Sediment sampler for river regulation

Abstract

The utility model relates to the technical field of sediment samplers, in particular to a sediment sampler for river regulation, which comprises a sampling component, the sampling component comprises a main shaft, support lugs are arranged on two sides of the main shaft, hinge rods are hinged in the support lugs, the other ends of one group of hinge rods are hinged with a first grab bucket, and the other ends of the first grab bucket are hinged with a second grab bucket. A first grab bucket is hinged to one end of one group of hinge rods, a second grab bucket is hinged to the other end of the other group of hinge rods, a supporting shaft penetrates through rotating holes of the first grab bucket and the second grab bucket, a traction shaft and a traction rope are connected to the upper portion of the supporting shaft, and the traction rope is connected to the top of the traction shaft. According to the utility model, the main rod and the extension rod are matched with each other to pull and support the sampling assembly, so that the accurate sinking of the sampling assembly is facilitated, the contact between the sampling assembly and the river bottom is improved, the sampling assembly completes the sampling action through the pulling of the pulling rope, and the whole operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sediment samplers, in particular to a sediment sampler for river channel regulation. Background Art

[0002] A sediment sampler is an instrument that takes suspended water samples, bed load and bed sand samples in rivers in order to determine the sediment content, sediment transport rate and sediment particle size distribution. The basic requirement of a sediment sampler is to disturb the natural water flow as little as possible during sampling and obtain representative samples. It is one of the commonly used detection instruments for river management.

[0003] The existing sediment sampler mainly adopts a grab bucket device. The grab bucket is sunk to the river bottom by pulling the traction rope, and the grab bucket is opened by a self-locking rod. It is released after contacting the river bottom. While the grab bucket is pulled up, the grab buckets on both sides complete the sampling of the bottom sediment. When the device is in use, its stability is greatly reduced, and the grab bucket has poor stability in opening and closing, and is prone to closing during the sinking process. At the same time, its sinking position is easily affected by the river and deviates, and the device has poor grabbing strength, etc., which seriously reduces the efficiency, stability and convenience of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a sediment sampler for river management, so as to solve the problems proposed in the above-mentioned background technology that the grab bucket has poor opening and closing stability, is prone to closing during the sinking process, its sinking position is easily affected by the river and is offset, and the grabbing strength of the device is poor.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a sediment sampler for river management, comprising:

[0006] A sampling assembly, the sampling assembly comprises a main shaft, both sides of the main shaft are provided with supporting ears, the inside of the supporting ears is hinged with a hinged rod, the other end of one group of the hinged rods is hinged with a first grab bucket, and the other end of another group of the hinged rods is hinged with a second grab bucket, the rotating holes of the first grab bucket and the second grab bucket are penetrated by a supporting shaft, the upper part of the supporting shaft is connected with a traction shaft, the traction shaft is inserted into the inside of the main shaft, the inner wall of the main shaft is fixedly connected with a limiting ring, and a spring is provided between the traction shaft and the limiting ring;

[0007] A traction rope is connected to the top of the traction shaft, and the outer sleeve of the traction rope is provided with a main rod and an extension rod, and the main rod is threadedly connected to the top of the main shaft.

[0008] Preferably, the top inner wall of the main shaft is provided with a first internal thread, and the bottom of the main shaft is provided with a guide hole adapted to the traction shaft.

[0009] Preferably, a circular guide ring is provided on the top of the traction shaft, a traction rope is fixedly connected to the top of the circular guide ring, and the annular guide ring is slidably arranged inside the main shaft.

[0010] Preferably, two groups of the support ears and the hinged rods are provided, and the two groups of the support ears and the hinged rods are symmetrically distributed on both sides of the main shaft.

[0011] Preferably, the articulated rod is bent, and the center position of the articulated rod is hinged and penetrated with the support ear, and the two ends of the articulated rod are respectively hinged to the wall of the first grab bucket or the second grab bucket, and the outer walls of the first grab bucket and the second grab bucket are both quarter-arc structures.

[0012] Preferably, a through hole is opened at the center of the limiting ring, and a traction rope passes through the through hole, and two ends of the spring are respectively abutted against the traction shaft and the limiting ring.

