CN211648061U

CN211648061U - Eight-bead fisher for drilling tool

Info

Publication number: CN211648061U
Application number: CN202020226127.6U
Authority: CN
Inventors: 史占丰; 刘兆营
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-10-09
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses an eight pearl fisher of drilling tool, including link, middle festival and wide-mouth festival, the lower extreme threaded connection middle festival's of link upper end, the lower extreme threaded connection wide-mouth festival's of middle festival upper end, and the axis of link, middle festival and wide-mouth festival is coaxial, the interior lower extreme inner tube of wide-mouth festival is horn type structure, the lower extreme outer wall integrated into one piece of middle festival has the extension platform, the extension platform up end is seted up a plurality of evenly distributed ball section, and ball section runs through to the inner wall of middle festival, the axis of ball section becomes 7.5 contained angles with the axis of middle festival, ball section upper end spiral shell dress shrouding; through the addition of wide-mouth festival for cracked drilling tool is caught more easily, and the centre gripping through the outside simultaneously is fastened, has avoided the deckle edge problem of cracked drilling tool, and through the removal orbit of the 7.5 of locking pearl, makes to be suitable for many diameter drilling tools, also makes to press from both sides tight pulling force bigger, and locking pulling force is bigger.

Description

Eight-bead fisher for drilling tool

Technical Field

The utility model relates to a fisher technical field specifically is an eight pearl fishers of drilling tool.

Background

Drilling tool fisher is the device that salvages the drilling tool, the drilling tool is in the use, because fatigue damage, the mar harm, the pulling force exceeds reasons such as rated tension, make the drilling tool fracture in the pit, cause the accident, current fisher is mostly the screw tap and salvages, the centre gripping is salvaged, this kind of fisher is when the hole is great, the location difficulty, and cracked edge is mostly burr thread, make the screw tap screw thread carry out the screw thread very slowly, centre gripping is salvaged and the screw tap is salvaged and all has the insecure problem of connection simultaneously, we provide a drilling tool eight pearl fisher for this reason.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an eight pearl fishers of drilling tool, technical scheme as follows:

the utility model provides an eight pearl fishers of drilling tool, includes link, middle festival and wide-mouth festival, the upper end of the lower extreme threaded connection middle festival of link, the upper end of the lower extreme threaded connection wide-mouth festival of middle festival, and the axis of link, middle festival and wide-mouth festival is coaxial, the interior lower extreme inner tube of wide-mouth festival is horn type structure, the lower extreme outer wall integrated into one piece of middle festival has the extension platform, a plurality of evenly distributed's a ball section of thick bamboo is seted up to the extension bench up end, and a ball section of thick bamboo runs through to the inner wall of middle festival, the axis of a ball section of thick bamboo becomes 7.5 contained angles with the axis of middle festival, ball section of thick bamboo upper end spiral shell dress shrouding, the roll-mounting has the locking pearl in the ball section of thick bamboo, it has the spring to press from both.

Preferably, the number of the ball barrels is eight, the lower end of each ball barrel is of a semi-open structure, and the diameters of the locking balls are the same as the diameter of each ball barrel.

Preferably, the outer wall integrated into one piece of connecting node has a spacing flange, and the diameter of spacing flange is less than the minimum external diameter of middle festival, the inner wall upper end integrated into one piece of wide-mouth festival has the fender position ring, the internal diameter of fender position ring is the same with the internal diameter of middle festival.

Preferably, the inner wall of the upper end of the connecting joint is provided with connecting threads, and a necking is formed on the inner wall of the connecting joint corresponding to the position of the limiting flange.

Preferably, the ball cylinder starts from the upper table of the extension table and extends to the lower end edge of the middle cylinder.

The utility model has the advantages that:

through the addition of wide-mouth festival for cracked drilling tool is caught more easily, and the centre gripping through the outside simultaneously is fastened, has avoided the deckle edge problem of cracked drilling tool, and through the removal orbit of the 7.5 of locking pearl, makes to be suitable for many diameter drilling tools, also makes to press from both sides tight pulling force bigger, and locking pulling force is bigger.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the front half-section structure of the present invention;

FIG. 3 is a left side view of the structure of the present invention;

the device comprises a connecting joint 1, a middle joint 2, a ball cylinder 3, a ball cylinder 4, a sealing plate 5, a spring 6, a locking ball 7, a wide-mouth joint 8 and an extension table.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.

