CN215640277U

CN215640277U - Rock-soil core sampling drill bit with light-disturbance double-tube mechanism

Info

Publication number: CN215640277U
Application number: CN202122201900.0U
Authority: CN
Inventors: 黄成平; 方树彬; 曾林东; 符伟军; 于海鹏; 黄琦; 卢勤文; 农旭聪
Original assignee: Guangdong Geology Construction Engineering Investigation Research Institute
Current assignee: Guangdong Geology Construction Engineering Investigation Research Institute
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-25
Anticipated expiration: 2031-09-10

Abstract

The utility model relates to the technical field of rock-soil core sampling, and discloses a rock-soil core sampling drill bit with a light-disturbance double-tube mechanism. According to the utility model, the two sliding blocks are positioned in the second sliding groove to slide, so that the first groove is exposed, the rock soil core falls into the first groove, a flow guiding effect is achieved through the first groove, the outer pipe is pressed down into the first groove to rotate after collection is completed, the sliding blocks are clamped with the inner wall of the first sliding groove, and the rock soil core is collected in such a way.

Description

Rock-soil core sampling drill bit with light-disturbance double-tube mechanism

Technical Field

The utility model relates to the technical field of rock-soil core sampling, in particular to a rock-soil core sampling drill bit with a light-disturbance double-pipe mechanism.

Background

Sampling refers to the process of extracting an individual or sample from a population, i.e., the process of testing or observing the population. Random sampling and non-random sampling. The former refers to a sampling method for extracting samples from the population according to the randomization principle, which does not have any subjectivity, and includes simple random sampling, systematic sampling, whole group sampling, and hierarchical sampling.

The Chinese patent discloses: the utility model provides a plug-type rock-core pipe convenient to observe original ground layer, patent application no: 201920537651.2, the patent "includes the core barrel body, the upper end of core barrel body is used for being connected with the drilling rod, and the lower extreme is used for being connected with the drill bit, its characterized in that: still including the apron, seted up the observation sample connection in the side of core barrel body, the observation sample connection runs through the lower extreme of core barrel body downwards, and the apron closes on the observation sample connection through push-and-pull structure lid, and push-and-pull structure is including setting up at the gib block of observation sample connection both sides limit and setting up the spout on the both sides limit of apron, gib block and spout looks adaptation ".

However, when the device is used for sampling, soil at the top end is easy to fall into the device when the drill soil is pulled out during sampling, so that the detection result is not accurate, and therefore, the rock soil core sampling drill bit with the light-disturbance double-tube mechanism is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides a rock core sampling drill bit with a light-disturbance double-tube mechanism.

In order to achieve the aim, the utility model adopts the following technical scheme that the rock core sampling drill bit with the light disturbance double-tube mechanism comprises a drill body, the top end of the drill body is provided with a first groove, the top end of the drill body is fixed with a guide ring, the inner wall of the first groove is fixed with a rod body, two sliding blocks are fixed on the side wall of the first groove, the outer pipe is sleeved on the first groove through the two sliding blocks, the inner wall of the outer pipe is provided with a second groove, the inner wall of the second groove is provided with two first sliding chutes which are symmetrically distributed, the bottom ends of the two first sliding chutes are provided with second sliding chutes respectively, the two sliding blocks are positioned in the first sliding chutes to slide, the second groove top is provided with a through hole matched with the size of the rod body, the bottom ends of the inner walls of the second sliding grooves are fixed with bases, the inner walls of the bases slide with pistons, and the outer ends of the bases are provided with transmission pipes.

Preferably, the outer ends of the two transmission pipes penetrate through the second sliding grooves, and the inner walls of the two transmission pipes are provided with one-way water outlet valves.

Preferably, the top ends of the two pistons are respectively fixed with a piston rod, and the outer ends of the two piston rods penetrate through the top end of the base.

Preferably, the free tail ends of the two piston rods are respectively fixed with a first cross rod, and the two first cross rods are located in the second sliding grooves.

