Dangerous chemical sampling device
By designing an automated chemical sampling device, using mechanical structures and isolation fluids, the safety hazards in the chemical sampling process in the prior art are solved, and the effects of automated sampling and safety protection are achieved.
Patent Information
- Application Number
- CN202421908413.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-08
AI Technical Summary
During the sampling process, existing chemical sampling devices are prone to dangerous chemicals falling on their hands due to hand shaking, which poses a major safety hazard.
A dangerous chemical sampling device is designed to automatically place the sampling bottle and sample it through the mechanical structure of the circular plate and spring to avoid manual direct contact, combined with the use of screw caps and insulation liquid to prevent chemical leakage.
An automated chemical sampling process is realized, which avoids the spilling of chemicals caused by hand shaking, eliminates safety hazards, and prevents leakage through isolation fluid, improving safety.
Smart Images
Figure CN223037488U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sampling device, in particular to a sampling device for hazardous chemicals. Background Art
[0002] Chemicals refer to pure substances and mixtures composed of various elements, whether natural or artificial. The definition of chemicals is very broad, including from basic chemical elements to complex compounds. Chemical sampling is a key link to ensure the quality control and safety monitoring of chemical products. According to different chemical properties and sampling environments, corresponding sampling methods and safety protection measures need to be taken.
[0003] However, currently, when sampling chemicals, it is necessary to hold the sampling bottle by hand. When the hand shakes, the hazardous chemicals may fall on the hand. Since the chemicals are corrosive, it will cause certain harm to the hand skin and there are relatively large potential safety hazards.
[0004] Therefore, it is necessary to design a sampling device for hazardous chemicals to solve the above technical problems. Summary of the Utility Model
[0005] In order to overcome the disadvantages that the device used for sampling chemicals at present cannot cope with the situation that when sampling hazardous chemicals, it is necessary to hold the sampling bottle by hand. When the hand shakes, the hazardous chemicals may fall on the hand. Since the chemicals are corrosive, it will cause certain harm to the hand skin and there are relatively large potential safety hazards. The purpose of the utility model is to provide a sampling device for hazardous chemicals.
[0006] Technical Solution: A sampling device for hazardous chemicals includes a connecting pipe, a connecting rod, a circular plate, a fixing ring, a fixing block, a spring, a hopper, a baffle, a sampling needle, a screw rod and a hand wheel. Both sides of the bottom of the connecting pipe are fixedly connected with connecting rods. A circular plate is slidably connected between the two connecting rods. A fixing ring is fixedly connected to the circular plate. Fixing blocks are fixedly connected to the bottoms of the two connecting rods. Springs are connected between the circular plate and the two fixing blocks. Both springs are wound around the corresponding connecting rods. The bottom of the connecting pipe is connected and communicated with a hopper. The bottom of the hopper is connected and communicated with a sampling needle. A screw rod is threadedly connected inside the connecting pipe. The bottom of the screw rod is rotatably connected with a baffle, and the baffle abuts against the hopper. A hand wheel is fixedly connected to the screw rod.
[0007] As an improvement of the above solution, it further includes an isolation ring and a screw cap. Isolation rings are fixedly sleeved on both sides of the connecting pipe. Screw caps are slidably placed on the two isolation rings.
[0008] As an improvement of the above solution, it further includes a detection head and a gas detector. A detection head is fixedly connected to the upper part of the connecting pipe. The right side of the detection head passes through the connecting pipe and is fixedly connected with a gas detector.
[0009] As an improvement of the above solution, the connecting tube is provided with two upper and lower cavities, and the detection head is located inside the connecting tube, and the screw rod passes through the two cavities of the connecting tube.
[0010] As an improvement of the above solution, the lower hopper structure is funnel-shaped.
[0011] As an improvement of the above solution, the sampling needle is made of plastic.
[0012] 1. The utility model moves the round plate to drive the fixed ring to move, then puts the sampling bottle into the fixed ring, and inserts the sampling needle into the wooden stopper on the sampling bottle. The hand is released, and the round plate is reset to its original position by the spring. The hand wheel is turned to rotate the screw, and the baffle moves away from the lower hopper. The chemicals in the connecting pipe are no longer blocked and flow down along the inner wall of the lower hopper. The chemicals flow into the sampling bottle along the sampling needle, thereby replacing manual sampling with a sampling bottle, avoiding the phenomenon of dangerous chemicals spilling when the hands are shaken, and eliminating the occurrence of safety hazards.
[0013] 2. The utility model opens the screw cap clockwise and pours an isolating liquid into the cap, so that the isolating liquid forms a water wall at the pipe connection, thereby preventing the leakage of dangerous chemicals. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of the baffle, sampling needle, screw and other components of the utility model.
[0016] Figure 3 It is a schematic diagram of the structure of the lower hopper, isolation ring, screw cover and other components of the utility model.
