Sediment sampling device for hydraulic engineering

Abstract

The utility model discloses a sediment sampling device for hydraulic engineering, which comprises a connecting rod, the top of the connecting rod is fixedly connected with a handle, the bottom of the connecting rod is provided with a sediment sampling head, and the outside of the sediment sampling head is slidably sleeved with an automatic sealing sleeve. According to the silt sampling device for the water conservancy project, underwater silt sampling is conducted through the silt sampling head, after sampling is finished, the automatic sealing sleeve can seal the silt sampling head, the sealing head is automatically rebounded to block the bottom of the silt sampling head, silt cannot fall off, and the device is simple and stable in structure, easy to operate and low in production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a sediment sampling device for water conservancy projects. Background Technique

[0002] An underwater sediment sampling device is a tool or equipment used to obtain samples of underwater or subaqueous sediments. These devices are usually designed for deep or shallow water environments and can sample the surface of underwater sediments through various mechanical or manual operations for analysis and research in aspects such as water quality, environment, geology, or ecology. These samples are usually used to evaluate the ecological health status, pollution level, sediment composition, substrate type, etc. of water areas. The design and operation methods of underwater sediment sampling devices can be adjusted and customized according to specific research needs and water area characteristics:

[0003] Existing sampling equipment has a relatively complex structure, requires professional training and experience, and there are certain safety risks during the operation process, with relatively high costs, including the price of the equipment itself, operation, and maintenance costs, etc., which may limit its application in some projects. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sediment sampling device for water conservancy projects to solve the problems of complex structure and high equipment cost of existing sampling equipment mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A sediment sampling device for water conservancy projects, including a connecting rod, a handle is fixedly connected to the top of the connecting rod, a mud sampling head is installed at the bottom of the connecting rod, and an automatic sealing sleeve is slidably sleeved outside the mud sampling head;

[0006] The mud sampling head includes a plug, the plug is a hollow tube body with an open bottom, a connecting piece is fixedly connected to the top of the plug, and the top of the connecting piece is fixed to the connecting rod;

[0007] The automatic sealing sleeve includes a sleeve, an automatic return sealing head is arranged at the bottom of the sleeve, the sleeve is slidably sleeved outside the plug, and a limiting mechanism is arranged between the two. A return spring is sleeved on the plug, and the return spring is located above the connecting piece and the sleeve.

[0008] Preferably, the automatic return sealing head includes a retaining piece, the retaining piece is movably connected to a connecting block, and a torsion spring is arranged between the two. The connecting block is fixedly welded at the bottom side position of the sleeve.

[0009] Preferably, the limiting mechanism includes a retaining ring arranged on the outer side of the plug, and a limiting convex ring is arranged on the inner wall of the sleeve, and the limiting convex ring is located above the retaining ring.

[0010] Preferably, a clamping groove is provided on the outer side wall of the plug, and a sealing ring is clamped in the clamping groove.

[0011] Preferably, the connecting member is a threaded sleeve, which is threadedly connected to the connecting rod at the top and fixedly connected to the plug at the bottom.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] A sediment sampling device for a water conservancy project of the present utility model samples the sediment at the bottom of the water through a sediment sampling head. After the sampling is completed, the automatic sealing sleeve will seal the sediment sampling head, and the automatically resilient sealing head will block the bottom of the sediment sampling head, so that the sediment will not fall off. The device has a simple and stable structure, is easy to operate, and has a low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view of the present utility model;

[0015] Figure 2 is the cross-sectional view of the present utility model;

[0016] Figure 3 is the schematic structural view of the sediment sampling head in the present utility model;

[0017] Figure 4 is the schematic structural view of the automatic sealing sleeve in the present utility model.

[0018] In the figure: 1. Connecting rod; 2. Sediment sampling head; 21. Plug; 22. Connecting member; 23. Return spring; 24. Retaining ring; 25. Sealing ring; 3. Automatic sealing sleeve; 31. Sleeve; 32. Limit convex ring; 33. Connecting block; 34. Flap; 35. Torsion spring; 4. Handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , a sediment sampling device for a water conservancy project, including a connecting rod 1, a handle 4 is fixedly connected to the top of the connecting rod 1, a sediment sampling head 2 is installed at the bottom of the connecting rod 1, and an automatic sealing sleeve 3 is slidably sleeved outside the sediment sampling head 2;

[0021] Specifically, the mud sampling head 2 includes a plug 21. The plug 21 is a hollow tube body with an open bottom. A connecting member 22 is fixedly connected to the top of the plug 21. The top of the connecting member 22 is fixed to the connecting rod 1. Preferably, the connecting member 22 is a threaded sleeve, and is threadedly connected to the connecting rod 1 at the top and fixedly connected to the plug 21 at the bottom.

