A river microbial water sampling device

By designing a river microbial water sampling device with fixed frames, suspension racks and acquisition bottle fixing frames, the use of elastic urges and open cover mechanisms, the problems of manual operation hazards and inaccurate sampling depth in the existing devices are solved, and safe and accurate water sampling is achieved.

CN115876527BActive Publication Date: 2025-07-29JIANGSU XINRUI ENVIRONMENTAL MONITORING CO LTD
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Patent Information

Application Number
CN202211443671.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-18
Publication Date
2025-07-29
Estimated Expiration
2042-11-18

AI Technical Summary

Technical Problem

The existing river microbial water sampling device has the risk of manual operation during the sampling process, the sliding of the sampling bottle and the impact of river water, which affects the safety and accuracy of the sampling.

Method used

A river microbial water sampling device including a fixing frame, a suspension rack and a collection bottle fixing frame is designed. The bottle mouth is sealed with an elastic urging member, combined with a cap opening mechanism and an angle adjustment mechanism to ensure that the collection bottle is automatically opened and sealed at a designated water depth, achieving safe and accurate water sampling.

Benefits of technology

By automatically controlling the opening and sealing of the bottle cap, the device improves the safety and accuracy of the sampling process, reduces the risk of manual operation, and ensures the accuracy and consistency of the sampling depth.

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Abstract

The present invention discloses a river microbial water sampling device, which is characterized in that: it includes a fixing frame fixed to the bow of the ship, a suspension frame is detachably installed on the fixing frame, a collection bottle fixing frame is arranged on the suspension frame, a bottle body placement area for horizontally placing the body of the collection bottle is arranged on the collection bottle fixing frame, the bottle body is detachably placed in the bottle body placement area, the bottle mouth of the bottle body is horizontally arranged, a bottle cap for sealing the bottle mouth is horizontally slidably installed on the collection bottle fixing frame, an elastic force applying member is arranged between the bottle cap and the collection bottle fixing frame, and the elastic force of the elastic force applying member forces the bottle cap to be sealed with the bottle mouth; an opening mechanism for separating the bottle cap from the bottle mouth is also arranged on the collection bottle fixing frame; this device can accurately collect the required water samples, save manpower, and improve the accuracy and safety of sampling.
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Description

Technical Field

[0001] The present invention relates to the technical field of sampling devices, and particularly to a river microbial water body sampling device. Background Art

[0002] When it is necessary to detect the river microorganisms in the water body, it is first necessary to sample the water body. Currently, when sampling the water body, a water body sampling device is required; the current river microbial water body sampling device uses a sampling bottle. An operator holds the bottle body of the sampling bottle manually or uses a clamp to hold the bottle body, and then at the bow of a boat traveling upstream, the operator manually puts the sampling bottle into the river water surface about 15 cm below for sampling. When sampling, the bottle mouth of the sampling bottle is aligned with the water flow direction, so that the river water body upstream of the bow of the boat can be collected. However, this sampling method requires manual operation, which is prone to danger, and the sampling bottle may also slip. At the same time, after the river water flushes into the sampling bottle, when the sampling bottle is put in and taken out, the water body on the river surface will also impact the inside of the sampling bottle, which may displace the water in the sampling bottle, resulting in inaccurate sampling depth. Therefore, a river microbial water body sampling device is provided to solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a river microbial water body sampling device that can accurately collect the required water body sample, save manpower, and improve the accuracy and safety of sampling.

[0004] To solve the above technical problem, the technical solution of the present invention is: a river microbial water body sampling device, including a fixing frame fixed to the bow of the boat, a suspension frame is detachably installed on the fixing frame, a collection bottle fixing frame is arranged on the suspension frame, a bottle body placement area for horizontally placing the bottle body of the collection bottle is arranged on the collection bottle fixing frame, the bottle body is detachably placed in the bottle body placement area, the bottle mouth of the bottle body is horizontally arranged, a bottle cap for sealing the bottle mouth is horizontally slidably installed on the collection bottle fixing frame, and an elastic force applying member is arranged between the bottle cap and the collection bottle fixing frame, and the elastic force of the elastic force applying member forces the bottle cap to seal with the bottle mouth; an opening mechanism for separating the bottle cap from the bottle mouth is also arranged on the collection bottle fixing frame.

