CN219622667U

CN219622667U - Hole packer and hole sealing device

Info

Publication number: CN219622667U
Application number: CN202320707279.1U
Authority: CN
Inventors: 覃乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-09-01
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a hole packer and a hole packer device, wherein the hole packer comprises a medicament hole packer and a bag-type medicament hole packer, the medicament hole packer comprises a reaction cylinder with an annular cylindrical structure, at least one slurry explosion hole which is temporarily sealed is arranged on the reaction cylinder, the hole packer further comprises a medicament cylinder with a half-moon cylindrical structure, and the two medicament cylinders are respectively communicated with the reaction cylinder through a simple valve with a tubular valve body; the bag-type medicament hole packer consists of a medicament hole packer and bag cloth; the hole sealing device comprises a quick hole sealing device and two plugging and one hole injecting devices, wherein the quick hole sealing device comprises a medicament hole packer or a bag hole packer; the two-block one-injection hole sealing device comprises a bag hole packer with a return pipe. The utility model has the beneficial effects that the medicament hole packer does not need to be filled with medicaments on site, thereby reducing the workload on site and being beneficial to improving the hole sealing efficiency. The bag-type medicament hole packer, the quick hole sealing and the two-blocking-one hole sealing device have the characteristics of small site workload and high hole sealing efficiency of the medicament hole packer.

Description

Hole packer and hole sealing device

Technical Field

The utility model relates to a hole sealing facility for coal mine gas extraction, in particular to a hole packer and a hole sealing device.

Background

In the hole sealing process before coal mine gas extraction, the existing hole sealing modes mainly comprise filter accumulation type bag hole sealing and self-expansion medicament type hole sealing. The traditional bag type grouting hole sealing is that firstly grouting is carried out in a bag, after grouting pressure reaches a set value, a valve plate of a blasting valve is broken, and cement slurry is poured between two bags to form a cement slurry hole sealing section, so that the device has a good hole sealing effect and is suitable for hole sealing before coal seam gas extraction with larger caliber and higher gas pressure. However, the hole sealing of the filter-accumulating type bag has the defects that firstly, the hole sealing of the hole sealer is not tight and the air leakage is easy. Because the hole packer bag and the guide pipe are not positioned radially, the guide pipe is easy to droop and directly contact with the hole wall, so that slurry mud around the guide pipe is not filled fully, and gaps and air leakage occur to influence the hole sealing quality; meanwhile, as the front and rear bags are connected by the grouting pipe, gaps are easily left between the grouting pipe and the honeycomb duct and the hole wall after grouting to influence the hole sealing quality; secondly, the hole packer has more installation procedures, complex operation and low hole sealing speed; because of the structure of the hole packer, each hole packer needs to be bound and fixed on the flow guide pipe by iron wires, and then the hole packer is sent into the hole for grouting and sealing, so that the hole packer has many hole sealing procedures and low hole sealing speed; thirdly, the universality is poor, because both ends of the hole packer are filled and plugged by adopting bags, and the bags are filled and need to be filled by grouting pipes to transmit slurry, the hole sealing depth of underground extraction drilling holes is inconsistent, and the length of the grouting pipes is also inconsistent, so that the hole packer needs to be customized according to the unexpired length of the extraction drilling holes. The self-expanding medicament type hole sealing is usually carried out by adopting a mining polyurethane hole sealing agent, and liquid raw materials of the AB two components are mixed to generate a polymerization reaction, so that a solid reinforcing filler is formed to seal a drilled hole. Different reaction speeds can be obtained by adjusting the proportion of the A, B medicaments, and the plugging time is correspondingly changed. Because the raw materials A and B have lower viscosity, the raw materials A and B can permeate into small cracks of the rock mass to foam, so that the rock mass is bonded and reinforced, and the raw materials A and B can not only independently form a hole sealing section, but also form two plugs in 'two plugs and one injection'. When the self-expansion medicament is used for 'two-blocking one-injection', the existing hole sealing method is that firstly, two ends of a hole sealing section are blocked by bagged polyurethane, after the foaming hole sealing bags are expanded and condensed, grouting is carried out on a drilling section between the two hole sealing sections through a grouting pipe, and under the action of grouting pressure, grout permeates into the wall of the drilling hole and fills cracks around the drilling hole, so that the hole sealing section is formed. The grouting pipe in the hole sealing mode only needs to pass through the hole opening end bag, does not need to extend into the hole bottom bag, is short in the part of the grouting pipe located at the hole sealing section, is light in weight, can effectively reduce the problem of hole sealing gaps caused by the fact that the grouting pipe passes through the hole sealing section in the traditional filter-accumulation type bag hole sealing, and can be used for grouting by the grouting pipe with the same length regardless of the change of the length of the hole sealing section, and does not need to be customized.

Chinese patent publication No. CN203685105U discloses a rapid hole sealing device, which comprises a hole sealing bag and a bag coated on the periphery of the hole sealing bag. When the hole sealing device is used for sealing holes, the reactive polymer slurry is limited in the bag by the bag, so that the filling compactness of the reactive polymer is improved, and a good sealing effect is achieved. However, when the sealing system is used for constructing a 'two-plug one-injection', a grouting pipe and a slurry return pipe need to be arranged on a device for constructing two plugs in a penetrating way, and the grouting pipe and the slurry return pipe can only be fixed by virtue of a bag. However, because the hole sealing device adopts a soft inner and outer layer bag-shaped structure, the soft bag can not well control the radial positions of the grouting pipe and the slurry return pipe, and when the hole sealing device is used for a near-horizontal hole, the flow guide pipe, the grouting pipe and the slurry return pipe fall down or incline under the action of gravity, so that part of pipe sections are contacted with the wall of a drilling hole, slurry permeation is hindered, and the sealing effect of the hole sealing section is affected.

The invention discloses a quick hole sealing device and a hole sealing method, wherein the quick hole sealing device discloses a medicament barrel which is formed by blow molding and has certain structural strength and rigidity. If when two plugs are formed by using the medicament cylinder mode, the grouting pipe and the slurry returning pipe can be well fixed by means of the strength and the rigidity of the medicament cylinder, the deflection of the grouting pipe and the slurry returning pipe can be prevented, the contact with the wall of a drilling hole is avoided, and the sealing effect of the plugging section is effectively improved. However, when the hole sealing device is used, the medicament is required to be independently conveyed to the site for medicament filling, the site workload is large, and the hole sealing efficiency is low. Meanwhile, as the sealing devices at the two ends of the hole sealing section adopt soft windings, the sealing devices have no water blocking effect, and when the upward hole with crevice water is plugged, the crevice water in the hole sealing section influences the foaming effect of the medicament polymerization reaction. In addition, the hole sealing pipe is centered by means of soft windings, so that eccentric hidden danger exists, and the plugging effect is influenced to a certain extent. For this reason, continued improvement is desired.

Disclosure of Invention

The utility model aims to overcome the defects of large field workload and low hole sealing efficiency caused by the fact that a medicine filling agent is required to be filled on site in the existing rapid hole sealing technology, and provides a medicine hole packer which is used for controlling the on-off of a reaction cylinder and two independent medicine cylinders by using a simple valve so as to pre-fill medicines in advance through the medicine cylinders, and the two medicines are uniformly mixed in the reaction cylinder only by opening the valve on site without carrying out field medicine filling, so that the field workload is reduced and the hole sealing efficiency is improved. The second object of the present utility model is to provide a bag-type agent hole packer, in which the reactive polymer slurry is limited in the bag by arranging the bag cloth, so as to improve the packing compactness of the reactive polymer, and to improve the plugging effect. The third object of the present utility model is to provide a rapid hole sealing device, which is composed of a medicament hole packer or a bag-type medicament hole packer, forms a rapid hole sealing structure by using medicament hole sealing, and has the characteristics of the medicament hole packer. When the method is used for plugging the upward hole with the water in the fissure, in the scheme that the bag-type medicament hole packer is adopted at the bottom section of the drilled hole, the mode of plugging the hole sequentially from inside to outside is formed by adjusting the medicament proportion, so that the water blocking effect of the inner-end bag is utilized, and the condition that the outer-end reaction polymer is not influenced by the water in the fissure at the inner end of the drilled hole is ensured. The fourth object of the utility model is to provide a two-plug one-injection hole sealing device, which forms an inner end sealing section of two plugs by using a bag-type medicament hole packer and has the characteristic of the medicament hole packer, and can ensure that an outer end reaction polymer is not influenced by crack water at the inner end of a drilling hole when a upward hole with crack water is plugged. The fifth object of the present utility model is to provide a centering member for centering a flow guiding pipe when a hole sealing device is placed in a hole to be sealed, so as to reduce or eliminate the eccentric problem of the flow guiding pipe, and further improve the hole sealing effect.

