Portable river channel sediment sampling device

Abstract

The application discloses a portable river channel sediment sampling device, which comprises two grab buckets, a fixed connecting rod, two connecting rods, a steel cable and two connecting blocks. The two connecting rods are in a movable state, the two grab buckets are closed, two sliding grooves correspond to the same straight line, and the corresponding two connecting rod hinged shafts also coincide. Therefore, the closed two grab buckets and the two connecting rods can swing relative to each other. Based on this, the size of the two connecting rods is designed, and the closed two grab buckets can enter the area between the two connecting rods. When the sampling device is not used, the two grab buckets are made to enter the area between the two connecting rods, so that the size of the sampling device is greatly reduced, the top surface of the two grab buckets is changed into a bottom surface, the two grab buckets can be placed on the ground, and the upper end positions of the two connecting rods serve as grabbing positions, so that the sampling device is more convenient to place, carry and move.

Description

Technical Field

[0001] This application relates to riverbed sediment sampling devices, and more particularly to a portable riverbed sediment sampling device. Background Technology

[0002] Commonly used riverbed sediment sampling devices include bucket sampling devices. Figure 1 This is a simplified illustration of an existing bucket sampling device, including: two grab buckets 1 hinged together, a fixed connecting rod 2 positioned between the two grab buckets 1, two connecting rods 3 fixedly connected to the two grab buckets 1 respectively, and a steel cable 4 connecting the two connecting rods 3. The first end of the fixed connecting rod 2 is hinged to one grab bucket 1, and the second end is a hook. The other grab bucket 1 has a column for the hook to enter.

[0003] When using the bucket sampling device: open the two grab buckets 1, swing the fixed connecting rod 2 to the hook connecting column, so that the two grab buckets 1 remain open; the two grab buckets 1, which remain open, enter the river channel and sink until they contact the bottom sediment. The bottom sediment lifts the two grab buckets 1, and the hook and column separate; the steel cable 4 pulls them upward, and with the help of gravity, the two grab buckets 1 first close to grab the bottom sediment, and then remain closed and are lifted away from the river channel.

[0004] Existing bucket sampling devices still have the following problems: their large size and irregular shape make them inconvenient to place, carry, and move. Utility Model Content

[0005] This application provides a portable riverbed sediment sampling device that can solve the problems mentioned in the background art.

[0006] This application provides a portable riverbed sediment sampling device, comprising: two grab buckets hinged together around a first axis, a fixed connecting rod disposed between the two grab buckets, two connecting rods and a steel cable, and further comprising: two connecting blocks; The top surfaces of both grabs have grooves perpendicular to the first axis; when both grabs are closed, the two grooves correspond to the same straight line. The two connecting blocks can be slidably and fixedly connected to the two sliding grooves respectively; The lower ends of the two connecting rods are respectively hinged to the outer end faces of the two connecting blocks, and can be switched between the following two states: the connecting rod is in an active state outside the slide groove, and the connecting rod is in a fixed state inside the slide groove; With both connecting rods in an active state, the two closed grabs can enter the area between the two connecting rods.

[0007] In some embodiments, the two connecting rods are hollow, and an installation block is slidably and fixedly connected inside the hollow cavity; the steel cable is fixedly connected to the installation block at the position of the connecting rod.

[0008] In some embodiments, the mounting block has a through hole, and the connecting rod has two connection holes for aligning with the through hole; the through hole is aligned with either connection hole, and a fixed connector is detachably connected between the mounting block and the connecting rod.

[0009] In some embodiments, the device further includes: a connecting pin member; both connecting rods have grooves, the connecting pin member is connected to the two grooves, and the connecting pin member forms a groove-pin pair with the two grooves.

[0010] In some embodiments, the outer arc walls of both grabs have grooves; when the two grabs are positioned between the two connecting rods, the connecting rods can enter the corresponding grooves to restrict the relative swing between the connecting rods and the connecting blocks.

[0011] In some embodiments, the groove has a T-shaped cross-section; the lower end of the connecting rod is a T-shaped connecting section.

[0012] In some embodiments, the connecting block is T-shaped, with a notch in the horizontal block and a through hole in the vertical block communicating with the notch; a nut is provided in the notch and is restricted from rotation; a bolt passes through the through hole and is threadedly connected to the nut.

