Device for collecting lake sediment

Abstract

The utility model provides a device for collecting lake bottom mud, which comprises a collecting cylinder and an extension bar, and an opening for the lake bottom mud to enter is arranged at the bottom of the collecting cylinder; the material pushing assembly is installed in the collecting cylinder in a sliding mode in the length direction of the collecting cylinder, and a positioning assembly is arranged at the top of the collecting cylinder; the inserting column is fixedly mounted on the top surface of the collecting cylinder, and the inserting column is matched with an inserting hole formed in the end part of the lengthening rod; a locking assembly is arranged on the inserting column; and a driving part is arranged below the locking assembly. By arranging the driving part which can be pushed by the material pushing assembly to provide power, the driving part can be pushed by moving the material pushing assembly to the top of the collecting barrel without shielding the opening before collecting, so that the locking assembly is automatically driven, and the extension rod and the collecting barrel are locked and connected; after collection, when the material pushing assembly pushes out collected materials, the upward pushing effect of the driving part can be canceled, the locking assembly conducts self-unlocking, and unlocking of locking connection of the lengthening rod and the collection cylinder is completed.

Description

Technical Field

[0001] The utility model relates to the field of lake sediment collection, and particularly relates to a device for collecting lake sediment. Background Art

[0002] Lake sediment is an important part of the lake ecosystem and is closely related to lake eutrophication and water quality safety. By collecting sediment samples, the chemical components, biodiversity and structural characteristics of the sediment can be analyzed, so as to evaluate the nutritional status, water quality status and the health of the ecosystem of the lake.

[0003] At present, before collecting lake sediment with a collecting device, a lengthening rod of different lengths needs to be connected (the specific length depends on the depth of the lake); in the prior art, the lengthening rod is generally connected to the collecting device through threads. When connecting or disassembling the two, the threads need to be repeatedly turned to achieve locking, and its installation is not convenient. Content of the Utility Model

[0004] The utility model provides a device for collecting lake sediment in order to solve the technical problem of inconvenient installation between the lengthening rod and the collecting device.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a device for collecting lake sediment, which includes a collecting cylinder and a lengthening rod. An opening for lake sediment to enter is arranged at the bottom of the collecting cylinder; it further includes: a pushing component, which is slidably installed into the collecting cylinder along the length direction of the collecting cylinder, and a positioning component is arranged at the top of the collecting cylinder to position the pushing component after it moves to the top of the collecting cylinder; a plug post, which is fixedly installed on the top surface of the collecting cylinder, and the plug post is adapted to a jack arranged at the end of the lengthening rod; a locking component is arranged on the plug post to provide locking after the plug post is inserted into the jack; a driving part extending into the top of the collecting cylinder and capable of being pushed by the pushing component to provide power is arranged below the locking component.

[0007] In this technical solution, by arranging a driving part that can be pushed by the pushing component to provide power, before collection, the pushing component is moved to the top of the collecting cylinder to not block the opening, and then the driving part can be pushed to drive the locking component by itself to lock and connect the lengthening rod and the collecting cylinder; after collection, when the pushing component is used to push out the collected material, the upward pushing effect of the driving part is cancelled, and the locking component is self-unlocked to complete the release of the locking connection between the lengthening rod and the collecting cylinder, providing convenience for disassembly and assembly.

[0008] Preferably, a chamfer is arranged at the outer edge of the bottom opening of the collecting cylinder, and vertical grooves are arranged on the wall of the collecting cylinder.

[0009] In this technical solution, through the chamfer setting, the bottom opening of the collection cylinder is sharpened, facilitating insertion into the lake sediment.

[0010] Preferably, the pushing component includes a disc, a round rod, and anti-slip patterns; the disc is located inside the collection cylinder, and the cylindrical surface of the disc is in clearance fit with the inner wall of the collection cylinder. Round rods are fixedly connected to both sides of the disc and extend through the vertical slots to the outside of the collection cylinder.

[0011] In this technical solution, the round rod extends outside the collection cylinder, facilitating manual operation. By driving the round rod to move in the vertical slot, the disc can be moved in the length direction of the collection cylinder, and the collected lake sediment can be pushed out.

[0012] Preferably, anti-slip patterns are provided on the cylindrical surface of the round rod.

