CN112439138B - Insulating hook, insulating brake rod for hook and manufacturing method of insulating hook - Google Patents

Insulating hook, insulating brake rod for hook and manufacturing method of insulating hook Download PDF

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Publication number
CN112439138B
CN112439138B CN201910825659.3A CN201910825659A CN112439138B CN 112439138 B CN112439138 B CN 112439138B CN 201910825659 A CN201910825659 A CN 201910825659A CN 112439138 B CN112439138 B CN 112439138B
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China
Prior art keywords
insulating
section
insulating layer
core
core material
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CN201910825659.3A
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Chinese (zh)
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CN112439138A (en
Inventor
洪暐杰
王嘉贤
郑雅骏
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Yoke Industrial Corp
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Yoke Industrial Corp
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Priority to CN201910825659.3A priority Critical patent/CN112439138B/en
Publication of CN112439138A publication Critical patent/CN112439138A/en
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0006Harnesses; Accessories therefor
    • A62B35/0025Details and accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/021Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
    • B29C39/025Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps for making multilayered articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/10Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22Component parts, details or accessories; Auxiliary operations
    • B29C39/26Moulds or cores
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/727Fastening elements

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The insulating hook is characterized in that the free end of the insulating brake rod comprises a first insulating section and a second insulating section, and the color of the second insulating section is different from that of the first insulating section; the insulation limiting sleeve can move along the axial direction of the insulation brake rod; when the free end of the insulating brake rod abuts against the abutting part of the insulating main body and the insulating limiting sleeve completely covers the second insulating section, the insulating limiting sleeve is located at a safe position, and the insulating brake rod cannot freely pivot; otherwise, if the insulation limiting sleeve exposes at least one part of the second insulation section, the insulation limiting sleeve is located at the warning position. The user accessible whether can directly see the colour of second insulating section to judge whether the insulating spacing sleeve of insulating pothook has adjusted to safe position, and then ensure user's personal safety. An insulated brake bar and a method for manufacturing the same are also disclosed.

Description

Insulating hook, insulating brake rod for hook and manufacturing method of insulating brake rod
Technical Field
The invention relates to a hook; in particular to an insulating hook, an insulating brake bar for the hook and a manufacturing method thereof.
Background
For the high-altitude workers or the extreme sports players, safety belts and safety hooks are widely used in the related fields of operation, and have direct influence on the life safety of the users.
For example, high-altitude workers (e.g., construction workers, electric power repairers, high-rise glass cleaners, etc.) must perform specific work at high altitude for a long time due to work needs, and must wear safety guards (e.g., safety helmets, the above-mentioned safety belts and safety hooks, etc.) according to safety regulations; however, even if the high-altitude operation personnel wear the safety protection tool according to the safety rule, the worker safety accident that the high-altitude operation personnel fall still happens from time to time, and the life and property loss of the personnel is caused.
In addition, extreme sports paradigms in recent years (e.g., high-altitude bounces, gliders, high-altitude parachutes, etc.) have attracted many players to attempt such risky sports; however, in news reports, it is sometimes seen that the extreme sports players are accidentally dropped due to the careless check of the safety device, which causes serious personal injury and even death.
The detailed inspection of the reasons indicates that the safety hooks of the safety protectors or the safety devices are not fastened correctly according to the regulations, so that when the high-altitude operation personnel carry out high-altitude operation or the extreme sports players carry out extreme sports, the safety hooks of the safety protectors or the safety devices are loosened, and further the falling accidents of the high-altitude operation personnel or the extreme sports players occur.
Therefore, the general safety clasp still has obvious defects, and a solution is needed.
Disclosure of Invention
In view of the above, the present invention is directed to an insulating hook, which is convenient for a user to easily identify whether the insulating hook is correctly locked in a safe state through a simple safety check method by using different colors of a second insulating section and a first insulating section, so as to ensure the personal safety of the user.
