CN112255029A - Portable shipborne crank type water sampler lifting device capable of being fixed on ship edge - Google Patents
Portable shipborne crank type water sampler lifting device capable of being fixed on ship edge Download PDFInfo
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- CN112255029A CN112255029A CN202010935294.2A CN202010935294A CN112255029A CN 112255029 A CN112255029 A CN 112255029A CN 202010935294 A CN202010935294 A CN 202010935294A CN 112255029 A CN112255029 A CN 112255029A
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- 239000013535 sea water Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/48—Manually-movable jib cranes for use in workshops
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a portable shipborne crank type water sampler lifting device capable of being fixed beside a ship, which at least comprises a lifting component, a supporting component, a connecting component and a water sampler, wherein under the condition that the water sampler is connected to the lifting component through the connecting component, the bearing mode of the connecting component can be periodically changed, so that the water sampler can at least have a first swing mode and a second swing mode when being impacted by waves, and the swing amplitude of the water sampler can be reduced under the condition that the water sampler is switched from the first swing mode to the second swing mode. When the waves impact the water sampler, the swing amplitude of the water sampler is reduced by changing the swing form of the water sampler, so that the water sampler is prevented from colliding with a ship body.
Description
Technical Field
The invention belongs to the technical field of aquatic products, and particularly relates to a portable shipborne crank type water sampler lifting device capable of being fixed beside a ship.
Background
With the increasing severity of the water pollution problem, in the hydrology field and the water environment field, researches on drainage basin point source pollution and non-point source pollution are more and more, and the country is also actively developing the remediation of the water pollution problem. The field water sampling is the most basic work of water pollution research and treatment, particularly in some main control sections and representative areas with serious pollution of a drainage basin, and in order to know the space-time distribution condition of the pollution more fully, manual sampling points need to be added on the basis of the arrangement of a field monitoring station. At present, a plurality of types of water collectors are available on the market, and in the sampling process, the water collectors are connected with each other only by one nylon rope, and meanwhile, the water collectors are lifted by the lifting device. A conventional art discloses a water intake device as disclosed in patent document No. CN 111456153A. The apparatus may include: one end of the water taking pipe is a water taking end, and the other end of the water taking pipe is a connecting end; the lifting device can drive the water taking pipe to move; a guide means for guiding a moving direction of the water intake pipe; the water pump is connected with the connecting end of the water taking pipe, and water is pumped through the water taking pipe.
Disclosure of Invention
The invention aims to provide a portable shipborne crank type water sampler lifting device which can be fixed beside a ship and has a protection function, wherein the portable shipborne crank type water sampler lifting device can avoid excessive swinging of a water sampler, reduce the force required for lifting the water sampler and has a protection function.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a portable shipborne crank type water sampler lifting device capable of being fixed beside a ship at least comprises a lifting component, a supporting component, a connecting component and a water sampler, wherein under the condition that the water sampler is connected to the lifting component through the connecting component, the bearing mode of the connecting component can be changed periodically, so that the water sampler can at least have a first swing mode and a second swing mode when being impacted by waves, and the swing amplitude of the water sampler can be reduced under the condition that the water sampler is switched from the first swing mode to the second swing mode. The connecting assembly at least comprises a first connecting rope and a plurality of second connecting ropes, the first connecting rope is in a tight state in a first working state, the second connecting rope is in a loose state, the water sampler can be in a first swing state, the first connecting rope is in a loose state in a second working state, and the second connecting rope is in a tight state, so that the water sampler can be in a second swing state. The first connecting point can be formed between first connecting rope and the water sampler, a plurality of second connecting points can be formed between second connecting rope and the water sampler, and a plurality of second connecting points can use the first connecting point as the centre of a circle and arrange along the circumference interval of water sampler, and when the first connecting rope is switched from the tight state to the loose state, the water sampler can do the motion of freely falling. The lifting assembly at least comprises a box body, a transmission shaft, a transmission assembly and a winding assembly, wherein the transmission shaft is rotatably arranged in the box body, the winding assembly is coupled to the transmission shaft through the transmission assembly, the transmission shaft, the transmission assembly and the winding assembly can synchronously rotate, and the first connecting rope and the second connecting rope are both connected to the winding assembly, so that when the winding assembly rotates, the first connecting rope and the second connecting rope can be wound on the winding assembly. The transmission assembly at least comprises a first transmission gear and a second transmission gear, and the winding assembly at least comprises a first winding wheel meshed to the first transmission gear and a second winding wheel meshed to the second transmission gear, wherein the first connecting rope is connected to the first winding wheel, and the second connecting rope is connected to the second winding wheel. The first transmission gear is coupleable with the first reel via an electromagnetic clutch, wherein the first transmission gear and the first reel rotate in synchronization when the electromagnetic clutch is energized. Through the mode, when the water sampler is impacted by waves, the swing amplitude of the water sampler is reduced by changing the swing form of the water sampler, and then the water sampler is prevented from colliding with a ship body.
