A sampling device for river sludge treatment

Abstract

This utility model relates to the field of sludge sampling devices, and discloses a sampling device for river sludge treatment, including a tube head, a transparent sampling tube, a sampling tube top cover mechanism, a counterweight wing, and a counterweight impact mechanism. The counterweight impact mechanism includes a counterweight guide rod and a rubber pad. A lifting ring is fixedly installed at the upper end of the counterweight guide rod. A metal counterweight is movably sleeved on the outside of the counterweight guide rod. A ball-holding groove is opened near the upper end of the counterweight guide rod. A pin groove is opened at the upper end of the ball-holding groove. A wire hole is opened at the upper end of the pin groove. Two limiting steel balls are movably arranged in the ball-holding groove, and a limiting pin is movably arranged in the pin groove. In this utility model, the impact force generated after the metal counterweight falls drives the sampling device to sink further, thereby obtaining a deeper and more representative sludge sample.

Description

Technical Field

[0001] This utility model relates to the field of sampling devices, and in particular to a portable, self-weight cylindrical river silt sampling device. Background Technology

[0002] Riverbed sludge sampling is an important basic task in water environment management. It is mainly used to assess the water quality of rivers, understand pollution sources, and formulate treatment plans. It can help researchers and engineers understand the physical, chemical, and biological characteristics of sediments at the bottom of rivers, thereby providing a scientific basis for water environment management. Existing methods for river sludge sampling include sampling tube sampling, piston sampling, and grab sampling.

[0003] Existing patent (publication number: CN219830414U) discloses "This utility model discloses a gravity-type sludge sampling device, comprising the following structure: a sampling tube, including an inner tube and an outer tube, which are sleeved together; a tube head, installed at the front end of the outer tube; a sampling tube cover, one end of which is installed at the end of the outer tube and communicates with the sampling tube; a counterweight structure, detachably installed on the outside of the other end of the sampling tube cover; wherein, one end of the sampling tube cover is open and the other end is closed, and the sampling tube cover communicates with the sampling tube through the open end; the sampling tube cover has an inner cavity inside, and the side wall of the inner cavity has at least one through hole, and there is a movable part in the inner cavity, including a gravity-fall state and a state away from the through hole and the open end. This utility model designs a sludge sampling device with a detachable counterweight structure to meet the needs of deep water and shallow water sampling."

[0004] In the process of realizing this utility model, the inventors discovered the following technical problems: 1. The counterweight wing of the device is separate and connected by bolts, which is not convenient for disassembly and installation; 2. The device can only enter the silt to take samples by its own weight, and the sampling depth is difficult to guarantee.

[0005] Therefore, this application provides a sampling device for river sludge treatment to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a portable, weight-bearing cylindrical river silt sampling device. This invention is easy to carry and install, and allows for greater sampling depth.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A sampling device for treating river sludge includes a tube head, a transparent sampling tube, a sampling tube top cover mechanism, a counterweight wing, and a counterweight impact mechanism.

[0009] The counterweight impact mechanism includes a counterweight guide rod and a rubber pad. A lifting ring is fixedly installed at the upper end of the counterweight guide rod. A metal counterweight is slidably sleeved on the outer side of the counterweight guide rod. A ball-locking groove is opened at the upper end of the inside of the counterweight guide rod. A pin groove is opened at the upper end of the ball-locking groove. A wire hole is opened at the upper end of the pin groove. Two limiting steel balls are movably arranged in the ball-locking groove. A limiting pin is movably arranged in the pin groove.

[0010] The sampling tube top cover mechanism includes a sampling tube top cover body, an inner cavity is formed inside the sampling tube top cover body, an inner cavity movable component is movably arranged inside the inner cavity, and through holes are formed on both the front and rear inner walls of the sampling tube top cover body.

[0011] Furthermore, the counterweight guide rod is threaded onto the upper end of the counterweight wing, and the wire hole extends upward through the counterweight guide rod and the lifting ring.

[0012] Furthermore, the rubber pad is fixedly sleeved on the upper end of the counterweight wing, and the top cover of the sampling tube is threadedly sleeved on the lower end of the counterweight wing.

[0013] Furthermore, the top cover of the sampling tube is threaded onto the upper end of the transparent sampling tube, and the transparent sampling tube is threaded onto the upper end of the tube head.

[0014] Furthermore, the metal counterweight is made of tungsten steel, the transparent sampling tube is made of transparent acrylic, and the tube head is made of stainless steel.

[0015] Furthermore, the winglets on the counterweight wing are evenly distributed circumferentially, and the limiting steel balls can restrict the displacement of the metal counterweight block.