In order to achieve the first object, the present utility model adopts the following technical scheme.

The utility model provides a medicament hole packer, includes the reaction section of thick bamboo of annular tubular structure, is equipped with at least one of interim confined and explodes thick liquid hole on the reaction section of thick bamboo, still includes half moon shape tubular structure's medicament section of thick bamboo, two medicament section of thick bamboo respectively through a simple and easy valve that has the tubular valve body with the reaction section of thick bamboo intercommunication.

By adopting the hole packer of the technical scheme, the reaction cylinder and the two independent medicament cylinders are arranged, and the medicament cylinders are controlled to be connected with the reaction cylinder through the simple valve so as to be filled with medicaments in the medicament cylinders in advance, and the two medicaments are mixed in the reaction cylinder only by opening the valve on site, so that the on-site filling of the medicaments is not needed, the on-site workload is reduced, and the hole packer is beneficial to improving the hole sealing efficiency. When the device is used, after two medicaments in the reaction cylinder are uniformly mixed, chemical reaction is carried out to generate foam slurry, the temporary closed plugging member is punched through the slurry explosion hole and then is diffused outwards, and a hole sealing section is formed after solidification. Wherein, in view of the fact that such products are disposable, the reaction cartridge, medicament cartridge and valve can be generally made of plastic materials, which can reduce manufacturing and use costs. The simple valve adopts a simple structure, and can meet the requirements of disposable cut-off and communication functions. In addition, the cartridge may be pre-filled with medicament through its interface with the valve and sealed with the valve. In the scheme of pre-injecting the medicament by utilizing the interface of the medicament barrel which is connected with the valve, the medicament flows into the reaction barrel, the medicament barrel is extruded to accelerate the flow speed, and after extrusion is finished, the valve is closed, so that the defect that the medicament flow is influenced by negative pressure formed by the outflow of the medicament barrel is overcome.

Preferably, the reaction cylinder comprises a circular cylinder body with holes in the middle parts of two end walls, connecting pipes are arranged in the circular cylinder body in a penetrating manner through the holes in the middle parts of the two end walls, the connecting pipes are in liquid-tight connection with the reaction cylinder body, and the reaction cylinder forms an annular cylinder structure through the connecting pipes. The reaction cylinder with the annular structure is formed in a penetrating mode of the connecting pipe, so that the forming difficulty of the annular cylindrical structure of the reaction cylinder is reduced, and the manufacturing and using costs are low. Wherein, the connecting pipe is preferably made of PVC plastic pipe. When the drainage pipe is used, the drainage pipe can be arranged in the connecting pipe in a penetrating way, and the connecting pipe can be connected with the drainage pipe in series, so that the connecting pipe forms a part of the drainage pipe.

Further preferably, the connection tube has a first extension section extending to the cartridge, through which the cartridge is fixedly connected with the connection tube. The medicament cylinder is fixed by the connecting pipe, so that the connection strength of the medicament cylinder and the reaction cylinder is enhanced, and the damage probability in the transportation process is reduced.

Further preferably, the slurry explosion hole is arranged on the bottom wall or the side wall of the other end of the round cylinder body far away from the simple valve. So as to avoid the obstruction of the medicament barrel to the rapid diffusion of the reaction polymer slurry and ensure the sealing effect.

Preferably, at least one of the medicament cartridge and the reaction cartridge is provided with a pipe joint connected with the simple valve, and at most one pipe joint is provided with a threaded interface; one end of the simple valve is directly and fixedly connected with the reaction cylinder or the medicament cylinder in a liquid sealing way; the other end of the reaction tube is fixedly connected with the corresponding medicament tube or the corresponding reaction tube in a liquid-tight manner through a tube joint; or, two ends of the simple valve are fixedly connected with the reaction cylinder and the medicament cylinder in a liquid sealing way through corresponding pipe joints respectively; in the structure that the pipe joint is provided with a threaded interface, the simple valve is screwed with the threaded interface of the pipe joint to form liquid sealing connection with the reaction cylinder or the medicament cylinder; in the structure that the pipe joint is not provided with a threaded interface, the simple valve is fixedly connected with the corresponding medicament cylinder or the corresponding reaction cylinder in a liquid-tight manner through the pipe joint without the threaded interface by means of tight fit or hot-melt welding matched with a column hole; in the structure that the simple valve is directly connected with the reaction cylinder or the medicament cylinder, the simple valve and the reaction cylinder or the medicament cylinder are in liquid sealing fixed connection by means of tight fit or hot melt welding of column hole fit. So as to form various structural types and be convenient to select according to actual needs. The simple valve can form a reliable connection relationship with the reaction cylinder or the medicament cylinder by utilizing the pipe joint, and can form detachable screwed sealing connection with the reaction cylinder or the medicament cylinder by utilizing the threaded interface; the liquid sealing and fixed connection can also be formed between the reaction cylinder or the medicament cylinder by utilizing the tight fit or the hot melt welding of the column hole fit.

Preferably, the medicament cylinder is provided with a medicament injection port with a blocking member, and the medicament injection port is coaxial with the simple valve; the simple valve comprises an elastic sealing plug arranged in the tubular valve body; or in the structure that one pipe joint is provided with a threaded interface, the simple valve further comprises a breakable sealing pad arranged in the tubular valve body, the breakable sealing pad is tightly pressed by means of the threaded matching structure of the pipe joint, and the breakable sealing pad is alternatively arranged with the elastic sealing plug. Through setting up the medicament filling mouth alone and pouring the medicament, then, rethread shutoff member shutoff is sealed, compares with utilizing the valve interface filling, can improve tubular convenience. Simultaneously, when the valve is opened at the hole sealing construction site, the plugging member is taken down, and the medicament can be accelerated to flow into the reaction cylinder by utilizing the atmospheric pressure. When the on-off of the simple valve is controlled by the elastic sealing plug or the breakable sealing pad, the rod type tool can be inserted into the reaction cylinder through the medicament injection port, or the breakable sealing pad can be poked. The elastic sealing plug can be made of rubber, cork and the like, and the maximum diagonal dimension of the free state of the elastic sealing plug is smaller than or close to the aperture of the slurry explosion hole, so that the slurry explosion hole is prevented from being blocked, and the timely outward diffusion of the reaction polymer is delayed; the breakable sealing pad can be formed by compositing or covering a gasket or a gasket of a paperboard or an asbestos board with a plastic film or tinfoil paper, so that the breakable property of the film or the tinfoil paper, the paperboard or the asbestos is utilized to obtain the disposable valve with a simple structure. Obviously, in the structure with the threaded interface, a breakable sealing pad can be selected, and a simple valve can be formed by the elastic sealing plug and the tubular valve body.

Further preferably, the medicine cartridge is provided with a medicine injection nozzle, and an orifice of the medicine injection nozzle forms the medicine injection port; the blocking member is constituted by a screw cap or a screw tap. The protruding pipe joint structure is formed by the medicine injection nozzle, and the sealing cover with the spiral structure is more conveniently arranged by the protruding pipe part, so that the reliability of the sealing cover is improved.

Preferably, the middle part of the tubular valve body of the simple valve is transversely provided with a valve core, the valve core is in liquid-tight connection with the tubular valve body, and the valve core is provided with a valve hole communicated with pipe holes at two ends of the tubular valve body. The valve with a simple structure can be made of plastic, and the sealing surface can be filled with butter to compensate the influence of poor processing precision on the tightness, so that the manufacturing and using cost is reduced. The matching structure of the valve core and the column hole of the tubular valve body can be cylindrical or conical.

Preferably, a space for penetrating the grouting pipe and the reflux pipe is arranged between the inner annular pipe wall and the outer annular pipe wall at the two ends of the reaction cylinder; and an avoiding space for avoiding the grouting pipe is reserved between the two medicament cylinders. So as to avoid the grouting pipe by means of the avoiding space, and lay a foundation for constructing the bag hole packer.

In order to achieve the second object, the present utility model has the following technical scheme.

The bag-type medicament hole packer comprises a medicament hole packer and a bag cloth, wherein the medicament hole packer is composed of the medicament hole packer for realizing the first purpose; wherein the first extension section of the connecting tube is also provided with a part extending out of the medicament cylinder, and the connecting tube is also provided with a second extension section extending out of the reaction cylinder; one end of the bag cloth is fixed on the second extension section in a surrounding manner, and the other end of the bag cloth is fixed on the end part of the reaction cylinder, which is close to the medicament cylinder in a surrounding manner.

