CN217562311U - Bolt assembly and insulator mounting structure - Google Patents

Abstract

The utility model provides a bolt assembly and insulator mounting structure. The insulator includes: a bolt head; screw rod: a thread section is arranged along the outer peripheral wall of the screw rod integrally with the bolt head; a plane section is arranged on the outer peripheral wall of the screw at the position of the thread section along the axial direction of the screw; at least one scale mark is arranged on the plane section. The insulator comprises a main body part made of an insulating material, wherein metal inserts are arranged on two symmetrical sections of the main body part, and the metal inserts are provided with internal threads; the screw bolt can be installed at the threaded column hole of the installation plate, and the screw rod of the bolt assembly can be inserted into the threaded hole of the second metal insert. And the installation of the insulator is fastened by rotating the bolt assembly. The utility model provides a bolt with scale, the scale bolt can improve processing on standard bolt basis and form low in production cost. The bolt assembly can be used for auxiliary installation of the insulator, and damage to the surface of the insulator caused by the metal sleeve can be avoided.

Description

Bolt assembly and insulator mounting structure

Technical Field

The utility model relates to a fastener technical field, concretely relates to bolt assembly.

Background

In the prior art, a bolt assembly is mainly used as a fixed connecting piece between different assemblies, and other functions are not researched.

In electrical equipment, often use the insulator, its main effect lies in supporting the electric conductor, like copper bar, binding post etc. and the insulator tip is the screw hole inserts or the screw thread post inserts that metal material made, and the intermediate part is non-metallic insulation material, and the forming mode between the three is mould integrated into one piece usually.

The insulator is typically connected to a mounting plate of the device, respectively to a threaded post and a threaded bore of the mounting plate.

In order to ensure the reliability of the insulator, the insulator needs to be torqued, a sleeve with a large size needs to be used for operation, the sleeve is made of metal, and the insulator is made of nonmetal (such as DMC (polycarbonate) plastic, BMC (bulk molding compound) plastic, ceramic and the like), so that the sleeve can cause indentation and scratch on the surface of the insulator under the action of the torque.

If the insulator is installed by other auxiliary elements, how to solve the matching between the auxiliary elements and the insulator and ensure the installation and fastening degree of the insulation component are problems to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the above technical problem, provide a bolt assembly and carry out the insulator mounting structure of insulator installation as auxiliary component with the help of bolt assembly.

In order to achieve the above object, some embodiments of the present invention provide the following technical solutions:

a bolt assembly, comprising:

a bolt head;

screw rod: a thread section is arranged along the outer peripheral wall of the screw rod integrally with the bolt head; a plane section is arranged on the outer peripheral wall of the screw at the position of the thread section along the axial direction of the screw; at least one scale mark is arranged on the plane section.

The utility model discloses in some embodiments, be provided with both sides plane section along the radial symmetry of screw rod, all be provided with the scale mark on every plane section.

In some embodiments of the utility model, the symmetry is provided with the scale mark on the plane section of both sides.

The utility model discloses in some embodiments, further include lock nut, can match the installation with the screw rod.

In some embodiments of the present invention, three scale marks are provided on the plane section, and after the end surface of the lock nut on the side close to the bolt head is aligned with the first mark position, the distance between the end surface of the lock nut on the side far away from the bolt head and the screw head is 0.8 times of the diameter of the screw; after the end surface of the locking nut close to the bolt head is aligned with the second mark position, the distance between the end surface of the locking nut far away from the bolt head and the screw head is 1 time of the diameter of the screw; after the end surface of the locking nut close to one side of the bolt head is aligned with the third mark position, the distance between the end surface of the locking nut far away from one side of the bolt head and the screw head is 1.2 times of the diameter of the screw.

Some embodiments of the present invention further provide an insulator mounting structure, including a mounting plate, on which a threaded post hole is provided;

the insulator comprises a main body part made of an insulating material, wherein metal inserts are arranged on two symmetrical sections of the main body part, and the metal inserts are provided with internal threads; the screw bolt can be installed at the threaded column hole of the installation plate, and the screw rod of the bolt assembly can be inserted into the threaded hole of the second metal insert.

The utility model discloses in some embodiments, the screw rod is installed behind second metal insert, and the screw rod head is the clearance setting with second metal insert bottom.

Compared with the prior art, the utility model discloses technical scheme's beneficial effect lies in:

1. the bolt with the scales is provided, the scale bolt can be formed by improving and processing a standard bolt, and the production cost is low.

2. The insulator mounting method can be used for auxiliary mounting of the insulator. The scheme can realize reliable connection of the insulator, can avoid any damage to the surface of the insulator caused by the metal sleeve, avoid the performance and the structure damage of the insulator caused by tool operation, and improve the reliability and the safety of the insulator; the product appearance can be improved, and the product quality is improved; the scale on the surface of the bolt is provided with a plurality of scale marks for quickly identifying the depth of the thread screwed into the insulator, and the operation is convenient and quick.

