CN205509428U - Locking strain clamp - Google Patents

Locking strain clamp Download PDF

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Publication number
CN205509428U
CN205509428U CN201521083833.5U CN201521083833U CN205509428U CN 205509428 U CN205509428 U CN 205509428U CN 201521083833 U CN201521083833 U CN 201521083833U CN 205509428 U CN205509428 U CN 205509428U
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CN
China
Prior art keywords
core
hyposphene
wedge
groove
locking
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Active
Application number
CN201521083833.5U
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Chinese (zh)
Inventor
唐静
黄亦兵
曹少华
胡志坤
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YONGGU GROUP CO Ltd
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YONGGU GROUP CO Ltd
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Priority to CN201521083833.5U priority Critical patent/CN205509428U/en
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Abstract

The utility model provides a locking strain clamp, include: go up the wedge core, the shaping has a first core groove on it, first core inslot is provided with the dogtooth, the hyposphene core, on it the shaping have with the corresponding second core groove in first core groove, first core groove with constitute the metallic channel that can hold the wire behind the lock of second core groove, second core inslot is provided with the dogtooth, go up the wedge core and/or the hyposphene core is the wedge, still including the locking subassembly of locking, it includes to lock locking subassembly: the lock sleeve, the shaping has to be suitable for and holds on it go up the wedge core with the wedge guide slot of the wedge profile of hyposphene core, the bias voltage subassembly, the bias voltage subassembly is right go up the wedge core with the orientation is applyed to the hyposphene core the bias voltage power of wedge guide slot internal motion, so that the cell wall of wedge guide slot is right go up the wedge core with the hyposphene core forms and to press from both sides tight effort each other, can keep away locking strain clamp in long -term use, or the in -process of cold and hot transition takes place not hard up phenomenon for the circuit does not need frequently to stop transport to maintain.