[0013] In this technical solution, the anti-slip patterns provide an anti-slip effect after being held by the hand.

[0014] Preferably, the positioning component includes a bent slot, which is provided at the top of the vertical slot and bends downward to one side of the vertical slot.

[0015] In this technical solution, the bent slot is used for the round rod to be embedded, playing a positioning role to prevent the pushing component from moving downward by itself due to gravity and blocking the opening.

[0016] Preferably, the driving part includes a push rod and a wedge block; the bottom of the wedge block is fixedly connected to the top of the push rod, and the width of the wedge block gradually decreases from bottom to top.

[0017] In this technical solution, the driving part is used for driving the locking component.

[0018] Preferably, the inside of the insertion post is provided with an inner cavity, and guide holes are provided on both sides of the insertion post. The guide holes communicate with both sides of the top of the inner cavity. A through hole is provided at the bottom of the inner cavity, and the through hole communicates with the top of the collection cylinder. The push rod is in clearance fit with the through hole, and the wedge block is located inside the inner cavity.

[0019] In this technical solution, the inner cavity and the guide holes provide installation positions for the driving part and the locking component.

[0020] Preferably, the locking component includes two symmetrically arranged lock blocks. The lock blocks are respectively in clearance fit with the two guide holes. A slope is provided at the bottom of one side of the lock block located inside the inner cavity. The slopes of the two lock blocks form a V-shaped extrusion groove with an opening downward and a width gradually decreasing from bottom to top. The width of the bottom opening of the V-shaped extrusion groove is equal to the width of the top of the wedge block, and the wedge block is located below the V-shaped extrusion groove.

[0021] In this technical solution, the locking component is locked by driving the lock blocks.

[0022] Preferably, a guide groove is formed on the surface of the locking block along the length direction. A guide block is slidably connected to the guide groove, and the guide block is fixedly connected to the wall of the guide hole. A spring is arranged in the guide groove, and the guide block is elastically connected to one end face of the guide groove through the spring.

[0023] In this technical solution, the arrangement of the guide block and the guide groove plays a guiding role and prevents the locking block from disengaging from the guide hole. The spring realizes elastic installation. When being extruded, the locking block extends out of the guide hole. When the extrusion is removed, the spring force provides reset.

[0024] Preferably, locking holes for inserting the locking block are arranged on both sides of the jack.

[0025] In this technical solution, the locking holes are used for inserting the locking block.

[0026] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present utility model.

[0027] The positive and progressive effects of the present utility model are as follows:

[0028] For a device for collecting lake bottom mud proposed above, by setting a material pushing assembly, after the collection cylinder finishes collection, the materials in the collection cylinder can be conveniently pushed out; further, an insertion post, a jack formed at the end of the extension rod, a positioning assembly, a locking assembly, and a driving part that can be driven by the material pushing assembly to provide power are provided. Before the collection cylinder starts collection, the insertion post is inserted into the jack, so that the material pushing assembly moves to the top of the collection cylinder. The positioning assembly positions the material pushing assembly to ensure that during collection, the material pushing assembly does not move to the opening to cause blockage. The movement of the material pushing assembly can provide a thrust to the driving part, and the driving part drives the locking assembly to achieve automatic locking, completing the automatic connection between the extension rod and the collection cylinder; after collection, only need to make the material pushing assembly move downward to push out the collected materials, and at the same time cancel the upward pushing effect of the driving part to achieve automatic unlocking, and the insertion post is pulled out of the jack, then the disassembly of the extension rod and the collection cylinder can be realized; through the above design, the disassembly and assembly of the extension rod and the collection cylinder are convenient, and there is no need for additional locking or unlocking operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the whole of the present utility model.

[0030] Figure 2 It is a schematic structural diagram of the present utility model in a state where the insertion post and the extension rod are not connected.

[0031] Figure 3 For the present utility model Figure 2 It is an enlarged schematic structural diagram of part A in the present utility model.

[0032] Figure 4This is a schematic structural diagram of the position of the lock block when the round rod of the present utility model moves to the top of the vertical groove.

[0033] Figure 5 This is a schematic structural diagram of the position of the lock block when the round rod of the present utility model moves to the bending groove.

