An environmental sewage sampling and preserving device
Patent Information
- Application Number
- CN202522545171.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-01
AI Technical Summary
Existing environmental wastewater sampling and preservation devices are prone to leaks or spills during long-term use, which can affect the stability and authenticity of the samples and increase the cost of equipment replacement.
The sampling and preservation device, which consists of components such as a cross shaft, connecting frame, storage rack, movable block, and elastic element, uses the cross shaft to achieve a small range of deflection of the storage rack and the elastic element to buffer the sample bottle during transportation, ensuring the stability and sealing of the sample bottle.
This effectively reduces sewage leakage and pollution caused by shaking of the sampling bottles during transportation, improves the stability and sealing of the sampling bottles, and reduces equipment replacement costs.
Smart Images
Figure CN224929478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater sampling technology, and in particular to an environmental wastewater sampling and preservation device. Background Technology
[0002] In today's society, with the acceleration of industrialization and the continuous expansion of urban scale, the monitoring and treatment of environmental wastewater has become increasingly important. As a key tool, environmental wastewater sampling and preservation devices are widely used in various water pollution monitoring scenarios, from natural water bodies such as rivers and lakes to industrial wastewater discharge outlets and urban sewage treatment facilities.
[0003] However, existing environmental wastewater sampling and preservation devices have some significant drawbacks in practical use. Wastewater sampling bottles are typically made of materials such as polyethylene, polypropylene, or hard glass. While these materials possess a certain degree of corrosion resistance, problems can easily arise at the joint between the bottle cap and the bottle body during long-term use. For example, threads may wear down after repeated use, and the sealing gaskets may age faster due to prolonged exposure to the wastewater environment. Once these problems occur, or if the cap is not properly tightened after sampling, wastewater can easily leak from the container during transportation, especially if the container is bumpy or handled carelessly. Furthermore, some wide-mouthed containers, due to their structural characteristics, have weaker sealing performance than narrow-mouthed containers, increasing the risk of wastewater spillage when tilted. Once wastewater leaks or spills from the container, it not only contaminates the sampling and preservation device used to hold the sampling bottle, significantly reducing the device's lifespan and increasing replacement costs, but it can also lead to sample interference, reducing the accuracy of the wastewater sample.
[0004] In conclusion, there is an urgent need to develop a new type of environmental wastewater sampling and preservation device that can effectively solve problems such as leakage and spillage of sampling bottles, so as to ensure the stability and authenticity of wastewater samples during transportation. Utility Model Content
[0005] The present invention aims to provide an environmental wastewater sampling and preservation device to overcome the shortcomings mentioned above.
[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:
[0007] An environmental wastewater sampling and preservation device, comprising:
[0008] A storage cylinder, wherein the inner sidewall of the storage cylinder is provided with two blind grooves with openings at the top, the blind grooves extending in a vertical direction; and
[0009] The cross shaft, connecting frame, and storage rack are located inside the storage cylinder. One pair of shaft diameters are movably connected to the two blind slots, and the other pair of shaft diameters are rotatably connected to the upper end of the connecting frame. The lower end of the connecting frame is fixedly connected to the storage rack. The storage rack is clearance-fitted with the storage cylinder. Several sampling slots are distributed in a circumferential array on the storage rack. The sampling slots are used to accommodate sampling bottles.
[0010] Furthermore, it also includes two movable blocks, one end of which is movably connected to the blind groove, and the two ends of one pair of shaft diameters of the cross shaft are respectively movably connected to the other ends of the two movable blocks.
[0011] Furthermore, it also includes:
[0012] A fixing block located below the movable block and fixedly connected to the inner wall of the storage cylinder; and
[0013] An elastic element used to move the movable block away from the fixed block.
[0014] Furthermore, the elastic element includes:
[0015] A sliding rod is installed vertically and movably passes through the movable block, with the lower end of the sliding rod abutting against the fixed block;
[0016] Two limiting rings are fixedly connected to the upper and lower ends of the sliding rod, respectively. The upper limiting ring is located above the movable block, and the lower limiting ring is located between the movable block and the fixed block; and
[0017] A compression spring is located between the movable block and the fixed block and is sleeved around the sliding rod. The upper end of the compression spring is connected to the movable block, and the lower end of the compression spring abuts against the limiting ring below.
