Completely-weathered soil body small-disturbance sampler

Abstract

The utility model relates to a fully-weathered soil body small-disturbance sampler, which belongs to the field of sampling devices and comprises a box body, and a cavity is arranged in the box body. A first rotating shaft is rotationally connected into the cavity, and the axis of the first rotating shaft is arranged in the X direction; a second rotating shaft is rotationally connected into the cavity, and the axis of the second rotating shaft is in the X direction; the first rotating shaft and the second rotating shaft are arranged in parallel in the Y direction; the Y direction is perpendicular to the X direction; the first rotating shaft and the second rotating shaft are fixedly connected with a first gear and a second gear respectively; the first gear and the second gear are jointly sleeved with a conveying belt, and the conveying belt is meshed with the first gear and the second gear at the same time. One side of the box body along the X direction is a side A, and the other side is a side B; the side A of the box body is rotationally connected with a crank; the crank is connected with the first rotating shaft; a cutting blade is rotationally connected to the side A of the box body and fixedly connected with the second rotating shaft, and the edge of the cutting blade protrudes out of the edge of the box body. The sampler can be used for sampling a soil body under the condition of smaller disturbance.

Description

Technical Field

[0001] The utility model belongs to the field of sampling devices, and in particular relates to a fully weathered soil body small disturbance sampler. Background Art

[0002] In water conservancy projects and geotechnical engineering sampling, weathered soil sampling is required. After the soil samples are taken out, they need to be immediately wrapped with quick-drying cement to prevent water loss. The soil samples are then processed into 50*100 cylindrical specimens.

[0003] The traditional sampling method is to saw the soil and obtain soil samples. The saw blade is long and when sampling a small area A of the soil, since the length of the saw blade obviously exceeds area A, a certain section of the saw teeth of the saw blade will be in area B. When the operator samples area A of the soil, the saw blade leaves saw marks on area B of the soil, resulting in many saw marks on the soil after the soil is sampled, which greatly disturbs the soil. Utility Model Content

[0004] The utility model discloses a fully weathered soil body small disturbance sampler, which is designed to solve the problem of large disturbance to the soil body.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a fully weathered soil small disturbance sampler, comprising a box body, a cavity is provided in the box body; a first rotating shaft is rotatably connected in the cavity, and the axis of the first rotating shaft is arranged along the X direction; a second rotating shaft is rotatably connected in the cavity, and the axis of the second rotating shaft is arranged along the X direction; the first rotating shaft and the second rotating shaft are arranged in parallel along the Y direction; the Y direction is perpendicular to the X direction; a first gear and a second gear are fixedly connected to the first rotating shaft and the second rotating shaft, respectively, the first gear and the second gear are in the cavity, and the axes of the first gear and the second gear are respectively aligned with the first gear and the second gear. The axes of the corresponding first rotating shaft and the second rotating shaft coincide with each other; a conveyor belt is commonly sleeved on the first gear and the second gear, and the conveyor belt is meshed with the first gear and the second gear at the same time; one side of the box body along the X direction is assumed to be side A, and the other side is assumed to be side B; the A side of the box body is rotatably connected to a crank for rotating the first rotating shaft, the crank is connected to the first rotating shaft, and the crank is outside the cavity; the A side of the box body is rotatably connected to a cutting blade, the axis of the cutting blade coincides with the axis of the second rotating shaft, the cutting blade is fixedly connected to the second rotating shaft, and the edge of the cutting blade protrudes from the edge of the box body.

[0006] Furthermore, a handle for a person to hold is provided on the B side of the box body, and the axis of the handle is along the X direction.

[0007] A grip is provided for a person to hold, and the operator can shake the grip with one hand and stabilize the entire sampler with the other hand.