[0016] This utility model has the following beneficial effects:

[0017] 1. The sampling device for river sludge treatment proposed in this utility model has a pipe head and a transparent sampling tube connected by a threaded sleeve, a transparent sampling tube and a sampling tube top cover body connected by a threaded sleeve, a sampling tube top cover body and a counterweight wing connected by a threaded sleeve, and a counterweight wing and a counterweight guide rod connected by a threaded sleeve. Therefore, the entire device can be quickly disassembled and assembled from top to bottom, and the disassembled parts are easy to carry. The device has a simple structure and is quick to operate.

[0018] 2. The sampling device for river sludge treatment proposed in this utility model has a circumferentially evenly distributed counterweight wing that can maintain the vertical falling trajectory of the device and ensure sampling positioning accuracy.

[0019] 3. The sampling device for river sludge treatment proposed in this utility model has a counterweight impact mechanism. After the device is inserted into the river sludge by its own weight, it is manually triggered. The metal counterweight falls along the guide rod onto the rubber pad at the upper end of the counterweight wing, and the impact is generated by kinetic energy, so that the entire device can be inserted into the sludge more deeply, ensuring that more samples are collected. The high-density metal counterweight made of tungsten steel can provide greater impact kinetic energy. Attached Figure Description

[0020] Figure 1 This is an overall front axle drawing of the present invention;

[0021] Figure 2 This is an overall rear axonometric drawing of the present invention;

[0022] Figure 3 This is a front sectional view of the present invention;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of the counterweight impact mechanism of this utility model;

[0024] Figure 5 This is a partial cross-sectional schematic diagram of the sampling tube top cover mechanism and counterweight wing of this utility model;

[0025] Figure 6 This is a schematic diagram of the counterweight wing of this utility model.

[0026] Legend:

[0027] 1. Tube head; 2. Transparent sampling tube; 3. Sampling tube top cover mechanism; 4. Counterweight wing; 5. Counterweight impact mechanism; 301. Sampling tube top cover body; 302. Through hole; 303. Top cover inner cavity; 304. Inner cavity moving part; 501. Counterweight guide rod; 502. Rubber pad; 503. Metal counterweight; 504. Lifting ring; 505. Limiting steel ball; 506. Limiting pin; 507. Ball groove; 508. Pin groove; 509. Wire hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-4 One embodiment provided by this utility model:

[0030] A sampling device for river sludge treatment includes a pipe head 1, a transparent sampling tube 2, a sampling tube top cover mechanism 3, a counterweight wing 4, and a counterweight impact mechanism 5. The counterweight impact mechanism 5 includes a counterweight guide rod 501 and a rubber pad 502. A lifting ring 504 is fixedly installed at the upper end of the counterweight guide rod 501. A metal counterweight 503 is movably sleeved on the outside of the counterweight guide rod 501. A ball-holding groove 50 is opened at the upper end of the inside of the counterweight guide rod 501. 7. A pin groove 508 is provided at the upper end of the ball groove 507, and a wire hole 509 is provided at the upper end of the pin groove 508. The wire hole 509 passes through the counterweight guide rod 501 and the lifting ring 504. Two limiting steel balls 505 are movably arranged in the ball groove 507, and a limiting pin 506 is movably arranged in the pin groove 508. The counterweight guide rod 501 is threadedly sleeved on the upper end of the counterweight wing 4, and the rubber pad 502 is fixedly sleeved on the upper end of the counterweight wing 4.

[0031] Specifically, this device is used for silt sampling in river channels. It is suitable for operation by personnel on boats or bridges. The counterweight wing 4 and the counterweight guide rod 501 are connected by a threaded sleeve, making installation simple. The counterweight impact mechanism 5 can provide a secondary impact to the sampling device. It is manually triggered. A rope is connected to the lifting ring 504 to pull the entire device. A rope is connected to the limiting pin 506 to trigger the metal counterweight 503 to fall. The required metal counterweight 503 is installed on the counterweight guide rod 501. The sampling device is delivered to the bottom of the river channel by the rope connected to the lifting ring 504. At this time, the rope installed on the limiting pin 506 is pulled. The limiting pin 506 moves upward along the pin groove 508, disengaging from the two limiting steel balls 505. The limiting steel balls 505 retract into the ball-holding groove 507. The metal counterweight 503 begins to fall and hits the rubber pad 502 below. The sampling device is forcefully inserted into the silt, ensuring the integrity of the sample.

[0032] Reference Figures 5-6 The sampling tube top cover mechanism 3 includes a sampling tube top cover body 301, which is threadedly sleeved on the lower end of the counterweight wing 4. The sampling tube top cover body 301 has a top cover inner cavity 303, and an inner cavity movable part 304 is movably arranged in the top cover inner cavity 303. The sampling tube top cover body 301 has a through hole 302 at the front and rear. The sampling tube top cover body 301 is threadedly sleeved on the upper end of the transparent sampling tube 2, and the transparent sampling tube 2 is threadedly sleeved on the upper end of the tube head 1.

