CN201230175Y

CN201230175Y - Electric cable pipe joint

Info

Publication number: CN201230175Y
Application number: CNU2008201509324U
Authority: CN
Inventors: 王慧军
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2008-07-17
Filing date: 2008-07-17
Publication date: 2009-04-29
Anticipated expiration: 2018-07-17

Abstract

A cable conduit joint being capable of effectively preventing seeper from flowing into an electric panel case usually comprises a main body, a cable hose snap ring and a cover. A through hole is arranged in the main body, one end of which is connected with the electric panel case by a bolt. The cable hose snap ring is arranged in the main body and is provided with a metal hose sleeved the cable and the snap ring blocking the metal hose. The cover is connected with the other end of the main body by the bolt. The cable conduit joint is formed by connecting a preloaded gland cover and a drainage adapter ring in series in turn between the main body and the cable hose snap ring. The preloaded gland cover is pressed inside the through hole of the main body, which is the trumpet-type part with a cavity and is made from elastic waterproof material. The drainage adapter ring is the column-shaped part with a cavity. A plurality of waterspouts are arranged along the different radial directions. One end of the drainage adapter ring is connected with the main body and the other end is provided with a cable hose snap ring joint inside and is connected with the cover by the bolt. The utility model has the advantages of simple structure, convenient installation and low cost, which can prevent seeper from flowing into the electric panel case effectively and consequently reduce the electric installation breakdown caused by seeper.

Description

Cable tube joint

Technical field

The utility model relates to the electric equipment guard technology, refers in particular to a kind of cable tube joint device that is connected with electrical panel case, terminal box in order to cable with waterproof, draining and fire-proof function.

Background technology

The existing common cable pipe joint arrangement that is connected with electrical panel case, terminal box in order to cable as shown in Figure 1, 2, wherein: Fig. 1 is the exploded view of existing cable tube joint; Fig. 2 is the A-A place cutaway view among Fig. 1.Trend when the arrow that has dotted line among Fig. 1 is each parts installation.

The main body 3 of cable tube joint is a kind of column construction, inside is provided with through hole 303, two is the different cylinder that has outer rib-loop of diameter 301,302, wherein the diameter near one in electrical panel case, terminal box is little, be small cylinder 301, the other end is a large cylinder 302, and is middle for connecting the hexagon cylinder 304 of small cylinder 301 and large cylinder 302.Small cylinder 301 penetrates in the circular hole (not shown) of electrical panel case, terminal box respective diameters, sealing ring 2 is enclosed within the junction of small cylinder 301 and hexagon cylinder 304, play the water-tight effect, the main body 3 that the hold-down nut 1 with internal thread 101 is screwed into from electrical panel case, terminal box inside on the small cylinder 301 cable tube joint fixedly is connected with electrical panel case, terminal box.

Metal hose 402 backs that cable (not shown) puts cable hose snap ring 4 penetrate electrical panel case, terminal box inside from the interior bone 303 of the main body 3 of cable tube joint, the snap ring 401 of cable hose snap ring 4 snap in main body 3 large cylinder 302 inwall and metal hose 402 blocked, cap 5 with internal thread 501 and circular hole 502 is inserted in the outer end of metal hose 402 and screws in large cylinder 302, and cable hose snap ring 4 is fixed.

Existing cable tube joint device is a kind of closed device, can play the sealing protection effect.But in actual applications, because it is complicated that cable line is grown, moved towards, rainwater will enter cable tube inside inevitably, in electrical panel case, the lower occasion in terminal box position, rainwater will flow into electrical panel casees, terminal box inside along the metal hose 402 of cable hose snap ring 4, thereby causes electrical panel case, terminal box to make moist, insulate to reduce accidents caused.

The utility model content

The purpose of this utility model is in order to solve the problem that prior art exists, provide a kind of simple in structure, easy for installation, cost low and can prevent effectively that ponding from flowing to the cable tube joint of electrical panel case, terminal box inside.