The first connecting rope can be connected to the water sampler through the coupling component, so that when the first connecting rope is switched from a tightening state to a loosening state, the coupling component can drive the water sampler to rotate in a mode of releasing elastic potential energy. When a wave impacts a static object, the impact force of the wave can completely act on the object, and the swinging amplitude of the object is larger. The utility model provides a water sampler can rotate, and then when rivers assault water sampler, the impact force can be because the rotation of water sampler and by the partial consumption, finally makes the swing range reduction of water sampler. Through the mode, excessive swinging of the water sampler can be avoided.
The coupling assembly comprises at least a rotating shaft, a coil spring, a meshing gear and a ratchet wheel, wherein the rotating shaft is rotatably arranged on the fixing shaft, two end parts of the coil spring are respectively connected to the fixing shaft and the rotating shaft, and the ratchet wheel is arranged between the meshing gear and the rotating shaft under the condition that the meshing gear is arranged on the end part of the rotating shaft, so that the meshing gear can rotate in a single direction. The water sampler at least comprises an outer frame and an inner frame which are both in a hollow cylindrical shape, the inner frame is nested in the outer frame, turbine blades are arranged on the inner frame, and the coupling assembly can drive the inner frame to rotate under the condition that the coupling assembly releases elastic potential energy. The inner frame and the outer frame can form a channel for fluid to flow between, so that when the turbine blade rotates, the turbine blade can generate an adsorption force to make the fluid flow along the extending direction of the channel. When the water sampler is in a vertical state, water flows in the channel from top to bottom, upward reverse thrust can be generated on the water sampler, and therefore the force required by lifting the water sampler can be reduced. When the water sampler is impacted by waves and is in an inclined state, for example, when the waves impact the water sampler from left to right, the water sampler swings to the right by taking the first connecting point as a swinging point to form the inclined state. At this time, the reverse thrust generated by the water flow flowing in the channel has a component force in the horizontal left direction, and the component force can be partially offset with the horizontal right impact force, so that the swing amplitude of the water sampler can be reduced.
The crank type water sampler lifting device further comprises a clamping assembly coupled with the transmission shaft, the clamping assembly is connected with the water sampler through a third connecting rope, and when the water sampler is impacted by waves, the clamping assembly can receive pulling force applied by the third connecting rope, so that the frictional resistance between the clamping assembly and the transmission shaft can be increased according to the increased pressure applied by the clamping assembly to the transmission shaft. The box body is internally provided with a first inflatable air bag coupled with the clamping assembly, the outer frame is provided with a second inflatable air bag communicated with the first inflatable air bag, when the second inflatable air bag is impacted by waves, gas in the second inflatable air bag can be transmitted to the first inflatable air bag, wherein when the first inflatable air bag is inflated and expanded, the first inflatable air bag can apply extrusion force to the clamping assembly, so that the pressure of the clamping assembly acting on the transmission shaft is increased. Through the mode, the resistance required by rotation of the transmission shaft can be increased when waves impact the water sampler, and then the wrist of a user is prevented from being strained by overlarge impact force.
The invention has the following advantages because the first connecting rope which can be tightened and loosened, the inner frame which can be rotated and the turbine blade which can be rotated are adopted: 1. when the waves impact the water sampler, the swing amplitude of the water sampler is reduced by changing the swing form of the water sampler, so that the water sampler is prevented from colliding with a ship body. 2. The water sampler can rotate, and then when rivers strike the water sampler, the impact force can be partly consumed because of the rotation of water sampler, finally makes the swing range reduction of water sampler. Through the mode, excessive swinging of the water sampler can be avoided. 3. When the water sampler is in a vertical state, water flows in the channel from top to bottom, upward reverse thrust can be generated on the water sampler, and therefore the force required by lifting the water sampler can be reduced. When the water sampler is impacted by waves and is in an inclined state, for example, when the waves impact the water sampler from left to right, the water sampler swings to the right by taking the first connecting point as a swinging point to form the inclined state. At this time, the reverse thrust generated by the water flow flowing in the channel has a component force in the horizontal left direction, and the component force can be partially offset with the horizontal right impact force, so that the swing amplitude of the water sampler can be reduced. 4. In the prior art, a user can hold the crank and pull the sampler out of the water by, for example, rotating the crank clockwise. In the process, the wave impacts the water sampler to apply external force to the transmission shaft, so that the crank rotates anticlockwise. When the impact force of sea waves is large, the impact force easily causes the strain of the wrist of a user. That is, user's wrist is hard to make the crank clockwise rotation and the impact of wave can hinder the clockwise rotation of crank to when the impact dynamics of wave is too big, it can drive the crank anticlockwise rotation, and the direction of rotation of crank can conflict each other this moment, and then leads to the wrist to sprain owing to receiving the impact force suddenly easily. This application is through the fastener spare, can increase the rotatory required resistance of transmission shaft or lock the transmission shaft tightly, and then can avoid too much impact force to transmit user's wrist. Therefore, the invention provides the portable shipborne crank type water sampler lifting device which can be fixed beside a ship and has the protection function, and the device can avoid excessive swing of the water sampler, reduce the force required for lifting the water sampler and has the protection function.