[0013] In summary, this application discloses a portable riverbed sediment sampling device, comprising: two grab buckets, a fixed connecting rod, two connecting rods, a steel cable, and two connecting blocks. Both connecting rods are in a movable state, closing the two grab buckets. The two sliding grooves correspond to the same straight line, and correspondingly, the hinge axes of the two connecting rods are also coincident. Therefore, the closed grab buckets and the two connecting rods can swing relative to each other. Based on this, the dimensions of the two connecting rods are designed so that the closed grab buckets can enter the area between the two connecting rods. When the sampling device is not in use, the two grab buckets are positioned between the two connecting rods, significantly reducing the size of the sampling device. The top surfaces of the two grab buckets become the bottom surfaces, allowing them to be placed on the ground. The upper ends of the two connecting rods serve as the gripping positions, making the sampling device easier to place, carry, and move. Attached Figure Description

[0014] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0015] Figure 1 A schematic diagram showing the two grabs of an existing bucket sampling device in operation. Figure 2 This is a schematic diagram of the present application showing the two grabs positioned between the two connecting rods; Figure 3 A schematic diagram showing two closed grabs positioned between two connecting rods; Figure 4 This is a schematic diagram of a grab bucket; Figure 5This is a schematic diagram of the grab bucket and connecting rod during normal use. Figure 6 A schematic diagram showing the arrangement of the connecting block and connecting rod; Figure 7 A schematic diagram showing the installation of connecting rods, mounting blocks, and steel cables; Figure 8 This is a schematic diagram showing the setup of the connecting pin component and the two connecting rods.

[0016] In the picture, 1. Grab bucket; 1A. Slide groove; 1B. Groove; 2. Fix the connecting rod; 3. Connecting rod; 31. Connecting section; 32. Bending section; 33. L-shaped section; 3A. Mounting block; 3B. Connecting hole; 3C. Connecting piece; 3D. Channel rail; 4. Steel cable; 5. Connecting block; 5A. Notch; 5B. Nut; 5C. Bolt; 6. Connecting pin components. Specific Implementation

[0017] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0018] Please see Figure 2 and Figure 5 A portable riverbed sediment sampling device includes: two grab buckets 1, a fixed connecting rod 2, two connecting rods 3, a steel cable 4, and two connecting blocks 5.

[0019] Referring to existing bucket sampling devices, two grab buckets 1 are hinged together. More specifically, multiple hinge connectors 3C can be set between the two grab buckets 1. For the convenience of subsequent explanation of the orientation, the axis around which the two grab buckets 1 are hinged is set as the first axis.

[0020] Referring to existing bucket sampling devices, the fixed connecting rod 2 is set between two grab buckets 1. More specifically, the first end of the fixed connecting rod 2 is hinged to one grab bucket 1, and the second end is a hook. The other grab bucket 1 has a column for the hook to enter.

[0021] Please see Figure 1 Open the two grab buckets 1, swing the fixed link 2 to the hook connecting column, so that the two grab buckets 1 remain open.

[0022] The two grab buckets 1, kept open, enter the river channel and sink until they contact the bottom sediment. The bottom sediment then lifts the two grab buckets 1, causing the hooks and columns to separate.

[0023] In the existing bucket sampling device, two connecting rods 3 are directly fixed to two grab buckets 1 respectively, and the two connecting rods 3 are staggered so that the two connecting rods 3 can be interlaced.

[0024] Please see Figure 2 and Figure 5 In this application, the connecting rod 3 is connected to the grab bucket 1 through the connecting block 5.

[0025] Please see Figure 4 and Figure 5 The top surfaces of both grabs 1 have grooves 1A perpendicular to the first axis. When both grabs 1 are closed, the two grooves 1A correspond to the same straight line.

[0026] Two connecting blocks 5 are slidably and fixedly connected to two sliding grooves 1A, that is, the connecting blocks 5 and the sliding grooves 1A can slide. A locking structure is also provided. When the locking structure is released, the connecting blocks 5 can slide. After the connecting blocks 5 slide to the desired position, the locking structure can be locked again.

[0027] The lower ends of the two connecting rods 3 are respectively hinged to the outer end faces of the two connecting blocks 5. Through the sliding of the connecting blocks 5, the lower ends of the connecting rods 3 can be outside or inside the sliding groove 1A. When the connecting rods 3 are outside the sliding groove 1A, they can swing relative to each other. When the connecting rods 3 are inside the sliding groove 1A, the swinging between the connecting rods 3 and the connecting blocks 5 is restricted.