[0008] Furthermore, the grip can move along the Y direction, and the grip and the box body are jointly provided with a limit assembly for limiting the grip, and the limit assembly includes: a slide groove, which is provided on the box body, and the slide groove is formed by cutting the B side surface of the box body toward the A side surface; a slider, which is movably clamped in the slide groove and can slide along the slide groove; the sliding direction is along the Y direction; the slider is fixedly connected to the grip; a plurality of slots, which are provided on the bottom wall of the slide groove, and the axis is along the X direction; a plurality of slots are arranged in parallel along the Y direction; a blind groove, which is provided on the grip, and the axis of the blind groove coincides with the axis of the grip; an insertion rod, which is movably clamped in the blind groove and can slide along the blind groove, and the sliding direction is along the X direction, and the end of the insertion rod close to the slot can extend out of the blind groove, and the end of the insertion rod close to the slot can be inserted into it a slot in the handle; a spring is in the blind slot, and the expansion and contraction direction of the spring is along the X direction; one end of the spring abuts against the bottom end surface of the blind slot, and the other end abuts against the end surface corresponding to the insertion rod; the spring is in a compressed state; a connecting slot is provided in the grip and is connected to the blind slot, and the length direction of the connecting slot is along the X direction; a connecting block is fixed on the peripheral wall of the insertion rod, and the connecting block is movably clamped in the connecting slot and can slide along the X direction as a whole with the insertion rod; the shape of the connecting block is adapted to the shape of the connecting slot; an adjusting bolt is threadedly connected to the side wall of the grip, and the axis of the adjusting bolt is along the radial direction of the grip; a threaded hole for the adjusting bolt to connect is provided on the grip, and the threaded hole is connected to both the connecting slot and the blind slot; the adjusting bolt is screwed along the radial direction of the grip to allow the end of the insertion rod to be separated from the slot.

[0009] The reason why the grip can be moved in the Y direction is that based on the consideration of the lever arm, when the grip moves to the end close to the crank, the force of shaking the crank makes it more difficult to hold the grip. However, at this time, the grip is far away from the end where the cutting blade is located, which means that one end of the cutting blade can have a smaller operating space, and sampling can be performed in a smaller area, which is not easy to disturb the soil. On the contrary, when the grip moves to the end close to the cutting blade, the force of shaking the crank makes it easier to hold the grip, and the entire device can be kept stable under the force of turning the crank. However, the disadvantage is that the human hand is close to one end of the cutting blade, resulting in a large space occupied by one end of the cutting blade, and the soil in the small space area cannot be effectively sampled. Therefore, the grip is designed to be movable in the Y direction, and the operator can flexibly apply it to the above two scenarios.

[0010] Furthermore, the connecting block is truncated cone-shaped, with the end of the connecting block having a smaller area facing the direction of the slot, and the end edge of the adjusting bolt is provided with a driving surface, which is formed by chamfering the adjusting bolt at a right angle, and the driving surface abuts against the circumferential side wall of the connecting block.

[0011] By screwing the adjusting bolt, the connecting block and the plug rod can slide as a whole in the X direction. The driving surface can make the contact between the connecting block and the adjusting bolt better, and the connection can be driven more easily by the adjusting bolt.

[0012] Furthermore, a placement thread groove for placing an adjusting bolt is provided on the side wall of the grip, and the adjusting bolt can be threadedly connected with the placement thread groove.

[0013] After the adjusting bolt is removed from the grip, the elastic force of the spring causes the rod to be inserted into the slot. To avoid losing the removed adjusting bolt, the adjusting bolt needs to be screwed back onto the threaded groove to facilitate the operator to find the adjusting bolt in time when the rod is disengaged from the slot.

[0014] Beneficial Effects

[0015] 1. This sampler can sample small areas of soil by rotating the cutting blade, avoiding the use of traditional saws for cutting, thus solving the problem of long saws causing saw mark disturbances to other areas.

[0016] 2. This sampler can flexibly cope with the above-mentioned different sampling scenarios by sliding the grip. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structural diagram of the sampler;

[0018] Figure 2 It is a schematic diagram of the structure of the sampler with the lower cover hidden;

[0019] Figure 3 is a cross-sectional view of the lower cover and the limit assembly;

[0020] Figure 4 It is a schematic diagram of the structure of the adjusting bolt.

[0021] 1. Upper cover; 2. Lower cover; 3. First rotating shaft; 4. First gear; 5. Second rotating shaft; 6. Second gear; 7. Transmission belt; 8. Crank; 9. Cutting blade; 10. Limiting assembly; 101. Slide groove; 102. Sliding block; 103. Grab handle; 104. Slot; 105. Blind groove; 106. Insert rod; 107. Spring; 108. Connecting groove; 109. Connecting block; 110. Adjusting bolt; 111. Driving surface; 11. Place thread groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0023] See Figure 1A fully weathered soil small disturbance sampler comprises an upper cover 1 and a lower cover 2. The upper cover 1 and the lower cover 2 have the same shape and are spliced ​​into a box body by bolts. In this embodiment, the box body is a rectangular box with a cavity in the box body.

