CN105257658A - Demounting-preventing screw for electric power measurement maintenance - Google Patents
Demounting-preventing screw for electric power measurement maintenance Download PDFInfo
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- CN105257658A CN105257658A CN201510695484.0A CN201510695484A CN105257658A CN 105257658 A CN105257658 A CN 105257658A CN 201510695484 A CN201510695484 A CN 201510695484A CN 105257658 A CN105257658 A CN 105257658A
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- screw
- screw rod
- contiguous block
- spiral shell
- shell head
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- 238000012423 maintenance Methods 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 title abstract 2
- 239000003351 stiffener Substances 0.000 claims description 11
- 230000008602 contraction Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001125671 Eretmochelys imbricata Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention relates to a demounting-preventing screw for electric power measurement maintenance. The demounting-preventing screw comprises a screw rod, a connecting block and a screw head. A thread is arranged on the outer edge of the screw rod. The lower end of the screw rod is provided with a gradually-narrowed shrinking part. An inner polygonal groove is formed in the lower bottom face of the screw rod. The connecting block is in the shape of a pillar with two narrow ends and a wide middle. The connecting block is arranged at the tail portion of the screw rod. Annular reinforcing ribs are distributed on the outer wall of the connecting block in the length direction of the connecting block at equal intervals and are distributed on the outer edge of the connecting block in the circumferential direction. The screw head is arranged at the upper end of the connecting block and is in the shape of a regular polygon. A cross-shaped groove is formed in the upper end face of the screw head, and a through hole penetrating the screw head is formed in the side face of the screw head. The demounting-preventing screw can have the demounting-preventing function and can also be operated conveniently from the same side to be screwed tightly.
Description
Technical field
The present invention relates to a kind of electric-power metering maintenance instrument, be specifically related to a kind of electric-power metering maintenance Anti-dismantle screw.
Background technique
Screw, also someone is its " screw " (screw), " screw rod " (lead screw).Screw is common name in fact, and screw, lead screw are all distinguishing mutually.Screw is generally WOOD SCREWS; Be that front end is acuminous that, pitch is comparatively large, is generally used for fastening wooden part, working of plastics.Lead screw is machine screw (MACHINE SCREWS), and be that of front end tack, pitch is less, evenly, is generally used for fastening metal, machine part.
Screw utilizes the inclined-plane circular rotating of object and the physics of frictional force and mathematical principle, the by easy stages instrument of fastening implements parts.Screw is the general saying of fastening piece, daily pet phrase.Screw is industrial necessity indispensable in daily life: the minimum screw used as photographic camera, glasses, clock and watch, electronics etc.; The general screw of TV, electric product, musical instrument, furniture etc.; Large-scale screw, nut is then used as engineering, building, bridge; Traffic tool, aircraft, electric car, automobile etc. then sized by screw using.Screw industrially bears vital task, as long as the earth also exists industry, then the function of screw is forever important.Screw is the joint invention over the past thousands of years in people's productive life, and according to application, it is the first invention of the mankind.
The kind of screw is roughly divided into following several:
1) fluting normal screws
Be used for the connection of smaller parts.It has pan head screw, fillister head screw, oval-head screw and sunk screw.The ailhead intensity of pan head screw and fillister head screw is higher, and hawksbill turtle is on common parts connect; The head of oval-head screw is curved, and after installing, its top is slightly exposed, and attractive in appearance smooth, is generally used on instrument or precision optical machinery; The place of sunk screw then for not allowing ailhead to expose.
2) interior hexagonal and interior hexagonal flower shape screw
The head of this kind of screw can be imbedded in component, and can apply larger moment of torsion, join strength is higher, can replace hex head bolt.Be usually used in structural requirement compact, the connection place that outward appearance is level and smooth.
3) cross recess normal screws
It is similar to the using function of fluting plain screw, can replace mutually, but the flute profile intensity of cross recess plain screw is higher, and not easily twist bald, profile is comparatively attractive in appearance.Must load and unload by cross driver supporting with it during use.
4) hanging ring screw
Lifting bolt is a kind of hardware fitting for load-bearing when installing and transport.During use screw must precession to the position making supporting surface fit tightly, inaccurate use instrument is wrenched, and does not also allow load action perpendicular to suspension ring plane above.