[0013] Preferably, the main rod and the extension rod have the same structure, a second internal thread is provided at one end of the main rod close to the extension rod, a first external thread is provided at one end of the main rod close to the main shaft, and the first external thread is connected to the first internal thread, and a second external thread is provided at one end of the extension rod close to the main rod, and the second internal thread is connected to the second external thread.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the utility model completes the traction support of the sampling assembly through the mutual cooperation of the main rod and the extension rod, thereby facilitating the precise sinking of the sampling assembly, while improving the contact between the sampling assembly and the riverbed, and then through the pulling of the traction rope, the sampling assembly completes the sampling action. The overall operation is simple and convenient, and has good sampling strength and stability.

[0015] (1) The utility model provides a sampling assembly, which is more stable than the traditional self-locking structure, and the grab bucket will not be closed, thereby improving its stability in use.

[0016] (2) The utility model controls the sinking depth of the sampling assembly by connecting the main rod and the extension rod, and can achieve flexible adaptation to different depths by installing different numbers of extension rods, thereby improving the adaptability of the device. At the same time, the sinking guide connected by the metal rod has higher accuracy and can improve the contact effect between the sampling assembly and the riverbed, thereby improving the sampling strength of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure of B;

[0021] Figure 5 It is a schematic diagram of the explosion structure of the sampling component of the utility model.

[0022] In the figure: 1. sampling assembly; 11. main shaft; 12. support ear; 13. hinged rod; 14. first grab bucket; 15. second grab bucket; 16. support shaft; 17. traction shaft; 18. spring; 19. limit ring; 2. traction rope; 3. main rod; 4. extension rod. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] See also Figure 1-5 The utility model provides an embodiment: a sediment sampler for river management, comprising:

[0025] The sampling assembly 1 comprises a main shaft 11, both sides of the main shaft 11 are provided with support ears 12, the inside of the support ears 12 is hinged with a hinged rod 13, the other end of one group of hinged rods 13 is hinged with a first grab 14, the other end of another group of hinged rods 13 is hinged with a second grab 15, the rotation holes of the first grab 14 and the second grab 15 are penetrated by a support shaft 16, the upper part of the support shaft 16 is connected with a traction shaft 17, the traction shaft 17 is inserted into the inside of the main shaft 11, the inner wall of the main shaft 11 is fixedly connected with a limit ring 19, a spring 18 is provided between the traction shaft 17 and the limit ring 19, the support shaft 16 is in a downward state through the elastic support of the spring 18, so that the first grab 14 and the second grab 15 are hinged and unfolded, and are in a normally open state, and the overall structure can ensure the stability of its opening, and it will not be closed at will;

[0026] The traction rope 2 is connected to the top of the traction shaft 17, and the outer sleeve of the traction rope 2 is provided with a main rod 3 and an extension rod 4. The main rod 3 is threadedly connected to the top of the main shaft 11. The traction shaft 17 is pulled by the traction rope 2 to move up, and then the first grab bucket 14 and the second grab bucket 15 are closed by moving the support shaft 16 up to complete the sampling of sediment. At the same time, the main rod 3 and the extension rod 4 are installed to realize the flexible control of the sinking depth of the sampling component 1.

[0027] Furthermore, a first internal thread is provided on the top inner wall of the main shaft 11, a guide hole adapted to the traction shaft 17 is provided on the bottom of the main shaft 11, a circular guide ring is provided on the top of the traction shaft 17, and a traction rope 2 is fixedly connected to the top of the circular guide ring, and the annular guide ring is slidably arranged inside the main shaft 11, and the traction connection of the traction rope 2 facilitates the pulling of the traction shaft 17, and the hexagonal cross-section of the traction shaft 17 ensures its stability in sliding up and down.

[0028] Furthermore, two groups of support ears 12 and hinged rods 13 are provided, and the two groups of support ears 12 and hinged rods 13 are symmetrically distributed on both sides of the main shaft 11, the hinged rod 13 is bent, and the center position of the hinged rod 13 is hinged and penetrates the support ears 12, and the two ends of the hinged rod 13 are respectively hinged to the wall of the first grab 14 or the second grab 15, and the outer walls of the first grab 14 and the second grab 15 are both quarter-arc structures. Through the setting of the hinged rod 13, auxiliary traction of the first grab 14 and the second grab 15 is achieved, ensuring the stability of opening and closing of the first grab 14 and the second grab 15.

[0029] Furthermore, a through hole is opened at the center of the limiting ring 19, and the traction rope 2 passes through the inside of the through hole, and the two ends of the spring 18 are respectively abutted against the traction shaft 17 and the limiting ring 19. Through the elastic support of the spring 18, the traction shaft 17 can be in a sunken state, thereby making the first grab bucket 14 and the second grab bucket 15 always open.

