CN214538632U

CN214538632U - Geotechnical engineering investigation geotome

Info

Publication number: CN214538632U
Application number: CN202120492820.2U
Authority: CN
Inventors: 赵刘会; 李哲; 折向毅; 杜成涛; 王鹏
Original assignee: Northwest Nonferrous Metals Survey Engineering Co ltd
Current assignee: Northwest Nonferrous Metals Survey Engineering Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-10-29
Anticipated expiration: 2031-03-08

Abstract

The utility model relates to a geotechnical engineering reconnaissance geotome, its technical field who is applied to drilling equipment, it includes connecting rod, a core section of thick bamboo, coring bit and gasbag, closed, the lower extreme opening in a core section of thick bamboo upper end, the connecting rod is located a core section of thick bamboo top and is connected with a core section of thick bamboo upper end, coring bit is located a core section of thick bamboo below and is connected with a core section of thick bamboo lower extreme, the gasbag is arranged in a core section of thick bamboo, be provided with the breather pipe on the gasbag, the breather pipe passes a core section of thick bamboo and air supply intercommunication. This application has the mode of taking out simply, and convenient operation is littleer to soil layer itself destruction, and the soil layer of taking out is difficult to the dispersion, and stability is good, has improved the quality of taking out, conveniently carries out follow-up analysis's effect.

Description

Geotechnical engineering investigation geotome

Technical Field

The application relates to the technical field of drilling equipment, in particular to a geotechnical engineering investigation geotome.

Background

Along with the continuous and rapid development of economy, the requirements of China on materials such as steel, aluminum, copper and the like are increasingly intensified, and when the materials such as the steel, the aluminum, the copper and the like are refined, the raw materials of various mineral products need to be sampled and analyzed, so that the content of the raw materials of the mineral products is determined, and the sampling of the raw materials of the mineral products becomes an important problem concerned by various large smelting enterprises.

In the related art, chinese patent application No. CN201821715712.1 discloses a soil sampling drill barrel, which includes: the drill cylinder body is cylindrical and has a preset rotation direction; and the helix, the helix connect in the internal surface of boring a body, the helix is in the internal surface of boring a body forms spiral helicine arch, the precession direction of helix with predetermine the direction of rotation phase-match, so that work as when boring a body when rotatory to predetermineeing the direction of rotation, the helix can draw soil extremely in the soil sample bores a section of thick bamboo.

The principle of the scheme is as follows: bore a body and be the tube-shape, bore a body and have predetermined direction of rotation, the helix is connected in the internal surface that bores a body, and the helix forms spiral helicine arch at the internal surface that bores a body, the precession direction and the predetermined direction of rotation phase-match of helix to when making bore a body rotatory to predetermined direction of rotation, the helix can be drawn soil to the soil sample and bore in the section of thick bamboo.

To the correlation technique among the above-mentioned, bore into soil when making things convenient for the sample through setting up the helix on the inner wall of boring a section of thick bamboo body, owing to there is the existence of helix for behind the soil embedding helix place recess, cohesion between boring a section of thick bamboo is stronger, when taking out soil, needs make soil drop from boring a section of thick bamboo through the mode of knocking, leads to the soil layer dispersion that drops, and the inventor thinks that there is the soil layer inconvenient of taking out in boring a section of thick bamboo, leads to the easy defect of dispersion of soil layer.

SUMMERY OF THE UTILITY MODEL

In order to improve to have the soil layer to take out inconvenient in the section of thick bamboo of boring, lead to the easy problem of dispersion of soil layer, this application provides a geotechnical engineering reconnaissance geotome.

The application provides a geotechnical engineering reconnaissance geotome adopts following technical scheme:

the utility model provides a geotechnical engineering reconnaissance geotome, includes connecting rod, a core section of thick bamboo, coring bit and gasbag, closed, the lower extreme opening in a core section of thick bamboo upper end, the connecting rod is located a core section of thick bamboo top and is connected with a core section of thick bamboo upper end, coring bit is located a core section of thick bamboo below and is connected with a core section of thick bamboo lower extreme, the gasbag is arranged in a core section of thick bamboo, be provided with the breather pipe on the gasbag, the breather pipe passes a core section of thick bamboo and air supply intercommunication.