The present invention provides an insulating hook, which comprises: an insulating main body, having a pivot part and a butt part respectively located at two different ends of the insulating main body; an insulating brake rod having a pivot end, a free end and an external thread section, wherein the external thread section is located between the pivot end and the free end; the insulated gate rod is pivoted to the pivoting part of the insulated main body by the pivoting end, so that the insulated gate rod can swing in a pivoting manner relative to the insulated main body; the free end can be operatively abutted against or away from the abutting part of the insulating main body; the free end comprises a first insulating section and a second insulating section, the second insulating section is positioned between the first insulating section and the external thread section, and the color of the second insulating section is different from that of the first insulating section; and an insulation limit sleeve having an internal thread section, the insulation limit sleeve being sleeved on the insulation brake rod, the internal thread section being screwed with the external thread section of the insulation brake rod, and the insulation limit sleeve being operable to rotate so that the insulation limit sleeve moves along the axial direction of the insulation brake rod; when the free end is abutted against the abutting part of the insulating main body and the insulating limit sleeve completely covers the second insulating section of the insulating brake rod and covers at least one part of the abutting part of the insulating main body, the insulating limit sleeve is defined to be located at a safe position and the insulating brake rod cannot freely pivot; when the free end is abutted against the abutting part of the insulating main body and the insulating limit sleeve exposes at least one part of the second insulating section of the insulating brake rod, the insulating limit sleeve is defined to be located at a warning position.
Another objective of the present invention is to provide an insulating brake lever for a hook, comprising a brake lever core, a first insulating layer and a second insulating layer, wherein the brake lever core comprises a free end and a pivot end, the first insulating layer is disposed on the surface of the brake lever core, and the first insulating layer forms an external thread section between the free end and the pivot end; the first insulating layer comprises a first insulating section and a second insulating section at the free end, the second insulating section is located between the first insulating section and the external thread section, the first insulating layer covers the brake bar core material corresponding to the first insulating section and a part of the brake bar core material corresponding to the second insulating section, the second insulating layer covers the first insulating layer and the brake bar core material corresponding to the second insulating section, and the color of the second insulating section is different from that of the first insulating section.
A further object of the present invention is to provide a method for manufacturing an insulating brake bar for a grab, comprising at least the following steps:
providing a core material and a first mold, wherein the core material is arranged in a first mold cavity of the first mold, the core material is provided with a first core material section, a second core material section and a third core material section, and the first mold cavity is provided with a first area, a second area and a third area; wherein the first core segment is disposed in the first region, the second core segment is disposed in the second region, and the third core segment is disposed in the third region; a first pouring space is arranged between the first core material section and the inner wall of the first area, a second pouring space is arranged between the second core material section and the inner wall of the second area, a third pouring space is arranged between the third core material section and the inner wall of the third area, and the second pouring space is communicated with the first pouring space and the third pouring space;
pouring a first insulating material into the first mold cavity, wherein the first insulating material fills the first pouring space, the second pouring space and the third pouring space to form a first insulating layer on the surface of the core material so as to obtain an intermediate body;
the intermediate body is provided with a first intermediate body section, a second intermediate body section and a third intermediate body section, when the intermediate body is arranged in a second cavity of the second mold, the first intermediate body section and the third intermediate body section are in close contact with the inner wall of the second cavity, and a fourth pouring space is arranged between the second intermediate body section and the inner wall of the second cavity; and
and pouring a second insulating material into the fourth pouring space, wherein the second insulating material fills the fourth pouring space, and a second insulating layer is formed on the surfaces of the first insulating layer and the core material corresponding to the second intermediate body section so as to obtain the insulating brake bar.
The invention has the advantages that through the different colors of the second insulating section and the first insulating section and the simple and convenient safety check method, a user can easily identify whether the insulating hook is correctly locked into a safety state, and further the personal safety of the user is ensured. In addition, the whole outer surface of the insulating hook provided by the invention is coated by an insulating material so as to avoid the inductive or conductive condition of the hook and further provide further safety protection for electric power maintenance personnel.
Drawings
Fig. 1 is a perspective view of an insulating hook according to a preferred embodiment of the present invention.
Fig. 2 is an exploded view of the insulating hook of fig. 1.
Fig. 3A is a schematic view of the insulating main core of the hook of the preferred embodiment of the present invention.
Fig. 3B is a schematic diagram of a portion of the core material of the insulation main body being covered by the insulation layer according to a preferred embodiment of the invention.
Fig. 3C is a schematic view of another part of the core material of the insulating main body being covered by the insulating layer according to a preferred embodiment of the invention.
Fig. 4 is a flow chart of a method for manufacturing an insulating gate rod of a hook according to a preferred embodiment of the present invention.
FIG. 5A is a schematic view of an insulating brake rod core according to a preferred embodiment of the present invention.
FIG. 5B is a schematic view of a portion of the core material of the insulated gate rod covered by the first insulating layer according to a preferred embodiment of the present invention.