The bag-type medicament hole packer adopting the scheme utilizes the bag cloth to limit the reaction polymer slurry in the space surrounded by the bag cloth, improves the compactness of the hole-sealing filler and obtains better hole-sealing effect. The device has the characteristics of small site workload of the medicament hole packer and high hole sealing efficiency. The water blocking effect of the bag plugging section can be utilized, and when the upward hole with the fracture water is plugged, the fracture water outside the hole plugging section is isolated outside the bag plugging section. Specifically, when the device is used for plugging a upward hole with water in a crack, the bottom section of the hole is provided with the bag-type medicament hole packer, and a sequential plugging mode from inside to outside is formed by adjusting medicament proportion, so that the water blocking effect of the bag at the inner end is utilized, and the reaction polymer at the outer end is ensured not to be influenced by the water in the crack at the inner end of the hole.

Preferably, the medicament hole packer is formed by a medicament hole packer reserved with a grouting pipe and a backflow pipe setting space; the device also comprises an annular tube seat, wherein the annular tube seat is fixed on the second extension section, a return tube is arranged on the annular tube seat, and the return tube sequentially passes through two ends of the reaction tube; one end of the bag cloth is fixed on the annular tube seat in a surrounding manner, and the other end of the bag cloth is fixed on the end part of the reaction tube, which is close to the medicament tube, in a surrounding manner. The reserved space is used for setting a return pipe so as to be used as a hole packer at the inner end of a drilled hole when the hole packer for sealing the medicament hole is formed and is used for plugging a upward hole with crevice water. And after the plugging section is formed at first by adjusting the medicament proportion, the water in the gap outside the hole sealing section is isolated outside the plugging section by utilizing the bag, meanwhile, the water and air which are discharged from the drill hole in the post plugging process are discharged by utilizing the return pipe, so that the size and the quantity of air holes formed after the reaction polymer in the hole sealing section is solidified can be reduced, the influence of the water on the solidification performance of the reaction polymer slurry is reduced, the solidification effect is ensured, and the plugging effect is further improved.

Preferably, the device further comprises a grouting pipe, wherein the grouting pipe is also arranged on the annular pipe seat, the grouting pipe sequentially penetrates through two ends of the reaction cylinder, and the grouting pipe extends out of the medicament cylinder through the avoidance space. And a grouting pipe is arranged through a reserved space, grouting is performed to the hole sealing section in the middle by using the grouting pipe, and the backflow condition is observed by using a backflow pipe, so that the grouting process is judged. Typically used as a plugging pouch in a two-plug one-injection plugging device in the direction of the orifice, thereby forming a plugged segment in one of the two plugs.

In order to achieve the third object, the present utility model adopts the following technical scheme.

The rapid hole sealing device comprises a flow guiding pipe, wherein at least two hole sealing devices are connected in series on the flow guiding pipe; at least one hole packer is composed of a medicament hole packer for realizing the first purpose; or at least one hole packer is composed of a bag-type medicament hole packer which does not contain a grouting pipe or neither a grouting pipe nor a return pipe in the second purpose.

By adopting the rapid hole sealing device of the technical scheme, the drug hole packer and the bag-type drug hole packer only containing the bag are arranged on the flow guide pipe to form a hole sealing structure which is sealed after the foaming expansion of the reaction polymer, so that the rapid hole sealing device is formed, and the rapid hole sealing device has the characteristics of less field workload of the drug hole packer and high hole sealing efficiency. The bag-type medicament hole packer which is not contained in the grouting pipe and the backflow pipe is only provided with a bag cloth compared with the medicament hole packer; the bag-type medicament hole packer only does not contain a grouting pipe, and compared with the medicament hole packer, the bag-type medicament hole packer is provided with a bag cloth and a return pipe, wherein the return pipe is used for discharging water and air in a hole-facing drilling hole with crevice water when the rear plugging section is filled with reaction polymer.

Preferably, all the hole sealers are composed of medicament hole sealers for realizing the first purpose; the hole packer outer end located in the direction of the hole opening of the extraction drilling hole and the hole packer inner end located in the direction of the hole bottom of the extraction drilling hole are sleeved with elastic hole plugs. The elastic hole plugs at the two ends are used for limiting the diffusion range of the reaction polymer, and in the limited range, the medicament is used for reacting, expanding and solidifying to form a medicament hole sealing section, so that the structure is simple, the hole sealing efficiency is high, and the hole sealing cost is low.

Preferably, all hole sealers are composed of bag-type medicament hole sealers which are not contained in the grouting pipe and the backflow pipe; or only the bag-type medicament hole packer without the grouting pipe. The bag is used for limiting the foaming expansion space of the medicament reaction polymer, and an elastic hole plug is not required to be arranged, so that the workload of site construction can be further reduced; meanwhile, in the scheme provided with the return pipe, the return pipe is used for discharging water and air in the upward hole drilling hole with the crevice water when the rear plugging section plugging material is filled.

Preferably, the flow guide pipe is also provided with a plurality of centering components, and each centering component comprises a centering sleeve and a plurality of elastic claws which extend outwards from the same side of the centering sleeve and are uniformly distributed on the circumference; the two ends of the centering sleeve of the centering component are respectively provided with an axial positioning sleeve fixedly connected to the flow guide pipe, and a movement space for the flow guide pipe to axially reciprocate is arranged between the two axial positioning sleeves. The plurality of elastic claws uniformly distributed on the circumference of the centering component are utilized to limit the axial center position of the flow guide pipe, so that gaps between the peripheral wall of the flow guide pipe and the inner wall of the drill hole are uniformly distributed in the circumferential direction, the wall thickness of a cylindrical plugging material formed after foaming and expanding of the reaction polymer is uniform, the reagent can be fully utilized, and the sealing effect is effectively improved. The elastic claw extends outwards from the same side to enable the centering component to form a unidirectional movement structure, after the elastic claw is sent into a set position of the extraction drilling hole along with the guide pipe, the elastic claw is supported on the hole wall and is used for limiting the outward extraction distance of the guide pipe under the combined action of the axial positioning sleeve, and the elastic force of the centering component can prevent the guide pipe from being pushed inwards in a certain force range. The centering member and the axial positioning sleeve are used for both generally limiting the axial distance of the draft tube pumping wobble when the medicaments are mixed and for determining the hole sealing position.

In the scheme that the bag hole packer is provided with the annular tube seat, a grouting tube and a return tube can be arranged through the annular tube seat, so that grouting can be performed by using the grouting tube, the return tube returns slurry or exhausts gas, and the return slurry is suitable for hole sealing in a two-plug one-injection cement slurry filling mode; the exhaust is used for discharging the air in the space to be plugged by foaming and extruding the reacted polymer when the hole is sealed rapidly, and in order to avoid the discharge of the reacted polymer from the return pipe by foaming, a pipe plug is arranged in the pipe hole of the return pipe, and a small hole which can only be discharged is formed in the pipe plug. Simultaneously, through setting up slip casting pipe and reflux pipe through the plastics material reaction section of thick bamboo that has certain intensity and rigidity, can greatly improve slip casting pipe and reflux pipe appear crookedly under the action of gravity, lead to the poor problem of sealed effect that arouses with borehole pore wall contact, do benefit to the promotion sealed effect.

In order to achieve the fourth object, the present utility model provides the following technical solutions.

The two-plug one-hole sealing device comprises a flow guide pipe, wherein two hole sealing devices are connected in series on the flow guide pipe; the hole packer positioned in the bottom direction of the extraction drilling hole is composed of a bag-type medicament hole packer which does not contain a grouting pipe; the hole packer positioned in the direction of the hole opening of the extraction drilling hole consists of a bag-type medicament hole packer comprising a grouting pipe and a backflow pipe; or the hole packer positioned in the direction of the hole opening of the drill hole is formed by a cement slurry grouting type bag hole packer; or the hole packer positioned in the direction of the hole opening of the extraction drilling hole consists of a medicament hole packer for realizing the first purpose and an elastic hole plug positioned at the outer side of the medicament hole packer; the grouting bag hole packer is provided with a grouting pipe and a backflow pipe; in the structure that the two hole sealers are both provided with the return pipes, one of the two return pipes is used, and the pipe orifice of the other return pipe is blocked.

