CN115492534B - Quick-connection structure of geological exploration drilling rod - Google Patents

Abstract

The invention discloses a quick-connection structure of a geological exploration drilling rod, which comprises a drilling rod main body and an elastic supporting component, wherein a rod sleeve is arranged at one end of the drilling rod main body, a rod insert is arranged at the other end of the drilling rod main body, the rod insert comprises an insert main body, an insert inner ring groove and an insert baffle, the insert baffle is arranged at the outer side of the insert main body, the lower end part of the insert baffle is an inserting end, an insert inner ring groove is arranged in the middle of the inserting end, the rod sleeve comprises a sleeve main body and an outer ring groove, the outer ring groove is arranged in the middle of the sleeve main body, after the sleeve is sleeved, the insert inner ring groove corresponds to the outer ring groove in position and is combined to form an annular accommodating area, the elastic supporting component is sleeved in the annular accommodating area, and a rotation constraint mechanism is arranged between the rod sleeve and the rod insert. According to the invention, the upper and lower drilling rods are directly sleeved to realize one-step fixed connection, the connected upper and lower drilling rods have a high-strength axial constraint relationship and a torsion constraint relationship, the disassembly is very convenient, and the one-step disassembly can be realized.

Description

Quick-connection structure of geological exploration drilling rod

Technical Field

The invention belongs to the technical field of geological exploration drilling tool equipment, and particularly relates to a quick connection structure of a geological exploration drilling rod.

Background

In the geological exploration or geotechnical foundation engineering construction process, a hollow geological drilling machine is often needed, the existing geological drilling machine is limited in tower height, particularly, the height limit of some construction sites can be only below 10m, and a drill rod connecting method is needed to be adopted if deep piles exceeding ten meters are needed to be processed. When the underground rock core is sampled through the drill rods connected end to end, most of the existing head-to-end connection modes of the drill rods are fixed in a threaded screwing mode, the connection requirement between two adjacent drill rods can be effectively improved, but the situation that sliding wires are easy to slide in the practical application process and the installation working efficiency is low is caused by gradual screwing, almost all existing drill rod connection modes are screw connection modes, and the defects are that: the on-site drill rod butt joint is difficult, and particularly when the rod diameter is large, the labor intensity is high, the time and the labor are wasted in the butt joint process, and the efficiency is low, so that the construction cost is high. The same is true when the drill rod is lifted for disassembly.

In addition, for different geological conditions, different types of adaptive drilling tools are often used, such as underground coal mine gas extraction, oil extraction and geological exploration, deep underground rock sampling is mainly realized through drilling of drill rods, and in the normal drilling process, every two drill rods are connected through male and female bolts or conical threads.

In the prior art, the conventional outer flat round drill rod for coal mine tunnel drilling is connected in a taper thread mode, and phenomena of thread locking, drill rod sliding buckle and male thread twisting off caused by expansion of a drill rod female joint and the like often occur in the using process due to mechanical fatigue and production process reasons, so that the drill rod and the drill bit are damaged, lost and repeatedly constructed, and drilling materials and construction cost are seriously wasted. Because of the limitation of drill rod structural design, the drill rod needs to be disassembled and replaced manually by using a wrench when the drill rod is used, and time and labor are wasted.

In order to solve the technical problems, it is first needed to provide a connection structure capable of improving the quick butt joint between two drill rods, and at the same time, the whole drilling system is improved in a targeted manner for a new quick connection structure.

Disclosure of Invention

Aiming at the problems that the prior drilling rod is formed by combining multiple sections in a butt joint way, multiple persons need to repeatedly screw and twist under the hoisting condition to finish all the sections together through threaded connection, and time and labor are wasted, the invention provides a quick connecting structure of a geological exploration drilling rod, which does not need to manually and repeatedly screw and twist, and realizes one-step butt joint fixation.

The invention solves the technical problems by adopting the scheme that: the utility model provides a quick structure of tying of geological prospecting drilling rod, includes hollow drilling rod main part and elastic support subassembly, is located drilling rod main part one end and has the pole external member, and the other end has the pole plug-in components, the pole plug-in components include hollow plug-in components main part, plug-in components inner ring recess and plug-in components fender platform, wherein, the plug-in components main part outside has the plug-in components fender platform, and plug-in components fender platform lower extreme part is the grafting end, and the middle part of this grafting end has plug-in components inner ring recess, the pole sleeve components include external ring recess and external ring recess, cup joint the back, plug-in components inner ring recess correspond with external ring recess position, and the combination forms annular accommodation area, elastic support subassembly include jack-up and annular connecting band, this annular connecting band establish ties a plurality of jack-up in the annular accommodation area, set up fixed rotation restraint mechanism or set up movable mounting's rotation restraint mechanism between pole external member and the pole plug-in.

The fixed rotation constraint mechanism comprises a plug-in convex-concave caulking groove arranged on the outer side of a rod plug-in, a sleeve member convex-concave caulking groove arranged in an inner cavity of the rod plug-in, a plug-in baffle table is arranged on the outer side of a plug-in main body of the rod plug-in, a plug-in end is arranged at the lower end of the plug-in baffle table, an inner ring groove is arranged in the middle of the plug-in end, a plug-in convex-concave caulking groove is arranged on the outer side of the plug-in end, an outer ring groove is arranged in the middle of a sleeve member main body of the rod sleeve member, a sleeve member convex-concave caulking groove is arranged on the inner wall of the sleeve member main body, and the plug-in convex-concave caulking groove can be matched and sleeved with the sleeve member convex-concave caulking groove.