[0005] As a preferred solution, the opening mechanism includes a towing rope, a winding wheel, and a transition wheel. The transition wheel is installed below the collection bottle fixing frame, the winding wheel is installed on the upper part of the collection bottle fixing frame, one end of the towing rope is fixed to the bottle cap, the towing rope bypasses the transition wheel and then winds around the winding wheel, and a winding handle is arranged on the winding wheel.

[0006] As a preferred solution, the collection bottle fixing frame includes a left end plate, a right end plate and a plurality of limiting connecting rods. One end of each limiting connecting rod is fixed to the left end plate, and the right end plate is detachably fixed to the other end of the limiting connecting rod. A limiting structure for limiting the left side end of the collection bottle is arranged on each limiting connecting rod. The right end plate cooperates with the bottom of the collection bottle. A guide sleeve is arranged on the left end plate. There is an inflow space convenient for river water to flow in between the guide sleeve and the bottle mouth of the collection bottle. The bottle cap is slidably installed in the guide sleeve, and an elastic force applying member is arranged in the guide sleeve. One end of the towing rope penetrates through the left end plate and extends into the guide sleeve to be fixed to the bottle cap.

[0007] As a preferred solution, the limiting structure includes a limiting plate fixed to the middle of each limiting connecting rod. A limiting hole for sleeving on the bottleneck of the collection bottle to limit the collection bottle is arranged on the limiting plate. The diameter of the limiting hole is larger than the size of the bottle mouth of the collection bottle and smaller than the size of the bottle body of the collection bottle.

[0008] As a preferred solution, the fixing frame includes a horizontal fixing plate and a gantry support frame. The horizontal fixing plate is fixed to the bow of the ship, and the lower end of the gantry support frame is hinged to the horizontal fixing plate. An angle adjusting mechanism is arranged between the gantry support frame and the horizontal fixing plate.

[0009] As a preferred solution, the angle adjusting mechanism includes a plurality of linearly arranged jacks arranged on the horizontal fixing plate. A support rod is hinged on the gantry support frame, and the free end of the support rod is inserted into one of the jacks.

[0010] As a preferred solution, a hook is arranged at the upper end of the suspension frame, and the hook is hooked on the cross beam of the gantry support frame.

[0011] As a preferred solution, the cross beam is a cylindrical cross beam, and a circle of hanging holes is arranged on the cross beam. When the support rod is inserted into any one of the jacks, there is a hanging hole facing upwards on the cross beam for the hook to hook conveniently.

[0012] As a preferred solution, a hinged insert block is arranged on the horizontal fixing plate, and a U-shaped fork sleeve sleeved on the hinged insert block is arranged at the lower end of the gantry support frame. The U-shaped insert sleeve is sleeved outside the hinged insert block and a pin is inserted and pulled between them.

[0013] After adopting the above technical solution, the effects of the present invention are as follows: Since the river microbial water sampling device includes a fixing frame fixed to the bow of the ship, a hanging frame is detachably installed on the fixing frame, a collection bottle fixing frame is arranged on the hanging frame, a bottle body placing area for horizontally placing the bottle body of the collection bottle is arranged on the collection bottle fixing frame, the bottle body is detachably placed in the bottle body placing area, the bottle mouth of the bottle body is horizontally arranged, a bottle cap for sealing the bottle mouth is horizontally slidably installed on the collection bottle fixing frame, and an elastic force applying member is arranged between the bottle cap and the collection bottle fixing frame, and the elastic force of the elastic force applying member forces the bottle cap to be sealed with the bottle mouth; an opening mechanism for separating the bottle cap from the bottle mouth is further arranged on the collection bottle fixing frame; first, the fixing frame is installed on the bow of the ship, then the hanging frame is installed on the fixing frame, then the bottle body of the collection bottle is horizontally placed in the bottle body placing area of the collection bottle fixing frame, and the bottle cap is sealed with the bottle mouth through the elastic force applying member, then the collection bottle fixing frame is arranged on the hanging frame and put into the water, then the sealed bottle cap can be opened through the opening mechanism, water flows into the collection bottle, after the collection is completed, the bottle cap is sealed with the bottle mouth through the elastic force applying member again, the collection bottle fixing frame is taken down, and the collection bottle is taken down; this device can accurately collect the required water samples, save manpower, and improve the accuracy and safety of sampling.