By adopting the technical scheme, the two-plug one-injection hole sealing device has three structural types, wherein the structural type one is a structure for sealing holes by external cement slurry of a double-medicament hole sealing bag; the structure II is that an inner medicament hole sealing bag and an outer traditional cement grouting bag are combined to form an outer cement grouting hole sealing structure; and thirdly, the structure of sealing the hole by the inner medicament hole sealing bag and the outer elastic hole plug and realizing the hole sealing of the inner injection based on the medicament hole sealing device. The three structures all utilize the characteristics of small site workload and high hole sealing efficiency of the medicament hole packer of the inner side bag. Under the two structural types of the first structural type and the second structural type, when the drilling is a upward hole, the backflow pipe on the inner hole packer is used for observing the backflow condition, and the backflow pipe on the outer hole packer is blocked. When the drilling is a pilot hole, the return pipe on the outer end hole packer is used for observing the slurry returning condition, and the return pipe on the inner end hole packer is blocked. Under the third structural mode, the medicament in the inner hole packer reacts with the medicament in the inner hole packer by adjusting the proportion of the medicament, so that a blocking section is formed by the inner hole packer firstly, and then the medicament in the medicament hole packer reacts to form the inner hole packer section. When the plugging device is used for plugging a upward hole with water in a crack, after a plugging section is formed at the inner end, the water in the crack outside the hole sealing section is isolated outside the plugging section of the bag by utilizing the bag, meanwhile, water and air which are extruded from a drill hole in the post-reaction polymerization foaming process are discharged by utilizing the return pipe, so that the size and the number of air holes formed after the reaction polymer in the hole sealing section is solidified can be reduced, the influence of the water on the solidification performance of the reaction polymer slurry is reduced, the solidification effect is ensured, and the plugging effect is further improved. When the depression hole with the fissured water is plugged, after a plugging section is formed at the inner end, a small amount of accumulated water of the fissured water caused by air and a bag which are extruded from a drill hole in the post-reaction polymerization foaming process is discharged by a return pipe. Wherein, the pore diameter of the return pipe is preferably controlled within 1mm, a blocking member can be fixedly arranged at one end of a pipe with a slightly larger pore diameter, and a small hole with the diameter of within 1mm is arranged on the blocking member for exhausting or draining, so that the leakage of the reaction polymer slurry from the return pipe is avoided after exhausting or draining, and the blocking effect is influenced. Of course, the value of 1mm of the diameter of the pipe hole can be properly adjusted according to practical conditions. In addition, the first structure type is a hole sealing structure formed by using medicament hole sealing, and belongs to a typical two-plug one-injection plugging mode; the second structure type is a structure type combining the medicament hole sealing and the cement bag hole sealing, so that the rapidity of the medicament hole sealing and the low cost characteristic of the cement bag can be reduced, the efficiency can be improved to a certain extent, and the hole sealing cost can be properly reduced. And the structure type III utilizes the medicament bag and the elastic sealing sleeve to form two plugs, and utilizes the inner injection hole sealing material of the medicament hole sealing device, so that the operation is convenient, and the hole sealing efficiency is high.

Preferably, the flow guide pipe is also provided with a plurality of centering components, and each centering component comprises a centering sleeve and a plurality of elastic claws which extend outwards from the same side of the centering sleeve and are uniformly distributed on the circumference; the two ends of the centering sleeve of the centering component are respectively provided with an axial positioning sleeve fixedly connected to the flow guide pipe, and a movement space for the flow guide pipe to axially reciprocate is arranged between the two axial positioning sleeves. The elastic claw extends outwards from the same side to enable the centering component to form a unidirectional movement structure, after the elastic claw is sent into a set position of the extraction drilling hole along with the guide pipe, the elastic claw is supported on the hole wall and is used for limiting the outward extraction distance of the guide pipe under the combined action of the axial positioning sleeve, and the elastic force of the centering component can prevent the guide pipe from being pushed inwards in a certain force range. The centering member and the axial positioning sleeve are used for both generally limiting the axial distance of the draft tube pumping wobble when the medicaments are mixed and for determining the hole sealing position.

In order to achieve the fifth object, the present utility model provides the following technical solutions.

A centering member for centering the flow-guide tube when the hole-sealing devices for the third and fourth purposes are placed in the hole to be sealed; comprises a centering sleeve and a plurality of elastic claws which extend outwards from the same side of the centering sleeve and are circumferentially and uniformly distributed; wherein the resilient fingers comprise a radial extension and an axial extension.

The centering component adopts the scheme, the definition of the axial center position of the flow guide pipe is realized by utilizing the plurality of elastic claws uniformly distributed on the circumference, so that the gaps between the peripheral wall of the flow guide pipe and the inner wall of the drill hole are uniformly distributed in the circumferential direction, the uniform wall thickness of the cylindrical plugging material formed after foaming and expanding the reaction polymer is ensured, the full utilization of the medicament can be ensured, and the sealing effect is effectively improved. The elastic claw extends outwards from the same side to enable the centering component to form a unidirectional movement structure, after the elastic claw is sent into a set position of the extraction drilling hole along with the guide pipe, the elastic claw is supported on the hole wall and is used for limiting the outward extraction distance of the guide pipe under the combined action of the axial positioning sleeve, and the elastic force of the centering component can prevent the guide pipe from being pushed inwards in a certain force range. The centering member and the axial positioning sleeve are used for both generally limiting the axial distance of the draft tube pumping wobble when the medicaments are mixed and for determining the hole sealing position.

Wherein, the radial extension and axial extension of the elastic claw mean that the elastic claw extends obliquely outwards, and the size of the elastic claw increases along with the radial extension. The extending mode comprises linear extending and curve extending, and the curve extending outwards extends according to the curve of the parabolic ascending section.

The utility model has the beneficial effects that the medicament hole packer is connected with the reaction cylinder through the simple valve by arranging two independent medicament cylinders so as to pre-fill medicaments through the medicament cylinders, and the two medicaments are mixed in the reaction cylinder only by opening the valve on site without filling the medicament on site, thereby reducing the site workload and being beneficial to improving the hole sealing efficiency. The bag-type medicament hole packer, the quick hole packer and the two-plug one-injection hole packer all have the characteristics of small site workload and high hole sealing efficiency of the medicament hole packer.

Drawings

Fig. 1 is a schematic view of a pharmaceutical packer according to embodiment 1 of the present utility model.

Fig. 2 is an enlarged view of part a of fig. 1 in accordance with the present utility model.

Fig. 3 is a cross-sectional view A-A of fig. 1 in accordance with the present utility model.

Fig. 4 is a cross-sectional view of the B-B of fig. 1 in accordance with the present utility model.

Fig. 5 is a schematic view of a part of the structure of a drug hole sealer according to embodiment 2 of the present utility model.

Fig. 6 is a schematic view of a part of the structure of a drug hole sealer according to embodiment 3 of the present utility model.

Fig. 7 is a schematic view of a reaction cartridge in a state of being mounted in a drug hole sealer according to embodiment 4 of the utility model in a transverse cross-section.

Fig. 8 is a schematic view of a cartridge in a mounted state in a cartridge sealer according to embodiment 4 of the utility model in a transverse cross-section.

Fig. 9 is a schematic diagram of a bag-type medicament hole packer according to embodiment 5 of the present utility model.

Fig. 10 is a schematic diagram of a bag-type medicament hole packer according to embodiment 6 of the present utility model.

Fig. 11 is a partial enlarged view of the portion B in fig. 10 according to the present utility model.

Fig. 12 is a schematic diagram of a bag-type medicament hole packer according to embodiment 7 of the present utility model.

Fig. 13 is an enlarged view of part C of fig. 12 in accordance with the present utility model.

Fig. 14 is a cross-sectional view of fig. 12 according to the present utility model.

Fig. 15 is a D-D cross-sectional view of fig. 12 in accordance with the present utility model.

Fig. 16 is a schematic view showing the construction of a rapid hole sealing apparatus according to example 8 of the present utility model.

Fig. 17 is a schematic view showing the construction of a rapid hole sealing device according to example 9 of the present utility model.

Fig. 18 is a schematic structural diagram of a two-block one-injection hole sealing device according to embodiment 10 of the present utility model.

Fig. 19 is a schematic structural diagram of a two-block one-injection hole sealing device in embodiment 11 of the present utility model.

Fig. 20 is a schematic view of a part of the structure of embodiment 11 in the present utility model.

FIG. 21 is a schematic view of a two-block one-injection hole sealing device according to embodiment 12 of the present utility model.

Fig. 22 is a schematic structural view of a centering member in the hole sealing device of the present utility model.

Fig. 23 is a top view of fig. 22 of the present utility model.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, which are not intended to limit the scope of the utility model to the embodiments.

