressure plates (1, 3) and leaks, so that the edge of the upper pressure plate (1) is not leaked. A curved convex edge (11) is extended along and a sloped surface (12) is specially provided to prevent it.

Referring to FIG. 3, a single cut-out opening (23) is particularly cut out from between the centers of the elastic bodies (2). The action is to open the opening (23) completely just before use so that the cable body is wrapped in it and easily pushed into the tube mouth (8). And, the sealing action of the present invention can be easily performed as the most ideal. It is not necessary to unconditionally remove any assembly.

Further, it is preferable that the elastic member (2) is cut at the mouth (23) diagonally like a diagonal cut surface as shown in FIG. The main reason is that when the elastic body (2) is expanded, the number of the expansion threads is reduced from the stitches on the inclined surface to stop the incorrect expansion operation.

In FIGS. 1, 2 and 3, it is a structure for sealing a single set of cables, and in FIGS. 8, 10 and 13 a structure for providing four sets of elastic solids, and FIG. , 11, and 12 are structures in which three sets of cables and three sets of elastic solids are provided, the most obvious of which is the excellent aspect of the structure.

Further, as shown in FIG. 3, in the most obvious manner, the upper and lower pressure plates (1, 3) can be easily opened, that is, on the pressure plate (1, 3), two opposing opening bodies (16, 36) are provided. ) Is provided, and the elastic body (2) is also provided with two opposing opening bodies (15, 35) in the same manner. If you want to fit the cable in it, open the openings (15, 35) and (16, 36) of each other so that the opening is complete, then insert the cable and insert the opening again. I'll close it. On the contrary, when the cable can be taken out, the opening body (15, 36 or 16, 36) is first opened and the cable is taken out. Therefore, the sealing action is easy and can be surely performed without any difficulty.

[0012]

[Effect of device]

 Due to the above-described configuration, it is certainly recognized that the design of the present invention guarantees the most practical effects. We also believe that this invention will have a huge economic advantage for the electric cable facility process.

[Brief description of drawings]

FIG. 1 is a perspective view of a sealing structure of the present invention.

2 is a cross-sectional view of what is shown in FIG.

FIG. 3 is a diagram showing the development of the one shown in FIG. 1 in a state in which the sealing body is opened.

FIG. 4 is a diagram showing an example of a cable envelope.

FIG. 5 is a sectional view of an upper pressure plate.

FIG. 6 is a sectional view of a lower pressure plate.

FIG. 7 is a diagram showing an embodiment of the present invention.

FIG. 8 is a diagram showing the structure of four sets of cables and four sets of sealed objects.

FIG. 9 is a diagram showing the structure of three sets of cables and four sets of sealed solids.

FIG. 10 is a diagram showing four sets of cables and four sets of sealed objects.

FIG. 11 is a perspective view showing three sets of cables and three sets of sealed objects.

FIG. 12 is a diagram showing the structure of three sets of sealed individuals.

FIG. 13 is a diagram showing the structure of four sets of sealed individuals.

FIG. 14 is a cross-sectional side view of what is shown in FIG.

FIG. 15 is a diagram showing a state in which the sealed solid bodies shown in FIG. 13 are combined.

[Explanation of symbols]

 1 Upper Pressure Plate 2 Elastic Body 3 Lower Pressure Plate 4 Screw Bolt 5 Washer 6 Cable Wrap 8 Pipe (Pipe) 12 Inclined Surface 15,35 Vertical Plate Opening Body 16,36 Elastic Body Opening 23 Seam 62 Wrap Sewn item 64 Convex edge

Claims (3)

[Scope of utility model registration request] 1. A pair of upper and lower pressure plates and an elastic body fitted between them are combined to provide a set of sealed objects, and the elastic body is expanded by the compressive force of the upper and lower pressure plates to automatically open a cable mouth. The structure that closes the pipe mouth of the electric cable wire, which is characterized in that it is closed. 2. The elastic body is made of elastic candy rubber material or plastic material, and the inner side of the tube mouth is closely attached by the expansion force of the volume to seal the tube. A structure for sealing the pipe mouth of the electric cable wire according to Item 1. 3. According to the number of a single cable or a plurality of cables in a cable pipe, the number of cables is increased in the same manner as the number of cables in a sealed individual body having an upper and lower pressure plate and an elastic body in the middle to form a combination. 2. A body and a four-piece body are provided.
A structure that seals the pipe mouth of the electric cable wire described.