Underwater sampling equipment

Abstract

The utility model discloses underwater sampling equipment, which relates to the technical field of underwater sediment sampling, and comprises a travel switch for controlling the working state of a power mechanism and a suspended weight-bearing block, the weight-bearing block is connected with the travel switch, and the weight-bearing block pulls the travel switch to keep a closed state by means of self weight. The first end of the cable is used for penetrating through the weight bearing block and being connected with the collision block, the second end of the cable is wound on the winch, the part between the second end of the cable and the weight bearing block winds around the upper portion of the first pulley, the cable makes contact with the first pulley, the winch is connected with the output end of the power mechanism, and the collision block makes contact with and collides with the weight bearing block when rising to the designated position. The weight bearing block cannot provide force for keeping the travel switch closed, the travel switch is switched off, the power mechanism stops working, and the sampler stops moving accordingly, so that the sampler is prevented from colliding with other devices of the underwater sampling equipment due to misoperation, the underwater sampling equipment is prevented from being damaged, and accidents causing personnel injury are completely eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater sediment sampling, and particularly relates to a gravity-type columnar sampler. Background Art

[0002] At present, samplers for obtaining underwater research samples such as underwater sediments include grab samplers, box samplers, piston samplers, gravity vibration samplers, etc. When the above samplers take samples, they are likely to disturb the sediments and damage the original state of the samples. Moreover, the above samplers are complex to operate, the equipment is huge, and the manufacturing and installation costs are high. The gravity-type columnar sampler is widely used because of its advantages such as convenient operation, simple equipment, and low cost. However, most of the existing gravity-type columnar sampling devices are motor-operated. During the recovery process after sampling, if the operation is improper, accidents such as the gravity-type columnar sampling device hitting the equipment are likely to occur, causing damage to the device and even injury to personnel. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an underwater sampling device to solve the problems existing in the above-mentioned prior art, so that when the collision block rises to a specified position and contacts the load-bearing block, the load-bearing block is lifted, and the load-bearing block cannot provide the force to keep the travel switch closed, the travel switch disconnects, the power mechanism stops working, and the sampler stops moving accordingly, avoiding the sampler hitting other devices of the underwater sampling equipment due to improper operation, preventing damage to the underwater sampling equipment, and eliminating accidents causing personal injuries.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides an underwater sampling device, which is characterized in that: it includes a travel switch for controlling the working state of the power mechanism and a load-bearing block suspended, the load-bearing block is connected to the travel switch, and the load-bearing block relies on its own weight to pull the travel switch to keep it in a closed state;

[0006] The first end of the cable is used to pass through the load-bearing block and connect to the collision block, the second end of the cable is wound around the winch, the part of the cable between the second end and the load-bearing block bypasses above the first pulley, and the cable contacts the first pulley, and the winch is connected to the output end of the power mechanism.

[0007] Preferably, it further includes a loading platform, the loading platform includes an installation part at the upper end and a connection part at the lower end, the first end of the support arm is installed at the front end of the installation part, the first pulley is installed at the second end of the support arm, a bearing plate carrying the winch and the power mechanism is installed above the installation part, and the travel switch is installed on the loading platform.

[0008] Preferably, the first end of the balance rod is inserted into the rear end of the mounting portion, a second pulley is provided at the second end of the balance rod, a handle for controlling the rotation of the second pulley is provided on one side of the second pulley, and a locking device for controlling the rotation state of the second pulley is provided on the other side of the second pulley.

[0009] Preferably, a support rod is further included, a loading platform rotating shaft is provided at the top end of the support rod, the loading platform rotating shaft extends into the connecting portion, and the loading platform can rotate around the loading platform rotating shaft.

[0010] Preferably, a bearing is provided on the loading platform rotating shaft, the outer ring of the bearing contacts the inner wall of the connecting portion, an operation groove is formed on the connecting portion, and a rotation locking rod for controlling the rotation state of the loading platform extends out from the operation groove.