[0017] Figure 4 The figure is a schematic diagram of the structure of the connecting pipe, the detection head and the gas detector of the utility model. The reference numbers in the figure are: 1, connecting pipe, 2, connecting rod, 3, round plate, 4, fixing ring, 5, fixing block, 6, spring, 7, lower hopper, 8, baffle, 9, sampling needle, 10, screw rod, 11, hand wheel, 12, isolation ring, 13, screw cap, 14, detection head, 15, gas detector. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] Example: A sampling device for hazardous chemicals, as Figures 1 - 4 shown, includes a connecting pipe 1, a connecting rod 2, a circular plate 3, a fixing ring 4, a fixing block 5, a spring 6, a hopper 7, a baffle 8, a sampling needle 9, a screw rod 10, a handwheel 11, a separating ring 12, a screw cap 13, a detection head 14 and a gas detector 15. The connecting pipe 1 is provided with two cavities, upper and lower, and the detection head 14 is located on the right side inside the connecting pipe 1. The screw rod 10 passes through the two cavities of the connecting pipe 1. Both the left and right sides of the bottom of the connecting pipe 1 are installed with connecting rods 2 by screws. A circular plate 3 is slidably connected between the two connecting rods 2. A fixing ring 4 is installed on the top of the circular plate 3 by screws. Fixing blocks 5 are installed at the bottoms of the two connecting rods 2 by screws. Springs 6 are connected between the circular plate 3 and the two fixing blocks 5. Both springs 6 are wound around the corresponding connecting rods 2. The bottom of the connecting pipe 1 is connected and communicated with a hopper 7. The structure of the hopper 7 is funnel-shaped. The bottom of the hopper 7 is connected and communicated with a sampling needle 9. The sampling needle 9 is made of plastic. A screw rod 10 is threadedly connected inside the connecting pipe 1. The bottom of the screw rod 10 is rotatably connected with a baffle 8, and the baffle 8 abuts against the hopper 7. The top of the screw rod 10 is connected to a handwheel 11 by welding. Separating rings 12 are installed on both the left and right sides of the connecting pipe 1 by screws. Screw caps 13 are slidably placed on the tops of the two separating rings 12. A detection head 14 is installed on the upper right side of the connecting pipe 1 by screws. The right side of the detection head 14 passes through the connecting pipe 1 and is installed with a gas detector 15 by screws.
[0020] When it is necessary to sample hazardous chemicals, the staff first install the device in the chemical delivery pipe, and then move the circular plate 3 downward. The circular plate 3 drives the fixed ring 4 to move downward. During the movement, the spring 6 is compressed and deformed. Then, the sampling bottle is placed into the fixed ring 4, and the sampling needle 9 is inserted into the cork on the sampling bottle. After releasing the hand, the circular plate 3 is reset upward to its original position by the spring 6. Rotate the handwheel 11 clockwise upward. The handwheel 11 makes the screw 10 rotate clockwise, so that the baffle 8 moves upward and disengages from the hopper 7. The chemicals in the connecting pipe 1 are no longer blocked and flow down along the inner wall of the hopper 7. The chemicals flow into the sampling bottle along the sampling needle 9. When the sampling bottle is almost full of chemicals, rotate the handwheel 11 counterclockwise. The handwheel 11 drives the screw 10 to rotate counterclockwise, so that the baffle 8 moves downward. The baffle 8 contacts the hopper 7 and continues to block the chemicals. After the sampling bottle is full of chemicals, move the circular plate 3 downward. The circular plate 3 drives the fixed ring 4 to move downward. During the movement, the spring 6 is compressed and deformed. Take out the sampling bottle and release the hand. The circular plate 3 is reset upward to its original position by the spring 6. If it needs to be used multiple times, repeat the above operations. To prevent the leakage of hazardous chemicals at the pipe connection of the connecting pipe 1, the staff can open the screw cap 13 clockwise and pour the isolation liquid into it. The isolation liquid forms a water wall at the pipe connection to block the leakage of hazardous chemicals. After the water wall is formed, the screw cap 13 can be closed counterclockwise. The staff can also observe the inside of the connecting pipe 1 at any time through the gas detector 15. If the chemicals leak, it can be detected in time and the staff can be reminded.
[0021] The above embodiments are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A hazardous chemical sampling device, characterized in that: The invention comprises a connecting tube (1), a connecting rod (2), a circular plate (3), a fixing ring (4), a fixing block (5), a spring (6), a lower hopper (7), a baffle (8), a sampling needle (9), a screw (10) and a hand wheel (11). The connecting tube (1) is fixedly connected to the connecting rods (2) on both sides of the bottom. The two connecting rods (2) are slidably connected to a circular plate (3). The fixing ring (4) is fixedly connected to the circular plate (3). The fixing blocks (5) are fixedly connected to the bottoms of the two connecting rods (2). A spring (6) is connected between the plate (3) and the two fixed blocks (5), and the two springs (6) are wound around the corresponding connecting rods (2). The bottom of the connecting pipe (1) is connected to and communicated with a lower hopper (7), and the bottom of the lower hopper (7) is connected to and communicated with a sampling needle (9). The connecting pipe (1) is internally threadedly connected to a screw rod (10), and the bottom of the screw rod (10) is rotatably connected to a baffle plate (8), and the baffle plate (8) is in contact with the lower hopper (7). A hand wheel (11) is fixedly connected to the screw rod (10).
2. A hazardous chemical sampling device as claimed in claim 1, characterized in that: It also comprises an isolating ring (12) and a rotary cover (13). The isolating ring (12) is fixedly sleeved on both sides of the connecting pipe (1), and the rotary cover (13) is slidably placed on the two isolating rings (12).
3. A hazardous chemical sampling device as claimed in claim 2, characterized in that: It also comprises a detection head (14) and a gas detector (15); the detection head (14) is fixedly connected to the upper part of the connecting tube (1); the right side of the detection head (14) passes through the connecting tube (1) and is fixedly connected to the gas detector (15).
4. A hazardous chemical sampling device as claimed in claim 3, characterized in that: Two upper and lower cavities are provided in the connecting tube (1), and the detection head (14) is located inside the connecting tube (1), and the screw rod (10) passes through the two cavities of the connecting tube (1).
5. A hazardous chemical sampling device as claimed in claim 4, characterized in that: The lower hopper (7) has a funnel-shaped structure.
6. A hazardous chemical sampling device as claimed in claim 5, characterized in that: The sampling needle (9) is made of plastic.