CN214532903U

CN214532903U - Device for preventing casing and drill rod from sliding off

Info

Publication number: CN214532903U
Application number: CN202120473531.8U
Authority: CN
Inventors: 张作家; 宋立峰; 王成; 陈东
Original assignee: BGI ENGINEERING CONSULTANTS Ltd
Current assignee: BGI ENGINEERING CONSULTANTS Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-10-29
Anticipated expiration: 2031-03-04

Abstract

The utility model relates to the technical field of exploration and drilling construction devices, in particular to a device for preventing a sleeve and a drill rod from sliding off, the casing pipe clamping structure comprises an annular buckle clamped on the outer wall of a casing pipe and a foot support fixedly arranged on the annular buckle, the distance from one end of the foot support far away from the annular buckle to the circle center of the annular buckle is larger than the radius of the drill hole, the drill rod clamping and fixing structure comprises calipers arranged at the top of the sleeve, each caliper comprises two handles and a return spring, the middle parts of the handles are hinged to each other, the handles are symmetrically arranged, one end of each handle is provided with a bayonet for clamping a drill rod, the other end, far away from the bayonet, of each handle is connected with two end parts of each return spring, and when the return springs are in a natural state, the two bayonets of the handles are closed. The utility model discloses an in the device can prevent the work progress, drilling rod and sleeve pipe drop to drilling in, reduce economic loss.

Description

Device for preventing casing and drill rod from sliding off

Technical Field

The utility model relates to an reconnaissance probing construction technical field, concretely relates to a device for preventing sleeve pipe and drilling rod landing.

Background

The drill rod and the casing are necessary materials in exploration and drilling construction, are generally made of steel, and have higher price. Both ends of the sleeve are provided with threads, so that the butt joint is convenient to lengthen, the port is deformed and damaged due to impact in construction, the deformed and damaged part is cut off, the thread is undoubtedly cut, the cost is high, and the deformed part of the unthreaded sleeve is usually cut off to be placed at the top of a drilled hole for use in actual use. When the device is used, the sleeve is generally directly inserted into a drill hole and is lowered to a required position through the impact action of a heavy hammer. The sleeve is prevented from sliding downwards by the friction force between the wall of the hole and the wall of the sleeve. However, in the drilling construction process, the safety coefficient is not high only by depending on the friction resistance between the casing and the rock-soil layer, the casing is easy to slide into the drill hole under the self gravity and vibration of the casing, the casing is difficult to salvage, the material waste is caused, and even the drill hole is directly scrapped.

On the other hand, when lifting and lowering the drill, the joint of the next drill rod is clamped by a Y-shaped caliper manually, the caliper is placed at the top of the casing pipe, and then the joint of the previous drill rod is screwed by using the pipe wrench. The Y-shaped calipers are used for clamping the next section of drill rod to prevent the drill rod from falling to a drill hole, and meanwhile, the Y-shaped calipers are convenient to assemble and disassemble the upper section of drill rod. However, in the actual work progress, often can forget to block the drilling rod with Y type calliper because of workman carelessness carelessly, perhaps block wrong drilling rod, or the drilling rod is not blocked firmly, causes the drilling rod to drop to drilling, and the probability that usually the drilling rod was salvaged out in dropping the drilling is extremely low, can directly lead to this drilling abandonment, can't continue to use, can cause very big economic loss.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a device for preventing sleeve pipe and drilling rod landing can prevent in the work progress, and drilling rod and sleeve pipe drop to drilling in, reduce economic loss.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a device for preventing sleeve pipe and drilling rod landing, it includes that casing joint solid structure and drilling rod joint solid structure, casing joint solid structure is including being used for the card to establish annular buckle on the sleeve pipe outer wall and the fixed heel brace of locating on annular buckle, the heel brace is kept away from the one end of annular buckle and is greater than the radius of drilling to the distance of the centre of a circle department of annular buckle, the solid structure of drilling rod joint is including the calliper of locating sleeve top, calliper includes two middle part mutual articulated handles and reset spring, two the handle symmetry sets up, every the one end of handle is equipped with the bayonet socket that is used for the chucking drilling rod, two reset spring's both ends are connected respectively to the one end that the bayonet socket was kept away from to the handle, works as when reset spring is in natural state, two the two bayonet sockets of handle are closed.

