CN218449431U

CN218449431U - Cable sealing head structure of improved generation threaded connection cable pressure disk

Info

Publication number: CN218449431U
Application number: CN202222262873.2U
Authority: CN
Inventors: 王娇; 周跃; 张锡淼
Original assignee: Shanghai Liancheng Group Co Ltd
Current assignee: Shanghai Liancheng Group Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-02-03
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to a cable sealing head structure of improved generation threaded connection cable pressure disk, including the cable, the cable pressure disk, the junction box lid, cable seal ring, its characterized in that, cable seal ring are located junction box lid bottom, are cable seal ring on cable seal ring, have seted up the internal thread on junction box lid top inner wall, have the cable pressure disk to twist and connect on the junction box lid at junction box lid top. The utility model has the advantages that integral type steel forges, and tubulose thickness is little, and cable pressure disk size obtains slimming. The lower plane is turned into fine threads, and the hexagonal plane is arranged at the middle lower part of the part, so that the spanner tool is convenient to use. The inner cavity of the part is long, so that the restraint cable is effectively accommodated, and the mechanical damage effect of the torsional moment on the cable is eliminated. The round corners are forged at the positions of the upper plane and the lower plane of the part close to the inner cavity, so that the cables are prevented from touching and cutting when being penetrated or used.

Description

Cable sealing head structure of improved generation threaded connection cable pressure disk

Technical Field

The utility model relates to a cable sealing head structure of improved generation threaded connection cable pressure disk.

Background

The structure of a common cable sealing head in the prior art is shown in fig. 1, 21 cables, 22 cable pressure plates, 23 hexagon socket screws, 24 junction box covers, 25 cable sealing rings and 26 cable sealing gaskets, and the cable pressure plates are shown in fig. 2, 31 horn mouths, 32 inner cavities, 33 screw holes, 34 flange lower planes, 35 rabbets and 36 flanges. The cable pressure disk is thin-walled cylindrical gray iron casting, and upper portion outwards diverges to become the horn mouth, and inner chamber diameter ratio cable external diameter is 4mm more, sets up the round flange in middle and lower part tubulose outer wall. The flange is provided with four screw holes. The lower side of the cable pressure plate flange is processed into a spigot which is matched and positioned with a cable inlet hole of the junction box cover. The cable pressure plate and the junction box cover are fixed by four inner hexagon screws. The parts belong to slender parts, and the feed time of the turning tool is relatively long. Meanwhile, the flange surface needs to be drilled, and the process is multiple. The flange surface is much thicker than the thin wall near the inner cavity, and casting defects are easily generated at the joint. The flange face is in threaded connection, the weight of parts is increased, and meanwhile the size of the connecting portion of the junction box cover is increased. It is desirable to change the connection to reduce the cost of the casting and avoid casting defects.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned problem that exists among the prior art, providing an improved generation threaded connection cable pressure disk, the utility model relates to an improved generation threaded connection cable pressure disk's cable sealing head structure, including cable, cable pressure disk, junction box cover, cable seal ring, its characterized in that, cable seal ring are located junction box cover bottom, are cable seal ring on cable seal ring, have seted up the internal thread on junction box cover top inner wall, have the cable pressure disk to twist at the junction box cover top and connect on the junction box cover. The cable pressure disk forge fashioned barrel for the steel integral type, be provided with the external screw thread outside the bottom, external screw thread and interior screw-thread fit on the inner wall of terminal box lid top, be provided with the hexagonal outside the middle part, be provided with the fillet in the last plane of barrel and lower plane inboard. The inner diameter of the cable pressure plate is 4mm larger than the outer diameter of the cable. The inner thread of the inner wall of the top of the junction box cover and the outer thread of the outer side of the bottom of the cable pressing plate are fine threads. The utility model has the advantages that whole part integral type steel forges, reinforcing part intensity. After forging, the tubular thickness is small, the size of the cable pressure plate is reduced, and materials are saved. The novel structural part is only provided with fine threads turned from the lower part of the hexagonal surface outside the cable pressure plate to the lower plane, and the processing procedures are few. After the connection mode is changed, the size of the outer side of the cable inlet hole of the junction box cover is obviously reduced, and materials are saved. The hexagonal plane is arranged at the middle lower part of the part, so that the spanner tool is convenient to use. The inner cavity of the part is long, so that the cable is effectively contained and restrained, and the mechanical damage effect of the torsional moment on the cable is eliminated. The round corners are forged at the positions of the upper plane and the lower plane of the part close to the inner cavity, so that the cables are prevented from touching and cutting when being penetrated or used.

