CN216161530U - Porcelain insulator subassembly - Google Patents

Abstract

The utility model provides a porcelain bottle assembly which comprises a porcelain bottle and a fixing piece, wherein the fixing piece comprises a bolt body, a sleeve, a first gasket, a first nut, a second gasket and a second nut, the bolt body comprises a bolt head, a cylindrical section, a first thread section, a fixing section and a second thread section, a cutting groove is formed in the position, close to the bolt head, of the sleeve, the bolt head is conical, the conical taper is smaller than or equal to 1:2, the inner diameter of the sleeve is the same as the outer diameter of the cylindrical section and is in clearance fit with the cylindrical section, a first nut cavity, a first thread cavity, a fixing cavity and a second nut cavity are formed in the porcelain bottle, and the fixing cavity is the same as the fixing section in shape and size and is in clearance fit with the fixing section. The utility model has the advantages of stable installation, convenient use, low cost and resource saving, and is suitable for the fixed installation of wall wires of cities, communities, villages and families.

Description

Porcelain insulator subassembly

Technical Field

The utility model belongs to the field of electric power facilities, and particularly relates to a porcelain insulator assembly.

Background

In life, people can see that wires on the walls of communities and villages are fixed on porcelain bottles with fixed frames. Although this kind of mode that adopts the mount to fix the vase is firm, nevertheless there is not enough: 1. the material cost and the labor cost are high; 2. the installation span is large, the electric wire is not attached to the wall surface, a plurality of space outside the wall is occupied, and the electric wire is messy; 3. the iron component is easy to rust, and the service life is reduced; 4. the expansion bolts of the fixing frame are difficult to remove.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a porcelain insulator assembly which is easy to install.

The technical scheme of the utility model is realized as follows: a porcelain insulator component comprises a porcelain insulator and a fixing part, wherein the fixing part comprises a bolt body, a sleeve, a first gasket, a first nut, a second gasket and a second nut, the bolt body comprises a bolt head, a cylindrical section, a first thread section, a fixing section and a second thread section, the outer diameter of the cylindrical section is the same as the major diameter of the first thread section, the cross section of the fixing section is square, the length of the diagonal line of the square is smaller than or equal to the minor diameter of the first thread section, the side length is larger than or equal to the major diameter of the second thread section, a cutting groove is formed in the position, close to the bolt head, of the sleeve, the taper of the bolt head is conical, the taper of the bolt head is smaller than or equal to 1:2, the inner diameter of the sleeve is the same as the outer diameter of the cylindrical section, and the sleeve and the first nut cavity and the first thread section are in clearance fit with each other, the porcelain insulator is provided with a first nut cavity for accommodating the first gasket and the first nut, and a first thread section, The fixed cavity and the second nut cavity for accommodating the second gasket and the second nut are the same as the fixed section in shape and size and are in clearance fit with each other.

The special porcelain bottle and the special expansion bolt are combined to enable the installation to be easy and reliable, mutual rotation between the porcelain bottle fixing cavity and the bolt body fixing section is prevented due to the arrangement of the porcelain bottle fixing cavity and the bolt body fixing section, the porcelain bottle and the fixing piece are connected into a whole through the second nut, the fixing piece is not exposed due to the arrangement of the second nut cavity, and the phenomenon that the fixing piece is rusted due to rain is avoided. The expansion bolt head in the prior art is short, namely the taper of the bolt head is far larger than 1:2, the wall of a sleeve is thin, and the inner diameter of the sleeve is far larger than the outer diameter of the bolt body; the fixing part is an improved expansion bolt, the bolt head adopts a long head, namely the taper of the bolt head is less than or equal to 1:2, and simultaneously, under the condition of meeting the assembly condition, the inner diameter of the sleeve is the same as the outer diameter of the bolt body as much as possible so as to increase the wall thickness of the sleeve to the maximum extent, wherein the wall thickness is more than 2 to 3 times of the wall thickness of the sleeve in the prior art, and the improved expansion bolt has the beneficial effects that: 1. when the bolt head is installed and used, after the bolt head is squeezed into the sleeve, the thicker the sleeve wall is, the larger the expansion amplitude is, the larger the expansion force is, the higher the stability is, and the bolt after being screwed is not easy to loosen and fall off. 2. The bolt head adopts a 'long head' structure, so that an installer can flexibly use expansion force on the wall of a drilled hole generated by expansion amplitude formed by different bolt head inclined surface sections acting on the sleeve according to the error of the wall drilled hole made of different materials to fasten the bolt. In actual use, the maximum expansion amplitude of the sleeve is generally not used for fixing the bolt, generally, the expansion amplitude is increased by screwing more nuts when the sleeve is soft or the drilled hole is larger, otherwise, the nuts can be screwed less, and a user can select different installation tightness. 3. The "long head" in combination with the "thick wall" construction also allows the expansion bolts of the present invention to be "tighter and tighter" because the expansion forces generated by the maximum expansion of the casing are generally not available, and most often are generated by the expansion of the mid-section of the head ramp and the casing front end. The bolt main body can be driven to move outwards when the fixed object moves outwards, and the bolt main body is fixed by the friction force between the sleeve and the wall of the drill hole, so that the bolt head can be further extruded into the sleeve to increase the expansion amplitude by moving outwards, the expansion force at the bolt head is automatically enhanced, the fastening degree is automatically improved, the bolt becomes stable, and the expansion bolt has the self-stabilizing function.

