Depth-keeping sampler
By designing a fixed-depth sampler, an automatic water sample collection at a specific depth is achieved by using a spring-loaded buoy mechanism. This solves the problems of complex, time-consuming, or costly operation in existing technologies, and achieves low-cost and efficient deep-water sampling.
Patent Information
- Application Number
- CN202520332859.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing portable water samplers cannot specifically limit the water depth for sampling, making it difficult to meet the needs of researchers for water samples at specific depths. Existing methods are complex, time-consuming, or costly, and their accuracy is not high.
A fixed-depth sampler was designed, which utilizes a spring-loaded float mechanism to automatically open the inlet for sampling at a specific depth. The float automatically opens and closes under water pressure to collect water samples at a specific depth, reducing costs by not relying on precision instruments.
It enables simple and low-cost deep-water sampling, ensures the authenticity and representativeness of sample sources, and is easy to operate, reducing operational complexity and cost.
Smart Images
Figure CN223664331U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water sampling device especially relates to a depth sampler. BACKGROUND
[0002] Water sampler is a kind of equipment for taking water quality analysis sample (raw water, sewage and sludge etc.), is the surface water, groundwater, sewage, seawater monitoring collection water sample when the necessary tool of matching.Currently, most of the convenient sampler device on the market mainly includes water inlet, water inlet valve, water outlet and water outlet closing system.Water sampler is usually made of corrosion-resistant, light and durable material, which can be stainless steel or organic glass.
[0003] The existing portable water sampler cannot have specific restriction to water depth, usually can only take surface water body, and it is difficult to meet the demand of researchers to specific depth water sample, which limits the depth and accuracy of water quality research to some extent.Currently, some researchers try to realize deep sampling by increasing additional equipment, such as manually adjusting sampling depth using rope, float or weight etc.However, this method is not only complex and time-consuming, but also has low precision, and is easily affected by human factors to cause large error.In addition, there is an automatic diving device based on motor drive, which improves efficiency but is high in cost and not suitable for universal promotion.Overall, the current various methods either are too simple to ensure the true representativeness of sample source or excessively rely on precision instruments and hinder the possibility of its wide application. SUMMARY
[0004] In order to overcome the shortcomings of complex operation, time-consuming and high cost in the prior art, the utility model provides a depth sampler, which comprises:
[0005] The bottle body is provided with a water inlet at the bottom;
[0006] The floating plate is located in the interior of the bottle body, and the floating plate is arranged at the water inlet; the interior of the bottle body is provided with a fixing member, the fixing member is provided with a spring, one end of the spring is connected with the floating plate, and the spring is in a pre-pressed state.
[0007] Optionally, the fixing member is a crossbeam, and the two ends of the crossbeam are fixed on the side walls in the interior of the bottle body.
[0008] Optionally, the crossbeam is provided with an adjusting channel, the adjusting channel is provided with an internal thread, the adjusting channel is provided with a stud, the stud is threadedly connected with the adjusting channel, and one end of the spring is connected with the stud.
[0009] Optionally, the water inlet is further provided with a bottom cover, the bottom cover is provided with an opening same as the water inlet, a step is arranged around the opening, and the edge of the floating plate abuts against the step.
[0010] Optionally, the edge of the floating plate is provided with a sealing member, and the sealing member abuts against the step.
[0011] Optionally, the bottom cover is provided with a telescopic column, and the telescopic column is connected with the floating plate.
[0012] Optionally, a bottle mouth of the top of the bottle body is provided with a detachable cover plate.
[0013] Optionally, the bottle body is provided with a handle.
[0014] Optionally, the side wall of the bottle body comprises an inner wall and an outer wall, and a gap is formed between the inner wall and the outer wall.
[0015] Optionally, the top of the floating plate is provided with a spring connecting piece, and the spring connecting piece is connected with the spring.