5) screw
Cock screw is used for the relative position of fixed member.Cock screw is screwed in and treats, in the screw of the part of tightening, to be pressed on the surface of another part with its end, after namely last part being fixed on a part.
Cock screw is manufactured by steel or stainless steel material usually, and its tip shapes has taper, spill, flat-headed, cylindrical and stepped shaft etc.Cone end or the termination of recessed end Cock screw directly hold out against part, are generally used for seldom dismounting place after installation; The termination of flush end Cock screw is level and smooth, and after holding out against, injuring part is not surperficial, for needing the connection place of frequent adjusted position, can only transmit less load; Cylindrical end clamp screw portion is used in and often need regulates fixed position, and it can bear larger load action, but anti-loosening property is poor, need take locking measure time fixing; The part that ladder Rong Cock screw is applicable to wall thickness larger is fixed.
6) self tapping screw
When tapping screw is used on connected compcnent, coupled place can not make screw thread in advance.The direct tap out of screw is utilized when connecting.It is usually used in the sheet metal connecting thinner thickness.Its kind has cone end tapping screw and flush end tapping screw two kinds.
7) self tapping locking nut
Self-tapping lock screw not only has self tapping effect, but also has the low performance being screwed into moment and high locking.Its screw thread is triangular-section, and, through hardening process, there is higher hardness on the surface of screw.Its screw thread specification has M2 ~ M12.
At present as the screw of fastening connection piece, there is no the design of Anti-dismantling, all can arbitrarily dismantle with general dismounting screwdriver or substitute instrument.In the environment requiring safety rate higher, as in the higher field of the security requirements such as computer, server, monitor unit, cabinet, rack, mobile phone, automobile, aircraft, be easy to be disassembled, cause the loss of component, bring more serious harm to the Security of working environment.
Applying date 2011.05.12, the screw that patent discloses a kind of Anti-dismantling of application number 201120149783.1, it comprises screw cap and lead screw, and screw cap comprises cap and lower cap, upper cap upper-end surface has cross groove or in-line groove, lower cap upper-end surface is level and smooth spherical, and upper cap and lower cap are fixed together or are structure as a whole, and this invention is not easily disassembled after installing, antitheft, tamper-proof, safe to use, make the service behaviour of product more stable.The present invention is particularly suitable in the environment requiring safety rate higher, as in the higher field of the security requirements such as computer, server, monitor unit, cabinet, rack, mobile phone, automobile, aircraft.
Applying date 2015.03.07; application number 201520135237.0 patent discloses a kind of novel anti-theft screw; comprise body; body is split-type structural; comprise Anti-dismantling flat head screw, anti-theft nut and anti-theft screw; Anti-dismantling flat head screw is connected with the nut tool specially for attaching and detaching of tool specially for attaching and detaching one end by anti-theft nut; the screw rod tool specially for attaching and detaching of the tool specially for attaching and detaching the other end mates with anti-theft screw and is connected, and the outer installment of anti-theft nut has the anti-theft nut privacy protection cover coordinating anti-theft nut.Beneficial effect of the present invention: good anti-theft effect, saving resource.
Applying date 2012.01.05, application number 201220002857.3 patent discloses a kind of anti-demounting bolt.This anti-demounting bolt comprises: tamper head and screw rod, and tamper head comprises: oval head and hexagon head and connection flat round end and hexagon head twist into two parts portion.Due to the hexagon head of the tamper head of this anti-demounting bolt tighten after can twist into two parts, and the oval head inconvenience stayed is dismantled by screwing tool, reach the effect that this anti-demounting bolt cannot be dismantled, and then avoid user and privately adjust this bolt and cause potential safety hazard, affect the judgement of accident responsibility.
Aforementioned patents disclose the screw with anti-theft feature, but it is all only adopt a kind of single method, especially its complex structure of patent of application number 201520135237.0, cost is higher, and impracticable.And in the actual using process of screw, also there is another problem, for time screw is arranged on large-area planar, screw is passed dull and stereotyped then when screw head mounting nuts, because the arm length of people is limited, same operator cannot operate screw and nut simultaneously, therefore needs to design a kind ofly also can to carry out at screw head the screw that operates.
