Drilling equipment suitable for frozen soil geology

Abstract

The invention provides drilling equipment suitable for frozen soil geology, which comprises a central control machine, two handles, an air injection assembly, a linkage sleeve, a sampling mechanism and a drill bit. The two handles are arranged on the two sides of the central control machine respectively, and the linkage sleeve is in linkage connection with the central control machine. According to the drilling equipment suitable for the frozen soil geology, the central control machine, the two handles, the air injection assembly, the storage assembly, the sampling mechanism and the drill bit which are arranged are matched with one another. The sampling device has the function of detaching the sampling device from the drill bit device, and after sampling is completed, the storage assembly is detached and replaced, so that a sample can be rapidly detached and stored, and new sampling work cannot be delayed. By means of the design, the sampling device can effectively solve the problem that when a sampling device in the prior art samples frozen soil, due to the freezing swelling phenomenon, personnel are difficult to take out a soil sample from the sampling drill barrel, and the working efficiency of personnel in frozen soil sampling is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of rock and soil sampling equipment, in particular to a drilling equipment suitable for frozen soil. Background Art

[0002] At present, the commonly used undisturbed sampling methods are the ring knife method and the undisturbed soil sampling tube method. Both methods are based on undisturbed soil sampling methods under normal circumstances (non-freezing conditions) and are not suitable for sampling frozen soil. The ring knife method requires digging a profile pit first, which has the disadvantages of complex operation, high labor intensity, and low soil sampling efficiency. Especially in winter when the soil is at its maximum freezing depth, it is almost impossible to use the ring knife method to sample undisturbed frozen soil: because after the soil is frozen, it is difficult for the ring knife to drive into the hard soil layer, or when driving into the soil layer, the ring knife mouth will roll inward and crack, or the undisturbed soil in the ring knife tube is not easy to cut, etc.; these will affect the subsequent measurement and analysis work. Although the undisturbed soil sampling tube method can obtain soil samples from multiple soil layers at a time and has high soil sampling efficiency, it has the disadvantages of difficulty in pushing out the soil and easy damage to the soil sample. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a drilling device suitable for frozen soil.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A drilling device suitable for frozen soil, including a central control machine, two handles, an air jet assembly, a linkage sleeve, a sampling mechanism and a drill bit. The two handles are respectively arranged on both sides of the central control machine, and the linkage sleeve is linked to the central control machine. The air jet assembly is arranged in the linkage sleeve, and the sampling mechanism is arranged at the bottom of the linkage sleeve through a connecting seat. The drill bit is arranged at the bottom of the sampling mechanism, and the sampling mechanism includes a shell, a locking mechanism and four storage assemblies. The shell is arranged at the bottom of the linkage sleeve, and the locking mechanism is arranged on the connecting seat. Four slots are opened on the shell at equal angles with the linkage sleeve as the center, and the storage assembly is slidably fitted on the side inner wall of the slot. The locking mechanism is detachably connected to the storage assembly.

[0007] Preferably, the storage assembly comprises a movable card seat, two card plates and a sampling barrel. A card slot is provided on the top of the movable card seat, and the locking mechanism is detachably connected to the card slot. The card plate is arranged on the sampling barrel, and the two sampling barrels are buckled with each other. The card plate is detachably connected to the movable card seat.

[0008] Preferably, the storage assembly further comprises an articulated seat and a side slider. The side slider is slidably fitted on the inner wall of the side of the slot. The articulated seat is arranged at the connection between the movable card seat and the side slider.

[0009] Preferably, the jet assembly includes a heater, a one-way electric air valve and a telescopic cylinder rod. The telescopic cylinder rod is arranged in a linkage sleeve, and the movable end of the telescopic cylinder rod is tightly fitted with the inner wall of the linkage sleeve. The heater is sleeved on the linkage sleeve, and the heater is located at the bottom of the telescopic cylinder rod. The one-way electric air valve is arranged on the linkage sleeve.

[0010] Preferably, the sampling mechanism comprises a telescopic air pipe, a cross bracket and four slideways. The cross bracket is connected to the drill bit, and the slideway is arranged on the inner side of the housing. The cross bracket is slidably fitted on the slideway, and the cross bracket has limit grooves on four sides. The limit grooves are adapted to the sampling barrel, and the four sides of the cross bracket are provided with a plurality of air guide holes. The plurality of air guide holes are communicated with the linkage sleeve, and the air guide holes correspond to the side of the sampling barrel.