[0016] The beneficial effects of the utility model are as follows: the spring is arranged to press the floating plate, so that the floating plate is opened only at a specific depth to make water enter the bottle body, and water sampling is completed; after the sampling is completed, the spring can continue to press the floating plate to the water inlet, the bottle body is taken out from the water, and the purpose of deep water sampling is achieved; the method is simple to operate, precise instruments are not needed to complete deep water sampling, and operation cost is greatly saved. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model is further described below in combination with the drawings and embodiments.
[0018] Figure 1 is an assembly schematic view in some embodiments;
[0019] Figure 2 is a structural schematic view of a cross beam, an adjusting channel and a stud in some embodiments;
[0020] Figure 3 is a structural schematic view of a floating plate, a bottom cover and a bottle body in some embodiments.
[0021] BRIEF DESCRIPTION OF DRAWINGS:
[0022] 1, bottle body; 101, water inlet; 2, floating plate; 102, spring; 103, cross beam; 104, adjusting channel; 105, stud; 201, bottom cover; 202, sealing element; 203, telescopic column; 106, cover plate; 107, handle; 108, inner wall; 109, outer wall; 110, gap; 204, spring connecting piece; 111, base. DETAILED DESCRIPTION
[0023] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0024] This utility model provides a fixed-depth sampler for water quality sampling and testing, especially deep-water sampling and testing. It is used to sample water in water bodies and includes: a bottle body 1 with a water inlet 101 at the bottom; a float 2 located inside the bottle body 1, the float 2 being set at the water inlet 101; a fixing component inside the bottle body 1, a spring 102 on the fixing component, one end of the spring 102 being connected to the float 2, and the spring 102 being in a pre-compressed state.
[0025] In practice, a fixing component is installed inside the bottle body 1, and a spring 102 is installed on the fixing component. The spring 102 is connected to the internal float 2. The spring 102 is in a pre-compressed state, and the float 2 is pressed down by the spring 102 at the water inlet 101 of the bottle body 1. The float 2 covers the water inlet 101 of the bottle body 1. The spring 102 applies elastic force to the float 2 to block the water inlet 101, keeping the inside of the bottle body 1 sealed when not in water or in shallow water. The assembled bottle body 1 is placed in the water area where sampling is required. The bottle body 1 enters the water and gradually sinks. As the bottle body 1 gradually sinks, the water pressure gradually increases. After reaching the predetermined depth, the pressure of the water depth on the float 2 is greater than or equal to that of the spring 102. After pressure is applied to the float plate 2, the float plate 2 is pushed open by the water, and the water enters the bottle body 1. When the bottle body 1 is full of water and the pressure of the bottle body 1 and the external environment are balanced, the spring 102 presses the float plate 2 against the water inlet 101 to complete the sealing of the water inlet 101 of the bottle body 1. By setting the spring 102 to press the float plate 2, the float plate 2 will only be opened at a specific depth to allow water to enter the bottle body 1 and complete the water sample collection. After the collection is completed, the spring 102 can continue to press the float plate 2 against the water inlet 101 to remove the bottle body 1 from the water to achieve the purpose of deep water sampling. This method is simple to operate, does not require the use of precision instruments to complete deep water sampling, and greatly saves operating costs.
[0026] Further, when the sampler is immersed in water, the floating baffle in contact with the spring 102 is first kept closed under the pressure of the spring 102, and the force is related to the spring 102, according to Hooke's law: Fspring=kΔx (where k is the stiffness coefficient, and Δx is the deformation amount). In addition, after being immersed in water, each surface of the object is subjected to water pressure, and the floating baffle is subjected to upward pressure P=pg h, and the force Fpressure=pg hS (where p, g, h, and S are the density of water, the gravitational constant, the water depth, and the bottom area of the floating baffle, respectively), and as the sampler is immersed in water to a greater depth, the baffle is gradually subjected to water pressure, and when Fpressure>Fspring, the floating plate 2 is opened, the target water enters, and the depth sampling is completed. In addition, since the water flow enters the container, the water-retaining floating plate 2 is subjected to the pressure generated by the gradually entering water in addition to the pressure applied by the spring 102, so it needs to sink continuously to keep the floating plate 2 open, and the maximum sinking depth is The sampling depth expression relationship is: (where v is the volume of the bottle).