Through adopting the above-mentioned technical scheme, set up the gasbag in coring barrel, the gasbag passes through breather pipe and air supply intercommunication, during the sample, send coring barrel into the underground through the connecting rod, drill into the soil layer through coring bit and take a sample, coring barrel is arranged in to the soil layer of taking out, after the sample, aerify the gasbag through the air supply, coring barrel and coring bit are released to the soil layer that the gasbag inflation produced, compare in knocking coring barrel, destroy littleer to soil layer itself, the soil layer of taking out is difficult to the dispersion, good stability, conveniently carry out follow-up analysis, and simultaneously, to the great soil layer of humidity and viscosity, all can wholly take out and the coring barrel remains still less, it is effectual to take out, the quality of taking out has been improved, the totality has the mode of taking out simple, convenient operation, the effect of high quality.

Preferably, a limiting ring and a sliding plate are arranged in the core barrel, the sliding plate is located below the air bag and is in sliding connection with the inner wall of the core barrel, and the limiting ring is located between the sliding plate and the air bag and is fixedly connected with the inner wall of the core barrel.

Through adopting above-mentioned technical scheme, in the sample, the soil layer is constantly to the extrusion of coring section of thick bamboo upper end, promotes the slide and constantly upwards to supporting tight spacing ring, has avoided excessively supporting tightly to the gasbag in the sample to a certain extent, reduces the gasbag and damages, improves gasbag life, simultaneously, when taking out the soil layer again from coring section of thick bamboo, the slide is more even in the gasbag to the pressure of soil layer, can reduce the influence to soft soil layer, improves the quality that the soil layer was taken out.

Preferably, a limiting piece is arranged on the vent pipe and used for limiting the air bag to be always positioned close to the upper end of the coring barrel.

Through adopting above-mentioned technical scheme, in the sample, the gasbag is because action of gravity can drop downwards, is drawn into wherein by the soil layer of upward movement easily, and the distance that the gasbag dropped downwards has been restricted in the setting of restriction piece to the reduction takes place by the condition that the soil layer was drawn into.

Preferably, the limiting part is a clamping ring, and the clamping ring is located above the coring barrel and fixedly sleeved on the vent pipe.

Through adopting above-mentioned technical scheme, the gasbag drops downwards and drives the snap ring whereabouts, and until the snap ring supports tight core barrel upper end, the gasbag then can not continue the whereabouts to with gasbag position restriction, simple structure, with low costs.

Preferably, the outer wall of the upper end of the coring barrel is integrally provided with an installation barrel, the installation barrel is sleeved on the connecting rod, the installation barrel is provided with a bolt, and the bolt penetrates through the connecting rod and the installation barrel.

Through adopting above-mentioned technical scheme, in the sample, connecting rod and coring section of thick bamboo can rotate along with coring bit, and the bolt passes connecting rod and installation section of thick bamboo, and is fixed with connecting rod and installation section of thick bamboo, has avoided rotating to a certain extent and has leaded to connecting rod and installation section of thick bamboo to loosen, bolt easy to assemble simultaneously and dismantlement.

Preferably, the coring bit is cylindrical, and one end of the coring bit is a sawtooth cutting edge, and the other end of the coring bit is fixedly connected with the coring barrel.

Through adopting above-mentioned technical scheme, the sawtooth blade of coring bit constantly drills into to the soil layer, and the soil layer in the coring bit upwards gets into in the core barrel, makes things convenient for the sample on soil layer.

Preferably, the inner diameter and the outer diameter of the core barrel and the core drill bit are the same.

