CN216287785U

CN216287785U - Composite insulator core rod

Info

Publication number: CN216287785U
Application number: CN202121558179.4U
Authority: CN
Inventors: 陈学根
Original assignee: Jiangsu Long Heng New Mstar Technology Ltd
Current assignee: Jiangsu Long Heng New Mstar Technology Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-04-12
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a composite insulator core rod, which comprises a core rod body. The utility model provides a composite insulator plug, includes outer jacket layer, outer jacket layer middle part threaded connection has the mandrel body, mandrel body bottom threaded connection has lower connection gold spare, the inside a week of outer jacket layer lateral wall evenly is provided with four injecting glue chambeies, the middle part of outer jacket layer lateral wall a week evenly is provided with four and goes out the gluey hole, the first card strip of the equal fixedly connected with in both ends about outer jacket layer outer lane, first card strip middle part all is provided with first through-hole. According to the utility model, the resin adhesive filled in the cavity inside the insulator core rod effectively bonds the outer sleeve layer, the interlayer and the sleeve, and the solidified resin adhesive combines the effects of the glue outlet holes, the first through hole, the second through hole and the circular hole groove, so that the vertical shear force influence among the structures of the insulator core rod is greatly weakened, the mechanical strength is improved, and the insulator core rod is worth of being widely popularized.

Description

Composite insulator core rod

Technical Field

The utility model relates to the technical field of insulator core rods, in particular to a composite insulator core rod.

Background

The insulator is a special insulating control part and can play an important role in an overhead transmission line, the insulator is mostly used for a telegraph pole in the early years, one end of a high-voltage wire connecting tower which is slowly developed is hung with a plurality of disc-shaped insulators, the insulators are made of glass or ceramics in order to increase creepage distance, the insulators are called insulators, the insulators cannot fail due to various electromechanical stresses caused by changes of environment and electric load conditions, otherwise, the insulators cannot play a great role, and the use and the service life of the whole line can be damaged.

The common insulator core rod has insufficient mechanical strength, and although the multi-layer sleeved structure enhances the insulativity, the capability of coping with the vertical shearing force is insufficient, thereby influencing the use safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a composite insulator core rod.

In order to achieve the purpose, the utility model adopts the following technical scheme: a composite insulator mandrel comprises an outer sleeve layer, the middle part of the outer sleeve layer is in threaded connection with a mandrel body, the bottom end of the mandrel body is in threaded connection with a lower connecting metal piece, four glue injection cavities are uniformly arranged on the periphery of the inner part of the side wall of the outer sleeve layer, four glue outlet holes are uniformly arranged in the middle of one circle of the side wall of the outer sleeve layer, the left end and the right end of the outer sleeve layer are fixedly connected with first clamping strips, the middle parts of the first clamping strips are respectively provided with a first through hole, the outer part of the outer sleeve layer is connected with an interlayer through resin glue, the left end and the right end of the interlayer inner ring are respectively provided with a first clamping groove, the front end and the rear end of the interlayer outer ring are respectively provided with a second clamping groove, the middle parts of the first clamping groove and the second clamping groove are both provided with second through holes, the outer part of the interlayer is connected with a sleeve through resin glue, the front end and the rear end of the inner ring of the sleeve are fixedly connected with second clamping strips, and round hole grooves are formed in the middle of the second clamping strips.

As a further description of the above technical solution:

the top end of the mandrel body is in threaded connection with an upper connecting metal piece.

As a further description of the above technical solution:

and the bolt body at the lower side of the lower connecting metal part is in threaded connection with a nut.

As a further description of the above technical solution:

and one end of the glue outlet hole close to the center of the outer sleeve layer is respectively connected with the middle part of the corresponding glue injection cavity and communicated with the middle part of the corresponding glue injection cavity.

As a further description of the above technical solution:

the central axes of the glue outlet holes at the left end and the right end, the first through holes at the left end and the right end and the second through holes at the left end and the right end are all positioned on the same straight line.

As a further description of the above technical solution:

the central axes of the glue outlet holes at the front end and the rear end, the second through holes at the front end and the rear end and the circular hole grooves at the front end and the rear end are all positioned on the same straight line.

As a further description of the above technical solution:

the first clamping strips are respectively and externally connected inside the first clamping grooves at the left end and the right end in a sliding mode, and the second clamping strips are respectively and slidably connected inside the second clamping grooves at the front end and the rear end.