The diameter of the jack posts is greater than the depth of the inner ring groove of the plug-in unit, but not greater than the depth of the outer ring groove of the sleeve member, so that when the jack posts are positioned on the inner side of the inner ring groove of the plug-in unit, one half of the jack posts are positioned in the inner ring groove of the plug-in unit, the other half of the jack posts are positioned in the outer ring groove of the sleeve member, the rod sleeve member and the rod sleeve member can be firmly and axially locked together, but when all the jack posts are positioned on the inner side of the outer ring groove of the sleeve member at the same time, the axial locking of the rod sleeve member and the rod sleeve member can be released.

The annular connecting belt is an elastic convergence annular connecting belt, the whole annular connecting belt is an unsealed annular shape, namely, two ends of the connecting belt are provided with two free ends, the elastic convergence annular connecting belt is elastic and is in an inward convergence shape, a plurality of jacking posts are fixed at the middle part and the two ends of the elastic convergence annular connecting belt at equal intervals, and under the elastic action of the connecting belt, the jacking posts are respectively in a convergence shape, so that the elastic convergence annular connecting belt and the jacking posts are sleeved in the inner annular groove of the plug-in unit in an inward contraction manner in a natural state after assembly.

The combined ring-shaped tool comprises a starting tool, wherein the starting tool is formed by buckling two semicircular ring sleeves, the end parts of each ring sleeve are respectively connected with a handle, the two end parts are hinged together through a pin shaft, so that when the handles on the two sides are pressed, the two ring sleeves can be driven to be unfolded or closed, meanwhile, electromagnets are respectively fixed in the caulking grooves of the concave cambered surfaces of the two ring sleeves, the electromagnets on the two sides are connected with a power supply through a switch, and the switch is positioned on the handle part. When the starting tool is used, the two annular sleeves of the starting tool are unfolded and then are encircling the outer side of the annular accommodating area, the pressing switch starts the electromagnet, the electromagnet is a strong magnet, and the plurality of jacking posts on the inner side of the annular accommodating area can be attracted, so that the jacking posts expand outwards and respectively enter the inner side of the outer annular groove of the sleeve, and the locking of the rod sleeve and the rod insert can be released. But in a natural state, the jack posts are positioned inside the inner ring grooves of the plug-in units, so that the rod sleeve and the rod plug-in units can be firmly locked together.

The elastic supporting component is characterized in that a plurality of jacking posts are sequentially connected in series on the outer side of the same elastic convergence circular ring connecting belt, two ends of the elastic convergence circular ring connecting belt are respectively provided with a baffle, through holes are respectively formed in the jacking posts, the jacking posts are respectively sleeved on the outer side of the elastic convergence circular ring connecting belt and can slide relatively, and balance springs are sleeved on the outer side of the belt between every two adjacent jacking posts, so that the jacking posts are kept at equal intervals under the action of the corresponding springs.

The elastic supporting component comprises a plurality of jacking posts and two elastic convergence semi-ring connecting bands, the middle part of each elastic convergence semi-ring connecting band is fixed with the corresponding jacking post, one end of each elastic convergence semi-ring connecting band is fixed with an end penetrating post, the other end of each elastic convergence semi-ring connecting band is a penetrating free end, the middle part of each end penetrating post comprises a penetrating hole and allows the penetrating free end of the other connecting band to penetrate through, the two elastic convergence semi-ring connecting bands are in head-to-tail butt joint, namely the penetrating free end of one elastic convergence semi-ring connecting band is sleeved in the penetrating post of the other elastic convergence semi-ring connecting band, and therefore the ends of the two connecting bands can freely stretch.

The elastic supporting component comprises a plurality of jacking posts and two elastic convergence semi-ring connecting bands, each elastic convergence semi-ring connecting band is fixed with the jacking posts respectively, one end of each elastic convergence semi-ring connecting band is a fixed end, the fixed end is fixed with the inside of the external ring groove of the external member, the other end of each elastic convergence semi-ring connecting band is a free end, but the whole elastic convergence semi-ring connecting band is elastic to one side of the circle center, so that one side of the free end is inclined to the circle center.

The lower extreme of pole plug-in components has the chamfer, and when pole plug-in components downwardly entering pole external member, the chamfer oppression elasticity converges the free end of semi-ring connecting band, forces the free end outwards to remove, but when plug-in components inner ring recess downwardly moving to with external ring groove position correspondence of external ring, the free end can imbed in the plug-in components inner ring recess for at least some jack-posts are located the juncture of plug-in components inner ring recess and external ring groove, firmly axial lock together pole plug-in components with pole plug-in components.

The bottom of the male-female caulking groove is respectively provided with a front chamfer and two side chamfers, or the top of the male-female caulking groove of the external member is simultaneously provided with a front chamfer and two side chamfers, so that the male-female caulking groove and the female-male caulking groove are mutually sleeved.

The invention has the beneficial effects that: the plurality of jacking columns are positioned at the inner side of the inner ring groove of the plug-in unit, and as the diameter of each jacking column is larger than the depth of the inner ring groove of the plug-in unit, one half of each jacking column is positioned at the inner side of the convex-concave embedding groove of the sleeve member at the same time, namely, each jacking column is positioned at the inner ring groove of the plug-in unit and the outer ring groove of the sleeve member at the same time, so that the rod sleeve member and the rod plug-in unit cannot axially move. Meanwhile, when the rod sleeve and the rod insert are sleeved, the insert convex-concave embedding groove on the outer side of the rod sleeve and the sleeve convex-concave embedding groove on the outer side of the rod insert are matched and nested with each other, so that the rotation freedom degree between the rod sleeve and the rod insert is locked. The rod sleeve and the rod insert are locked in axial degree of freedom through the plurality of jacking posts, and after the rod sleeve and the rod insert are locked in rotational degree of freedom through the insert convex-concave caulking groove and the sleeve convex-concave caulking groove matching sleeve, the two drilling rods can be firmly fixed together.

