Sampling device suitable for repeated use of knapsack drill

Abstract

The utility model discloses a sampling device suitable for repeated use of a knapsack drill, which comprises an outer drill pipe, an annular conical drill bit, a semicircular sampling pipe, an upper connecting seat, a lower connecting seat and an anti-falling claw pin mechanism, and the annular conical drill bit is mounted at the lower end of the outer drill pipe in a threaded manner. According to the utility model, the two semicircular stainless steel pipes are utilized and spliced to form the sampling pipe, so that the sampling pipe can be repeatedly used, and the two semicircular sampling pipes can be quickly detached, so that a soil sample can be quickly taken out, the sampling pipe can be conveniently used by a worker, and the situation of waste of the sampling pipe is avoided; meanwhile, waste of the sampling pipe can be avoided through multiple sampling, and the sampling cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of soil detection equipment, in particular to a sampling device suitable for repeated use of a backpack drill. Background Art

[0002] Soil sampling for geological exploration refers to obtaining soil samples for analysis and testing to determine the geological characteristics, soil properties, mineral quality and other information of a certain area. Most of the existing soil sampling uses portable soil samplers, which are compact, easy to carry, low in cost and convenient to use.

[0003] When using a handheld hydraulic columnar soil sampling drill to sample the soil, the sampling tube installed inside the drill pipe is made of PVC and is a disposable item. After sampling, the PVC sampling tube is broken and the sample is taken out. This results in the need to carry a large number of PVC sampling tubes when sampling. Although the weight is light, the number is large and it occupies a large space. In addition, the one-time use of the PVC sampling tube leads to a gradual increase in cost when it is used for a long time, resulting in serious waste. Utility Model Content

[0004] To solve the problems raised in the above background technology. The utility model provides a sampling device suitable for backpack drilling, which can be used for sampling tubes composed of two semicircular stainless steel tubes, and can solve the problem that the PVC sampling tube in the prior art cannot be reused, causing the sampling cost to gradually increase with the number of sampling times, and the waste problem caused by the need to break the PVC tube when taking out the sample.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is a sampling device suitable for repeated use of a backpack drill, comprising an outer drill tube and an annular cone drill bit, wherein the annular cone drill bit is threadedly mounted at the lower end of the outer drill tube, and further comprising:

[0006] Semicircular sampling tubes are located inside the outer drill pipe. There are two of them and they can be spliced ​​into a circular sampling tube. They are made of 402 stainless steel.

[0007] The upper connecting seat is located at the upper end of the semicircular sampling tube and is threadedly connected to the upper end of the circular sampling tube formed by splicing the two semicircular sampling tubes. A hollow stud is arranged at the upper end of the upper connecting seat, and the inner diameter of the hollow stud is smaller than the inner diameter of the semicircular sampling tube.

[0008] The lower connecting seat is located at the lower end of the semicircular sampling tube and is threadedly connected to the lower end of the circular sampling tube formed by splicing the two semicircular sampling tubes. The lower connecting seat is movably inserted into the conical drill bit of the ring, and its inner diameter is the same as the inner diameter of the semicircular sampling tube.

[0009] The anti-drop claw pin mechanism is located in the lower connecting seat and includes:

[0010] The claw pin circular holes are opened on the inner surface of the lower connecting seat and are evenly distributed. The inclined round pins are slidably installed inside the claw pins, and the inclined surface of the inclined round pins faces downwards.

[0011] The adjusting cavity is opened inside the lower connecting seat and is evenly distributed and communicated with the claw pin circular hole. An adjusting rod is arranged inside the adjusting cavity. The adjusting rod is arranged vertically and extends out of the lower connecting seat. An adjusting plate is arranged at the upper end thereof, and an adjusting ring is slidably mounted thereon. Adjusting connecting rods are respectively arranged between the adjusting plate, the adjusting ring and the inclined circular pin.

[0012] The spring cavity is arranged below the adjusting cavity, and a compression spring is arranged inside the spring cavity. The compression spring is sleeved on the adjusting rod. A spring baffle is arranged at the lower end of the compression spring, and the spring baffle is installed on the adjusting rod.