Applying date 2015.05.11, application number 201520296841.1 patent discloses a kind of two bolt head bolt, comprise screw rod, be located at first bolt head of described screw rod one end, be located at the second bolt head of the described screw rod the other end, described screw rod is cylindric, and described screw rod circumferential surface forms screw thread, described first bolt head cross section is regular hexagon, and the inscribed circle diameter of its cross section is greater than the external diameter of described screw rod, described second bolt head cross section is regular hexagon, and the circumscribed circle diameter of its cross section is less than the internal diameter of described screw rod, and the end face of described second bolt head away from described screw rod forms the 3rd groove, and described 3rd groove cross section is regular hexagon, the present invention is particularly useful for user cannot touch the bolt head of fastener both sides and the situation of nut simultaneously, if fastener is large-area wallboard or panel, can at fastener homonymy by the second bolt head screwing bolts, this patent is particularly useful for user's both hands cannot touch the bolt head of fastener both sides and the situation of nut simultaneously, such as, when needing to apply screw bolt and nut in the middle part of the larger panel of area or wallboard, operating personnel's both arms are obviously not enough to cross described panel or wallboard and touch described bolt head and nut simultaneously, now use plain bolt obviously very inconvenient.When using bolt attaching nut of the present invention, operating personnel only needs to stand in fastener side just can by nut on screw rod, easily laborsaving.
Above-mentioned patent solves homonymy cannot the problem of operating screw, but cannot solve the Anti-dismantling problem of bolt.
Generally speaking, prior art does not also exist one both can have anti-disassembling function, had and can conveniently carry out operating thus the screw tightened from homonymy.
Summary of the invention
In order to solve the prior art Problems existing in above-mentioned background technology, provide a kind of electric-power metering maintenance Anti-dismantle screw.
The technical solution adopted for the present invention to solve the technical problems:
A kind of electric-power metering maintenance Anti-dismantle screw, comprises screw rod, contiguous block, spiral shell head;
Described screw rod outer is provided with screw thread, and described screw rod lower end is provided with the contraction flow region narrowed gradually, and described screw rod bottom surface is also provided with interior polygonal groove;
Described contiguous block is the wide column in narrow centre, two ends, and described contiguous block is located at described screw rod tail, and described contiguous block outer wall is equidistantly distributed with ring stiffener along its length, and described ring stiffener circumferentially distributes outward at described contiguous block;
Described spiral shell head is located at described contiguous block upper end, and described spiral shell head outer is regular polygon, and described spiral shell head upper-end surface is provided with cross groove, and described spiral shell head side is also provided with the through hole that runs through described spiral shell head.
Further, described interior polygonal groove is interior hexagonal groove.
Further, described interior polygonal groove is interior anistree groove.
Further, the cross section of the arbitrary height of described contiguous block is circular.
Further, described spiral shell head outer is regular hexagon.
Further, described spiral shell head outer is octagon.
Further, the diameter of described contiguous block the widest position is less than the half of described screw diameter.
Beneficial effect of the present invention:
When the present invention uses, can screw in nut by screw rod, and because described screw rod lower end is provided with the contraction flow region narrowed gradually, the present invention can also insert in pore, play the effect of tapping screw, described interior polygonal groove can allow operator to operate screw rod and nut in the lower end of described screw rod simultaneously, and the screw solving prior art can not carry out the problem of tightening by homonymy.
Contiguous block of the present invention is the wide column in narrow centre, two ends, described contiguous block is located at described screw rod tail, described contiguous block outer wall is equidistantly distributed with ring stiffener along its length, described ring stiffener circumferentially distributes outward at described contiguous block, after screw rod of the present invention screws in screw or other positions, described contiguous block can be knocked off thus described spiral shell head is taken, described stiffening rib can increase described contiguous block with it axially for twisting strength when axle center rotates, make contiguous block easily by under the prerequisite that knocks off, stronger twisting strength can be had, one side twists off when tightening.
Described spiral shell head of the present invention is located at described contiguous block upper end, described spiral shell head outer is regular polygon, described spiral shell head upper-end surface is provided with cross groove, described spiral shell head side is also provided with the through hole that runs through described spiral shell head, described cross groove can make operator be twisted by the screw-driver of a word and cross, described through hole is convenient to interspersed elongate rod or steel wire etc., then twists described spiral shell head.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described;
Fig. 1 is structural scheme of mechanism of the present invention.