[0034] Explanation of reference numerals

[0035] 1. Collection cylinder; 101. Vertical groove; 1011. Bending groove;

[0036] 2. Insertion post; 201. Inner cavity; 202. Guide hole;

[0037] 3. Extension rod; 301. Insertion hole; 302. Lock hole;

[0038] 4. Locking assembly; 401. Lock block; 402. V-shaped extrusion groove; 403. Guide block; 404. Guide groove; 405. Spring;

[0039] 5. Pushing component; 501. Disc; 502. Round rod; 503. Anti-slip pattern;

[0040] 6. Push rod;

[0041] 7. Wedge block. Detailed implementation manners

[0042] The present utility model will be further described below by way of examples, but the present utility model is not limited to the scope of the described examples.

[0043] As Figures 1-5 shown, a device for collecting lake sediment includes a collection cylinder 1 and an extension rod 3. An opening for lake sediment to enter is provided at the bottom of the collection cylinder 1. It further includes: a pushing component 5, which is slidably installed in the collection cylinder 1 along the length direction of the collection cylinder 1, and a positioning component is provided at the top of the collection cylinder 1 to position the pushing component 5 after it moves to the top of the collection cylinder 1; an insertion post 2, which is fixedly installed on the top surface of the collection cylinder 1, and the insertion post 2 is adapted to the insertion hole 301 opened at the end of the extension rod 3; a locking component 4 is provided on the insertion post 2 to provide locking after the insertion post 2 is inserted into the insertion hole 301; a driving part extending into the top of the collection cylinder 1 and capable of being pushed by the pushing component 5 to provide power is provided below the locking component 4.

[0044] As Figure 1 shown, a chamfer is provided at the outer edge of the bottom opening of the collection cylinder 1, and a vertical groove 101 is opened on the wall of the collection cylinder 1. The chamfer makes the bottom opening of the collection cylinder 1 sharp, facilitating the insertion into the lake sediment, and the lake sediment is embedded into the collection cylinder 1 to achieve collection.

[0045] AsFigure 1 As shown in the figure, the pushing component 5 includes a disc 501, a round rod 502 and anti-slip patterns 503; the disc 501 is located inside the collection cylinder 1, and the cylindrical surface of the disc 501 is in clearance fit with the inner wall of the collection cylinder 1. Both sides of the disc 501 are fixedly connected with round rods 502 that penetrate through the vertical groove 101 and extend outside the collection cylinder 1; anti-slip patterns 503 are arranged on the cylindrical surface of the round rod 502.

[0046] After collecting the lake bottom mud in the collection cylinder 1, during the process of taking out the lake bottom mud, it is pushed out by the pushing component 5. Specifically, by holding the part of the anti-slip pattern 503 on the round rod 502 with the hand, and then pushing the round rod 502 to move along the vertical groove 101, the round rod 502 drives the disc 501 to move, making the disc 501 approach the opening of the collection cylinder 1, and pushing out the lake bottom mud in the collection cylinder 1.

[0047] As Figure 1 shown in the figure, the positioning component includes a bending groove 1011, the bending groove 1011 is arranged at the top of the vertical groove 101, and the bending groove 1011 bends downward to one side of the vertical groove 101.

[0048] Before collecting the lake bottom mud, the round rod 502 in the pushing component 5 slides along the vertical groove 101, making the disc 501 approach the top of the collection cylinder 1 until the round rod 502 moves to the top of the vertical groove 101, that is, the connection with the bending groove 1011. Then, the round rod 502 walks along the bending groove 1011 until it enters the end of the bending groove 1011 far from the vertical groove 101 to achieve positioning, which can keep the position of the pushing component 5 and prevent the pushing component 5 from falling due to gravity during collection.

[0049] Both the disc 501 and the collection cylinder 1 are designed in a circular shape, and they are in clearance fit, so that while the disc 501 can move along the length direction inside the collection cylinder 1, the disc 501 can rotate inside the collection cylinder 1. Therefore, when the round rod 502 moves along the bending groove 1011, there will be no blockage.

