CN210768749U

CN210768749U - Hydrogeological drilling detection equipment with block structure

Info

Publication number: CN210768749U
Application number: CN201921767666.4U
Authority: CN
Inventors: 徐西滨
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-06-16
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a hydrogeology drilling detection equipment with block structure, including drilling rod and drill bit, the drill bit is installed in the drilling rod bottom, has seted up shutoff groove and sample groove in the drilling rod, and drilling rod bottom outer wall is opened there is the water sucking mouth, and water sucking mouth intercommunication sample groove opens on the outer wall of drilling rod has two grooves of accomodating, and the grouting bag is cup jointed in the inner wall outside of accomodating the groove, and the inner wall of accomodating the groove is opened there is grouting hole and row's thick liquid hole, and the grouting hole, all install the pressure valve in row's thick liquid hole and the water sucking mouth, and the governing valve is cup jointed to the drilling rod outer wall, the inner chamber. When the drill bit bored into sample water layer, to the packing colloidal liquid in the shutoff groove, colloidal liquid took in the inslot through the injection hole injection, and grout bag inflation extrusion realizes the shutoff at the drilling inner wall, and colloidal liquid flows the drilling rod through the pressure valve and fills the closed area between two grout bags and drilling inner wall, and colloidal liquid flows into the rock gap of drilling inner wall, realizes the shutoff in gap, through sample groove extraction sample after the shutoff.

Description

Hydrogeological drilling detection equipment with block structure

Technical Field

The utility model relates to a hydrogeology surveys technical field, specifically is a hydrogeology drilling detection equipment with block structure.

Background

Hydrogeological drilling is the most important and reliable exploration means for directly exploring underground water, is the necessary project for carrying out various hydrogeological tests, is usually carried out after drilling into a water layer and then extracting a water sample for observation, when pumping water, the top of a drill hole needs to be plugged, so that the phenomena of water spraying and water gushing are avoided, the existing plugging method is to pour materials such as cement and the like on the top of the drill hole after a drill rod drills into a sampling layer, the drill hole is sealed by the solidification of materials such as cement, however, the solidification time of the cement is long, the control is difficult, and cement is difficult to be attached to the inner wall of the drill hole for forming when the geology is wet, the plugging effect is poor, and the cement needs to be crushed and taken out after sampling, therefore, the drill rod and the drill bit can be separated from the ground, and the hydrogeological drilling detection equipment with the plugging structure is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrogeology drilling detection equipment with block structure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hydrogeology drilling detection equipment with block structure, includes drilling rod and drill bit, drill bit fixed mounting is in the bottom of drilling rod, it has shutoff groove and sample groove to open in the drilling rod, cup joint communicating pipe on the drilling rod outer wall at shutoff groove and sample groove top, the drilling rod is close to the one end outer wall of drill bit and opens there is the water sucking mouth, the bottom of water sucking mouth intercommunication sample groove, it has two to accomodate the groove to open on the outer wall of drilling rod, accomodate the fixed grouting bag that cup joints in the inner wall outside in groove, the inner wall of accomodating the groove is opened there is injected hole and row's thick liquid hole, equal fixed mounting pressure valve in injected hole, row's thick liquid hole and the water sucking mouth, two accomodate the fixed governing valve that cup joints of drilling rod outer wall between the groove, the inner chamber in governing valve.

Preferably, the filter screen is fixedly installed on the outer side of the inner wall of the water suction port, the probe is fixedly installed on the outer wall of the bottom of the drill rod, and the connecting line of the probe penetrates through the outer wall of the top of the drill rod along the axis of the drill rod.

Preferably, the accommodating groove is of an annular structure along the circumferential outer wall of the drill rod, the grouting bag is of a hollow annular structure made of elastic rubber, and the diameter of the grouting bag is larger than the outer diameter of the drill rod.

Preferably, the pressure valve includes first valve body, equal fixed the cup jointing first valve body in injected hole, row's thick liquid hole and the water absorption mouth, open at first valve body both ends has the through-hole, the one end of the inner chamber one end fixed connection pressure spring of first valve body, the first ball sealer of other end fixed connection of pressure spring, first ball sealer closely presses on the through-hole of the first valve body other end.

Preferably, the pressure spring is in a compression state all the time, the first sealing ball at the grouting hole is close to the plugging groove, the first sealing ball at the grout discharging hole is close to the accommodating groove, and the first sealing ball at the water absorbing hole faces the outer wall of the drill rod.

