A water quality sample preservation device for environmental protection detection

Abstract

The utility model discloses a water quality sample storage device for environmental protection detection belongs to water quality sample storage technical field, including container frame and the container bottle of installation in container frame, be provided with a plurality of storage space in the container frame, and the bottom wall of storage space is provided with the mounting groove, and the container bottle is installed on mounting groove, the sidewall of storage space is provided with photoelectric liquid level sensor, and the sidewall of container bottle is provided with detection plane, the detection end of photoelectric liquid level sensor is towards detection plane. The photoelectric signal of photoelectric liquid level sensor passes through detection plane and enters into the container bottle, and the liquid level in the container bottle is detected, and the detection efficiency is improved, adopts non -contact detection, and conveniently takes out or replaces container bottle, and the operation is convenient, and detection plane can avoid the photoelectric signal loss caused by arc plane, and conveniently take container bottle.

Description

Technical Field

[0001] This utility model relates to the field of water quality sample preservation technology, specifically to a water quality sample preservation device for environmental protection testing. Background Technology

[0002] Wastewater sampling is a crucial part of environmental protection, and proper water sample preservation is essential for ensuring the accuracy of water sample testing data. Water samples are typically taken using pumps and stored in containers. Since these containers have a certain capacity, the volume of liquid inside needs to be measured during sampling. Currently, there are two testing methods: one calculates the pump's operating time and converts it to the delivery volume, but the presence of air during sampling can easily cause testing errors; the other method uses graduations on the container to identify the volume of the water sample.

[0003] Patent CN213414839U discloses a water sampling bottle pre-filled with preservative, with water sample volume markings and a water sample information label on the outer surface of the bottle. However, it requires manual identification of the liquid volume, resulting in low sampling efficiency. Utility Model Content

[0004] In view of the above-mentioned technical problems existing in the prior art, this utility model provides a water quality sample preservation device for environmental protection testing, which improves the detection efficiency of water quality sample volume.

[0005] This utility model discloses a water quality sample preservation device for environmental protection testing, including a container rack and a container bottle installed in the container rack. The container rack is provided with multiple storage spaces, and the bottom wall of the storage space is provided with an installation groove. The container bottle is installed in the installation groove. A photoelectric liquid level sensor is provided on the side wall of the storage space, and a detection plane is provided on the side wall of the container bottle. The detection end of the photoelectric liquid level sensor faces the detection plane.

[0006] Preferably, the photoelectric liquid level sensor is an infrared photoelectric liquid level sensor.

[0007] Preferably, the photoelectric liquid level sensor and its receiver are respectively arranged on opposite sides of the storage space;

[0008] Two detection planes are set opposite each other on the side wall of the container bottle.

[0009] Preferably, the infrared light emitted by the transmitter on the photoelectric liquid level sensor body enters the container bottle through one detection plane and then exits from another detection plane, where it is received by the receiver.

[0010] Preferably, the detection plane extends towards the bottom surface of the container bottle;

[0011] The mounting slot is provided with a positioning plane that mates with the detection plane.

[0012] Preferably, it also includes a second pump, a sampling head, a robotic arm, and a pressure block. The container rack is mounted on a base frame, and a support is mounted on the base frame. A robotic arm is mounted on the upper side of the support, and a pressure block is mounted at the end of the robotic arm. A positioning groove that mates with the container bottle is mounted on the lower end of the pressure block.

[0013] The pressure block is provided with a first pin and a second pin at intervals, and the lower ends of the first pin and the second pin are engaged with the rubber cap of the container bottle;

[0014] The input end of the second pump is connected to the sampling head, and the output end is connected to the first pin.

[0015] Preferably, the pressure block is pressed onto the rubber cap of the container bottle, and the first and second pins pierce the rubber cap and extend downwards. The first and second pins are respectively provided with channels, and the water sample enters the container bottle through the sampling head, the second pump and the first pin.

[0016] Preferably, the robotic arm includes a first linear module, a second linear module, and a longitudinal driver. The first linear module is mounted on a support, and the second linear module is mounted on the output end of the first linear module.

[0017] The longitudinal driver is installed at the output end of the second linear module;

[0018] The pressure block is installed at the output end of the longitudinal driver;

[0019] The output ends of the first linear module and the second linear module move horizontally and perpendicularly to each other.

[0020] Preferably, it also includes a control module, which is connected to the photoelectric liquid level sensor, the control end of the second pump, and the robotic arm.

[0021] Preferably, the container rack is provided with multiple partitions at intervals, which divide the space inside the container rack into multiple rows of storage spaces.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: the photoelectric signal of the photoelectric liquid level sensor enters the container bottle through the detection plane to detect the liquid level in the container bottle, thereby improving the detection efficiency; the non-contact detection method makes it convenient to remove or replace the container bottle, which is easy to operate; the detection plane can avoid the loss of photoelectric signal caused by the curved plane, and at the same time, it is convenient to pick up the container bottle. Attached Figure Description

[0023] Figure 1 This utility model relates to a water quality sample preservation device for environmental protection testing.

