CN113669344B

CN113669344B - Fastening bolt assembly

Info

Publication number: CN113669344B
Application number: CN202110959425.5A
Authority: CN
Inventors: 师磊; 陈煜文; 高立东; 姜鹏; 朱向征; 程岳雷; 王沈征; 赵建文
Original assignee: State Grid Corp of China SGCC; TaiAn Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; TaiAn Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2023-06-27
Anticipated expiration: 2041-08-20
Also published as: CN113669344A

Abstract

The invention relates to a fastening bolt component, which comprises a bolt body, wherein the tail end of the bolt body is provided with a mounting hole, and the inner wall of the tail end of the mounting hole is provided with a first thread section; a plugging rod is arranged in the mounting hole, a plugging cap is sleeved at the tail end of the plugging rod, and a lead wire is inserted into the plugging cap; the head end of the plugging rod drives the bolt body to rotate through the mounting assembly; the tail end of the plugging rod is provided with a second thread section matched with the first thread section; the tail end of the plugging rod is provided with an operation hole, and the side wall of the operation hole is provided with two axisymmetric first slotted holes; two second slotted holes matched with the first slotted holes are formed in the side wall of the plugging cap, and two axisymmetric threading through holes are formed in the end face of the plugging cap; the two ends of the lead wire respectively pass through the threading through hole, the first slotted hole and the second slotted hole in sequence and then are encapsulated by lead sealing. The bolt body is mounted through the plugging rod; the lead wire is matched with the lead seal to realize the safe encapsulation of the plugging cap on the plugging rod, so that the possibility of bypassing the encapsulation to operate the bolt body is effectively reduced.

Description

Fastening bolt assembly

Technical Field

The invention belongs to the technical field of auxiliary accessories of power equipment, and particularly relates to a fastening bolt assembly.

Background

In power systems, screws on many devices are required to prevent removal in unauthorized situations, such as the case of a watch case screw. Such screws are typically provided with a circular hole in the head of the screw and a threaded hole is designed in the housing to mount a lead seal to prevent unauthorized removal. In other places where similar demands are made, lead seals cannot be mounted on the screw heads due to the limitations of the mounting conditions. Because the track of the lead wire passing through the accessory in the prior art is simple, the problem that the lead wire is difficult to find after the accessory is forcibly disassembled by bypassing the lead wire is caused.

Disclosure of Invention

The invention provides a fastening bolt component, which aims to solve the problem that a lead wire is difficult to find after forcibly disassembling an accessory by bypassing a lead wire because the track of the lead wire penetrating the accessory is simple in the prior art.

The invention is realized by the following technical scheme:

a fastening bolt assembly comprises a bolt body, wherein the tail end of the bolt body is provided with a mounting hole, and the tail end of the mounting hole

A first thread section is arranged on the inner wall of the sleeve;

a plugging rod is arranged in the mounting hole, a plugging cap is sleeved at the tail end of the plugging rod, and a lead wire is inserted into the plugging cap;

the head end of the plugging rod drives the bolt body to rotate through the mounting assembly; the tail end of the plugging rod is provided with a second thread section matched with the first thread section; the tail end of the plugging rod is provided with an operation hole, and the side wall of the operation hole is provided with two operation holes

A first slot hole which is axisymmetric;

two second slotted holes matched with the first slotted holes are formed in the side wall of the plugging cap, and two plugging-cap end faces are provided with two plugging-cap-shaped holes

Axisymmetric threading through holes;

and two ends of the lead wire respectively pass through the threading through hole, the first slotted hole and the second slotted hole in sequence and then are encapsulated by lead sealing.

The bolt body is mounted through the plugging rod; the lead wire is matched with the lead seal to realize the safe encapsulation of the plugging cap on the plugging rod, so that the possibility of bypassing the encapsulation to operate the bolt body is effectively reduced.

The invention further improves that the installation component comprises a limit boss, a guide groove and a guide protrusion; the limiting boss is arranged in the middle of the inner wall of the mounting hole; the guide grooves are arranged in a plurality and penetrate through the limiting boss; the guide protrusions are arranged on the side wall of the head end of the plugging rod, and the number of the guide protrusions is matched with that of the guide grooves. The bolt body is driven by the cooperation of the guide bulge and the guide groove.