In the quick-connection structure scheme matched with the electromagnetic starting tool, one-step butt connection is realized through sleeving, the connected upper and lower drill rods have a high-strength axial constraint relationship and a torsion constraint relationship, the disassembly is very convenient, and the one-step disassembly can be realized.

In the scheme of the quick-connection structure matched with the lock nut, after the butt joint is realized through sleeving, the butt joint can be firmly realized by only small-amplitude rotation (less than half a cycle), and then the butt joint structure is easily locked through adjusting the lock nut. Firm in connection is reliable, through also conveniently demolishs.

The elastic supporting component comprises the jacking posts and the annular connecting belt, wherein the annular connecting belt is connected with the jacking posts in series to form a combination body, and the combination body is sleeved in the annular accommodating area. The connecting belt has elasticity and is designed to be in an inward convergent shape, and a plurality of jacking posts are fixed at the middle part and the two ends of the elastic convergent circular ring connecting belt at equal intervals. Under the elastic action of the connecting belt, each prop is also in a convergent shape, so that the elastic convergent circular ring connecting belt and the plurality of prop are sleeved in the inner ring groove of the plug-in unit in an inward contracted mode in the assembled natural state.

The diameter of the top post is greater than the depth of the insert inner ring groove, but not greater than the depth of the sleeve outer ring groove. Thus, when the top post is located inside the insert inner ring groove, one half is located in the insert inner ring groove and the other half is located in the sleeve outer ring groove, the rod sleeve and the rod insert can be firmly axially locked together. But when all the top posts are simultaneously positioned inside the sleeve outer ring groove, the axial locking of the rod sleeve and the rod insert can be released.

Drawings

Fig. 1 is one of the assembly relations of the present invention applied between upper and lower drilling rods.

Fig. 2 is a view of the assembled structure of fig. 1.

FIG. 3 is a longitudinal section B-B of FIG. 2.

Fig. 4 is a cross-sectional view of fig. 3C-C.

Fig. 5 is a schematic view of the annular receiving area of fig. 4 with the resilient support assembly removed.

Fig. 6 is a structural view of a first resilient support assembly.

Fig. 7 is a top view of fig. 6.

Fig. 8 is a structural view of a second resilient support assembly.

Fig. 9 is a schematic diagram of a free-jack-post constraint structure.

Fig. 10 is side views of the rod insert.

Fig. 11 is a side view and cross-sectional view of the stem insert.

Fig. 12 is a side view and cross-section of the pole set.

Fig. 13 is a structural view of a third spring support assembly.

Fig. 14 is a structural view of a fourth resilient support assembly.

Fig. 15 is a structural view of a start tool.

Figure 16 is a second view of the assembly relationship of the present invention as applied to upper and lower drill rods.

Fig. 17 is a structural view of a fifth spring support assembly.

Fig. 18 is a close-up view of the resilient support assembly of fig. 17.

Fig. 19 is a perspective view of fig. 16.

Figure 20 is a third view of the assembly relationship of the present invention as applied to upper and lower drill rods.

Fig. 21 is a side view of fig. 20.

Fig. 22 is an assembled schematic view of fig. 20.

Fig. 23 is a block diagram of another activation tool.

Fig. 24 is a circuit diagram of a first press-contact switch and a second press-contact switch.

Reference numerals in the drawings: the drill rod body 1, the rod insert 2, the rod sleeve 3, the insert body 4, the insert inner ring groove 5, the insert convex-concave caulking groove 6, the insert stopper 7, the insert body 8, the insert outer ring groove 9, the insert convex-concave caulking groove 10, the top post 11, the elastic convergence circular ring connecting band 12, the through hole 13, the stopper 14, the stopper pin 15, the elastic convergence semi-ring connecting band 16, the fixed end 17, the end through post 18, the through free end 19, the positioning through hole 20, the rod seat 21, the rod 22, the threaded section 23, the compression nut 24, the insert stopper 25, the elastic expansion semi-ring connecting band 26, the end elastic rod 27, the hanging end 28, the insert ring caulking groove 29, the insert rod fixing ring 30, the insert rod 31, the ring sleeve 32, the handle 33, the electromagnet 34, the switch 35, the annular accommodating area 36, the hanging groove 37, the fixing frame 38, the cross rail 39, the cross rail 40, the arc electromagnetic bracket 41, the oblique guide 42, the oblique slide rod 43, 44, the longitudinal rail 45, the longitudinal slide rod 46, the bump 47, the press contact switch one 48, the tension spring 49, the press contact switch two 50.

Detailed Description

The invention will be further described with reference to the drawings and examples.

Example 1: a quick connection structure for a drilling rod for geological exploration, shown in fig. 2, is designed mainly aiming at the problem that the prior multi-section butt joint process of a drilling rod needs to be repeatedly screwed by a large spanner in a hoisting state to finish butt joint, and time and labor are wasted, wherein the assembling process of the quick connection structure is shown in fig. 1, and the assembled structural relationship is shown in fig. 2. According to the design, the quick connection is realized by improving the structure of the drill rod joint, and the service performance and the working efficiency of the equipment are improved.

Specifically, the drill rod body 1 is an elongated and hollow rod member, provided with a rod set 3 at its upper end and a rod insert 2 at its lower end. When two adjacent drilling rods are in butt joint, as shown in fig. 1, the rod plug-in 2 of the upper rod and the rod sleeve 3 of the lower rod are fixedly connected together in a sleeved mode.

The internal structure of the two drill rods after connection is shown in fig. 3, it can be seen that in the middle of the sleeving part of the two sets, there is an annular accommodating area 36, and an elastic support assembly as shown in fig. 6 or 8 is sleeved in the annular accommodating area 36, and the rod insert 2 and the rod sleeve 3 can be firmly locked together through the elastic support assembly.