[0014] Also, since the opening mechanism includes a towing rope, a wire winding wheel and a transition wheel, the transition wheel is installed below the collection bottle fixing frame, the wire winding wheel is installed on the upper part of the collection bottle fixing frame, one end of the towing rope is fixed on the bottle cap, the towing rope bypasses the transition wheel and then winds around the wire winding wheel, and a wire winding handle is arranged on the wire winding wheel; thus, by rotating the wire winding handle, the towing rope can be driven, so that the bottle cap is opened. In this way, it can be controlled only on the ship, improving safety, and it can ensure that the sampling bottle reaches the specified water depth before the bottle cap is opened, ensuring the accuracy of sampling.

[0015] Also, since the collection bottle fixing frame includes a left end plate, a right end plate and a number of limiting connecting rods, one end of each limiting connecting rod is fixed to the left end plate, the right end plate is detachably fixed to the other end of the limiting connecting rod, and a limiting structure for limiting the left side end of the collection bottle is provided on each limiting connecting rod. The right end plate cooperates with the bottom of the collection bottle. A guide sleeve is provided on the left end plate, and there is an inflow space facilitating the inflow of river water between the guide sleeve and the bottle mouth of the collection bottle. The bottle cap is slidably installed in the guide sleeve, and an elastic force applying member is provided in the guide sleeve. One end of the traction rope passes through the left end plate and extends into the guide sleeve to be fixed to the bottle cap. The number of limiting connecting rods can guide the collection bottle, facilitating the placement of the collection bottle. The collection bottle is positioned through the limiting structure, and finally the collection bottle is sealed by the right end plate, so that the collection bottle is effectively fixed. Then, the guide sleeve can always align the bottle cap with the bottle mouth of the collection bottle, enabling the elastic force applying member to accurately seal the bottle cap and the bottle body, ensuring the sealing performance.

[0016] Also, since the limiting structure includes a limiting plate fixed to the middle of each limiting connecting rod, and a limiting hole for sleeving on the bottleneck of the collection bottle to limit the collection bottle is provided on the limiting plate. The diameter of the limiting hole is larger than the size of the bottle mouth of the collection bottle and smaller than the size of the bottle body of the collection bottle. In this way, the bottle mouth can safely pass through the limiting plate to limit the bottle body, so that the collection bottle will not shake during sampling.

[0017] Also, since the fixing frame includes a horizontal fixing plate and a gantry support frame, the horizontal fixing plate is fixed to the bow of the ship, the lower end of the gantry support frame is hinged to the horizontal fixing plate, and an angle adjusting mechanism is provided between the gantry support frame and the horizontal fixing plate. The angle adjusting mechanism can cause the gantry support frame to swing, thereby changing the height of the collection bottle. Since there are too many uncertain factors during the ship's navigation, the depth of the ship will change, and a certain depth below the water surface is required for sampling. By adjusting the angle adjusting mechanism, the position of the collection bottle can be raised or lowered to ensure that it is at the required sampling depth below the water surface, effectively improving the adaptability.

[0018] Also, since the angle adjusting mechanism includes a number of linearly arranged jacks provided on the horizontal fixing plate, and a support rod is hinged on the gantry support frame, and the free end of the support rod is inserted into one of the jacks. By inserting the free end of the support rod into the jack, the angle adjustment of the gantry support frame is completed, which is convenient and fast.

[0019] Also, since a hook is provided at the upper end of the suspension frame, and the hook is hooked on the cross beam of the gantry support frame. This is convenient for hanging and removing, and further facilitates the replacement of the sampled bottle after sampling.

[0020] Also, since the cross beam is a cylindrical cross beam and a circle of hanging holes are provided on the cross beam, when the support rod is inserted into any one of the jacks, there is a hanging hole facing upwards on the cross beam for the hook to be hooked, so that the jacks and the hanging holes are in one-to-one correspondence, which facilitates the hook to be hooked on the corresponding hanging hole after the angle of the gantry support frame is adjusted, ensuring firm hooking.