[0011] Preferably, the sampling mechanism further comprises a guide seat, and the guide seat is arranged between the limiting groove and the drill bit.

[0012] Preferably, the locking mechanism comprises a plurality of auxiliary telescopic rods and a clamping ring. The auxiliary telescopic rod is arranged on a connecting seat. The clamping ring is arranged on a movable end of the auxiliary telescopic rod and is detachably clamped with a clamping groove.

[0013] Preferably, the sampling mechanism further comprises a telescopic air tube, one end of which is communicated with the linkage sleeve and the other end of which is connected with the cross bracket.

[0014] (III) Beneficial effects

[0015] The present invention provides a drilling device suitable for frozen soil. It has the following beneficial effects:

[0016] 1. The drilling equipment suitable for frozen soil cooperates with each other through the central control machine, two handles, jet assembly, storage assembly, sampling mechanism and drill bit. The present invention has the function of disassembling the sampling device from the drill bit device. After the sampling is completed, the storage assembly can be disassembled and replaced to quickly complete the disassembly and preservation of the sample without delaying new sampling work. Through such a design, the present invention can effectively solve the problem that when the sampling device in the prior art is sampling frozen soil, it is difficult for personnel to take out the soil sample from the sampling drill barrel due to the occurrence of frost heave phenomenon, which greatly improves the work efficiency of personnel in frozen soil sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first stereogram of the present invention;

[0018] Figure 2 is a second stereogram of the present invention;

[0019] Figure 3 is a third stereogram of the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 It is a front cross-sectional view of the present invention;

[0022] Figure 6 It is a cross-sectional view of a first partial component of the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle.

[0024] In the figure: 1 central control machine, 2 handle, 3 linkage sleeve, 4 heater, 5 telescopic rod, 6 locking mechanism, 7 clamp ring, 8 storage assembly, 9 shell, 10 drill bit, 11 sampling mechanism, 12 one-way electric air valve, 13 jet assembly, 14 slot, 15 slot, 16 clamp plate, 17 sampling tube, 18 connecting seat, 19 telescopic cylinder rod, 20 slide, 21 cross bracket, 22 guide seat, 23 movable clamp seat, 24 telescopic air pipe, 25 air guide hole, 26 side slide, 27 hinge seat, 28 limit groove, etc. DETAILED DESCRIPTION

[0025] The embodiment of the present invention provides a drilling device suitable for frozen soil, such as Figure 1-7 As shown, it includes a central control machine 1, two handles 2, an air jet assembly 13, a linkage sleeve 3, a sampling mechanism 11 and a drill bit 10. The two handles 2 are respectively arranged on both sides of the central control machine 1, and the linkage sleeve 3 is linked to the central control machine 1. The air jet assembly 13 is arranged in the linkage sleeve 3, and the sampling mechanism 11 is arranged at the bottom end of the linkage sleeve 3 through the connecting seat 18. The drill bit 10 is arranged at the bottom of the sampling mechanism 11, and the sampling mechanism 11 includes a shell 9, a locking mechanism 6 and four storage assemblies 8. The shell 9 is arranged at the bottom of the linkage sleeve 3, and the locking mechanism 6 is arranged on the connecting seat 18. Four slots 14 are opened on the shell 9 at equal angles with the linkage sleeve 3 as the center, and the storage assembly 8 is slidably fitted on the side inner wall of the slot 14. The locking mechanism 6 and the storage assembly 8 are detachably connected.

[0026] The storage assembly 8 includes a movable card seat 23, two card plates 16 and a sampling barrel 17. A card slot 15 is provided on the top of the movable card seat 23, and the locking mechanism 6 is detachably connected to the card slot 15. The card plate 16 is arranged on the sampling barrel 17, and the two sampling barrels 17 are buckled with each other. The card plate 16 is detachably connected to the movable card seat 23.

[0027] The storage assembly 8 further comprises an articulated seat 27 and a side slider 26. The side slider 26 is slidably fitted on the side inner wall of the slot 14. The articulated seat 27 is arranged at the connection between the movable card seat 23 and the side slider 26.