[0011] Preferably, a base is further included, the support rod is fixed on the base, the base includes two horizontal pipes and a vertical pipe, the two horizontal pipes respectively pass through both ends of the vertical pipe, and the horizontal pipes are perpendicular to the vertical pipe, a first mounting seat is provided on the upper surface of the base, a second mounting seat is provided at the bottom of the support rod, and the first mounting seat and the second mounting seat are fixedly connected.

[0012] Preferably, a sampler is further included, a sampling head is provided at the bottom of the sampler, and the top of the sampler is fixedly connected to the collision block.

[0013] Preferably, guiding wings are provided at the top of the sampler, and the collision block is fixed at the top end of the guiding wings.

[0014] Preferably, a weight increasing block is installed in the middle section of the sampler, and a weight increasing block limiting ring for preventing the weight increasing block from falling off is provided below the weight increasing block.

[0015] Preferably, a clutch is installed on the winch, the clutch is used to connect the power mechanism, and a clutch operating lever for controlling the opening and closing of the clutch is installed on the winch.

[0016] The present utility model has achieved the following technical effects compared with the prior art:

[0017] The present utility model provides an underwater sampling device, when the collision block rises to a specified position and contacts the weight block, the weight block is jacked up, the weight block cannot provide the force to keep the travel switch closed, the travel switch disconnects, the power mechanism stops working, and the sampler stops moving accordingly, avoiding the sampler colliding with other devices of the underwater sampling device due to improper operation, preventing damage to the underwater sampling device, and eliminating accidents causing personal injuries.

[0018] The present utility model has also achieved the following technical effects compared with the prior art:

[0019] 1. In the present utility model, a second pulley and a handle are provided at the second end of the balance rod. The force of the underwater sampling device can be balanced by hanging a counterweight on the second pulley, or the handle can be held by hand to apply a balancing force manually on the balance rod.

[0020] 2. In the present utility model, the loading platform can rotate on the support rod, which is convenient for adjusting the position of the sampler and facilitating the use of the underwater sampling device.

[0021] 3. In the present utility model, a guiding wing is provided at the top of the sampler, which can prevent the sampler from shifting when it quickly falls in water, ensuring that the sampling head can sample the target area in the correct posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Structural schematic of the underwater sampling device in the present utility model Figure 1 ;

[0024] Figure 2 Structural schematic of the underwater sampling device in the present utility model Figure 2 ;

[0025] Figure 3 Structural schematic of the balance rod in the present utility model;

[0026] Figure 4 Structural schematic of the sampling head in the present utility model.

[0027] Among them, 1. Power mechanism; 2. Travel switch; 3. Counterweight; 4. Cable; 5. Collision block; 6. Winch; 7. First pulley; 8. Loading platform; 9. Support arm; 10. Balance rod; 11. Second pulley; 12. Handle; 13. Locking device; 14. Support rod; 15. Loading platform rotating shaft; 16. Operation slot; 17. Rotating locking rod; 18. Base; 19. Horizontal pipe; 20. Vertical pipe; 21. Sampler; 22. Sampling head; 23. Guiding wing; 24. Weight increasing block; 25. Weight increasing block limiting ring; 26. Clutch operating lever; 27. Power mechanism controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] 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.

[0029] The purpose of the utility model is to provide an underwater sampling device to solve the problems existing in the above-mentioned prior art, so that when the collision block rises to the specified position, it contacts and collides with the weight block, so that the weight block is lifted up, and the weight block cannot provide the force to keep the travel switch closed. The travel switch is disconnected, the power mechanism stops working, and the sampler stops moving accordingly, avoiding the sampler from colliding with other devices of the underwater sampling equipment due to improper operation, preventing damage to the underwater sampling equipment, and preventing accidents causing injuries to people.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] like Figure 1 and 2 As shown, the utility model provides an underwater sampling device, including a travel switch 2 for controlling the working state of a power mechanism 1 and a suspended weight block 3, wherein the weight block 3 is connected to the travel switch 2, and the weight block 3 relies on its own weight to pull the travel switch 2 to maintain a closed state, and the first end of the cable 4 is used to pass through the weight block 3 and connect to a collision block 5, the second end of the cable 4 is wound on a winch 6, the portion between the second end of the cable 4 and the weight block 3 is passed over a first pulley 7, and the cable 4 is in contact with the first pulley 7, and the winch 6 is connected to the output end of the power mechanism 1.