[0027] In some embodiments, the fixing member is a crossbeam 103, and the two ends of the crossbeam 103 are fixed to the inner side walls of the bottle body 1, respectively.
[0028] In implementation, the two ends of the crossbeam 103 are fixed to the inner wall 108 of the bottle body 1, one end of the spring 102 is connected to the crossbeam 103, the other end of the spring 102 is connected to the floating plate 2, one end of the spring is fixed on the crossbeam 103, and the other end of the spring 102 applies a downward pressure to the floating plate 2.
[0029] Further, the materials of the bottle body 1 and the crossbeam 103 can be one or a combination of stainless steel, organic glass, polypropylene, high-density polyethylene, and polyester. Changing the height of the crossbeam in the bottle body can change the pressure applied by the spring to the floating plate. For example, the lower the crossbeam, the more the spring is compressed, and the pressure of the spring on the floating plate is further increased, so that the bottle body can collect water samples in deeper water. The height of the crossbeam in the bottle body can be selected according to the depth of the water sample to be collected.
[0030] In some embodiments, the crossbeam 103 is provided with an adjusting channel 104, the adjusting channel 104 is provided with an internal thread, the adjusting channel 104 is provided with a stud 105, the stud 105 is threadedly connected with the adjusting channel 104, and one end of the spring 102 is connected with the stud 105.
[0031] In implementation, the adjusting channel 104 is arranged on the cross beam 103, the adjusting channel 104 is internally threaded, the stud 105 is screwed into the adjusting channel 104, the stud 105 is fixed in threaded cooperation with the adjusting channel 104, the spring 102 is connected with the stud 105, one end of the spring 102 is connected with the stud 105, the one end of the spring 102 can change height along with the stud 105, the position of the one end of the spring 102 is changed by changing the position of the stud 105 in the adjusting channel 104, and then the pressure of the spring 102 on the floating plate 2 is changed, the pressure of the spring 102 on the floating plate 2 is changed by the stud 105, and water of different depths is taken.
[0032] Further, two cross beams 103 are arranged in the bottle body 1, the two cross beams 103 are respectively an upper cross beam and a lower cross beam, the upper cross beam is located above the lower cross beam, and the upper cross beam and the lower cross beam are parallel to each other, the adjusting channel 104 is arranged on the lower cross beam, the through hole is arranged on the upper cross beam, the stud 105 passes through the through hole on the upper cross beam, and the stud 105 is fixed in the adjusting channel 104, different spacings between the upper cross beam and the lower cross beam can be preset according to the requirement of the water sample depth, and the spacings between the upper cross beam and the lower cross beam are different, so that the position of the stud 105 in the adjusting channel 104 has different ranges of movement.
[0033] In some embodiments, the water inlet 101 is further provided with a bottom cover 201, the bottom cover 201 is provided with the same opening as the water inlet 101, and a step is arranged around the opening, and the edge of the floating plate 2 abuts against the step.
[0034] In implementation, the bottom cover 201 is arranged on the water inlet 101, the step is arranged around the opening of the bottom cover 201, and the edge of the floating plate 2 abuts against the step, the sealing property between the floating plate 2 and the bottom cover 201 is improved by arranging the step on the bottom cover 201, and the sealing property of the bottle body 1 before entering water is ensured.
[0035] In some embodiments, the edge of the floating plate 2 is provided with a sealing member 202, and the sealing member 202 abuts against the step.
[0036] In implementation, the sealing member 202 is arranged around the edge of the floating plate 2, when the floating plate 2 is pressed against the bottom cover 201 by the spring 102, the sealing member 202 of the edge of the floating plate 2 abuts against the step, the sealing property between the floating plate 2 and the bottom cover 201 is further improved, and the sealing property before entering water or before reaching the water area of the predetermined depth is ensured.
[0037] Further, the sealing member 202 is a sealing rubber ring or a sealing plastic ring.
[0038] In some embodiments, the bottom cover 201 is provided with a telescopic stand 203, and the telescopic stand 203 is connected with the floating plate 2.