Preferably, the regulating valve comprises a second valve body, the second valve body is fixedly sleeved on the outer wall of the drill rod, a through hole is formed in one end, close to the plugging groove, of the second valve body, an adjusting block is sleeved on the outer side of an inner cavity of the second valve body through a threaded structure, the inner wall of the adjusting block is fixedly connected with one end of a spring, the other end of the spring is fixedly connected with a second sealing ball, the second sealing ball is tightly pressed on the through hole in the end face of the second valve body, and a side outlet of an L-shaped structure is formed between the outer wall, close to the plugging groove, of the second valve body and the outer wall of the drill.

Compared with the prior art, the beneficial effects of the utility model are that: the grouting bags are normally tightly attached to the inner wall of the accommodating groove, so that a drill rod and a drill bit can conveniently drill into the ground, when the drill bit extends into a sampling water layer, the plugging groove is externally provided with a pump body through a connecting pipe at the top of the drill rod, colloidal liquid is filled into the plugging groove, the colloidal liquid is firstly injected into the accommodating groove through a pressure valve of a grouting hole, the two grouting bags expand and extrude to plug the inner wall of the drill hole, and the regulating valve is opened under pressure after the two grouting bags are filled with the colloidal liquid, the colloidal liquid flows out of the drill rod and is filled into a sealed area between the two grouting bags and the inner wall of the drill hole, so that the colloidal liquid flows into a rock gap of the inner wall of the drill hole, the plugging and the multiple plugging; the water suction port is normally closed by the pressure valve and the filter screen, so that external slurry is prevented from entering the sampling groove during drilling, and the pressure valve is opened by external air suction during sampling, so that a water quality sample can be conveniently extracted from the water suction port; after sampling, the colloidal liquid in the plugging groove is extracted through the external pump body, the colloidal liquid in the containing groove is discharged through the grout discharging hole, and the grouting bag is contracted, so that the drill rod and the drill bit can be conveniently and quickly taken out; through rotating the regulating block to the pressure value of regulating spring then changes the elasticity size of spring and pressure spring, realizes that the pressure differential that regulating valve opened and the pressure valve opened, and then the colloidal liquid promotes the pressure size of the second ball sealer in the governing valve different, thereby adjusts the inflation pressure of grouting bag, and the grouting bag of being convenient for compresses tightly soft soil and stereoplasm soil.

Drawings

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

FIG. 2 is a schematic structural view of the utility model during sampling;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 2 according to the present invention.

In the figure: the device comprises a drill rod 1, a drill bit 2, a plugging groove 3, a sampling groove 4, a water sucking port 5, a receiving groove 6, a grouting bag 7, a pressure valve 8, a first valve body 81, a first sealing ball 82, a pressure spring 83, a regulating valve 9, a second valve body 91, a regulating block 92, a spring 93, a second sealing ball 94, a side outlet 95, a grouting hole 10, a grouting hole 11 and a probe 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a hydrogeology drilling detection equipment with block structure, including drilling rod 1 and

drill bit

2, 2 fixed mounting of drill bit are in the bottom of drilling rod 1, it has shutoff groove 3 and sample groove 4 to open in drilling rod 1, communicating pipe has been cup jointed on the drilling rod 1 outer wall at shutoff groove 3 and sample groove 4 top, drilling rod 1 is close to the one end outer wall of drill bit 2 and opens there is water sucking mouth 5, the bottom of water sucking mouth 5 intercommunication sample groove 4, it has two to accomodate groove 6 to open on drilling rod 1's the outer wall, the fixed grout bag 7 that cup joints in the inner wall outside of accomodating groove 6, the inner wall of accomodating groove 6 is opened there are injected hole 10 and row's grout hole 11, injected hole 10, arrange equal fixed mounting pressure valve 8 in grout hole 11 and the water sucking mouth 5, two 1 outer wall of accomodating between groove 6 are fixed cup joints governing valve 9, governing valve 9 communicates. The top of a drill rod 1 is connected with drilling equipment through devices such as a coupler, the drill rod 1 drives a drill bit 2 to rotationally drill into the ground, when the drill bit 2 drills into a sampling water layer, the drill rod 1 stops rotating, a sealing groove 3 is externally provided with a pump body through a connecting pipe at the top of the drill rod 1, so that colloidal liquid is filled into the sealing groove 3, the colloidal liquid is firstly injected into a containing groove 6 through a pressure valve 8 of a grouting hole 10, two grouting bags 7 are expanded and extruded to realize sealing on the inner wall of a drill hole, and an adjusting valve 9 is opened under pressure after the two grouting bags 7 are filled with the colloidal liquid, the colloidal liquid flows out of the drill rod 1 and is filled into a sealed area between the two grouting bags 7 and the inner wall of the drill hole, so that the colloidal liquid flows into a rock gap of the inner wall of the drill hole, the gap is sealed, multiple sealing is realized, the sampling and the detection are prevented from being influenced by water seepage at, the sampling back extracts the interior colloidal liquid of shutoff groove 3 through external pump body, then accomodates the interior colloidal liquid of groove 6 and discharges through row grout hole 11, and grout bag 7 shrink is convenient for take out drilling rod 1 and drill bit 2 fast, and finally will drill hole tamp can, notice that the setting value of governing valve 9 opening pressure is higher than the opening pressure of 8 pressure valves in grouting hole 10.