Description

A kind of locking strain clamp
Technical field
This utility model relates to electric armour clamp technical field, is specifically related to a kind of locking strain clamp.
Background technology
Strain clamp, it is primarily adapted for use in the gold utensil fixing cable on overhead power line and transformer station's strain rod tower, in use, cable is connected by it with insulator chain, insulator chain is connected with steel tower again, to carry the pulling force of cable, reducing the slackness of aerial cable, the safe operation to power system plays a very important role.Along with power consumer is more and more higher to the requirement of power supply reliability, power system upgrading progress is constantly accelerated in recent years, and the requirement for strain clamp is more and more higher.
The existing strain clamp for insulated cable, in using running, due to the impact of climate, and wire self-heating, causing wire clamp wedge core to loosen and hold not tight wire, wire sliding easily occurs, the phenomenon that aerial cable is lax occurs.In order to not affect the safe operation of circuit, it is necessary to have a power failure and carry out stringing process, this has resulted in line outage time length, has had a power failure frequently, is susceptible to personal injury when safeguarding, causes equipment breakdown, there is security risk.
Utility model content
Therefore, the technical problems to be solved in the utility model is when overcoming strain clamp of the prior art at life-time service and cold and heat succeed each other wire of can not holding with a firm grip easily occur so that circuit loosens, and need frequently to stop transport the technological deficiency safeguarded.
For solving above-mentioned technical problem, this utility model provides a kind of locking strain clamp, including:
Upper wedge core, it forms the first core groove, is provided with double wedge in described first core groove;
Hyposphene core, it forms the second core groove corresponding with described first core groove, and described first core groove is configured to accommodate the metallic channel of wire with described second core groove after fastening, be provided with double wedge in described second core groove;
Described upper wedge core and/or described hyposphene core are wedge shape;
Also including locking retention device, described locking retention device includes:
Lock sleeve, it forms the wedge shape guide groove being suitable to accommodate the wedge profile of described upper wedge core and described hyposphene core;
Bias assembly, described bias assembly applies the biasing force of motion in described wedge shape guide groove to described upper wedge core and described hyposphene core, so that the cell wall of described wedge shape guide groove forms the active force of mutually clamping to described upper wedge core and described hyposphene core.
In above-mentioned locking strain clamp, described upper wedge core and described hyposphene core form inclined plane the most along its length;
The corresponding described inclined plane of described wedge shape guide groove is provided with cooperation face.
In above-mentioned locking strain clamp, described bias assembly includes:
U-shaped screw rod, the two ends of its opening connect the both sides of described lock sleeve respectively, and its closed end be positioned at described upper wedge core and hyposphene core hold greatly side;
Limit assembly, movable or be fixedly provided between the big end of described U-shaped screw rod closed end and described upper wedge core, hyposphene core;
At least one stage clip, its one end is against described upper wedge core and/or the big end of hyposphene core, the other end is resisted against on described limit assembly, so that described limit assembly is in the stationary state, the biasing force of described stage clip can order about described upper wedge core and/or hyposphene core and move in described wedge shape guide groove.
In above-mentioned locking strain clamp, described stage clip is two, and the most corresponding described upper wedge core and described hyposphene core are arranged.
In above-mentioned locking strain clamp, described bias assembly also includes:
Briquetting, described briquetting is two, and is separately positioned between two described stage clips and described upper wedge core and described hyposphene core;
Bar fixed by stage clip, and bar fixed by described stage clip is two screw rods, is separately positioned on described briquetting, and is connected by bolt with described limit assembly.
In above-mentioned locking strain clamp, the opening two ends of described U-shaped screw rod form screw thread respectively, and the both sides of described lock sleeve form respectively and are suitable to the connecting hole that described U-shaped screw rod opening two ends are stretched into;
Described U-shaped screw rod is connected by adjusting nut and described lock sleeve are fixing.
In above-mentioned locking strain clamp, described limit assembly includes:
Two adjusting nuts, are arranged on the both sides of described U-shaped screw rod;
Baffle plate, is provided with two connecting holes, and described baffle plate is set on described U-shaped screw rod by two described connecting holes;Described stage clip is resisted against on described baffle plate.
In above-mentioned locking strain clamp, described stage clip is fixed and is formed screw thread on bar;
The corresponding described stage clip of described baffle plate is fixed bar and is provided with connecting hole, and is fixed the position of the adjusting nut described baffle plate of regulation on bar by described stage clip.
In above-mentioned locking strain clamp, described limit assembly also includes:
Aluminum body, is provided with two connecting holes, and is set on described U-shaped screw rod by connecting hole, and described baffle plate and described between wedge core, hyposphene core, corresponding two the described briquettings of described aluminum body are respectively arranged with guide-track groove;
Described briquetting can slide along described guide-track groove the most described aluminum body.
In above-mentioned locking strain clamp, described aluminum body and described baffle plate connect by some screws are fixing.
In above-mentioned locking strain clamp, described upper wedge core and described hyposphene core form province's hopper respectively.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the cross-sectional schematic of locking strain clamp of the present utility model;
Fig. 2 is the exploded perspective view of locking strain clamp of the present utility model;
Fig. 3 is the structural representation of lock sleeve in locking strain clamp of the present utility model.
Description of reference numerals:
11-upper wedge core;12-hyposphene core;111-the first core groove;121-the second core groove;21-lock sleeve;221-U shape screw rod;222-stage clip;223-briquetting;Bar fixed by 224-stage clip;225-baffle plate;226-aluminum body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected;Can be to be mechanically connected, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
As long as just can be combined with each other additionally, technical characteristic involved in this utility model difference embodiment disclosed below does not constitutes conflict each other.
Embodiment 1
