Geological exploration sampling device

Abstract

The utility model discloses a geological exploration sampling device belongs to geological exploration equipment technical field. Its solved the current impact type manual soil sampler in application, the problem that exists, the impact vibration is bigger, sampling cylinder is not convenient to take out soil sample and impact pipe and sampling cylinder are not convenient to dismouting. Its main include sampling cylinder and impact pipe, the top fixedly connected with inner rod of sampling cylinder, the inner rod inserts the impact pipe, and the top of inner rod is detachably installed with upper limit block, and the outer diameter of upper limit block is greater than the outer diameter of inner rod, the bottom detachably installed with lower limit block of impact pipe, and the middle part of lower limit block is opened limit hole, and the diameter of limit hole is less than the outer diameter of upper limit block, and the inner rod passes through the limit hole of lower limit block, the buffer and the backing pad are sleeved on the inner rod, and the buffer is between the backing pad and the top surface of sampling cylinder, and the backing pad is at the downside of impact pipe.

Description

Technical Field

[0001] This utility model belongs to the technical field of geological exploration equipment, and more specifically, it relates to a geological exploration sampling device. Background Technology

[0002] During field geological exploration, it is often necessary to sample soil at a certain depth. Soil samplers are typically used for this purpose. A soil sampler is a tool used to obtain undisturbed or disturbed soil and sediment samples from the surface or a certain depth underground. Soil samplers can be divided into manual soil samplers and powered soil samplers. Manual soil samplers are more convenient to carry than powered soil samplers (such as drilling rigs), especially in geological exploration in complex field environments.

[0003] The impact-type manual soil sampler is a common type of manual soil sampler. It uses an impact tube to repeatedly strike a sampling head, driving the sampling tube directly below the soil surface for sample collection. It can sample soil at relatively deep depths. However, current impact-type manual soil samplers suffer from significant vibration during use. The impact tube generates a large recoil force upon impacting the sampling head, which is directly transmitted to the operator's arm, easily leading to operator fatigue and even injury, resulting in poor comfort during prolonged operation. Another issue is the difficulty in removing soil samples from the sampling tube. Often, the soil sample is shaken out by the impact tube's vibration, which is inconvenient and sometimes leaves residual soil. Furthermore, the impact tube and sampling tube are difficult to assemble and disassemble. Summary of the Invention

[0004] The purpose of this invention is to provide a geological exploration sampling device to overcome the problems of large impact vibration, inconvenience in removing soil samples from the sampling tube, and inconvenience in disassembling and assembling the impact tube and sampling tube in the application of current impact manual soil samplers.

[0005] This utility model is achieved using the following technical solution: a geological exploration sampling device, comprising a sampling cylinder and an impact tube; an inner rod is fixedly connected to the top of the sampling cylinder, the inner rod is inserted into the impact tube, an upper limit block is detachably installed on the top of the inner rod, the outer diameter of the upper limit block is larger than the outer diameter of the inner rod, a lower limit block is detachably installed on the bottom of the impact tube, a limiting through hole is opened in the middle of the lower limit block, the diameter of the limiting through hole is smaller than the outer diameter of the upper limit block, the inner rod passes through the limiting through hole of the lower limit block; a buffer and a pad are fitted on the inner rod, the buffer is between the pad and the top surface of the sampling cylinder, and the pad is on the lower side of the impact tube.

[0006] Furthermore, the upper limit block includes an upper limit cylinder, a top cover is installed on the top of the upper limit cylinder, the inner wall of the upper limit cylinder has an internal thread, the upper side of the inner rod has an external thread, and the upper end of the inner rod is inserted into the upper limit cylinder and threadedly connected to the upper limit cylinder.

[0007] Furthermore, the lower limiting block includes a lower limiting cylinder, the inner cavity of the lower limiting cylinder forms a limiting through hole, the outer wall of the lower limiting cylinder is provided with an external thread, the lower inner wall of the impact tube is provided with an internal thread, the lower limiting cylinder is inserted into the lower inner cavity of the impact tube and is threadedly connected to the impact tube, and the bottom of the lower limiting cylinder is connected to an annular impact block.

[0008] Furthermore, the buffer element is a rubber buffer pad.

[0009] Furthermore, the buffer element is a butterfly spring, and a foldable dustproof tube is provided between the pad and the sampling tube. The upper and lower ends of the dustproof tube are connected to the pad and the sampling tube, respectively, and the butterfly spring is inside the dustproof tube.

[0010] Furthermore, the dustproof cylinder is made of nylon cloth.

[0011] Furthermore, the pad is made of steel plate.

[0012] Furthermore, the sampling cylinder includes a fixed cover, a cylinder body, and a fixed ring. The top of the fixed cover is fixedly connected to the inner rod. Both the fixed cover and the fixed ring are provided with internal threads. The upper and lower ends of the cylinder body are respectively inserted into the fixed cover and the fixed ring, and are respectively threadedly connected to the fixed cover and the fixed ring. The cylinder body includes a first half-cylinder and a second half-cylinder, which are spliced ​​together.