[0018] Furthermore, the connecting frame is H-shaped, with its upper two ends rotatably connected to the two ends of one pair of shaft diameters of the cross shaft, and its lower two ends fixedly connected to the storage rack.
[0019] Furthermore, the movable block has a cuboid structure, and the blind slot is a rectangular slot adapted to the movable block.
[0020] Furthermore, a limiting cylinder with an upward-facing opening is fixedly connected to the bottom of the inner cylinder of the storage cylinder, and the upper end of a limiting rod is fixedly connected to the lower end of the storage rack. The lower end of the limiting rod is inserted into the limiting cylinder, and the lower end of the limiting rod selectively abuts against the inner sidewall of the limiting cylinder.
[0021] Furthermore, a buffer pad is fixedly sleeved on the lower outer wall of the limiting rod.
[0022] Furthermore, a sealing cap is provided at the top of the sampling tank, and a lower pressure pad is fixedly connected to the lower surface of the sealing cap. The lower pressure pad is interference-fitted with the upper edge of the sampling tank and is used to abut against the sampling bottle.
[0023] Furthermore, a lid is hinged to the storage cylinder, and multiple handles are provided on the outer side wall of the storage cylinder.
[0024] Compared with the prior art, this utility model has at least the following advantages:
[0025] This invention, by setting a cross axis, enables the storage rack to deflect in multiple directions within a small range inside the storage cylinder. This helps to address the slight tilting of the storage cylinder during transportation, allowing the storage rack to remain stationary. This effectively reduces leakage and contamination of wastewater samples caused by shaking of the sampling bottles during sample transportation, and improves the stability of the sampling bottles during transportation.
[0026] This invention incorporates an elastic element to cushion the storage rack when it wobbles up and down, preventing the sampling bottles from breaking or leaking due to severe vibration. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of the environmental wastewater sampling and preservation device of this utility model;
[0029] Figure 2 This is a cross-sectional view of the environmental wastewater sampling and preservation device of this utility model;
[0030] Figure 3 This is an assembly diagram of the components of this utility model, including the cross shaft, connecting frame, storage rack, and sampling bottle.
[0031] Reference numerals in the attached diagram: 1. Storage cylinder; 2. Blind groove; 3. Cross shaft; 4. Connecting frame; 5. Storage rack; 6. Sampling trough; 7. Sampling bottle; 8. Movable block; 9. Fixed block; 10. Sliding rod; 11. Limiting ring; 12. Compression spring; 13. Limiting cylinder; 14. Limiting rod; 15. Buffer pad; 16. Sealing cap; 17. Lower pressure pad; 18. Cylinder cap; 19. Handle. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0034] Reference Figure 1-3 This utility model discloses an environmental wastewater sampling and preservation device, which can effectively reduce the leakage and contamination of wastewater samples caused by shaking of the sampling bottle 7 during sample transportation, and improve the stability of the sampling bottle 7 during transportation.
[0035] The device mainly includes key components such as storage cylinder 1, cross shaft 3, connecting frame 4, storage rack 5, movable block 8, fixed block 9, and elastic element.
[0036] This device uses the storage cylinder 1 as its core supporting component, internally integrating functional components such as the cross shaft 3, connecting frame 4, storage rack 5, movable block 8, fixed block 9, and elastic element. Externally, it is equipped with a cylinder cap 18 and a handle 19, forming a complete sampling and storage system. The components work together to ensure the stable fixation of the sampling bottle 7, while also providing ease of operation and transportation safety. The specific structure and connection method of each component are described in detail below.
[0037] The storage cylinder 1, serving as the main support structure of the device, is made of corrosion-resistant hard plastic or stainless steel. Its inner wall is machined with two blind grooves 2, each with an opening at the top. These grooves extend vertically and have a rectangular cross-section, providing a track for the subsequent movable block 8 to be installed and moved. To improve the stability and smoothness of the movable block 8's connection, the inner wall of the blind grooves 2 is smoothed, reducing frictional resistance during the movement of subsequent mating components. A cylinder cover 18 is hinged to one end of the top edge of the storage cylinder 1, and the other end is detachably connected to the cover 18 via a snap-fit connection (not shown in the figure). This facilitates the opening and closing of the cover 18, and the snap-fit connection ensures the sealing of the storage cylinder 1 when closed.