[0050] As Figures 2-5As shown, the driving part includes a push rod 6 and a wedge block 7; the bottom of the wedge block 7 is fixedly connected to the top end of the push rod 6, and the width of the wedge block 7 gradually decreases from bottom to top; an inner cavity 201 is formed inside the plug post 2, and guide holes 202 are formed on both sides of the plug post 2. The guide holes 202 communicate with both sides of the top of the inner cavity 201. A through hole is provided at the bottom of the inner cavity 201, and the through hole communicates with the top of the collection cylinder 1. The push rod 6 is in clearance fit with the through hole, and the wedge block 7 is located in the inner cavity 201; the locking assembly 4 includes two symmetrically arranged lock blocks 401. The lock blocks 401 are in clearance fit with the two guide holes 202 respectively. A slope is provided at the bottom of one side of the lock block 401 located inside the inner cavity 201. The slopes of the two lock blocks 401 form a V-shaped extrusion groove 402 with a downward opening and a width gradually decreasing from bottom to top. The width of the bottom opening of the V-shaped extrusion groove 402 is equal to the width of the top of the wedge block 7, and the wedge block 7 is located below the V-shaped extrusion groove 402; a guide groove 404 is formed on the surface of the lock block 401 along the length direction. A guide block 403 is slidably connected to the guide groove 404, and the guide block 403 is fixedly connected to the wall of the guide hole 202. A spring 405 is arranged in the guide groove 404, and the guide block 403 is elastically connected to one end face of the guide groove 404 through the spring 405; lock holes 302 for inserting the lock blocks 401 are provided on both sides of the insertion hole 301.

[0051] Before positioning the pushing component 5 to the top of the collection cylinder 1 through the positioning component, insert the plug post 2 on the collection cylinder 1 into the insertion hole 301 of the extension rod 3, and then push the pushing component 5 upward; when the plug post 2 is inserted into the insertion hole 301 and the pushing component 5 is not pushed upward, the locking assembly 4 is as Figures 2-3 shown, the lock blocks 401 are embedded in the guide holes 202, the two lock blocks 401 are attached to form a V-shaped extrusion groove 402, and at the same time, the lock blocks 401 are aligned with the lock holes 302.

[0052] When moving the pushing component 5 upward, the disc 501 approaches the push rod 6 until the round rod 502 moves to the top end of the vertical groove 101. During this process, the disc 501 pushes the push rod 6 upward, and the wedge block 7 moves upward together with the push rod 6, so that the wedge block 7 is inserted into the V-shaped extrusion groove 402, squeezing the two lock blocks 401, causing the two lock blocks 401 to move away from each other. The lock blocks 401 extend out of the guide holes 202 and are inserted into the lock blocks 401. At the same time, when the lock blocks 401 perform the above movement, the spring 405 is compressed, generating a compression deformation. After completing the above operations, the positions of the round rod 502 and the lock blocks 401 are as Figure 4 shown.

[0053] Then, move the round rod 502 along the bending groove 1011 and position it at the end of the bending groove 1011 away from the vertical groove 101. Since the bending groove 1011 bends downward, as Figure 1As shown, when the round rod 502 moves to the end of the bending groove 1011 away from the vertical groove 101, the round rod 502 will move downward by a certain amount. Specifically, the downward movement distance is equal to the radius of the round rod 502. In the above situation, when the round rod 502 moves downward, the disc 501 will move downward together, reducing the upward pushing distance of the push rod 6. The push rod 6 and the wedge block 7 also move downward due to gravity, so that the bottom end of the push rod 6 always fits against the top surface of the disc 501. After the wedge block 7 moves downward as described above, the extrusion on the two locking blocks 401 is reduced. Through the elastic force of the spring 405, the locking blocks 401 move into the inner cavity 201. After moving, the positions of the locking blocks 401 and the round rod 502 are as Figure 5 shown. In this state, the locking blocks 401 are still inserted into the locking holes 302 for locking.

[0054] After the above operations, the positioning of the material pushing assembly 5 at the top of the collection cylinder 1 is completed, and at the same time, the locking of the extension rod 3 and the collection cylinder 1 is achieved.

[0055] After collection, to discharge the material in the collection cylinder 1, only need to move the round rod 502 along the bending groove 1011 and into the vertical groove 101. Then move the round rod 502 to the bottom end of the vertical groove 101, and the disc 501 moves downward to push out the material. At the same time, after the disc 501 moves downward, the push rod 6 and the wedge block 7 completely lose the upward push. Due to gravity, the two return to the state as Figure 2 shown. Further, through the elastic force of the spring 405, the two locking blocks 401 also return to the state as Figure 2 shown and are pulled out of the locking holes 302 to achieve automatic unlocking after collection.