[0013] Furthermore, several downwardly inclined slots are provided at intervals on the opposite end faces of the first and second half-cylinders, and several downwardly inclined insert plates are provided at intervals on the opposite end faces of the second and first half-cylinders. The insert plates correspond one-to-one with the slots, and the insert plates can be inserted into the corresponding slots.

[0014] Furthermore, an extension rod is threadedly connected to the top of the impact tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model effectively reduces the reaction force caused by the impact when the impact tube impacts the sampling cylinder by installing a buffer on the inner rod, thereby improving the operator's comfort when repeatedly operating the impact tube. At the same time, it can also reduce the vibration of the sampling cylinder, thereby effectively improving the integrity of the sampling.

[0016] 2. This utility model makes it easier to assemble and disassemble the impact tube and the sampling cylinder. When installing the impact tube onto the sampling cylinder, we first put the lower limiting sleeve onto the inner rod, that is, the inner rod passes through the lower limiting sleeve. Then, the upper limiting sleeve is threaded onto the top of the inner rod until the top cover contacts the top of the inner rod. Then, the inner rod is inserted into the inner cavity of the impact tube. Finally, the lower limiting sleeve is inserted into the inner cavity of the impact tube and threadedly connected to the impact tube. When separating the impact tube and the sampling cylinder, we need to first rotate the lower limiting sleeve and separate it from the impact tube. Then, the impact tube is removed from the inner rod. The operation is very simple and convenient.

[0017] 3. The sampling tube of this utility model facilitates the removal of soil samples. When it is necessary to remove the soil sample from the sampling tube, we first remove the sampling tube from the fixed cover, then lay the sampling tube flat, and rotate the fixed ring at the lower end of the sampling tube off the sampling tube. Then, we first pull down the first half tube to separate the slot of the first half tube from the insert plate of the second half tube, then remove the first half tube from the second half tube, and finally place the soil sample on the second half tube into the sample storage position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 yes Figure 2 A magnified view of a section at point I; Figure 4 yes Figure 2 Enlarged view of a section at point II; Figure 5 This is an exploded view of the sampling tube described in this utility model; Figure 6 This is a schematic diagram of the upper limit block and the lower limit block described in this utility model; Figure 7 This is a schematic diagram of the present invention when the dustproof sleeve is installed.

[0019] In the diagram: 1. Sampling tube; 2. Impact tube; 3. Inner rod; 4. Upper limit block; 5. Lower limit block; 6. Limiting perforation; 7. Buffer; 8. Pad; 9. Upper limit tube; 10. Top cover; 11. Lower limit tube; 12. Impact block; 13. Dustproof tube; 14. Fixing cover; 15. Fixing ring; 16. First half-tube; 17. Second half-tube; 18. Slot; 19. Insert plate; 20. Extension rod. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0021] A geological exploration sampling device for soil sampling during geological exploration, comprising a sampling tube 1 and an impact tube 2.

[0022] The top of the sampling cylinder 1 is fixedly connected to an inner rod 3. The sampling cylinder 1 includes a fixed cover 14, a cylinder body, and a fixing ring 15. The top of the fixed cover 14 is fixedly connected to the inner rod 3. Both the fixed cover 14 and the fixing ring 15 are provided with internal threads. The upper and lower ends of the cylinder body are respectively inserted into the fixed cover 14 and the fixing ring 15, and are respectively threaded to the fixed cover 14 and the fixing ring 15. Both the upper and lower ends of the cylinder body are provided with a tapering structure. The cylinder body includes a first half-cylinder 16 and a second half-cylinder 17, which are spliced ​​together. The first half-cylinder 16 and the second half-cylinder 17 are semi-cylinders, and the first half-cylinder 16 and the second half-cylinder 17 are spliced ​​together to form a cylinder body.

[0023] On the opposite end faces of the first half-cylinder 16 and the second half-cylinder 17, a plurality of downwardly inclined slots 18 are provided at intervals. On the opposite end faces of the second half-cylinder 17 and the first half-cylinder 16, a plurality of downwardly inclined insert plates 19 are provided at intervals. The insert plates 19 correspond one-to-one with the slots 18, and the insert plates 19 can be inserted into the corresponding slots 18.

[0024] The sampling tube 1 of this utility model facilitates the removal of soil samples. When it is necessary to remove the soil sample from the sampling tube 1, we first remove the sampling tube 1 from the fixing cover 14, then lay the sampling tube 1 flat, and rotate the fixing ring 15 at the lower end of the sampling tube 1 off the sampling tube 1. Then, we first pull down the first half tube 16 to separate the slot 18 of the first half tube 16 from the insert plate 19 of the second half tube 17. Then, we remove the first half tube 16 from the second half tube 17. Finally, we place the soil sample on the second half tube 17 into the sample storage position.