The diameter of the opening at the upper end of the bayonet is larger than the outer diameter of the drill rod and smaller than the outer diameter of the drill rod connector.

The diameter of the bayonet lower end opening is larger than the outer diameter of the drill rod connector, and the upper end opening of the bayonet is in inclined surface transition to the lower end opening of the bayonet.

Wherein, the upper end opening part of bayonet socket is equipped with the brush that is used for cleaning the silt particle on drilling rod surface.

The drill rod clamping and fixing structure further comprises a cover barrel arranged at the top of the sleeve, the calipers are arranged at the top of the cover body, the diameter of an opening at the lower end of the cover barrel is larger than the outer diameter of the sleeve, and the diameter of an opening at the top of the cover barrel is smaller than the outer diameter of the sleeve and larger than the outer diameter of the drill rod connector.

Wherein, the lower part of the cover barrel is connected with the upper surface of the foot support through a connecting piece.

Wherein, the connecting piece is extension spring or iron wire.

The annular buckle comprises two semicircular clamping blocks, one ends of the semicircular clamping blocks are hinged to each other, and the ends, far away from the hinged point, of the two semicircular clamping blocks are detachably connected through a quick release rod.

The casing clamping structure further comprises a base plate detachably arranged below the annular buckle, a through hole is formed in the middle of the base plate, and the inner diameter of the through hole is larger than the hole diameter of the drilled hole.

The utility model has the advantages that:

the utility model discloses a set up casing card solid structure and drilling rod card solid structure, during the use, through locating the sleeve pipe with sleeve pipe annular buckle card on, because annular buckle is provided with the heel brace, and the heel brace keeps away from the one end in the 1 centre of a circle of annular buckle and is greater than the drilling distance to the distance in the annular buckle centre of a circle, makes the heel brace effectively stop annular buckle and sleeve and slide to drilling, avoids the sleeve pipe to drop the condition emergence in the drilling. On the other hand, the utility model discloses a solid structure of drilling rod card is through setting up calliper, and the bayonet socket of calliper can continuously block the drilling rod under reset spring's effect, makes the drilling rod can not the landing downwards to drilling in, when the drilling rod is transferred to needs, only need hold the handle of calliper, makes two handle compression reset spring, and then makes the bayonet socket of calliper open, and the drilling rod can the downstream, when loosening the handle, the bayonet socket of calliper will block the drilling rod under reset spring's effect, makes the drilling rod can not continue the downstream.

To sum up, the utility model discloses can effectively avoid drilling rod and sleeve to drop to drilling in, reduce economic loss.

Drawings

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

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a caliper according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the annular buckle according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a backing plate according to an embodiment of the present invention.

Description of reference numerals: 1. an annular buckle; 2. a foot support; 3. a caliper; 4. a handle; 5. a return spring; 6. a bayonet; 7. covering the barrel; 8. a connecting member; 9. semicircular fixture blocks; 10. a rubber pad; 11. a base plate; 12. perforating; 13. a drill stem; 14. a connector; 15. a sleeve; 16. a quick release rod.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

A device for preventing a casing and a drill rod from sliding off is disclosed, as shown in figures 1-4, and comprises a casing clamping structure and a drill rod clamping structure, the sleeve clamping structure comprises an annular buckle 1 clamped on the outer wall of the sleeve 15 and a foot support 2 fixedly arranged on the annular buckle 1, the distance from one end of the foot support 2 far away from the annular buckle 1 to the circle center of the annular buckle 1 is larger than the radius of the drilled hole, the drill rod clamping and fixing structure comprises a clamp 3 arranged at the top of a sleeve, the clamp 3 comprises two handles 4 and a return spring 5, the middle parts of the handles are mutually hinged, the two handles 4 are symmetrically arranged, one end of each handle 4 is provided with a bayonet 6 used for clamping a drill rod 13, one ends of the two handles 4 far away from the bayonet 6 are respectively connected with two end parts of the return spring 5, when the return spring 5 is in a natural state, the two bayonets 6 of the two handles 4 are closed.