Further, the bolt head is provided with a rib, and the width of the rib close to the sleeve end is smaller than that of the cutting groove. The convex edges arranged in the expansion bolt are embedded into the cutting grooves, the sleeves can be driven to rotate together when the bolt is taken out, the bolt can be taken out easily, the taken-out expansion bolt can be reused due to small deformation of the sleeves, waste is reduced, and social resources are saved.

Preferably, the width of the other end of the rib is greater than the width of the end adjacent the sleeve. This arrangement facilitates the engagement of the rib in and close fit with the slot.

Further, the slot of the sleeve has a through slot extending to the other end of the sleeve. The arrangement of the through cutting groove can enable the sleeve to shrink due to the reduction of the drill hole when the bolt is knocked in, so that the applicability of the sleeve is improved, secondly, the sleeve can clamp the bolt main body through shrinkage, the nut can be screwed conveniently, the shaking is further reduced, thirdly, the sleeve can rotate along with the bolt main body when the bolt is taken out, the fixed screw layer fragments of the drill hole are scraped out through rotation, the fragments are contained, and the bolt can be taken out easily; the through-cut also serves to increase the tightness of the bolt by wedging a wedge from the drilling opening if necessary.

Furthermore, the outer surface of the sleeve is provided with an anti-rotation edge, and the height of the anti-rotation edge is less than or equal to 1 mm. This setting further prevents that the sleeve pipe from rotating for the drilling, has further improved the installation steadiness.

Preferably, the taper of the bolt head is 1:5, the number of the convex ribs, the number of the cutting grooves and the number of the rotation preventing ribs are 4, and the positions of the convex ribs correspond to the positions of the cutting grooves.

The utility model has the advantages of stable installation, convenient use, low cost and resource saving, and is suitable for the fixed installation of wall wires of cities, communities, villages and families.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the fastener structure;

FIG. 4 is a schematic view of the structure of the plug body;

FIG. 5 is a schematic view of the bolt head structure;

FIG. 6 is a view from direction A-A of FIG. 4;

FIG. 7 is a view from the direction B-B in FIG. 4;

FIG. 8 is a schematic view of a sleeve construction;

FIG. 9 is a schematic top view of FIG. 8;

FIG. 10 is a left side view of FIG. 8;

FIG. 11 is a schematic view of a porcelain insulator;

in the figure: 1-a fixing piece, 11-a bolt body, 111-a bolt head, 1111-a convex rib, 112 cylindrical sections, 113-a first thread section, 114-a fixing section, 115-a second thread section, 12-a sleeve, 121-a cutting groove, 1211-a through cutting groove, 122-an anti-rotation edge, 13-a first washer, 14-a first nut, 15-a second washer, 16-a second nut, 2-a porcelain bottle, 21-a first nut cavity, 22-a first thread cavity, 23-a fixing cavity and 24-a second nut cavity.

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.