The purpose of this utility model is achieved in that

A kind of cable tube joint, comprise with lower member: main body, inside are provided with the column construction of through hole, and two is the different cylinder that has outer rib-loop of diameter, and one that wherein is spirally connected with the electrical panel case is small cylinder, and the other end is a large cylinder; The cable hose snap ring places in the large cylinder of main body, is provided with metal hose that entangles cable and the snap ring that blocks metal hose; Cap with internal thread and circular hole is spirally connected with large cylinder, it is characterized in that being connected in series successively between described main body and the cable hose snap ring pretension sealing shroud and draining adapter ring, wherein:

Described pretension sealing is nested and is pressed in the inside of main body through hole, be the parts that cavity is arranged by the trumpet type that the rubber-like waterproof material is made, the osculum end of trumpet type places in the small cylinder, the big opening end of trumpet type is a torus, torus places in the large cylinder, and the inner end diameter of the osculum end of trumpet type can make cable penetrate less than the external diameter of cable and after bullet rises;

Described draining adapter ring is the cylindrical part that has cavity, is provided with several discharge outlet in radially different directions, and two is provided with gas thread, and wherein, one is the main body connector, and its gas thread is an internal thread, is spirally connected with the large cylinder of described main body; The other end is a cable hose snap ring joint, and its gas thread is an external screw thread, sets the cable hose snap ring in its pipe and is spirally connected with described cap.

The beneficial effects of the utility model:

Cable tube joint device of the present utility model, on the one hand when ponding when cable tube is flowed through the cable tube joint device, can prevent effectively that ponding from entering electrical panel case, terminal box automatically with the ponding eliminating of flowing through; On the other hand can electrical panel case, terminal box and cable pipeline is isolated, when the cable line breaking out of fire, can prevent effectively that kindling material from scurrying into electrical panel case, terminal box, thereby can significantly reduce the incident of the electrical equipment malfunction that causes therefrom.

In addition, cable tube joint of the present utility model is to have increased pretension sealing shroud and two parts of draining adapter ring on the basis of common cable pipe joint arrangement, and is simple in structure, easy for installation, cost is low.

For further specifying above-mentioned purpose of the present utility model, design feature and effect, the utility model is elaborated below with reference to accompanying drawing.

Description of drawings

Fig. 1 is the exploded view of existing cable tube joint;

Fig. 2 is the A-A place cutaway view among Fig. 1 and Fig. 3;

Fig. 3 is the exploded view of cable tube joint of the present utility model;

Fig. 4 is the B-B place cutaway view among Fig. 3;

Fig. 5 is the unit construction one figure of cable tube joint of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the embodiment of cable tube joint of the present utility model is elaborated.

Cable tube joint device of the present utility model is shown in Fig. 2-5, wherein: Fig. 3 is the exploded view of cable tube joint of the present utility model; Fig. 2 is the A-A place cutaway view among Fig. 3; Fig. 4 is the B-B place cutaway view among Fig. 3; Fig. 5 is the unit construction one figure of cable tube joint of the present utility model.Trend when the arrow that has dotted line among Fig. 3 is each parts installation.

Cable tube joint device of the present utility model is to have increased pretension sealing shroud 6 and draining adapter ring 7 on the basis of as shown in Figure 1 existing cable tube joint device, and pretension sealing shroud 6 and draining adapter ring 7 are serially connected between the main body 3 and cable hose snap ring 4 among Fig. 1 successively.

Be elaborated to this body structure of pretension sealing shroud 6 and draining adapter ring 7 and with the annexation of existing cable tube joint device below, and to this body structures of each parts of existing cable tube joint device owing in background technology, be described in detail, in this no longer repeat specification.

Pretension sealing shroud 6 is parts that a trumpet type has cavity 603, the osculum end 601 of trumpet type stretches in the through hole 303 of main body 3, be to place in the small cylinder 301, the big opening end of trumpet type be one with the internal diameter of large cylinder 302, the torus 604 that thickness is complementary, torus 604 is placed in the large cylinder 302, that is, the external diameter of torus 604 and thickness equal the internal diameter and the thickness of large cylinder 302, make 6 embeddings of pretension sealing shroud be pressed in whole through hole 303 inside of main body 3.The end of torus 604 also is provided with sealing gasket 602, and the external diameter of sealing gasket 602 makes sealing gasket 602 glands on the end of the large cylinder 302 of main body 3 greater than the external diameter of torus 604, prevents that rainwater from flowing into the inside of main body 3 from the outer wall of main body 3.Pretension sealing shroud 6 is made by the rubber-like waterproof material, and present embodiment is made with elastomeric material.The inner end diameter of the osculum end 601 of trumpet type is slightly less than the external diameter of cable, makes at the bullet back cable that rises to penetrate, and after cable penetrated in the osculum end 601 of trumpet type, the end of the osculum end 601 of the trumpet type of rubber material was with the cable tensioner.