[0024] Figure 2 This is a schematic diagram of the robotic arm.

[0025] Figure 3 This is a schematic diagram showing the fit between the briquette and the container;

[0026] Figure 4 This is a schematic diagram of the container's structure;

[0027] Figure 5 This is a schematic diagram of a water sample preservation device.

[0028] The diagram shows: 1. Water sample preservation device; 11. Support; 12. Base frame;

[0029] 2. Container rack; 21. Container bottle; 211. Inspection plane; 22. Glue cap; 23. Mounting slot; 231. Positioning plane; 24. Partition; 27. Storage space;

[0030] 35. Second pump; 37. Sampling head;

[0031] 4. Control module; 41. Photoelectric liquid level sensor; 42. Receiver;

[0032] 5. Robotic arm; 51. First linear module; 52. Second linear module; 55. Longitudinal driver; 56. Pressure block; 561. Positioning slot; 57. First pin; 58. Second pin. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings:

[0035] The first embodiment provides a water quality sample preservation device 1 for environmental monitoring, such as... Figures 1-5 As shown, the device includes a container rack 2 and container bottles 21 installed within the container rack 2. The container rack 2 has multiple storage spaces 27, and the bottom wall of each storage space 27 has a mounting groove 23 on which the container bottles 21 are installed. A photoelectric liquid level sensor 41 is installed on the side wall of each storage space 27, and a detection plane 211 is installed on the side wall of each container bottle 21. The detection end of the photoelectric liquid level sensor 41 faces the detection plane 211.

[0036] The photoelectric signal of the photoelectric liquid level sensor 41 enters the container bottle 21 through the detection plane 211 to detect the liquid level in the container bottle 21, thereby improving the detection efficiency. The non-contact detection method makes it easy to remove or replace the container bottle 21 after the detection is completed, which is convenient for operation. The detection plane 211 can avoid the loss of photoelectric signal caused by the curved plane, and at the same time, it is convenient to pick up the container bottle 21.

[0037] Second embodiment, such as Figure 5 As shown, the photoelectric liquid level sensor 41 is an infrared photoelectric liquid level sensor. The photoelectric liquid level sensor 41 and its receiver 42 are respectively disposed on opposite sides of the storage space 27, and correspondingly, two detection planes 211 are disposed opposite each other on the side wall of the container bottle 21.

[0038] like Figure 4 The detection plane 211 extends towards the bottom surface of the container bottle 21; such as Figure 1 The mounting groove 23 is provided with a positioning plane 231 that cooperates with the detection plane 211, which facilitates the placement of the container bottle 21 in the mounting groove 23, realizes the mutual positioning of the photoelectric liquid level sensor 41 and the detection plane 211, and can fix the angle between the photoelectric signal of the photoelectric liquid level sensor 41 and the detection plane 211, reducing detection error.

[0039] Infrared light emitted by the transmitter on the photoelectric liquid level sensor 41 enters the container 21 through one detection plane 211 and exits from another detection plane 211, where it is received by the receiver 42. When the water sample level in the container rises and reaches the detection level, the infrared signal received by the receiver 42 changes, thus determining the liquid level. The detection level can be set according to the sampling volume and its corresponding liquid level. The sampling volume is typically 500ml-1L, but is not limited to this.

[0040] The structure of the transmitter and receiver 42 of the photoelectric liquid level sensor 41 is existing technology and commercially available products can be used. This utility model will not elaborate further.

[0041] The third embodiment, such as Figure 2 and Figure 3 It also includes a second pump 35, a sampling head 37, a robotic arm 5, and a pressure block 56. The container rack 2 is mounted on a base frame 12, and a support 11 is mounted on the base frame 12. The robotic arm 5 is mounted on the upper side of the support 11, and a pressure block 56 is mounted at the end of the robotic arm 5. The lower end of the pressure block 56 is provided with a positioning groove 561 that mates with the container bottle 21. A first pin 57 and a second pin 58 are spaced apart on the pressure block 56. The lower ends of the first pin 57 and the second pin 58 mate with the rubber cap 22 of the container bottle 21. The input end of the second pump 35 is connected to the sampling head 37, and the output end is connected to the first pin 57.

[0042] Specifically, the pressure block 56 presses against the rubber cap 22 of the container bottle 21, and the first pin 57 and the second pin 58 pierce the rubber cap 22 and extend downwards. The first pin 57 and the second pin 58 are respectively provided with channels, and the water sample enters the container bottle 21 through the sampling head 37, the second pump 35 and the first pin 57. The channel of the second pin 58 is used for pressure balance inside the container bottle 21.

[0043] The robotic arm 5 is existing technology and can be a commercially available product. In a specific embodiment, the robotic arm 5 includes a first linear module 51, a second linear module 52, and a longitudinal actuator 55. The first linear module 51 is mounted on the bracket 11, and the second linear module 52 is mounted on the output end of the first linear module 51. The longitudinal actuator 55 is mounted on the output end of the second linear module 52, and the pressure block 56 is mounted on the output end of the longitudinal actuator 55. The output ends of the first linear module 51 and the second linear module 52 move horizontally and perpendicularly to each other. The longitudinal actuator 55 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, but is not limited to these.