[0033] Specifically, the tube head 1, transparent sampling tube 2, sampling tube top cover body 301, and counterweight wing 4 are all connected by threaded sleeves, making installation simple. Each component is detachable, occupying a small volume and is easy to carry. When the sampling device is delivered to the bottom of the river, the tube head 1 and transparent sampling tube 2 are inserted into the silt. Pressure is generated inside the transparent sampling tube 2. At this time, the inner cavity movable part 304 in the inner cavity 303 of the top cover is pressed upward, and the through hole 302 connects the inner and outer cavities of the sampling tube, effectively reducing the insertion resistance. When the sampling is finished, the inner cavity movable part 304 falls back into its original position due to its own gravity, and the inner and outer cavities are no longer connected. The negative pressure formed in the tube when the water flows out can prevent the sample from flowing back and leaking.

[0034] Working principle: During the descent of the rope control device, the counterweight wing 4 can maintain the device's posture to a certain extent due to its guiding effect. When the device reaches the bottom of the river, it can insert into the silt due to its own weight and the kinetic energy of the descent. At this time, the inner cavity movable part 304 moves upward in the inner cavity 303 of the top cover due to internal resistance. The through hole 302 connects the internal space of the transparent sampling tube 2 with the external river. The resistance to mud entry is reduced, and the sampling tube can be more easily inserted. After sampling, the rope connecting the lifting ring 504 is pulled upward. After the water comes out, the inner cavity movable part 304 has fallen back due to its own weight. At this time, there is negative pressure inside and outside the tube, which ensures that the sample in the transparent sampling tube 2 does not leak. When the rope connecting the limiting pin 506 is not pulled, the limiting pin 506 is located at the bottom of the pin groove 508. The limiting pin 506 can separate the two limiting steel balls 505 and lock their positions. At this time, the two limiting steel balls 505 protrude from the ball-holding groove 507. The two limiting steel balls 505 can limit the metal counterweight 503. When the rope connecting the limiting pin 506 is pulled, the limiting pin 506 moves upward in the pin groove 508. The two limiting steel balls 505 start to move inward along the ball-holding groove 507 because they lose the obstruction of the limiting pin 506. The two limiting steel balls 505 will be fully inserted into the ball-holding groove 507 under force. The metal counterweight 503 starts to fall along the counterweight guide rod 501 because it loses the obstruction of the limiting steel balls 505. It falls onto the rubber pad 502 below and generates a downward impact on the sampling device. At this time, the sampling device can go deeper into the silt.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for river sludge treatment, comprising a tube head (1), a transparent sampling tube (2), a sampling tube top cover mechanism (3), a counterweight wing (4), and a counterweight impact mechanism (5), characterized in that: The counterweight impact mechanism (5) includes a counterweight guide rod (501) and a rubber pad (502). A lifting ring (504) is fixedly installed at the upper end of the counterweight guide rod (501). A metal counterweight (503) is slidably sleeved on the outside of the counterweight guide rod (501). A ball-holding groove (507) is opened at the upper end of the inside of the counterweight guide rod (501). A pin groove (508) is opened at the upper end of the ball-holding groove (507). A wire hole (509) is opened at the upper end of the pin groove (508). Two limiting steel balls (505) are movably arranged in the ball-holding groove (507). A limiting pin (506) is movably arranged in the pin groove (508). The sampling tube top cover mechanism (3) includes a sampling tube top cover body (301), a top cover inner cavity (303) is opened in the sampling tube top cover body (301), an inner cavity movable part (304) is movably arranged in the top cover inner cavity (303), and a round through hole (302) is opened on both the front and rear inner walls of the sampling tube top cover body (301).

2. The sampling device for river sludge treatment according to claim 1, characterized in that: The counterweight guide rod (501) is threaded onto the upper end of the counterweight wing (4), and the wire hole (509) extends upward through the counterweight guide rod (501) and the lifting ring (504).

3. The sampling device for river sludge treatment according to claim 1, characterized in that: The rubber pad (502) is fixedly sleeved on the upper end of the counterweight wing (4), and the top cover body (301) of the sampling tube is threadedly sleeved on the lower end of the counterweight wing (4).

4. The sampling device for river sludge treatment according to claim 1, characterized in that: The top cover body (301) of the sampling tube is threaded onto the upper end of the transparent sampling tube (2), and the transparent sampling tube (2) is threaded onto the upper end of the tube head (1).

5. A sampling device for river sludge treatment according to claim 1, characterized in that: The metal counterweight (503) is made of tungsten steel, the transparent sampling tube (2) is made of transparent acrylic, and the tube head (1) is made of 304 stainless steel.

6. A sampling device for river sludge treatment according to claim 1, characterized in that: The winglets on the counterweight wing (4) are evenly distributed circumferentially, and the limiting steel ball (505) can limit the displacement of the metal counterweight block (503).

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