The invention further improves that the head end face of the limiting boss is provided with a boss group matched with the guide grooves in number, the boss group comprises two guide bosses, and the two guide bosses are respectively arranged on two sides of the guide grooves. The difficulty of the guide bulge moving from the head end into the guide groove is increased through the guide bulges at the two sides of the guide groove; even if the package damage occurs, the difficulty of rotating the bolt body can be increased.

In addition, the distance from the second thread section to the guide protrusion is larger than the distance from the tail end edge of the mounting hole to the head end face of the limiting boss. The plugging rod enters the mounting hole, and after the guide protrusion passes through and leaves the guide groove, the second thread section starts to be screwed on the first thread section; providing an operating condition for the guide projection to pass through the guide slot.

The invention further improves that the plugging rods at the two sides of the second thread section are rod body structures with smooth surfaces and equal diameters; the inner surface of the limit boss is provided with a fitting part which is tightly fitted with the surface of the plugging rod. The blocking rod is contacted through the attaching part, so that the blocking rod is supported in the mounting hole, and particularly the blocking rod is fixed in the radial direction.

The invention further improves that the tail end of the inner surface of the limit boss is provided with a guide part for guiding the plugging rod to pass through. The convenience of the plugging rod penetrating through the limiting boss is improved through the guide part.

The invention further improves that the inner end face of the plugging cap is provided with a plugging bulge extending into the operation hole, two guide through holes are arranged in the plugging bulge, one port of the guide through holes is communicated with the threading through hole, and the other port of the guide through holes corresponds to the second slotted hole. The quick insertion operation of the lead wires is realized through the guide through holes with two ends corresponding to the threading through holes and the second slotted holes respectively.

In a further improvement of the invention, an annular first clamping part is arranged on the plugging rod at one side of the second thread section close to the tail end; the inner side wall of the plugging cap is provided with a second clamping part matched with the first clamping part; the first slotted hole is arranged on one side of the second thread section close to the tail end. The plugging cap is fastened and fixed at the tail end of the plugging rod through the cooperation between the first clamping part and the second clamping part.

In addition, the invention further improves that an operation part for rotating the plugging rod is arranged in the operation hole. The quick operation of the rotation of the plugging rod is realized through the operation part.

From the technical scheme, the beneficial effects of the invention are as follows: the bolt body is mounted through the plugging rod; the lead wire is matched with the lead seal to realize the safe encapsulation of the plugging cap on the plugging rod, so that the possibility of bypassing the encapsulation to operate the bolt body is effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic side view of an embodiment of the present invention.

Fig. 3 is a first schematic view of a cross section of a bolt body according to an embodiment of the invention.

Fig. 4 is a second schematic view of a cross section of a bolt body according to an embodiment of the invention.

Fig. 5 is a first schematic view of a limiting boss according to an embodiment of the present invention.

Fig. 6 is a second schematic view of a limiting boss according to an embodiment of the present invention.

Fig. 7 is a schematic view of a plugging rod structure according to an embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a plugging rod according to an embodiment of the invention.

Fig. 9 is a schematic cross-sectional view of a closure cap according to an embodiment of the present invention.

In the accompanying drawings: 1. bolt body, 11, mounting hole, 12, first screw thread section, 13, spacing boss, 131, guide way, 132, laminating portion, 133, guide portion, 134, guide protruding, 2, the shutoff cap, 21, the second slotted hole, 22, threading through-hole, 23, shutoff protruding, 231, guide through-hole, 24, second block portion, 3, lead wire, 4, plumb, 5, shutoff pole, 51, second screw thread section, 52, guide protruding, 53, operating hole, 54, first block portion, 55, first slotted hole.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the invention are intended to be within the scope of the patent protection.

As shown in the drawings, the fastening bolt assembly comprises a bolt body 1, wherein the side wall of the bolt body 1 is provided with external threads. The tail end of the bolt body 1 is provided with a mounting hole 11, and the inner wall of the tail end of the mounting hole 11 is provided with a first thread section 12; the middle part of the inner wall of the mounting hole 11 is provided with a limiting boss 13, and the limiting boss 13 is provided with a plurality of guide grooves 131 penetrating through the limiting boss 13. The inner wall of the limit boss 13 is provided with a fitting part 132 and a guide part 133; the attaching portion 132 is near the head end of the mounting hole 11, and the guiding portion 133 is near the tail end of the mounting hole 11. The front end face of the limiting boss 13 is provided with a boss set matched with the guide grooves 131 in number, the boss set comprises two guide bosses 134, and the two guide bosses 134 are respectively arranged on two sides of the guide grooves 131. The head end face of the bolt body 1 is conical. So as to form a mounting guide.