FIG. 5C is a schematic view of another portion of the core material and a portion of the first insulating layer of the insulating brake bar being covered by the second insulating layer according to a preferred embodiment of the present invention.
Fig. 6A is a schematic structural view illustrating the core material of the insulating brake bar cooperating with the first mold according to a preferred embodiment of the present invention.
Fig. 6B is a cross-sectional view of fig. 6A.
Fig. 7A is a schematic structural view of the intermediate body of the insulating brake bar cooperating with the second mold according to a preferred embodiment of the present invention.
Fig. 7B is a cross-sectional view of fig. 7A.
Fig. 8A is a schematic view of the core material of the insulating position-limiting sleeve of the hook according to a preferred embodiment of the present invention.
Fig. 8B is a schematic view of a portion of the core material of the insulation limiting sleeve covered by the first insulation layer according to a preferred embodiment of the invention.
Fig. 8C is a schematic view of another part of the core material and a part of the first insulating layer of the insulation limiting sleeve being covered by the second insulating layer according to a preferred embodiment of the invention.
Fig. 9A is an exploded view of a portion of the insulating hook of fig. 1.
Fig. 9B is a partially enlarged view of fig. 9A.
Detailed Description
Referring to fig. 1, fig. 2 and fig. 9A, fig. 1 is a perspective view of an insulating hook 1 according to a preferred embodiment of the present invention, fig. 2 is an exploded view of the insulating hook 1 shown in fig. 1, and fig. 9A is an exploded view of a part of the insulating hook 1 shown in fig. 1. In fig. 1, 2 and 9A, the insulating hook 1 includes an insulating main body 10, an insulating brake rod 20, an insulating position-limiting sleeve 30 and a pivot 40.
The insulating body 10 has a pivot portion 12 and an abutting portion 14 respectively located at two different ends of the insulating body 10. The insulating brake rod 20 has a pivot end 22, a free end 24 and an externally threaded section 26, wherein the externally threaded section 26 is located between the pivot end 22 and the free end 24.
The insulated gate rod 20 is pivotally connected to the pivotal portion 12 of the insulated body 10 by a pivotal end 22, so that the insulated gate rod 20 can swing pivotally relative to the insulated body 10. The free end 24 is operatively abutted against or remote from the abutment 14 of the insulating body 10. The free end 24 includes a first insulating section 242 and a second insulating section 244, wherein the second insulating section 244 is located between the first insulating section 242 and the external thread section 26, and the color of the second insulating section 244 is different from the color of the first insulating section 242.
The insulation limit sleeve 30 is sleeved on the insulation brake rod 20. The insulation limit sleeve 30 has an internal thread section (not shown) that is screwed with the external thread 26 section of the insulation brake lever 20. The insulator limit sleeve 30 is operable to rotate to move the insulator limit sleeve 30 in the axial direction AX of the insulator brake rod 20.
When the free end 24 abuts against the abutting portion 14 of the insulating main body 10 and the insulating limiting sleeve 30 completely covers the second insulating section 244 of the insulating brake rod 24 and covers at least a portion of the abutting portion 14 of the insulating main body 10, the insulating limiting sleeve 30 is defined to be located at a safety position, as shown in fig. 1, and the insulating brake rod 30 cannot freely pivot. When the free end 24 abuts against the abutting portion 14 of the insulating main body 10 and the insulation limiting sleeve 30 exposes at least a portion of the second insulation section 244 of the insulating brake rod 20, the insulation limiting sleeve 244 is defined to be located at an alarm position, as shown in fig. 9A. In the embodiment of the present invention, through the different colors of the second insulating section 244 and the first insulating section 242 and the simple safety check method, the user can easily identify whether the insulating hook 1 is correctly locked in the safety state, thereby ensuring the personal safety of the user. In addition, the whole outer surface of the insulating hook 1 provided by the invention is covered by the insulating material, so that the inductive or conductive condition of the hook 1 is avoided, and further safety protection is provided for electric power maintenance personnel.
In the embodiment of the present invention, when the free end 24 of the insulating brake rod 20 abuts against the abutting portion 14 of the insulating main body 10 and the insulating limiting sleeve 30 is located at the warning position, at least a portion of the second insulating section 244 of the insulating brake rod 20 is exposed by the insulating limiting sleeve 30, and the free end 24 of the insulating brake rod 20 cannot firmly abut against the abutting portion 14 of the insulating main body 10.
