Sediment sampling device

Abstract

The utility model provides a sediment sampling device which comprises an extension rod, a connecting frame is fixed to the lower end of the extension rod, a drill bit is fixed to the lower end of the connecting frame, a sampling barrel is detachably fixed to the upper end face of the drill bit, and a movable barrel is arranged on the extension rod in a sleeved mode. A sealing cover used for covering the upper end face of the drill bit is fixed to the lower end of the movable cylinder, a horizontal upper fixing plate is fixed to the top of the extension rod, a horizontal lower fixing plate is fixed to the top of the movable cylinder, and a reset spring is connected between the upper fixing plate and the lower fixing plate. The connecting frame is a door-shaped frame body fixed to the upper end face of the drill bit, and the lower end of the sealing cover is fixed to the middle of the top end of the connecting frame. According to the sediment sampling device, the sampling barrel can be sealed and protected before and after sampling, a sediment sample can be effectively prevented from spilling and leaking, and the whole sediment sampling device is simple to operate and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling, in particular to a sediment sampling device. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Before the construction of water conservancy projects, sediment sampling is required.

[0003] At present, a Chinese patent with publication number CN217403874U discloses a sediment sampling device for water conservancy projects, including an outer cylinder, the inner surface of which is slidably connected to an inner plate, the top of the outer cylinder is fixedly connected to two connecting plates, the ends of the two connecting plates away from the outer cylinder are commonly fixedly connected to a mounting plate, the top of the inner plate is fixedly connected to a grip plate, the bottom end of the outer cylinder is fixedly connected to two assembly plates, two sampling boxes are arranged below the outer cylinder, the two sampling boxes are rotatably connected by a rotating component, the top surfaces of the two sampling boxes are both installed with tension springs, and the ends of the two tension springs away from the corresponding sampling boxes are connected to the bottom end of the inner plate, elastic components are arranged on the two assembly plates, and a sampling bag is commonly sleeved on the two sampling boxes.

[0004] This prior art can avoid the problem of traditional sediment sampling devices needing to transfer samples after sampling by combining a sampling bag with a sampling box for sampling. However, in actual use, the two sampling boxes of this prior art are interlocked and have poor sealing performance, and the sampling bag will deform due to external forces during the sampling process, resulting in the problem of sediment spilling during sampling. Summary of the invention

[0005] The utility model aims to solve the deficiencies in the prior art and provide a sediment sampling device, which can seal and protect the sampling bucket before and after sampling, effectively prevent the sediment sample from leaking, and has simple overall operation and is easy to use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sediment sampling device, comprising an extension rod, a connecting frame is fixed to the lower end of the extension rod, a drill bit is fixed to the lower end of the connecting frame, a sampling bucket is detachably fixed to the upper end face of the drill bit, and a movable cylinder is sleeved on the extension rod, a sealing cover for covering the upper end face of the drill bit is fixed to the lower end of the movable cylinder, and a horizontal upper fixing plate is fixed to the top position of the extension rod, a horizontal lower fixing plate is fixed to the top end of the movable cylinder, and a reset spring is connected between the upper fixing plate and the lower fixing plate.

[0007] As a further preferred solution, the connecting frame is a door-shaped frame body fixed to the upper end surface of the drill bit, and the lower end of the sealing cover is fixed to the middle part of the top end of the connecting frame.

[0008] As a further preferred solution, the sampling barrel is detachably fixed to the upper end surface of the drill bit and is located in the connecting frame.

[0009] As a further preferred solution, a fixing groove is provided in the middle of the upper end surface of the drill bit, an internal thread is constructed on the inner wall of the fixing groove, and an external thread matching the fixing groove is constructed on the outer edge surface of the bottom of the sampling barrel.

[0010] As a further preferred solution, the top of the extension rod extends from the middle of the upper fixed plate to form a gripping portion, and a horizontal lower fixed plate is fixed to the side of the movable cylinder.