[0032] The travel switch 2 used in the present utility model is a normally open switch. When the external force is not sufficient to trigger the switch action, the travel switch 2 is in a non-conductive state. In the natural state, the load block 3 relies on its own gravity to fall and straighten the pull rope connecting the travel switch 2, and the travel switch 2 is forced to switch to the closed state. When the cable 4 moves upward until the collision block 5 contacts the load block 3, the load block 3 is continuously lifted, resulting in a continuous decrease in the tension on the pull rope and continuous relaxation of itself. The external force on the travel switch 2 continuously decreases until it is not sufficient to support its closed state, and the travel switch 2 then disconnects. The power mechanism 1 stops working, the cable 4 immediately stops moving, and the device suspended on the cable 4 also immediately stops moving upward, avoiding collision with other devices of the underwater sampling equipment. The pull rope needs to be made of a soft but low-elastic material. The travel switch 2 and the load block 3 support can also be connected by devices such as chains.

[0033] The power mechanism 1 in the present utility model can be a motor or a fuel engine. When the power mechanism 1 is a motor, the travel switch 2 is used to control the on / off of the power supplied to the motor. When the travel switch 2 is closed, the motor is powered on; when the travel switch 2 is open, the motor is powered off. When the power mechanism 1 is a fuel engine, the travel switch 2 is used to control the on / off of the fuel supply line. When the travel switch 2 is closed, the fuel engine can continuously obtain fuel supply; when the travel switch 2 is open, the fuel supply to the fuel engine is cut off, thereby causing the fuel engine to stop working. The power mechanism 1 is operated by a power mechanism controller 27. The power mechanism controller 27 has two buttons for forward and reverse rotation. Pressing the corresponding button will cause the power mechanism 1 to perform the corresponding operation. When no button is pressed, the power mechanism 1 is in a standby state. The power mechanism controller 27 can also be a wireless remote control.

[0034] Such as Figures 1-3As shown in the figure, the utility model further includes a loading platform 8. The loading platform 8 includes an installation part at the upper end and a connection part at the lower end. The first end of the support arm 9 is installed at the front end of the installation part, and the first pulley 7 is installed at the second end of the support arm 9. The winch 6 and the power mechanism 1 are installed above the installation part. The travel switch 2 is installed thereon. In a preferred embodiment, the first end of the balance rod 10 is inserted into the rear end of the installation part. A second pulley 11 is provided at the second end of the balance rod 10. A handle 12 for controlling the rotation of the second pulley 11 is provided on one side of the second pulley 11, and a locking device 13 for controlling the rotation state of the second pulley 11 is provided on the other side of the second pulley 11. The balance rod 10 is used to balance the overall force of the underwater sampling device. The second pulley 11 can hang a counterweight. The handle 12 can drive the second pulley 11 to rotate, adjusting the height of the counterweight to achieve different balance effects. The locking device 13 can limit the rotation of the second pulley 11 to prevent the hanging counterweight from slipping. The handle 12 can also be used for manual pulling to ensure the force balance of the underwater sampling device by manpower. The second pulley 11 can also be an electric pulley with a self-locking function, and the handle 12 serves as an auxiliary operation device in the case of power failure.

[0035] As Figure 1 shown in the figure, the utility model further includes a support rod 14. A loading platform rotating shaft 15 is provided at the top of the support rod 14. The loading platform rotating shaft 15 extends into the connection part, and the loading platform 8 can rotate around the loading platform rotating shaft 15. In a preferred embodiment, bearings are provided on the loading platform rotating shaft 15. The outer ring of the bearing contacts the inner wall of the connection part. An operation groove 16 is formed on the connection part. A rotation locking rod 17 for controlling the rotation state of the loading platform 8 extends out of the operation groove 16. The rotation locking rod 17 has two positions: locking and unlocking. When the rotation locking rod 17 is in the locking position, the loading platform 8 cannot rotate. When the rotation locking rod 17 is in the unlocking position, the loading platform 8 can rotate.