[0039] In implementation, the telescopic column 203 is arranged on the bottom cover 201, and the floating plate 2 is connected with the telescopic column 203. The telescopic column 203 is arranged to pull the floating plate 2 when the floating plate 2 is washed away by water, so as to avoid the position deviation of the floating plate 2 after being washed away by water flow. The telescopic column 203 ensures the stability of the floating plate 2 after being washed away.
[0040] Further, the bottom cover 201 is provided with a plurality of telescopic columns 203, and the plurality of telescopic columns 203 are connected with the floating plate 2 to further ensure the stability of the plate-shaped stand plate.
[0041] In some embodiments, the bottle mouth at the top of the bottle body 1 is provided with a detachable cover plate 106.
[0042] In implementation, the bottle body 1 has a bottle mouth at the top, and the cover plate 106 is arranged at the bottle mouth. The cover plate 106 can ensure the sealing property of the bottle mouth. Since the cover plate 106 is detachable, the cover plate 106 can be removed after sampling, and then the water sample in the bottle body 1 can be poured out from the bottle mouth.
[0043] Further, the cover plate 106 and the bottle mouth can be threadedly connected or buckled.
[0044] In some embodiments, the bottle body 1 is provided with a handle 107.
[0045] In implementation, the handle 107 is arranged on the bottle body 1 to facilitate the carrying of the bottle body 1 and improve the portability in use.
[0046] In some embodiments, the side wall of the bottle body 1 comprises an inner wall 108 and an outer wall 109, and the inner wall 108 and the outer wall 109 have a gap 110 therebetween.
[0047] In implementation, the bottle body 1 is provided with the inner wall 108 and the outer wall 109, and the inner wall 108 and the outer wall 109 have the gap 110 therebetween. A weight can be added in the gap 110 during sampling, so as to ensure that the bottle body 1 can sink stably.
[0048] In some embodiments, the floating plate 2 is provided with a spring 102 connector at the top, and the spring 102 connector is connected with the spring 102.
[0049] In implementation, the spring 102 connector is arranged on the floating plate 2 to ensure the stable connection between the spring 102 and the floating plate 2.
[0050] In some embodiments, the bottom of the bottle body 1 is further provided with a base 111.
[0051] In implementation, the base 111 is used to support the bottle body 1.
[0052] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.
Claims
1. A depth sampler, characterized by The utility model relates to a bottle with a floating plate and a spring, and belongs to the field of daily necessities. The bottle comprises: a bottle body provided with a water inlet at the bottom; 2. The depth sampler of claim 1, wherein, a floating plate located inside the bottle body, the floating plate being arranged at the water inlet, the inside of the bottle body being provided with a fixing member, the fixing member being provided with a spring, one end of the spring being connected to the floating plate, and the spring being in a pre-pressing state.
3. The depth sampler of claim 2, wherein, The fixing member is a crossbeam, the two ends of the crossbeam being fixed to the side walls inside the bottle body.
4. The depth finder of claim 1 wherein, An adjusting channel is arranged on the crossbeam, the adjusting channel being provided with an internal thread, a stud being arranged in the adjusting channel, the stud being threadedly connected to the adjusting channel, and one end of the spring being connected to the stud.
5. The depth finder of claim 4 wherein, A bottom cover is further arranged on the water inlet, the bottom cover being provided with an opening identical to the water inlet, a step being arranged around the opening, and the edge of the floating plate being in abutment with the step.
6. The depth finder of claim 4 wherein, A sealing member is arranged around the edge of the floating plate, the sealing member being in abutment with the step.
7. The depth finder of claim 1 wherein, An extendable stand is arranged on the bottom cover, the extendable stand being connected to the floating plate.
8. The depth finder of claim 1 wherein, A detachable cover plate is arranged on the top of the bottle.
9. The depth finder of claim 1 wherein, A handle is arranged on the bottle.
10. The depth sampler of claim 1, wherein, The side wall of the bottle comprises an inner wall and an outer wall, and a gap is formed between the inner wall and the outer wall. A spring connecting member is arranged on the top of the floating plate, the spring connecting member being connected to the spring.