CN209448370U - A kind of line of power sheath - Google Patents

Abstract

The utility model relates to the technical field of municipal electric power facility auxiliary equipment, more particularly to a kind of line of power sheath, including tubule, extra heavy pipe and reducing connecting tube, and tubule, extra heavy pipe be provided with the edge of reducing connecting tube together with gap；Including two class upper limit position rings and two lower class limit position rings；It further include latch on two groups, two groups of upper mounting plates, latch under two groups, two groups of lower installation boards, bolt under bolt and two groups on two groups, the rear end of bolt is respectively from passing through installation through-hole and spiral shell is filled to inside two groups of upper tapped through hole respectively on two groups on two groups, and under two groups bolt rear end respectively from passing through installation through-hole under two groups and spiral shell is filled under two groups inside tapped through hole respectively；It further include reflection alarming item, reflection alarming item is pasted respectively on tubule, extra heavy pipe and reducing connecting tube outer wall.

Description

A kind of line of power sheath

Technical field

The utility model relates to the technical fields of municipal electric power facility auxiliary equipment, protect more particularly to a kind of line of power Set.

Background technique

Line of power sheath is a kind of protective case of the guy strand of electric pole, is divided into telecommunications and the protection of electric power lateral conductor Set, and can be described as passageway warning pipe, it is widely used in a variety of applications in the field of municipal electric power facility.

Line of power protective-cover type in the prior art is sequentially connected by tubule, extra heavy pipe and reducing connecting tube to be made, thin Pipe, extra heavy pipe be provided with the edge of reducing connecting tube together with gap, when installation directly passes through gap for tubule, extra heavy pipe and variable diameter Connecting tube is successively sleeved on the outside of line of power；Its find in use tubule, extra heavy pipe and reducing connecting tube it Between be easy to happen separation, influence using poor to the protective capability of line of power；Tubule, extra heavy pipe and reducing connecting tube are long simultaneously After phase use, gap thereon tends to get bigger under external environment, and then tubule, extra heavy pipe and reducing connecting tube and electric power is caused to draw It is easily detached between line, use reliability is lower；And it is lower in night significant degree, is easy to cause Vehicular impact and occurs Danger, safety are poor.

Utility model content

Technical problem to be solved by the utility model is: for overcome the deficiencies in the prior art, providing a kind of line of power Sheath.

The technical solution adopted by the utility model to solve its technical problems is that: a kind of line of power sheath, including tubule, Extra heavy pipe and reducing connecting tube, and tubule, extra heavy pipe be provided with the edge of reducing connecting tube together with gap；Including two class upper limits Position ring and two lower class limit position rings, two class upper limit position ring are fixedly set in the outer lower side of the tubule respectively, and described two groups The lower limit ring fixed external upper for being set in the extra heavy pipe respectively, and between two class upper limit position rings and two lower class limit position rings it Between be respectively arranged with the first interval and second interval, circumferential inner wall the upper side and lower side of the reducing connecting tube be respectively arranged with The first annular spacing collar and the second annular stop circle that first interval and the second interval match；Further include latch on two groups, Two groups of upper mounting plates, latch under two groups, two groups of lower installation boards, bolt, the reducing connecting tube under bolt and two groups on two groups Including first half connecting tube and later half connecting tube, latch is respectively fixedly connected in later half connecting tube left end outer wall on described two groups The upside of upside and right end outer wall, and latch is respectively fixedly connected under the outer wall of later half connecting tube left end under described two groups The downside of side and right end outer wall, two groups of upper mounting plates are respectively fixedly connected in the upside and the right side of first half connecting tube left end outer wall The upside of outer wall is held, and two groups of lower installation boards are respectively and fixedly installed to downside and the right end of first half connecting tube left end outer wall The downside of outer wall is provided with pre-and post perforative upper tapped through hole on latch on two groups, and is all provided on latch under two groups It is equipped with pre-and post perforative lower tapped through hole, pre-and post perforative upper installation through-hole, and two groups are provided on two groups of upper mounting plates Pre-and post perforative lower installation through-hole is provided on lower installation board, the rear end of bolt is pacified from two groups respectively on described two groups It fills through-hole and spiral shell is filled to inside two groups of upper tapped through hole respectively, and the rear end of bolt passes through under two groups certainly respectively under described two groups Installation through-hole and respectively spiral shell are filled under two groups inside tapped through hole；It further include reflection alarming item, the reflection alarming item sticks respectively It is attached on tubule, extra heavy pipe and reducing connecting tube outer wall.

