Sampling detection device for paclobutrazol chlorination reaction
By designing a sampling and detection device for the chlorination reaction of paclobutrazol, the problems of gas interaction and impurity entry inside and outside the reaction vessel were solved, thereby reducing pollution and temperature changes and improving the convenience of sampling operations and reaction stability.
Patent Information
- Application Number
- CN202422960009.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The existing paclobutrazol chlorination reaction sampling device causes gas exchange between the inside and outside of the reactor when the reactor is opened, resulting in temperature changes and the entry of external impurities, which affects the reaction effect.
A sampling and detection device for paclobutrazol chlorination reaction was designed, including a connector, a sampling needle, a rubber sleeve, and a cover plate structure. By sealing the through hole, the device reduces the entry of external impurities and gases into the reaction vessel. The device adopts a collar and slot structure to achieve single-handed operation and adjust the sampling depth and needle diameter to reduce contamination and temperature changes.
It effectively reduces contamination from external impurities entering the reactor and temperature changes, improving the convenience of sampling operations and the stability of the reaction.
Smart Images
Figure CN223623906U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sampling and detection technology, specifically a sampling and detection device for paclobutrazol chlorination reaction. Background Technology
[0002] Paclobutrazol is a plant growth regulator that can delay plant growth, inhibit stem elongation, shorten internodes, promote tillering, increase plant stress resistance, and improve yield.
[0003] The chlorination reaction of paclobutrazol is an important step in its synthesis process. It usually refers to the reaction of pinacolone or other related compounds with chlorine gas during the synthesis of paclobutrazol to generate α-chloropinacolone or other chlorinated products. This step is the basis for subsequent condensation, reduction and other reactions. During the chlorination reaction, the reactants are placed in a reaction vessel, and chlorine gas is uniformly introduced under the corresponding temperature conditions. After the chlorine gas is introduced, the reaction is kept at a certain temperature for a period of time. After the reaction is completed, a sampling device is needed to take samples for testing to confirm the content and purity of the chlorinated products. However, the existing sampling device requires the reaction vessel to be opened when in use. After the reaction vessel is opened, the gases inside and outside the reaction vessel will interact, causing temperature changes inside the reaction vessel. At the same time, external impurities can easily enter the reactants through the opening, affecting the reaction.
[0004] Therefore, this utility model provides a sampling and detection device for paclobutrazol chlorination reaction. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A sampling and detection device for paclobutrazol chlorination reaction, comprising a connector and a sampling needle; a through hole is opened in the middle of the connector; a rubber sleeve is fixedly connected to the middle of the through hole; a first cover plate is rotatably connected to the bottom of the connector by a torsion spring; the first cover plate is located at the bottom end of the through hole; through the above structure, when sampling and detecting paclobutrazol chlorination reaction, the occurrence of external impurities entering the reaction vessel and causing contamination of the reactants can be reduced, and the occurrence of external gas entering the reaction vessel and causing large temperature changes inside the reaction vessel can be reduced, thereby reducing the impact on the paclobutrazol chlorination reaction.
[0007] Preferably, a collar is installed in the middle of the sampling needle; a pair of ear plates are fixedly connected to the middle of the collar; a pair of slots are opened in the middle of the connector; the slots are L-shaped; with the above structure, the operator can complete the sampling work with one hand, freeing one hand of the operator to handle other things at the same time, and improving the ease of use of the device.
[0008] Preferably, a plurality of extrusion plates are fixedly connected to the top of the collar; the thickness of the extrusion plates is gradually increased from bottom to top; a threaded sleeve is threadedly connected to the middle of the collar and the plurality of extrusion plates; a rubber gasket is fixedly connected to the inner side wall of the extrusion plates; with the above structure, the insertion depth of the sampling needle can be adjusted so that the sampling needle can adapt to different reactor depths and reactant depths, thereby improving the ease of use of the device.
[0009] Preferably, the sleeve has multiple grooves in the middle; the multiple grooves are evenly distributed on the inner sidewall of the sleeve; with the above structure, different diameter sampling targets can be used to sample and detect the reactants, and the occurrence of external impurities entering during sampling is reduced.
[0010] Preferably, a second cover plate is rotatably connected to the top of the connector; the diameter of the second cover plate is larger than the top diameter of the through hole; through the above structure, the occurrence of external impurities entering the reactor and causing contamination of the reactants can be further reduced.
[0011] Preferably, a rubber ring is fixed to the bottom of the connector; the rubber ring is located at the bottom end of the through hole; with the above structure, the leakage of internal reaction gas can be reduced when the substances in the reactor are reacting.
[0012] Preferably, the threaded sleeve has multiple protrusions fixed to its center; the multiple protrusions are evenly distributed in the center of the threaded sleeve; through the above structure, the friction between the threaded sleeve and the finger can be increased when the threaded sleeve is rotated, reducing the occurrence of slippage, thereby enabling the threaded sleeve to be rotated to a position where the extrusion plate is thicker, making the fixing of the collar more stable.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The sampling and detection device for paclobutrazol chlorination reaction described in this utility model, through the setting of connectors, through holes, rubber sleeves, first cover plates, and sampling needles, can reduce the occurrence of external impurities entering the reaction vessel and causing contamination of the reactants during the sampling and detection of paclobutrazol chlorination reaction, and at the same time reduce the occurrence of external gases entering the reaction vessel and causing large temperature changes inside the reaction vessel, thereby reducing the impact on the paclobutrazol chlorination reaction.