The rod insert 2 is provided with an insert inner ring groove 5, an insert convex-concave caulking groove 6 and an insert stop 7 in sequence on a hollow insert body 4 as shown in fig. 10 and 11. The upper part of the outer side of the plug-in main body 4 is provided with a plug-in baffle 7, the lower end part of the plug-in baffle 7 is a plug-in end, the middle part of the plug-in end is provided with an inward concave plug-in inner ring groove 5, and the outer side surface of the plug-in end is provided with a plug-in convex-concave embedding groove 6.

As shown in fig. 12, the rod sleeve 3 is provided with an outer ring groove 9 and a sleeve convex-concave caulking groove 10 on a hollow sleeve main body 8, specifically, the middle part of the sleeve main body 8 is provided with the outer ring groove 9 protruding outwards, and the inner wall of the sleeve main body 8 is provided with the sleeve convex-concave caulking groove 10.

As shown in fig. 3 and 10, the male and female insert grooves 6 can be matched and sleeved with the male and female insert grooves 10, and after the male and female insert grooves are sleeved, the inner ring grooves 5 and the outer ring grooves 9 of the male insert are corresponding in position and combined to form an annular accommodating area 36, as shown in fig. 5. The bottom of the male concave-convex caulking groove 6 is respectively provided with a front chamfer and two side chamfers, or simultaneously the top of the male concave caulking groove 10 is respectively provided with a front chamfer and two side chamfers, so that the male concave caulking groove and the female concave caulking groove are mutually sleeved.

This embodiment employs an elastic support assembly as shown in fig. 6 and 7, which comprises a plurality of posts 11 connected in series to form a combination, and an annular connecting band which is sleeved in the annular receiving area 36. Specifically, the annular connecting band used in this embodiment is an elastic convergent annular connecting band 12, which is in an unsealed annular shape as a whole, i.e. two free ends of the connecting band are provided. The elastic convergence circular ring connecting band 12 has elasticity and is designed to be inwardly converged, and a plurality of posts 11 are fixed at equal intervals at the middle and both ends of the elastic convergence circular ring connecting band 12. Under the elastic action of the connecting belt, each jack post 11 is also respectively in a convergent shape, so that the elastic convergent circular ring connecting belt 12 and the jack posts 11 are both sleeved in the inner ring groove 5 of the plug-in unit in an inward contracted manner in the assembled natural state.

The diameter of the top post 11 is greater than the depth of the insert inner ring groove 5, but not greater than the depth of the sleeve outer ring groove 9. Thus, when the top post 11 is located inside the insert inner ring groove 5, one half is located in the insert inner ring groove 5 and the other half is located in the sleeve outer ring groove 9, the rod insert 2 and the rod sleeve 3 can be firmly locked together axially. But when all the pins 11 are simultaneously located inside the sleeve outer ring groove 9, the axial locking of the rod insert 2 with the rod sleeve 3 can be released.

When the above scheme is adopted in this embodiment, the starting tool as shown in fig. 15 is also needed. As can be seen from fig. 15, the tool is formed into a combined ring shape by buckling two semicircular rings 32, the end of each ring 32 is respectively connected with a handle 33, and the two end parts are hinged together through a pin shaft, so that when the handles 33 on the two sides are pressed, the two rings 32 can be driven to be unfolded or closed. Meanwhile, electromagnets 34 are respectively fixed in the caulking grooves of the concave cambered surfaces of the two ring sleeves 32, the electromagnets 34 on two sides are connected with a power supply through a switch 35, and the switch 35 is positioned on the handle part. When the starting tool is used, the two ring sleeves 32 of the starting tool are unfolded and then are encircling the outer side of the annular accommodating area 36, the pressing switch starts the electromagnet, the electromagnet is a strong magnet, and the plurality of jacking posts 11 on the inner side of the annular accommodating area 36 can be attracted, so that the jacking posts expand outwards to enter the inner side of the sleeve outer ring groove 9 respectively, and the locking of the rod plug-in unit 2 and the rod sleeve 3 can be released. However, in the natural state, the stem 11 is located inside the insert inner ring groove 5, and can firmly lock the rod insert 2 and the rod sleeve 3 together.

It can be seen that, in the above-mentioned scheme of the present embodiment, when the starting tool is not used, the plurality of pins 11 are located inside the insert inner ring groove 5, and since the diameter of the pins is larger than the depth of the insert inner ring groove 5, a portion (preferably half) of each pin 11 is located inside the sleeve convex-concave caulking groove 9, i.e. each pin is located inside the insert inner ring groove 5 and the sleeve outer ring groove 9 at the same time, so that the rod insert 2 and the rod sleeve 3 cannot move axially. Meanwhile, when the rod insert 2 is sleeved with the rod sleeve 3, the insert convex-concave embedding groove 6 on the outer side of the rod insert 2 and the sleeve convex-concave embedding groove 10 on the outer side of the rod sleeve 3 are mutually matched and nested together, so that the rotation freedom degree between the rod insert 2 and the rod sleeve 3 is locked. The rod insert 2 and the rod sleeve 3 are locked in axial freedom degree through the plurality of jacking posts, and the two drilling rods can be firmly fixed after the two rod inserts are locked in rotational freedom degree through matching and sleeving of the insert convex-concave caulking groove 6 and the sleeve convex caulking groove 10.

This kind of with the fixed mode of two boring bars grafting, it is very convenient to operate, will the elastic support subassembly is assembled in external ring groove 9 inboard (the elastic support subassembly is in the convergence state this moment, in order to prevent that it from dropping, the interior vaulting pole of accessible wooden or plastics, the bottom has the round tray as the support, outside and round tray upside including the vaulting pole suit, insert external ring groove 9 corresponding position along with interior vaulting pole), encircle the start-up instrument in external ring groove 9's outside and switch on for the electromagnet has strong magnetism, expand the elastic support subassembly and be located external ring groove 9 inboard of external member, then (after pulling out interior vaulting pole), only need with the pole plug-in components 2 of last drilling rod with the pole sleeve components 3 of drilling rod down mate the butt joint, the power is closed can, easy operation is convenient, firm in connection is reliable.