In the embodiment of the present invention, the free end 24 of the insulating brake rod 20 abuts against the abutting portion 14 of the insulating main body 10, and when the insulating limiting sleeve 30 is located at the warning position, at least a portion of the second insulating section 244 of the insulating brake rod 20 is exposed by the insulating limiting sleeve 30, and the insulating brake rod 20 can freely pivot with respect to the insulating main body 10.
Referring to fig. 3A to 3C, the insulation main body 10 includes a main core 11 and a main insulation layer 13, wherein the main insulation layer 13 covers the main core 11. The body insulating layer 13 does not completely cover the body core 11 of the insulating body 10 at the abutting portion 14, leaving a part of the body core 11 at the abutting portion 14 exposed to the outside, as shown in fig. 3C. In fig. 3A, the main core 11 includes the pivoting portion 12 and the abutting portion 14, and the abutting portion 14 has an outer surface 142; next, in fig. 3B, the left half of the body core 11 is clamped in a mold (not shown), the right half of the body core 11 is suspended in the mold, and the insulating layer 13 is formed on the surface of the right half of the body core 11; next, in fig. 3C, the right half of the main body core 11 coated with the insulating layer 13 is held in another mold, the left half of the main body core 11 is suspended in the other mold, and the insulating layer 13 is formed on the surface of the left half of the main body core 11. Wherein a portion of the outer surface 142 of the abutment portion 14 of the insulating body 10 is not covered by the insulating layer 13 and is exposed to the outside.
Referring to fig. 4 to 7B, fig. 4 is a flow chart of a method for manufacturing an insulating brake bar of a hook according to a preferred embodiment of the present invention, which includes at least the following steps:
step S01: a core 21 of an insulating brake bar 20 and a first mold 50 are provided, the core 21 is disposed in a first cavity 52 of the first mold 50. The core 21 has a first core section 212, a second core section 214 and a third core section 216, and the first cavity 52 has a first region, a second region and a third region, wherein the first core section 212 is disposed in the first region, the second core section 214 is disposed in the second region, and the third core section 216 is disposed in the third region. A first casting space 522 is arranged between the first core material section 212 and the inner wall of the first area, a second casting space 524 is arranged between the second core material section 214 and the inner wall of the second area, and a third casting space 526 is arranged between the third core material section 216 and the inner wall of the third area, wherein the second casting space 524 is communicated with the first casting space 522 and the third casting space 526;
step S02: pouring a first insulating material into the first mold cavity 52, wherein the first insulating material fills the first pouring space 522, the second pouring space 524 and the third pouring space 526 to form a first insulating layer 23 on the surface of the core material 21, so as to obtain an intermediate body 21', as shown in fig. 5B;
step S03: the intermediate body 21 'has a first intermediate body section 212', a second intermediate body section 214', and a third intermediate body section 216', and when the intermediate body 21 'is disposed in the second cavity 62 of the second mold 60, the first intermediate body section 212' and the third intermediate body section 216 'are in close contact with the inner wall of the second cavity 62, and a fourth pouring space 622 is provided between the second intermediate body section 214' and the inner wall of the second cavity 62;
step S04: a second insulating material is poured into the fourth pouring space 622, the second insulating material fills the fourth pouring space 622, and a second insulating layer 25 is formed on the surfaces of the first insulating layer 23 and the core material 21 corresponding to the second intermediate body section 214' to obtain the insulating brake lining 20.
In fig. 5A, the core 21 has a first core segment 212, a second core segment 214 and a third core segment 216 sequentially from the free end 24 to the pivot end 22, and the combination of the first core segment 212 and the second core segment 214 has a groove 211, and the groove 211 has an inner surface.
In fig. 6A, a first casting space 522 is between the first core section 212 and the inner wall of the first region, a second casting space 524 is between the second core section 214 and the inner wall of the second region, and a third casting space 526 is between the third core section 216 and the inner wall of the third region, wherein the second casting space 524 is communicated with the first casting space 522 and the third casting space 526. In the embodiment of the present invention, the first mold 50 has the pouring hole 54 communicating with the third region (i.e., the third pouring space 526) of the first mold cavity 52. In the embodiment of the present invention, the first insulating material is injected into the third region of the first mold cavity 52 through the injection hole 54, and sequentially flows through and fills the third injection space 526, the second injection space 524 and the first injection space 522.