Fig. 2 is sectional view of the present invention.
In figure: 1. screw rod, 11. contraction flow regions, polygonal groove, 2. contiguous block in 12., 21. ring stiffeners, 3. spiral shell head, 31. cross grooves, 32. through holes.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of electric-power metering maintenance Anti-dismantle screw, comprises screw rod 1, contiguous block 2, spiral shell head 3;
Described screw rod 1 outer is provided with screw thread, described screw rod 1 lower end is provided with the contraction flow region 11 narrowed gradually, described screw rod 1 bottom surface is also provided with interior polygonal groove 12, can screw in nut by screw rod 1, and because described screw rod 1 lower end is provided with the contraction flow region 11 narrowed gradually, the present invention can also insert in pore, play the effect of tapping screw, described interior polygonal groove 12 can allow operator to operate screw rod 1 and nut in the lower end of described screw rod 1 simultaneously, and the screw solving prior art can not carry out the problem of tightening by homonymy.
The column that described contiguous block 2 is wide in narrow centre, two ends, described contiguous block 2 is located at described screw rod 1 afterbody, described contiguous block 2 outer wall is equidistantly distributed with ring stiffener 21 along its length, described ring stiffener 21 circumferentially distributes outside described contiguous block 2, after screw rod 1 of the present invention screws in screw or other positions, described contiguous block 2 can be knocked off thus described spiral shell head 3 is taken, described stiffening rib 21 can increase described contiguous block with it axially for twisting strength when axle center rotates, make contiguous block 2 easily by under the prerequisite that knocks off, stronger twisting strength can be had, one side twists off when tightening.
Described spiral shell head 3 is located at described contiguous block 2 upper end, described spiral shell head 3 outer is regular polygon, described spiral shell head 3 upper-end surface is provided with cross groove 31, described spiral shell head 3 side is also provided with the through hole 32 that runs through described spiral shell head 3, described cross groove 31 can make operator be twisted by the screw-driver of a word and cross, described through hole 32 is convenient to interspersed elongate rod or steel wire etc., then twists described spiral shell head 3.
Further, described interior polygonal groove 12 is interior hexagonal groove.
Further, described interior polygonal groove 12 is interior anistree groove.
Further, the cross section of the arbitrary height of described contiguous block 2 is circular.
Further, described spiral shell head 3 outer is regular hexagon.
Further, described spiral shell head 3 outer is octagon.
Further, the diameter of described contiguous block 2 the widest position is less than the half of described screw rod 1 diameter.
Concrete using method:
When the present invention uses, can screw in nut by screw rod 1, and because described screw rod 1 lower end is provided with the contraction flow region 11 narrowed gradually, the present invention can also insert in pore, play the effect of tapping screw, described interior polygonal groove 12 can allow operator to operate screw rod 1 and nut in the lower end of described screw rod 1 simultaneously, and the screw solving prior art can not carry out the problem of tightening by homonymy.
The column that contiguous block 2 of the present invention is wide in narrow centre, two ends, described contiguous block 2 is located at described screw rod 1 afterbody, described contiguous block 2 outer wall is equidistantly distributed with ring stiffener 21 along its length, described ring stiffener 21 circumferentially distributes outside described contiguous block 2, after screw rod 1 of the present invention screws in screw or other positions, described contiguous block 2 can be knocked off thus described spiral shell head 3 is taken, described stiffening rib 21 can increase described contiguous block with it axially for twisting strength when axle center rotates, make contiguous block 2 easily by under the prerequisite that knocks off, stronger twisting strength can be had, one side twists off when tightening.