Preferably, the outer ends of the two sliding blocks are provided with rollers.

Preferably, the guide ring is made of elastic rubber, and the inner wall of the guide ring is in a wedge shape with a wider top end and a narrower bottom end.

Advantageous effects

The utility model provides a rock core sampling drill bit with a light-disturbance double-pipe mechanism. The method has the following beneficial effects:

(1) when the rod body rotates downwards, the rock core sampling drill bit with the light-disturbance double-tube mechanism, the two sliding blocks are positioned on the inner walls of the two first sliding grooves, when the drilling is finished, the outer pipe is rotated, the sliding blocks slide to the center of the first sliding grooves, thereby pulling the outer pipe upwards, the two sliding blocks are positioned in the second sliding chute to slide at the moment, the first groove is exposed, the rock core falls into the first groove, the effect of guiding flow is achieved through the first groove, after the collection is finished, the outer pipe is pressed down to the inside of the first groove to rotate, so that the sliding block is clamped with the inner wall of the first sliding chute, and the effect of collecting the rock core is achieved in such a way, compared with the traditional equipment, this equipment avoids the soil on top to drop to first recess when collecting inside, prevents to fall to the inspection result that leads to in the first recess not accurate because of top soil.

(2) This kind of ground core sample drill bit with double-barrelled mechanism of light disturbance through the slider at second spout inner wall lapse, makes first horizontal pole push down, and the piston is located the base inner wall lapse this moment to spout the water of inside through the transmission pipe, through such mode, play the effect on slight disturbance soil horizon.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

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

FIG. 2 is a schematic view of a rod body structure according to the present invention;

FIG. 3 is a schematic view of the internal structure of the outer tube of the present invention.

Illustration of the drawings: 11. a drill body; 12. a flow guide ring; 13. a first groove; 14. a rod body; 15. an outer tube; 16. a second groove; 17. perforating; 18. a first chute; 19. a second chute; 20. a base; 21. a slider; 22. a roller; 23. a first cross bar; 24. a piston rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a rock core sampling drill bit with a light-disturbance double-tube mechanism is disclosed, as shown in figures 1-3, and comprises a drill body 11, a first groove 13 is arranged at the top end of the drill body 11, a flow guide ring 12 is fixed at the top end of the drill body 11, a rod body 14 is fixed on the inner wall of the first groove 13, two sliders 21 are fixed on the side wall of the first groove 13, an outer tube 15 is sleeved on the first groove 13 through the two sliders 21, a second groove 16 is arranged on the inner wall of the outer tube 15, two first sliding grooves 18 which are symmetrically distributed are arranged on the inner wall of the second groove 16, second sliding grooves 19 are arranged at the bottom ends of the two first sliding grooves 18, the two sliders 21 are positioned in the first sliding grooves 18 to slide, a through hole 17 which is matched with the size of the rod body 14 is arranged at the top end of the second groove 16, bases 20 are fixed at the bottom ends of the inner walls of the two second sliding grooves 19, pistons are arranged on the inner walls of the two bases 20 in a sliding manner, transmission tubes are arranged at the outer ends of the two bases 20, the outer ends of the two transmission pipes penetrate through a second chute 19, the inner walls of the two transmission pipes are provided with one-way water outlet valves, the top ends of the two pistons are fixed with piston rods 24, the outer ends of the two piston rods 24 penetrate through the top end of a base 20, the free ends of the two piston rods 24 are fixed with first cross rods 23, the two first cross rods 23 are located in the second chute 19, the outer ends of the two sliding blocks 21 are provided with rollers 22, the guide ring 12 is made of elastic rubber, the inner wall of the guide ring 12 is in a wedge shape with a wide top end and a narrow bottom end, the outer pipe 15 is inserted into the first groove 13, the outer pipe 15 is limited and fixed through the elasticity of the guide ring 12, the sliding blocks 21 are located on the inner wall of the first chute 18, when the drill body 11 drills to a core, the outer pipe 15 is rotated to enable the sliding blocks 21 to be located at the center of the first chute 18, the outer pipe 15 is pulled upwards to enable the sliding blocks 21 to slide from the first chute 18 to the second chute 19, first horizontal pole 23 pushes down this moment, makes the inside water of base 20 spout through piston rod 24 and piston, plays the effect of disturbance soil, and through such mode, makes soil pass through water conservancy diversion circle 12 spacing drop to first recess 13 inside, through such mode, when taking a sample to the ground core, prevents that the soil on top from dropping to the inside not accurate inspection result that causes of first recess 13, uses more stably.