The utility model has the following beneficial effects:

1. according to the utility model, the resin adhesive filled in the cavity inside the insulator core rod effectively bonds the outer sleeve layer, the interlayer and the sleeve, and the solidified resin adhesive combines the glue outlet holes, the first through hole, the second through hole and the circular hole groove, so that the vertical shearing force influence among the structures of the insulator core rod is greatly weakened, and the mechanical strength is improved.

2. According to the insulator core rod, the first clamping strip and the first clamping groove as well as the second clamping strip and the second clamping groove are utilized, the interlayer and the sleeve are sequentially sleeved outside the outer sleeve layer, then high-pressure resin glue is filled in the cavity inside the insulator core rod through the four glue filling cavities, the multi-layer structure effectively prevents the outer circle interface from permeating, the insulativity is improved, and the insulator core rod is worth of being widely popularized.

Drawings

Fig. 1 is a front sectional view of a composite insulator mandrel according to the present invention;

FIG. 2 is a cross-sectional view of a composite insulator mandrel in accordance with the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is a schematic perspective view of an outer jacket layer structure of a composite insulator mandrel according to the present invention;

fig. 6 is a schematic perspective view of a sandwich structure of a composite insulator mandrel according to the present invention;

fig. 7 is a schematic perspective view of a sleeve structure of a composite insulator core rod according to the present invention.

Illustration of the drawings:

1. a mandrel body; 2. an overcoat layer; 3. injecting a glue cavity; 4. a glue outlet hole; 5. a first clip strip; 6. a first through hole; 7. an interlayer; 8. a first card slot; 9. a second card slot; 10. a second through hole; 11. a second card strip; 12. a circular hole groove; 13. a sleeve; 14. an upper connecting metal piece; 15. a lower connecting metal piece; 16. and (4) a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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 thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-7, one embodiment of the present invention is provided: a composite insulator mandrel comprises an outer sleeve layer 2, the middle part of the outer sleeve layer 2 is in threaded connection with a mandrel body 1, the bottom end of the mandrel body 1 is in threaded connection with a lower connecting metal piece 15, the upper end and the lower end of the mandrel body 1 can be respectively connected with an upper connecting metal 14 and a lower connecting metal piece 15, the upper connecting metal and the lower connecting metal can be connected in a circuit for insulating use, four glue injection cavities 3 are uniformly arranged on the periphery of the inner side wall of the outer sleeve layer 2, four glue outlet holes 4 are uniformly arranged in the middle of the periphery of the side wall of the outer sleeve layer 2, first clamping strips 5 are fixedly connected to the left end and the right end of the outer ring of the outer sleeve layer 2, first through holes 6 are respectively arranged in the middle of each first clamping strip 5, an interlayer 7 is connected to the outer part of the outer sleeve layer 2 through resin glue, first clamping grooves 8 are respectively arranged at the left end and the right end of the inner ring of the interlayer 7, second clamping grooves 9 are respectively arranged at the front end and the rear end of the outer ring of the interlayer 7, second clamping grooves 10 are respectively arranged at the middle parts of the first clamping grooves 8 and the second clamping grooves 9, the outside of intermediate layer 7 is connected with sleeve 13 through the resin adhesive, and the equal fixedly connected with second card strip 11 in both ends around sleeve 13 inner circle, the middle part of both ends second card strip 11 all is provided with round hole recess 12 around, and the resin adhesive after solidifying combines each play gluey hole 4, first through-hole 6, second through-hole 10 and round hole recess 12's effect, very big weakening the perpendicular shear force influence between each structure of this insulator plug, improved mechanical strength.