[0028] The jet assembly 13 includes a heater 4, a one-way electric valve 12 and a telescopic cylinder rod 19. The telescopic cylinder rod 19 is arranged in the linkage sleeve 3, and the movable end of the telescopic cylinder rod 19 is tightly fitted with the inner wall of the linkage sleeve 3. The heater 4 is sleeved on the linkage sleeve 3, and the heater 4 is located at the bottom of the telescopic cylinder rod 19. The one-way electric valve 12 is arranged on the linkage sleeve 3.

[0029] The sampling mechanism 11 includes a telescopic air pipe 24, a cross bracket 21 and four slideways 20. The cross bracket 21 is connected to the drill bit 10, and the slideway 20 is arranged on the inner side of the housing 9. The cross bracket 21 is slidably fitted on the slideway 20, and the four sides of the cross bracket 21 are provided with limit grooves 28. The limit grooves 28 are adapted to the sampling tube 17, and the four sides of the cross bracket 21 are provided with a plurality of air guide holes 25. The plurality of air guide holes 25 are communicated with the linkage sleeve 3, and the air guide holes 25 correspond to the side of the sampling tube 17.

[0030] The sampling mechanism 11 further includes a guide seat 22 , which is disposed between the limiting groove 28 and the drill bit 10 .

[0031] The locking mechanism 6 includes a plurality of auxiliary telescopic rods 5 and a clamping ring 7. The auxiliary telescopic rod 5 is arranged on a connecting seat 18. The clamping ring 7 is arranged on the movable end of the auxiliary telescopic rod 5 and is detachably clamped with the clamping groove 15.

[0032] The sampling mechanism 11 further comprises a telescopic air pipe 24. One end of the telescopic air pipe 24 is communicated with the linkage sleeve 3, and the other end is connected to the cross bracket 21.

[0033] Working principle: When in use, the personnel first stands the present invention on the frozen soil, and then holds the handle 2 to control the linkage sleeve 3 to rotate and press down through the central control machine 1. Due to the hollow design of the drill bit 10, the soil will move down with the drill bit 10 and enter the drill bit 10. As the drill bit 10 continues to go deeper, the air guide hole 25 then guides the soil sample into the four sampling tubes 17. When the sampling is completed, the drill bit 10 and the sampling tube 17 are both inserted into the frozen soil and are difficult to pull out. At this time, the secondary telescopic rod 5 contracts and the clamping ring 7 is retracted. Then the telescopic cylinder rod 19 is controlled to extend, and the gas in the linkage sleeve 3 is squeezed into the cross bracket 21 and the air flow is guided to the surface of the sampling tube 17 through the air guide hole 25, thereby pushing the side wall of the frozen soil. The telescopic cylinder rod 19 is repeatedly controlled to separate the side wall of the frozen soil and the movable holder 23 to squeeze in air, thereby preventing the soil from becoming sticky itself or the negative pressure formed from tightly adsorbing the movable holder 23.

[0034] Then, because the drill bit 10 is often located at a deeper depth, the melted ice and the negative pressure adsorption at the bottom will fix the drill bit 10 more tightly. Therefore, the personnel lift the central control machine 1, and at this time the slide 20 and the housing 9 move up and detach from the drill hole, so that the cross bracket 21 and the drill bit 10 are located in the hole after drilling. Then the personnel use the movable seat 23 in their right hand to move the hinge seat 27 outward on the side of the slot 14, and then bend the movable seat 23 to expose the sampling tube 17. The personnel remove the sampling tube 17 to complete the soil sampling. At the same time, the one-way electric air valve 12 and the heater 4 are controlled to cooperate with the telescopic cylinder rod 19 to work, and then hot air is sprayed into the hole through the air guide hole 25 to increase the temperature in the hole, so that the ice and soil originally frozen with the drill bit 10 can be melted, making it easier for the personnel to pull it out.

[0035] In summary, the drilling equipment suitable for frozen soil cooperates with each other through the central control machine 1, two handles 2, jet assembly 13, storage assembly 8, sampling mechanism 11 and drill bit 10. The present invention has the function of disassembling the sampling device from the drill bit device. After the sampling is completed, the storage assembly 8 can be disassembled and replaced to quickly complete the disassembly and preservation of the sample without delaying the new sampling work. Through such a design, the present invention can effectively solve the problem that when the sampling device in the prior art is sampling frozen soil, it is difficult for personnel to take out the soil sample from the sampling drill barrel due to the occurrence of frost heave phenomenon, which greatly improves the work efficiency of personnel in frozen soil sampling.

