CN2353072Y

CN2353072Y - Cable-end sealing arrangement on oil pipe-end

Info

Publication number: CN2353072Y
Application number: CN 98241890
Authority: CN
Inventors: 薛宏生; 邵金海
Original assignee: JINHU MACHINERY FACTORY
Current assignee: JINHU MACHINERY FACTORY
Priority date: 1998-11-02
Filing date: 1998-11-02
Publication date: 1999-12-08
Anticipated expiration: 2008-11-02

Abstract

The utility model relates to a cable-end sealing arrangement, particularly a cable-end sealing arrangement on an oil pipe-end. The utility model is mainly composed of a sealing shell, an upper and a lower flat washers, a first sealing piece, a second sealing piece, a third sealing piece and a press cap, wherein, the upper flat washer, the first sealing piece, the second sealing piece, the third sealing piece and the lower flat washer are arranged in the middle hole of three stepped inner holes on the sealing shell orderly, the first sealing piece is provided with three uniformly provided holes with notches, the second sealing piece is provided with a notch and an arc-shaped groove provided with a triangle end, and the third sealing piece is provided with three uniformly arranged arc-shaped notches. Therefore, the utility model has simple structure, high sealing safety and easy installation.

Description

Cable sealing device on the tubing head

The utility model relates to a kind of cable sealing device, especially instigates the cable sealing device that is used on the tubing head.

At present, the cable sealing device that uses on the oil pipe adopts split type or plug-in type, and wherein split type is that three cables are adopted three sealed stuffing box respectively, its seal structure complex, and it is big to take volume; Plug-in type is that import and the outlet at tubing head sealing position adds socket, will block cable when cable is installed, and inserts the socket in the seal assembly again, and during installation fee, hermetically-sealed construction is also complicated.

In view of this, the purpose of this utility model provides the cable sealing device on a kind of tubing head, and it is that dull and stereotyped rubber seal with three different structure shapes is one group, reach between three cables and and shell between isolation.

The purpose of this utility model is achieved in that it mainly is by can, on, following plain washer, first, second and third seal and pressure cap are formed, wherein have three ladder endoporus in the can, last plain washer, first, second, the 3rd seal and down plain washer be arranged in regular turn in the three ladder endoporus of can in the sector hole, pressure cap is screwed in the last sector hole of three ladder endoporus, three uniform band breach holes are set on first seal, a triangle end deep-slotted chip breaker and a breach are set on second seal, three uniform arc gaps are set on the 3rd seal.

The band breach hole of described first seal is communicated with neighboring edge.

An end circular arc of the triangle end deep-slotted chip breaker of described second seal is communicated with neighboring edge through breach.

Three arc gaps of described the 3rd seal are communicated with neighboring edge respectively.

Described first, second, third seal all is a rubber slab.

Described first, second, third seal is all several.

Owing to adopt such scheme: simple in structure because of dull and stereotyped rubber parts, but be easy to make three cables to separate and do not bump shell, sealingly secure is reliable, need not peel off protective layer when installing cable or block cable, and is easy for installation.Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model exemplary embodiments schematic diagram.

Fig. 2 the utility model exemplary embodiments first seal schematic perspective view.

Fig. 3 the utility model exemplary embodiments second seal schematic perspective view.

Fig. 4 the utility model exemplary embodiments the 3rd seal schematic perspective view.

Fig. 5 the utility model representative instance user mode figure.

Among the figure: 1, can, 11, three ladder endoporus, 2, go up plain washer, 3, plain washer down, 4, first seal, 41, band breach hole, 5, second seal, 51, triangle end deep-slotted chip breaker, 52, breach, 6, the 3rd seal, 61, arc gap, 7, pressure cap, 8, tubing head.

Present embodiment mainly comprises first, second and third seal 4,5 and 6, can 1, upper and lower plain washer 2,3 and pressure cap 7 compositions, shown in Fig. 1～4, wherein:

Can 1 is to have from top to bottom, and the metal valve jacket of three ladder endoporus 11 from large to small (going up sector hole is screwed hole) is screwed on tubing head 8 (shown in Fig. 1,5).

Following plain washer 3 (metal washer) is placed on sector hole bottom in the three ladder endoporus 11 of can 1, for the support seal effect.

First seal 4 is rubber flat plates that three uniform band breach holes 41 are set on it, and the breach in this band breach hole 41 is communicated with plate edge, inserts (inserting from breach) for three cables respectively, and three cables are isolated from each other.

Second seal 5 is rubber flat plates that a triangle end deep-slotted chip breaker 51 is set on it, this triangle end deep-slotted chip breaker 51 is three deep-slotted chip breakers that identical circular arc connects at symmetry dull and stereotyped (circle is dull and stereotyped) center, one of them circular arc connects contiguous plate edge with breach 52, insert from breach 52 for three cables, three cables are all separated with plate edge.

The 3rd seal 6 is that rubber slab and centre that three uniform arc gaps 61 are set on it have boss, and this arc gap 61 is communicated with close plate edge, separates the cable of three insertions.

More than first, second and third seal 4,5 and 6 be (being two groups of seals among Fig. 1) on the following plain washer 3 of sector hole in one group of three ladder endoporus 11 that are seated in can 1.

Last plain washer 2 (metal washer) is placed on the seal of sector hole in the three ladder endoporus 11 of can 1, and its top is exposed in the three ladder endoporus 11 above the sector hole (i.e. the bottom of sector hole on three ladder endoporus 11).

Pressure cap 7 is to have centre bore and externally threaded helical casing, is screwed to its external thread rotary on the three ladder endoporus 11 of can 1 and compresses plain washer 2 in the sector hole and with the bottom, makes seal (rubber) compacted.

Claims

1, cable sealing device on a kind of tubing head, it is characterized in that: it mainly is by can (1), on, following plain washer (2), (3), first, second and third seal (4), (5) reaching (6) and pressure cap (7) forms, wherein have three ladder endoporus (11) in the can (1), last plain washer (2), first, second, the 3rd seal (4), (5), (6) reaching down, plain washer (3) is arranged in the middle sector hole of three ladder endoporus (11) of can (1) in regular turn, pressure cap (7) is screwed in the last sector hole of three ladder endoporus (11), three uniform band breach holes (41) are set on first seal (4), a triangle end deep-slotted chip breaker (51) and a breach (52) are set on second seal (5), three uniform arc gaps (61) are set on the 3rd seal (6).

2, by the cable sealing device on the described tubing head of claim 1, it is characterized in that: the band breach hole (41) of described first seal (4) is communicated with neighboring edge.

3, by the cable sealing device on the described tubing head of claim 1, it is characterized in that: an end circular arc of the triangle end deep-slotted chip breaker (51) of described second seal (5) is communicated with neighboring edge through breach (52).

4, by the cable sealing device on the described tubing head of claim 1, it is characterized in that: three arc gaps (61) of described the 3rd seal (6) are communicated with neighboring edge respectively.

5, by the cable sealing device on the described tubing head of claim 1, it is characterized in that: described first, second, third seal (4), (5), (6) all are rubber slabs.

6, by the cable sealing device on the described tubing head of claim 1, it is characterized in that: described first, second, third seal (4), (5), (6) are all several.