[0038] The device is equipped with two identical movable blocks 8. The movable blocks 8 have a cuboid structure, and their dimensions are adapted to the dimensions of the blind groove 2, allowing one end of the movable block 8 to fit precisely into the blind groove 2 and slide vertically along the groove. The other end of the movable block 8 has a connecting hole for connecting with one pair of shaft diameters of the cross shaft 3. Directly below each movable block 8, a fixing block 9 is fixedly connected to the inner wall of the storage cylinder 1. The fixing block 9 is made of the same material as the storage cylinder 1 and is fixed by welding or bolting. Its function is to provide an installation reference and support for the elastic element.
[0039] The elastic element is used to move the movable block 8 and the fixed block 9 away from each other, achieving elastic support and buffering for the storage rack 5. Its specific structure includes a sliding rod 10, limiting rings 11, and a compression spring 12. The sliding rod 10 is arranged vertically, its body moving through a through hole in the movable block 8. The lower end of the sliding rod 10 is in close contact with the upper surface of the fixed block 9, ensuring the stability of the overall structure. Two limiting rings 11 are welded to the upper and lower ends of the sliding rod 10, respectively. The upper limiting ring 11 is located above the movable block 8, and the lower limiting ring 11 is located between the movable block 8 and the fixed block 9, serving to support the compression spring 12. Compression spring 12 is sleeved around the sliding rod 10. Its upper end is connected to the lower surface of the movable block 8 by welding or snap-fitting, and its lower end abuts against the upper surface of the limiting ring 11 below. In its natural state, compression spring 12 is in a slightly compressed state, providing continuous upward elastic force to the movable block 8, so that the movable block 8 always has a tendency to move away from the fixed block 9. Compression spring 12 is set to ensure that the movable block 8 achieves a buffering effect when it moves downward, thereby reducing the disturbance to the storage rack 5 caused by transportation bumps.
[0040] The cross shaft 3 consists of two mutually perpendicular and fixedly connected shafts, forming a cross-shaped structure. One pair of opposing shaft diameters (i.e., the two ends of one shaft) are connected one-to-one with the connecting holes of the two movable blocks 8 via pins. This connection method allows the cross shaft 3 to rotate around the pins at a certain angle and also allows it to move up and down synchronously with the movable blocks 8 along the blind groove 2. The other pair of opposing shaft diameters (i.e., the two ends of another shaft) are rotatably connected to the upper end of the "H"-shaped connecting frame 4. Specifically, this is achieved by opening shaft holes at the upper end of the connecting frame 4, with a clearance fit between the shaft diameter and the shaft hole, or by installing rolling bearings, allowing the connecting frame 4 to rotate flexibly around these shaft diameters, thereby adjusting the position of the storage rack 5 below. The lower end of the connecting frame 4 is fixedly connected to the storage rack 5 by welding or integral molding, ensuring a strong connection and preventing loosening during handling.
[0041] The storage rack 5 adopts a disc-shaped or columnar structure, with its outer diameter smaller than the inner diameter of the storage cylinder 1, forming a clearance fit to ensure that the storage rack 5 can move smoothly up and down or shift slightly within the storage cylinder 1. Several sampling slots 6 are evenly distributed along the circumference on the upper surface of the storage rack 5. The number of sampling slots 6 can be set according to actual sampling needs, typically 4-8. The inner diameter of each sampling slot 6 is adapted to the outer diameter of the commonly used sampling bottle 7, stably accommodating the sampling bottle 7 and preventing it from tipping over during transportation.
[0042] To further enhance the stability of the storage rack 5, a limiting cylinder 13 with an upward-facing opening is welded to the bottom of the inner cylinder of the storage tube 1. The limiting cylinder 13 has a cylindrical structure. Correspondingly, a limiting rod 14 is fixedly connected to the center of the lower surface of the storage rack 5. The lower end of the limiting rod 14 is inserted into the limiting cylinder 13, with a certain gap maintained between its outer wall and the inner wall of the limiting cylinder 13. This allows the limiting rod 14 to move up and down synchronously with the storage rack 5. Simultaneously, when the storage rack 5 shakes, the lower end of the limiting rod 14 can selectively abut against the inner wall of the limiting cylinder 13, thus limiting the amplitude of the shaking. A buffer pad 15, made of elastic rubber, is fixedly fitted onto the outer wall of the lower end of the limiting rod 14. This buffer pad 15 provides cushioning and shock absorption when the limiting rod 14 contacts the limiting cylinder 13, preventing damage to the components from rigid collisions.
