CN205283065U - Outside of tubes shell type plugging device - Google Patents

Abstract

The utility model discloses an outer shell type plugging device, include: first sleeve, second sleeve and annular sealing piece. First sleeve has the opening that the power supply cable passed, the second sleeve has the opening that supplies cable channel to pass, and the second sleeve forms with first muffjoint and holds annular sealing piece's space, annular sealing piece is used for sealing clearance between first sleeve and second sleeve and cable and the cable channel, consequently, outside of tubes shell type plugging device has realized cable and cable channel's integral type shutoff sealedly to prevent effectively that water droplet or foreign matter from getting into the interior power cable fault of initiation of cable channel from cable or cable channel outer wall.

Description

Pipe outer casing type plugging device

Technical field

The utility model discloses a kind of pipe outer casing type plugging device, belong to laying cable equipment technical field.

Background technology

In order to prevent water, mouse and other foreign matters from entering raceway internal sabotage cable, it is necessary to raceway to be carried out mending-leakage and shutoff. Common mending-leakage and the mode of shutoff have: fire-proof mud, pipe plugging rubber-bag and other plugging devices etc. being placed in pipe interior. Tradition fire-proof mud price is low, but easily solidifies cracking, and fixing seal persistence is poor; Pipe plugging rubber-bag and other plugging device plugging effects being placed in pipe interior are better than tradition fire-proof mud, but need to shutoff rubber-bag or plugging device be placed between cable and raceway inwall and realize shutoff, when less for pipe diameter or between cable and raceway gap is less, above-mentioned pipe plugging rubber-bag and other plugging devices being placed in pipe interior cannot insert the gap between cable and raceway, therefore, shutoff object cannot be reached.

The pipe outer casing type plugging device of prior art, if publication number is that CN102882177 patent document discloses a kind of outdoor cable protective tube outlet insulation block head, it comprises overcoat, silicon rubber air retaining wall and bolt and forms. The edge, both sides of overcoat is provided with locking edge, locking edge is provided with the through hole passing for bolt and overcoat being fixed on pipeline exit, the inwall of overcoat and locking edge is all provided with silicon rubber air retaining wall. Described overcoat by upper ring cap, spacer shell and under change cover integrally form, spacer shell is between upper ring cap and lower ring set, and upper ring cap and silicon rubber air retaining wall are wrapped on cable, under change cover with silicon rubber air retaining wall be wrapped on the outer wall of pipeline, fix with bolt again, with the outlet of shutoff raceway.

But; block head is fixed on raceway exit by the through hole that the outdoor cable protective tube outlet insulation block head in above-mentioned patent documentation mainly relies on bolt to pass in locking edge; need to tighten or unscrew multiple bolt successively; cause installation or removal very inconvenient; install or remove the length that expends time in; and easily because bolt is not tightened the gap between inside and cable or raceway causing block head; can not reliably seal; water droplet or other foreign matters easily enter in raceway from gap, cause distribution accident.

Practical novel content

The block head that the less raceway in the gap that the technical problems to be solved in the utility model is in prior art to raceway diameter less or cable and raceway carries out shutoff installs problem inconvenient, that sealing effect is not good, thus provides that a kind of block head is easy for installation, the pipe outer casing type plugging device of good sealing effect.

The pipe outer casing type plugging device that the utility model provides, comprising:

First sleeve, has for the opening that cable passes;

2nd sleeve, has for the opening that raceway passes, and described 2nd sleeve is by connecting structure and the first sleeve connection, and is formed and hold space;

Ring seal part, is arranged in described accommodation space, for sealing the gap of described first sleeve and the 2nd between sleeve and cable and raceway.

Preferably, described connection structure is the internal thread being arranged on one of described first sleeve and/or the 2nd sleeve, and is arranged on described first sleeve and/or the 2nd sleeve outside screw with described screw-internal thread fit on another.

Preferably, described first sleeve and/or the 2nd sleeve are divided by the two half-unit distributed vertically and are spliced to form by splicing construction.

Further, described splicing construction is molded on the contact surface that the two half-unit of described first sleeve and/or the 2nd sleeve divides; Described splicing construction comprises the trapezoidal groove that the bottom land width being molded on two half-unit/mono-is greater than opening width, and is molded over two half-unit and divides the trapezoidal projection coordinated with trapezoidal groove on another.

Again further, the vertical section of described trapezoidal groove and trapezoidal projection is isosceles trapezoid.

Preferably, described ring seal part has first sealed structure in gap between described first sleeve of sealing and cable and seals the 2nd sealed structure in described 2nd space between sleeve and raceway.

