Underwater sampling clamping and fixing mechanism

Abstract

The utility model discloses a clamping and fixing mechanism for underwater sampling, which belongs to the technical field of underwater clamping devices and comprises a portal frame, an overturning type pneumatic clamp is mounted at the bottom of the portal frame, a plurality of pneumatic clamping components are fixed on the inner side of the overturning type pneumatic clamp, two overturning air pipes are fixed on the outer side of the overturning type pneumatic clamp, and the pneumatic clamping components are fixed on the overturning air pipes. The outer side of the portal frame is further provided with a waterproof motor for driving the overturning type pneumatic clamp to overturn. According to the underwater sample clamping device, the pneumatic clamping assemblies in the longitudinal linear array and the transverse circumferential array are arranged, the periphery of an underwater sample can be clamped in all directions, the stability after clamping is higher, when the overturning type pneumatic clamp clamps the sample to ascend, the overturning type pneumatic clamp is driven by the waterproof motor to rotate by 180 degrees, and the sample clamping efficiency is improved. At the moment, the pneumatic clamping assemblies which do not clamp the sample form a tray, the tray can support the bottom of the sample, and the situation that the sample falls due to the fact that the sample is interfered by external factors such as water flow in the ascending process is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater clamping devices, in particular to an underwater sampling clamping and fixing mechanism. Background Art

[0002] In order to analyze underwater rocks, metals and other materials, a probe is usually used to enter the water for detection, and a sampling clamping and fixing mechanism is installed on the probe for sampling at any time.

[0003] The existing sampling clamping and fixing mechanism mainly clamps and fixes the sample on two or four parallel sides, which cannot meet the requirements of clamping underwater samples. Because when clamping underwater, the sample will be greatly disturbed by external factors such as water flow and underwater organisms. If only the side of the sample is clamped, the sample is likely to fall during the underwater clamping and rising process, resulting in the inability to guarantee the reliability of the sample after being clamped. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an underwater sampling clamping and fixing mechanism, which can clamp the underwater sample in all directions by setting up multiple pneumatic clamping components in longitudinal linear arrays and transverse circular arrays, and has higher stability after clamping. When the flip-type pneumatic clamp clamps the sample to rise, the flip-type pneumatic clamp is driven by a waterproof motor to rotate 180 degrees. At this time, the pneumatic clamping component that does not clamp the sample forms a "tray", which supports the bottom of the sample to prevent the sample from falling due to interference from external factors such as water flow during the rising process, thereby ensuring reliability after clamping.

[0005] In order to solve the above technical problems, the technical solution of the utility model is implemented as follows:

[0006] An underwater sampling clamping and fixing mechanism comprises a gantry;

[0007] A flip-type pneumatic clamp is installed at the bottom of the gantry, and multiple pneumatic clamping components in a longitudinal linear array and a transverse circular array are fixed on the inner side of the flip-type pneumatic clamp, and all the pneumatic clamping components are connected to the inner cavity of the flip-type pneumatic clamp;

[0008] Two symmetrical flip air pipes are fixed on the outside of the flip pneumatic clamp, and the flip air pipes are connected to the inner cavity of the flip pneumatic clamp. Gas tanks are fixed on the left and right bottom ends of the gantry, and the flip air pipes are rotatably connected to the gas tanks.

[0009] An L-shaped seat is also fixed on the outside of the gantry, and a waterproof motor is installed on any L-shaped seat, and the rotating shaft of the waterproof motor is concentrically connected with one end of the flip air pipe;

[0010] The underwater sampling clamping and fixing mechanism is used for clamping and fixing underwater samples. The air delivery tank is connected to an air pump through a soft air pipe, and the air pump is placed above the water surface.

[0011] By adopting the above scheme, the underwater sampling clamping and fixing mechanism can clamp the underwater sample in all directions by setting up multiple pneumatic clamping components in longitudinal linear arrays and transverse circular arrays. The stability after clamping is higher. When the flip-type pneumatic clamp clamps the sample to rise, the flip-type pneumatic clamp is driven by the waterproof motor to rotate 180 degrees. At this time, the pneumatic clamping component that does not clamp the sample forms a "tray", which supports the bottom of the sample to prevent the sample from falling due to interference from external factors such as water flow during the rising process, thereby ensuring reliability after clamping.