3. The scheme has wide application range and can be widely applied to the condition of the non-metal surface insulator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic view of an insulator structure;

FIG. 2 is a schematic view of an insulator structure;

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

fig. 4 is a schematic view of an insulator mounting structure;

fig. 5 is a schematic view of an insulator mounting structure;

fig. 6 is a schematic view of an insulator mounting structure;

fig. 7 is a schematic structural view of a bolt assembly provided by the present invention;

fig. 8 is a schematic structural view of a bolt assembly provided by the present invention;

FIG. 9 is a schematic diagram of a first flag bit position structure;

FIG. 10 is a diagram illustrating a second exemplary mark location structure;

FIG. 11 is a schematic diagram of a third flag bit position structure;

FIG. 12 is a schematic view of the bolt assembly and insulator;

FIG. 13 is an enlarged view of a portion of FIG. 12;

fig. 14 is a schematic structural view of an insulator mounting step;

fig. 15 is a schematic structural view of an insulator fastening step;

fig. 16 is a view showing a state where the insulator is removed;

fig. 17 shows the insulator mounting completed state.

Wherein:

1-bolt head;

2-screw, 201-threaded section, 202-plane section, 203-scale mark, 2031-first mark position, 2032-second mark position, 2033-third mark position;

3-locking the nut;

4-mounting a plate;

5-a threaded hole;

6-insulator, 601-main body part, 602-first metal insert, 603-second metal insert;

7-a stud;

801-handle one, 802-handle two;

9-a fastening wrench;

10-fit clearance;

11-fitting size.

Detailed Description

In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The utility model provides a bolt assembly is different with traditional bolt assembly, has designed the identification structure.

Specifically, the bolt assembly includes the bolt head 1 and the screw rod 2 that are in an organic whole, and this belongs to common bolt structure, and the perplexing is not repeated. The bolt assembly can be used in cooperation with the nut 3, the material of the bolt and the nut 3 is preferably carbon steel, the performance grade of the nut 3 is 8 grades or higher, and the performance grade of the bolt assembly is 8.8 grades or higher.

Referring to fig. 7 and 8, in the present invention, a thread section 201 is provided along the outer circumferential wall of the screw rod 2; a plane section 202 is arranged on the outer peripheral wall of the screw at the position of the thread section 201 along the axial direction of the screw 2; at least one scale mark 203 is provided on the planar section 202. The scale marks 203 are scale lines.

The utility model discloses in some embodiments, be provided with both sides plane section 202 along screw rod 2 radial symmetry, all be provided with the scale mark on every plane section 202.

The utility model discloses in some embodiments, the symmetry is provided with scale mark 203 on the plane section 202 of both sides, lies in can guaranteeing the symmetry and adjusts.

Referring to fig. 9 to 11, in some embodiments of the present invention, the plane section 202 is provided with three scale marks, the distance between the first mark position 2031 and the screw head is 0.8 times of the screw diameter, the distance between the second mark position 2032 and the screw head is 1 times of the screw diameter, and the distance between the third mark position 2033 and the screw head is 1.2 times of the screw diameter. The screw head herein refers to a head of the screw 2 on a side away from the bolt head 1, and the first mark position 2031, the second mark position 2032, and the third mark position 2033 are sequentially adjacent to the bolt head 1. The index bit represents the depth at which the bolt described later can be screwed into the threaded hole.

After the scale marks are added, the screwing distance of the screw rod 2 is convenient to control.

Some embodiments of the utility model further provide an insulator mounting structure, including mounting panel 4, mounting panel 4 is provided with threaded post hole 5 on it.

Referring to fig. 1 to 3, the insulator 6 includes a main body 601 made of an insulating material, wherein two symmetrical sections of the main body 601 are provided with metal inserts, and the metal inserts have internal threads; the stud 7 can be mounted at the first metal insert 602, and the stud 7 can be mounted at the threaded stud hole 5 of the mounting plate 4.

The prior art mounting structure of the insulator 6 is shown in fig. 4 to 6.

The stud 7 is attached to the threaded stud hole 5, and the insulator 6 is fixed by rotating the outside of the body 601 of the insulator 6 with a fastening wrench 9.

In this embodiment, the bolt assembly is used in cooperation with the second metal insert 603, and is installed at the threaded hole of the second metal insert 603, so that the insulator 6 can be fixed by rotating the bolt assembly.

The utility model discloses some embodiments, further include lock nut 3, can match the installation with screw rod 2.

In some embodiments, the screw 2 is installed behind the second metal insert 603, and the screw head is a fitting gap 10 with the bottom of the second metal insert 603, and the gap is preferably 2mm.