Claims

1. A drilling device suitable for frozen soil, characterized in that: The invention comprises a central control machine (1), two handles (2), an air jet assembly (13), a linkage sleeve (3), a sampling mechanism (11) and a drill bit (10), wherein the two handles (2) are respectively arranged on both sides of the central control machine (1), the linkage sleeve (3) is linked to the central control machine (1), the air jet assembly (13) is arranged in the linkage sleeve (3), the sampling mechanism (11) is arranged at the bottom end of the linkage sleeve (3) through a connecting seat (18), and the drill bit (10) is arranged in the sampling mechanism (11). The sampling mechanism (11) comprises a shell (9), a locking mechanism (6) and four storage components (8); the shell (9) is arranged at the bottom of the linkage sleeve (3); the locking mechanism (6) is arranged on a connecting seat (18); four slots (14) are provided on the shell (9) at equal angles with the linkage sleeve (3) as the center; the storage components (8) are slidably fitted on the side inner walls of the slots (14); and the locking mechanism (6) and the storage components (8) are detachably connected.

2. The drilling equipment suitable for frozen soil according to claim 1, characterized in that: The storage assembly (8) comprises a movable card seat (23), two card plates (16) and a sampling barrel (17); a card slot (15) is provided on the top of the movable card seat (23); the locking mechanism (6) is detachably connected to the card slot (15); the card plate (16) is arranged on the sampling barrel (17); the two sampling barrels (17) are interlocked; and the card plate (16) is detachably connected to the movable card seat (23).

3. The drilling equipment suitable for frozen soil according to claim 2, characterized in that: The storage assembly (8) further comprises a hinge seat (27) and a side slide block (26), wherein the side slide block (26) is slidably fitted on the side inner wall of the slot (14), and the hinge seat (27) is arranged at the connection between the movable card seat (23) and the side slide block (26).

4. The drilling equipment suitable for frozen soil according to claim 3, characterized in that: The jet assembly (13) comprises a heater (4), a one-way electric air valve (12) and a telescopic cylinder rod (19); the telescopic cylinder rod (19) is arranged in a linkage sleeve (3); the movable end of the telescopic cylinder rod (19) is tightly fitted with the inner wall of the linkage sleeve (3); the heater (4) is sleeved on the linkage sleeve (3); the heater (4) is located at the bottom of the telescopic cylinder rod (19); and the one-way electric air valve (12) is arranged on the linkage sleeve (3).

5. The drilling equipment suitable for frozen soil according to claim 4, characterized in that: The sampling mechanism (11) comprises a telescopic air pipe (24), a cross bracket (21) and four slideways (20), wherein the cross bracket (21) is connected to the drill bit (10), the slideway (20) is arranged on the inner side of the housing (9), the cross bracket (21) is slidably matched on the slideway (20), the cross bracket (21) is provided with limiting grooves (28) on four sides, the limiting grooves (28) are adapted to the sampling tube (17), the cross bracket (21) is provided with a plurality of air guide holes (25) on four sides, the plurality of air guide holes (25) are communicated with the linkage sleeve (3), and the air guide holes (25) correspond to the side surfaces of the sampling tube (17).

6. The drilling equipment suitable for frozen soil according to claim 5, characterized in that: The sampling mechanism (11) further comprises a guide seat (22), wherein the guide seat (22) is arranged between the limiting groove (28) and the drill bit (10).

7. The drilling equipment suitable for frozen soil according to claim 6, characterized in that: The locking mechanism (6) comprises a plurality of auxiliary telescopic rods (5) and a clamping ring (7); the auxiliary telescopic rods (5) are arranged on a connecting seat (18); and the clamping ring (7) is arranged on a movable end of the auxiliary telescopic rod (5) and is detachably clamped with a clamping groove (15).

8. The drilling equipment suitable for frozen soil according to claim 7, characterized in that: The sampling mechanism (11) further comprises a telescopic air pipe (24), one end of which is in communication with the linkage sleeve (3) and the other end of which is connected to the cross bracket (21).

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