[0011] As a further preferred solution, a handle is elastically inserted into one end of the lower fixed plate away from the movable cylinder, and a horizontal fixing frame is fixed to the side wall of the upper fixed plate, and a docking block is provided on the fixing frame for elastically inserting and cooperating with the handle.

[0012] As a further preferred solution, the docking block is vertically fixed to an end of the fixing frame away from the upper fixing plate, and a limiting hole for horizontal insertion of the handle is provided at the lower end of the docking block.

[0013] The beneficial effects of the utility model are:

[0014] 1) The utility model can detachably fix the sampling barrel on the drill bit through the cooperation of the extension rod, the connecting frame, the drill bit, the sampling barrel, the movable cylinder and the sealing cover, and cover it with the sealing cover. When the drill bit is inserted into the appropriate position in the mud and sand, the mud and sand sample can automatically flow into the sampling barrel by lifting the sealing cover to complete the sampling. By releasing the lifting of the sealing cover, it can automatically reset to cover the upper end face of the drill bit again, thereby sealing the sampling barrel. Compared with the prior art, the device can further avoid the problem of mud and sand spilling, and has a good use effect.

[0015] 2) Thanks to the cooperation of the lower fixed plate, the handle, the movable column, the upper fixed plate, the fixed frame and the docking block, the utility model can lift the movable cylinder through the lower fixed plate, and use the movable column to elastically insert into the limiting hole at the bottom of the docking block to form a limit, so that the sealing cover can maintain an upward posture to facilitate the continuous flow of mud and sand into the sampling bucket, and the movable column can be pushed out of the limiting hole by pressing, so that the reset spring drives the movable cylinder to move down and reset again, thereby driving the sealing cover to cover the sampling bucket. The overall operation is simple, easy to use, and conducive to popularization and use.

[0016] In summary, the utility model can seal and protect the sampling barrel before and after sampling, which can effectively prevent the leakage of sediment samples, and the overall operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0021] In the figure: 1. extension rod; 101. upper fixing plate; 102. fixing frame; 103. docking block; 104. limiting hole; 2. connecting frame; 3. drill bit; 301. fixing groove; 4. sampling barrel; 5. movable cylinder; 501. lower fixing plate; 502. handle; 503. movable column; 6. sealing cover; 7. reset spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example

[0025] like Figure 1 and Figure 2 As shown, this embodiment provides a sediment sampling device, including an extension rod 1, a connecting frame 2 is fixed to the lower end of the extension rod 1, a drill bit 3 is fixed to the lower end of the connecting frame 2, a sampling barrel 4 is detachably fixed to the upper end face of the drill bit 3, and a movable cylinder 5 is sleeved on the extension rod 1, a sealing cover 6 for covering the upper end face of the drill bit 3 is fixed to the lower end of the movable cylinder 5. In specific implementation, the connecting frame 2 is a door-shaped frame fixed to the upper end face of the drill bit 3, and the lower end of the sealing cover 6 is fixed to the middle of the top end of the connecting frame 2.

[0026] like Figure 1 As shown, a horizontal upper fixing plate 101 is fixed to the top position of the extension rod 1, a horizontal lower fixing plate 501 is fixed to the top end of the movable cylinder 5, and a reset spring 7 is connected between the upper fixing plate 101 and the lower fixing plate 501. The reset spring 7 can push the movable cylinder 5 downward so that the sealing cover 6 can automatically cover the upper end surface of the drill bit 3 to seal the position of the sampling barrel 4.

[0027] Cooperate Figure 3 As shown, the sampling barrel 4 is detachably fixed to the upper end surface of the drill bit 3 and is located in the connecting frame 2. In specific implementation, in this embodiment, a fixing groove 301 is provided in the middle of the upper end surface of the drill bit 3, and an internal thread is configured on the inner wall of the fixing groove 301, and an external thread matching the fixing groove 301 is configured on the outer edge surface of the bottom of the sampling barrel 4, so that the sampling barrel 4 can be detachably fixed to the drill bit 3 through the thread, which is convenient for taking.