The present embodiment provides a kind of locking strain clamp, with reference to Fig. 1, it specifically includes that the upper wedge core 11 for clamping wire and hyposphene core 12, the first core groove 111 and the second core groove 121 is formed respectively on upper wedge core 11 and hyposphene core 12, first core groove 111 and the second core groove 121 are configured to accommodate the metallic channel of wire after fastening, being provided with double wedge in the first core groove 111 and the second core groove 121, preferred as one, described double wedge is the pawl tilted.Preferred as one, upper wedge core 11 and hyposphene core 12 are shaped to wedge shape, and described wedge shape refers to, it includes a big end and a small end.
In order to make the locking strain clamp of the present embodiment avoid to use for a long time or occur to loosen when cold and hot change, thus causing wedge core 11 and hyposphene core 12 can not hold with a firm grip wire, the locking strain clamp of the present embodiment is provided with locking retention device.Below in conjunction with a kind of preferred implementation of Fig. 2, describe this locking retention device in detail:
With reference to Fig. 3, locking retention device includes lock sleeve 21 and bias assembly, this lock sleeve has the wedge shape guide groove being suitable to accommodate wedge core 11 and hyposphene core 12, wedge core 11 and hyposphene core 12 can be slided along wedge shape guide groove after clamping wire, and in sliding process, upper wedge core 11 and hyposphene core 12 are produced and lasting make both pressure close to each other by wedge shape guide groove.Preferred as one, upper wedge core 11 and hyposphene core 12 are respectively provided with an inclined plane, and in wedge shape guide groove correspondence, the inclined plane of wedge core 11 and hyposphene core 12 is provided with two cooperation faces, in sliding process, inclined plane can be oppressed in cooperation face so that upper wedge core 11 and hyposphene core 12 are close to each other, thus clamp wire.
In order to reach locking purpose, locking retention device also includes bias assembly, the partial pressure that this bias assembly is applied is in upper wedge core 11 and hyposphene core 12, wedge core 11 and hyposphene core 12 can be made to have the trend of motion in wedge shape guide groove, so that the cooperation face of wedge shape guide groove persistently persistently produces pressure to the inclined plane of upper wedge core 11 and hyposphene core 12.Thus reach the purpose that pretension is locking.
Technique scheme is the core technology scheme of the present embodiment, lock sleeve 21 is made persistently upper wedge core 11 and hyposphene core 12 to be produced pressure by the setting of locking retention device, thus avoid the locking strain clamp of the present embodiment at life-time service, or the phenomenon loosened during colding and heat succeed each other so that circuit need not maintenance of frequently stopping transport.
As a kind of deformation of above-mentioned embodiment, the exterior contour of described upper wedge core 11 and hyposphene core 12 can also is that cone, correspondence, and the wedge shape guide groove in lock sleeve 21 is also cone;Its another kind of deformation is that upper wedge core 11 and hyposphene core 12 are respectively provided with one or more inclined plane, the wedge shape guide groove in lock sleeve 21 there is the cooperation face coordinated with multiple inclined planes.Under above-mentioned basic inventive concept, those skilled in the art can carry out concrete selection to the wedge shape of upper wedge core 11 and hyposphene core 12 according to specific needs.
With reference to Fig. 1 and Fig. 2, bias assembly includes U-shaped screw rod 221, the two ends of its opening connect the both sides of lock sleeve 21 respectively, preferred as one, the both sides of lock sleeve 21 are provided with ear, and ear arranges connecting hole, screw thread is formed on U-shaped screw rod 221, and be connected on lock sleeve 21 by adjusting nut, but it should be recognized that the connected mode of U-shaped screw rod 221 and lock sleeve 21 is not limited only to this.Also including being arranged on the limit assembly between the big end of U-shaped screw rod 221 closed end and upper wedge core 11, hyposphene core 12, limit assembly can U pull bar 221 be movable relatively or fixes.Two stage clips 222 are separately positioned between limit assembly and upper wedge core 11, hyposphene core 12, so stage clip 222 one end against time on limit assembly in the stationary state, its other end can produce biasing force to upper wedge core 11 or hyposphene core 12, and this biasing force will order about wedge core 11 and hyposphene core 12 mutually clamps.
Specifically, limit assembly includes: two two adjusting nuts being arranged on U-shaped screw rod 221 both sides, and baffle plate 225, and described baffle plate 225 is preferably provided with multiple connecting hole, and at least a part of which comprises two for the connecting hole making U-shaped screw rod 221 pass.Baffle plate 225 is arranged between adjusting nut and upper wedge core 11, hyposphene core 12, by adjusting nut regulation of position on U-shaped screw rod 221, it is thus possible to the position of controllable register 225, additionally, the other end of stage clip 222 is resisted against on baffle plate 225, so that, by the position of regulating fender 225, the biasing force size of stage clip 222 can be regulated.
Preferred as one, with reference to Fig. 2, bias assembly also includes: two briquettings 223, and two briquettings 223 are separately positioned between two stage clips 222 and upper wedge core 11, hyposphene core 12;Being provided with stage clip on briquetting 223 and fix bar 224, stage clip 222 nesting is arranged on described stage clip and fixes on bar 224, thus is not forced distortion and ejects.Fixing bar 224 as the preferred stage clip of one is screw rod, and is connected with my assembly of suspicion by spiral.
Further, stage clip is fixed bar 224 and is arranged through the connecting hole on baffle plate 225, and is fastened by bolts, so setting be advantageous in that can fixed dam 225 further, be allowed to be not easy stress and deflect.
With reference to Fig. 2, preferred as one, limit assembly also includes aluminum body 226, and aluminum body 226 is provided with the connecting hole that at least two can pass for U-shaped screw rod 221, identical with miscellaneous part in limit assembly, aluminum body 226 uses regulation bolt to be fixed equally.Further, in order to make aluminum body 226 to slide, aluminum body 226 and baffle plate 225 are additionally provided with corresponding connecting hole, and by bolt by both fixing connections.
Preferred as one, aluminum body 226 forms the guide-track groove slided for two briquettings 223, so when regulating briquetting 223 position, briquetting 223 can slide along guide-track groove, and is unlikely to position skew.
Additionally, the present embodiment is further preferably gone up forms some provinces hopper on wedge core 11 and hyposphene core 12 respectively, thus play alleviator weight, reduce the purpose of production cost.
It should be understood that obviously the middle stage clip 222 of the present embodiment can use the set-up mode of only, its biasing force simultaneously acts on wedge core 11 and hyposphene core 12, corresponding miscellaneous part also should make corresponding adjustment, such as being also adapted to property of briquetting 223 be adjusted to one, and be resisted against on wedge core 11 and hyposphene core 12 simultaneously;Be adjusted to one etc. of being also adapted to property of bar 224 fixed by stage clip, repeats the most one by one at this.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And among the protection domain that the obvious change thus extended out or variation are created still in this utility model.