Furthermore, the colloidal liquid can be made of polyurethane chemical grouting materials, and the colloidal oil can be used for filling the grouting bag 7 to expand the grouting bag and filling rock gaps to enable the inner wall of the drilled hole to be tighter, so that water seepage is avoided.

The filter screen is installed to the 5 inner walls outside fixed mounting of water sucking mouth, avoids external mud to block up

water sucking mouth

5, 1 bottom outer wall fixed mounting of drilling rod probe 12, and the connecting wire of probe 12 runs through to the side direction outer wall at drilling rod 1 top along drilling rod 1 axis and wears out (the connecting wire of probe 12 runs through drilling rod 1 and does not see on the picture), then when drilling rod 1 stops to bore the back, the connecting wire of accessible probe 12 is connected outside detection device and is enough carried out on-line measuring to quality of water.

Accomodate groove 6 for the annular structure along 1 circumference outer wall of drilling rod, the cavity annular structure that grout bag 7 was made for elastic rubber, and the diameter of grout bag 7 is greater than drilling rod 1's external diameter, then 6 inner walls of accomodating are hugged closely to the shrivelled at ordinary times of grout bag 7, are convenient for bore into ground, thereby fill in the grout bag 7 and expand behind the colloidal liquid and can compress tightly the drilling inner wall and realize the shutoff.

Preferably, the pressure valve 8 comprises a first valve body 81, the grouting hole 10, the grout discharging hole 11 and the water suction port 5 are fixedly sleeved with the first valve body 81, through holes are formed in two ends of the first valve body 81, one end of an inner cavity of the first valve body 81 is fixedly connected with one end of a pressure spring 83, the other end of the pressure spring 83 is fixedly connected with a first sealing ball 82, the first sealing ball 82 is tightly pressed on the through hole in the other end of the first valve body 81, the pressure spring 83 is always in a compression state, the first sealing ball 82 in the grouting hole 10 is close to the plugging groove 3, the first sealing ball 82 in the grout discharging hole 11 is close to the accommodating groove 6, the first sealing ball 82 in the water suction port 5 faces the outer wall of the drill rod 1, and when the colloidal liquid is injected through the plugging groove 3, the first sealing ball 82 in the grouting hole 10 is pressed to be opened, so that the colloidal liquid can conveniently enter the accommodating groove 6; when discharging colloidal liquid, the first ball sealer 82 in the grout outlet 11 department is opened to outside pump body suction negative pressure to discharge and make the grout bag 7 hug closely and accomodate groove 6 in will accomodating the interior colloidal liquid of groove 6, during the sample like this, first ball sealer 82 is pulled to the negative pressure in the sample groove 4, makes water sucking mouth 5 open, is convenient for extract the sample.

The regulating valve 9 comprises a second valve body 91, the second valve body 91 is fixedly sleeved on the outer wall of the drill rod 1, a through hole is formed in one end, close to the plugging groove 3, of the second valve body 91, the outer side of the inner cavity of the second valve body 91 is sleeved with a regulating block 92 through a threaded structure, one end of a spring 93 is fixedly connected with the inner wall of the regulating block 92, the other end of the spring 93 is fixedly connected with a second sealing ball 94, the second sealing ball 94 is tightly pressed on the through hole in the end face of the second valve body 91, a side outlet 95 of an L-shaped structure is formed between the outer wall, close to the plugging groove 3, of the second valve body 91 and the outer wall of the drill rod 1, the size of the elastic force of the spring 93 is changed by rotating the regulating block 92, the size of the elastic force of the spring 93 and a pressure spring 83 is changed, the pressure difference between the opening of the regulating valve 9 and the opening of the pressure valve 8 is realized, the expansion pressure of the grouting bag 7 is regulated, the grouting bag 7 The pressure of (a).