Preferably, the utility model improvement has, it further include that two class upper limit positions circle and two lower class limit positions are enclosed, on described two groups Spacing collar is arranged concentrically on the front end of two groups of upper mounting plates respectively, and two class upper limit positions circle inside is provided with upper limit Chamber, connection through-hole is provided on the rear end inner wall of two class upper limit position chambers, and the front end of two class upper limit positions circle is provided with Upper adjusting through-hole, the end cap on described two groups on bolt are located at two class upper limit position chamber interiors, and bolt on two groups Rear end from two class upper limit position chamber interiors and is pierced by inside connection through-hole, two lower class limit position circle is same respectively on two groups respectively The front end of two groups of lower installation boards is arranged in the heart, and lower limit chamber is provided with inside the circle of two lower class limit positions, under two groups It limiting and is provided with lower connection through-hole under the rear end inner wall of chamber, the front end of two lower class limit positions circle is provided with lower adjusting through-hole, End cap under described two groups under bolt is located at two lower class limit position chamber interiors, and under two groups bolt rear end respectively from two Lower class limit position chamber interior and being pierced by under two groups connects inside through-hole.

It further include connecting spring under connecting spring and two groups on two groups preferably, the utility model improvement has, described two Connecting spring is respectively sleeved on described two groups outside bolt in group, and on two groups connecting spring front end respectively with described two The rear end of class upper limit position circle connects, and the rear end of connecting spring is connect with the front end of two groups of upper mounting plates respectively on two groups, and described two The lower connecting spring of group is respectively sleeved under described two groups outside bolt, and under two groups connecting spring front end respectively with described two The rear end of lower class limit position circle connects, and the rear end of connecting spring is connect with the front end of two groups of lower installation boards respectively under two groups.

Preferably, the utility model improvement has, it further include that bolt is disposed as ten under bolt and two groups on described two groups Head bolt.

Preferably, the utility model improvement has, it is fixed that multiple groups have been uniformly arranged on the front end outer wall of the later half connecting tube Position inserting column, and multiple groups positioning jack is correspondingly arranged on the rear end outer wall of the first half connecting tube, the multiple groups positioning is inserted Column is inserted into respectively inside multiple groups positioning jack.

Preferably, the utility model improvement has, the tubule, extra heavy pipe and reducing connecting tube are disposed as PVC material.

Preferably, the utility model improvement has, and it further include two groups of upper locking nuts and two groups of lower locking nuts, described two Spiral shell encapsulation is located under bolt on two groups and two groups outside the rear end of bolt respectively for group upper locking nut and two groups of lower locking nuts, and And the front end of two groups of upper locking nuts and two groups of lower locking nuts respectively with it is two groups described on latch under latch and two groups Rear end locking contact.

Preferably, the utility model improvement has, the reflection alarming item is colorful warning item red and white.

Based on the above-mentioned technical proposal, the utility model can produce following technical effect: can be by making first annular limit Position circle is fastened in the first interval of two class upper limit position rings, while by making the second annular stop circle be fastened on two lower class limit position rings The second interval in, prevent tubule and extra heavy pipe from extracting inside reducing connecting tube respectively, improve tubule, extra heavy pipe and reducing connecting tube Between concatenation ability, improve to the protective capability of line of power；It, will be thin by the setting of first half connecting tube and later half connecting tube After pipe and extra heavy pipe are fastened on respectively on first annular spacing collar and the second annular stop circle, while passing through bolt on two groups and two groups The spiral shell between threaded hole under two groups of upper screwed holes and two groups assembles conjunction to lower bolt respectively, and tubule and extra heavy pipe spiral-lock are connected in variable diameter Nozzle interior prevents tubule, extra heavy pipe and reducing connecting tube to be detached between line of power on gap, improves using reliable Property；And it can be improved in the significant degree at night by reflection alarming item to the reflex of light, prevent Vehicular impact and It causes danger, improves safety.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is only some embodiments of the utility model, for those of ordinary skill in the art, in not making the creative labor property Under the premise of, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the preferred overall structure diagram of the utility model one；