In fig. 5A, the first core section 212 has a first core outer surface, the second core section 214 has a second core outer surface, and the third core section 216 has a third core outer surface. The first insulating layer 23 covers the outer surface of the first core, the outer surface of the third core and a part of the outer surface of the second core, and the first insulating layer 23 forms an external thread section 26 on the outer surface of the third core section 216, as shown in fig. 5B.
In fig. 6B, the first mold 50 includes an upper mold 50a and a lower mold 50B that can be butted against each other, wherein the upper mold 50a is in contact with an inner surface and a part of an outer surface of the groove 211 of the core 21, and the lower mold 50B and the second core segment 214 have a second casting space 524 therebetween. When the first insulating material is poured into the first mold cavity 52 through the pouring hole 54, the first insulating material fills the second pouring space 524, forming the first insulating layer 23 on the surface of the second core material section 214.
Next, in fig. 7A, the intermediate body 21 'has a first intermediate body section 212', a second intermediate body section 214', and a third intermediate body section 216', when the intermediate body 21 'is disposed in the second cavity 62 of the second mold 60, the first intermediate body section 212' and the third intermediate body section 216 'are in close contact with the inner wall of the second cavity 62, and a fourth pouring space 622 is provided between the second intermediate body section 214' and the inner wall of the second cavity 62.
In fig. 7B, the second mold 60 comprises an upper mold 60a and a lower mold 60B which can be butted against each other, wherein the upper mold 60a is in contact with the inner surface of the groove 211 of the intermediate body 21' and has a fourth pouring space 622 with the outer surface of the second intermediate body section 214' of the intermediate body 21 '; a fourth casting space 622 is formed between the lower mold 60b and the first insulation layer 23 and the second intermediate body section 214'. When the second insulating material is poured into the second mold cavity 62 through the pouring hole 64, the second insulating material fills the fourth pouring space 622, forming the second insulating layer 25 on the outer surfaces of the first insulating layer 23 and the second core material section 214, so as to obtain the insulating brake bar 20. In the present embodiment, the second insulating layer 25 covers the first insulating layer 23 corresponding to the second core segment 214 and the entire outer surface of the second core.
In the embodiment of the present invention, at least a portion of the inner surface of the recess 211 is not covered by at least one of the first insulating layer 23 and the second insulating layer 25. In the embodiment of the present invention, the free end 24 has an outer surface, and the first insulating layer 23 covers the entire outer surface of the free end 24 corresponding to the first insulating segment 242 to form the first insulating segment 242; the first insulating layer 23 covers a portion of the outer surface of the free end 24 corresponding to the second insulating segment 244, and the second insulating layer 25 covers the entire outer surfaces of the first insulating layer 23 and the free end 24 corresponding to the second insulating segment 244 to form the second insulating segment 244. In brief, the second insulating section 244 includes a first insulating layer 23 and a second insulating layer 25, the first insulating layer 23 partially covers the brake rod core 21 corresponding to the second insulating section 244, and the second insulating layer 25 completely covers the brake rod core 21 and the first insulating layer 23. In the present embodiment, the second insulating section 244 has a color different from that of the externally threaded section 26. In the embodiment of the present invention, the first insulating section 242 has the same color as the external thread section 26 and the pivot section 22. In the embodiment of the present invention, the material and color of the first insulating layer 23 are the same as those of the first insulating section 242 and those of the external thread section 26.
In summary, the insulating brake bar 20 includes a brake bar core 21, a first insulating layer 23 and a second insulating layer 25. The brake lever core 21 includes a free end 24 and a pivot end 22, a first insulating layer 23 is disposed on the surface of the brake lever core 21, and the first insulating layer 23 forms an external thread section 26 between the free end 24 and the pivot end 22. The first insulating layer 23 includes a first insulating section 242 and a second insulating section 244 at the free end 24, and the second insulating section 244 is located between the first insulating section 242 and the external thread section 26. The first insulating layer 23 covers the brake rod core 21 corresponding to the first insulating section 242 and a portion of the brake rod core 21 corresponding to the second insulating section 244, and the second insulating layer 25 covers the first insulating layer 23 and the door rod core 21 corresponding to the second insulating section 244, and the color of the second insulating section 244 is different from the color of the first insulating section 242.