Claims (11)

1. a locking strain clamp, including:
Upper wedge core (11), it forms the first core groove (111), is provided with double wedge in described first core groove (111);
Hyposphene core (12), the second core groove (121) corresponding with described first core groove (111) is formed on it, described first core groove (111) is configured to accommodate the metallic channel of wire with described second core groove (121) after fastening, be provided with double wedge in described second core groove (121);
It is characterized in that:
Described upper wedge core (11) and/or described hyposphene core (12) are wedge shape;
Also including locking retention device, described locking retention device includes:
Lock sleeve (21), it forms the wedge shape guide groove being suitable to accommodate the wedge profile of described upper wedge core (11) and described hyposphene core (12);
Bias assembly, described bias assembly applies the biasing force of motion in described wedge shape guide groove to described upper wedge core (11) and described hyposphene core (12), so that the cell wall of described wedge shape guide groove forms the active force of mutually clamping to described upper wedge core (11) and described hyposphene core (12).
Locking strain clamp the most according to claim 1, it is characterised in that:
Described upper wedge core (11) and described hyposphene core (12) form inclined plane the most along its length;
The corresponding described inclined plane of described wedge shape guide groove is provided with cooperation face.
Locking strain clamp the most according to claim 1 and 2, it is characterised in that:
Described bias assembly includes:
∪ shape screw rod (221), the two ends of its opening connect the both sides of described lock sleeve (21) respectively, and its closed end be positioned at described upper wedge core (11) and hyposphene core (12) hold greatly side;
Limit assembly, movable or be fixedly provided between the big end of described ∪ shape screw rod (221) closed end and described upper wedge core (11), hyposphene core (12);
At least one stage clip (222), its one end is against described upper wedge core (11) and/or the big end of hyposphene core (12), the other end is resisted against on described limit assembly, so that described limit assembly is in the stationary state, the biasing force of described stage clip (222) can order about described upper wedge core (11) and/or hyposphene core (12) moves in described wedge shape guide groove.
Locking strain clamp the most according to claim 3, it is characterised in that:
Described stage clip (222) is two, and the most corresponding described upper wedge core (11) and described hyposphene core (12) are arranged.
Locking strain clamp the most according to claim 4, it is characterised in that:
Described bias assembly also includes:
Briquetting (223), described briquetting (223) is two, and is separately positioned between two described stage clips (222) and described upper wedge core (11) and described hyposphene core (12);
Bar (224) fixed by stage clip, and bar (224) fixed by described stage clip is two screw rods, is separately positioned on described briquetting (223), and is connected by bolt with described limit assembly.
Locking strain clamp the most according to claim 3, it is characterised in that:
The opening two ends of described ∪ shape screw rod (221) form screw thread respectively, and the both sides of described lock sleeve (21) form respectively and are suitable to the connecting hole that described ∪ shape screw rod (221) opening two ends are stretched into;
Described ∪ shape screw rod (221) is connected by adjusting nut and described lock sleeve (21) are fixing.
Locking strain clamp the most according to claim 5, it is characterised in that:
Described limit assembly includes:
Two adjusting nuts, are arranged on the both sides of described ∪ shape screw rod (221);
Baffle plate (225), is provided with two connecting holes, and described baffle plate (225) is set on described ∪ shape screw rod (221) by two described connecting holes;
Described stage clip (222) is resisted against on described baffle plate (225).
Locking strain clamp the most according to claim 7, it is characterised in that:
Described stage clip is fixed and is formed screw thread on bar (224);
The corresponding described stage clip of described baffle plate (225) is fixed bar (224) and is provided with connecting hole, and fixes the adjusting nut on bar (224) by described stage clip and regulate the position of described baffle plate (225).
Locking strain clamp the most according to claim 7, it is characterised in that:
Described limit assembly also includes:
Aluminum body (226), it is provided with two connecting holes, and be set on described ∪ shape screw rod (221) by connecting hole, and be positioned between described baffle plate and described upper wedge core (11), hyposphene core (12), corresponding two the described briquettings (223) of described aluminum body (226) are respectively arranged with guide-track groove;
Described briquetting (223) can slide along described guide-track groove the most described aluminum body (226).
Locking strain clamp the most according to claim 9, it is characterised in that:
Described aluminum body (226) and described baffle plate (225) connect by some screws are fixing.
11. locking strain clamps according to claim 1, it is characterised in that:
Province's hopper is formed respectively on described upper wedge core (11) and described hyposphene core (12).
CN201521083833.5U 2015-12-22 2015-12-22 Locking strain clamp Active CN205509428U (en)