The top end of the core rod body 1 is in threaded connection with an upper connecting metal 14, the lower side of the lower connecting metal 15 is in threaded connection with a screw cap 16, the screw cap 16 can be used for fixing the composite insulator on a tower, one end of the glue outlet hole 4 close to the center of the outer sleeve layer 2 is respectively connected with and communicated with the middle part of the corresponding glue injection cavity 3, the central axes of the glue outlet hole 4 at the left end and the right end, the first through hole 6 at the left end and the second through hole 10 at the left end and the right end are all on the same straight line, the central axes of the glue outlet hole 4 at the front end and the back end, the second through hole 10 at the front end and the back end and the circular hole grooves 12 at the front end and the back end are all on the same straight line, high-pressure resin glue is injected into the inner cavity of the insulator core rod through the four glue injection cavities 3, the resin glue flows through the glue outlet holes 4, the first through holes 6, the second through holes 10 and the circular hole grooves 12, so that the outer sleeve layer 2, the interlayer 7 and the interlayer 7 can be effectively bonded with the sleeve 13, the outside of the first clamping strip 5 is respectively connected inside the first clamping grooves 8 at the left end and the right end in a sliding mode, the second clamping strip 11 is respectively connected inside the second clamping grooves 9 at the front end and the rear end in a sliding mode, and the first clamping strip 5 and the first clamping grooves 8, the second clamping strip 11 and the second clamping grooves 9 can respectively limit rotation between the outer sleeve layer 2 and the interlayer 7 and between the interlayer 7 and the sleeve 13.

The working principle is as follows: firstly, the first clamping strip 5 is butted with the first clamping groove 8 and the second clamping strip 11 is butted with the second clamping groove 9, then the interlayer 7 and the sleeve 13 are sequentially sleeved outside the outer sleeve layer 2, high-pressure resin adhesive is injected into the cavity inside the insulator core rod through the four adhesive injection cavities 3, the resin adhesive flows through the adhesive outlet holes 4, the first through holes 6, the second through holes 10 and the circular hole grooves 12, the outer sleeve layer 2 and the interlayer 7 and the sleeve 13 are effectively bonded, the multi-layer structure effectively prevents the permeation of the outer circle interface, improves the insulating property, meanwhile, the solidified resin glue is combined with the glue outlet holes 4, the first through hole 6, the second through hole 10 and the circular hole groove 12, so that the vertical shear force influence among the structures of the insulator core rod is greatly weakened, the mechanical strength is improved, and finally the core rod body 1 can be connected into the outer sleeve layer 2 to form a complete composite insulator core rod.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a composite insulator plug, includes overcoat layer (2), its characterized in that: the middle part of the outer sleeve layer (2) is in threaded connection with a mandrel body (1), the bottom end of the mandrel body (1) is in threaded connection with a lower connecting metal piece (15), four glue injection cavities (3) are uniformly formed in one circle of the inner side wall of the outer sleeve layer (2), four glue outlet holes (4) are uniformly formed in the middle of one circle of the side wall of the outer sleeve layer (2), first clamping strips (5) are fixedly connected to the left end and the right end of the outer ring of the outer sleeve layer (2), first through holes (6) are formed in the middle of the first clamping strips (5), an interlayer (7) is connected to the outer part of the outer sleeve layer (2) through resin glue, first clamping grooves (8) are formed in the left end and the right end of the inner ring of the interlayer (7), second clamping grooves (9) are formed in the front end and the rear end of the outer ring of the interlayer (7), second through holes (10) are formed in the middle parts of the first clamping grooves (8) and the second clamping grooves (9), interlayer (7) outside is connected with sleeve (13) through the resin adhesive, the equal fixedly connected with second card strip (11) in both ends around sleeve (13) inner circle, both ends around the second card strip (11) the middle part all is provided with round hole recess (12).

2. The composite insulator mandrel of claim 1, wherein: the top end of the mandrel body (1) is connected with an upper connecting metal piece (14) in a threaded manner.

3. The composite insulator mandrel of claim 1, wherein: and a nut (16) is in threaded connection with the bolt body on the lower side of the lower connecting metal piece (15).

4. The composite insulator mandrel of claim 1, wherein: one end of the glue outlet hole (4) close to the center of the outer sleeve layer (2) is respectively connected with and communicated with the middle part of the corresponding glue injection cavity (3).

5. The composite insulator mandrel of claim 1, wherein: the central axes of the left and right glue outlet holes (4), the left and right first through holes (6) and the left and right second through holes (10) are all on the same straight line.

6. The composite insulator mandrel of claim 1, wherein: the central axes of the glue outlet holes (4) at the front end and the rear end, the second through holes (10) at the front end and the rear end and the circular hole grooves (12) at the front end and the rear end are all positioned on the same straight line.

7. The composite insulator mandrel of claim 1, wherein: the first clamping strips (5) are respectively and slidably connected to the inner portions of first clamping grooves (8) at the left end and the right end, and the second clamping strips (11) are respectively and slidably connected to the inner portions of second clamping grooves (9) at the front end and the rear end.