CN213125558U

CN213125558U - Double-layer cutting ferrule type cable sealing joint

Info

Publication number: CN213125558U
Application number: CN202022183566.6U
Authority: CN
Inventors: 黄鹏; 王爱国; 刘小旺
Original assignee: Hebei Zhongqing Yongsheng Petroleum Technology Co ltd
Current assignee: Hebei Zhongqing Yongsheng Petroleum Technology Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-05-04
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a double-layer cutting ferrule type cable sealing joint, which comprises a joint body, wherein an O-shaped ring is sleeved in a sealing groove at the lower end of the joint body, a layer of front cutting ferrule is arranged in a conical surface at the upper end of the joint body, and a layer of rear cutting ferrule is arranged in a conical surface at the upper part of the layer of front cutting ferrule; the outer side of the upper part of the joint body is in threaded sleeve connection with a clamping sleeve, the inner end surface of the clamping sleeve is in press connection with the upper end surface of the first layer of rear clamping sleeve, two layers of front clamping sleeves are placed in the conical surfaces of the upper parts of the clamping sleeve barrels, and two layers of rear clamping sleeves are placed in the conical surfaces of the upper parts of the two layers of front clamping sleeves; the outer side of the upper part of the clamping sleeve is in threaded sleeve connection with a nut, and the inner end face of the nut is in compression connection with the upper end face of the two-layer rear clamping sleeve. The cable is more firmly connected underground through the double-layer clamping sleeve, the pressure resistance is higher, the sealing performance is better, and the working is safe and reliable; even if one layer of the clamping sleeve leaks, the second layer of the clamping sleeve also plays a role in sealing, the whole device is simple, compact and reliable in structure, and equipment can work in a high-temperature and high-pressure environment underground for a long time.

Description

Double-layer cutting ferrule type cable sealing joint

Technical Field

The utility model relates to an oil field cable sealing connection technical field in pit specifically is a double-deck cutting ferrule formula cable sealing joint.

Background

The existing cutting ferrule joints are all suitable for sealing connection of pipe fittings, and because the pipe fittings have high strength and are not easy to bend, a single-layer cutting ferrule is enough for sealing connection; because the cable is low in strength and can be bent, the single-layer ferrule joint cannot achieve safe and reliable sealing performance; therefore, the sealing connector is required to be developed and applied to the underground cable sealing connector of the oil field, and sealing guarantee is provided for the cable soaked in water or oil for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double-layer cutting sleeve type cable sealing joint, wherein the double-layer cutting sleeve enables the cable to be connected more firmly in the underground, the pressure resistance is higher, the sealing performance is better, and the working safety is more reliable; even one layer cutting ferrule seepage also has the second layer cutting ferrule to play sealed effect, even equipment, cable receive vibrations or crooked can play sealed effect in the pit, the device simple structure, compactness, reliable simultaneously can make equipment work in the high temperature high pressure environment in the pit for a long time to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a double-layer ferrule type cable sealing joint comprises a joint body, wherein an O-shaped ring is sleeved in a sealing groove at the lower end of the joint body, and a layer of front ferrule is arranged in a conical surface at the upper end of the joint body; a layer of rear cutting sleeve is placed in the conical surface at the upper part of the layer of front cutting sleeve; the outer side of the upper part of the joint body is in threaded sleeve connection with a clamping sleeve, and the inner end surface of the clamping sleeve is in pressure connection with the upper end surface of a layer of rear clamping sleeve; two layers of front clamping sleeves are placed in the conical surfaces at the upper parts of the clamping sleeves, and two layers of rear clamping sleeves are placed in the conical surfaces at the upper parts of the two layers of front clamping sleeves; the outer side of the upper part of the clamping sleeve is in threaded sleeve connection with a nut, and the inner end face of the nut is in compression connection with the upper end face of the two-layer rear clamping sleeve.

Preferably, threading holes are reserved on the axial lines of the joint body, the clamping sleeve and the nut.

Preferably, the end of the joint body is fixedly connected to the corresponding equipment through threads.