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Application Number Priority Date Filing Date Title
CN201521083833.5U CN205509428U (en) 2015-12-22 2015-12-22 Locking strain clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521083833.5U CN205509428U (en) 2015-12-22 2015-12-22 Locking strain clamp

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106848959A (en) * 2016-12-30 2017-06-13 广州程科电子科技有限公司 Circuit fixing device that electric power construction used
CN107045174A (en) * 2017-05-19 2017-08-15 深圳市特发信息光电技术有限公司 A kind of special gold utensil of 8 word optical cable
CN107093879A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Power line fixing device
CN107093875A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Novel power line is fixed device
CN107093878A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Convenient power line fixing device
CN107093877A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Durable circuit fixing device
CN107230846A (en) * 2017-05-12 2017-10-03 广州鑫源恒业电力线路器材股份有限公司 A kind of wedge-shaped splicing fitting
CN108594392A (en) * 2018-07-04 2018-09-28 江苏亨通光电股份有限公司 A kind of 8-shaped optical cable combination wedge gold utensil
CN114069526A (en) * 2021-11-29 2022-02-18 国网浙江慈溪市供电有限公司 Portable strain clamp fastening device
CN115864273A (en) * 2022-08-30 2023-03-28 贵州电网有限责任公司 Strain clamp

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107093877A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Durable circuit fixing device
CN106848959A (en) * 2016-12-30 2017-06-13 广州程科电子科技有限公司 Circuit fixing device that electric power construction used
CN107093879A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Power line fixing device
CN107093875A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Novel power line is fixed device
CN107093878A (en) * 2016-12-30 2017-08-25 广州程科电子科技有限公司 Convenient power line fixing device
CN107230846A (en) * 2017-05-12 2017-10-03 广州鑫源恒业电力线路器材股份有限公司 A kind of wedge-shaped splicing fitting
CN107045174A (en) * 2017-05-19 2017-08-15 深圳市特发信息光电技术有限公司 A kind of special gold utensil of 8 word optical cable
CN108594392A (en) * 2018-07-04 2018-09-28 江苏亨通光电股份有限公司 A kind of 8-shaped optical cable combination wedge gold utensil
CN108594392B (en) * 2018-07-04 2024-07-26 江苏亨通光电股份有限公司 Combined wedge fitting for 8-shaped optical cable
CN114069526A (en) * 2021-11-29 2022-02-18 国网浙江慈溪市供电有限公司 Portable strain clamp fastening device
CN114069526B (en) * 2021-11-29 2023-08-22 国网浙江慈溪市供电有限公司 Portable strain clamp fastening device
CN115864273A (en) * 2022-08-30 2023-03-28 贵州电网有限责任公司 Strain clamp
CN115864273B (en) * 2022-08-30 2024-06-18 贵州电网有限责任公司 Strain clamp

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