[0056] The present invention is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present invention. The protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A device for collecting lake sediment, comprising a collecting tube (1) and an extension rod (3), wherein the bottom of the collecting tube (1) is provided with an opening for the lake sediment to enter; characterized in that: Also includes: A material pushing assembly (5), wherein the material pushing assembly (5) is slidably installed in the collecting tube (1) along the length direction of the collecting tube (1), and a positioning assembly is provided at the top of the collecting tube (1) to position the material pushing assembly (5) after it moves to the top of the collecting tube (1); The plug post (2) is fixedly mounted on the top surface of the collection tube (1), and the plug post (2) is adapted to the insertion hole (301) provided at the end of the extension rod (3); a locking assembly (4) is provided on the plug post (2) to provide locking after the plug post (2) is inserted into the insertion hole (301); a driving part is provided below the locking assembly (4), which extends into the top of the collection tube (1) and can be pushed by the pushing assembly (5) to provide power.

2. A device for collecting lake sediment according to claim 1, characterized in that: The outer edge of the bottom opening of the collecting tube (1) is provided with a chamfer, and a vertical groove (101) is provided on the wall of the collecting tube (1).

3. A device for collecting lake sediment as claimed in claim 2, characterized in that: The pushing assembly (5) comprises a disc (501), a round rod (502) and anti-slip grooves (503); the disc (501) is located in the collecting tube (1), and the cylindrical surface of the disc (501) is gap-matched with the inner wall of the collecting tube (1); both sides of the disc (501) are fixedly connected with round rods (502) that penetrate the vertical groove (101) and extend to the outside of the collecting tube (1).

4. A device for collecting lake sediment as claimed in claim 3, characterized in that: The cylindrical surface of the round rod (502) is provided with anti-slip grooves (503).

5. A device for collecting lake sediment as claimed in claim 3, characterized in that: The positioning assembly comprises a bending groove (1011), wherein the bending groove (1011) is arranged at the top end of the vertical groove (101), and the bending groove (1011) is bent downward toward one side of the vertical groove (101).

6. A device for collecting lake sediment according to claim 1, characterized in that: The driving part comprises a push rod (6) and a wedge block (7); the bottom of the wedge block (7) is fixedly connected to the top of the push rod (6), and the width of the wedge block (7) gradually decreases from bottom to top.

7. A device for collecting lake sediment as claimed in claim 6, characterized in that: An inner cavity (201) is provided inside the plug column (2), and guide holes (202) are provided on both sides of the plug column (2), the guide holes (202) are connected with both sides of the top of the inner cavity (201), a through hole is provided at the bottom of the inner cavity (201), and the through hole is connected with the top of the collection tube (1), the push rod (6) is loosely matched with the through hole, and the wedge block (7) is located in the inner cavity (201).

8. A device for collecting lake sediment according to claim 7, characterized in that: The locking assembly (4) comprises two symmetrically arranged locking blocks (401), wherein the locking blocks (401) are respectively fitted with clearances in the two guide holes (202), and a slope is arranged on the bottom of one side of the locking block (401) located in the inner cavity (201), and the slopes of the two locking blocks (401) surround a V-shaped extrusion groove (402) with an opening facing downward and a width that gradually decreases from bottom to top, and the width of the bottom opening of the V-shaped extrusion groove (402) is equal to the width of the top of the wedge block (7), and the wedge block (7) is located below the V-shaped extrusion groove (402).

9. A device for collecting lake sediment according to claim 8, characterized in that: A guide groove (404) is provided on the surface of the locking block (401) along the length direction, and a guide block (403) is slidably connected to the guide groove (404), and the guide block (403) is fixedly connected to the wall of the guide hole (202). A spring (405) is provided in the guide groove (404), and the guide block (403) is elastically connected to one end surface of the guide groove (404) through the spring (405).

10. The device for collecting lake sediment according to claim 8, characterized in that: Locking holes (302) for inserting a locking block (401) are provided on both sides of the insertion hole (301).

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