The utility model discloses a set up sleeve pipe card solid structure and drilling rod card solid structure, during the use, through locating sleeve pipe 15 annular buckle 1 card on the sleeve pipe 15, because annular buckle 1 is provided with heel brace 2, and the heel brace 2 keeps away from the one end in the 1 centre of a circle of annular buckle to the distance in the 1 centre of a circle of annular buckle be greater than the drilling distance, make heel brace 2 can effectively block annular buckle 1 and sleeve and slide to drilling, avoid sleeve pipe 15 to drop the condition emergence in the drilling. On the other hand, the utility model discloses a solid structure of drilling rod card is through setting up calliper 3, bayonet socket 6 of calliper 3 can continuously block drilling rod 13 under reset spring 5's effect, make drilling rod 13 can not the landing downwards to drilling in, when drilling rod 13 is transferred to needs, only need hold the handle 4 of calliper 3, make two handle 4 compression reset spring 5, and then bayonet socket 6 that makes calliper 3 opens, drilling rod 13 can the downstream, when loosening handle 4, bayonet socket 6 of calliper 3 will block drilling rod 13 under reset spring 5's effect, make drilling rod 13 can not continue the downstream.

To sum up, the utility model discloses can effectively avoid drilling rod 13 and sleeve to drop to drilling in, reduce economic loss.

Specifically, the two foot supports 2 are symmetrically arranged on two sides of the annular buckle 1 respectively, so that the sleeve clamping structure can stably block the downward sliding of the sleeve 15, and the phenomenon that the sleeve clamping structure is inclined due to uneven stress can be avoided.

Wherein, the diameter of the opening at the upper end of the bayonet 6 is larger than the rod outer diameter of the drill rod 13 and smaller than the outer diameter of the connector 14 of the drill rod 13. The rod part of the drill rod 13 can smoothly pass through the bayonet 6, and the drill rod 13 connector 14 can be clamped above the bayonet 6, so that the drill rod 13 can be prevented from falling off.

In order to lift the drill rod 13 upwards conveniently, the diameter of the opening at the lower end of the bayonet 6 is larger than the outer diameter of the connector 14 of the drill rod 13, and the opening at the upper end of the bayonet 6 is in inclined surface transition to the opening at the lower end of the bayonet 6.

Wherein, the opening at the upper end of the bayonet 6 is provided with a brush (not shown in the figure) for cleaning the mud and sand on the surface of the drill rod 13, so that when the drill rod 13 is lifted upwards, the brush can brush and clean the mud and sand on the surface of the drill rod 13, and the amount of soil attached to the surface of the drill rod 13 is reduced.

The drill rod clamping structure further comprises a cover barrel 7 arranged at the top of the sleeve in a covering mode, the calipers 3 are arranged at the top of the cover body, the diameter of an opening at the lower end of the cover barrel 7 is larger than the outer diameter of the sleeve, and the diameter of an opening at the top of the cover barrel 7 is smaller than the outer diameter of the sleeve and larger than the outer diameter of a drill rod 13 connector 14. Specifically, the caliper 3 may be fixedly connected to the top of the tub 7 by bolts. The arrangement of the cover barrel 7 can increase the contact area between the sleeve 15 and the heavy hammer, and can protect the sleeve 15 when the impact hammer impacts the sleeve 15.

Wherein, the lower part of the cover barrel 7 is connected with the upper surface of the foot support 2 through a connecting piece 8. When the connecting piece 8 is connected with the cover barrel 7 and the foot support 2, the situation that the drill rod clamping structure is driven by the drill rod 13 to move upwards together can be avoided, and the stability of the whole structure is improved.