Example 2: on the basis of the embodiment 1, the elastic support assembly adopts a structural form as shown in fig. 9. As can be seen from fig. 9, a plurality of posts 11 are connected in series in order to the outside of the same elastic convergence ring connecting band 12, and the two ends of the elastic convergence ring connecting band 12 are respectively provided with a stopper 14. In this embodiment, the through holes 13 are respectively provided on the plurality of top posts, and it can be seen that each top post is respectively sleeved on the outer side of the elastic convergent ring connecting belt 12 and can slide relatively. And a balance spring is sleeved outside the belt body between every two adjacent jacking columns, so that the jacking columns are kept at equal intervals under the action of the corresponding springs.

The individual struts of the elastic support assembly of example 1 are fully dependent on the elasticity of the elastically converging annular connecting band 12 for deployment and convergence. The top posts in the elastic support assembly in this embodiment can slide independently, so that the starting tool is not required to be an electromagnet structure of a complete ring. In this embodiment, a semicircular electromagnet starting tool may be configured, and after the starting tool is matched and attached to the outer circumferential surface of the male and female caulking groove 9 of the sleeve and is electrified, each jack post compresses the corresponding spring to approach one side of the electromagnet, so that the whole elastic supporting component is completely located inside the outer annular groove 9 of the sleeve and is in an unfolding state, so that the rod sleeve 3 of the upper drill rod can enter the rod insert 2 of the lower drill rod downwards, and can be taken out smoothly, and the butt joint and unlocking processes can be operated by a single person.

Example 3: based on the embodiment 1, an elastic support member as shown in fig. 13 is employed. As can be seen, the elastic support assembly comprises a plurality of posts 11 and two elastic convergence semi-ring connecting bands 16, wherein the middle part of each elastic convergence semi-ring connecting band 16 is fixed with the corresponding post 11, one end of each elastic convergence semi-ring connecting band 16 is fixed with an end penetrating post 18, the other end is a penetrating free end 19, the middle part of the end penetrating post 18 comprises a penetrating hole, and the penetrating free end 19 of the other connecting band is allowed to penetrate.

Therefore, the two elastic convergence semi-ring connecting bands 16 are butted end to end, namely the penetrating free end 19 of one elastic convergence semi-ring connecting band 16 is sleeved in the penetrating column 18 of the other elastic convergence semi-ring connecting band 16, so that the ends of the two connecting bands can freely stretch and retract. As can be seen from the left side (a) view in fig. 13, in the natural state after the sleeving, the two elastic convergence semi-ring connecting bands 16 are in a convergence state, and the corresponding jacking posts are respectively wrapped in the loop bar inner ring groove 5. As can be seen from the right side (b) view in fig. 13, under the action of the electromagnet, each jack post springs outwards, so that the two elastic convergence semi-ring connecting bands 16 respectively carry the corresponding jack posts in the male and female slots 9 of the sleeve, and are in the unlocked state.

The length of the free end 19 or the depth of the through-hole of the end through the post 18 are designed such that the two connecting strips 16 are not separated from each other even in the expanded state and have sufficient compression space in the contracted state.

Example 4: on the basis of embodiment 1, the elastic support assembly adopts a structural form as shown in fig. 14. Specifically, as can be seen in the figure, the elastic supporting component includes a plurality of pillars 11 and two elastic convergence semi-ring connecting bands 16, each elastic convergence semi-ring connecting band 16 is respectively fixed with the plurality of pillars 11, one end of each elastic convergence semi-ring connecting band 16 is a fixed end 17, the fixed end 17 is fixed with the inside of the external ring groove 9 of the sleeve, and the other end of each elastic convergence semi-ring connecting band 16 is a free end. But the elastic convergence semi-ring connecting band 16 is elastic toward the center side as a whole (except for the fixed end 17) so that the free end side is inclined toward the center.

The lower end of the rod sleeve 3 has a chamfer which forces the free end of the resilient converging semi-ring connecting band 16 to move outwardly (i.e., inwardly of the sleeve outer ring groove 9) when the rod sleeve 3 is moved downwardly into the rod insert 2, but which engages the insert inner ring groove 5 when the insert inner ring groove 5 is moved downwardly into position with the sleeve outer ring groove 9 such that at least a portion of the abutment is located at the interface of the insert inner ring groove 5 and the sleeve outer ring groove 9, thereby securely locking the rod insert 2 and the rod sleeve 3 together axially.

This embodiment differs from embodiment 1 in that no start tool is required during the tripping of the upper drill rod down. But still requires the use of an activation tool when removing the upper and lower drill rods. Therefore, the assembly process between the drill rods can be simplified, and the assembly can be completed only by aligning and inserting one step. Although this embodiment may be implemented with only a portion of the jack posts connected between the rod insert 2 and the rod sleeve 3, the strength is slightly lower than that of embodiment 1, but in the case of low geological hardness or low drilling depth requirements, the rod insert 2 and the rod sleeve 3 can be firmly locked together axially, so that the use is more convenient.

Example 5: on the basis of example 1, the same points are not repeated, except that the inner wall of the rod insert 2 no longer has the male and female insert grooves 10 of the sleeve, and the outer wall of the rod insert 3 no longer has the male and female insert grooves 6 of the sleeve, so that the two are sleeved with the sleeve to be rotatable.

