CN210297225U - Anti-loosening extra-high voltage direct current casing joint - Google Patents

Abstract

The utility model discloses a prevent special high voltage direct current bushing joint that pine takes off, including first sleeve pipe, second sleeve pipe and joint main part, the joint main part includes first joint, second joint and fixing bolt, first joint one end with first sleeve pipe fixed connection, second joint one end with second sleeve pipe fixed connection, first joint inner wall middle part is equipped with the recess, the recess is a blind groove who link up with the external world, fixing bolt runs through the screw hole first joint is inside extremely in the recess, recess upside and downside all are equipped with the internal thread, second joint outside fixed connection second fixed plate, the first fixed plate of second fixed plate one side fixed connection. The utility model relates to a rationally, it is not hard up gradually under the effect that prevents effectively that the sleeve pipe from rocking, poor stability to when the cable rotates because of external force, relative rotation can take place for cable and sleeve pipe joint department, makes the damaged phenomenon of insulating layer of cable in joint department easily.

Description

Anti-loosening extra-high voltage direct current casing joint

Technical Field

The utility model relates to a casing joint, in particular to prevent special high voltage direct current casing joint that pine takes off.

Background

The cable sleeve is also called as a protection tube and a conduit, and is a pipeline for protecting wires and cable wiring in electrical installation, and allows the wires and the cables to be penetrated and replaced. The cable sleeve is a novel sleeve material which is popularized and used in power engineering and has the advantages of high strength and high rigidity.

In order to link together cable sleeve, all can use casing joint to connect usually, however two casing joint of tradition are connecting the back, and the screw thread between two joints can become flexible gradually under the effect that the sleeve pipe rocked, poor stability to when the cable rotated because of external force, relative rotation can take place in cable and casing joint department, made the cable damaged at the insulating layer of joint department easily, released the extra-high voltage direct current casing joint who prevents to loosen for this reason.

Therefore, an extra-high voltage direct current casing joint capable of preventing loosening is provided.

Disclosure of Invention

The main object of the utility model is to provide an extra-high voltage direct current casing joint for preventing looseness, in the using process, firstly, a first fixing plate and a second fixing plate are sent into a groove, then the first joint or the second joint can be rotated to complete mutual screwing fixation between the first joint and the second joint, the top side and the bottom side in the groove are both provided with internal threads, and the top side and the bottom side of the second fixing plate are both provided with external threads, so that the groove can screw and fix the inner and outer surfaces of the second fixing plate, the stability between the first joint and the second joint is increased, meanwhile, after the first fixing plate is deep into the groove, a fixing bolt can be reused to penetrate through the first joint through a threaded hole to compress the first fixing plate, the threaded hole is not shown in the figure, thereby the casing joint can fix the first casing and the second casing in two aspects, and the casing is effectively prevented from loosening gradually under the action of shaking, poor stability to when the cable rotated because of external force, relative rotation can take place for cable and sleeve pipe joint department, made the phenomenon that the insulating layer of cable in the joint department was damaged easily, can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an anti-loosening extra-high voltage direct current sleeve joint comprises a first sleeve, a second sleeve and a joint main body, the joint main body comprises a first joint, a second joint and a fixing bolt, one end of the first joint is fixedly connected with the first sleeve, one end of the second joint is fixedly connected with the second sleeve, a groove is arranged in the middle of the inner wall of the first joint, the groove is a blind groove communicated with the outside, the fixing bolt penetrates through the inside of the first joint to the groove through a threaded hole, the upper side and the lower side of the groove are both provided with internal threads, the outer side of the second joint is fixedly connected with a second fixing plate, one side of the second fixing plate is fixedly connected with the first fixing plate, the top side and the bottom side of the second fixing plate are both provided with external threads, the external thread is matched with the internal thread, and both the first fixing plate and the second fixing plate can be inserted into the grooves.

Further, the threaded holes are formed in the outer side of the first joint, and the number of the threaded holes is two.

Further, the groove depth of the groove is larger than the sum of the lengths of the first fixing plate and the second fixing plate.

Compared with the prior art, the utility model discloses following beneficial effect has: in the using process, the first fixing plate and the second fixing plate are firstly sent into the groove, then the first joint or the second joint can be rotated to complete the mutual screwing and fixing between the first joint and the second joint, the top side and the bottom side inside the groove are both provided with internal threads, and the top side and the bottom side of the second fixing plate are both provided with external threads, so that the groove can screw and fix the inner surface and the outer surface of the second fixing plate, the stability between the first joint and the second joint is increased, meanwhile, after the first fixing plate goes deep into the groove, a fixing bolt can penetrate through the first joint through a threaded hole to press the first fixing plate tightly, the threaded hole is not shown in the figure, so that the sleeve joint can fix the first sleeve and the second sleeve in two aspects, the gradual loosening under the action of the shaking of the sleeves is effectively prevented, the stability is poor, and when a cable rotates due to external force, the relative rotation between the cable, the phenomenon that the insulating layer of the cable at the joint is easily damaged.