Fig. 2 is the overall structure diagram that the utility model tubule, extra heavy pipe and reducing connecting tube and reflection alarming item are pasted；

Fig. 3 is the structural schematic diagram of the utility model reducing connecting tube；

Fig. 4 is left view body structural schematic diagram of the utility model to group positioning inserting column and the cooperation of multiple groups positioning jack；

Fig. 5 be latch on two groups of the utility model, on two groups of upper mounting plates and two groups the connections such as bolt plan structure Schematic diagram；

Fig. 6 is the partial enlargement structural representation in the utility model Fig. 4 at A；

It is attached marked in the figure: 1, tubule；2, extra heavy pipe；3, reducing connecting tube；4, upper limit ring；5, lower limit ring；6, the first ring Shape spacing collar；7, the second annular stop circle；8, upper latch；9, upper mounting plate；10, upper bolt；11, reflection alarming item；12, on Spacing collar；13, upper connecting spring；14, inserting column is positioned；15, upper locking nut.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of a other elements or combinations thereof.

As shown in Figures 1 to 6, a kind of line of power sheath of the utility model, including tubule 1, extra heavy pipe 2 are connected with variable diameter Pipe 3, and tubule 1, extra heavy pipe 2 be provided with the edge of reducing connecting tube 3 together with gap；Including two class upper limit position rings 4 and two Lower class limit position ring 5, two class upper limit position rings 4 are fixedly set in the outer lower side of tubule 1 respectively, and two lower class limit position rings 5 are fixed respectively It is set in the external upper of extra heavy pipe 2, and is respectively arranged with first between two lower class limit position rings 5 between two class upper limit position rings 4 Interval and the second interval, circumferential inner wall the upper side and lower side of reducing connecting tube 3 are respectively arranged with and the first interval and the second interval The first annular spacing collar 6 and the second annular stop circle 7 to match；It further include 8, two groups of upper mounting plates 9, two of latch on two groups The lower latch of group, two groups of lower installation boards, bolt under bolt 10 and two groups on two groups, reducing connecting tube 3 include first half connecting tube and Later half connecting tube, on two groups latch 8 be respectively fixedly connected with later half connecting tube left end outer wall upside and right end outer wall it is upper Side, and latch is respectively fixedly connected with the downside in later half connecting tube left end outer wall and the downside of right end outer wall under two groups, two Group upper mounting plate 9 is respectively fixedly connected with the upside in first half connecting tube left end outer wall and the upside of right end outer wall, and under two groups Mounting plate is respectively and fixedly installed to the downside of first half connecting tube left end outer wall and the downside of right end outer wall, on two groups on latch 8 It is provided with pre-and post perforative upper tapped through hole, and is provided with pre-and post perforative lower tapped through hole under two groups on latch, It is provided with pre-and post perforative upper installation through-hole on two groups of upper mounting plates 9, and is provided with front and back on two groups of lower installation boards and passes through The lower installation through-hole worn, the rear end of bolt 10 is respectively from passing through installation through-hole on two groups and spiral shell is filled to spiral shell on two groups respectively on two groups Inside line through-hole, and the rear end of bolt passes through installation through-hole under two groups certainly respectively under two groups and spiral shell is filled to screw thread under two groups respectively Inside through-hole；It further include reflection alarming item 11, reflection alarming item 11 is pasted respectively outside tubule 1, extra heavy pipe 2 and reducing connecting tube 3 On wall；It can be by being fastened on first annular spacing collar in the first interval of two class upper limit position rings, while by making the second ring Shape spacing collar is fastened in the second interval of two lower class limit position rings, prevents tubule and extra heavy pipe from pulling out inside reducing connecting tube respectively Out, the concatenation ability between tubule, extra heavy pipe and reducing connecting tube is improved, the protective capability to line of power is improved；Pass through first half Tubule and extra heavy pipe are fastened on first annular spacing collar and the second annular stop circle by the setting of connecting tube and later half connecting tube respectively After upper, while the spiral shell between threaded hole under two groups of upper screwed holes and two groups fills respectively by bolt under bolt on two groups and two groups Cooperation, by tubule and extra heavy pipe spiral-lock inside reducing connecting tube, prevent tubule, extra heavy pipe and reducing connecting tube on gap with electric power It is detached between bracing wire, improves use reliability；And it can be improved by reflection alarming item to the reflex of light It in the significant degree at night, prevents Vehicular impact and causes danger, improve safety.