[0043] Each sampling chamber 6 is equipped with a sealing cap 16 at its top, which is connected to the sampling chamber 6 by a threaded or snap-fit connection. A pressure pad 17, also made of elastic rubber, is adhered to the lower surface of the sealing cap 16. Its outer diameter is slightly larger than the inner diameter of the sampling chamber 6, forming an interference fit with the upper edge of the sampling chamber 6. When the sealing cap 16 is closed, the pressure pad 17 tightly abuts against the mouth of the sampling bottle 7, thus securing the sampling bottle 7, preventing it from moving up and down, and providing a good seal to prevent leakage or external contamination of the wastewater sample.
[0044] A cover 18 is hinged to one side of the opening of the storage cylinder 1. The size of the cover 18 is adapted to the opening of the storage cylinder 1, and when closed, it can form a sealed protection for the inside of the storage cylinder 1, preventing dust and impurities from entering. Multiple handles 19 are fixedly installed on the outer wall of the storage cylinder 1. The handles 19 are usually made of metal or high-strength plastic and are fastened to the side wall of the storage cylinder 1 with bolts. It is preferable to set two symmetrically distributed handles 19 to facilitate the operator to carry the device with both hands, thereby improving the stability and convenience of the handling process.
[0045] Working principle of this utility model:
[0046] The working process and principle of this environmental wastewater sampling and preservation device are mainly divided into three stages: sampling loading, elastic buffering, and convenient retrieval and placement.
[0047] Sampling and loading stage: The operator first opens the cover 18 of the storage cylinder 1. Since the connecting frame 4 can rotate around the diameter of the cross shaft 3, and the cross shaft 3 can slide up and down along the blind groove 2 via the movable block 8, the storage rack 5 can be removed from the storage cylinder 1 by lifting the cross shaft 3. Then, the sampling bottles 7 containing sewage samples are placed one by one into the sampling slots 6 of the storage rack 5. Each sampling slot 6 corresponds to one sampling bottle 7. After placement, the sealing cover 16 of the sampling slot 6 is closed. The lower pressure pad 17 under the sealing cover 16 tightly abuts against the sampling bottle 7 through an interference fit, thereby fixing and sealing the sampling bottle 7. Finally, the movable block 8 is aligned with the two blind grooves 2 to install the storage rack 5, and the cover 18 of the storage cylinder 1 is closed and fixed by a snap-fit connection.
[0048] Elastic Buffering Stage: During device handling or transportation, if vibration or bumps occur, the storage rack 5 will sway up and down or left and right. When the storage rack 5 moves downward, it will drive the movable block 8 to slide downward along the blind groove 2 through the connecting frame 4 and the cross shaft 3. During the downward movement of the movable block 8, it will compress the compression spring 12 sleeved on the sliding rod 10. The elastic deformation of the compression spring 12 will generate a reverse elastic force, which will offset part of the impact force and play a buffering role, preventing the sampling bottle 7 from being damaged or leaking due to severe vibration. When small left and right swaying occurs, the storage rack 5 can maintain its original state under the action of the cross shaft 3, reducing the shaking of the sewage. At the same time, the limiting rod 14 below the storage rack 5 will move synchronously inside the limiting cylinder 13. When the left and right swaying amplitude is large, the buffer pad 15 at the lower end of the limiting rod 14 will contact the inner wall of the limiting cylinder 13, further limiting the swaying amplitude and reducing the impact between the storage rack 5 and the inner wall of the storage cylinder 1.
[0049] Convenient retrieval and placement stage: When it is necessary to remove the sampling bottle 7 for testing, after opening the cylinder cap 18, the storage rack 5 can be removed from the storage cylinder 1 by lifting the cross shaft 3, and the corresponding sealing cap 16 can be removed to take out the sampling bottle.