[ description of the drawings ]

Fig. 1 is a schematic view of the overall structure of an extra-high voltage direct current bushing joint for preventing loosening according to the present invention.

Fig. 2 is the utility model relates to a prevent that special high voltage direct current casing joint's that pine takes off first joint design sketch map.

Fig. 3 is a schematic view of a second joint structure of the extra-high voltage direct current casing joint for preventing loosening according to the present invention.

Fig. 4 is a schematic view of the anti-loosening ultrahigh-pressure direct-current casing joint according to the present invention in an assembled state.

In the figure: 1. a first sleeve; 2. a second sleeve; 3. a first joint; 4. fixing the bolt; 5. a second joint; 6. a groove; 7. an internal thread; 8. a first fixing plate; 9. a second fixing plate; 10. and (4) external threads.

[ detailed description ] embodiments

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-4, an anti-loosening extra-high voltage direct current bushing joint comprises a first bushing 1, a second bushing 2 and a joint body, wherein the joint body comprises a first joint 3, a second joint 5 and a fixing bolt 4, one end of the first joint 3 is fixedly connected with the first bushing 1, one end of the second joint 5 is fixedly connected with the second bushing 2, a groove 6 is arranged in the middle of the inner wall of the first joint 3, the groove 6 is a blind groove communicated with the outside, the fixing bolt 4 penetrates through the inside of the first joint 3 into the groove 6 through a threaded hole, inner threads 7 are arranged on the upper side and the lower side of the groove 6, a second fixing plate 9 is fixedly connected to the outer side of the second joint 5, a first fixing plate 8 is fixedly connected to one side of the second fixing plate 9, outer threads 10 are arranged on the top side and the bottom side of the second fixing plate 9, the external thread 10 is adapted to the internal thread 7, and both the first fixing plate 8 and the second fixing plate 9 can be inserted into the groove 6.

The utility model relates to a prevent extra-high voltage direct current casing joint that pine takes off.

The working principle is as follows: in the using process, the first fixing plate 8 and the second fixing plate 9 are firstly sent into the groove 6, then the first joint 3 or the second joint 5 can be rotated to finish the mutual screwing and fixing between the first joint 3 and the second joint 5, the top side and the bottom side in the groove 6 are both provided with internal threads 7, and the top side and the bottom side of the second fixing plate 9 are both provided with external threads 10, so that the groove 6 can screw and fix the inner surface and the outer surface of the second fixing plate 9, the stability between the first joint 3 and the second joint 5 is increased, meanwhile, after the first fixing plate 8 extends into the groove 6, the fixing bolt 4 can penetrate through the first joint 3 through a threaded hole to press the first fixing plate 8, the threaded hole is not shown in the figure, thereby the casing joint can fix the first casing 1 and the second casing 2 in two aspects, and the casing can be effectively prevented from gradually loosening under the shaking action, the stability is poor, and when the cable rotated because of external force, relative rotation can take place for cable and sleeve pipe joint department, made the phenomenon of cable insulation damage in joint department easily.

The threaded holes are formed in the outer side of the first connector 3, and the number of the threaded holes is two.

Wherein the groove depth of the groove 6 is larger than the sum of the lengths of the first fixing plate 8 and the second fixing plate 9.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (3)

1. The utility model provides an prevent extra-high voltage direct current bushing head that pine takes off, includes first sleeve pipe (1), second sleeve pipe (2) and connects the main part, its characterized in that: the joint main body comprises a first joint (3), a second joint (5) and a fixing bolt (4), one end of the first joint (3) is fixedly connected with the first sleeve (1), one end of the second joint (5) is fixedly connected with the second sleeve (2), a groove (6) is arranged in the middle of the inner wall of the first joint (3), the groove (6) is a blind groove communicated with the outside, the fixing bolt (4) penetrates through the inside of the first joint (3) into the groove (6) through a threaded hole, inner threads (7) are arranged on the upper side and the lower side of the groove (6), a second fixing plate (9) is fixedly connected to the outer side of the second joint (5), a first fixing plate (8) is fixedly connected to one side of the second fixing plate (9), and outer threads (10) are arranged on the top side and the bottom side of the second fixing plate (9), the external thread (10) is matched with the internal thread (7), and both the first fixing plate (8) and the second fixing plate (9) can be inserted into the groove (6).

2. The anti-loosening extra-high voltage direct current casing joint according to claim 1, characterized in that: the threaded holes are formed in the outer side of the first connector (3), and the number of the threaded holes is two.

3. The anti-loosening extra-high voltage direct current casing joint according to claim 1, characterized in that: the depth of the groove (6) is larger than the sum of the lengths of the first fixing plate (8) and the second fixing plate (9).

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