[0024] See Figure 2 A first rotating shaft 3 is rotatably connected in the cavity, and the axis direction of the first rotating shaft 3 is along Figure 1 The first rotating shaft 3 is sleeved with a first gear 4 , which is fixedly connected to the first rotating shaft 3 , and is located in the cavity, and the axis of the first gear 4 coincides with the axis of the first rotating shaft 3 .

[0025] See Figure 2 The cavity is also rotatably connected with a second rotating shaft 5, and the axis of the second rotating shaft 5 is along the X direction. Figure 1 The second gear 6 is arranged in parallel in the Y direction, and the Y direction is perpendicular to the X direction. The second shaft 5 is sleeved with a second gear 6, which is fixedly connected to the second shaft 5, and the second gear 6 is in the cavity. The axis of the second gear 6 coincides with the axis of the second shaft 5.

[0026] The first gear 4 and the second gear 6 are both covered with a transmission belt 7, and the transmission belt 7 is provided with a tooth groove, and the transmission belt 7 is meshed with the first gear 4 and the second gear 6 through the tooth groove. The transmission belt 7 is in the cavity.

[0027] In this embodiment, a crank 8 is rotatably connected to a side surface wall of the box body along the X direction, the crank 8 is outside the cavity, the axis of the output end of the crank 8 coincides with the axis of the first rotating shaft 3, and the output end of the crank 8 passes through the side wall of the box body and is fixedly connected to the first rotating shaft 3. In other embodiments, a motor can be used instead of the crank 8, and the rotating shaft of the motor is fixedly connected to the first rotating shaft 3, and the rotating shaft axis of the motor coincides with the axis of the first rotating shaft 3.

[0028] The box body is also rotatably connected with a cutting blade 9, which is a circular disc and is located outside the cavity. The cutting blade 9 and the crank 8 are located on the same side of the box body. The edge of the cutting blade 9 protrudes from the edge of the box body. The axis of the cutting blade 9 coincides with the axis of the second rotating shaft 5, and the rotating shaft of the cutting blade 9 passes through the side wall of the box body and is fixed on the second rotating shaft 5.

[0029] The operator cranks the crank 8, which drives the first rotating shaft 3 to rotate, and the first rotating shaft 3 in turn rotates the first gear 4, and the first gear 4 rotates the second gear 6 through the transmission belt 7, and the second gear 6 rotates the second rotating shaft 5, and the second gear 6 rotates the cutting blade 9. The edge of the cutting blade 9 protrudes from the edge of the box body to ensure that the cutting blade 9 can cut the soil.

[0030] Assume that the side of the box body in the X direction where the crank 8 and the cutting blade 9 are located is the A side, and the side facing away from the A side is the B side.

[0031] A grip 103 is provided on the B side surface of the box body. In this embodiment, the grip 103 is cylindrical, and the axis of the grip 103 is along the X direction. The operator can shake the crank 8 with one hand and hold the grip 103 with the other hand to provide a support point for the operator to shake the crank 8, thereby improving the stability of the entire sampler when the crank 8 is shaken.

[0032] The grip 103 can slide along the Y direction. It also includes a limit assembly 10 for moving the grip 103 to a certain position and fixing it. Figure 3 , the limiting assembly 10 comprises:

[0033] The slide groove 101 is provided on the box body, and the slide groove 101 is formed by cutting the B side surface toward the A side surface of the box body.

[0034] The slider 102 is movably mounted in the slide groove 101 and can slide along the slide groove 101; the sliding direction is along the Y direction. The slider 102 is fixedly connected to the circumferential side wall of the grip 103; the grip 103 and the slider 102 can slide along the slide groove 101 as a whole.

[0035] A plurality of slots 104 are provided on the bottom wall of the slide slot 101 , with the axis along the X direction; the plurality of slots 104 are arranged in parallel along the Y direction.