[0021] Also, since the horizontal fixed plate is provided with a hinged insertion block, and the lower end of the gantry support frame is provided with a U-shaped fork sleeve inserted on the hinged insertion block, the U-shaped insertion sleeve is sleeved outside the hinged insertion block and a pin is inserted and installed between them in a drawable manner; such an installation structure is simple, ensuring the movable connection and firm connection between the horizontal fixed plate and the gantry support frame, and facilitating installation and disassembly. Brief Description of the Drawings

[0022] The present invention will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 is a perspective view of an embodiment of the present invention;

[0024] Figure 2 is a front view of an embodiment of the present invention;

[0025] Figure 3 is Figure 2 a cross-sectional view taken along line A-A;

[0026] Figure 4 is a structural schematic diagram of the angle adjustment mechanism of an embodiment of the present invention;

[0027] Figure 5 is a structural schematic diagram of the collection bottle fixing frame of an embodiment of the present invention;

[0028] In the drawings: 1, horizontal fixed plate; 2, gantry support frame; 3, counterbore; 4, jack; 5, cross beam; 51, hanging hole; 6, U-shaped fork sleeve; 7, pin; 8, support rod; 9, fixed cylinder; 10, winding wheel; 11, winding handle; 12, hook; 13, limit link; 14, left end plate; 15, right end plate; 16, limit plate; 161, limit hole; 17, collection bottle; 18, bottle cap; 19, traction rope; 20, idler wheel; 21, guide sleeve; 22, return spring; 23, hinged insertion block. Detailed Description of the Embodiment

[0029] The present invention will be further described in detail below through specific embodiments.

[0030] Such as Figures 1 to 5As shown in the figure, a river microbial water sampling device includes a fixing frame fixed to the bow of a ship. A suspension frame is detachably installed on the fixing frame. A fixing frame for the sampling bottle 17 is provided on the suspension frame. A bottle body placement area for horizontally placing the body of the sampling bottle 17 is provided on the fixing frame for the sampling bottle 17. The bottle body is detachably placed in the bottle body placement area. The bottle mouth of the bottle body is horizontally arranged. A bottle cap 18 for sealing the bottle mouth is horizontally slidably installed on the fixing frame for the sampling bottle 17. An elastic force applying member is provided between the bottle cap 18 and the fixing frame for the sampling bottle 17. The elastic force of this elastic force applying member forces the bottle cap 18 to seal with the bottle mouth. An opening mechanism for separating the bottle cap 18 from the bottle mouth is further provided on the fixing frame for the sampling bottle 17.

[0031] In this embodiment, the opening mechanism includes a towing rope 19, a wire winding wheel 10 and a transition wheel 20. The transition wheel 20 is installed below the fixing frame for the sampling bottle 17. The wire winding wheel 10 is installed on the upper part of the fixing frame for the sampling bottle 17. One end of the towing rope 19 is fixed to the bottle cap 18. The towing rope 19 bypasses the transition wheel 20 and is wound around the wire winding wheel 10. A wire winding handle 11 is provided on the wire winding wheel 10. Thus, by rotating the wire winding handle 11, the towing rope 19 can be driven. Since the elastic force applying member has a certain elastic pressure, when the wire winding wheel 10 rotates, the towing rope 19 needs to overcome this elastic pressure when being tightened. The transition wheel 20 can make the transmission of the pulling force by the wire winding wheel 10 more convenient and direct, so that the force on the bottle cap 18 is more direct, and it can be controlled only on the ship, improving safety, and ensuring that the bottle cap 18 is opened after the sampling bottle reaches the specified water depth, ensuring the accuracy of sampling.

[0032] As Figure 5As shown in the figure, the fixed frame of the collection bottle 17 includes a left end plate 14, a right end plate 15 and a number of limiting connecting rods 13. One end of the limiting connecting rod 13 is fixed to the left end plate 14, and the right end plate 15 is detachably fixed to the other end of the limiting connecting rod 13. Each limiting connecting rod 13 is provided with a limiting structure for limiting the left side end of the collection bottle 17. The right end plate 15 cooperates with the bottom of the collection bottle 17. A guide sleeve 21 is provided on the left end plate 14. There is an inflow space between the guide sleeve 21 and the bottle mouth of the collection bottle 17 to facilitate the inflow of river water. The bottle cap 18 is slidably installed in the guide sleeve 21, and an elastic force-applying member is provided in the guide sleeve 21. One end of the towing rope 19 passes through the left end plate 14 and extends into the guide sleeve 21 to be fixed to the bottle cap 18. The elastic force-applying member includes a return spring 22. The return spring 22 is fixedly installed on the left end plate 14. The bottle cap 18 can only slide in the guide sleeve 21 to ensure that the pressure exerted by the return spring 22 on the bottle cap 18 is accurate and stable. The number of limiting connecting rods 13 plays a role in guiding and limiting the collection bottle 17, facilitating the placement of the collection bottle 17. Then, the collection bottle 17 is positioned through the limiting structure, and finally, the collection bottle 17 is blocked by the right end plate 15, so that the collection bottle 17 is effectively fixed. Then, the guide sleeve 21 can always align the bottle cap 18 with the bottle mouth of the collection bottle 17, so that the return spring 22 can accurately seal the bottle cap 18 and the bottle body to ensure the sealing performance.