Drawings
FIG. 1 is a schematic view of the overall structure of a lifting device of a crank type water sampler;
FIG. 2 is a schematic structural view of a water sampler;
FIG. 3 is a schematic structural diagram of a distribution board;
FIG. 4 is a schematic cross-sectional view of section B-B;
FIG. 5 is a schematic cross-sectional view taken along section A-A;
FIG. 6 is a partially enlarged schematic view of a portion C;
FIG. 7 is a schematic view of the arrangement of the engaging teeth;
FIG. 8 is a schematic view of the arrangement of the clamping assembly;
FIG. 9 is a schematic view of the structure of the second inflatable bladder.
Reference numerals: a lifting assembly 1, a support assembly 2, a connecting assembly 3, a water sampler 4, an outer frame 4a, an inner frame 4b, a water collecting container 4c, a fixed shaft 5, a first connecting rope 3a, a second connecting rope 3b, a first connecting point 6, a second connecting point 7, a first support rod 2a, a second support rod body b, a wire distribution plate 2c, a clamp 2d, a first wire guide hole 2c-1, a second wire guide hole 2c-2, a box body 1a, a crank 1b, a transmission shaft 1c, a transmission assembly 1d, a wire winding assembly 1e, a first wire winding wheel 1e-1, a second wire winding wheel 1e-2, a first transmission gear 1d-1, a second transmission gear 1d-2, an electromagnetic clutch 8, a turbine blade 9, a coupling assembly 10, a rotating shaft 10a, a coil spring 10b, a meshing gear 10c, a ratchet 10d, a channel 13, a fixed hole 5a, the engaging teeth 14, the third connecting string 15, the clamping assembly 16, the first clamping body 16a, the second clamping body 16b, the compression spring 16c, the base 16d, the first inflatable air bag 17, the second inflatable air bag 18, the first exhaust passage 18a, and the second exhaust passage 18 b.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:
example 1:
as shown in fig. 1 to 7, the present application provides a portable, shipborne crank type water sampler lifting device which can be fixed beside a ship, and the lifting device at least comprises a lifting component 1, a supporting component 2, a connecting component 3 and a water sampler 4. The water sampler 4 is connected to the pulling assembly 1 via a connecting assembly 3. The water sampler 4 can be pulled out of the water by pulling the assembly 1. The connecting assembly 3 is capable of abutting contact with the support assembly 2. The supporting component 2 is used for supporting the water sampler 4 so that the water sampler can be in a suspended state.
The water sampler 4 includes at least an outer frame 4a, an inner frame 4b, and a plurality of water collecting containers 4 c. The inner frame 4b is nested on the outer frame 4a so that the inner frame 4b can rotate about its own central axis when subjected to an external force. For example, the outer frame 4a and the inner frame 4b may each have a cylindrical shape. A fixed shaft 5 is provided in the outer frame 4 a. The inner frame 4b is provided with a mounting hole. The fixed shaft 5 is nestingly disposed in the mounting hole, thereby enabling the inner frame 4b to rotate about the fixed shaft 5. The water collecting containers 4c are each provided on the inner frame 4 b.
The connecting assembly 3 comprises at least a first connecting rope 3a and a plurality of second connecting ropes 3 b. The first connecting string 3a and the second connecting string 3b can be connected to the outer frame 4 a. Specifically, the first connecting point 6 between the first connecting string 3a and the outer frame 4a can be located on the central axis of the outer frame 4 a. Each second connecting string 3b and the outer frame 4a can form at least one second connecting point 7. The second connection points 7 can be arranged at intervals in the circumferential direction of the outer frame 4 a.