Drawings

Fig. 1 is a schematic diagram of a conventional cable gland structure in the prior art.

Fig. 2 is a schematic diagram of a cable platen structure in the prior art.

Fig. 3 is the schematic diagram of the cable sealing structure of the present invention.

Figure 4 is the utility model discloses a cable pressure disk structure schematic diagram.

Detailed Description

The invention will be described in detail below with reference to examples and drawings,

in the figure, the cable sealing head structure of the improved threaded connection cable pressure plate comprises a cable 1, a cable pressure plate 2, a junction box cover 3, a cable sealing washer 4 and a cable sealing washer 5, and is characterized in that the cable sealing washer is located at the bottom of the junction box cover, the cable sealing washer is arranged on the cable sealing washer, an internal thread 6 is arranged on the inner wall of the top of the junction box cover, and the cable pressure plate is screwed on the junction box cover at the top of the junction box cover. Cable pressure disk forge fashioned barrel for the steel integral type, be provided with external screw thread 7 in the bottom outside, external screw thread and the interior screw-thread fit on the inner wall of terminal box lid top, be provided with hexagonal face 8 in the middle part outside, be provided with fillet 9 in the last plane of barrel and lower plane inboard. The inner diameter of the cable pressure plate is 4mm larger than the outer diameter of the cable. The inner thread of the inner wall of the top of the junction box cover and the outer thread of the outer side of the bottom of the cable pressing plate are fine threads.

Because the cable pressure disk forges the shaping for the steel integral type, therefore simple structure, workable production, low cost, lower part set up the hexagonal face in the cable pressure disk, and the hexagonal face is convenient for use spanner instrument, directly twists in the junction box lid, easy to operate, and the fillet is forged to inboard upper and lower plane department of cable pressure disk, prevents that the cable winding from touching the cut wound. The thin tooth screw of car system is used for being connected with the junction box lid, changes in waterproofly, and cable pressure disk internal diameter is than the big 4mm of cable external diameter, assembles the cable easily to the hexagonal face is the border, and part upper portion length is longer than the lower part, effectively holds the restraint cable, eliminates torque and to the broken effect of cable machinery.

Claims

1. The utility model provides an improved generation threaded connection cable pressure disk's cable seal head structure, includes the cable, the cable pressure disk, the junction box lid, cable seal ring, its characterized in that, cable seal ring are located junction box lid bottom, and for cable seal ring, the internal thread has been seted up on junction box lid top inner wall to cable seal ring, has the cable pressure disk to twist at junction box lid top and connects on.

2. The improved cable sealing head structure of the threaded connection cable platen as claimed in claim 1, wherein the cable platen is a cylinder formed by forging steel integrally, the outer side of the bottom of the cylinder is provided with external threads, the external threads are matched with internal threads on the inner wall of the top of the junction box cover, the outer side of the middle part of the cylinder is provided with a hexagonal surface, and the inner sides of the upper plane and the lower plane of the cylinder are provided with round corners.

3. An improved cable gland structure for a threaded cable gland according to claim 1 or claim 2 wherein the cable gland inner diameter is 4mm greater than the cable outer diameter.

4. The improved cable sealing head structure of the threaded connection cable platen as claimed in claim 1 or 2, wherein the internal threads of the inner wall of the top of the junction box cover and the external threads of the outer side of the bottom of the cable platen are fine threads.