As shown in fig. 6, further include that two class upper limit positions circle 12 and two lower class limit positions are enclosed in further specific embodiment, Two class upper limit positions circle 12 is arranged concentrically on the front end of two groups of upper mounting plates 9 respectively, and is respectively provided with inside two class upper limit positions circle 12 There is upper limit chamber, connection through-hole is provided on the rear end inner wall of two class upper limit position chambers, before two class upper limit positions enclose 12 End is provided with adjusting through-hole, and the end cap on two groups on bolt 10 is located at two class upper limit position chamber interiors, and two groups The rear end of upper bolt 10 from two class upper limit position chamber interiors and is pierced by inside connection through-hole, two lower class limit positions are enclosed on two groups respectively It is arranged concentrically on the front end of two groups of lower installation boards respectively, and is provided with lower limit chamber inside the circle of two lower class limit positions, two groups Lower connection through-hole is provided under the rear end inner wall of lower limit chamber, the front end of two lower class limit positions circle is provided with lower adjust and leads to Hole, the end cap under two groups under bolt are located at two lower class limit position chamber interiors, and under two groups bolt rear end respectively from two Lower class limit position chamber interior and being pierced by under two groups connects inside through-hole；It can be enclosed by two class upper limit positions and two lower class limit positions are enclosed Setting, turn bolt under bolt and two groups in two class upper limit position chambers and two lower class limit position chamber interiors respectively It is dynamic, the setting of through-hole is adjusted under through-hole and two groups by adjusting on two groups, operator is facilitated to rotate using tools such as screwdrivers Upper bolt and lower bolt, so as to so that on two groups bolt under two groups between bolt and first half connecting tube it is integrated, prevent two Bolt is detached from and loses under bolt and two groups in group, improves use reliability.

It further include being connected under connecting spring 13 and two groups on two groups as shown in fig. 6, in further specific embodiment Spring, connecting spring 13 is respectively sleeved on two groups outside bolt 10 on two groups, and on two groups connecting spring 13 front end point It is not connect with the rear end of two class upper limit positions circle 12, the rear end of connecting spring 13 front end with two groups of upper mounting plates 9 respectively on two groups Connection, connecting spring is respectively sleeved under two groups outside bolt under two groups, and under two groups connecting spring front end respectively with two The rear end of lower class limit position circle connects, and the rear end of connecting spring is connect with the front end of two groups of lower installation boards respectively under two groups；It can lead to The retractility for crossing connecting spring under connecting spring on two groups and two groups facilitates the precession of bolt under bolt on two groups and two groups respectively Installation and back-out disassembly.

It further include that bolt is excellent under bolt 10 and two groups on two groups as shown in fig. 6, in further specific embodiment Choosing is set as Phillips head bolts；Facilitate operator using screwdriver respectively in two class upper limit position chambers and two lower class limit position chambers Bolt under bolt and two groups on two groups of internal rotating.

As shown in figure 4, being uniformly arranged multiple groups on the front end outer wall of later half connecting tube in further specific embodiment Inserting column 14 is positioned, and is correspondingly arranged on multiple groups positioning jack on the rear end outer wall of first half connecting tube, multiple groups position inserting column 14 It is inserted into inside multiple groups positioning jack respectively；The inserting column cooperation between multiple groups positioning jack respectively can be positioned by multiple groups, Make to fasten between first half connecting tube and later half connecting tube precisely, improves use reliability.