Preferably, described first sealed structure along described ring seal part circumference forming open outwards and at least one sealing groove of protruding to cable center direction of bottom is.

Preferably, the vertical section of described 2nd sealed structure is the ring structure of wave molding.

Further, described first sleeve inner forms ladder hole, and described 2nd sealed structure is fixed in described ladder hole.

Preferably, the outer wall of described first sleeve and the 2nd sleeve have two planar sections being parallel to each other respectively.

The utility model has the following advantages relative to prior art:

1. the pipe outer casing type plugging device that the utility model provides, for being set in raceway end, for from outside socket and space between hermetically sealed cable pipeline and cable, adopt between first sleeve with the 2nd sleeve easy accessibility be threaded and form hold ring seal part space, owing to there is not the part such as screw or bolt in pipe outer casing type plugging device, therefore can not complete dismounting quickly and easily by special tool, save the maintenance time of power cable.

2. the pipe outer casing type plugging device that the utility model provides, the first sleeve and the 2nd sleeve are divided into two half-unit and divide, and two half-unit is divided by splicing construction splicing composition. Splicing construction comprises the little trapezoidal projection of the outer imperial palace being molded on one of half portion contact surface, and the trapezoidal groove of the correspondence being molded on second half part contact surface. Second half part relative that two half-unit is divided longitudinally is slided and trapezoidal projection is imported trapezoidal groove splicing composition. Therefore, it is possible to conveniently be not inserted in cable or raceway by the restriction of cable length, and do not hinder the first sleeve and the 2nd sleeve to be threaded.

3. the pipe outer casing type plugging device that the utility model provides, ladder hole is formed in 2nd sleeve, being fixed in the ladder hole of the 2nd sleeve by the 2nd sealed structure of ring seal part, after ring seal part is pressed, the 2nd sealed structure produces deformation and raceway formation sealing; First sealed structure of ring seal part is fixed on the outlet step place of raceway, described first sealed structure along ring seal part circumference forming open outwards and bottom protrude to cable center direction, this first sealed structure has at least a sealing groove, therefore ring seal part is pressed and is protruded to cable center direction further in radial direction bottom rear sealing groove, seals together with being formed with cable at least. Thus, pipe outer casing type plugging device achieves the integral type shutoff sealing to raceway and cable, thus prevents water droplet or foreign matter from entering from cable or raceway outer wall and cause power failure in raceway.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is enforcement modes more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of pipe outer casing type plugging device of the present utility model;

Fig. 2 is the decomposing schematic representation of the pipe outer casing type plugging device shown in Fig. 1;

Fig. 3 is the structure iron after pipe outer casing type plugging device of the present utility model is installed;

Fig. 4 be the pipe outer casing type plugging device shown in Fig. 3 A-A to sectional view;

Reference numeral: 1-the 2nd spiral shell cover; The trapezoidal projection of 11-; 2-ring seal part; 3-first spiral shell cover;

31-ladder hole; 4-raceway; 5-cable.

Embodiment

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 the utility model part embodiment, instead of whole embodiments. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.

In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, it is possible to be fixedly connected with, it is also possible to be removably connect, or connect integratedly; Can be mechanically connected, it is also possible to be electrical connection; Can be directly be connected, it is also possible to be indirectly connected by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to particular case understands the concrete implication of above-mentioned term in the utility model.

In addition, if below in the described different enforcement mode of the utility model involved technology feature do not form conflict each other and just can be combined with each other.

Embodiment

The utility model provides a kind of pipe outer casing type plugging device, as shown in Figure 1, comprising:

First sleeve 3, has for the opening that cable 5 passes;

2nd sleeve 1, has for the opening that raceway 4 passes, and by connecting, structure is connected described 2nd sleeve 1 with the first sleeve 3, and is formed and hold space;

Ring seal part 2, is arranged in described accommodation space, for sealing described first sleeve 3 and the 2nd sleeve 1 and the gap between cable 5 and raceway 4.

As shown in Figure 4, the pipe outer casing type plugging device of the present embodiment is used for being set in raceway 4 end, for from outside socket and space between hermetically sealed cable pipeline 4 and cable 5, ring seal part 2 is positioned at the inner chamber being made up of the first sleeve 3, the 2nd sleeve 1 and cable 5, raceway 4. First sleeve 3 is protected after being connected with the 2nd sleeve 1 and is extruded annular sealing member 2; produce ring seal part 2 shutoff first sleeve 3 of deformation and the gap between cable 5, the 2nd sleeve 1 and raceway 4; thus cable 5 and raceway 4 are sealed, prevent water droplet or other foreign matters from entering in raceway 4 and cause power cable fault.