As shown in fig. 1-3, the eight-ball fisher for drilling tools comprises a connecting joint 1, a middle joint 2 and a wide-mouth joint 7, which is a basic connecting structure of the fisher, the lower end of the connecting joint 1 is in threaded connection with the upper end of the middle joint 2, the lower end of the middle joint 2 is in threaded connection with the upper end of the wide-mouth joint 7, the axes of the connecting joint 1, the middle joint 2 and the wide-mouth joint 7 are coaxial, so that the overall basic connection of the fisher is realized, meanwhile, structural support is provided for subsequent use through coaxial control, an inner cylinder at the inner lower end of the wide-mouth joint 7 is of a horn-shaped structure, so that a broken drilling tool can be conveniently captured and guided in, an extension table 8 is integrally formed on the outer wall of the lower end of the middle joint 2, so that a space thickness support is provided for the arrangement of the ball cylinder 3, a plurality of ball cylinders 3 which are uniformly distributed are arranged on the upper end surface, the station of injecing is provided for inside spring 5 and locking pearl 6, the axis of ball section of thick bamboo 3 becomes 7.5 contained angles with the axis of middle section 2, and suitable structure that can be better reaches and provides better extrusion force for spring 5's effective promotion, 3 upper end spiral shell dress shrouding 4 of ball section of thick bamboo provide spacingly for spring 5, roll in the ball section of thick bamboo 3 and install locking pearl 6, through the change of position for the diameter of the circle of 6 inscribes of locking pearl changes, realizes the locking function then, it has spring 5 to press from both sides between shrouding 4 and locking pearl 6, provides power for the locking that resets of locking pearl 6.

Particularly, 3 quantity of ball section of thick bamboo are eight, can make locking pearl 6 evenly distributed around the section of thick bamboo wall of festival 2 in the middle of, guarantee the even of cohesion, the lower extreme of ball section of thick bamboo 3 is semi-open structure for locking pearl 6 can the equipartition roll-off 2 in the middle of the inner wall of festival, realize the locking cohesion to fracture drilling tool outer wall, the diameter of locking pearl 6 is the same for the diameter of ball section of thick bamboo 3, avoids rocking the influence locking.

Particularly, the outer wall integrated into one piece of connecting link 1 has limit flange, and limit flange's diameter is less than the minimum external diameter of middle section 2, prescribes a limit to the cooperation distance of combination institute in-process, avoids influencing the effective working length of middle section 2, the inner wall upper end integrated into one piece of wide-mouth section 7 has the fender position ring, the internal diameter of fender position ring is the same with the internal diameter of middle section 2, prescribes a limit to the accessory interval of middle section 2 and wide-mouth section 7, makes the drilling tool of catching can get into in the middle section 2 smoothly simultaneously.

Particularly, connecting thread has been seted up to the upper end inner wall of link 1, the inner wall of link 1 corresponds the forming of spacing flange position and has the necking down, conveniently is connected with the rig.

The ball barrel 3 is started from the upper table surface of the extension table 8 and extends to the lower end edge of the middle barrel.

The working principle is as follows: the utility model discloses during the use, connect the link 1 through the drilling rod, drive whole device rotation then and impel downwards, wide-mouth festival 7 is caught cracked drilling tool, then section 2 in the middle of the slip-in, simultaneously under initial condition, locking pearl 6 is under spring 5's extrusion, be in ball section 3 the lower extreme, when cracked drilling tool slips in section 2 in the middle, promote locking pearl 6 upwards to slide in ball section 3, so that in locking pearl 6 retracts ball section 3 completely, when the diameter of eight locking pearl 6 inscribed circles is greater than the drilling tool external diameter, complete suit fracture drilling tool, locking pearl 6 roll-off under spring 5's effect this moment, lock the drilling tool surface, pass through the drilling rod with the rig simultaneously and pull back the utility model discloses, under the pulling force effect, the drilling tool surface drives locking pearl 6 extrusion down, the pulling force is big, locking force is big more, realize salvaging.

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 an eight pearl fishers of drilling tool, includes connecting link, middle festival and wide-mouth festival, its characterized in that: the upper end of festival in the middle of the lower extreme threaded connection of link, the upper end of the lower extreme threaded connection wide-mouth festival of festival in the middle, and the axis of link, middle festival and wide-mouth festival is coaxial, the interior lower extreme inner tube of wide-mouth festival is horn type structure, the lower extreme outer wall integrated into one piece of middle festival has the extension platform, a plurality of evenly distributed's a ball section of thick bamboo is seted up to extension bench up end, and a ball section of thick bamboo runs through the inner wall to middle festival, the axis of a ball section of thick bamboo becomes 7.5 contained angles with the axis of middle festival, ball section of thick bamboo upper end spiral shell dress shrouding, roll in the ball section of thick bamboo and install the locking pearl, it has the spring to press from both sides between shroudin.

2. The eight-bead fisher of the drilling tool according to claim 1, wherein: the number of the ball cylinders is eight, the lower end of each ball cylinder is of a semi-open structure, and the diameters of the locking balls are the same as those of the ball cylinders.

3. The eight-bead fisher of the drilling tool according to claim 1, wherein: the outer wall integrated into one piece of coupling joint has a limit flange, and limit flange's diameter is less than the minimum external diameter of middle festival, the inner wall upper end integrated into one piece of wide-mouth festival has the fender position ring, the internal diameter of fender position ring is the same with the internal diameter of middle festival.

4. The eight-bead fisher of the drilling tool according to claim 1, wherein: connecting threads are formed in the inner wall of the upper end of the connecting joint, and a necking is formed in the position, corresponding to the limiting flange, of the inner wall of the connecting joint.

5. The eight-bead fisher of the drilling tool according to claim 1, wherein: the ball cylinder is started by the upper table surface of the extension table and extends to the lower end edge of the middle cylinder.