[0030] Furthermore, the main rod 3 and the extension rod 4 have the same structure, a second internal thread is provided at one end of the main rod 3 close to the extension rod 4, a first external thread is provided at one end of the main rod 3 close to the main shaft 11, and the first external thread is interconnected with the first internal thread, a second external thread is provided at one end of the extension rod 4 close to the main rod 3, and the second internal thread is interconnected with the second external thread, a plurality of groups of extension rods 4 are provided, and are sleeved on the outside of the traction rope 2, so that in actual use, the device can select different numbers of extension rods 4 for installation according to the different sinking depths of the sampling component 1, thereby greatly improving its stability in use.

[0031] Working principle: the traction rope 2, the first grab bucket 14 and the second grab bucket 15 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here. When the utility model is in use, the main rod 3 and the extension rod 4 are first installed, and then the extension rod 4 is extended and installed by continuously sinking the sampling assembly 1 until the first grab bucket 14 and the second grab bucket 15 are in contact with the riverbed, and then the extension rod 4 is controlled with one hand and the traction rope 2 is pulled upward with the other hand, so that the traction shaft 17 can be driven to move upward, and the support shaft 16 can be driven upward by the upward movement of the traction shaft 17, so that the first grab bucket 14 and the second grab bucket 15 can be hinged and closed, thereby completing the sampling of sediment, and then the extension rod 4 is pulled upward until the sampling assembly 1 floats to the surface.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A sediment sampler for river management, characterized in that: include: A sampling assembly (1), the sampling assembly (1) comprising a main shaft (11), both sides of the main shaft (11) are provided with support ears (12), the inside of the support ears (12) is hinged with a hinged rod (13), the other end of one group of the hinged rods (13) is hinged with a first grab (14), and the other end of another group of the hinged rods (13) is hinged with a second grab (15), the rotation holes of the first grab (14) and the second grab (15) are penetrated by a support shaft (16), the upper part of the support shaft (16) is connected with a traction shaft (17), the traction shaft (17) is inserted into the inside of the main shaft (11), the inner wall of the main shaft (11) is fixedly connected with a limit ring (19), and a spring (18) is provided between the traction shaft (17) and the limit ring (19); A traction rope (2) is connected to the top of a traction shaft (17), and a main rod (3) and an extension rod (4) are sleeved on the outside of the traction rope (2), and the main rod (3) is threadedly connected to the top of the main shaft (11).

2. A sediment sampler for river management according to claim 1, characterized in that: The top inner wall of the main shaft (11) is provided with a first internal thread, and the bottom of the main shaft (11) is provided with a guide hole adapted to fit the traction shaft (17).

3. A sediment sampler for river management according to claim 1, characterized in that: A circular guide ring is arranged on the top of the traction shaft (17), a traction rope (2) is fixedly connected to the top of the circular guide ring, and the annular guide ring is slidably arranged inside the main shaft (11).

4. A sediment sampler for river regulation according to claim 1, characterized in that: The supporting ears (12) and the hinged rods (13) are each provided with two groups, and the two groups of supporting ears (12) and the hinged rods (13) are symmetrically distributed on both sides of the main shaft (11).

5. The sediment sampler for river regulation according to claim 1, characterized in that: The hinged rod (13) is bent, and the center of the hinged rod (13) is hingedly connected to the support ear (12). The two ends of the hinged rod (13) are respectively hingedly connected to the wall of the first grab bucket (14) or the second grab bucket (15). The outer walls of the first grab bucket (14) and the second grab bucket (15) are both quarter-arc structures.

6. A sediment sampler for river regulation according to claim 5, characterized in that: A through hole is provided at the center of the limiting ring (19), and a traction rope (2) passes through the through hole. The two ends of the spring (18) are respectively in contact with the traction shaft (17) and the limiting ring (19).

7. A sediment sampler for river regulation according to claim 5, characterized in that: The main rod (3) and the extension rod (4) have the same structure. The end of the main rod (3) close to the extension rod (4) is provided with a second internal thread, the end of the main rod (3) close to the main shaft (11) is provided with a first external thread, and the first external thread and the first internal thread are interconnected. The end of the extension rod (4) close to the main rod (3) is provided with a second external thread, and the second internal thread and the second external thread are interconnected.

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