Preferably, an O-shaped ring is arranged at the joint of the clamping sleeve and the joint body.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the double-layer ferrule type cable sealing joint can provide good sealing performance for cables and can also play a role in fixing cable ends; the double-layer clamping sleeve enables the cable to be connected more firmly in the underground, the pressure resistance is higher, the sealing performance is better, and the working is safe and reliable; even one layer of cutting ferrule seepage also has the second layer of cutting ferrule to play sealed effect, even equipment or cable receive vibrations or crooked can play sealed effect in the pit, whole device has simple structure, compactness, simple installation moreover, sealed characteristics such as reliable, has guaranteed equipment reliable operation under the high temperature high pressure liquid environment in the pit for a long time.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a fitting body; 2. a layer of front ferrule; 3. a layer of rear ferrule; 4. a sleeve is clamped; 5. two layers of front clamping sleeves; 6. two layers of rear cutting sleeves; 7. a nut; 8. and an O-shaped ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the double-layer ferrule type cable sealing joint comprises a joint body 1, wherein an O-ring 8 is sleeved in a sealing groove at the lower end of the joint body 1, and a layer of front ferrule 2 is arranged in a conical surface at the upper end of the joint body 1; a layer of rear cutting sleeve 3 is placed in the conical surface at the upper part of the layer of front cutting sleeve 2; the outer side of the upper part of the joint body 1 is in threaded sleeve connection with a clamping sleeve 4, and the inner end surface of the clamping sleeve 4 is in pressure connection with the upper end surface of a layer of rear clamping sleeve 3 (without being screwed); a two-layer front cutting sleeve 5 is arranged in the conical surface at the upper part of the cutting sleeve 4, and a two-layer rear cutting sleeve 6 is arranged in the conical surface at the upper part of the two-layer front cutting sleeve 5; the outer side of the upper part of the clamping sleeve 4 is sleeved with a nut 7 in a threaded manner, and the inner end surface of the nut 7 is pressed on the upper end surface of the two-layer rear clamping sleeve 6 (tightly screwed).

In the above embodiment, the joint body 1, the ferrule barrel 4 and the nut 7 are provided with threading holes on the axial lines.

In the above embodiment, the end of the coupling body 1 is fixedly connected to the corresponding equipment by means of screw threads.

In the above embodiment, the joint of the ferrule barrel 4 and the connector body 1 is provided with the O-ring 8.

The working principle is as follows: when the double-layer ferrule type cable sealing joint is used on site, a cable is inserted through the central hole at the upper end of the nut 7 and penetrates out from the lower end through the central hole of the joint body 1, and the cable is inserted into equipment; then, the connector body 1 is fixed on equipment through threaded connection, external sealing is carried out through an O-shaped ring 8, then the clamping sleeve 4 is rotated to enable the outer side of the front end of the front clamping sleeve 2 to be attached to the conical surface of the connector body 1, and the inner edge is uniformly cut into the cable shell to form first effective sealing; then the nut 7 is rotated to ensure that the outer side of the front end of the two-layer front cutting sleeve 5 is attached to the conical surface of the cutting sleeve barrel 4, and the inner edge is uniformly cut into the cable shell to form a second effective seal; therefore, the cable is safer and more reliable under the protection of double sealing.

In summary, the following steps: the double-layer ferrule type cable sealing joint can provide good sealing performance for cables and can also play a role in fixing cable ends; the double-layer clamping sleeve enables the cable to be connected more firmly in the underground, the pressure resistance is higher, the sealing performance is better, and the working is safe and reliable; even one layer of cutting ferrule seepage also has the second layer of cutting ferrule to play sealed effect, even equipment or cable receive vibrations or crooked can play sealed effect in the pit, whole device has simple structure, compactness, simple installation moreover, sealed characteristics such as reliable, has guaranteed equipment reliable operation under the high temperature high pressure liquid environment in the pit for a long time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a double-deck cutting ferrule formula cable sealing joint, includes joint body (1), its characterized in that: an O-shaped ring (8) is sleeved in a sealing groove at the lower end of the joint body (1), and a front clamping sleeve (2) is arranged in a conical surface at the upper end of the joint body (1); a layer of rear cutting sleeve (3) is placed in the conical surface at the upper part of the layer of front cutting sleeve (2); the outer side of the upper part of the joint body (1) is in threaded sleeve connection with a clamping sleeve (4), and the inner end surface of the clamping sleeve (4) is in compression joint with the upper end surface of a layer of rear clamping sleeve (3); a two-layer front cutting sleeve (5) is arranged in the conical surface at the upper part of the cutting sleeve (4), and a two-layer rear cutting sleeve (6) is arranged in the conical surface at the upper part of the two-layer front cutting sleeve (5); the outer side of the upper part of the clamping sleeve (4) is in threaded sleeve connection with a nut (7), and the inner end face of the nut (7) is in compression connection with the upper end face of the two-layer rear clamping sleeve (6).

2. The double-layer ferrule-type cable sealing joint of claim 1, wherein: and threading holes are reserved on the axial center lines of the joint body (1), the clamping sleeve (4) and the nut (7).

3. The double-layer ferrule-type cable sealing joint of claim 1, wherein: the end part of the joint body (1) is fixedly connected to corresponding equipment through threads.

4. The double-layer ferrule-type cable sealing joint of claim 1, wherein: and an O-shaped ring (8) is arranged at the joint of the clamping sleeve (4) and the joint body (1).