As shown in Figure 1, tubule 1, extra heavy pipe 2 and reducing connecting tube 3 are disposed as PVC in further specific embodiment Material；PVC material is light-weight, carries convenient for operator, saves manpower.

As shown in fig. 6, further including being locked under two groups of upper locking nuts 15 and two groups in further specific embodiment Spiral shell encapsulation is located at bolt under bolt 10 on two groups and two groups respectively for nut, two groups of upper locking nuts 15 and two groups of lower locking nuts Outside rear end, and the front end of two groups of upper locking nuts 15 and two groups of lower locking nuts respectively with two groups on latch 8 and two groups Lock contact in the rear end of lower latch；The first half after fastening can be connected by two groups of upper locking nuts and two groups of lower locking nuts Adapter tube and later half connecting tube do further fastening, improve use reliability.

As depicted in figs. 1 and 2, in further specific embodiment, reflection alarming item 11 is that colour red and white is alert Show item；By colour setting red and white, keep tubule, extra heavy pipe and reducing connecting tube more obvious.

Working principle: tubule and extra heavy pipe are sleeved on line of power by gap first, then put later half connecting tube It sets in tubule and extra heavy pipe rear, is fastened on first annular spacing collar and the second annular stop circle respectively between the first interval and second Every inside, the inserting column cooperation between multiple groups positioning jack respectively then is positioned by multiple groups, after first half connecting tube is fastened on On half-connection pipe, then passed through respectively using screwdriver adjusted on two groups adjusted under through-hole and two groups through-hole rotate upper bolt and under Bolt will lock between first half connecting tube and later half connecting tube, and respectively by locking screw under two groups of upper locking nuts and two groups The other spiral shell of mother stock is filled on two groups on bolt and two groups of rear bolts, will further be locked between first half connecting tube and later half connecting tube, By reflection alarming item to the reflex of light, it is improved in the significant degree at night, Vehicular impact is prevented and causes danger, lead to The retractility for crossing connecting spring under connecting spring on two groups and two groups facilitates the precession of bolt under bolt on two groups and two groups respectively Installation and back-out disassembly.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention, It is a, three etc., unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down " It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combination and combination.

In addition, term " installation ", " being provided with ", " connection ", " connection ", " suit " shall be understood in a broad sense, for example, it may be It is fixedly connected, is detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or Being or is two connections internal between device, element or component indirectly connected through an intermediary, for ability For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into modification.

Claims (8)

1. a kind of line of power sheath, including tubule (1), extra heavy pipe (2) and reducing connecting tube (3), and tubule (1), extra heavy pipe (2) Gap together with being provided with the edge of reducing connecting tube (3)；It is characterised in that it includes under two class upper limit position rings (4) and two groups Stop collar (5), two class upper limit position ring (4) are fixedly set in the outer lower side of the tubule (1), two lower class limit respectively Position ring (5) the fixed external upper for being set in the extra heavy pipe (2) respectively, and between two class upper limit position rings (4) and two lower class limits The first interval and the second interval, circumferential inner wall the upper side and lower side of the reducing connecting tube (3) are respectively arranged between position ring (5) It is respectively arranged with the first annular spacing collar (6) and the second annular stop circle (7) to match with the first interval and the second interval；Also Including bolt (10) on latch under latch (8) on two groups, two groups of upper mounting plates (9), two groups, two groups of lower installation boards, two groups Bolt under with two groups, the reducing connecting tube (3) includes first half connecting tube and later half connecting tube, latch (8) on described two groups It is respectively fixedly connected with the upside in later half connecting tube left end outer wall and the upside of right end outer wall, and latch point under described two groups It is not fixedly connected on the downside of later half connecting tube left end outer wall and the downside of right end outer wall, two groups of upper mounting plates (9) are respectively It is fixedly connected on the upside of first half connecting tube left end outer wall and the upside of right end outer wall, and two groups of lower installation boards are solid respectively Before Dingan County is provided on latch (8) on the downside of first half connecting tube left end outer wall and the downside of right end outer wall, two groups Perforative upper tapped through hole afterwards, and pre-and post perforative lower tapped through hole is provided under two groups on latch, it is installed on two groups It is provided with pre-and post perforative upper installation through-hole on plate (9), and is provided with pre-and post perforative lower peace on two groups of lower installation boards Through-hole is filled, the rear end of bolt (10) is respectively from across installation through-hole on two groups and spiral shell is filled to screw thread on two groups respectively on described two groups Inside through-hole, and the rear end of bolt passes through installation through-hole under two groups certainly respectively under described two groups and spiral shell is filled to spiral shell under two groups respectively Inside line through-hole；Further include reflection alarming item (11), the reflection alarming item (11) paste respectively tubule (1), extra heavy pipe (2) and On reducing connecting tube (3) outer wall.