Draining adapter ring 7 is for having the cylindrical part of cavity 703, be provided with several (present embodiment is 4 directions) discharge outlet 701 in radially different directions, two is provided with gas thread, wherein, one near pretension sealing shroud 6 is main body connector 702, the gas thread of main body connector 702 is an internal thread, and the external diameter coupling of the large cylinder 302 of its bore and main body 3 also is spirally connected; The other end is a cable hose snap ring joint 704, and the gas thread of cable hose snap ring joint 704 is an external screw thread, and snap ring 401 couplings of its bore and cable hose snap ring 4 are promptly set cable hose snap ring 4 in its pipe.

The internal thread of the main body connector 702 of described draining adapter ring 7 is connected with the external screw thread of the large cylinder 302 of main body 3, and pretension sealing shroud 6 is compressed; The external screw thread of the cable hose snap ring joint 704 of described draining adapter ring 7 is connected with the internal thread 501 of cap 5, and cable hose snap ring 4 is fixed.The major function of draining adapter ring 7 is rainwater of getting rid of on the metal hose 402 of cable hose snap ring 4, also is the switching part that connects main body 3 and attached cable flexible pipe snap ring 4 in addition.

Put the metal hose 402 of cable hose snap ring 4 when cable (not shown) after, from the through hole 303 of main body 3, penetrate the electrical panel case through pretension sealing shroud 6, terminal box (not shown) inside, because the inner end diameter of the osculum end 601 of trumpet type is slightly less than the external diameter of cable, after making cable penetrate in the osculum end 601 of trumpet type, the end of the osculum end 601 of the trumpet type of rubber material is with the cable tensioner, naturally form sealing ring, even above-mentioned draining adapter ring 7 does not drain the water on the cable, also has ponding on the cable, this sealing ring that forms naturally also can block this ponding, discharge from the discharge outlet 701 of draining adapter ring 7 then, ponding can not flowed in the electrical panel case.

Behind the metal hose 402 of cable hose clamp ring 4 on the cable joint-box, pretension sealing shroud 6 internal cavities 603 are interior in the interior thermal expansion type fire protection flame retarding clay (not shown) of filling with between cable and cavity inner wall, this fire protection flame retarding clay is met at cable and is expanded when fire heats up, thereby the cavity of the pretension sealing shroud 6 of tensioner rubber material, prevent that kindling material from scurrying in electrical panel case, the terminal box, play the effect of isolated kindling material.

Use cable tube joint of the present utility model, prevent that cable tube ponding and kindling material from entering inside electric appliance, thereby can significantly reduce the incident of the electrical equipment malfunction that causes therefrom.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.

Claims

1, a kind of cable tube joint, comprise with lower member: main body (3), inside is provided with the column construction of through hole (303), and two is the different cylinder that has outer rib-loop of diameter, one that wherein is spirally connected with the electrical panel case is small cylinder (301), and the other end is large cylinder (302); Cable hose snap ring (4) places in the large cylinder (302) of main body (3), is provided with metal hose (402) that entangles cable and the snap ring (401) that blocks metal hose (402); Cap (5) with internal thread (501) and circular hole (502) is spirally connected with large cylinder (302), it is characterized in that being connected in series successively between described main body (3) and the cable hose snap ring (4) pretension sealing shroud (6) and draining adapter ring (7), wherein:

Described pretension sealing shroud (6) embedding is pressed in the inside of main body (3) through hole (303), be the parts that cavity (603) are arranged by the trumpet type that the rubber-like waterproof material is made, the osculum end (601) of trumpet type places in the small cylinder (301), the big opening end of trumpet type is a torus (604), torus (604) places in the large cylinder (302), and the inner end diameter of the osculum end 601 of trumpet type can make cable penetrate less than the external diameter of cable and after bullet rises;

Described draining adapter ring (7) is provided with several discharge outlet (701) for having the cylindrical part of cavity (703) in radially different directions, and two is provided with gas thread, wherein, one is main body connector (702), and its gas thread is an internal thread, is spirally connected with the large cylinder (302) of described main body (3); The other end is a cable hose snap ring joint (704), and its gas thread is an external screw thread, sets cable hose snap ring 4 in its pipe and is spirally connected with described cap (5).

2, cable tube joint as claimed in claim 1 is characterized in that:

The end of the torus (604) of described pretension sealing shroud (6) is provided with sealing gasket (602).

3, cable tube joint as claimed in claim 1 is characterized in that:

Described rubber-like waterproof material is a rubber.

4, cable tube joint as claimed in claim 1 is characterized in that:

In the cavity (603) of described pretension sealing shroud (6), between cable and cavity inner wall, fill with thermal expansion type fire protection flame retarding clay.