[0033] Further, the limiting structure includes a limiting plate 16 fixed to the middle of each limiting connecting rod 13. A limiting hole 161 for sleeving on the bottleneck of the collection bottle 17 to limit the collection bottle 17 is provided on the limiting plate 16. The diameter of the limiting hole 161 is larger than the size of the bottle mouth of the collection bottle 17 and smaller than the size of the bottle body of the collection bottle 17. In this way, the bottle mouth can safely pass through the limiting plate 16 to limit the bottle body, so that the collection bottle 17 will not shake during sampling, effectively fixing the position of the bottle body and not preventing water from entering the bottle.

[0034] As Figure 4 shown in the figure, the fixing frame includes a horizontal fixing plate 1 and a gantry support frame 2. The horizontal fixing plate 1 is fixed to the bow of the ship. The lower end of the gantry support frame 2 is hinged to the horizontal fixing plate 1. An angle adjusting mechanism is provided between the gantry support frame 2 and the horizontal fixing plate 1. A number of counterbores 3 for fixing to the bow of the ship are provided on the horizontal fixing plate 1. The horizontal fixing plate 1 is effectively fixed and convenient for installation and disassembly through bolt connection. The angle adjusting mechanism can make the gantry support frame 2 swing, so that the height of the collection bottle 17 also changes. Since there are too many uncertain factors during the ship's voyage, the depth of the ship will change, and a certain depth below the water surface is required for sampling. Through the adjustment of the angle adjusting mechanism, the position of the collection bottle 17 can be lifted or lowered to ensure that it is at the required sampling depth below the water surface, effectively improving the adaptability.

[0035] Furthermore, the angle adjustment mechanism includes a plurality of linearly arranged jacks 4 provided on the horizontal fixing plate 1. A support rod 8 is hinged to the gantry support frame 2, and the free end of the support rod 8 is inserted into one of the jacks 4. The free end of the support frame includes a fixed cylinder 9, which has the same size as the jack 4 and is hinged to the support rod 8. By inserting the fixed cylinder 9 into the jack 4, the angle between the fixed cylinder 9 and the support rod 8 can also be adjusted to cooperate with the gantry support frame 2, thus completing the angle adjustment of the gantry support frame 2 conveniently and quickly.

[0036] As Figures 1 to 3 shown, a hook 12 is provided at the upper end of the suspension bracket, and the hook 12 is hooked on the cross beam 5 of the gantry support frame 2; this is convenient for hanging and removing, and further facilitates the replacement of the sampled bottles that have been collected.

[0037] Furthermore, the cross beam 5 is a cylindrical cross beam 5, and a circle of hanging holes 51 is provided on the cross beam 5. When the support rod 8 is inserted into any one of the jacks 4, there is a hanging hole 51 facing upward on the cross beam 5 for the hook 12 to be hooked. When the gantry support frame 2 is adjusted in angle, the cross beam 5 is fixedly installed on the cross beam 5. Therefore, after swinging, the originally upward hanging hole 51 swings to the side and cannot hook the hook 12. Therefore, the jacks 4 and the hanging holes 51 are arranged in one-to-one correspondence to ensure stable hooking during angle adjustment.

[0038] In this embodiment, a hinged insert block 23 is provided on the horizontal fixing plate 1, and a U-shaped fork sleeve 6 sleeved on the hinged insert block 23 is provided at the lower end of the gantry support frame 2. The U-shaped insert sleeve is sleeved outside the hinged insert block 23 and a pin 7 is inserted and pulled between them; the U-shaped fork sleeve 6 can be quickly sleeved outside the hinged insert block 23 to achieve quick positioning connection, with a simple structure and convenient installation and disassembly.