The porcelain insulator assembly as shown in fig. 1 to 11 comprises a porcelain insulator 2 and a fixing member 1, wherein the fixing member 1 comprises a bolt body 11, a sleeve 12, a first washer 13, a first nut 14, a second washer 15 and a second nut 16, the bolt body 11 comprises a bolt head 111, a cylindrical section 112, a first thread section 113, a fixing section 114 and a second thread section 115, the outer diameter of the cylindrical section 112 is the same as the major diameter of the first thread section (113), the cross section of the fixing section 114 is square, the diagonal length of the square is less than or equal to the minor diameter of the first thread section 113, the side length is greater than or equal to the major diameter of the second thread section 115, the sleeve 12 is provided with 4 cutting grooves 121 near the end of the bolt head 111, one cutting groove 1211 extending to the other end of the sleeve 12, the outer surface of the sleeve 12 is provided with 4 anti-rotation ridges 122, the height h of the anti-rotation ridges 122 is 0.5mm, the bolt head 111 is conical, the conical degree of the conical degree is 1:5, the bolt head 111 is provided with 4 ribs 1111, the width b of the rib 1111 near the end of the sleeve 12 is smaller than the width a of the slot 121, the width c of the other end of the rib 1111 is larger than the width b near the end of the sleeve 12, the inner diameter of the sleeve 12 is the same as the outer diameter of the cylindrical section 112, and the two ribs are in clearance fit with each other, the porcelain bottle 2 is provided with a first nut cavity 21 for accommodating the first gasket 13 and the first nut 14, a first thread cavity 22 for accommodating the first thread section 113, a fixed cavity 23 and a second nut cavity 24 for accommodating the second gasket 15 and the second nut 16, and the fixed cavity 23 is the same as the fixed section 114 in shape and size, and the two ribs are in clearance fit with each other.

The working principle and the working process are as follows: during installation, the second nut 16 and the second washer 15 are taken out, the fixing piece 1 is knocked into a drill hole, the sleeve 2 is shrunk due to the through cutting groove 211 because the rotating and releasing edge 122 is higher than the surface of the sleeve 12 in the process, so that the sleeve is tightly attached to the cylindrical section 112 of the bolt body 11, the bolt body 11 is less prone to move, the first nut 14 is screwed, the bolt head 111 is squeezed into the sleeve 12 to expand, the fixing piece 1 is fastened, the porcelain bottle 2 is installed to be abutted against a wall, the second washer 15 and the second nut 16 are then installed, and the second nut 16 is screwed to complete installation; when the fixing piece 1 is removed, the second nut 16 is loosened, the porcelain bottle 2 is removed, the first nut 14 is loosened, the bolt body 11 is slightly knocked into the drill hole, the sleeve 12 is in a thick wall and is small in deformation and is still in an elastic deformation stage or a micro plastic deformation stage generally, the sleeve 12 is easy to shrink and restore, the bolt body 11 is rotated, the rib 1111 is in the cutting groove 121 and drives the sleeve 12 to rotate together, fragments of the fixing thread layer of the drill hole are rotatably scraped out, and the fragments are accommodated by the cutting groove 121 and the through cutting groove 1211, so that the fixing piece 1 is removed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides a vase subassembly, includes vase (2) and mounting (1), its characterized in that: the fixing piece (1) comprises a bolt body (11), a sleeve (12), a first gasket (13), a first nut (14), a second gasket (15) and a second nut (16), wherein the bolt body (11) comprises a bolt head (111), a cylindrical section (112), a first threaded section (113), a fixed section (114) and a second threaded section (115), the outer diameter of the cylindrical section (112) is the same as the major diameter of the first threaded section (113), the cross section of the fixed section (114) is square, the length of a diagonal line of the square is smaller than or equal to the minor diameter of the first threaded section (113), the length of the side is larger than or equal to the major diameter of the second threaded section (115), a cutting groove (121) is formed in the end, close to the bolt head (111), of the sleeve (12), the bolt head (111) is conical, the conical degree of the square is smaller than or equal to 1:2, the inner diameter of the sleeve (12) is the same as the outer diameter of the cylindrical section (112), and clearance fit each other, vase (2) are equipped with and hold first nut chamber (21), the holding of first packing ring (13) and first nut (14) first screw thread chamber (22), fixed chamber (23) and the holding of first screw thread section (113) second nut chamber (24) of second packing ring (15) and second nut (16), the shape size of fixed chamber (23) with fixed section (114) are the same, and clearance fit each other.

2. A vase assembly according to claim 1, wherein: the bolt head (111) is provided with a rib (1111), and the width (b) of the rib (1111) close to the end of the sleeve (12) is smaller than the width (a) of the cutting groove (121).

3. A vase assembly according to claim 2, wherein: the width (c) of the other end of the fin (1111) is greater than the width (b) of the end near the sleeve (12).

4. A vase assembly according to claim 3, wherein: the slit (121) of the sleeve (12) has a through slit (1211) extending to the other end of the sleeve (12).

5. A porcelain insulator assembly according to any one of claims 1 to 4, wherein: the outer surface of the sleeve (12) is provided with an anti-rotation ridge (122), and the height (h) of the anti-rotation ridge (122) is less than or equal to 1 mm.

6. A vase assembly according to claim 1, wherein: the taper of the bolt head (111) is 1: 5.

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