Meanwhile, the elastic support assembly adopts a structural form as shown in fig. 17 and 18. Specifically, the elastic support assembly includes a plurality of top posts 11 and two elastic expansion half ring connecting bands 26, and each elastic expansion half ring connecting band 26 has an outward elastic force and is approximately semicircular. Each elastic expansion half ring connecting band 26 is respectively fixed with a plurality of jacking posts 11, one end of each elastic expansion half ring connecting band 26 is a fixed end 17, the end is fixed with the inside of the sleeve outer ring groove 9, and the other end of each elastic expansion half ring connecting band 26 is a free end.

The elastic expansion half ring connecting band 26 is elastic toward the side far away from the center (i.e., toward the inner side of the sleeve outer ring groove 9), but the free end (end elastic rod 27) is inclined toward the center to expose out of the sleeve outer ring groove 9.

In the elastic support member of this embodiment, compared with embodiment 4, embodiment 4 is converged inward in a natural state, and this embodiment is expanded outward in a natural state. It can be seen that in the natural state of non-assembly, the elastic support element is hidden inside the sleeve outer ring groove 9.

As shown in fig. 18, at the free end of the elastic expansion half ring connecting band 26, an end elastic rod 27 is provided, and the end elastic rod 27 is terminated with a barb-type hanging end 28, wherein the end elastic rod 27 is inclined toward the center of the circle in a natural state. So that the end spring rod 27 and its hooking end 28 spring out of the sleeve outer ring groove 9 before the rod sleeve 3 is inserted. But the stem sleeve 3 has a chamfer at its bottom which is able to press the hooking end 28 to expand outwards (i.e. move inwards of the sleeve outer ring groove 9) when the stem sleeve 3 is inserted into the stem insert 2.

As shown in fig. 17, a hooking groove 37 is formed on the outer side wall of the inner ring groove 5 of the insert, and when the inner ring groove 5 of the insert moves down to correspond to the outer ring groove 9 of the sleeve, the rotating rod sleeve 3 of the drill rod is manually put on, so that the hooking end 28 automatically bounces into the hooking groove 37 when the hooking end 28 rotates to correspond to the hooking groove 37. Further rotating the rod sleeve 3 can drive the elastic expansion semi-ring connecting band 26 to shrink towards the center of the circle as in the changing process from (a) to (b) in fig. 17, so that part or all of the jacking columns enter the inner ring groove 5 of the plug-in unit from the outer ring groove 9 of the sleeve, and as the diameter of each jacking column is larger than the depth of the inner ring groove 5 of the plug-in unit, half of each jacking column is positioned in the inner ring groove 5 of the plug-in unit, and the other half of each jacking column is positioned in the outer ring groove 9 of the sleeve, so that the rod plug-in unit 2 and the rod sleeve 3 can be firmly and axially locked together.

Regarding the rotational locking relationship of the rod insert 2 and the rod sleeve 3, a mating relationship as shown in fig. 19 is employed in this embodiment. Specifically, a series of perforations are uniformly distributed along the circumferential direction on the edge of the insert stop 7 of the rod insert 3, an insert stop 25 is arranged at the upper end of the rod insert 2, and a series of positioning perforations 20 are uniformly distributed along the circumferential direction on the edge of the insert stop 25.

The upper side of the baffle 7 is also provided with a rod penetrating seat 21 sleeved on the rod sleeve 3, a series of rod penetrating 22 are circumferentially distributed and fixed at the edge of the lower side surface of the rod penetrating seat 21, and each rod penetrating 22 corresponds to a corresponding positioning perforation. Each penetrating rod 22 sequentially penetrates through the through hole of the insert retaining table 7 and the through hole of the sleeve retaining table 25, so that the rod insert 2 and the rod sleeve 3 are locked together and cannot rotate, and locking of the rotation freedom degree is realized.

The pressing part is further arranged on the outer side of the rod penetrating seat 21, for example, a clamping spring or a locking nut can be additionally arranged on the outer side of the rod sleeve 3 to fix the rod penetrating seat 21. In this embodiment, as shown in fig. 16, a threaded section 23 is provided on the rod insert 2, and a compression nut 24 is sleeved thereon, and the rod penetrating seat 21 is fixed by compression by the compression nut 24.

Based on the above-mentioned scheme, when the present embodiment is applied, after the rod sleeve member 3 is inserted into the rod insert member 2 downward, a small angle (less than half a cycle) is further required to be rotated, then the elastic support assembly is driven to lock the axial degrees of freedom of the rod insert member 2 and the rod sleeve member 3, and then the rod insert member 2 and the rod sleeve member 3 are locked by translating the rod penetrating seat 21 downward, so that the rotational degrees of freedom of the rod insert member 2 and the rod sleeve member 3 are locked by utilizing more penetrating rods. Compared with the existing threaded butt joint drill rod mode, the threaded butt joint drill rod has the characteristics of simplicity and convenience in installation. Although the mode of downward movement of the rod penetrating seat and jacking of the lock nut is needed, the operations do not need to consume large manpower, and the subsequent steps can be operated by a single person in a matched mode.

In this embodiment, compared with embodiment 1, no actuation tool is needed.

Example 6: on the basis of the embodiment 5, the torsion of the upper and lower drill rods is borne by the embodiment 5 through a plurality of penetrating rods 22. Considering the problems of matching compactness and strength, the embodiment adopts a structural mode as shown in fig. 20-22, and improves the connection strength of the upper and lower drilling rods.

It can be seen that the inner wall of the rod insert 2 has a sleeve male and female caulking groove 10, the outer wall of the rod insert 3 has an insert ring caulking groove 29, and each groove of the sleeve male and female caulking groove 10 corresponds to each groove position of the insert ring caulking groove 29, and the groove opening width is uniform. In comparison with embodiment 1, in embodiment 1, the male-female matching between the rod insert 2 and the rod sleeve 3 is fitted together, while in this embodiment, the groove positions are correspondingly fitted to each other.