[0028] In summary, by sliding the connecting block 5, the connecting rod 3 can switch between the following two states: the active state of the connecting rod 3 outside the slide groove 1A, and the fixed state of the connecting rod 3 inside the slide groove 1A.

[0029] Please see Figure 4 In some embodiments, the cross-section of the chute 1A is T-shaped.

[0030] Please see Figure 3 and Figure 6The lower end of the connecting rod 3 is a T-shaped connecting section 31. When the two connecting rods 3 are connected, they need to be staggered. More specifically, in addition to the connecting section 31, the connecting rod 3 also includes: an L-shaped section 33 for staggering, and a curved section 32 set between the L-shaped section 33 and the connecting section 31. The curved section 32 is used to make the two L-shaped sections 33 shift in opposite directions, thereby staggering them.

[0031] Please see Figure 5 and Figure 6 The connecting block 5 is T-shaped, with a notch 5A on the horizontal block and a through hole in the vertical block leading to the notch 5A. A nut 5B is installed inside the notch 5A, restricting its rotation; more specifically, a square nut 5B can be used. A bolt 5C passes through the through hole, threaded onto the nut 5B. Thus, bolt 5C and nut 5B serve as the locking structure. Rotating bolt 5C moves nut 5B, clamping / loosening the connecting block 5 relative to the slide groove 1A.

[0032] The cross-section of the slide 1A is T-shaped, which provides a relatively stable restriction effect on the connecting rod 3 and makes it convenient to install bolts 5C and nuts 5B as locking structures on the connecting block 5.

[0033] Please see Figure 2 and Figure 5 With both connecting rods 3 in an active state, the two grab buckets 1 are closed, and the two sliding grooves 1A correspond to the same straight line. Correspondingly, the hinge axes of the two connecting rods 3 also coincide. Therefore, the two closed grab buckets 1 and the two connecting rods 3 can swing relative to each other. Based on this, by designing the dimensions of the two connecting rods 3, the two closed grab buckets 1 can enter the area between the two connecting rods 3, significantly reducing the size of the sampling device. The top surface of the two grab buckets 1 becomes the bottom surface, allowing them to be placed on the ground, with the upper ends of the two connecting rods 3 serving as the gripping position.

[0034] The specific process can be as follows: S1, slide the two connecting rods 3 outward to switch the connecting rods 3 from a fixed state to a movable state; S2, move the two closed grabs 1 into the space between the two connecting rods 3, at which point there is still a gap between the grabs 1 and the connecting rods 3; S3, slide the two connecting rods 3 inward until the connecting rods 3 abut against the outer arc of the grabs 1, at which point the connecting rods 3 switch from a movable state to a fixed state.

[0035] Please see Figure 3 and Figure 4 In some embodiments, the outer arc walls of both grabs 1 have grooves 1B. When the two grabs 1 are positioned between the two connecting rods 3, the connecting rods 3 can enter the corresponding grooves 1B, thereby limiting the relative swing between the connecting rods 3 and the connecting block 5.

[0036] The corresponding S3 step is as follows: slide the two connecting rods 3 inward to enter the groove 1B until the connecting rods 3 abut against the inner wall of the groove 1B. At this time, the connecting rods 3 can still be outside the slide groove 1A. The relative swing between the connecting rods 3 and the connecting block 5 is limited by the cooperation between the connecting rods 3 and the groove 1B.

[0037] Because the connecting rod 3 is relatively long, when the two grabs 1 are between the two connecting rods 3, it is more stable to restrict the relative swing between the connecting rod 3 and the connecting block 5 by having the connecting rod 3 re-enter the slide groove 1A. In addition, the size of the connecting section 31 of the connecting rod 3 is also more suitable.

[0038] Please see Figure 2 Referring to existing bucket sampling devices, the two ends of the steel cable 4 are fixedly connected to the tops of the two connecting rods 3 respectively.

[0039] Please see Figure 7 In some embodiments, the two connecting rods 3 are hollow, and a mounting block 3A is slidably and fixedly connected inside the hollow cavity. The steel cable 4 is fixedly connected to the mounting block 3A at the position of the connecting rod 3.