[0013] As a sampling device suitable for repeated use of a backpack drill, the outer diameters of the upper connecting seat, the lower connecting seat and the semicircular sampling tube are smaller than the inner diameter of the outer drill tube.

[0014] As a sampling device suitable for repeated use of a backpack drill, the hollow stud is threadedly connected to the inner push rod of a handheld hydraulic columnar soil sampling drill, so that a circular sampling tube formed by splicing two semicircular sampling tubes is fixed in an outer drill tube and an annular cone drill bit.

[0015] As a sampling device suitable for repeated use of a backpack drill, the compression spring is always in a compressed state.

[0016] As a sampling device suitable for repeated use of a backpack drill, the lower connecting seat is movably inserted in the annular cone drill bit, and the annular cone drill bit is aligned with a circular sampling tube formed by splicing two semicircular sampling tubes.

[0017] As a sampling device suitable for repeated use of a backpack drill, the adjusting rod is in active contact with the annular cone drill bit and is squeezed by the inner push rod of the sampling drill to shrink it into the lower connecting seat and drive the inclined round pin to shrink into the claw pin round hole.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. Use two semicircular stainless steel pipes and splice them to form a sampling tube, so that the sampling tube can be reused, and the two semicircular sampling tubes can be quickly disassembled so that soil samples can be quickly taken out, which is convenient for the staff to use and avoids the waste of sampling tubes. At the same time, multiple sampling can avoid the waste of sampling tubes and save sampling costs.

[0020] 2. The steel pipe made of stainless steel can prevent it from rusting, which may cause the sample to come into contact with rust and be contaminated, thus ensuring the accuracy of the sample.

[0021] 3. Using stainless steel pipes as sampling tubes can take advantage of the strength of the pipes themselves to avoid the situation where the sampling tubes are broken due to excessive soil viscosity.

[0022] 4. By using the setting of the anti-drop claw mechanism, the soil sample inside the sampling tube can be supported by the inclined round pin after sampling is completed, so as to avoid the soil sample from falling off and ensure sufficient sample sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a sampling device suitable for repeated use of a backpack drill according to the utility model;

[0024] Figure 2 It is a schematic diagram of the anti-drop claw pin mechanism of the utility model;

[0025] Figure 3 This utility model Figure 2 Schematic diagram of the middle bevel round pin after shrinkage;

[0026] Figure 4 It is a top view of the lower connecting seat of the utility model;

[0027] In the figure:

[0028] 1. External drill tube; 11. Annular cone drill bit.

[0029] 2. Semicircular sampling tube.

[0030] 3. Upper connecting seat; 31. Hollow stud.

[0031] 4. Lower connecting seat.

[0032] 5. Anti-drop claw pin mechanism; 51. Claw pin round hole; 511. Inclined round pin; 52. Adjustment cavity; 521. Adjustment rod; 522. Adjustment plate; 523. Adjustment ring; 524. Adjustment connecting rod; 53. Spring cavity; 531. Compression spring; 532. Spring baffle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model provides a technical solution, such as Figure 1-Figure 4As shown, a sampling device suitable for repeated use in a backpack drill comprises an outer drill tube 1, an annular cone drill bit 11, the annular cone drill bit 11 is threadedly installed at the lower end of the outer drill tube 1, and also comprises: a semicircular sampling tube 2, which is located in the outer drill tube 1, and the number of which is two and can be spliced ​​into a circular sampling tube, and the material of which is a 402 stainless steel tube; an upper connecting seat 3, which is located at the upper end of the semicircular sampling tube 2 and is threadedly connected to the upper end of the circular sampling tube after the two semicircular sampling tubes 2 are spliced, and a hollow stud 31 is arranged at the upper end of the upper end, and the inner diameter of the hollow stud 31 is smaller than the inner diameter of the semicircular sampling tube 2; a lower connecting seat 4, which is located at the lower end of the semicircular sampling tube 2 and is threadedly connected to the lower end of the circular sampling tube after the two semicircular sampling tubes 2 are spliced, and the lower connecting seat 4 is movably inserted in the annular cone drill bit 11, and the inner diameter of the lower connecting seat 4 is the same as the inner diameter of the semicircular sampling tube 2.