[0025] The inner rod 3 is inserted into the impact tube 2. An upper limit block 4 is detachably installed on the top of the inner rod 3. The upper limit block 4 includes an upper limit cylinder 9, with a top cover 10 installed on its top. The inner wall of the upper limit cylinder 9 has internal threads, and the upper side of the inner rod 3 has external threads. The upper end of the inner rod 3 is inserted into the upper limit cylinder 9 and threadedly connected to it. The outer diameter of the upper limit block 4 is larger than the outer diameter of the inner rod 3, meaning the outer diameter of the upper limit cylinder 9 is larger than the outer diameter of the inner rod 3.

[0026] The outer diameter of the upper limit cylinder 9 of this invention is similar to the inner diameter of the impact tube 2, so that when the impact tube 2 slides relative to the inner rod 3, the inner rod 3 will not shake in the impact tube 2.

[0027] A lower limiting block 5 is detachably installed at the bottom of the impact tube 2. A limiting hole 6 is formed in the middle of the lower limiting block 5. The diameter of the limiting hole 6 is smaller than the outer diameter of the upper limiting block 4, that is, the diameter of the limiting hole 6 is smaller than the outer diameter of the upper limiting cylinder 9. The inner rod 3 passes through the limiting hole 6 of the lower limiting block 5. The inner diameter of the limiting hole 6 is similar to the outer diameter of the inner rod 3. In this way, when the inner rod 3 slides up and down relative to the impact tube 2, the lower limiting block 5 will also prevent the inner rod 3 from shaking in the impact tube 2.

[0028] The lower limit block 5 includes a lower limit cylinder 11, the inner cavity of the lower limit cylinder 11 forms a limiting through hole 6, the outer wall of the lower limit cylinder 11 is provided with external threads, the lower inner wall of the impact tube 2 is provided with internal threads, the lower limit cylinder 11 is inserted into the lower inner cavity of the impact tube 2 and is threadedly connected to the impact tube 2, and the bottom of the lower limit cylinder 11 is connected to an annular impact block 12.

[0029] When this utility model is applied, the upper limit cylinder 9 can prevent the lower limit cylinder 11 from moving upward, thereby preventing the impact tube 2 from separating from the inner rod 3.

[0030] This invention makes it easier to assemble and disassemble the impact tube 2 and the sampling cylinder 1. When installing the impact tube 2 onto the sampling cylinder 1, we first put the lower limiting cylinder 11 onto the inner rod 3, that is, the inner rod 3 passes through the lower limiting cylinder 11. Then, the upper limiting cylinder 9 is threaded onto the top of the inner rod 3 until the top cover 10 contacts the top of the inner rod 3. Then, the inner rod 3 is inserted into the inner cavity of the impact tube 2. Finally, the lower limiting cylinder 11 is inserted into the inner cavity of the impact tube 2 and threadedly connected to the impact tube 2. When separating the impact tube 2 and the sampling cylinder 1, we need to first rotate the lower limiting cylinder 11 and separate it from the impact tube 2. Then, the impact tube 2 is removed from the inner rod 3. The operation is very simple and convenient.

[0031] The inner rod 3 is fitted with a buffer 7 and a pad 8. The buffer 7 is between the pad 8 and the top surface of the sampling cylinder 1, and the pad 8 is on the lower side of the impact tube 2.

[0032] This utility model, by fitting a buffer 7 on the inner rod 3, can effectively reduce the reaction force caused by the impact when the impact tube 2 impacts the sampling cylinder 1, thereby improving the operator's comfort when repeatedly operating the impact tube 2. At the same time, it can also reduce the vibration of the sampling cylinder 1, thereby effectively improving the integrity of the sampling.

[0033] The buffer element 7 is a rubber buffer pad.

[0034] In addition to using a rubber buffer pad, the buffer 7 can also be a butterfly spring.

[0035] When using a disc spring, a foldable dustproof tube 13 can be set between the steel plate and the sampling tube 1. The upper and lower ends of the dustproof tube 13 are connected to the pad 8 and the sampling tube 1, respectively. The disc spring is inside the dustproof tube 13, which can prevent dust from entering the disc spring. The dustproof tube 13 is made of nylon cloth, and the pad 8 is made of steel plate.

[0036] The top of the impact tube 2 is threadedly connected to an extension rod 20. The top of the impact tube 2 has an external thread, and the bottom of the extension rod 20 has an internal thread. During assembly, the bottom of the lowest extension rod 20 is threadedly connected to the top of the impact tube 2. When multiple extension rods 20 are provided, adjacent extension rods 20 are connected by threads. By providing multiple extension rods 20, the soil sampling depth of the sampling tube 1 can be increased. Both the top of the impact tube 2 and the top of the extension rod 20 have a tapering structure.