Through adopting above-mentioned technical scheme, the internal diameter and the external diameter homogeneous phase that set up core barrel and coring bit, the soil layer is little by the resistance of coring bit inside upwards getting into core barrel, can improve coring bit rate of creeping into down, improves sampling efficiency.

Preferably, one end of the connecting rod, which is far away from the core barrel, is provided with a shaft connector.

Through adopting above-mentioned technical scheme, the setting of coupling makes things convenient for the connecting rod to rotate with the external world and sets up and be connected.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air bag is inflated through the air source, the taken soil layer is pushed out of the coring barrel and the coring bit by the pressure generated by expansion of the air bag, and compared with the method of knocking the coring barrel, the damage to the soil layer is smaller, the taken soil layer is not easy to disperse, the stability is good, the subsequent analysis is convenient to carry out, meanwhile, the soil layer with higher humidity and viscosity can be taken out integrally, less residues are left in the coring barrel, the taking effect is good, the taking quality is improved, and the overall effect of simple taking-out mode, convenient operation and high quality is achieved;

2. in the sample, the soil layer is constantly to the extrusion of coring section of thick bamboo upper end, promotes the slide and constantly upwards to supporting tight spacing ring, has avoided in the sample to a certain extent excessively to the gasbag to support tightly, reduces the gasbag and damages, improves gasbag life, simultaneously, when taking out the soil layer in the coring section of thick bamboo again, the slide is more even in the gasbag to the pressure of soil layer, can reduce the influence to soft soil layer, improves the quality that the soil layer was taken out.

Drawings

Fig. 1 is an overall schematic view of a geotechnical engineering investigation geotome according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a stop collar and a slide plate according to an embodiment of the present application.

Description of reference numerals: 1. a connecting rod; 2. a core taking barrel; 21. mounting the cylinder; 22. a bolt; 23. a shaft coupling; 24. a limiting ring; 25. a slide plate; 3. a coring bit; 31. a sawtooth cutting edge; 4. an air bag; 41. a breather pipe; 411. a limiting member; 4111. a snap ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses geotechnical engineering reconnaissance geotome. Referring to fig. 1 and 2, including connecting rod 1, a core barrel 2, coring bit 3 and gasbag 4, core barrel 2 is cylindric and upper end closed, lower extreme opening, and connecting rod 1 installs in core barrel 2 upper end, and coring bit 3 installs in core barrel 2 lower extreme, and gasbag 4 is arranged in core barrel 2, is provided with breather pipe 41 on the gasbag 4, and breather pipe 41 passes core barrel 2 and air supply intercommunication.

Referring to fig. 1, an installation cylinder 21 is integrally arranged on the outer wall of the upper end of a coring cylinder 2, the installation cylinder 21 is hollow and sleeved on a connecting rod 1, a bolt 22 is arranged on the installation cylinder 21, and the bolt 22 horizontally penetrates through the connecting rod 1 and the installation cylinder 21 to fix the connecting rod 1 and the installation cylinder 21; one end of the connecting rod 1 departing from the core barrel 2 is provided with a shaft connector 23 which is connected with the external rotation device.

Referring to fig. 1 and 2, the vent pipe 41 is provided with a limiting part 411, the limiting part 411 is arranged as a clamping ring 4111, the clamping ring 4111 is positioned above the core barrel 2 and is adhesively sleeved on the vent pipe 41, the air bag 4 falls downwards to drive the clamping ring 4111 to fall down until the clamping ring 4111 abuts against the upper end of the core barrel 2, and the air bag 4 cannot continuously fall down; a limiting ring 24 and a sliding plate 25 are arranged in the core barrel 2, the sliding plate 25 is positioned below the air bag 4 and is in sliding connection with the inner wall of the core barrel 2, the upper end of the sliding plate 25 is adhered to the air bag 4, the limiting ring 24 is positioned between the sliding plate 25 and the air bag 4 and is welded with the inner wall of the core barrel 2, so that the air bag 4 is positioned between the limiting ring 24 and the upper end of the core barrel 2, and the sliding plate 25 is positioned below the limiting ring 24; in the sample, the soil layer is constantly to the extrusion of coring section of thick bamboo 2 upper end, promotes slide 25 and constantly upwards until supporting stop collar 24, when taking out the soil layer from coring section of thick bamboo 2, aerifys gasbag 4 through the air supply, and the pressure that gasbag 4 inflation produced promotes slide 25 and pushes out coring section of thick bamboo 2 and coring bit 3 with the soil layer of taking out.