[0012] As a preferred embodiment of an underwater sampling clamping and fixing mechanism, the pneumatic clamping assembly includes an outer pneumatic tube sleeve, an inner guide core is slidably installed inside the outer pneumatic tube sleeve, a chuck located outside the outer pneumatic tube sleeve is fixed to the outer end of the inner guide core, an air plug located inside the outer pneumatic tube sleeve is fixed to the inner end of the inner guide core, a return spring for pushing the air plug to move away from the chuck is mounted on the inner guide core, and an air inlet is provided at one end of the outer pneumatic tube sleeve away from the chuck; wherein, the interior of the air plug is filled with an inert gas higher than the external air pressure, and the inert gas is nitrogen, so that the air plug is in sealing contact with the inner wall of the outer pneumatic tube sleeve; wherein, the surface of the chuck is an arc surface.

[0013] By adopting the above scheme, in order to achieve all-round clamping around the sample, gas enters the impact gas plug from the air inlet, at which time the reset spring is compressed and the chuck gradually moves outward until the chuck clamps the surface of the sample. The sample can be fixed all around by the chuck.

[0014] As a preferred embodiment of an underwater sampling clamping and fixing mechanism, a gas delivery cavity is opened inside the gas delivery tank, an air inlet nozzle connected to the gas delivery cavity is fixed outside the gas delivery tank, and at least one gas delivery port is opened on the wall of the flip air pipe.

[0015] By adopting the above scheme, in order to realize pneumatic drive, high-pressure gas is injected from the air inlet nozzle, the gas enters the air delivery cavity, then enters the flip air pipe from the air delivery port, and then the flip air pipe delivers gas to the inner cavity of the flip pneumatic clamp.

[0016] As a preferred implementation of an underwater sampling clamping and fixing mechanism, a single-chip microcomputer is connected to the body of the waterproof motor, and the single-chip microcomputer controls the flipping angle of the flipping pneumatic clamp to be 180 degrees.

[0017] By adopting the above scheme, in order to achieve precise control of flipping, the waterproof motor is controlled by the single chip microcomputer, and the waterproof motor drives the flipping pneumatic clamp to flip 180 degrees each time.

[0018] As a preferred implementation of an underwater sampling clamping and fixing mechanism, a counterweight block having the same weight as the waterproof motor is also installed on the remaining L-shaped seat.

[0019] With the above solution, in order to ensure the balance of the weights on the left and right sides, a counterweight is added to balance the waterproof motor.

[0020] As a preferred implementation of an underwater sampling clamping and fixing mechanism, two symmetrical hanging rings are fixed to the top of the gantry.

[0021] By adopting the above scheme, in order to realize the suspension of the gantry, the hanging ring can be pulled by a steel wire or the like, thereby realizing the lifting and lowering of the gantry.

[0022] As a preferred implementation of an underwater sampling clamping and fixing mechanism, the height of the sample cannot exceed 3 / 4 of the height of the flip-type pneumatic clamp.

[0023] By adopting the above scheme, when the height of the sample is lower than or equal to 3 / 4 of the height of the flip-type pneumatic clamp, it can ensure that the pneumatic clamping assembly at the bottom can clamp and contact the side of the sample, while the pneumatic clamping assembly at the top layer will not clamp and contact the side of the sample. In this way, the clamps and inner guide cores of all the circular arrays on the top layer will form a "tray". When the "tray" is flipped 180 degrees, the "tray" will support the bottom of the sample, which can effectively prevent the sample from falling due to interference from external factors such as water flow during the rising process.

[0024] After adopting the above technical solution, the beneficial effects of the utility model are:

[0025] 1. The underwater sampling clamping and fixing mechanism can clamp the underwater sample in all directions by setting up multiple pneumatic clamping components in longitudinal linear arrays and transverse circular arrays. The stability after clamping is higher. When the flip-type pneumatic clamp clamps the sample to rise, the waterproof motor drives the flip-type pneumatic clamp to rotate 180 degrees. At this time, the pneumatic clamping component that does not clamp the sample forms a "tray". The "tray" will support the bottom of the sample to prevent the sample from falling due to interference from external factors such as water flow during the rising process, thereby ensuring the reliability after clamping;

[0026] 2. In order to achieve all-round clamping around the sample, the gas enters the impact gas plug from the air inlet. At this time, the reset spring is compressed, and the chuck gradually moves outward until the chuck clamps the surface of the sample. The chuck can fix the sample in all directions;