Referring to fig. 8A to 8C, the insulation limiting sleeve 30 includes a collar core 31, a first collar insulation layer 33 and a second collar insulation layer 35, and the first collar insulation layer 33 and the second collar insulation layer 35 cover the collar core 31. In fig. 3A, the collar core 31 has an outer surface 312 and an internal thread 32; next, in fig. 3B, the right half of the grommet core 31 is held in a mold (not shown), the left half of the grommet core 31 is suspended in the mold, and the first grommet insulating layer 33 is formed on the outer surface 312 of the left half of the grommet core 31; next, in fig. 3C, the collar core 31 coated with the first collar insulating layer 33 is clamped in another mold having a plurality of positioning ribs, the collar core 31 coated with the first collar insulating layer 33 is suspended in the other mold, and a second collar insulating layer 35 is formed on the outer surface 312 of the collar core 31 coated with the first collar insulating layer 33 and the first collar insulating layer 33. In the embodiment of the present invention, the second collar insulating layer 35 has a plurality of grooves 352 annularly recessed on the surface of the second collar insulating layer 35. In the embodiment of the present invention, a portion of the first collar insulating layer 33 is exposed to the opening of the groove 352 of the second collar insulating layer 35. In the embodiment of the present invention, the color of the first collar insulating layer 33 is different from the color of the second collar insulating layer 35, so that the color of the first collar insulating layer 33 can be exposed from the opening of the groove 352 of the second collar insulating layer 35.
Referring to fig. 2 and 9A, the pivot end 22 of the insulating brake rod 20 is pivotally connected to the pivot portion 12 of the insulating main body 10 by a pivot 40, and two insulating covers 42 respectively cover two ends of the pivot 40. In the embodiment of the present invention, the pivot 40 may be a rivet, but is not limited thereto. In fig. 9B, each insulating cover 42 includes a welding ring groove 422, and two opposite sides of the pivoting end 22 of the insulating gate rod 20 respectively include a welding protrusion ring 222, the welding ring grooves 422 of the insulating covers 42 respectively correspond to the welding protrusion rings 222, and the two insulating covers 42 are respectively and fixedly connected to the two welding ends of the pivoting end 22 by an ultrasonic welding method. In addition, the whole outer surface of the insulating hook provided by the invention is coated by an insulating material so as to avoid the inductive or conductive condition of the hook and further provide further safety protection for electric power maintenance personnel.
The above description is only a preferred embodiment of the invention, and all equivalent variations to those described and claimed in the present application are intended to be included within the scope of the present invention.
Description of the reference numerals
[ invention ]
1 insulating hook
10 insulating body
11 core 12 of the body pin 13 insulating layer
14 abutting portion 142 outer surface
20 insulating brake bar
21 core 211 groove 212 first core section
214 second core segment 216 third core segment 21' intermediate
212 'first intermediate segment 214' second intermediate segment
216' third intermediate section 22 pivot end 222 welding collar
23 first insulation layer 24 free end 242 first insulation segment
244 second insulating section 25 second insulating layer 26 external thread section
30 insulating spacing sleeve
31 collar core 312 outer surface 32 internal threads
33 first collar insulating layer 35 second collar insulating layer 352 recess
40 pivot 42 insulating cover 422 welding ring groove
50 first mould
50a upper die 50b lower die 52 first die cavity
522 first casting space 524 second casting space 526 third casting space
54. 64 pouring hole
60 second mould
60a upper die 60b lower die 62 second cavity
622 fourth pouring space
AX axial direction S01, S02, S03, S04 step

Claims (21)

1. An insulating grab, comprising:
an insulating main body, having a pivot part and a butt part respectively located at two different ends of the insulating main body;
the insulating brake bar is provided with a brake bar core material, a first insulating layer and a second insulating layer, wherein the brake bar core material comprises a pivot joint end and a free end, the first insulating layer is arranged on the surface of the brake bar core material, and the first insulating layer forms an external thread section, wherein the external thread section is positioned between the pivot joint end and the free end; the insulated brake rod is pivoted to the pivoting part of the insulated main body through the pivoting end, so that the insulated brake rod can pivot and swing relative to the insulated main body; said free end being operatively abutted against or remote from said abutment of said insulating body; the free end comprises a first insulating section and a second insulating section, the second insulating section is positioned between the first insulating section and the external thread section, the first insulating section covers the brake bar core material corresponding to the first insulating section and a part of the brake bar core material corresponding to the second insulating section, the second insulating layer covers the first insulating layer and the brake bar core material corresponding to the second insulating section, and the color of the second insulating section is different from that of the first insulating section; and
the insulating limit sleeve is provided with an internal thread section, the insulating limit sleeve is sleeved on the insulating brake rod, the internal thread section and the external thread section of the insulating brake rod are screwed with each other, and the insulating limit sleeve can be operated to rotate so as to enable the insulating limit sleeve to move along the axial direction of the insulating brake rod;
when the free end is abutted against the abutting part of the insulating main body, and the insulating limiting sleeve completely covers the second insulating section of the insulating brake rod and covers at least one part of the abutting part of the insulating main body, the insulating limiting sleeve is defined to be located at a safe position, and the insulating brake rod cannot freely pivot; when the free end is abutted against the abutting part of the insulating main body and the insulating limiting sleeve exposes at least one part of the second insulating section of the insulating brake rod, the insulating limiting sleeve is defined to be located at a warning position.