The working principle is as follows: when the utility model is used, the top of the drill rod 1 is connected with drilling equipment through devices such as a shaft coupling, the drill rod 1 drives the drill bit 2 to rotate and drill into the ground, when the drill bit 2 drills into a sampling water layer, the drill rod 1 stops rotating, the plugging groove 3 is provided with an external pump body through a connecting pipe at the top of the drill rod 1, so that colloidal liquid is filled in the plugging groove 3, the colloidal liquid is firstly injected into the accommodating groove 6 through the pressure valve 8 of the grouting hole 10, then the two grouting bags 7 expand and extrude to realize plugging on the inner wall of a drill hole, and the two grouting bags 7 are filled with the colloidal liquid and then the regulating valve 9 is opened under pressure, the colloidal liquid flows out of the drill rod 1 and is filled into a closed area between the two grouting bags 7 and the inner wall of the drill hole, so that the colloidal liquid flows into a rock gap of the inner wall of the drill hole, the plugging of the gap is realized, the multiple plugging is avoided that the water seepage at the top, the interior colloidal liquid of shutoff groove 3 is extracted through the external pump body after the sample, then accomodate the interior colloidal liquid of groove 6 and discharge through arranging grout hole 11, grout bag 7 shrink, be convenient for take out drilling rod 1 and drill bit 2 fast, finally can with the drilling tamp, and through rotating regulating block 92, thereby regulating spring 93's pressure value, then change the elasticity size of spring 93 and pressure spring 83, realize the pressure differential that governing valve 9 opened and pressure valve 8 opened, then the pressure variation of the second ball sealer 94 in colloidal liquid promotion governing valve 9, thereby the inflation pressure of regulation grout bag 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydrogeological drilling detection equipment with block structure, includes drilling rod (1) and drill bit (2), its characterized in that: the drill bit (2) is fixedly arranged at the bottom of the drill rod (1), a plugging groove (3) and a sampling groove (4) are formed in the drill rod (1), a communicating pipe is sleeved on the outer wall of the drill rod (1) at the tops of the plugging groove (3) and the sampling groove (4), a water suction port (5) is formed in the outer wall of one end, close to the drill bit (2), of the drill rod (1), the water suction port (5) is communicated with the bottom of the sampling groove (4), two accommodating grooves (6) are formed in the outer wall of the drill rod (1), a grouting bag (7) is fixedly sleeved on the outer side of the inner wall of each accommodating groove (6), a grouting hole (10) and a grout discharging hole (11) are formed in the inner wall of each accommodating groove (6), a pressure valve (8) is fixedly arranged in each grouting hole (10), each grout discharging hole (11) and each water suction port (5), and a regulating valve (9) is fixedly sleeved on the outer wall of the drill rod (1) between the two, the regulating valve (9) is communicated with the inner cavity of the plugging groove (3).

2. The hydrogeological drilling detection apparatus with a plugging structure of claim 1, wherein: the water sucking mouth (5) inner wall outside fixed mounting filter screen, drilling rod (1) bottom outer wall fixed mounting probe (12), and the connecting wire of probe (12) runs through to drilling rod (1) top outer wall along drilling rod (1) axis.

3. The hydrogeological drilling detection apparatus with a plugging structure of claim 1, wherein: the receiving groove (6) is of an annular structure along the circumferential outer wall of the drill rod (1), the grouting bag (7) is of a hollow annular structure made of elastic rubber, and the diameter of the grouting bag (7) is larger than the outer diameter of the drill rod (1).

4. The hydrogeological drilling detection apparatus with a plugging structure of claim 1, wherein: pressure valve (8) include first valve body (81), equal fixed cup joint first valve body (81) in injected hole (10), row's thick liquid hole (11) and water sucking mouth (5), open at first valve body (81) both ends has the through-hole, the one end of the inner chamber one end fixed connection pressure spring (83) of first valve body (81), the first ball sealer (82) of other end fixed connection of pressure spring (83), first ball sealer (82) closely press on the through-hole of the first valve body (81) other end.

5. The hydrogeological drilling detection apparatus with a plugging structure of claim 4, wherein: the pressure spring (83) is always in a compression state, the first sealing ball (82) at the grouting hole (10) is close to the plugging groove (3), the first sealing ball (82) at the grout discharging hole (11) is close to the accommodating groove (6), and the first sealing ball (82) at the water suction port (5) faces to the outer wall of the drill rod (1).

6. The hydrogeological drilling detection apparatus with a plugging structure of claim 1, wherein: the adjusting valve (9) comprises a second valve body (91), the second valve body (91) is fixedly sleeved on the outer wall of the drill rod (1), a through hole is formed in one end, close to the plugging groove (3), of the second valve body (91), an adjusting block (92) is sleeved on the outer side of an inner cavity of the second valve body (91) through a threaded structure, one end of a spring (93) is fixedly connected to the inner wall of the adjusting block (92), the other end of the spring (93) is fixedly connected with a second sealing ball (94), the second sealing ball (94) is tightly pressed on the through hole of the end face of the second valve body (91), and a side outlet (95) of an L-shaped structure is formed between the outer wall, close to the plugging groove (3), of the second valve body (91) and the outer wall of the drill rod (1).