[0039] Working principle of this embodiment: First, fix the horizontal fixing plate 1 to the bow of the ship by screwing bolts into the counterbore 3. Then, hinge the gantry support frame 2 to the horizontal fixing plate 1 through the pin 7. Next, push the collection bottle 17 along the limit connection until the bottle body contacts the limit plate 16. Finally, seal the tail of the sampling bottle with the right end plate 15. The return spring 22 releases elastic force to make the bottle cap 18 seal the bottle mouth. Then, adjust the angle of the gantry support frame 2 through the support rod 8 and the fixed cylinder 9. Next, hang the hook 12 in the corresponding hanging hole 51, and the sampling bottle is at the appropriate water level. Then, rotate the wire winding handle 11 to make the wire winding wheel 10 rotate, and at the same time, tighten the traction rope 19. The traction rope 19 pulls the bottle cap 18 through the idler wheel 20 to open the bottle mouth, and water flows into the collection bottle 17. After sampling, reverse the wire winding handle 11 to relax the traction rope 19, so that the return spring 22 restores elastic force to press the bottle cap 18 and seal the collection bottle 17. Finally, remove the hook 12, take out the collection bottle 17, and repeat the above operations.

[0040] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and modifications made to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A river microbial water sampling device, characterized in that: It includes a fixing frame fixed to the bow of the ship. A suspension frame is detachably installed on the fixing frame. A collection bottle fixing frame is arranged on the suspension frame. A bottle body placement area for horizontally placing the body of the collection bottle is arranged on the collection bottle fixing frame. The bottle body is detachably placed in the bottle body placement area. The bottle mouth of the bottle body is horizontally arranged. A bottle cap for sealing the bottle mouth is horizontally slidably installed on the collection bottle fixing frame. An elastic force applying member is arranged between the bottle cap and the collection bottle fixing frame, and the elastic force of this elastic force applying member forces the bottle cap to seal with the bottle mouth. An opening mechanism for separating the bottle cap from the bottle mouth is also arranged on the collection bottle fixing frame. The fixing frame includes a horizontal fixing plate and a gantry support frame. The horizontal fixing plate is fixed to the bow of the ship. The lower end of the gantry support frame is hinged to the horizontal fixing plate. An angle adjusting mechanism is arranged between the gantry support frame and the horizontal fixing plate. The angle adjusting mechanism includes a number of linearly arranged jacks arranged on the horizontal fixing plate. A support rod is hinged on the gantry support frame, and the free end of the support rod is inserted into one of the jacks. A hook is arranged at the upper end of the suspension frame, and the hook is hooked on the cross beam of the gantry support frame. The cross beam is a cylindrical cross beam, and a circle of hanging holes is arranged on the cross beam. When the support rod is inserted into any one of the jacks, there is a hanging hole facing upwards on the cross beam for the hook to be hooked conveniently. An articulated insert block is arranged on the horizontal fixing plate, and a U-shaped fork sleeve sleeved on the articulated insert block is arranged at the lower end of the gantry support frame. The U-shaped insert sleeve is sleeved outside the articulated insert block and a pin is inserted and pulled between them.

2. The river microbial water sampling device according to claim 1, characterized in that: The opening mechanism includes a towing rope, a wire winding wheel and a transition wheel. The transition wheel is installed below the collection bottle fixing frame. The wire winding wheel is installed on the upper part of the collection bottle fixing frame. One end of the towing rope is fixed to the bottle cap. The towing rope bypasses the transition wheel and then winds around the wire winding wheel. A wire winding handle is arranged on the wire winding wheel.

3. The river microbial water sampling device according to claim 2, characterized in that: The collection bottle fixing frame includes a left end plate, a right end plate and a number of limiting connecting rods. One end of the limiting connecting rod is fixed to the left end plate, and the right end plate is detachably fixed to the other end of the limiting connecting rod. A limiting structure for limiting the left end of the collection bottle is arranged on each limiting connecting rod. The right end plate cooperates with the bottom of the collection bottle. A guide sleeve is arranged on the left end plate. There is an inflow space convenient for river water to flow in between the guide sleeve and the bottle mouth of the collection bottle. The bottle cap is slidably installed in the guide sleeve. The elastic force applying member is arranged in the guide sleeve. One end of the towing rope penetrates through the left end plate and extends into the guide sleeve to be fixed to the bottle cap.

4. The river microbial water sampling device according to claim 3, characterized in that: The limiting structure includes a limiting plate fixed to the middle of each limiting connecting rod. A limiting hole for sleeving on the bottleneck of the collection bottle to limit the collection bottle is arranged on the limiting plate. The diameter of the limiting hole is larger than the size of the bottle mouth of the collection bottle and smaller than the size of the bottle body of the collection bottle.

Citation Information

Patent Citations

  • River microorganism water body sampling device

    CN218596395U