[0036] As Figure 1As shown in the figure, the utility model further includes a base 18, the support rod 14 is fixed on the base 18, the base 18 includes two cross tubes 19 and a vertical tube 20, the two cross tubes 19 respectively pass through both ends of the vertical tube 20, and the cross tube 19 is perpendicular to the vertical tube 20. A first mounting seat is arranged on the upper surface of the base 18, and a second mounting seat is arranged at the bottom of the support rod 14. The first mounting seat and the second mounting seat are fixedly connected. In a preferred embodiment, the base 18 is welded to the ship, and the base 18 can be fixed by clips or other stable fixing devices. The base 18 and the support rod 14 are connected by a support roller. One end of the support roller is mounted on the base 18, and the other end of the support roller is mounted at a position of the support rod 14 lower than the platform rotation shaft 15. The support roller, the support rod 14 and the base 18 form a triangular stable structure. The number of support rollers can be 3. Two of the support rollers are mounted on the cross tube 19 and are respectively located on both sides of the support rod 14, and the third support roller is mounted on the vertical tube 20. The support roller can also be replaced by a rib plate.

[0037] As Figure 1 and 2 shown in the figure, the utility model further includes a sampler 21. A sampling head 22 is arranged at the bottom of the sampler 21, and the top of the sampler 21 is fixedly connected to the collision block 5. The inside of the sampler is hollow. During operation, the sampler 21 is inserted into the sampling area by its own gravity, and after collecting the samples in the area, the sampler 21 is retracted to complete the sampling. As Figure 4 shown in the figure, in a preferred embodiment, the sampling head 22 is of a jaw type, and the tips of the jaws face away from the falling direction of the sampler 21. When the sampler 21 is inserted into the sampling area, the jaws open to allow the samples at the bottom of the water to enter the sampler 21. When the sampler 21 is retracted, the jaws are pressed together by the gravity of the samples to form a sealed space, avoiding the samples from detaching from the sampler 21 during the retraction process.

[0038] As Figure 1 shown, a guiding wing 23 is arranged at the top of the sampler 21, and the collision block 5 is fixed at the top end of the guiding wing 23. The function of the guiding wing 23 is to ensure that the sampler does not deviate when falling rapidly in the water. In a preferred embodiment, the number of guiding wings 23 is 4, and the included angle between any two guiding wings 23 is 90 degrees.

[0039] As Figure 1As shown, a weight 24 is installed in the middle section of the sampler 21. A weight limit ring 25 for preventing the weight 24 from falling off is arranged below the weight 24. The number and weight of the weight rings 24 can be adjusted according to the actual situation. An installation bolt passing through the weight limit ring 25 and the sampler 21 is arranged on the weight limit ring 25.

[0040] As Figure 1 shown, a clutch is installed on the winch 6. The clutch is used to connect to the power mechanism 1. The winch 6 is equipped with a clutch control lever 26 for controlling the opening and closing of the clutch. The clutch control lever 26 has two gears: connection and disconnection. When the clutch control lever 26 is in the connection gear, the clutch is connected to the power mechanism 1. At this time, the winch 6 can be controlled by the power mechanism 1. When the power mechanism 1 starts, the winch 6 rotates to complete constant-speed cable laying or constant-speed cable retraction. When the power mechanism 1 is on standby or stopped, the power mechanism 1 is in a locked state, and the winch 6 connected to the power mechanism 1 cannot rotate either and is in a locked state; when the clutch control lever 26 is in the disconnection gear, the connection between the clutch and the power mechanism 1 is disconnected, and the winch 6 is in a free cable-laying state, and the sampler 21 can be quickly lowered for sampling.