The installation hole 11 is internally provided with a plugging rod 5, the tail end of the plugging rod 5 is sleeved with a plugging cap 2, and a lead wire is inserted into the plugging cap 2. The side wall of the head end of the plugging rod 5 is provided with a guide protrusion 52 matched with the guide groove 131. When the guide projection 52 is positioned in the guide groove 131, the rotary plugging rod 5 drives the bolt body 1 to realize the disassembling and assembling operation of the bolt body 1. The tail end of the plugging rod 5 is provided with a second thread section 51 matched with the first thread section 12. The first thread segment 12 is matched with the second thread segment 51, so that the plugging rod 5 is fixed in the mounting hole 11. The plugging rods 5 at two sides of the second thread section 51 are rod body structures with smooth surfaces and equal diameters. The middle part of the plugging rod 5 contacts with the attaching part 132 to fix the plugging rod 5 in the inner radial direction of the mounting hole 11. The guide portion 133 provides guidance for the plugging rod 5 to pass through the limit boss 13.

The distance from the second thread section 51 to the guide projection 52 is greater than the distance from the tail end edge of the mounting hole 11 to the head end face of the limit boss 13. After the plugging rod 5 enters the mounting hole 11 and the guide protrusion 52 passes through and leaves the guide groove 131, the second threaded section 51 starts to be screwed on the first threaded section 12; providing an operating condition for the guide projection 52 to pass through the guide slot 131. The tail end of the plugging rod 5 is provided with an operation hole 53, and an operation part for rotating the plugging rod 5 is arranged in the operation hole 53. The blocking rod 5 is operated quickly by the operating part. Two axisymmetric first slotted holes 55 are arranged on the side wall of the operation hole 53; two second slotted holes 21 matched with the first slotted holes 55 are formed in the side wall of the plugging cap 2, and two axisymmetric threading through holes 22 are formed in the end face of the plugging cap 2; the inner end surface of the plugging cap 2 is provided with a plugging protrusion 23 extending into the operation hole 53, two guiding through holes 231 are arranged in the plugging protrusion 23, one port of the guiding through holes 231 is communicated with the threading through hole 22, and the other port corresponds to the second slotted hole 21. The two ends of the lead 3 respectively pass through the threading through hole 22, the first slot hole 55 and the second slot hole 21 in turn, and are encapsulated by lead sealing. The rapid insertion operation of the lead 3 is realized by the guide through holes 231 whose both ends respectively correspond to the threading through holes 22 and the second slot holes 21. The lead 3 is matched with the lead seal to realize safe encapsulation of the plugging cap 2 on the plugging rod 5, so that the possibility of bypassing the encapsulation to operate the bolt body 1 is effectively reduced.

The operation part is a straight groove or a cross groove arranged on the end face of the head end of the operation hole 53. The operation of the plugging rod 5 is realized by a screwdriver in a straight shape or a cross shape.

The operating portion is also an operating hole 53 in the shape of a polygon. The plugging rod 5 is operated by a multi-edge wrench.

An annular first clamping part 54 is arranged on the plugging rod 5 at one side of the second thread section 51 close to the tail end; the inner side wall of the plugging cap 2 is provided with a second clamping part 24 matched with the first clamping part 54; the first slot 55 is disposed on a side of the second thread segment 51 near the tail end. The plugging cap 2 is fastened and fixed at the tail end of the plugging rod 5 through the cooperation between the first fastening part 54 and the second fastening part 24.