The support component 2 at least comprises a first support rod 2a, a second support rod 2b, a wire distribution plate 2c and a clamp 2 d. One end of the first support rod 2a is hinged to the lifting assembly. The other end of the first support rod 2a is provided with a distribution board 2 c. One end of the second support bar 2b is connected to the first support bar 2 a. A clamp 2d is arranged at the other end of the second support rod 2 b. The support assembly 2 can be clamped to the hull edge by clips 2 d. The wire distribution plate 2c is in a disc shape and is provided with a first wire guide hole 2c-1 and a plurality of second wire guide holes 2 c-2. The first wire guide 2c-1 is located at the geometric center of the distribution board 2 c. A plurality of second wire guides 2c-2 are arranged at intervals along the circumference of the distribution board 2 c. The first connecting string 3a may be connected to the pulling assembly 1 after passing through the first wire guide 2 c-1. The second connecting string 3b may be connected to the pulling assembly 1 after passing through the second wire guide 2 c-2.
The pulling assembly 1 at least comprises a box body 1a, a crank 1b, a transmission shaft 1c, a transmission assembly 1d and a winding assembly 1 e. The transmission shaft 1c is rotatably disposed in the case 1 a. The crank 1 is disposed outside the case 1a in such a manner as to be connected to the transmission shaft 1 c. The rotation of the transmission shaft 1c can be realized by rocking the crank 1 b. The winding assembly 1e is coupled to the transmission shaft 1c through the transmission assembly 1d such that the winding assembly 1e and the transmission shaft 1c can rotate synchronously. The winding assembly 1e includes at least a first reel 1e-1 and a second reel 1 e-2. The first connecting rope 3a is connected to the first reel 1 e-1. The second connecting rope 3b is connected to the second reel 1 e-2. When the first reel 1e-1 rotates, the first connecting rope 3a can be wound around the first wire guide pulley 1 e-1. The second connecting rope 3b can be wound around the second wire guide wheel 1e-2 when the second wire guide wheel 1e-2 is rotated.
The transmission assembly 1d includes at least a first transmission gear 1d-1 and a second transmission gear 1 d-2. The first reel 1e-1 is engaged to the transmission shaft 1c through the first transmission gear 1 d-1. The second reel 1e-2 is engaged to the transmission shaft 1c through the second transmission gear 1 d-2. For example, the first reel 1e-1, the second reel 1e-2, and the transmission shaft 1c are each provided with meshing teeth that can be meshed to the transmission assembly 1 d.
The first transmission gear 1d-1 and the first reel 1e-1 are connected by an electromagnetic clutch 8. When the electromagnetic clutch 8 is energized, it can generate an attracting force, thereby enabling the first transmission gear 1d-1 and the first reel 1e-1 to rotate synchronously. When the electromagnetic clutch 8 is de-energized, the attraction force disappears, and at this time, the rotation of the first transmission gear 1d-1 will no longer drive the first reel 1e-1 to rotate synchronously. A controller and a timer may be provided in the case 1a to control the energization and deenergization of the electromagnetic clutch 8. For example, when the timer detects that the clockwise continuous rotation time of the first reel 1e-1 is greater than the set threshold, the controller controls the electromagnetic clutch 8 to be de-energized. When the timer detects that the counterclockwise continuous rotation time of the first reel 1e-1 is greater than the set value, the controller controls the electromagnetic clutch 8 to be energized. The transmission ratios between the different transmission shafts 1c, the transmission assembly 1d and the winding assembly 1e are the same, so that the amount of winding on the first reel 1e-1 and the amount of winding on the second reel 1e-2 are the same as each other per unit time. The length of the first connecting rope 3 is smaller than that of the second connecting rope 3b, so that under the action of gravity of the water sampler 4, the first connecting rope 3a can be in a tightened state, the second connecting rope 3b can be in a loosened state, and the water sampler lifting device is in a first working state at the moment. In use, the user holds the handle 1b with his hand to continue rotating the drive shaft 1 c. When the transmission shaft 1c starts to rotate, the electromagnetic clutch 8 is in a power-on state, so that the first reel 1e-1 and the second reel 1e-2 synchronously rotate clockwise, the first connecting rope 3a can be wound on the first reel 1e-1, and the second connecting rope 3b can be wound on the second reel 1e-2, in the process, the first connecting rope 3a is in a tight state, and the second connecting rope 3b is in a loose state, namely, in the process, the first connecting rope 3a can completely bear the gravity of the water sampler 4. When the first reel 1e-1 continues to rotate clockwise for a time greater than a set threshold, the electromagnetic clutch 8 is de-energized, at which time the first reel 1e-1 will rotate counterclockwise under the weight of the sprinkler 4, causing the first connecting rope 3a to be unwound from