The upper end of the rod sleeve member 3 is not provided with a baffle table, but an inner annular table is arranged at the bottom of the inner cavity of the rod insert 2, and when the rod insert 2 and the rod sleeve member 3 are mutually sleeved, the bottom of the rod sleeve member 3 is supported on the inner annular table of the rod insert 2 as shown in fig. 21.

The rod fixing ring 30 is sleeved outside the rod sleeve 3, a series of rectangular rods 31 are radially fixed at the circumferential edge of the bottom of the rod fixing ring 30, the inner half of each rod 31 is sleeved in each groove of the insert ring caulking groove 29, and the outer half of each rod 31 is sleeved in each groove of the sleeve convex-concave caulking groove 10, so that the rod insert 2 and the rod sleeve 3 are locked together through each rod 31 and cannot rotate.

In order to prevent the rod fixing ring 30 from falling off, a locking manner as in embodiment 5 may be employed, and for example, fixation may be performed by a snap spring or a lock nut. In this embodiment, as shown in fig. 22, a threaded section 23 is provided on the rod sleeve 3, and a compression nut 24 is sleeved thereon, and the rod fixing ring 30 is fixed by compression by the compression nut 24.

Example 7: based on example 1, an activation tool as shown in fig. 23 and 24 was used. As can be seen, the activation tool includes a holder 38, a U-shaped lever, an electromagnetic bracket assembly, and the like. The fixing frame 38 comprises a top plate and peripheral supporting legs, the top plate is of a U-shaped structure, and the fixing frame 38 is supported on the bottom surface of the periphery of the drilling rod.

Transverse rails 39 are symmetrically arranged on two sides of the fixing frame 38, transverse sliding blocks 40 are sleeved in each transverse rail 39 in a matching mode, arc-shaped electromagnetic supports 41 are respectively fixed at the inner ends of the transverse sliding blocks 40, and arc-shaped electromagnets 34 are fixedly sleeved on concave arc surfaces of the corresponding arc-shaped electromagnetic supports 41 in a matching mode.

The U-shaped rod piece comprises a cross rod 44 in the middle and oblique sliding rods 43 on two sides.

An inclined guide sleeve 42 is obliquely connected to the upper side of each transverse sliding block 40, and a corresponding inclined sliding rod 43 is sleeved on the inner side of each inclined guide sleeve 42 in a matching manner.

A longitudinal rail 45 is arranged in the middle of the top plate of the fixing frame 38, a longitudinal slide block 46 is sleeved in the longitudinal rail 45 in a matching way, and the cross rod and the longitudinal slide block 46 are fixed together, so that the cross rod can translate along the longitudinal direction along with the longitudinal slide block 46.

Based on the above structure, when the cross bar 44 translates along the longitudinal direction, the oblique sliding bars 43 on both sides can be driven to translate along the longitudinal direction, so as to drive the oblique guide sleeves 42 on both sides to move inwards or outwards.

Meanwhile, a tension spring 49 is connected between the outer side of the cross rod and the top plate, so that the cross rod is positioned at the outer side edge of the top plate in a natural state. I.e. in the natural state, the arc-shaped electromagnetic brackets 41 on both sides are in the unfolded state.

The middle part of the inner side of the cross rod is provided with a convex block 47, meanwhile, the inner side wall of the top plate is fixedly provided with a first press contact switch 48, when the cross rod is driven by hands to move inwards along the longitudinal direction, when the convex block 47 of the cross rod props against the first press contact switch 48, as shown in fig. 24, the electromagnets 34 on the two sides are simultaneously powered on to generate attraction force, so that the electromagnets on the two sides are surrounded on the joint area of the drilling rod. After the installation is completed, the other pressing switch II 50 is manually pressed, so that the electromagnets on the two sides are simultaneously powered off, and at the moment, under the action of the tension spring, the cross rod and the oblique sliding rods on the two sides are retracted backwards, so that the arc-shaped electromagnetic brackets 41 on the two sides are in an unfolding state.

According to the embodiment, the encircling process and the electrifying process of the electromagnets on two sides can be realized only by pressing the cross rod to move forwards, and the encircling process can be contacted by pressing the second pressure contact switch, so that the operation is simple and convenient. The fixing frame can keep each component to be always located in the peripheral area of the drilling rod, and a plurality of drilling rods can be assembled and disassembled in a matching mode at any time.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. It is not excluded that, on the basis of embodiment 2 or embodiment 3, the stopper pins 15 shown in fig. 9 are fixed to the belt bodies at both ends of the slidable jack posts, so that part or all of the jack posts can be restrained to slide within a range between the adjacent two stopper pins 15.

Claims (7)

1. The quick-connection structure of the geological exploration drilling rod is characterized by comprising a hollow drilling rod main body (1) and an elastic supporting component, wherein a rod sleeve (3) is arranged at one end of the drilling rod main body (1), a rod insert (2) is arranged at the other end of the drilling rod main body, the rod insert (2) comprises a hollow insert main body (4), an insert inner ring groove (5) and an insert blocking table (7), the insert blocking table (7) is arranged at the outer side of the insert main body (4), the lower end part of the insert blocking table (7) is an inserting end, an insert inner ring groove (5) is arranged in the middle of the inserting end, the rod sleeve (3) comprises a sleeve main body (8) and a sleeve outer ring groove (9), the sleeve outer ring groove (9) is arranged in the middle of the sleeve main body (8), after the sleeve is sleeved, the insert inner ring groove (5) corresponds to the sleeve outer ring groove (9) in position, an annular accommodating area (36) is formed by combination, and the elastic supporting component comprises a jack post (11) and an annular connecting band, and a plurality of jack posts (11) are connected in series to form a combination, and the combination body is arranged between the annular sleeve (36) and the sleeve main body (3);

the fixed rotation constraint mechanism comprises an insert convex-concave caulking groove (6) arranged on the outer side of the rod insert (2) and a sleeve convex-concave caulking groove (10) arranged in the inner cavity of the rod sleeve (3), wherein the sleeve convex-concave caulking groove (10) is formed in the inner wall of the sleeve main body (8), and the insert convex-concave caulking groove (6) can be matched and sleeved with the sleeve convex-concave caulking groove (10);