[0050] This device achieves multi-dimensional adjustment of the storage rack 5 through the cooperation of the cross shaft 3 and the movable block 8. Combined with the elastic buffer structure and the limiting structure, it not only ensures the convenience of the sampling process, but also improves the stability of the sample during transportation, effectively meeting the usage requirements of environmental sewage sampling and preservation.
[0051] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0052] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. An environmental wastewater sampling and preservation device, characterized in that, include: A storage cylinder (1) has two blind grooves (2) with openings at the top on its inner sidewall, and the blind grooves (2) extend in the vertical direction. as well as The cross shaft (3), connecting frame (4) and storage rack (5) are located inside the storage cylinder (1). The two ends of one pair of shaft diameters are movably connected to the two blind slots (2) respectively, and the two ends of the other pair of shaft diameters are rotatably connected to the upper end of the connecting frame (4). The lower end of the connecting frame (4) is fixedly connected to the storage rack (5). The storage rack (5) is clearance-fitted with the storage cylinder (1). Several sampling slots (6) are distributed in a circumferential array on the storage rack (5). The sampling slots (6) are used to accommodate sampling bottles (7).
2. The environmental wastewater sampling and preservation device according to claim 1, characterized in that, It also includes two movable blocks (8), one end of each movable block (8) is movably connected to the blind groove (2), and the two ends of one pair of shaft diameters of the cross shaft (3) are respectively movably connected to the other ends of the two movable blocks (8).
3. The environmental wastewater sampling and preservation device according to claim 2, characterized in that, Also includes: A fixed block (9) is located below the movable block (8) and is fixedly connected to the inner wall of the storage cylinder (1); as well as An elastic element used to move the movable block (8) and the fixed block (9) away from each other.
4. The environmental wastewater sampling and preservation device according to claim 3, characterized in that, The elastic element includes: A sliding rod (10) is set vertically and movably passes through the movable block (8), with the lower end of the sliding rod (10) abutting against the fixed block (9); Two limiting rings (11) are fixedly connected to the upper and lower ends of the sliding rod (10), respectively. The upper limiting ring (11) is located above the movable block (8), and the lower limiting ring (11) is located between the movable block (8) and the fixed block (9); and A compression spring (12) is located between the movable block (8) and the fixed block (9) and is sleeved around the sliding rod (10). The upper end of the compression spring (12) is connected to the movable block (8), and the lower end of the compression spring (12) abuts against the limiting ring (11) below.
5. The environmental wastewater sampling and preservation device according to claim 4, characterized in that, The connecting frame (4) is "H" shaped. The two upper ends of the connecting frame (4) are rotatably connected to the two ends of one pair of shaft diameters of the cross shaft (3). The two lower ends of the connecting frame (4) are fixedly connected to the storage rack (5).
6. The environmental wastewater sampling and preservation device according to any one of claims 2 to 5, characterized in that, The movable block (8) has a cuboid structure, and the blind slot (2) is a rectangular slot that is adapted to the movable block (8).
7. The environmental wastewater sampling and preservation device according to claim 6, characterized in that, The bottom of the inner cylinder of the storage cylinder (1) is fixedly connected to a limiting cylinder (13) with an upward opening. The lower end of the storage rack (5) is fixedly connected to the upper end of a limiting rod (14). The lower end of the limiting rod (14) is inserted into the limiting cylinder (13), and the lower end of the limiting rod (14) selectively abuts against the inner wall of the limiting cylinder (13).
8. The environmental wastewater sampling and preservation device according to claim 7, characterized in that, A buffer pad (15) is fixedly sleeved on the lower outer wall of the limiting rod (14).
9. The environmental wastewater sampling and preservation device according to claim 8, characterized in that, The top of the sampling groove (6) is provided with a sealing cover (16), and a lower pressure pad (17) is fixedly connected to the lower surface of the sealing cover (16). The lower pressure pad (17) is interference-fitted with the upper edge of the sampling groove (6) and is used to abut against the sampling bottle (7).
10. The environmental wastewater sampling and preservation device according to claim 9, characterized in that, The storage tube (1) is hinged with a cap (18), and the outer side wall of the storage tube (1) is provided with multiple handles (19).