the first reel 1e-1 until the second connecting rope 3b is in a taut state (at which time the sprinkler-puller device is in a second operating state). That is, after the electromagnetic clutch 8 is de-energized, the second connecting string 3b will be completely subjected to the weight of the water sampler 4. When the first connecting rope 3a is in a tightened state, the water sampler 4 is impacted by waves in the process of being pulled out of water, and then presents a first swing state. In the first swing mode, the water sampler 4 swings back and forth along the direction of the impact force applied to the water sampler. For example, when the water sampler 4 is subjected to a horizontal rightward impact, it will first move to the right and, after swinging to the highest point, will swing to the left. When the electromagnetic clutch 8 is switched from the power-on state to the power-off state, at this moment, since the second connecting rope 3b is in the slack state, the water sampler 4 will perform free-fall movement so that the second connecting rope 3b is gradually tightened, and the water sampler 4 will assume a second swing state. In the second swing state, the water sampler 4 will make a conical swing motion. When the water sampler 4 is converted from the first swing state to the second swing state, the swing amplitude of the water sampler 4 is reduced, and then the water sampler 4 can be prevented from excessively shaking to collide with a ship body.
The fixed shaft 5 is provided with a coupling assembly 10. The first connecting string 3a is connected to the inner frame 4b via the coupling assembly 10. When the first connecting rope 3a is in a tightened state to pull the water sampler 4, the first connecting rope 3a can apply an external force to the coupling assembly 10, so that the coupling assembly 10 stores elastic potential energy. When the first connecting string 3a is switched from the tightened state to the loosened state, the elastic potential energy of the coupling assembly 1 can be released, so that the inner frame 4b can rotate around the fixed shaft 5 under the effect of the elastic potential energy of the coupling assembly 10. Specifically, the coupling assembly 10 includes at least a rotating shaft 10a, a coil spring 10b, a meshing gear 10c, and a ratchet 10 d. The rotating shaft 10a is rotatably provided in the fixed shaft 5. The axial direction of the fixed shaft 5 and the axial direction of the rotating shaft 10a are perpendicular to each other. For example, the fixed shaft 5 is provided with a fixing hole 5a, and the rotating shaft 10a is nested in the fixing hole 5 a. A coil spring 10b is disposed in the fixing hole 5a, and both ends of the coil spring 10b are connected to an inner wall of the fixing hole 5a and an outer wall of the rotation shaft 10a, respectively. The first connecting rope 3a is connected to the rotating shaft 10 a. In the initial state, the first connecting rope 3a is wound around the rotating shaft 10 a. When the crank 1b is rotated, the first connecting string 3a is unwound from the rotating shaft 10a, thereby rotating the rotating shaft 10a and finally causing the coil spring 10b to store elastic potential energy. The rotating shaft 10a is provided with meshing gears 10c on both end portions thereof. A ratchet 10d is provided between the rotating shaft 10a and the engaging gear 10c to effect rotation of the engaging gear 10 c. For example, when the rotary shaft 10a rotates clockwise, the coil spring 10b stores elastic potential energy while the meshing gear 10c is in a stationary state. When the rotating shaft 10a rotates counterclockwise, the coil spring 10b releases the elastic potential energy, and at this time, the meshing gear 10c rotates synchronously by the ratchet 10 d. The inner frame is provided with engaging teeth 14 in the form of a ring. The meshing gear 10c can mesh with the meshing teeth 14, and the rotation of the inner frame can be achieved by the rotation of the meshing gear 10 c.
The inner frame 4b is nested within the outer frame 4 a. The inner frame 4b is provided with turbine blades 9. The turbine blades 9 can be rotated in synchronization with the inner frame 4 b. The inner frame 4b and the outer frame 4a can form a channel 13 therebetween. When the turbine blades 9 rotate, they can generate an adsorption force to cause the fresh water to flow in the extending direction of the channel 13.
Example 2:
as shown in fig. 1, when the crank type water sampler lifting device of the present invention is used, the box body 1a is first moved to the edge of the hull. The first support bar 2a is rotated clockwise so that the second support bar 2b can be in a vertically downward state. The box 1a can be fixed to the edge of the ship body by the clips 2 d. In the initial state, the first connecting cord 3a is in a taut state, the second connecting cord 3b is in a slack state, and the electromagnetic clutch 8 is in an energized state. Then, the rotation of the transmission shaft 1c can be realized by holding the crank handle 1b by hand, at the moment, the transmission assembly 1d and the winding assembly 1e rotate synchronously, so that the connecting assembly 3 can be wound on the winding assembly 1e, and the water sampler 4 can be pulled out from the water in the above mode.