Referring to fig. 1, coring bit 3 is cylindric, and 3 one end of coring bit is sawtooth blade 31, the other end and the welding of 2 lower extremes of coring barrel, and coring barrel 2 is the same with coring bit 3's internal diameter and external diameter homogeneous, and in the sample, coring bit 3's sawtooth blade 31 constantly drills into to the soil layer, and the soil layer is by coring bit 3 is interior to the enterprising coring barrel 2 of going into.

The implementation principle of the geotechnical engineering investigation geotome of the embodiment of the application is as follows: during sampling: the shaft connector 23 on the connecting rod 1 is connected with an external rotating device, the coring bit 3 is vertically downward, the external rotating device drives the sampling bit to rotate, the sawtooth cutting edge 31 of the coring bit 3 continuously drills into a soil layer, and the soil layer drills into the coring barrel 2 from the inside to the top of the coring bit 3; after sampling, the sampling drill is taken out of the soil layer, the air bag 4 is inflated through the vent pipe 41, and the pressure generated by the expansion of the air bag 4 pushes the sliding plate 25 to push the taken soil layer out of the coring barrel 2 and the coring bit 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a geotechnical engineering reconnaissance geotome which characterized in that: including connecting rod (1), a core barrel (2), coring bit (3) and gasbag (4), core barrel (2) upper end is closed, the lower extreme opening, connecting rod (1) is located core barrel (2) top and is connected with core barrel (2) upper end, coring bit (3) are located core barrel (2) below and are connected with core barrel (2) lower extreme, core barrel (2) is arranged in gasbag (4), be provided with breather pipe (41) on gasbag (4), breather pipe (41) pass core barrel (2) and air supply intercommunication.

2. The geotechnical engineering investigation geotome of claim 1, wherein: a limiting ring (24) and a sliding plate (25) are arranged in the core taking barrel (2), the sliding plate (25) is located below the air bag (4) and is in sliding connection with the inner wall of the core taking barrel (2), and the limiting ring (24) is located between the sliding plate (25) and the air bag (4) and is fixedly connected with the inner wall of the core taking barrel (2).

3. The geotechnical engineering investigation geotome of claim 1, wherein: the breather pipe (41) is provided with a limiting piece (411) used for limiting the air bag (4) to be always positioned close to the upper end of the coring barrel (2).

4. The geotechnical engineering investigation geotome of claim 3, wherein: the limiting piece (411) is arranged to be a clamping ring (4111), and the clamping ring (4111) is located above the core taking barrel (2) and fixedly sleeved on the vent pipe (41).

5. The geotechnical engineering investigation geotome of claim 1, wherein: the core barrel is characterized in that an installation barrel (21) is integrally arranged on the outer wall of the upper end of the core barrel (2), the installation barrel (21) is sleeved on the connecting rod (1), a bolt (22) is arranged on the installation barrel (21), and the bolt (22) penetrates through the connecting rod (1) and the installation barrel (21).

6. The geotechnical engineering investigation geotome of claim 1, wherein: coring bit (3) are cylindric, coring bit (3) one end is sawtooth blade (31), the other end and coring section of thick bamboo (2) fixed connection.

7. The geotechnical engineering investigation geotome of claim 6, wherein: the inner diameter and the outer diameter of the coring barrel (2) and the coring bit (3) are the same.

8. The geotechnical engineering investigation geotome of claim 1, wherein: and one end of the connecting rod (1) departing from the core taking barrel (2) is provided with a shaft connector (23).