Hereinafter, a specific use of the bolt assembly is specifically described.

1. Preassembly of the insulator 6: firstly, the mounting plate 4 is fixed, then the insulator 6 and the threaded hole or the threaded column of the mounting plate 4 are preliminarily assembled, at the moment, the assembly between the insulator 6 and the mounting plate 4 is not firm, and the reliable connection can be realized only after the insulator is subsequently screwed by a torque wrench (note: the insulator with the double threaded holes is taken as an example for explanation hereinafter).

2. Preassembling a bolt assembly: the bolt assembly is assembled according to the mode shown in fig. 12 and 13, and a certain fit clearance 10 is left between the bottom of the screw rod 2 and the bottom of the thread of the second metal insert 603, the clearance should be more than or equal to 2mm, and the fit size 11 of the insulator thread hole is more than or equal to 0.8d. The specific matching size 11 is calculated according to the depth size of the threaded hole, and a proper position of the scale mark is selected for installation.

The selection of the scale lines is shown in the following table:

the deeper the thread fit, the more reliable the thread fit, and the longer the life of the bolt assembly, so in use, the preferred graduation marks are recommended.

Taking an M8 insulator as an example for checking, if the hole depth is 9mm, the maximum value of the depth of screwing the bolt into the insulator is 7mm, and the 7mm is between 0.8d and 1d, and the 1 st scale of 0.8d should be selected for assembly; if the depth is 11mm, the scale of 0.8d or the scale of 1d can be selected for assembly, 1d is preferentially selected, and if the depth is 13mm, the scale of 0.8d or 1d or 1.2d can be selected for assembly, and 1.2d is preferentially selected.

3. And (3) locking the nut 3, the insulator 6 and the scale bolt: as shown in fig. 14, the bolt head 1 is clamped by the first wrench 801, the first handle 801 is kept still, and then the second wrench 802 is used to rotate the nut 3 by force, so that the nut 3 rotates clockwise to make the nut 3 and the insulator 6 tightly contact, thereby realizing the mutual locking among the nut 3, the insulator 6 and the screw 2.

4. Tightening the insulator: as shown in fig. 15, the insulator 6 is tightened by applying a torque to the bolt head 1 with a fastening wrench 9 in a clockwise direction to rotate the insulator 6, the nut 3, and the screw rod 2 in synchronization with each other.

5. Disassembling the bolt assembly: as shown in fig. 16, the bolt head 1 is held by the first wrench 801, the handle is kept still, then the second wrench 802 is used to rotate the nut 3 with force in the counterclockwise direction to loosen the nut 3 and the insulator 6, and finally the assembly is dismounted by hand.

The effect of the tightened insulator 6 is shown in fig. 17, where the insulator 6 is securely connected to the mounting plate 4.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. A bolt assembly, comprising:

a bolt head;

screw rod: a thread section is arranged along the outer peripheral wall of the screw rod integrally with the bolt head; a plane section is arranged on the outer peripheral wall of the screw at the position of the thread section along the axial direction of the screw; at least one scale mark is arranged on the plane section.

2. The bolt assembly of claim 1, wherein two planar sections are symmetrically arranged along the radial direction of the screw, and each planar section is provided with scale marks.

3. The bolt assembly of claim 2, wherein the planar sections of the two sides are symmetrically provided with scale marks.

4. The bolt assembly of claim 1, further comprising a lock nut matingly mountable to the threaded shank.

5. The bolt assembly according to claim 4, wherein the planar section is provided with three scale marks, and after the end surface of the locking nut on the side close to the bolt head is aligned with the first mark position, the distance between the end surface of the locking nut on the side far away from the bolt head and the screw head is 0.8 times of the diameter of the screw; after the end surface of the locking nut close to the bolt head is aligned with the second mark position, the distance between the end surface of the locking nut far away from the bolt head and the screw head is 1 time of the diameter of the screw; after the end surface of the locking nut close to one side of the bolt head is aligned with the third mark position, the distance between the end surface of the locking nut far away from one side of the bolt head and the screw head is 1.2 times of the diameter of the screw.

6. An insulator mounting structure is characterized by comprising a mounting plate, wherein a threaded column hole is formed in the mounting plate;

the insulator comprises a main body part made of an insulating material, wherein metal inserts are arranged on two symmetrical sections of the main body part, and the metal inserts are provided with internal threads; the threaded hole of the first metal insert can be provided with a stud, the stud can be arranged at the threaded hole of the mounting plate, and the screw rod of the bolt assembly in any one of claims 1-5 can be inserted into the threaded hole of the second metal insert.

7. An insulator mounting structure according to claim 6, wherein the screw is mounted on the second metal insert with a head portion thereof spaced from a bottom portion of the second metal insert.

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