Referring to fig. 1, 2, 3 and 4, a medicament hole packer comprises a reaction cylinder 1 with an annular cylindrical structure, wherein at least one slurry explosion hole 1a which is temporarily sealed is arranged on the reaction cylinder 1, and the medicament hole packer further comprises a medicament cylinder 2 with a half-moon-shaped cylindrical structure, wherein the two medicament cylinders 2 are respectively communicated with the reaction cylinder 1 through a simple valve 3 with a tubular valve body 3 a.

Wherein, the reaction cylinder 1, the medicament cylinder and the simple valve are all mainly made of plastic materials; the slurry explosion holes 1a are arranged on the side wall of the other end of the round cylinder far away from the simple valve 3, and at least two slurry explosion holes 1a are uniformly distributed in the circumferential direction of the cylinder wall of the reaction cylinder 1; the slurry explosion hole 1a is temporarily closed by an adhesive film 1b stuck on the outer side of the orifice; the interface of the medicament cylinder 2 and the simple valve forms a medicament pre-injection port.

The reaction cylinder 1 comprises a round cylinder body with holes in the middle parts of two end walls, a connecting pipe 4 is penetrated through the holes in the middle parts of the two end walls of the round cylinder body, and the reaction cylinder 1 forms an annular cylinder structure through the connecting pipe 4; the connection pipe 4 is made of PVC plastic pipe. The connecting tube 4 has a first extension section extending to the medicament cartridge 2, through which the medicament cartridge 2 is fixedly connected to the connecting tube 4. The fixed connection mode comprises the fixed connection modes of bonding, hot-melt welding, hoop binding or ribbon binding and the like; the anchor ear is mainly formed by fixedly connecting two semicircular anchor ear petals together through screws; the binding belt comprises a binding belt with nylon sticking buckles, and can also be a self-locking nylon binding belt similar to that used for binding wire harnesses.

The middle part of a tubular valve body 3a of the simple valve 3 is transversely provided with a valve core 3b, the valve core 3b is in liquid-tight connection with the tubular valve body 3a, and the valve core 3b is provided with a valve hole communicated with pipe holes at two ends of the tubular valve body 3 a.

In addition, at least one of the medicament cartridge 2 and the reaction cartridge 1 is provided with a pipe joint 5 connected with the simple valve 3, and at most one pipe joint 5 is provided with a threaded interface; the tube connector 5 may be provided on the reaction tube 1 or the medicine tube 2, or the tube connectors 5 may be provided on both the reaction tube 1 and the medicine tube 2, and the screw interface may be provided on only one tube connector 5, for example, on the tube connector 5 of either one of the reaction tube 1 and the medicine tube 2. One end of the simple valve 3 is directly and fixedly connected with the reaction cylinder 1 or the medicament cylinder 2 in a liquid sealing way; the other end is fixedly connected with the corresponding medicament cylinder 2 or the corresponding reaction cylinder 1 in a liquid-tight manner through a pipe joint 5; or, two ends of the simple valve 3 are fixedly connected with the reaction cylinder 1 and the medicament cylinder 2 in a liquid sealing way through corresponding pipe joints 5 respectively; in the structure that the pipe joint 5 is provided with a threaded interface, the simple valve 3 is screwed with the threaded interface of the pipe joint 5 to form liquid sealing connection with the reaction cylinder 1 or the medicament cylinder 2; in the structure that the pipe joint 5 is not provided with a threaded interface, the simple valve 3 is fixedly connected with the corresponding medicament cylinder 2 or the corresponding reaction cylinder 1 in a liquid-tight manner through the pipe joint 5 without the threaded interface by means of tight fit or hot-melt welding matched with a column hole; in the structure that the simple valve 3 is directly connected with the reaction cylinder 1 or the medicament cylinder 2, the simple valve 3 and the reaction cylinder 1 or the medicament cylinder 2 form liquid sealing fixed connection by means of tight fit or hot melt welding of column hole fit.

In the embodiment, the reaction cylinder 1 and the medicament cylinder 2 are provided with the pipe joint 5, and the threaded interface is arranged on the pipe joint 5 on the medicament cylinder 2; one end of the simple valve 3 is in liquid-tight fixed connection with the corresponding reaction cylinder 1 by means of tight fit or hot-melt welding matched with a column hole through a pipe joint 5 without a threaded joint on the reaction cylinder 1, and the other end of the simple valve is in liquid-tight fixed connection with the medicament cylinder 2 by screwing with the threaded joint of the pipe joint 5.

Obviously, in this embodiment, the pipe joint 5 with a threaded interface can also be arranged on the reaction cylinder 1, and the pipe joint 5 on the medicament cylinder 2 has no threaded interface. At this time, one end of the simple valve 3 is fixedly connected with the medicament cylinder 2 in a liquid sealing way by means of tight fit or hot-melt welding matched with a column hole through a pipe joint 5 without a threaded interface on the medicament cylinder 2; the other end is screwed with the threaded joint of the pipe joint 5 to form liquid sealing connection with the reaction cylinder 1.

In this embodiment, the pipe joint 5 without a threaded interface may be omitted, and at this time, the corresponding end of the simple valve 3 directly forms a liquid-tight fixed connection with the reaction tube 1 or the medicament tube 2, and may specifically form a liquid-tight fixed connection by means of tight fit or hot-melt welding of the cylindrical hole fit. For example, when the pipe joint 5 with a threaded joint is arranged on the medicament cylinder 2, one end of the simple valve 3 is in liquid-tight fixed connection with the reaction cylinder 1 by means of tight fit or hot-melt welding matched with a column hole, and the other end of the simple valve is in liquid-tight connection with the medicament cylinder 2 by screwing with the threaded joint of the pipe joint 5. When the pipe joint 5 with the threaded joint is arranged on the reaction cylinder 1, one end of the simple valve 3 is in liquid-tight fixed connection with the medicament cylinder 2 by means of tight fit or hot-melt welding matched with a column hole, and the other end of the simple valve is in liquid-tight fixed connection with the reaction cylinder 1 by screwing with the threaded joint of the pipe joint 5.

In this embodiment, the reaction cartridge 1 and the drug cartridge 2 may be formed by blow molding or injection molding, or may be formed by bonding or hot-melt welding of a plurality of members in combination during injection molding.

In this embodiment, the number of the explosion vents 1a may be plural, and the explosion vents 1a may be provided in the bottom wall of the reaction cylinder 1.

In example 2, referring to fig. 5, a medicament injection port with a blocking member 2a is provided on the medicament cartridge 2, and the medicament injection port is coaxial with the simple valve 3; the simple valve 3 comprises a breakable seal 3d arranged in a tubular valve body 3a, and the breakable seal 3d is pressed by means of a threaded matching structure of the pipe joint 5.

The breakable seal 3d may be formed by a gasket or washer of cardboard or asbestos board in combination with or covered by a plastic film or tinfoil. I.e. the breakable seal 3b can be formed by a gasket and a plastic film in a composite or covering manner; or the gasket and the plastic film can be compounded or covered; wherein, the gasket and the gasket can be made of cardboard or asbestos board. Frangible refers to the property of an article that can be broken or poked by an average adult based on a screwdriver, or a pointed rod-like sharp tool.

Wherein the occluding member 2a is constituted by an occlusion.

In the embodiment, a medicine injection nozzle 2b is arranged on the medicine barrel 2, and an orifice of the medicine injection nozzle 2b forms a medicine injection port; the blocking member 2a is composed of a screw cap or a screw cock, and the screw cap or the screw cock is screwed with a screw port on the injection nozzle 2 b. Obviously, the blocking member 2a may also consist of a plug, so as to avoid the provision of a screw connection at the injection nozzle 2 b.

In this embodiment, the threaded interfaces on the adapter 5 and the nozzle 2b comprise internal threads and external threads, which are provided on different components to form a threaded fit. In terms of the connection relationship between the pipe joint 5 and the simple valve 3, the internal thread can be arranged on the tubular valve body 3a or on the pipe joint 5, and the corresponding other component is provided with the external thread; when the injection nozzle 2b and the blocking member 2a are provided with a threaded joint of external threads, the external threads are screwed with the screw cap, and when the injection nozzle 2b is provided with a threaded joint of internal threads, the internal threads are screwed with the screw cock.

The rest of the structure of this embodiment is the same as that of embodiment 1, and will not be described here again.

Embodiment 3, see fig. 6, the simple valve 3 comprises an elastic sealing plug 3c arranged inside a tubular valve body 3 a.

The elastic sealing plug 3c can be made of rubber, cork and the like, the maximum diagonal dimension of the free state of the elastic sealing plug is smaller than or close to the aperture of the explosion hole, and a rod type tool is inserted through a medicament injection opening, so that the elastic sealing plug 3c can be smoothly extruded from the explosion hole after being poked into the reaction cylinder, the explosion hole is prevented from being blocked, and the timely outward diffusion of a reaction polymer is delayed.