2. The insulating hook according to claim 1, wherein when the free end abuts against the abutting portion of the insulating main body and the insulating position-limiting sleeve is located at the warning position, the insulating position-limiting sleeve exposes at least a portion of the second insulating section of the insulating brake rod, and the free end cannot firmly abut against the abutting portion.
3. The insulating hook according to claim 1, wherein when the free end abuts against the abutting portion of the insulating main body and the insulating position-limiting sleeve is located at the warning position, the insulating position-limiting sleeve exposes at least a portion of the second insulating section of the insulating brake rod, and the insulating brake rod can freely pivot with respect to the insulating main body.
4. The insulating hook of claim 1, wherein the insulating body comprises a body core and a body insulating layer covering the body core; the main body insulating layer does not completely cover the main body core material of the insulating main body at the abutting part, so that a part of the main body core material at the abutting part is exposed outwards.
5. The insulating grab of claim 1 in which the insulating stop sleeve includes a collar core material and a collar insulating layer that encases the collar core material; the lantern ring insulating layer is provided with a plurality of grooves which are annularly and concavely arranged on the surface of the lantern ring insulating layer.
6. The insulating hook of claim 1, wherein the insulating brake lever includes a brake lever insulating layer that covers the brake lever core; the brake lever insulating layer comprises the first insulating section, the second insulating section, the external thread section and a pivoting section from the free end to the pivoting end in sequence, wherein the pivoting section of the brake lever insulating layer covers the brake lever core material corresponding to the pivoting end of the insulating main body, and the color of the second insulating section is different from the colors of the external thread section and the pivoting section.
7. The insulating hook of claim 6, wherein the first insulating section has the same color as the external thread section and the pivot section.
8. The insulating grab of claim 6, in which the first insulating layer comprises the first insulating segment and the second insulating segment.
9. The insulating hook of claim 7, wherein the material and color of the first insulating layer are the same as those of the first insulating section and the outer threaded section.
10. The insulating hook of claim 1, wherein the pivoting end of the insulating brake lever is pivoted to the pivoting portion of the insulating main body by a pivot, and two insulating covers respectively cover two ends of the pivot.
11. The insulating hook according to claim 10, wherein each of the insulating covers includes a welding ring groove, and opposite sides of the pivotal end of the insulating lever respectively include a welding protrusion ring, the welding ring groove of each of the insulating covers respectively corresponds to the welding protrusion ring, and the two insulating covers are respectively fixed to the two welding protrusion rings of the pivotal end by ultrasonic welding.
12. An insulating brake bar for a hook comprises a brake bar core material, a first insulating layer and a second insulating layer, wherein the brake bar core material comprises a free end and a pivot end, the first insulating layer is arranged on the surface of the brake bar core material, and an external thread section is formed between the free end and the pivot end by the first insulating layer; the first insulating layer comprises a first insulating section and a second insulating section at the free end, the second insulating section is positioned between the first insulating section and the external thread section, the first insulating layer covers the brake bar core material corresponding to the first insulating section and a part of the brake bar core material corresponding to the second insulating section, the second insulating layer covers the first insulating layer and the brake bar core material corresponding to the second insulating section, and the color of the second insulating section is different from that of the first insulating section.
13. The insulating brake lever for a hook according to claim 12, wherein the free end has an outer surface, the first insulating layer covers all of the outer surface corresponding to the free end of the first insulating section and a portion of the outer surface corresponding to the free end of the second insulating section, and the second insulating layer covers all of the outer surfaces corresponding to the first insulating layer and the free end of the second insulating section.