[0022] The automatic sealing sleeve 3 includes a sleeve 31. An automatic rebound sealing head is provided at the bottom of the sleeve 31. The sleeve 31 is slidably sleeved outside the plug 21, and a limiting mechanism is provided between the two. The function of the limiting mechanism is to prevent the sleeve 31 and the plug 21 from separating. A return spring 23 is sleeved on the plug 21, and the return spring 23 is located above the connecting member 22 and the sleeve 31. After the plug 21 is pulled out of the soil, the return spring 23 causes the sleeve 31 to wrap around the plug 21 again, and the automatic rebound sealing head seals the bottom of the sleeve 31, so that the sediment in the plug 21 will not fall off.

[0023] Among them, the automatic rebound sealing head includes a retaining piece 34. The retaining piece 34 is movably connected to a connecting block 33, and a torsion spring 35 is provided between the two. The connecting block 33 is fixedly welded to the bottom side of the sleeve 31.

[0024] The limiting mechanism includes a retaining ring 24 provided on the outer side of the plug 21. A limiting convex ring 32 is provided on the inner wall of the sleeve 31, and the limiting convex ring 32 is located above the retaining ring 24.

[0025] A clamping groove is provided on the outer side wall of the plug 21, and a sealing ring 25 is clamped in the clamping groove, so that water flow will not flow into the plug 21 from the top of the sleeve 31.

[0026] Working principle: For a sediment sampling device for water conservancy projects of the present utility model, when in use, the device is inserted into the water. When the bottom of the device is inserted into the sediment and further pressed down forcefully, the plug 21 pushes open the retaining piece 34 and inserts into the sediment. The sediment fills the plug 21. Then the device is taken out. During the process of taking out the device, the return spring 23 causes the sleeve 31 to wrap around the plug 21 again, and the automatic rebound sealing head seals the bottom of the sleeve 31, so that the sediment in the plug 21 will not fall off, and thus the sediment is taken out from the bottom of the water.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sediment sampling device for water conservancy projects, including a connecting rod (1), the top of the connecting rod (1) is fixedly connected with a handle (4), and the characteristics are as follows: A mud sampling head (2) is installed at the bottom of the connecting rod (1), and an automatic sealing sleeve (3) is slidably sleeved outside the mud sampling head (2); The mud sampling head (2) includes a plug (21), the plug (21) is a hollow tube body with an open bottom, a connecting piece (22) is fixedly connected to the top of the plug (21), and the top of the connecting piece (22) is fixed to the connecting rod (1); The automatic sealing sleeve (3) includes a sleeve (31), an automatic spring-back sealing head is arranged at the bottom of the sleeve (31), the sleeve (31) is slidably sleeved outside the plug (21), and a limiting mechanism is arranged between the two. A return spring (23) is sleeved on the plug (21), and the return spring (23) is located above the connecting piece (22) and the sleeve (31).

2. The sediment sampling device for water conservancy projects according to claim 1, characterized in that: The automatic spring-back sealing head includes a retaining piece (34), the retaining piece (34) is movably connected to a connecting block (33), and a torsion spring (35) is arranged between the two. The connecting block (33) is fixedly welded to the bottom side of the sleeve (31).

3. The sediment sampling device for water conservancy projects according to claim 1, characterized in that: The limiting mechanism includes a retaining ring (24) arranged on the outer side of the plug (21), and a limiting convex ring (32) is arranged on the inner wall of the sleeve (31), and the limiting convex ring (32) is located above the retaining ring (24).

4. A sediment sampling device for water conservancy projects according to claim 1, characterized in that: A clamping groove is arranged on the outer side wall of the plug (21), and a sealing ring (25) is clamped in the clamping groove.

5. The sediment sampling device for water conservancy projects according to claim 1, characterized in that: The connecting piece (22) is a threaded sleeve, and is threadedly connected to the connecting rod (1) at the top and fixedly connected to the plug (21) at the bottom.

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