[0040] When using the sampling device, the mounting block 3A is positioned near the top of the connecting rod 3 at its fixed connection point. When not using the sampling device, following the steps S1-S3 described above, the two closed grabs 1 are brought into the area between the two connecting rods 3, and both mounting blocks 3A slide to a position further inside the connecting rods 3. This allows portions of both ends of the steel cable 4 to enter the two connecting rods 3, shortening the length of the steel cable 4 outside the two connecting rods 3 and making it easier to place, carry, and move the sampling device.

[0041] Furthermore, the mounting block 3A has a through hole, and the connecting rod 3 has two connecting holes 3B for aligning with the through hole. The through hole is aligned with either connecting hole 3B, and a connector 3C is detachably connected between the mounting block 3A and the connecting rod 3. The connector 3C is used to securely connect the mounting block 3A to the connecting rod 3. More specifically, the connector 3C can be a fastener, a quick-release pin, etc.

[0042] Please see Figure 8 In some embodiments, the sampling device further includes a connecting pin member 6. Both connecting rods 3 have grooves 3D, and the connecting pin member 6 connects to the two grooves 3D, forming a pin-groove pair with both grooves 3D. More specifically, both grooves 3D can be through grooves, and the connecting pin member 6 may include a sliding sleeve and a fastener passing through the sliding sleeve; the outer diameter of the sliding sleeve is equal to the width of the groove 3D, and both end faces of the sliding sleeve slightly extend beyond the two grooves 3D.

[0043] After sliding the two connecting rods 3 outwards, the connecting rods 3 can switch from a fixed state to a movable state, and the two connecting rods 3 can swing independently. The connecting pin component 6 is added to connect the two connecting rods 3, making it easier to put the two closed grabs 1 between the two connecting rods 3.

Claims

1. A portable riverbed sediment sampling device, comprising: The two grab buckets (1) hinged together around a first axis, the fixed connecting rod (2) disposed between the two grab buckets (1), the two connecting rods (3) and the steel cable (4) are characterized in that they further include: two connecting blocks (5); The top surfaces of both grabs (1) have grooves (1A) perpendicular to the first axis; when the two grabs (1) are closed, the two grooves (1A) correspond to the same straight line; The two connecting blocks (5) can be slidably and fixedly connected to the two sliding grooves (1A); The lower ends of the two connecting rods (3) are respectively hinged to the outer end faces of the two connecting blocks (5), and can be switched between the following two states: the active state of the connecting rods (3) outside the slide groove (1A) and the fixed state of the connecting rods (3) inside the slide groove (1A); When both connecting rods (3) are in the active state, the two closed grabs (1) can enter the area between the two connecting rods (3).

2. The portable riverbed sediment sampling device according to claim 1, characterized in that, The two connecting rods (3) are hollow, and the hollow cavity is slidably and fixedly connected to the mounting block (3A); the steel cable (4) is fixedly connected to the mounting block (3A) at the position of the connecting rod (3).

3. A portable riverbed sediment sampling device according to claim 2, characterized in that, The mounting block (3A) has a through hole, and the connecting rod (3) has two connecting holes (3B) for aligning with the through hole; the through hole is aligned with either connecting hole (3B), and a fixed connector (3C) is detachably connected between the mounting block (3A) and the connecting rod (3).

4. A portable riverbed sediment sampling device according to claim 1, characterized in that, Also includes: Connecting pin component (6); Both connecting rods (3) have grooves (3D), and the connecting pin component (6) is connected to the two grooves (3D) and forms a groove pin pair with the two grooves (3D).

5. A portable riverbed sediment sampling device according to claim 1, characterized in that, Both grabs (1) have grooves (1B) on their arc-shaped outer walls; when the two grabs (1) are between the two connecting rods (3), the connecting rods (3) can enter the corresponding grooves (1B) to restrict the relative swing between the connecting rods (3) and the connecting block (5).

6. A portable riverbed sediment sampling device according to claim 1, characterized in that, The cross-section of the chute (1A) is T-shaped; the lower end of the connecting rod (3) is a T-shaped connecting section (31).

7. A portable riverbed sediment sampling device according to claim 6, characterized in that, The connecting block (5) is T-shaped. The horizontal block has a notch (5A) and the vertical block has a through hole that connects to the notch (5A). A nut (5B) is installed in the notch (5A) and the nut (5B) is restricted from rotating. A bolt (5C) is inserted in the through hole and the bolt (5C) is threaded to the nut (5B).

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