The electromagnetic clutch 8 can be periodically powered on and powered off, and when the electromagnetic clutch 8 is powered off, the water sampler 4 can make free fall movement to enable the second connecting rope 3b to be switched from a loose state to a tight state due to the fact that the length of the second connecting rope 3b is larger than that of the first connecting rope 3 a. When the first connecting rope 3a is in a tightened state, the water sampler 4 will take on a first swing shape of swinging back and forth after being impacted by waves. When the second connecting rope 3b is tightened gradually, the water sampler 4 gradually moves in a conical pendulum manner, the kinetic energy of the water sampler can be effectively consumed by the conical pendulum movement, so that the swing amplitude of the water sampler 4 is reduced, and the water sampler is prevented from excessively swinging and colliding with a ship body.
As shown in fig. 2 and 6, when the first connecting cord 3a is in a tightened state, the first connecting cord 3a can be wound on the second reel 1e-2, at which time the first connecting cord 3a will pull the rotating shaft 10a to rotate, and the first connecting cord 3a will be unwound from the rotating shaft 10a, and the rotation of the rotating shaft 10a will cause the coil spring 10b to store elastic potential energy. Subsequently, when the electromagnetic clutch 8 is de-energized, the water sampler 8 will make free-fall movement, at which time the elastic potential energy of the coil spring 10b will be released to rotate the rotation shaft 10a, and finally the inner frame 4b will be rotated by the meshing gear 10 c. When a wave impacts a static object, the impact force of the wave can completely act on the object, and the swinging amplitude of the object is larger. The utility model provides a water sampler 4 can rotate, and then when rivers assault water sampler 4, the impact force can be because water sampler 4's rotation and by the partial consumption, finally makes water sampler 4's swing range reduce. In this way, excessive swinging of the water sampler 4 can be avoided.
As shown in fig. 4 and 5, when the inner frame 4b rotates, it can bring the turbine blades 9 into synchronous rotation. The rotation of the turbine blades 9 will create an attractive force so that the seawater above the turbine blades 9 can be sucked into the channel 13 and finally discharged from below the channel 13 at a certain exit velocity. When water sampler 4 is in vertical state, rivers flow from top to bottom in passageway 13, and then can produce ascending thrust against water sampler 4 to can reduce water sampler and carry the required power of carrying. When the water sampler 4 is inclined due to the impact of waves, for example, as shown in fig. 2, when a wave impacts the water sampler 4 from left to right, the water sampler 4 swings to the right with the first connecting point 6 as a swing point to form an inclined state. At this time, the reverse thrust generated by the flow of the water current in the passage 13 has a component force in the horizontal leftward direction, which can partially cancel the horizontal rightward impact force, and the swing amplitude of the water sampler 4 can be reduced.
Example 3:
as shown in fig. 1, 8 and 9, the lifting device of the crank type water sampler of the present application further includes a third connecting rope 15. Also disposed within the housing 1a is a clamping assembly 16. Both ends of the third connecting string 15 are connected to the inner frame 4b and the clamping assembly 16, respectively. The clamping assembly 16 can be coupled with the drive shaft 1 c. When the inner frame 4b is impacted by waves, acting force is applied to the clamping assembly through the third connecting rope 15, so that the clamping assembly 16 works to apply holding force to the transmission shaft 1c, and at the moment, the frictional resistance between the clamping assembly 16 and the transmission shaft 1c is increased, so that the rotation of the transmission shaft 1c can be limited. In particular, the clamping assembly 16 comprises at least a first clamping body 16a, a second clamping body 16b, a compression spring 16c and a base 16 d. The first clamping body 16a and the second clamping body 16b are each in the shape of a semi-circular ring, which can lock the transmission shaft 1c in a manner opposing each other. The first clamp body 1a is slidably provided on the base 16 d. The connection between the first clamping body 16a and the second clamping body 16b is effected by means of a compression spring 16c, which compression spring 16c is compressed when the distance between the first clamping body 16a and the second clamping body 16b is reduced. The third connecting rope 15 can be connected to the first clamping body 16a, so that when the inner frame 4b is impacted by waves, the third connecting rope 15 can pull the first clamping body 16, so as to pull the first clamping body 16a to move, and at the moment, the distance between the first clamping body 16a and the second clamping body 6b is reduced to hold the transmission shaft 1c tightly. In the prior art, a user can hold the crank 1b by hand and pull the water sampler 4 out of the water by, for example, rotating the crank 1b clockwise. In the process, the impact of the sea waves on the water sampler 4 applies external force to the transmission shaft 1c, so that the crank 1b rotates anticlockwise. When the impact force of sea waves is large, the impact force easily causes the strain of the wrist of a user. That is, user's wrist is power makes crank 1b clockwise rotation and the impact of wave can hinder the clockwise rotation of crank to when the impact dynamics of wave was too big, it can drive crank anticlockwise rotation, and the direction of rotation of crank can conflict each other this moment, and then leads to the wrist to spraining owing to receiving the impact force suddenly. This application is through clamp 16, can increase the rotatory required resistance of transmission shaft 1c or lock transmission shaft 1c tightly, and then can avoid too much impact force to transmit user's wrist. This application only needs to receive the instant of impact at the water sampler and triggers clamping assembly and exert and embrace power, and clamping assembly just resumes lax state afterwards. The holding force does not need to be continuously applied, and only needs to be applied at the moment of impact.