[0037] In this invention, soil sampling requires repeatedly lifting the impact tube 2 and forcefully impacting the sampling cylinder 1 downwards to insert the sampling cylinder 1 into the soil. Once the sampling cylinder 1 is fully inserted, it is lifted upwards, and the soil sample is removed. The sampling cylinder 1 is then inserted back into the newly dug sampling hole, and soil sampling is performed sequentially downwards. Each sampling depth corresponds to the depth of one sampling cylinder 1. This process is repeated until the set sampling depth is reached. When sampling at deeper soil depths, the length of the impact tube 2 is increased by adding extension rods 20. When the sampling cylinder 1 needs to be removed from the sampling hole, the impact tube 2 is simply lifted upwards. After the impact tube 2 moves upwards relative to the inner rod 3 by a certain distance, the lower limit cylinder 11 on the impact tube 2 contacts the upper limit cylinder 9 on the inner rod 3. At this point, the impact tube 2 drives the sampling cylinder 1 upwards.

Claims

1. A geological exploration sampling device, characterized in that, The sample tube (1) and the impact tube (2) are included. An inner rod (3) is fixedly connected to the top of the sample tube (1). The inner rod (3) is inserted into the impact tube (2). An upper limit block (4) is detachably installed on the top of the inner rod (3). The outer diameter of the upper limit block (4) is larger than the outer diameter of the inner rod (3). A lower limit block (5) is detachably installed on the bottom of the impact tube (2). A limiting through hole (6) is opened in the middle of the lower limit block (5). The diameter of the limiting through hole (6) is smaller than the outer diameter of the upper limit block (4). The inner rod (3) passes through the limiting through hole (6) of the lower limit block (5). A buffer (7) and a pad (8) are fitted on the inner rod (3). The buffer (7) is between the pad (8) and the top surface of the sample tube (1). The pad (8) is on the lower side of the impact tube (2).

2. The geological exploration sampling device according to claim 1, characterized in that, The upper limit block (4) includes an upper limit cylinder (9), a top cover (10) is installed on the top of the upper limit cylinder (9), the inner wall of the upper limit cylinder (9) is provided with an internal thread, the upper side of the inner rod (3) is provided with an external thread, the upper end of the inner rod (3) is inserted into the upper limit cylinder (9) and threadedly connected to the upper limit cylinder (9).

3. The geological exploration sampling device according to claim 1, characterized in that, The lower limit block (5) includes a lower limit cylinder (11), the inner cavity of the lower limit cylinder (11) forms a limiting through hole (6), the outer wall of the lower limit cylinder (11) is provided with an external thread, the lower inner wall of the impact tube (2) is provided with an internal thread, the lower limit cylinder (11) is inserted into the lower inner cavity of the impact tube (2) and is threadedly connected to the impact tube (2), and the bottom of the lower limit cylinder (11) is connected to an annular impact block (12).

4. The geological exploration sampling device according to claim 1, characterized in that, The buffer (7) is made of rubber buffer pad.

5. The geological exploration sampling device according to claim 1, characterized in that, The buffer (7) uses a butterfly spring. A foldable dustproof tube (13) is provided between the pad (8) and the sampling tube (1). The upper and lower ends of the dustproof tube (13) are connected to the pad (8) and the sampling tube (1) respectively. The butterfly spring is in the dustproof tube (13).

6. The geological exploration sampling device according to claim 5, characterized in that, The dustproof cylinder (13) is made of nylon cloth.

7. The geological exploration sampling device according to claim 4 or 5, characterized in that, The pad (8) is made of steel plate.

8. The geological exploration sampling device according to claim 1, characterized in that, The sampling tube (1) includes a fixed cover (14), a tube body and a fixed ring (15). The top of the fixed cover (14) is fixedly connected to the inner rod (3). Both the fixed cover (14) and the fixed ring (15) are provided with internal threads. The upper and lower ends of the tube body are respectively inserted into the fixed cover (14) and the fixed ring (15) and are respectively threaded to the fixed cover (14) and the fixed ring (15). The tube body includes a first half tube (16) and a second half tube (17) and is formed by splicing the first half tube (16) and the second half tube (17).

9. The geological exploration sampling device according to claim 8, characterized in that, On the opposite sides of the first half-cylinder (16) and the second half-cylinder (17), there are a number of downwardly inclined slots (18) spaced apart. On the opposite sides of the second half-cylinder (17) and the first half-cylinder (16), there are a number of downwardly inclined insert plates (19) spaced apart. The insert plates (19) correspond one-to-one with the slots (18), and the insert plates (19) can be inserted into the corresponding slots (18).

10. The geological exploration sampling device according to claim 1, characterized in that, An extension rod (20) is threadedly connected to the top of the impact tube (2).

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