2. a kind of line of power sheath as described in claim 1, which is characterized in that further include two class upper limit positions circle (12) and two Lower class limit position circle, two class upper limit position circle (12) are arranged concentrically on the front end of two groups of upper mounting plates (9), and two respectively It is provided with upper limit chamber inside class upper limit position circle (12), is provided with connection on the rear end inner wall of two class upper limit position chambers The front end of through-hole, two class upper limit positions circle (12) is provided with adjusting through-hole, the end cap difference on described two groups on bolt (10) Positioned at two class upper limit position chamber interiors, and on two groups, the rear end of bolt (10) from two class upper limit position chamber interiors and is pierced by respectively It being connected inside through-hole on to two groups, the front end for being arranged concentrically on two groups of lower installation boards respectively is enclosed in two lower class limit position, and And two lower class limit position circle it is internal be provided with lower limit chamber, be provided with lower connection under the rear end inner wall of two lower class limit position chambers The front end of through-hole, two lower class limit positions circle is provided with lower adjusting through-hole, and the end cap under described two groups under bolt is located at two groups Lower limit chamber interior, and the rear end of bolt from two lower class limit position chamber interiors and is pierced by connecting under two groups respectively under two groups Inside through-hole.

3. a kind of line of power sheath as claimed in claim 2, which is characterized in that further include on two groups connecting spring (13) and Connecting spring under two groups, it is external to be respectively sleeved at bolt (10) on described two groups for connecting spring (13) on described two groups, and two The front end of connecting spring (13) is connect with the rear end of two class upper limit position circle (12) respectively in group, connecting spring (13) on two groups Rear end connect respectively with the front end of two groups of upper mounting plates (9), connecting spring is respectively sleeved under described two groups under described two groups Outside bolt, and the front end of connecting spring is connect with the rear end of two lower class limit position circle respectively under two groups, is connected under two groups The rear end of spring is connect with the front end of two groups of lower installation boards respectively.

4. a kind of line of power sheath as claimed in claim 3, which is characterized in that further include on described two groups bolt (10) and Bolt is disposed as Phillips head bolts under two groups.

5. a kind of line of power sheath as claimed in claim 4, which is characterized in that on the front end outer wall of the later half connecting tube It has been uniformly arranged multiple groups positioning inserting column (14), and has been correspondingly arranged on multiple groups positioning on the rear end outer wall of the first half connecting tube Jack, multiple groups positioning inserting column (14) are inserted into respectively inside multiple groups positioning jack.

6. a kind of line of power sheath as claimed in claim 5, which is characterized in that the tubule (1), extra heavy pipe (2) and variable diameter Connecting tube (3) is disposed as PVC material.

7. a kind of line of power sheath as claimed in claim 6, which is characterized in that further include two groups of upper locking nuts (15) and Two groups of lower locking nuts, spiral shell encapsulation is located at bolt on two groups respectively for two groups of upper locking nuts (15) and two groups of lower locking nuts (10) and under two groups outside the rear end of bolt, and the front end of two groups of upper locking nuts (15) and two groups of lower locking nuts respectively with Contact is locked in the rear end of latch under latch (8) and two groups on described two groups.

8. a kind of line of power sheath as claimed in claim 7, which is characterized in that the reflection alarming item (11) is red white phase Between colorful warning item.