14. An insulating brake lever for a hook as claimed in claim 12, wherein the second insulating section is of a different colour to the external threaded section.
15. The insulating brake lever for a hook of claim 12, wherein the color of the first insulating section is the same as the color of the external thread section.
16. The insulating brake lever for a hook according to claim 12, wherein the free end has a groove, and the groove has an inner surface, at least a portion of the inner surface being uncovered by at least one of the first insulating layer and the second insulating layer.
17. A method of manufacturing an insulating brake lever for hooks according to claim 12, comprising:
providing a brake bar core material and a first mold, wherein the brake bar core material is arranged in a first mold cavity of the first mold, the brake bar core material is provided with a first core material section, a second core material section and a third core material section, and the first mold cavity is provided with a first area, a second area and a third area; wherein the first core section is disposed within the first region, the second core section is disposed within the second region, and the third core section is disposed within the third region, the third core section having a third core outer surface; a first pouring space is arranged between the first core material section and the inner wall of the first area, a second pouring space is arranged between the second core material section and the inner wall of the second area, and a third pouring space is arranged between the third core material section and the inner wall of the third area, wherein the second pouring space is communicated with the first pouring space and the third pouring space;
pouring a first insulating material into the first mold cavity, wherein the first insulating material fills the first pouring space, the second pouring space and the third pouring space to form a first insulating layer on the surface of the brake bar core material so as to obtain an intermediate body, and the first insulating layer forms an external thread section on the outer surface of the third core material section;
the intermediate body is provided with a first intermediate body section, a second intermediate body section and a third intermediate body section, a second mold is provided, when the intermediate body is arranged in a second mold cavity of the second mold, the first intermediate body section and the third intermediate body section are in close contact with the inner wall of the second mold cavity, and a fourth pouring space is arranged between the second intermediate body section and the inner wall of the second mold cavity; and
pouring a second insulating material into the fourth pouring space, wherein the second insulating material fills the fourth pouring space, and a second insulating layer is formed on the surfaces of the first insulating layer and the brake bar core material corresponding to the second intermediate body section, so as to obtain the insulating brake bar.
18. The method for manufacturing an insulating brake lever for a hook according to claim 17, wherein the first mold has a pouring hole communicating with the third region of the first mold cavity.
19. The method of manufacturing an insulating brake lever for a hook according to claim 18, wherein the first insulating material is injected into the third region of the first mold cavity through the pouring hole and sequentially fills the third pouring space, the second pouring space, and the first pouring space.
20. The method of claim 17, wherein the first core section has a first core outer surface, the second core section has a second core outer surface, the first insulation layer covers the first core outer surface, the third core outer surface and a portion of the second core outer surface, and the second insulation layer covers the first insulation layer corresponding to the second core section and the entire second core outer surface.
21. The method according to claim 20, wherein the combination of the first core section and the second core section has a groove, and the groove has an inner surface, at least a portion of the inner surface being uncovered by at least one of the first insulating layer and the second insulating layer.
CN201910825659.3A 2019-09-03 2019-09-03 Insulating hook, insulating brake rod for hook and manufacturing method of insulating hook Active CN112439138B (en)

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CN101392787A (en) * 2007-08-31 2009-03-25 齐德公司 Snap hook with pivotal gate fitted with a locking ring
CN103003042A (en) * 2010-08-25 2013-03-27 高田股份公司 Method and a device for thinly coating a component on all sides, in particular a decorative element, and component having a thin coating
US9199105B1 (en) * 2014-06-30 2015-12-01 Yoke Industrial Corp. Safety hook
CN211513190U (en) * 2019-09-03 2020-09-18 振锋企业股份有限公司 Insulating clamping hook and insulating brake rod for clamping hook

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10514057B2 (en) * 2017-05-05 2019-12-24 Tammie Cardella Cushioned carabiner clip

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101392787A (en) * 2007-08-31 2009-03-25 齐德公司 Snap hook with pivotal gate fitted with a locking ring
CN103003042A (en) * 2010-08-25 2013-03-27 高田股份公司 Method and a device for thinly coating a component on all sides, in particular a decorative element, and component having a thin coating
US9199105B1 (en) * 2014-06-30 2015-12-01 Yoke Industrial Corp. Safety hook
CN211513190U (en) * 2019-09-03 2020-09-18 振锋企业股份有限公司 Insulating clamping hook and insulating brake rod for clamping hook

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