[0035] In the embodiment of the utility model, a circular tube formed by splicing two semicircular sampling tubes 2 is used as the sampling tube, so that the sampling tube can be quickly taken out after the sampling is completed, which is convenient for taking out and storing the samples. At the same time, its material is 402 stainless steel, which can avoid the problem of rust of the sampling tube and avoid contamination of the soil sample. In addition, the sampling tube made of stainless steel can utilize its own strength and wear resistance to prevent the sampling tube from being worn or broken when used multiple times, thereby ensuring the service life of the sampling tube and allowing the sampling tube to be used for a long time.

[0036] In the embodiment of the utility model, the upper connecting seat 3 and the lower connecting seat 4 are threadedly connected with the spliced ​​semicircular sampling tube 2, so that after the two semicircular sampling tubes 2 are spliced ​​into a circular sampling tube, they can be quickly fixed, thereby facilitating the sampling work and the removal of samples from the sampling tube.

[0037] In the embodiment of the utility model, the provision of the hollow stud 31 can facilitate the discharge of air in the sampling tube and can be quickly connected to the external inner push rod, so that the two semicircular sampling tubes 2 can be fixed more stably in the outer drill tube 1 and the annular cone drill bit 11 to ensure the smooth progress of the sampling work.

[0038] The anti-drop claw pin mechanism 5 is located in the lower connecting seat 4, and includes: a claw pin circular hole 51, which is opened on the inner surface of the lower connecting seat 4 and is evenly distributed, and an inclined round pin 511 is slidably installed inside the claw pin hole 51, and the inclined surface of the inclined round pin 511 faces downward; an adjustment cavity 52, which is opened in the lower connecting seat 4 and is evenly distributed, and is connected to the claw pin circular hole 51, and an adjustment rod 521 is arranged inside the adjustment cavity 52, and the adjustment rod 521 is vertically arranged and extends out of the lower connecting seat 4, and an adjustment plate 522 is arranged at the upper end, and an adjustment ring 523 is slidably mounted on the adjustment plate 522, and an adjustment connecting rod 524 is respectively arranged between the adjustment plate 522, the adjustment ring 523 and the inclined round pin 511; a spring cavity 53, which is arranged below the adjustment cavity 52, and a compression spring 531 is arranged inside the compression spring 531, which is mounted on the adjustment rod 521, and a spring baffle 532 is arranged at the lower end of the compression spring 531, and the spring baffle 532 is installed on the adjustment rod 521.

[0039] In the embodiment of the utility model, the beveled round pin 511 can be quickly retracted into the lower connecting seat 4 by utilizing the sliding cooperation with the claw pin circular hole 51, thereby facilitating the sample to enter the two semicircular sampling tubes 2, and preventing soil from entering the claw pin circular hole 51, preventing the beveled round pin 511 from getting stuck, and ensuring the smooth sliding of the beveled round pin 511.

[0040] In the embodiment of the utility model, the contact between the lower connecting seat 4 and the annular cone drill bit 11 is utilized, and the extrusion of the external inner push rod is used to maintain a fixed extrusion pressure between the lower connecting seat 4 and the annular cone drill bit 11 for fixation, so that after the adjusting rod 521 contacts the annular cone drill bit 11, the adjusting rod 521 can be squeezed to shrink the adjusting rod 521, thereby driving the adjusting plate 522 to rise, and the adjusting connecting rod 524 is used to drive the inclined circular pin 511 to shrink, so that the sample can quickly enter the sampling tube during sampling, avoiding the obstruction of the inclined circular pin 511 to the soil sample.