The working principle of the utility model is as follows:

the first step is as follows: when the body of rod 14 is rotating downwards, two sliders 21 are located two first spout 18 inner walls this moment, after drilling is completed, rotate outer tube 15 this moment, make slider 21 slide to first spout 18 center department, thereby upwards stimulate outer tube 15, two sliders 21 are located the inside slip of second spout 19 this moment, make first recess 13 expose, thereby make the rock soil core fall to first recess 13 inside, play the effect of water conservancy diversion through first recess 13, after the collection is completed, push down outer tube 15 to first recess 13 inside and rotate, make slider 21 block first spout 18 inner walls, through such a mode, play the effect of collecting the rock soil core, traditional equipment relatively, this equipment avoids the soil on top to fall to first recess 13 inside when collecting, prevent that the inspection result that leads to in falling to first recess 13 because of the top soil is inaccurate.

The second step is that: the first cross rod 23 is pressed down by the sliding block 21 sliding downwards on the inner wall of the second sliding chute 19, and the piston is positioned on the inner wall of the base 20 and slides downwards, so that the water in the base is sprayed out through the transmission pipe, and the effect of slightly disturbing the soil layer is achieved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a ground core sample drill bit with double-barrelled mechanism of light disturbance, includes bores body (11), first recess (13) have been seted up on boring body (11) top, bore body (11) top and be fixed with water conservancy diversion circle (12), its characterized in that: a rod body (14) is fixed on the inner wall of the first groove (13), two sliding blocks (21) are fixed on the side wall of the first groove (13), the first groove (13) is sleeved with an outer pipe (15) through two sliding blocks (21), a second groove (16) is formed in the inner wall of the outer tube (15), two first sliding grooves (18) which are symmetrically distributed are formed in the inner wall of the second groove (16), second sliding grooves (19) are formed in the bottom ends of the two first sliding grooves (18), the two sliding blocks (21) are located in the first sliding grooves (18) to slide, the second groove (16) top is provided with a through hole (17) matched with the size of the rod body (14), the bottom ends of the inner walls of the two second sliding grooves (19) are respectively fixed with a base (20), the inner walls of the two bases (20) slide to form a piston, and the outer ends of the two bases (20) are respectively provided with a transmission pipe.

2. The rock core sampling drill bit with the light-disturbance double-tube mechanism is characterized in that: the outer ends of the two transmission pipes penetrate through a second sliding groove (19), and the inner walls of the two transmission pipes are provided with one-way water outlet valves.

3. The rock core sampling drill bit with the light-disturbance double-tube mechanism is characterized in that: piston rods (24) are fixed at the top ends of the two pistons, and the outer ends of the two piston rods (24) penetrate through the top end of the base (20).

4. The rock core sampling drill bit with the light-disturbance double-tube mechanism is characterized in that: the free tail ends of the two piston rods (24) are respectively fixed with a first cross rod (23), and the two first cross rods (23) are respectively positioned in the second sliding grooves (19).

5. The rock core sampling drill bit with the light-disturbance double-tube mechanism is characterized in that: the outer ends of the two sliding blocks (21) are provided with rollers (22).

6. The rock core sampling drill bit with the light-disturbance double-tube mechanism is characterized in that: the flow guide ring (12) is made of elastic rubber, and the inner wall of the flow guide ring is in a wedge shape with a wider top end and a narrower bottom end.