[0044] The fourth embodiment provides a control module 4, which is connected to the control terminals of the photoelectric liquid level sensor 41, the second pump 35, and the robotic arm 5. The control module 4 can be a PC or a circuit board based on an ARM or STM32 microprocessor, used to receive data and control the operation of the robotic arm 5 and the second pump 35. The control method is prior art and will not be described in detail in this utility model.

[0045] The fifth embodiment provides a container rack 2 with multiple storage spaces 27. Multiple partitions 24 are spaced apart on the container rack 2. The partitions 24 divide the space inside the container rack 2 into multiple rows of storage spaces 27. The partitions 24 can be conveniently installed with photoelectric liquid level sensors 41, which can detect the liquid level of multiple container bottles 21.

[0046] This invention uses a photoelectric liquid level sensor 41 to perform non-contact detection of the liquid level inside the container bottle 21, improving the accuracy and efficiency of the detection. It can also evaluate and correct the sampling volume based on the metering volume of the second pump 35 and the volume detected by the photoelectric liquid level sensor 41. To improve the detection accuracy of the photoelectric liquid level sensor 41, a detection plane 211 is provided on the side wall of the container bottle 21 to reduce reflected signals. The positioning plane 231 on the mounting groove 23 ensures that the detection plane 211 is aligned with the orientation of the photoelectric liquid level sensor 41, further improving detection accuracy.

[0047] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water quality sample preservation device for environmental protection detection, characterized in that, Includes a container rack (2) and container bottles (21) installed within the container rack (2). The container rack (2) is provided with multiple storage spaces (27), and the bottom wall of the storage space (27) is provided with an installation groove (23), and the container bottle (21) is installed on the installation groove (23); A photoelectric liquid level sensor (41) is provided on the side wall of the storage space (27), and a detection plane (211) is provided on the side wall of the container bottle (21); the detection end of the photoelectric liquid level sensor (41) faces the detection plane (211).

2. The water quality sample preservation device according to claim 1, characterized by, The photoelectric liquid level sensor (41) is an infrared photoelectric liquid level sensor.

3. The water quality sample preservation device of claim 2, wherein, The photoelectric liquid level sensor (41) and its receiver (42) are respectively disposed on opposite sides of the storage space (27); Two detection planes (211) are arranged opposite each other on the side wall of the container bottle (21).

4. The water quality sample preservation device of claim 3, wherein The infrared light emitted by the transmitter on the photoelectric liquid level sensor (41) enters the container bottle (21) through one detection plane (211) and then exits from another detection plane (211) and is received by the receiver (42).

5. The water quality sample preservation device of claim 1, wherein The detection plane (211) extends toward the bottom surface of the container bottle (21); The mounting slot (23) is provided with a positioning plane (231) that mates with the detection plane (211).

6. The water quality sample preservation device of claim 1, wherein It also includes a second pump (35), a sampling head (37), a robotic arm (5) and a pressure block (56). The container rack (2) is set on the base frame (12), and a support (11) is set on the base frame (12). A robotic arm (5) is set on the upper side of the support (11), and a pressure block (56) is set at the end of the robotic arm (5). A positioning groove (561) that cooperates with the container bottle (21) is set at the lower end of the pressure block (56). The pressure block (56) is provided with a first pin (57) and a second pin (58) spaced apart. The lower ends of the first pin (57) and the second pin (58) are engaged with the rubber cap (22) of the container bottle (21). The input end of the second pump (35) is connected to the sampling head (37), and the output end is connected to the first pin (57).

7. The water quality sample preservation device of claim 6, wherein The pressure block (56) is pressed onto the rubber cap (22) of the container bottle (21). The first needle (57) and the second needle (58) pierce the rubber cap (22) and extend downward. The first needle (57) and the second needle (58) are respectively provided with channels. The water sample enters the container bottle (21) through the sampling head (37), the second pump (35) and the first needle (57).

8. The water quality sample preservation device of claim 6, wherein The robotic arm (5) includes a first linear module (51), a second linear module (52) and a longitudinal driver (55). The first linear module (51) is mounted on a bracket (11), and the second linear module (52) is mounted on the output end of the first linear module (51). The longitudinal driver (55) is installed at the output end of the second linear module (52); The pressure block (56) is installed at the output end of the longitudinal driver (55); The output ends of the first linear module (51) and the second linear module (52) move horizontally and perpendicularly to each other.

9. The water quality sample preservation device of claim 6, wherein, Also include control module (4), control module (4) photoelectric liquid level sensor (41) and the control end of second pump (35) and mechanical arm (5) are connected respectively.

10. The water quality sample preservation device of claim 1, wherein A plurality of partitions (24) are arranged on the container rack (2) at intervals, and the partitions (24) separate the space in the container rack (2) into a plurality of rows of storage spaces (27).

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