[0027] 3. In order to realize pneumatic drive, the air pump on the water injects high-pressure gas into the air inlet nozzle through the soft air pipe, and then the gas enters the air delivery cavity, and then the gas enters the flip air pipe from the air delivery port, and then the flip air pipe delivers gas to the inner cavity of the flip pneumatic clamp;

[0028] 4. In order to achieve precise control of flipping, the waterproof motor is controlled by the single chip microcomputer, and the waterproof motor drives the flipping pneumatic clamp to flip 180 degrees each time;

[0029] 5. In order to ensure the balance of the weights on the left and right sides, add counterweights to balance the waterproof motor;

[0030] 6. When the height of the sample is less than or equal to 3 / 4 of the height of the flip-type pneumatic clamp, the pneumatic clamping assembly at the bottom can be clamped and contacted to the side of the sample, while the pneumatic clamping assembly at the top layer will not clamp and contact to the side of the sample. In this way, the clamps and inner guide cores of all the circular arrays on the top layer will form a "tray". When the "tray" is flipped 180 degrees, the "tray" will support the bottom of the sample, which can effectively prevent the sample from falling due to interference from external factors such as water flow during the rising process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 A three-dimensional structural diagram of the utility model as the main view;

[0033] Figure 2 It is a three-dimensional structural diagram of the utility model from the rear;

[0034] Figure 3 for Figure 1 A three-dimensional structural diagram of the pneumatic clamping assembly in the initial state;

[0035] Figure 4 for Figure 3 Internal display diagram of local structure;

[0036] Figure 5 for Figure 4 The internal display of the pneumatic clamping assembly;

[0037] Figure 6 for Figure 3 A three-dimensional structural diagram of the sample after being clamped by a pneumatic clamping assembly;

[0038] Figure 7 for Figure 6 The three-dimensional structure diagram of the flip-type pneumatic clamp after flipping 180 degrees.

[0039] Markings in the figure: 1-gantry; 2-flip pneumatic clamp; 3-pneumatic clamping assembly; 301-external pneumatic tube sleeve; 302-inner guide core; 303-chuck; 304-air plug; 305-reset spring; 306-air inlet; 4-flip air pipe; 5-air tank; 6-L-shaped seat; 7-waterproof motor; 8-air delivery cavity; 9-air inlet nozzle; 10-air delivery port; 11-single-chip microcomputer; 12-counterweight; 13-hanging ring; 14-sample. DETAILED DESCRIPTION

[0040] 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.

[0041] like Figures 1 to 7 As shown, an underwater sampling clamping and fixing mechanism comprises a gantry 1;

[0042] A flip-type pneumatic clamp 2 is installed at the bottom of the gantry 1, and a plurality of pneumatic clamping components 3 in a longitudinal linear array and a transverse circumferential array are fixed on the inner side of the flip-type pneumatic clamp 2, and all the pneumatic clamping components 3 are connected to the inner cavity of the flip-type pneumatic clamp 2;

[0043] Two symmetrical flip air pipes 4 are fixed on the outside of the flip pneumatic clamp 2, and the flip air pipes 4 are connected to the inner cavity of the flip pneumatic clamp 2. Gas tanks 5 are fixed on the left and right bottom ends of the gantry 1, and the flip air pipes 4 are rotatably connected to the gas tanks 5.

[0044] An L-shaped seat 6 is also fixed to the outside of the gantry 1, and a waterproof motor 7 is installed on any L-shaped seat 6, and the rotating shaft of the waterproof motor 7 is concentrically connected to one end of the flip air pipe 4;

[0045] The underwater sampling clamping and fixing mechanism is used for clamping and fixing the underwater sample 14. The air delivery tank 5 is connected to the air pump through a soft air pipe, and the air pump is placed above the water surface.

[0046] The underwater sampling clamping and fixing mechanism is capable of clamping the underwater sample 14 in all directions by setting up multiple pneumatic clamping components 3 in longitudinal linear arrays and transverse circular arrays. The stability after clamping is higher. When the flip-type pneumatic clamp 2 clamps the sample 14 and rises, the flip-type pneumatic clamp 2 is driven by the waterproof motor 7 to rotate 180 degrees. At this time, the pneumatic clamping component 3 that does not clamp the sample 14 forms a "tray". The "tray" will support the bottom of the sample 14 to prevent the sample 14 from falling due to interference from external factors such as water flow during the rising process, thereby ensuring reliability after clamping.