The diameter of the top column (11) is larger than the depth of the insert inner ring groove (5) but not larger than the depth of the sleeve outer ring groove (9), so that when the top column (11) is positioned inside the insert inner ring groove (5), one half of the top column is positioned in the insert inner ring groove (5), and the other half of the top column is positioned in the sleeve outer ring groove (9), the rod sleeve (3) and the rod insert (2) can be firmly locked together in the axial direction, but when all the top columns (11) are positioned inside the sleeve outer ring groove (9) at the same time, the axial locking of the rod sleeve (3) and the rod insert (2) can be released;

The quick-connection structure of the geological exploration drilling rod further comprises a starting tool, two semicircular loop sleeves (32) are buckled to form a combined circular ring shape, the end parts of each loop sleeve (32) are respectively connected with a handle (33), the end parts of the two loop sleeves (32) are hinged together through a pin shaft, so that when the handles (33) on the two sides are pressed, the two loop sleeves (32) can be driven to be unfolded or closed, meanwhile, electromagnets (34) are respectively fixed in the caulking grooves of the concave cambered surfaces of the two loop sleeves (32), the electromagnets (34) on the two sides are connected with a power supply through a switch (35), and the switch (35) is located on the handle part.

2. The quick-connection structure of a geological exploration drilling rod according to claim 1, wherein the annular connecting belt is an elastic convergence annular connecting belt (12), the whole annular connecting belt is an unsealed annular shape, namely, two ends of the connecting belt are provided with two free ends, the elastic convergence annular connecting belt (12) is elastic and is in an inward convergence shape, the plurality of jacking posts (11) are fixed at the middle part and two ends of the elastic convergence annular connecting belt (12) at equal intervals, and under the elastic action of the elastic convergence annular connecting belt (12), the jacking posts (11) are respectively in a convergence shape, so that the elastic convergence annular connecting belt (12) and the plurality of jacking posts (11) are sleeved in the inner annular groove (5) of the plug-in unit in an inward shrinkage manner in the assembled natural state.

3. The quick-connection structure of a geological exploration drilling rod according to claim 1, wherein the annular connecting belt is an elastic convergence annular connecting belt (12), the elastic supporting assembly is formed by sequentially connecting a plurality of jacking posts (11) in series on the outer side of the same elastic convergence annular connecting belt (12), blocking platforms (14) are respectively arranged at two ends of the elastic convergence annular connecting belt (12), through holes (13) are respectively arranged on the jacking posts, the jacking posts are respectively sleeved on the outer side of the elastic convergence annular connecting belt (12) and can slide relatively, and balance springs are sleeved on the outer sides of the belt between the adjacent jacking posts, so that the jacking posts are kept equidistant under the action of the corresponding springs.

4. The quick-connect structure of a geological exploration drill rod according to claim 1, characterized in that the annular connecting band is an elastic convergence semi-ring connecting band (16), the elastic supporting component comprises a plurality of top posts (11) and two elastic convergence semi-ring connecting bands (16), the middle part of each elastic convergence semi-ring connecting band (16) is fixed with the corresponding top post (11), one end of each elastic convergence semi-ring connecting band (16) is fixed with an end penetrating post (18), the other end is a penetrating free end (19), the middle part of the end penetrating post (18) contains a penetrating hole and allows the penetrating free end (19) of the other elastic convergence semi-ring connecting band (16) to penetrate, and the two elastic convergence semi-ring connecting bands (16) are butted end to end, namely the penetrating free end (19) of one elastic convergence semi-ring connecting band (16) is sleeved in the penetrating post (18) of the other elastic convergence semi-ring connecting band (16), so that the ends of the two elastic convergence semi-ring connecting bands (16) can freely stretch out and draw back.

5. The quick-connection structure of a geological exploration drilling rod according to claim 1, wherein the annular connecting belt is an elastic convergence semi-ring connecting belt (16), the elastic supporting assembly comprises a plurality of jacking posts (11) and two elastic convergence semi-ring connecting belts (16), each elastic convergence semi-ring connecting belt (16) is respectively fixed with the jacking posts (11), one end of each elastic convergence semi-ring connecting belt (16) is a fixed end (17), the fixed end (17) is fixed with the inside of the external ring groove (9) of the external sleeve, the other end of each elastic convergence semi-ring connecting belt (16) is a free end, and the elastic convergence semi-ring connecting belt (16) is elastic towards the circle center side as a whole, so that one side of the free end is inclined towards the circle center.

6. The quick-connect structure of a geological survey drill rod according to claim 5, characterized in that the lower end of the rod insert (2) is provided with a chamfer, and when the rod insert (2) enters the rod sleeve (3) downwards, the chamfer presses the free end of the elastic convergence semi-ring connecting band (16) to force the free end to move outwards, but when the insert inner ring groove (5) moves downwards to correspond to the position of the sleeve outer ring groove (9), the free end is embedded into the insert inner ring groove (5) so that at least a part of the jacking posts are positioned at the junction position of the insert inner ring groove (5) and the sleeve outer ring groove (9), and the rod sleeve (3) and the rod insert (2) are firmly and axially locked together.

7. The quick-connection structure of a geological exploration drill rod according to claim 1, characterized in that the bottom of the male and female caulking groove (6) is respectively provided with a front chamfer and two side chamfers, or simultaneously the top of the male and female caulking groove (10) of the external member is respectively provided with a front chamfer and two side chamfers, so that the male and female caulking grooves are mutually sleeved.