CN2546630Y

CN2546630Y - Gun body connector on perforating gun

Info

Publication number: CN2546630Y
Application number: CN 02202715
Authority: CN
Inventors: 许自强
Original assignee: 刘龙江
Priority date: 2002-01-28
Filing date: 2002-01-28
Publication date: 2003-04-23
Anticipated expiration: 2012-01-28

Abstract

The utility model is a connecting device of a gun body for a perforating gun, comprising a gun body, a gun head, a gun rear, an upper connecting head and a lower connecting head. The utility model is characterized in that a annular groove which is convex downwards is arranged on the connecting end of the lower connecting head; 2 to 3 screws are arranged on both ends of the upper connecting head; the screws are positioned on the upper side of the annular groove after the upper connecting head is connected with the lower connecting head; a fastening bolt is threaded through the screw and is inserted into the annular groove; besides, a spring clip ring is arranged on the outside of the top end of the bolt which is on the same circle with the clip ring and is clamped inside the spring clip ring. Compared with the device in prior art, the utility model has the advantages of simple structure, convenient use, reliable and fixed connection and low machining cost.

Description

Body of a gun linkage on a kind of perforating gun

The utility model is a kind of body of a gun linkage that is used on the perforating gun, and perforating gun is the equipment special that the frequent a kind of perforation that uses is used in the oil well, and it relates to the raising on structural improvement of existing apparatus and the performance.

Perforating gun is a kind of equipment special that often needs use in oil development is produced, and its effect is to penetrate some oil outlets around oil well, and the body of a gun is the parts of a kind of special use on the perforating gun.Usually, connecting up and down of the body of a gun is to rely on top connection to be connected the rifle head and the gun breech at two ends with lower contact.Yet the upper and lower joint that the connection body of a gun is used takes place loosening after long-term the use sometimes, causes to come off, and this thing happens when acting on industry, and the body of a gun will fall within the down-hole, impacts and loses to operation, directly influences the benefit of perforation.So, guarantee to connect, just must improve the structure of upper and lower joint, improve the reliability of its connection.

The purpose of this utility model designs the body of a gun linkage on the perforating gun that a kind of new structure is provided just at the problems referred to above, it is simple in structure, and is easy to use, connect reliably firmly, and processing cost is low.

The purpose of this utility model realizes by following measure:

Body of a gun linkage on this kind perforating gun, it comprises assemblies such as the body of a gun, rifle head, gun breech, top connection and lower contact, its structural design features is, on the link of lower contact, be processed with recessed endless groove, be processed with 2-3 screw at the two ends of top connection, top connection is with after lower contact is connected, screw is in the top of endless groove, trip bolt passes screw and is inserted in the endless groove, in addition, a spring collar is installed in the outside, top at screw, and the screw that it will be on the same circumference clamps within it.

The drawing of accompanying drawing is described as follows:

Fig. 1 is an overall structure schematic diagram of the present utility model

Below with reference to drawings and Examples the utility model is further described:

Shown in accompanying drawing 1, body of a gun linkage on this kind perforating gun, it comprises the body of a gun 1, rifle head 2, gun breech 3, assemblies such as top connection 4 and lower contact 5, its structural design features is, the endless groove 6 of 8 a recessed * 10mm of processing on the link of lower contact 5, be processed with the screw 7 of 2-3 M10 at the two ends of top connection 4, top connection 4 is with after lower contact 5 is connected, screw 7 is in the top of endless groove 6, passing screw 7 with trip bolt 8 again is inserted in the endless groove 6 and holds out against, the termination of screw 8 is held out against in endless groove 6, in addition, fastening in order to ensure screw 7 makes it can not become flexible, the spring collar 9 of one Φ 2 is installed in the outside, top of screw 7, and the screw 7 that it will be on the same circumference clamps within it.In use, this kind device can guarantee that becoming flexible can not appear in upper and lower respectively being threaded of connecing, and has prevented to take place in the operation process accident that the body of a gun comes off.

The utility model compare with present device have simple in structure, easy to use, being connected can By the advantage firm, that processing cost is low.

Claims

1. the body of a gun linkage on the perforating gun, it comprises the body of a gun (1), rifle head (2), gun breech (3), top connection (4) and lower contact assemblies such as (5), it is characterized in that: on the link of lower contact (5), be processed with recessed endless groove (6), be processed with 2-3 screw (7) at the two ends of top connection (4), top connection (4) is with after lower contact (5) is connected, screw (7) is in the top of endless groove (6), trip bolt (8) passes screw (7) and is inserted in the endless groove (6), in addition, a spring collar (9) is installed in the outside, top at screw (8), and the screw (7) that it will be on the same circumference clamps within it.