The case 1a is also provided therein with a first inflatable air bag 17. The outer frame 4a is provided with a second inflatable bladder 18. The second inflatable bladder 18 is provided with at least one first vent passage 18a and a plurality of second vent passages 18 b. The first inflatable bag 17 communicates with the second inflatable bag 18 through a first exhaust passage 18 a. The second inflatable bladder 18 is vented to atmosphere through a second vent passage 18 b. When a wave impacts the second inflatable bladder 18, the second inflatable bladder 18 is compressed so that a part of the gas inside it is injected into the first inflatable bladder 17 through the second exhaust passage 18a and another part of the gas is exhausted to the atmosphere through the second exhaust passage 18 b. In the above process, the first inflatable airbag 17 forms an extrusion force on the first clamping body 16a after being inflated and expanded, so as to push the first clamping body 16a to move to complete the holding of the transmission shaft 1c, and meanwhile, the gas exhausted through the second exhaust passage 18b applies an action force in the opposite direction to the water sampler 4, so that the swing amplitude of the water sampler 4 can be reduced. A first diaphragm type check valve may be provided in each of the first and second exhaust passages 1a and 18b so that the gas can move only in one direction (i.e., the external gas cannot enter the second airbag through the first and second exhaust passages 18a and 18 b). The second inflatable air bag 17 may be provided with a third air discharge passage having a second diaphragm type check valve, so that the external air can only flow in one direction to enter the second inflatable air bag 17 through the third air discharge passage. The first inflatable air bag 17 may also be provided with a diaphragm type check valve so that automatic exhaust is realized when the internal pressure thereof is greater than a set value, or an electric valve may be provided thereon so as to realize manual exhaust thereof. The conduit between the first and second inflatable air bags may be arranged along the extending direction of the third connecting rope (similar to the way the lifting rope and the oxygen pipe are bound to each other during diving).
Claims (10)
1. A portable shipborne crank type water sampler lifting device capable of being fixed beside a ship at least comprises a lifting assembly (1), a supporting assembly (2), a connecting assembly (3) and a water sampler (4), and is characterized in that under the condition that the water sampler (4) is connected to the lifting assembly (1) through the connecting assembly (3), the bearing mode of the connecting assembly (3) can be changed periodically, so that the water sampler (4) can at least have a first swing mode and a second swing mode when being impacted by waves, wherein under the condition that the water sampler (4) is switched from the first swing mode to the second swing mode, the swing amplitude of the water sampler (4) can be reduced.
2. A crank type water sampler pulling device according to claim 1, wherein the connection assembly (3) comprises at least a first connection rope (3a) and a number of second connection ropes (3b), the first connection rope (3a) being in a taut state and the second connection rope (3b) being in a slack state in a first operating state, so that the water sampler (4) can be in the first swing configuration, and the first connection rope (3a) being in a slack state and the second connection rope (3b) being in a taut state in a second operating state, so that the water sampler (4) can be in the second swing configuration.
3. The crank type water sampler lifting device according to claim 2, wherein a first connecting point (6) can be formed between the first connecting rope (3a) and the water sampler (4), a plurality of second connecting points (7) can be formed between the second connecting rope (3b) and the water sampler (4), the plurality of second connecting points (7) can be arranged at intervals along the circumferential direction of the water sampler (4) with the first connecting point (6) as a circle center, and when the first connecting rope (3a) is switched from the tightened state to the loosened state, the water sampler (4) can move in a free falling manner.