In this embodiment, the simple valve 3 formed based on the elastic sealing plug 3c is also suitable for the case that the pipe joint 5 is not provided with a threaded interface, and the corresponding tubular valve body 3a is not provided with a threaded interface.

The rest of the structure of this embodiment is the same as that of embodiment 3, and will not be described here again.

Example 4 referring to fig. 7 and 8, an annular band between the inner and outer annular tube walls at both ends of the reaction tube 1 has a space where a grouting tube 15 and a return tube 16 are inserted; an avoidance space for avoiding the grouting pipe 15 is reserved between the two medicament cylinders 2.

The grouting pipe 15 and the return pipe 16 of fig. 7 and 8 show their installation positions with two-dot chain lines, and the grouting pipe 15 and the return pipe 16 are not actually provided.

The remaining structure of this embodiment is the same as that of embodiment 1, 2 or 3, and will not be described here again.

Embodiment 5, a bag-type medicament hole sealer, comprising a medicament hole sealer and a bag cloth 9, wherein the medicament hole sealer is formed by the medicament hole sealer of embodiments 1, 2, 3 or 4; wherein the first extension of the connecting tube 4 also has a portion extending out of the cartridge 2, and the connecting tube 4 also has a second extension extending out of the reaction cartridge 1; the bag cloth 9 is fixed around the second extension section at one end and around the end of the reaction tube 1 close to the medicament tube 2 at the other end.

The rest of the structure of this embodiment is the same as that of embodiment 1, 2, 3 or 4, and will not be described here again.

Example 6, referring to fig. 10 and 11, the drug hole sealer is constituted by the drug hole sealer of example 4; the reaction tube further comprises an annular tube seat 14, the annular tube seat 14 is fixed on the second extension section, a return tube 16 is arranged on the annular tube seat 14, and the return tube 16 sequentially passes through two ends of the reaction tube 1; the bag cloth 9 is fixed on the annular tube seat 14 in a surrounding way at one end, and is fixed on the end of the reaction tube 1 close to the medicament tube 2 in a surrounding way at the other end.

The rest of the structure of this embodiment is the same as that of embodiment 5, and will not be described here again.

Embodiment 7, see fig. 12, 13, 14 and 15, further comprises a grouting pipe 15, the grouting pipe 15 is also arranged on the annular tube seat 14, the grouting pipe 15 sequentially passes through two ends of the reaction tube 1, and the grouting pipe 15 extends out of the medicament tube 2 through the avoiding space.

The rest of the structure of this embodiment is the same as that of embodiment 6, and will not be described here again.

In the hole sealers of embodiments 1, 2, 3, 4, 5, 6 and 7, any one or both of the ends of the reaction cylinder 1 and the medicament cylinder 2 are extended outwardly with a collar, the fitting length with the connection pipe 4 is extended by the collar to improve the connection reliability with the connection pipe 4, and the reaction cylinder 1 and the medicament cylinder 2 can form a more firm connection relationship with the connection pipe 4 by arranging a clip, a band or the like on the outer circumference of the collar.

In the hole sealers of examples 5, 6 and 7, the thickness of the bottom of the reaction tube 1 at the end fixed to the bag cloth 9 was larger than the thickness of the bottom of the other end to ensure the fixation of the bag cloth 9.

Embodiment 8, see fig. 16, a rapid hole sealing device, comprising a flow guiding pipe 10, wherein at least two hole sealing devices 11 are connected in series on the flow guiding pipe 10; all the hole sealers 11 are composed of the medicament hole sealers of examples 1, 2, 3 or 4.

The hole sealers 11 are arranged in a pairwise opposite mode, and the reaction cylinder 1 of the hole sealers 11 positioned in the direction of the hole opening of the extraction drill hole faces the inner end of the drill hole. The guide pipe 10 is connected with the connecting pipe 4 of the hole packer 11 through a straight-through threaded sleeve; the thread bush both ends set up the internal thread, all set up on honeycomb duct 10 and the connecting pipe 4 with this internal thread complex external screw thread, honeycomb duct 10 and connecting pipe 4 all are connected with straight thread bush through screw-thread fit, and the latus rectum of straight thread bush is not less than the minimum internal diameter in honeycomb duct 10 and the connecting pipe 4. The outer end of the hole packer 11 positioned in the direction of the hole opening of the extraction hole and the inner end of the hole packer 11 positioned in the direction of the hole bottom of the extraction hole are sleeved with elastic hole plugs 13. The honeycomb duct 10 is also provided with a plurality of centering members 12, the centering members 12 comprise a centering sleeve 12a and a plurality of elastic claws 12b which extend outwards from the same side of the centering sleeve 12a and are circumferentially and uniformly distributed; the two ends of the centering sleeve 12a of the centering component 12 are respectively provided with an axial positioning sleeve 8 fixedly connected to the flow guide pipe 10, and a movement space for the flow guide pipe 10 to axially reciprocate is arranged between the two axial positioning sleeves 8.

In this embodiment, when the guide pipe 10 and the connecting pipe 4 are made of PVC pipes with the same specification, the through-type threaded sleeve has an drift diameter not smaller than the inner diameters of the guide pipe 10 and the connecting pipe 4.

In example 9, see fig. 17, all of the hole sealers 11 are constituted by the pouch-type medicament hole sealers of example 5.

The rest of the structure of this embodiment is the same as that of embodiment 8, and will not be described here again.

The rapid hole sealing devices of embodiments 8 and 9 are pre-installed with a predetermined amount of polyurethane hole sealing agent A and polyurethane hole sealing agent B respectively through two medicament cartridges 2 of the hole packer 11 before use. After the device is transported to a site, a plurality of sections of guide pipes 10 are manufactured according to the hole sealing depth and length of the hole sealing design, or a plurality of sections of guide pipes 10 prefabricated in advance are selected, connection between the guide pipes 10 and connection between the hole packer 11 and the guide pipes 10 are realized by using straight-through threaded sleeves, a centering component 12 and an axial positioning sleeve 8 are arranged at a set position, and an elastic hole plug 13 is also required to be arranged in the quick hole sealing device of the device 8, so that the hole packer meeting the hole sealing design size requirement is formed. When the threads are not formed at the two ends of the connecting pipe 4, external threads are formed on the two ends of the connecting pipe 4 by threading the threads on site by using threading tools, and meanwhile, the flow guide pipe 10 can also form the external threads on site by threading.

After the quick hole sealing device is manufactured, a simple valve 3 is opened, materials A and B of polyurethane hole sealing agents in two medicament cylinders 2 naturally flow into or squeeze into a reaction cylinder 1 according to gravity, and after the quick hole sealing device is properly shaken and mixed, the quick hole sealing device is inserted into a to-be-sealed extraction drilling hole to a set depth or slightly smaller than the set depth according to the mode that an elastic claw 12B of a centering component 12 faces the direction of an orifice; and then, rapidly pumping the rapid hole sealing device by means of the flow guide pipe 10, shaking the mixed medicament in the reaction cylinder 1 to fully mix and rapidly perform chemical reaction until the set time, or after the pumping resistance is obviously increased, putting the rapid hole sealing device into a designed hole sealing position.

The quick hole sealing device utilizes the centering component 12 to enable the flow guide pipe 10 to be basically positioned in the center of a drilling hole, ensures that the outer wall of the flow guide pipe and the wall of the drilling hole have enough distance, is beneficial to filling and flowing of hole sealing slurry, and forms a plugging structure with enough thickness. Meanwhile, by utilizing the characteristic that the centering component 12 basically can not move reversely, the depth of the hole sealing device placed in the drill hole is determined by means of the front and rear axial positioning sleeves 8 of the centering component 12, and the pumping distance of the hole sealing device is determined by the distance between the two axial positioning sleeves 8 and the axial length of the centering component 12. In the pumping operation process, the pumping movement amplitude should be kept as small as possible or equal to the pumping distance determined by the device, and if the pumping distance is larger than the pumping distance, the centering member 12 is pushed towards the bottom direction of the drilling hole, so that the hidden danger of changing the hole sealing position exists.

Wherein, the centering component 12 and the axial positioning sleeve 8 can be fixed with the flow guide pipe 10 by adopting a set screw; the axial positioning sleeve 8 can also adopt a two-flap combined hoop structure, and is fixed on the guide pipe 10 by using a bolt and nut fastening mode through a connecting lug and a connecting hole on the hoop.