[0041] In the embodiment of the utility model, when sampling is completed and the sampling tube is ready to be taken out, as the inner push rod drives the upper connecting seat 3 to rise, the thrust on the lower connecting seat 4 disappears, and the compression spring 531 pushes the spring baffle 532 to move downward, so that the adjustment rod 521 extends downward, and then the inclined round pin 511 is extended by the push of the adjusting connecting rod 524, and then the soil sample is squeezed by the extension of the inclined round pin 511 to prevent the soil sample from falling off.

[0042] As a sampling device suitable for repeated use of a backpack drill, the outer diameters of the upper connecting seat 3, the lower connecting seat 4 and the semicircular sampling tube 2 are smaller than the inner diameter of the outer drill tube 1; multiple samplings can be performed at the same position, and then the depth of the outer drill tube 1 descending can be used to sample soil layers at different depths, thereby facilitating the removal of soil samples.

[0043] As a sampling device suitable for repeated use of a backpack drill, the utility model is characterized in that the hollow stud 31 is threadedly connected to the inner push rod of the handheld hydraulic columnar soil sampling drill, so that the circular sampling tube formed by splicing two semicircular sampling tubes 2 is fixed in the outer drill tube 1 and the annular cone drill bit 11; the stability of the fixation of the circular sampling tube formed by splicing two semicircular sampling tubes 2 is ensured, so that the soil sample can stably slide between the two semicircular sampling tubes 2.

[0044] As a sampling device suitable for repeated use of a backpack drill, the compression spring 531 is always in a compressed state, so that the compression spring 531 can maintain the maximum elastic force, thereby enabling the inclined round pin 511 to be inserted into the soil to prevent the soil from falling off.

[0045] When using the utility model specifically, the staff installs the annular cone drill bit 11 on the outer drill pipe 1, and docks the two semicircular sampling tubes 2, and then respectively installs the upper connecting seat 3 and the lower connecting seat 4 at both ends of the spliced ​​sampling tubes. After the installation is completed, the spliced ​​sampling tubes are inserted into the outer drill pipe 1. At this time, as the lower connecting seat 4 is inserted into the annular cone drill bit 11, the outer drill pipe 1 is then installed under the driving end of the SD-1 handheld hydraulic columnar soil sampling drill, and the hollow stud 31 is connected to the driving end. At this time, the spliced ​​sampling tubes are fixed in the outer drill pipe 1 by squeezing the upper connecting seat 3.

[0046] As the spliced ​​sampling tubes are fixed, the adjusting rod 521 is squeezed, and then the spring baffle 532 drives the compression spring 531 to contract. At the same time, the adjusting plate 522 rises, and the adjusting connecting rod 524 drives the inclined circular pin 511 to contract, so that it contracts into the claw pin circular hole 51, thereby preventing the inclined circular pin 511 from blocking the soil sample.

[0047] When the outer drill pipe is installed, the staff can control the SD-1 handheld hydraulic columnar soil sampling drill to push the outer drill pipe 1 downward, gradually insert it into the soil, and perform sampling. When the outer drill pipe 1 drops to a certain depth, the current sampling work is completed. The staff removes the SD-1 handheld hydraulic columnar soil sampling drill, and then the spliced ​​sampling tube can be pulled out.

[0048] As the drilling rig is removed, the downward pressure on the spliced ​​sampling tube disappears, and as the sampling tube is pulled out, the lower connecting seat 4 is separated from the annular cone drill bit 11, and then the elasticity of the compression spring 531 is utilized to extend the adjustment rod 521 downward, and the inclined circular pin 511 is extended through the adjustment connecting rod 524 to be inserted into the lower end of the soil sample to prevent the soil sample from falling. Then the sampling tube can be completely pulled out, and then the upper connecting seat 3 and the lower connecting seat 4 are removed, and the sample can be taken out from between the two semicircular sampling tubes 2, and subsequent work such as marking and storage can be carried out.