Further, described connection structure is the internal thread being arranged on one of described first sleeve 3, and is arranged on the outside screw with described screw-internal thread fit of the 2nd sleeve 1 on another.

Certainly, internal thread also can be arranged on the 2nd sleeve 1, and outside screw also can be arranged on the first sleeve 3.

The mode of connection of the first sleeve 3 and the 2nd sleeve 1 is for being threaded, being threaded in installation or removal process can not tighten the first sleeve 3 and the 2nd sleeve 1 or unscrew by special tool quickly and easily, therefore during power failure, it is possible to effectively save repairing and the maintenance time of power cable. As shown in Figure 2, it may be preferred that described screw thread can be Thury thread.

As the distortion connecting structure, also link by card between the first sleeve 3 and the 2nd sleeve 1 and connect, be connected together between the first sleeve 3 and the 2nd sleeve 1 during installation, it is also possible to ring seal part 2 continu to press, seal.

Described first sleeve 3 and/or the 2nd sleeve 1 are divided by the two half-unit distributed vertically and are spliced to form by splicing construction.

Further, described splicing construction is molded on the contact surface that the two half-unit of described first sleeve 3 and/or the 2nd sleeve 1 divides; Described splicing construction comprises the trapezoidal groove that the bottom land width being molded on two half-unit/mono-is greater than opening width, and is molded over two half-unit and divides coordinate with trapezoidal groove on another trapezoidal protruding 11. Trapezoidal protruding 11 and trapezoidal groove all refer to that vertical section is trapezoidal, it is preferable to isosceles trapezoid.

As shown in Figure 2, the first sleeve 3 and the 2nd sleeve 1 are divided by two half-unit and are spliced by splicing construction, therefore can not by cable 5 line length restriction convenient ground installation sleeve on cable 5 or raceway 4, convenient splicing. Described splicing construction is positioned at two half-unit and divides on respective axial contact surface. Two contact surfaces of one of half portion form two trapezoidal protruding 11 respectively, another two contact surfaces of half portion forms two respectively for the trapezoidal groove with trapezoidal projection splicing 11.

As one distortion, two half-unit is divided and can be made completely identical, can form trapezoidal projection by a contact surface in two contact surfaces of half portion, and another contact surface forms trapezoidal groove.

When assembling the first sleeve 3 or the 2nd sleeve 1, the half portion that two half-unit is divided longitudinally slides relative to second half part and trapezoidal projection imports trapezoidal groove splicing composition the first sleeve 3 or the 2nd sleeve 1.

As one distortion, described trapezoidal protruding 11 and trapezoidal groove can become the protruding and corresponding T-shaped groove of T-shaped, and other make projection that the first sleeve 3 or the 2nd sleeve 1 can not radially depart from and corresponding groove.

Described ring seal part 2 has first sealed structure in gap between described first sleeve 3 of sealing and cable 5 and seals the 2nd sealed structure in gap between described 2nd sleeve 1 and raceway 4.

As shown in Figure 4, ring seal part 2 is arranged in and threads a pipe the 4 accommodation spaces formed by the first sleeve 3, the 2nd sleeve 1 and cable 5, cable. After first sleeve 3 is connected with the 2nd sleeve 1, extruding annular sealing member 2 makes it produce deformation. Ring seal part 2 comprises the first sealed structure and the 2nd sealed structure, the gap that the first sealed structure is used between shutoff first sleeve 3 and cable 5; The gap that 2nd sealed structure is used between shutoff the 2nd sleeve 1 and raceway 4, therefore, pipe outer casing type plugging device achieves the integral type shutoff sealing to cable 5 and raceway 4, thus prevents water droplet or foreign matter from entering and cause power cable fault in raceway 4.

Specifically, described first sealed structure along described ring seal part 2 circumference forming open outwards and at least one sealing groove of protruding to cable 5 center position of bottom is.

When ring seal part 2 is squeezed, the sealing groove that its first sealed structure protrudes to cable 5 center position further protrudes to cable 5 center position, heaves, so that form sealing between the first sealed structure and cable 5; If the quantity of described sealing groove is two, then there is two seals between the first sealed structure and cable 5, analogize with this, it is possible to You Gengduo road, sealing groove seals better effects if more at most. Therefore, it is possible to prevent water droplet or other foreign matters from entering in raceway 4 from cable 5.

The vertical section of described 2nd sealed structure is the ring structure of wave molding.