4. The crank type water sampler pulling device according to claim 3, wherein the pulling assembly (1) at least comprises a box body (1a), a transmission shaft (1c), a transmission assembly (1d) and a winding assembly (1e), the transmission shaft (1c) is rotatably arranged in the box body (1a), the winding assembly (1e) is coupled to the transmission shaft (1c) through the transmission assembly (1d), so that the transmission shaft (1c), the transmission assembly (1d) and the winding assembly (1e) can synchronously rotate, said first connecting cord (3a) and said second connecting cord (3b) being connected to said winding assembly (1e) so that, upon rotation of said winding assembly (1e), the first connecting rope (3a) and the second connecting rope (3b) can be wound on the winding assembly (1 e).
5. A crank type water sampler pulling device according to claim 4, characterized in that the transmission assembly (1d) comprises at least a first transmission gear (1d-1) and a second transmission gear (1d-2), the winding assembly (1e) comprises at least a first reel (1e-1) meshed to the first transmission gear (1d-1) and a second reel (1e-2) meshed to the second transmission gear (1d-2), wherein the first connecting rope (3a) is connected to the first reel (1e-1) and the second connecting rope (3b) is connected to the second reel (1 e-2).
6. A crank type water sampler pulling device according to claim 5, characterized in that the first transmission gear (1d-1) can be coupled to the first reel (1e-1) via an electromagnetic clutch (8), wherein the first transmission gear (1d-1) and the first reel (1e-1) rotate synchronously when the electromagnetic clutch (8) is energized, and the first connecting rope (3a) can be connected to the water sampler (4) via a coupling assembly (10), so that the coupling assembly (10) can rotate the water sampler (4) in a manner of releasing elastic potential energy when the first connecting rope (3a) is switched from the tightened state to the loosened state.
7. The crank type water sampler lifting device according to claim 6, wherein the coupling assembly (10) comprises at least a rotating shaft (10a), a coil spring (10b), a meshing gear (10c) and a ratchet (10d), the rotating shaft (10a) is rotatably disposed on the fixed shaft (5), both ends of the coil spring (10b) are respectively connected to the fixed shaft (5) and the rotating shaft (10a), and the ratchet (10d) is disposed between the meshing gear (10c) and the rotating shaft (10a) to enable unidirectional rotation of the meshing gear (10c) in a case where the meshing gear (10c) is disposed on the end of the rotating shaft (10 a).
8. The crank type water sampler pulling device according to claim 7, wherein the water sampler (4) comprises at least an outer frame (4a) and an inner frame (4b) which are hollow cylindrical, the inner frame (4b) is nested in the outer frame (4a), turbine blades (9) are arranged on the inner frame (4), the inner frame (4b) can be driven to rotate by the coupling assembly (10) under the condition that the coupling assembly (10) releases elastic potential energy, and a channel (13) for fluid flow can be formed between the inner frame (4b) and the outer frame (4a), so that when the turbine blades (9) rotate, the turbine blades can generate adsorption force to enable fluid to flow along the extending direction of the channel (13).
9. A crank type water sampler pulling device according to claim 8, characterized in that it further comprises a clamping assembly (16) coupled to the drive shaft (1c), the clamping assembly (16) being connected to the water sampler (4) by a third connecting rope (15), wherein the clamping assembly (16) can be subjected to a pulling force exerted by the third connecting rope (15) when the water sampler (4) is impacted by a wave, so that the frictional resistance between the clamping assembly (16) and the drive shaft (1c) can be increased in such a way that the pressure exerted by the clamping assembly (16) on the drive shaft (1c) is increased.
10. A crank type water sampler pulling device according to claim 9, characterized in that the box body (1a) is provided with a first inflatable air bag (17) coupled with the clamping component (16), the outer frame (4a) is provided with a second inflatable air bag (18) communicated with the first inflatable air bag (17), when the second inflatable air bag (18) is impacted by waves, the gas in the second inflatable air bag (18) can be transmitted to the first inflatable air bag (17), wherein when the first inflatable air bag (17) is inflated, the first inflatable air bag can apply extrusion force to the clamping component (16), so that the pressure of the clamping component (16) on the transmission shaft (1c) is increased.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010935294.2A CN112255029B (en) | 2020-09-08 | 2020-09-08 | Portable shipborne crank type water sampler lifting device capable of being fixed on ship side |
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| CN202010935294.2A CN112255029B (en) | 2020-09-08 | 2020-09-08 | Portable shipborne crank type water sampler lifting device capable of being fixed on ship side |
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| CN112255029B CN112255029B (en) | 2024-02-27 |
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