[0047] like Figure 5 As shown, the pneumatic clamping assembly 3 includes an outer pneumatic tube sleeve 301, an inner guide core 302 is slidably installed inside the outer pneumatic tube sleeve 301, a chuck 303 located outside the outer pneumatic tube sleeve 301 is fixed to the outer end of the inner guide core 302, an air plug 304 located inside the outer pneumatic tube sleeve 301 is fixed to the inner end of the inner guide core 302, a return spring 305 is mounted on the inner guide core 302 to push the air plug 304 to move away from the chuck 303, and an air inlet 306 is provided at one end of the outer pneumatic tube sleeve 301 away from the chuck 303; wherein, the interior of the air plug 304 is filled with an inert gas higher than the external air pressure, and the inert gas is nitrogen, so that the air plug 304 is in sealing contact with the inner wall of the outer pneumatic tube sleeve 301; wherein, the surface of the chuck 303 is an arc surface. In order to achieve all-round clamping around the sample 14, gas enters the impact gas plug 304 from the air inlet 306. At this time, the return spring 305 is compressed, and the chuck 303 gradually moves outward until the chuck 303 clamps the surface of the sample 14. The chuck 303 can fix the sample 14 all around.

[0048] like Figure 2 , Figure 4 As shown, a gas delivery cavity 8 is provided inside the gas delivery tank 5, an air inlet nozzle 9 connected to the gas delivery cavity 8 is fixed outside the gas delivery tank 5, and at least one gas delivery port 10 is provided on the wall of the flip air pipe 4. In order to realize pneumatic drive, a water air pump injects high-pressure gas into the air inlet nozzle 9 through a soft air pipe, and then the gas enters the gas delivery cavity 8, and then the gas enters the flip air pipe 4 from the gas delivery port 10, and then the flip air pipe 4 delivers gas to the inner cavity of the flip pneumatic clamp 2.

[0049] like Figure 2 As shown, a single chip microcomputer 11 is connected to the body of the waterproof motor 7, and the single chip microcomputer 11 controls the single flip angle of the flip-type pneumatic clamp 2 to be 180 degrees. In order to achieve precise control of flipping, the waterproof motor 7 is controlled by the single chip microcomputer 11, and the waterproof motor 7 drives the flip-type pneumatic clamp 2 to flip 180 degrees each time.

[0050] like Figure 2As shown, a counterweight 12 having the same weight as the waterproof motor 7 is also installed on the remaining L-shaped seat 6. In order to ensure the balance of the counterweights on the left and right sides, the waterproof motor 7 is balanced by adding a counterweight 12.

[0051] like Figure 2 As shown, two mutually symmetrical hanging rings 13 are also fixed on the top of the gantry 1. In order to realize the suspension of the gantry 1, the hanging rings 13 can be pulled by steel wires, so that the lifting of the gantry 1 can be realized.

[0052] like Figure 6 to Figure 7 As shown, the height of the sample 14 cannot exceed 3 / 4 of the height of the flip-type pneumatic clamp 2. When the height of the sample 14 is less than or equal to 3 / 4 of the height of the flip-type pneumatic clamp 2, it can be ensured that the pneumatic clamping assembly 3 at the bottom can clamp and contact the side of the sample 14, while the pneumatic clamping assembly 3 at the top layer will not clamp and contact the side of the sample 14. In this way, the clamps 303 and the inner guide core 302 of all the circumferential arrays of the top layer will form a "tray". When the "tray" is flipped 180 degrees, the "tray" will support the bottom of the sample 14, which can effectively prevent the sample 14 from falling due to interference from external factors such as water flow during the rising process.

[0053] The working principle of this utility model:

[0054] During use, the gantry 1 is slowly lowered underwater by means of a steel wire until the flip-type pneumatic clamp 2 is lowered to where the sample 14 is located. At this time, the sample 14 is located in the middle of the flip-type pneumatic clamp 2 .

[0055] An air pump on water injects high-pressure gas into the air inlet nozzle 9 through a soft air pipe, and then the gas enters the air delivery cavity 8, and then enters the flip air pipe 4 from the air delivery port 10, and then the flip air pipe 4 delivers gas to the inner cavity of the flip pneumatic clamp 2, and then the gas enters the impact air plug 304 from the air inlet 306. At this time, the reset spring 305 is compressed, and the chuck 303 gradually moves outward until the chuck 303 clamps the surface of the sample 14. The chuck 303 can fix the sample 14 in all directions.