When ring seal part 2 is squeezed, vertical section on its 2nd sealed structure is that the ring structure of wave molding is pressed to and radially-inwardly heaves, then formation sealing between ring seal part 2 and raceway 4 outer wall, is therefore possible to prevent water droplet or other foreign matters enter in raceway 4 from raceway 4 outer wall.

Described first sleeve 3 inside forms ladder hole 31, and described 2nd sealed structure is fixed in described ladder hole 31.

Ladder hole 31, for the 2nd sealed structure of stationary annular sealing member 2, prevents ring seal part 2 from sliding axially because being squeezed so that it is produce deformation and cable 5, raceway 4 formation sealing after being pressed.

Further, the outer wall of described first sleeve 3 and the 2nd sleeve 1 have two planar sections being parallel to each other respectively.

The outer wall of the first sleeve 3 and the 2nd sleeve 1 arranges planar section, it is possible to the tool cards such as convenient wrench tightly and drive it to rotate. When not by instrument, described two planar sections being parallel to each other can also handled easily personnel exert a force, and prevents from skidding, conveniently the first sleeve 3 or the 2nd sleeve 1 is fixed, tighten or unscrew another sleeve. This planar part surface can roughened, increase rotate time frictional force.

As one distortion, described planar section can be arranged to and the cancave cambered surface becoming finger to adapt.

Practical novel preferred as to pipe outer casing type stopper materials, described ring seal part 2 material is low-phenyl silicone rubber, and fire-protection rating is V0; First sleeve 3, the 2nd sleeve 1 material are polyphthalamide, and fire-protection rating is V0.

Obviously, above-described embodiment is only for example is clearly described, and not to the restriction of the mode of enforcement. For those of ordinary skill in the field, other multi-form change or variations can also be made on the basis of the above description. Here without the need to also cannot all enforcement modes be given exhaustive. And the apparent change thus extended out or variation are still among the protection domain of the utility model creation.

Claims (10)

1. pipe outer casing type plugging device, it is characterised in that, comprising:

First sleeve (3), has for the opening that cable (5) passes;

2nd sleeve (1), has for the opening that raceway (4) passes, and by connecting, structure is connected described 2nd sleeve (1) with the first sleeve (3), and is formed and hold space;

Ring seal part (2), is arranged in described accommodation space, for sealing described first sleeve (3) and the 2nd sleeve (1) and the gap between cable (5) and raceway (4).

2. pipe outer casing type plugging device according to claim 1, it is characterized in that, the internal thread of described connection structure for being arranged on one of described first sleeve (3) and/or the 2nd sleeve (1), and it is arranged on described first sleeve (3) and/or the 2nd sleeve (1) outside screw with described screw-internal thread fit on another.

3. pipe outer casing type plugging device according to claim 1 and 2, it is characterised in that, described first sleeve (3) and/or the 2nd sleeve (1) are divided by the two half-unit distributed vertically and are spliced to form by splicing construction.

4. pipe outer casing type plugging device according to claim 3, it is characterised in that, described splicing construction is molded on the contact surface that the two half-unit of described first sleeve (3) and/or the 2nd sleeve (1) divides; Described splicing construction comprises the trapezoidal groove that the bottom land width being molded on two half-unit/mono-is greater than opening width, and is molded over two half-unit and divides the trapezoidal projection (11) coordinated with trapezoidal groove on another.

5. pipe outer casing type plugging device according to claim 4, it is characterised in that, the vertical section of described trapezoidal groove and trapezoidal projection (11) is isosceles trapezoid.

6. pipe outer casing type plugging device according to claim 1 and 2, it is characterized in that, described ring seal part (2) has the 2nd sealed structure in space between first sealed structure in gap between described first sleeve (3) of sealing and cable (5) and described 2nd sleeve (1) of sealing and raceway (4).

7. pipe outer casing type plugging device according to claim 6, it is characterized in that, described first sealed structure along described ring seal part (2) circumference forming open outwards and at least one sealing groove of protruding to cable (5) center position of bottom is.

8. pipe outer casing type plugging device according to the 6 of claim, it is characterised in that, the vertical section of described 2nd sealed structure is the ring structure of wave molding.

9. pipe outer casing type plugging device according to the 8 of claim, it is characterised in that, described first sleeve (3) inside forms ladder hole (31), and described 2nd sealed structure is fixed in described ladder hole (31).

10. pipe outer casing type plugging device according to claim 1 and 2, it is characterised in that, the outer wall of described first sleeve (3) and the 2nd sleeve (1) has two planar sections being parallel to each other respectively.