[0041] Before underwater sampling, the sampling area is surveyed and mapped to determine the sampling points. During sampling, first drive the ship loaded with the underwater sampling equipment to the designated sampling point, manually adjust the position of the sampler 21, place the sampler 21 above the water surface, and then slowly lower the sampler 21 into the water. The lowering distance is determined according to pre-calculation. When the sampler 21 is lowered to the designated position, change the clutch to the disconnection gear. The sampler 21 starts to free-fall and hits the bottom of the water to obtain the sample. Then, retrieve the sampler 21 and take out the sample.

[0042] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An underwater sampling device, characterized in that: It includes a travel switch (2) for controlling the working state of the power mechanism (1) and a load block (3) suspended. The load block (3) is connected to the travel switch (2), and the load block (3) relies on its own weight to pull the travel switch (2) to keep it in a closed state; The first end of the cable (4) is used to pass through the load block (3) and connect to the collision block (5). The second end of the cable (4) is wound around a winch (6). The part between the second end of the cable (4) and the load block (3) bypasses above the first pulley (7), and the cable (4) contacts the first pulley (7). The winch (6) is connected to the output end of the power mechanism (1).

2. The underwater sampling device according to claim 1, wherein: It also includes a loading platform (8). The loading platform (8) includes an installation part at the upper end and a connection part at the lower end. The first end of the support arm (9) is installed at the front end of the installation part. The first pulley (7) is installed at the second end of the support arm (9). The installation for carrying the winch (6) and the power mechanism (1) is above the installation part. The travel switch (2) is installed on the loading platform (8).

3. The underwater sampling device according to claim 2, characterized in that: The first end of the balance bar (10) is inserted into the rear end of the installation part. The second end of the balance bar (10) is provided with a second pulley (11). A handle (12) for controlling the rotation of the second pulley (11) is arranged on one side of the second pulley (11). A locking device (13) for controlling the rotation state of the second pulley (11) is arranged on the other side of the second pulley (11).

4. The underwater sampling device according to claim 2, wherein: It also includes a support rod (14). The top of the support rod (14) is provided with a loading platform rotating shaft (15). The loading platform rotating shaft (15) extends into the connection part, and the loading platform (8) can rotate around the loading platform rotating shaft (15).

5. The underwater sampling device according to claim 4, characterized in that: Bearings are arranged on the loading platform rotating shaft (15). The outer ring of the bearing contacts the inner wall of the connection part. An operation groove (16) is opened on the connection part. A rotation locking rod (17) for controlling the rotation state of the loading platform (8) extends out from the operation groove.

6. The underwater sampling device according to claim 4, characterized in that: It also includes a base (18). The support rod (14) is fixed on the base (18). The base (18) includes two cross tubes (19) and a vertical tube (20). The two cross tubes (19) respectively pass through both ends of the vertical tube (20), and the cross tubes (19) are perpendicular to the vertical tube (20). The upper surface of the base (18) is provided with a first mounting seat. The bottom of the support rod (14) is provided with a second mounting seat. The first mounting seat and the second mounting seat are fixedly connected.

7. The underwater sampling device according to claim 1, wherein: It also includes a sampler (21). The bottom of the sampler (21) is provided with a sampling head (22). The top of the sampler (21) is fixedly connected to the collision block (5).

8. The underwater sampling device according to claim 7, wherein: The top of the sampler (21) is provided with guiding wings (23). The collision block (5) is fixed at the top of the guiding wings (23).

9. The underwater sampling device according to claim 7, wherein: A weight increasing block (24) is installed in the middle section of the sampler (21). A weight increasing block limiting ring (25) for preventing the weight increasing block (24) from falling off is arranged below the weight increasing block (24).

10. The underwater sampling device according to any one of claims 1-9, characterized in that: A clutch is installed on the winch (6), and the clutch is used to connect the power mechanism (1). The winch (6) is provided with a clutch operating lever (26) for controlling the opening and closing of the clutch.

Images