[0056] Since the height of the sample 14 is lower than or equal to 3 / 4 of the height of the flip-type pneumatic clamp 2, it can be ensured that the pneumatic clamping assembly 3 at the bottom can clamp and contact the side of the sample 14, while the pneumatic clamping assembly 3 at the top layer will not clamp and contact the side of the sample 14. In this way, the clamps 303 and the inner guide core 302 of all the circular arrays on the top layer will form a "tray".

[0057] The waterproof motor 7 drives the flip-type pneumatic clamp 2 to flip 180 degrees, and the "tray" will support the bottom of the sample 14, which can effectively prevent the sample 14 from falling due to interference from external factors such as water flow during the rising process.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater sampling clamping and fixing mechanism, comprising a gantry (1); Features: A flip-type pneumatic clamp (2) is installed at the bottom of the gantry (1), and a plurality of pneumatic clamping components (3) in a longitudinal linear array and a transverse circular array are fixed on the inner side of the flip-type pneumatic clamp (2), and all the pneumatic clamping components (3) are connected to the inner cavity of the flip-type pneumatic clamp (2); Two symmetrical flip air pipes (4) are fixed on the outside of the flip pneumatic clamp (2), the flip air pipes (4) are connected to the inner cavity of the flip pneumatic clamp (2), and gas tanks (5) are fixed on the left and right bottom ends of the gantry (1), and the flip air pipes (4) are rotatably connected to the gas tanks (5); An L-shaped seat (6) is also fixed on the outer side of the gantry (1), and a waterproof motor (7) is installed on any of the L-shaped seats (6). The rotating shaft of the waterproof motor (7) is coaxially connected to one end of the flip air pipe (4).

2. The underwater sampling clamping and fixing mechanism according to claim 1 is characterized in that: The pneumatic clamping assembly (3) comprises an outer pneumatic tube sleeve (301), an inner guide core (302) is slidably mounted inside the outer pneumatic tube sleeve (301), a chuck (303) located outside the outer pneumatic tube sleeve (301) is fixed to the outer end of the inner guide core (302), an air plug (304) located inside the outer pneumatic tube sleeve (301) is fixed to the inner end of the inner guide core (302), a return spring (305) is mounted on the inner guide core (302) for pushing the air plug (304) to move away from the chuck (303), and an air inlet (306) is provided at one end of the outer pneumatic tube sleeve (301) away from the chuck (303).

3. The underwater sampling clamping and fixing mechanism according to claim 2 is characterized in that: The interior of the gas plug (304) is filled with an inert gas having a pressure higher than that of the outside air, so that the gas plug (304) is in sealing contact with the inner wall of the outer pneumatic tube sleeve (301).

4. The underwater sampling clamping and fixing mechanism according to claim 3 is characterized in that: The surface of the chuck (303) is an arc surface.

5. The underwater sampling clamping and fixing mechanism according to claim 1, characterized in that: The gas delivery tank (5) is provided with a gas delivery cavity (8) inside, and a gas inlet nozzle (9) connected to the gas delivery cavity (8) is fixed outside the gas delivery tank (5). At least one gas delivery port (10) is provided on the wall of the flip air pipe (4).

6. The underwater sampling clamping and fixing mechanism according to claim 1, characterized in that: A single-chip computer (11) is connected to the body of the waterproof motor (7), and the single-chip computer (11) controls the flip-type pneumatic clamp (2) to flip at a single angle of 180 degrees.

7. The underwater sampling clamping and fixing mechanism according to claim 6 is characterized in that: A counterweight block (12) having the same weight as the waterproof motor (7) is also installed on the remaining L-shaped seat (6).

8. The underwater sampling clamping and fixing mechanism according to claim 1, characterized in that: Two mutually symmetrical hanging rings (13) are also fixed on the top of the gantry (1).

9. The underwater sampling clamping and fixing mechanism according to any one of claims 1 to 8, characterized in that: The underwater sampling clamping and fixing mechanism is used for clamping and fixing underwater samples (14); the air delivery tank (5) is connected to an air pump via a soft air pipe, and the air pump is placed above the water surface.

10. The underwater sampling clamping and fixing mechanism according to claim 9, characterized in that: The height of the sample (14) cannot exceed 3 / 4 of the height of the flip-type pneumatic clamp (2).

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