In summary, when the device is used, the plugging rod 5 is inserted into the mounting hole 11 of the bolt body 1, the guide protrusion 52 is positioned in the middle of the guide groove 131, and the plugging rod 5 is operated to detach and mount the bolt body 1. The tail end of the bolt body 1 enters the part to be mounted, so that the difficulty in dismounting the bolt body 1 is improved. The plugging rod 5 moves towards the head end of the mounting hole 11, the guide protrusion 52 passes through the limit boss 13, at this time, the first thread section 12 and the second thread section 51 form a screw joint, and the plugging rod 5 behind the second thread section 51 is partially positioned outside the mounting surface to be mounted; the plugging cap 2 is sleeved at the tail end of the plugging rod 5 and is fixed by the cooperation of the first clamping part 54 and the second clamping part 24; the cap 2 is then turned to adjust the first slot 55 to correspond to the second slot 21. The two ends of the lead 3 respectively pass through the two threading through holes 22, the two first slotted holes 55 and the two second slotted holes 21 in sequence and then are wound, and the wound part of the lead 3 is encapsulated by lead sealing.

According to the fastening bolt assembly, the bolt body is installed through the plugging rod; the lead wire is matched with the lead seal to realize the safe encapsulation of the plugging cap on the plugging rod, so that the possibility of bypassing the encapsulation to operate the bolt body is effectively reduced.

In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments are only required to be referred to each other.

The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present invention and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The fastening bolt assembly is characterized by comprising a bolt body (1), wherein a mounting hole (11) is formed in the tail end of the bolt body (1), and a first thread section (12) is formed in the inner wall of the tail end of the mounting hole (11); a plugging rod (5) is arranged in the mounting hole (11), a plugging cap (2) is sleeved at the tail end of the plugging rod (5), and a lead wire is inserted into the plugging cap (2); the head end of the plugging rod (5) drives the bolt body (1) to rotate through the mounting assembly; the tail end of the plugging rod (5) is provided with a second thread section (51) matched with the first thread section (12); an operation hole (53) is formed in the tail end of the plugging rod (5), and two axisymmetric first slotted holes (55) are formed in the side wall of the operation hole (53); two second slotted holes (21) matched with the first slotted holes (55) are formed in the side wall of the plugging cap (2), and two axisymmetric threading through holes (22) are formed in the end face of the plugging cap (2); the two ends of the lead (3) respectively pass through the threading through hole (22), the first slotted hole (55) and the second slotted hole (21) in sequence and are encapsulated by lead sealing.

2. A fastening bolt assembly according to claim 1, wherein the mounting assembly comprises a limit boss (13), a guide slot (131) and a guide projection (52); the limit boss (13) is arranged in the middle of the inner wall of the mounting hole (11); the guide grooves (131) are provided with a plurality of guide grooves and are arranged on the limiting boss (13) in a penetrating manner; the guide protrusions (52) are arranged on the side wall of the head end of the plugging rod (5), and the number of the guide protrusions (52) is matched with that of the guide grooves (131).

3. A fastening bolt assembly according to claim 2, characterized in that the front end face of the limit boss (13) is provided with a boss set matching the number of the guide grooves (131), the boss set comprising two guide bosses (134), the guide bosses (134) being arranged on both sides of the guide grooves (131).

4. A fastening bolt assembly according to claim 2, wherein the distance from the second thread segments (51) to the guide projections (52) is greater than the distance from the trailing edge of the mounting hole (11) to the leading end face of the limit boss (13).

5. A fastening bolt assembly according to claim 2, wherein the plugging rods (5) on both sides of the second thread section (51) are of smooth-surfaced and constant-diameter rod body structure; the inner surface of the limit boss (13) is provided with a fitting part (132) which is tightly fitted with the surface of the plugging rod (5).

6. A fastening bolt assembly according to claim 5, characterized in that the tail end of the inner surface of the limit boss (13) is provided with a guide part (133) for guiding the plugging rod (5) to pass through.

7. A fastening bolt assembly according to any one of claims 1 to 6, wherein the inner end surface of the plugging cap (2) is provided with a plugging protrusion (23) extending into the operation hole (53), two guiding through holes (231) are arranged in the plugging protrusion (23), one port of the guiding through holes (231) is communicated with the threading through hole (22), and the other port is corresponding to the second slotted hole (21).

8. A fastening bolt assembly according to any one of claims 1 to 6, wherein the plugging rod (5) on the side of the second thread section (51) near the tail end is provided with a ring-shaped first clamping part (54); the inner side wall of the plugging cap (2) is provided with a second clamping part (24) matched with the first clamping part (54); the first slot hole (55) is arranged at one side of the second thread section (51) close to the tail end.