[0036] A blind groove 105 is provided in the grip 103, and the axis of the blind groove 105 coincides with the axis of the grip 103;

[0037] The insertion rod 106 is movably mounted in the blind groove 105 and can slide along the blind groove 105 in the X direction. One end of the insertion rod 106 close to the slot 104 can extend out of the blind groove 105 , and one end of the insertion rod 106 close to the slot 104 can be inserted into one of the slots 104 .

[0038] The spring 107 is in the blind groove 105, and its expansion and contraction direction is along the X direction; one end of the spring 107 abuts against the bottom surface of the blind groove 105, and the other end abuts against the corresponding end surface of the insertion rod 106. The spring 107 is in a compressed state.

[0039] A connecting groove 108 is provided in the grip 103 and communicates with the blind groove 105. The length direction of the connecting groove 108 is along the X direction.

[0040] The connecting block 109 is fixed on the circumferential side wall of the insertion rod 106. In this embodiment, the connecting block 109 is truncated, and the axis of the connecting block 109 coincides with the axis of the insertion rod 106. The end of the connecting block 109 with a smaller area faces the direction of the slot 104. The connecting block 109 is movably clamped in the connecting groove 108 and can slide along the X direction as a whole with the insertion rod 106. The shape of the connecting block 109 is adapted to the shape of the connecting groove 108;

[0041] The adjusting bolt 110 is threadedly connected to the side wall of the grip 103, and the axis of the adjusting bolt 110 is along the radial direction of the grip 103; the grip 103 is provided with a threaded hole for the adjusting bolt 110 to connect, and the threaded hole is connected to the connecting groove 108 and the blind groove 105. Under the elastic force of the spring 107, the end of the adjusting bolt 110 abuts against the circumferential side wall of the connecting block 109, and the adjusting bolt 110 is screwed along the radial direction of the grip 103, so that the end of the plug rod 106 can be disengaged from the slot 104. Figure 4 The end edge of the adjusting bolt 110 is provided with a driving surface 111, and the driving surface 111 is formed by chamfering the adjusting bolt 110 at a right angle. The design of the driving surface 111 is that the driving surface 111 abuts against the side surface of the truncated cone-shaped connecting block 109, so that the adjusting bolt 110 can more easily drive the connecting block 109 to move.

[0042] A placement thread groove 11 is also provided on the side wall of the grip 103, and the placement thread groove 11 can be threadedly connected to the adjusting bolt 110. When the adjusting bolt 110 is completely unscrewed from the threaded hole, it indicates that the insert rod 106 is firmly inserted into the corresponding slot 104. At this time, the unscrewed adjusting bolt 110 is screwed into the placement thread groove 11 to prevent the adjusting bolt 110 from being lost.

[0043] The operation process of this sampler is:

[0044] The operator holds the grip 103 with one hand and rotates the crank 8 with the other hand; the cutting blade 9 rotates to cut the soil;

[0045] The adjusting bolt 110 is removed from the threaded groove 11, and then screwed into the bottom end of the threaded hole. At this time, the adjusting bolt 110 is in contact with the side of the truncated cone-shaped connecting block 109 due to the driving surface 111. Therefore, as the adjusting bolt 110 is continuously screwed into the threaded hole, the adjusting bolt 110 will force the connecting block 109 and the insert rod 106 to compress the spring 107 as a whole, so that the insert rod 106 will disengage from the slot 104.

[0046] After the limit assembly 10 is moved to the appropriate new slot 104 position, it is only necessary to first unscrew the adjustment bolt 110 from the threaded hole, and then slightly move the limit assembly 10 along the Y direction to ensure that the insertion rod 106 can be inserted into the corresponding slot 104 under the elastic force of the spring 107.

[0047] The screwed-off adjusting bolt 110 is screwed back into the placement thread groove 11 to prevent the adjusting bolt 110 from being lost.