Wherein, the connecting piece 8 is the extension spring, and the jump ring has certain elasticity, can let cover bucket 7, calliper 3 produce certain horizontal relative movement, automatically regulated when drilling rod 13 is crooked during the construction. In other embodiments, the connector 8 may be a wire.

The annular buckle 1 comprises two semicircular clamping blocks 9, one ends of the semicircular clamping blocks 9 are hinged to each other, and one ends, far away from a hinged point, of the two semicircular clamping blocks 9 are detachably connected through a quick release rod 16. When the quick release buckle is used, the two semicircular clamping blocks 9 are clamped on the sleeve 15, and then the annular buckle 1 can be fixed on the sleeve 15 through locking of the quick release rod 16.

Wherein, in order to increase the friction force between the annular buckle 1 and the sleeve 15, the inner wall of the annular buckle 1 is provided with a rubber pad 10.

The sleeve clamping structure further comprises a base plate 11 detachably arranged below the annular buckle 1, a through hole 12 is formed in the middle of the base plate 11, and the inner diameter of the through hole 12 is larger than the hole diameter of a drilled hole. The 11 pads of backing plate locate the below of annular buckle 1, can support heel brace 2, more be favorable to improving the stability of structure.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. A device for preventing casing and drill pipe from slipping, characterized in that: the casing clamping structure comprises an annular buckle and a foot support, the annular buckle is arranged on the outer wall of a casing in a clamping mode, the foot support is fixedly arranged on the annular buckle, the distance from one end, far away from the annular buckle, of the foot support to the circle center of the annular buckle is larger than the radius of a drilled hole, the drilling rod clamping structure comprises a caliper arranged at the top of a sleeve, the caliper comprises two handles and two reset springs, the middle portions of the two handles are hinged to each other, the handles are symmetrically arranged, each handle is provided with a bayonet used for clamping a drilling rod, the ends, far away from the bayonet, of the two handles are connected with the two ends of each reset spring respectively, and when each reset spring is in a natural state, the two bayonets of the two handles are closed.

2. The device for preventing the sliding of the casing and the drill rod according to claim 1, wherein: the diameter of the opening at the upper end of the bayonet is larger than the outside diameter of the drill rod and smaller than the outside diameter of the drill rod connector.

3. A device for preventing casing and drill pipe from slipping as claimed in claim 2, wherein: the diameter of the bayonet lower end opening is larger than the outer diameter of the drill rod connector, and the upper end opening of the bayonet is in inclined surface transition to the lower end opening of the bayonet.

4. A device for preventing casing and drill pipe from slipping as claimed in claim 2, wherein: and a brush for cleaning mud and sand on the surface of the drill rod is arranged at an opening at the upper end of the bayonet.

5. The device for preventing the sliding of the casing and the drill rod according to claim 1, wherein: the drill rod clamping and fixing structure further comprises a cover barrel arranged at the top of the sleeve, the calipers are arranged at the top of the cover body, the diameter of an opening at the lower end of the cover barrel is larger than the outer diameter of the sleeve, and the diameter of an opening at the top of the cover barrel is smaller than the outer diameter of the sleeve and larger than the outer diameter of the drill rod connector.

6. An apparatus for preventing casing and drill pipe from slipping down according to claim 5, wherein: the lower part of the cover barrel is connected with the upper surface of the foot support through a connecting piece.

7. An apparatus for preventing casing and drill pipe from slipping down according to claim 6, wherein: the connecting piece is a tension spring or an iron wire.

8. The device for preventing the sliding of the casing and the drill rod according to claim 1, wherein: the annular buckle comprises two semicircular clamping blocks with one ends hinged to each other, and the ends, far away from the hinged point, of the two semicircular clamping blocks are detachably connected through the quick release rod.

9. The device for preventing the sliding of the casing and the drill rod according to claim 1, wherein: the sleeve clamping structure further comprises a base plate detachably arranged below the annular buckle, a through hole is formed in the middle of the base plate, and the inner diameter of the through hole is larger than the hole diameter of the drilled hole.