[0028] like Figure 2 and Figure 4 As shown, the top of the extension rod 1 extends from the middle of the upper fixed plate 101 to form a gripping portion, and a horizontal lower fixed plate 501 is fixed to the side of the movable cylinder 5, and a handle 502 is elastically inserted at one end of the lower fixed plate 501 away from the movable cylinder 5.

[0029] A horizontal fixing frame 102 is fixed to the side wall of the upper fixing plate 101, and a vertical docking block 103 is fixed to one end of the fixing frame 102 away from the upper fixing plate 101. A limiting hole 104 is provided at the lower end of the docking block 103 for the handle 502 to be horizontally inserted, so that when the lower fixing plate 501 is lifted up, the handle 502 can be elastically inserted into the limiting hole 104 to maintain the lifted posture, which is conducive to the user's labor-saving operation.

[0030] When the sediment sampling device is in use, after the drill bit 3 is inserted into the appropriate position in the sediment, the movable cylinder 5 is lifted up through the lower fixed plate 501, and the movable column 503 is elastically inserted into the limiting hole 104 at the bottom of the docking block 103 to form a limit, so that the sealing cover 6 can maintain an upward posture, so that the sediment sample automatically flows into the sampling barrel 4, and the sampling is completed.

[0031] Then, the movable column 503 can be pushed out from the limiting hole 104 by pressing, so that the reset spring 7 drives the movable cylinder 5 to move down and reset again, thereby driving the sealing cover 6 to cover the sampling barrel 4, and then the sampling barrel 4 is sealed to prevent mud and sand from leaking.

[0032] In summary, the utility model can seal and protect the sampling barrel 4 before and after sampling, which can effectively prevent the leakage of sediment samples, and the overall operation is simple and easy to use.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sediment sampling device, comprising an extension rod, characterized in that: A connecting frame is fixed to the lower end of the extension rod, a drill bit is fixed to the lower end of the connecting frame, a sampling bucket is detachably fixed to the upper end face of the drill bit, and a movable cylinder is sleeved on the extension rod, a sealing cover for covering the upper end face of the drill bit is fixed to the lower end of the movable cylinder, and a horizontal upper fixing plate is fixed to the top position of the extension rod, a horizontal lower fixing plate is fixed to the top end of the movable cylinder, and a reset spring is connected between the upper fixing plate and the lower fixing plate.

2. A sediment sampling device according to claim 1, characterized in that: The connecting frame is a door-shaped frame body fixed to the upper end surface of the drill bit, and the lower end of the sealing cover is fixed to the middle part of the top end of the connecting frame.

3. A sediment sampling device according to claim 2, characterized in that: The sampling barrel is detachably fixed to the upper end surface of the drill bit and is located in the connecting frame.

4. A sediment sampling device according to claim 3, characterized in that: A fixing groove is provided in the middle of the upper end surface of the drill bit, an internal thread is constructed on the inner wall of the fixing groove, and an external thread matching the fixing groove is constructed on the outer edge surface of the bottom of the sampling barrel.

5. A sediment sampling device according to claim 1, characterized in that: The top of the extension rod extends from the middle of the upper fixing plate to form a gripping portion, and a horizontal lower fixing plate is fixed to the side of the movable cylinder.

6. A sediment sampling device according to claim 5, characterized in that: A handle is elastically inserted at one end of the lower fixing plate away from the movable cylinder, and a horizontal fixing frame is fixed to the side wall of the upper fixing plate. A docking block is arranged on the fixing frame, and the docking block is used to be elastically inserted and matched with the handle.

7. A sediment sampling device according to claim 6, characterized in that: The docking block is vertically fixed to one end of the fixing frame away from the upper fixing plate, and a limiting hole is provided at the lower end of the docking block, wherein the handle is horizontally inserted into the limiting hole.

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