[0048] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fully weathered soil small disturbance sampler, characterized in that: The invention comprises a box body, wherein a cavity is provided in the box body; a first rotating shaft (3) is rotatably connected in the cavity, and the axis of the first rotating shaft (3) is arranged along the X direction; a second rotating shaft (5) is rotatably connected in the cavity, and the axis of the second rotating shaft (5) is arranged along the X direction; the first rotating shaft (3) and the second rotating shaft (5) are arranged in parallel along the Y direction; and the Y direction is perpendicular to the X direction; The first rotating shaft (3) and the second rotating shaft (5) are respectively fixedly connected with a first gear (4) and a second gear (6); the first gear (4) and the second gear (6) are located in the cavity; the axes of the first gear (4) and the second gear (6) coincide with the axes of the corresponding first rotating shaft (3) and the second rotating shaft (5); A conveyor belt is sleeved on the first gear (4) and the second gear (6), and the conveyor belt meshes with the first gear (4) and the second gear (6) at the same time; one side of the box body along the X direction is defined as side A, and the other side is defined as side B; a crank (8) for rotating the first rotating shaft (3) is rotatably connected to the side A of the box body, the crank (8) is connected to the first rotating shaft (3), and the crank (8) is located outside the cavity; a cutting blade (9) is rotatably connected to the side A of the box body, the axis of the cutting blade (9) coincides with the axis of the second rotating shaft (5), the cutting blade (9) is fixedly connected to the second rotating shaft (5), and the edge of the cutting blade (9) protrudes from the edge of the box body.

2. A fully weathered soil small disturbance sampler according to claim 1, characterized in that: A handle (103) for a person to hold is provided on the B side of the box body, and the axis of the handle (103) is along the X direction.

3. A fully weathered soil small disturbance sampler according to claim 2, characterized in that: The grip (103) can move along the Y direction. The grip (103) and the box body are provided with a limiting assembly (10) for limiting the grip (103). The limiting assembly (10) includes: A slide groove (101) is provided on the box body, and the slide groove (101) is formed by cutting from the B side surface to the A side surface of the box body; The slider (102) is movably mounted in the slide groove (101) and can slide along the slide groove (101); the sliding direction is along the Y direction; the slider (102) is fixedly connected to the grip (103); A plurality of slots (104) are provided on the bottom wall of the slide groove (101), with the axis along the X direction; the plurality of slots (104) are arranged in parallel along the Y direction; A blind groove (105) is provided on the grip (103), wherein the axis of the blind groove (105) coincides with the axis of the grip (103); The insertion rod (106) is movably mounted in the blind groove (105) and can slide along the blind groove (105), and the sliding direction is along the X direction. The end of the insertion rod (106) close to the slot (104) can extend out of the blind groove (105), and the end of the insertion rod (106) close to the slot (104) can be inserted into one of the slots (104); The spring (107) is in the blind groove (105), and the expansion and contraction direction of the spring (107) is along the X direction; one end of the spring (107) abuts against the bottom surface of the blind groove (105), and the other end abuts against the corresponding end surface of the insertion rod (106); the spring (107) is in a compressed state; A connecting groove (108) is provided in the grip (103) and communicates with the blind groove (105), and the length direction of the connecting groove (108) is along the X direction; A connecting block (109) is fixed on the peripheral wall of the insertion rod (106). The connecting block (109) is movably clamped in the connecting groove (108) and can slide along the X direction as a whole with the insertion rod (106); the shape of the connecting block (109) is adapted to the shape of the connecting groove (108); The adjusting bolt (110) is threadedly connected to the side wall of the grip (103), and the axis of the adjusting bolt (110) is along the radial direction of the grip (103); a threaded hole for connecting the adjusting bolt (110) is provided on the grip (103), and the threaded hole is connected to the connecting groove (108) and the blind groove (105); the adjusting bolt (110) is screwed along the radial direction of the grip (103), so that the end of the insertion rod (106) can be separated from the slot (104).

4. A fully weathered soil small disturbance sampler according to claim 3, characterized in that: The connecting block (109) is in a truncated cone shape, and the end of the connecting block (109) with a smaller area faces the direction of the slot (104). The end edge of the adjusting bolt (110) is provided with a driving surface (111), and the driving surface (111) is formed by chamfering the adjusting bolt (110) at a right angle, and the driving surface (111) abuts against the circumferential side wall of the connecting block (109).

5. A fully weathered soil small disturbance sampler according to claim 4, characterized in that: A placement thread groove (11) for placing an adjusting bolt (110) is provided on the side wall of the grip (103), and the adjusting bolt (110) can be threadedly connected to the placement thread groove (11).

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