Embodiment 10, see fig. 18, a two-block one-injection hole sealing device comprises a flow guiding pipe 10, wherein two hole sealing devices 11 are connected in series on the flow guiding pipe 10; the hole packer 11 positioned in the bottom direction of the extraction drilling hole is composed of the bag-type medicament hole packer of the embodiment 6; the sealer 11 located in the direction of the extraction borehole opening was constituted by the bag-type agent sealer of example 7.

Wherein, two hole packer 11 are equipped with return pipe 16, and two return pipe 16 use alternatively, and the mouth of pipe of another return pipe 16 is blocked.

The rest of the structure of this embodiment is the same as that of embodiment 9, and will not be described here again.

In the two-plug one-injection hole sealing device of the embodiment, when the two plugs are formed by using the two-bag type medicament hole packer, cement slurry is injected outside through the grouting pipe 15, and a cement hole sealing section is formed between the two plugs. The device is suitable for sealing holes under pressure under a higher pressure condition, and has good hole sealing effect.

In example 11, referring to fig. 19, the sealer 11 located in the direction of the hole opening of the extraction drill hole is composed of a cement slurry grouting type bag sealer.

Referring to fig. 20, the cement grouting bag hole packer belongs to the prior art, and comprises a connecting pipe 4, wherein bag cloth 9 is arranged on the periphery of the connecting pipe 4, two ends of the bag cloth 9 are respectively bound and fixed on pipe sections at two ends of the connecting pipe 4, and the bag cloth 9 and the connecting pipe 4 form a bag. The grouting pipe 15 and the return pipe 16 are arranged on the bag in a penetrating way, and two ends of the grouting pipe 15 and the return pipe 16 are exposed outside the bag. The grouting pipe 15 is provided with a slurry outlet inside the sac, a blasting valve 17 is arranged on the distal end of the grouting pipe 15 extending out of the sac, and a check valve 18 is connected to the proximal end of the grouting pipe 15.

The explosion valve 17 is used for cracking after the grouting pressure in the bag reaches a set value, so that a slurry outlet is formed between the two hole sealers 11, and grouting of a hole sealing section between the two hole sealers 11 is realized. The check valve 18 is used to maintain the slurry pressure in the bladder and the sealing section after the grouting pump is stopped to cause the grouting system to drop after the entire grouting is completed. It is apparent that the check valve 18 may be located outside the pouch or inside the pouch. In this embodiment, the check valve 18 is disposed in the bag, so as to avoid collision and damage to the check valve 18 during the carrying process of the bag or during the drilling process of the hole sealing device.

The rest of the structure of this embodiment is the same as that of embodiment 10, and will not be described here again.

The two-over-one grouting hole sealing devices of examples 10 and 11 form a hole sealing mode of the external grouting slurry by means of a grouting system comprising a grouting pump. In the medicament hole sealing stage, the operation mode is the same as that of the rapid hole sealing device. After the hole sealing of the medicament is completed, namely, the mixed reaction polymer slurry is solidified, or in the solidification process, the grouting pipe 15 in the hole packer 11 at the orifice end is connected with a grouting pump pipeline of a grouting system. And after the mixed reaction polymer slurry is solidified, grouting cement slurry is started to carry out secondary hole sealing so as to form a hole sealing section. The grouting pump pipeline connected with the grouting pipe 15 in the embodiment 10 is further provided with a check valve, and the hole sealing grouting process of the hole sealing device in the embodiment 11 is sequentially carried out according to the grouting of the bag and the grouting of the hole sealing section.

When the hole is plugged, the back flow pipe 16 on the hole packer 11 in the hole bottom direction is plugged in advance, and then the hole sealing device is placed in the extraction drilling hole. In the grouting process of cement slurry, the backflow condition is observed through a backflow pipe of the hole packer in the hole opening direction, so that whether the slurry is full or not is judged, if the slurry is full, the grouting is stopped after the grouting is full, and the pressure is maintained by using a check valve.

When the hole is sealed, the back flow pipe of the hole packer 11 is plugged in advance, and then the hole packer is placed in the extraction drill hole. In the grouting process of cement slurry, the condition of clear water or low-concentration slurry flowing back from the guide pipe is observed by utilizing the structure that a return pipe of the hole bottom direction hole packer is communicated with the guide pipe through the hole bottom end, so as to judge whether the slurry is full, if the slurry is full, the grouting is stopped after the grouting is full, and the pressure is maintained by utilizing a check valve.

In example 12, referring to fig. 21, the hole sealer 11 located in the direction of the hole opening of the extraction drill hole is composed of the agent hole sealer of example 1, 2, 3 or 4 and the elastic hole plug 13 located outside the agent hole sealer.

The rest of the structure of this embodiment is the same as that of embodiment 10 or 11, and will not be described here again.

The two-plug one-injection hole sealing device of the embodiment forms a hole sealing mode of injecting the medicament hole sealing based on the medicament hole packer, and the operation mode is the same as that of the quick hole sealing device. But in the process of pre-loading the medicament, the polyurethane reaction speed of the hole bottom direction hole packer is adjusted to be larger than that of the hole opening direction hole packer based on different proportions, so that the hole bottom hole packer is used for sealing holes firstly, and the sequential hole sealing mode of injecting the reaction polymer slurry is carried out later, preferably, the polyurethane reaction speed and the polyurethane reaction speed are adjusted to be the time difference of more than 10 seconds from front to back.

When the hole sealing device is used, the medicament in the inner hole sealing device is reacted before the medicament in the inner hole sealing device is injected, so that the polymerization reaction time difference is obtained, the blocking section is formed by the inner hole sealing device, and then the inner hole sealing section is formed by the medicament reaction in the medicament hole sealing device. When the plugging device is used for plugging a upward hole with water in a crack, after a plugging section is formed at the inner end, the water in the crack outside the hole sealing section is isolated outside the plugging section of the bag by utilizing the bag, meanwhile, water and air which are extruded from a drill hole in the post-reaction polymerization foaming process are discharged by utilizing the return pipe, so that the size and the number of air holes formed after the reaction polymer in the hole sealing section is solidified can be reduced, the influence of the water on the solidification performance of the reaction polymer slurry is reduced, the solidification effect is ensured, and the plugging effect is further improved. When the depression hole with the fissured water is plugged, after a plugging section is formed at the inner end, a small amount of accumulated water of the fissured water caused by air and a bag which are extruded from a drill hole in the post-reaction polymerization foaming process is discharged by a return pipe.

In this embodiment, the pore diameter of the return pipe 16 is preferably controlled within 1mm, a plugging member may be fixed at one end of the pipe with a slightly larger pore diameter, and a small hole with a diameter within 1mm is provided on the plugging member for exhausting or draining water, so as to avoid leakage of the reactive polymer slurry from the return pipe after exhausting or draining water, and influence the plugging effect. The plugging member can be manufactured in the field of the hole sealing device.

Example 13 referring to fig. 22 and 23, a centering member, a hole sealing device for the third and fourth purposes, centers the flow guide tube 10 when it is placed to be sealed; comprises a centering sleeve 12a and a plurality of elastic claws 12b which extend outwards from the same side of the centering sleeve 12a and are circumferentially and uniformly distributed; wherein the resilient fingers 12b comprise a radial extension and an axial extension.

Wherein, the radial extension and axial extension of the elastic claw 12b mean that the elastic claw 12b extends obliquely outward, and its size increases along with the radial increase. The extending mode comprises linear extending and curve extending, and the curve extending specifically extends outwards according to the curve of the parabolic ascending section.

At least one screw hole 12c is provided in the centering sleeve 12a, the screw hole 12c being used for the setting of a tightening screw.

In this embodiment, the elastic claws 12b are provided with 3, the screw holes 12c are provided with 2, and the 2 screw holes 12c are 90 degrees out of phase.

The centering member of this embodiment is integrally molded by injection molding.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a medicament hole packer, includes reaction tube (1) of annular tubular structure, is equipped with at least one explosion hole (1 a) of interim confined on reaction tube (1), its characterized in that still includes half moon shape tubular structure's medicament tube (2), two medicament tube (2) respectively through a simple and easy valve (3) that have tubular valve body (3 a) with reaction tube (1) intercommunication.

2. The medicament hole packer according to claim 1, wherein the reaction cylinder (1) comprises a circular cylinder body with holes in the middle of two end walls, a connecting pipe (4) is arranged in the circular cylinder body in a penetrating manner through the holes in the middle of the two end walls, the connecting pipe (4) and the reaction cylinder (1) form a liquid-tight connection relationship, and the reaction cylinder (1) forms an annular cylinder structure through the connecting pipe (4).