[0049] Then the staff can dock the two semicircular sampling tubes 2 again, and assemble them through the upper connecting seat 3 and the lower connecting seat 4, and then take out the inner push rod and install it on it. Then the staff takes out the extension tube of the outer drill pipe 1, installs it on the outer drill pipe 1, and inserts the assembled sampling tube into the outer drill pipe 1, and then connects the drilling rig to the extension tube of the outer drill pipe again, and to the extension rod of the inner push rod, and performs deep soil sampling again.

[0050] When the utility model is implemented, the staff can also use a plurality of groups of two semicircular sampling tubes 2 to form a sampling tube for sampling. At the same time, since the subsequent work is relatively cumbersome after the sample is taken out from the outer drill pipe 1, the staff can remove the upper connecting seat 3 and the lower connecting seat 4 one by one, and install the tube cap, so that the sample is temporarily stored in the sampling tube formed by the two semicircular sampling tubes 2. It is only necessary to stick the label of the sample on the sampling tube. This method can shorten the time for staff to collect samples in the field.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device suitable for repeated use of a backpack drill, comprising an outer drill tube and an annular cone drill bit, wherein the annular cone drill bit is threadedly mounted at the lower end of the outer drill tube, characterized in that: Also includes: Semicircular sampling tubes are located inside the outer drill pipe. There are two of them and they can be spliced ​​into a circular sampling tube. They are made of 402 stainless steel. The upper connecting seat is located at the upper end of the semicircular sampling tube and is threadedly connected to the upper end of the circular sampling tube formed by splicing the two semicircular sampling tubes. A hollow stud is arranged at the upper end of the upper connecting seat, and the inner diameter of the hollow stud is smaller than the inner diameter of the semicircular sampling tube. The lower connecting seat is located at the lower end of the semicircular sampling tube and is threadedly connected to the lower end of the circular sampling tube formed by splicing the two semicircular sampling tubes. The lower connecting seat is movably inserted into the conical drill bit of the ring, and its inner diameter is the same as the inner diameter of the semicircular sampling tube. The anti-drop claw pin mechanism is located in the lower connecting seat and includes: The claw pin circular holes are opened on the inner surface of the lower connecting seat and are evenly distributed. The inclined round pins are slidably installed inside the claw pins, and the inclined surface of the inclined round pins faces downwards. The adjusting cavity is opened inside the lower connecting seat and is evenly distributed and communicated with the claw pin circular hole. An adjusting rod is arranged inside the adjusting cavity. The adjusting rod is arranged vertically and extends out of the lower connecting seat. An adjusting plate is arranged at the upper end thereof, and an adjusting ring is slidably mounted thereon. Adjusting connecting rods are respectively arranged between the adjusting plate, the adjusting ring and the inclined circular pin. The spring cavity is arranged below the adjusting cavity, and a compression spring is arranged inside the spring cavity. The compression spring is sleeved on the adjusting rod. A spring baffle is arranged at the lower end of the compression spring, and the spring baffle is installed on the adjusting rod.

2. A sampling device suitable for repeated use of a backpack drill according to claim 1, characterized in that: The outer diameters of the upper connecting seat, the lower connecting seat and the semicircular sampling tube are smaller than the inner diameter of the outer drill pipe.

3. A sampling device suitable for repeated use of a backpack drill according to claim 1, characterized in that: The hollow stud is threadedly connected to the inner push rod of the handheld hydraulic columnar soil sampling drill, so that the circular sampling tube formed by splicing two semicircular sampling tubes is fixed in the outer drill tube and the annular cone drill bit.

4. A sampling device suitable for repeated use of a backpack drill according to claim 1, characterized in that: The compression spring is always in a compressed state.

5. A sampling device suitable for repeated use of a backpack drill according to claim 1, characterized in that: The lower connecting seat is movably inserted in the annular cone drill bit, and the annular cone drill bit is aligned with a circular sampling tube formed by splicing two semicircular sampling tubes.

6. A sampling device suitable for repeated use of a backpack drill according to claim 5, characterized in that: The adjusting rod is in active contact with the annular cone drill bit and is squeezed by the inner push rod of the sampling drill to shrink into the lower connecting seat and drive the inclined round pin to shrink into the claw pin round hole.

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