Described spiral shell head 3 of the present invention is located at described contiguous block 2 upper end, described spiral shell head 3 outer is regular polygon, described spiral shell head 3 upper-end surface is provided with cross groove 31, described spiral shell head 3 side is also provided with the through hole 32 that runs through described spiral shell head 3, described cross groove 31 can make operator be twisted by the screw-driver of a word and cross, described through hole 32 is convenient to interspersed elongate rod or steel wire etc., then twists described spiral shell head 3.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. an electric-power metering maintenance Anti-dismantle screw, is characterized in that: comprise screw rod (1), contiguous block (2), spiral shell head (3);
Described screw rod (1) outer is provided with screw thread, and described screw rod (1) lower end is provided with the contraction flow region (11) narrowed gradually, described screw rod (1) bottom surface is also provided with interior polygonal groove (12);
Described contiguous block (2) column that narrow centre is wide in two ends, described contiguous block (2) is located at described screw rod (1) afterbody, described contiguous block (2) outer wall is equidistantly distributed with ring stiffener (21) along its length, and described ring stiffener (21) circumferentially distributes outward at described contiguous block (2);
Described spiral shell head (3) is located at described contiguous block (2) upper end, described spiral shell head (3) outer is regular polygon, described spiral shell head (3) upper-end surface is provided with cross groove (31), and described spiral shell head (3) side is also provided with the through hole (32) that runs through described spiral shell head (3).
2. a kind of electric-power metering maintenance Anti-dismantle screw according to claim 1, is characterized in that: described interior polygonal groove (12) is interior hexagonal groove.
3. a kind of electric-power metering maintenance Anti-dismantle screw according to claim 1, is characterized in that: described interior polygonal groove (12) is interior anistree groove.
4. a kind of electric-power metering maintenance Anti-dismantle screw according to claim 1, is characterized in that: the cross section of described contiguous block (2) arbitrary height is for circular.
5. a kind of electric-power metering maintenance Anti-dismantle screw according to claim 1, is characterized in that: described spiral shell head (3) outer is regular hexagon.
6. a kind of electric-power metering maintenance Anti-dismantle screw according to claim 1, is characterized in that: described spiral shell head (3) outer is octagon.
7. a kind of electric-power metering maintenance Anti-dismantle screw according to claim 1, is characterized in that: the diameter of described contiguous block (2) the widest position is less than the half of described screw rod (1) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695484.0A CN105257658A (en) | 2015-10-23 | 2015-10-23 | Demounting-preventing screw for electric power measurement maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695484.0A CN105257658A (en) | 2015-10-23 | 2015-10-23 | Demounting-preventing screw for electric power measurement maintenance |
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| Publication Number | Publication Date |
|---|---|
| CN105257658A true CN105257658A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695484.0A Pending CN105257658A (en) | 2015-10-23 | 2015-10-23 | Demounting-preventing screw for electric power measurement maintenance |
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| CN (1) | CN105257658A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909647A (en) * | 2016-03-10 | 2016-08-31 | 天津市福厚盈科技有限公司 | Preparation method of beautiful screw |
| CN107642539A (en) * | 2017-10-28 | 2018-01-30 | 东台市凯润精密机械股份有限公司 | A kind of stainless steel safe antitheft screw |
| CN108506309A (en) * | 2018-06-04 | 2018-09-07 | 海盐兴隆紧固件有限公司 | A kind of machine screw for twisting into two parts convenient post-treatment |
| CN109404398A (en) * | 2018-10-23 | 2019-03-01 | 浙江荣亿精密机械股份有限公司 | A kind of automobile connection fixture and its processing method |
-
2015
- 2015-10-23 CN CN201510695484.0A patent/CN105257658A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909647A (en) * | 2016-03-10 | 2016-08-31 | 天津市福厚盈科技有限公司 | Preparation method of beautiful screw |
| CN107642539A (en) * | 2017-10-28 | 2018-01-30 | 东台市凯润精密机械股份有限公司 | A kind of stainless steel safe antitheft screw |
| CN108506309A (en) * | 2018-06-04 | 2018-09-07 | 海盐兴隆紧固件有限公司 | A kind of machine screw for twisting into two parts convenient post-treatment |
| CN108506309B (en) * | 2018-06-04 | 2023-10-03 | 海盐兴隆紧固件股份有限公司 | Machine screw with convenient screw-off post-treatment |
| CN109404398A (en) * | 2018-10-23 | 2019-03-01 | 浙江荣亿精密机械股份有限公司 | A kind of automobile connection fixture and its processing method |
| CN109404398B (en) * | 2018-10-23 | 2023-09-19 | 浙江荣亿精密机械股份有限公司 | Automobile connecting and fixing piece and processing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160120 |