3. The medicament hole packer according to claim 2, characterized in that the connecting tube (4) has a first extension section extending to the medicament cartridge (2), through which first extension section the medicament cartridge (2) is fixedly connected with the connecting tube (4).

4. The medicament hole packer according to claim 2, wherein the slurry explosion hole (1 a) is formed on the bottom wall or the side wall of the other end of the circular cylinder far away from the simple valve (3).

5. The medicament hole packer according to any one of claims 1 to 4, characterized in that a pipe joint (5) connected with the simple valve (3) is provided on at least one of either the medicament cartridge (2) and the reaction cartridge (1), and at most one pipe joint (5) has a threaded interface; one end of the simple valve (3) is directly and fixedly connected with the reaction cylinder (1) or the medicament cylinder (2) in a liquid sealing way; the other end is fixedly connected with the corresponding medicament cylinder (2) or the corresponding reaction cylinder (1) in a liquid-tight manner through a pipe joint (5); or, two ends of the simple valve (3) are fixedly connected with the reaction cylinder (1) and the medicament cylinder (2) in a liquid sealing way through corresponding pipe joints (5) respectively; in the structure that the pipe joint (5) is provided with a threaded interface, the simple valve (3) is screwed with the threaded interface of the pipe joint (5) to form liquid-tight connection with the reaction cylinder (1) or the medicament cylinder (2); in the structure that the pipe joint (5) is not provided with a threaded interface, the simple valve (3) is fixedly connected with the corresponding medicament cylinder (2) or the corresponding reaction cylinder (1) in a liquid-tight manner by means of tight fit or hot-melt welding of column hole fit through the pipe joint (5) without the threaded interface; in the structure that the simple valve (3) is directly connected with the reaction cylinder (1) or the medicament cylinder (2), the simple valve (3) and the reaction cylinder (1) or the medicament cylinder (2) are in liquid sealing fixed connection by means of matched close fit or hot melt welding of column holes.

6. The medicament hole packer according to claim 5, wherein the medicament cartridge (2) is provided with a medicament injection port having a blocking member (2 a), the medicament injection port being coaxial with the simple valve (3); the simple valve (3) comprises an elastic sealing plug (3 c) arranged in the tubular valve body (3 a); or in the structure that one pipe joint (5) is provided with a threaded interface, the simple valve (3) further comprises a breakable sealing gasket (3 d) arranged in the tubular valve body (3 a), the breakable sealing gasket (3 d) is tightly pressed by means of the threaded matching structure of the pipe joint (5), and the breakable sealing gasket (3 d) and the elastic sealing plug (3 c) are alternatively arranged.

7. The medicament hole packer according to claim 6, wherein a medicament injection nozzle (2 b) is arranged on the medicament cartridge (2), and an orifice of the medicament injection nozzle (2 b) forms the medicament injection port; the blocking member (2 a) is constituted by a screw cap or a screw tap.

8. The medicament hole packer according to any one of claims 1 to 4, wherein a valve core (3 b) is traversed in the middle of a tubular valve body (3 a) of the simple valve (3), the valve core (3 b) is in liquid-tight connection with the tubular valve body (3 a), and a valve hole communicating with pipe holes at two ends of the tubular valve body (3 a) is formed in the valve core (3 b).

9. The medicament hole packer according to any one of claims 1 to 4, wherein a space for passing through a grouting pipe (15) and a return pipe (16) is arranged between the inner annular pipe wall and the outer annular pipe wall at the two ends of the reaction cylinder (1); an avoidance space for avoiding the grouting pipe (15) is reserved between the two medicament cylinders (2).

10. A bag-type medicament hole packer comprising a medicament hole packer and a bag cloth (9), characterized in that the medicament hole packer is composed of the medicament hole packer according to any one of claims 1 to 9; wherein the first extension section of the connecting pipe (4) is also provided with a part which extends out of the medicament cylinder (2), and the connecting pipe (4) is also provided with a second extension section which extends out of the reaction cylinder (1); one end of the bag cloth (9) is fixed on the second extension section in a surrounding manner, and the other end of the bag cloth is fixed on the end part of the reaction cylinder (1) close to the medicament cylinder (2) in a surrounding manner.

11. The pouch-type drug sealer according to claim 10, wherein the drug sealer is constituted by the drug sealer according to claim 9; the reaction tube also comprises an annular tube seat (14), wherein the annular tube seat (14) is fixed on the second extension section, a return tube (16) is arranged on the annular tube seat (14), and the return tube (16) sequentially penetrates through the two ends of the reaction tube (1); one end of the bag cloth (9) is fixed on the annular tube seat (14) in a surrounding manner, and the other end of the bag cloth is fixed on the end part, close to the medicament tube (2), of the reaction tube (1) in a surrounding manner.

12. The bag-type medicament hole packer according to claim 11, further comprising a grouting pipe (15), wherein the grouting pipe (15) is also arranged on the annular pipe seat (14), the grouting pipe (15) sequentially penetrates through two ends of the reaction cylinder (1), and the grouting pipe (15) extends out of the medicament cylinder (2) through the avoidance space.

13. The rapid hole sealing device comprises a flow guiding pipe (10), wherein at least two hole sealing devices (11) are connected in series on the flow guiding pipe (10); characterized in that at least one of the hole sealers (11) is constituted by a medicament hole sealer according to any one of claims 1 to 9; alternatively, at least one of the hole sealers (11) is constituted by a bag-type medicament hole sealer as claimed in claim 10 or 11.

14. The rapid hole sealing device according to claim 13, wherein all the hole sealers (11) are constituted by the medicament hole sealers according to any one of claims 1 to 9; the hole packer (11) outer end that is located the extraction drilling hole mouth direction on honeycomb duct (10) and hole packer (11) inner end that is located the extraction drilling hole bottom direction all suit elasticity hole stopper (13).

15. The rapid hole sealing device according to claim 13, wherein all the hole sealers (11) are constituted by the bag-type medicament hole sealers according to claim 10 or 11.

16. The rapid hole sealing device according to any one of claims 13 to 15, wherein the flow guiding pipe (10) is further provided with a plurality of centering members (12), the centering members (12) comprise a centering sleeve (12 a) and a plurality of elastic claws (12 b) which extend outwards from the centering sleeve (12 a) in the same side direction and are uniformly distributed on the circumference; the two ends of the centering sleeve (12 a) of the centering component (12) are respectively provided with an axial positioning sleeve (8) fixedly connected to the flow guide pipe (10), and a movement space for the flow guide pipe (10) to axially reciprocate is arranged between the two axial positioning sleeves (8).

17. The two-plug one-hole sealing device comprises a flow guide pipe (10), wherein two hole sealing devices (11) are connected in series on the flow guide pipe (10); the hole packer (11) positioned at the bottom direction of the extraction drilling hole is characterized by comprising the bag-type medicament hole packer as claimed in claim 11; the hole packer (11) positioned in the direction of the hole opening of the extraction drill hole is composed of the bag-type medicament hole packer as claimed in claim 12; or the hole packer (11) positioned in the direction of the drilling hole opening is formed by a cement slurry grouting type bag hole packer; or the hole packer (11) positioned in the direction of the hole opening of the extraction drill hole consists of the medicament hole packer according to any one of claims 1 to 9 and an elastic hole plug (13) positioned outside the medicament hole packer; the cement slurry grouting type bag hole packer is provided with a grouting pipe (15) and a backflow pipe (16); in the structure that the two hole sealers (11) are provided with the return pipes (16), one return pipe (16) is used, and the pipe orifice of the other return pipe (16) is blocked.

18. The two-plug one-injection hole sealing device according to claim 17, wherein in the structure that the hole packer (11) located in the direction of the hole opening of the extraction drill hole is composed of the medicament hole packer according to any one of claims 1 to 9 and the elastic hole plug (13) located outside the medicament hole packer, the return pipe (16) is used for exhausting air, and the hole caliber of the return pipe is not more than 1mm.

19. The two-plug one-injection hole sealing device according to claim 17 or 18, wherein the flow guiding pipe (10) is further provided with a plurality of centering members (12), the centering members (12) comprise a centering sleeve (12 a) and a plurality of elastic claws (12 b) which extend outwards from the centering sleeve (12 a) in the same side direction and are uniformly distributed on the circumference; the two ends of the centering sleeve (12 a) of the centering component (12) are respectively provided with an axial positioning sleeve (8) fixedly connected to the flow guide pipe (10), and a movement space for the flow guide pipe (10) to axially reciprocate is arranged between the two axial positioning sleeves (8).