[0015] 2. The sampling and detection device for paclobutrazol chlorination reaction described in this utility model, through the design of the collar, ear plate, and slot, allows the operator to complete the sampling work with one hand, freeing up one hand to handle other tasks simultaneously, thus improving the ease of use of the device. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a structural schematic diagram of the connector in this utility model;
[0019] Figure 3 This is a schematic diagram of the sampling needle in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the middle ear plate of this utility model.
[0021] In the diagram: 1. Connector; 12. Through hole; 13. Rubber sleeve; 14. First cover plate; 15. Sampling needle; 2. Collar; 21. Ear plate; 22. Slot; 3. Extrusion plate; 31. Screw sleeve; 32. Rubber pad; 4. Groove; 5. Second cover plate; 6. Rubber ring; 7. Raised strip. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] like Figures 1 to 2 As shown in the figure, a sampling and detection device for paclobutrazol chlorination reaction according to an embodiment of the present invention includes a connector 1 and a sampling needle 15; a through hole 12 is provided in the middle of the connector 1; a rubber sleeve 13 is fixedly connected to the middle of the through hole 12; a first cover plate 14 is rotatably connected to the bottom of the connector 1 via a torsion spring; the first cover plate 14 is located at the bottom end of the through hole 12; during operation, the connector 1 is installed at the top sampling port of the paclobutrazol chlorination reaction vessel to replace the sealing element of the sampling port. The first cover plate 14 will seal the bottom end of the through hole 12 under the action of the torsion spring, making it difficult for the gas inside and outside the reaction vessel to exchange through the through hole 12. When sampling for paclobutrazol chlorination reaction is required, the sampling needle 15 is inserted through the through hole 12. When the sampling needle 15 enters the reactor, the middle part of the sampling needle 15 will squeeze the inner wall of the rubber sleeve 13, causing the inner wall of the rubber sleeve 13 to undergo elastic deformation. The bottom of the sampling needle 15 will push open the first cover plate 14 and extend into the reactor to take a sample. During this process, the sampling needle 15 and the rubber sleeve 13 are in continuous contact, making it difficult for external impurities and air to enter the reactor through the through hole 12. With the above structure, when sampling and detecting the paclobutrazol chlorination reaction, the occurrence of external impurities entering the reactor and causing contamination of the reactants can be reduced. At the same time, the occurrence of external gas entering the reactor and causing large temperature changes inside the reactor can be reduced, thereby reducing the impact on the paclobutrazol chlorination reaction.
[0024] like Figures 1 to 4As shown, a collar 2 is installed in the middle of the sampling needle 15; a pair of ear plates 21 are fixedly connected to the middle of the collar 2; a pair of slots 22 are opened in the middle of the connecting part 1; the slots 22 are L-shaped; during operation, after the sampling needle 15 is inserted into the reactor through the through hole 12, the pair of ear plates 21 fall into the inside of the slots 22, and then the sampling needle 15 is rotated to make the ear plates 21 enter the transverse channel of the L-shaped slots 22. Thus, when using the sampling needle 15 for extraction, it is not necessary to support and fix the syringe of the sampling needle 15. Only the needle rod needs to be pulled to complete the extraction of the reactants. Especially when the sampling needle 15 is long, the operator can complete the sampling work with one hand, freeing one hand to handle other things. Through the above structure, the operator can complete the sampling work with only one hand, freeing one hand to handle other things at the same time, improving the ease of use of the device.
[0025] like Figures 1 to 4 As shown, multiple extrusion plates 3 are fixedly connected to the top of the collar 2; the thickness of the extrusion plates 3 is gradually increased from thin to thick from bottom to top; a threaded sleeve 31 is threadedly connected to the middle of the collar 2 and the multiple extrusion plates 3; a rubber gasket 32 is fixedly connected to the inner wall of the extrusion plates 3; during operation, the height of the collar 2 can be adjusted according to the depth of the reactor and the depth of the reactants in the reactor, and then the threaded sleeve 31 is rotated to move the threaded sleeve 31 towards the thicker part of the multiple extrusion plates 3, and the multiple threaded sleeves 31 will squeeze towards the sampling needle 15 after being compressed. The pressure increases the friction between the multiple rubber pads 32 and the sampling needle 15, thereby fixing the collar 2 at a designated position in the middle of the sampling needle 15. This allows the insertion depth of the sampling needle 15 to be adjusted when sampling and testing the reactants inside the reactor, adapting the insertion depth of the sampling needle 15 to the depth of the reactants inside the reactor. Through the above structure, the insertion depth of the sampling needle 15 can be adjusted to adapt to different reactor depths and reactant depths, improving the ease of use of the device.
[0026] like Figures 1 to 2 As shown, the sleeve 13 has multiple grooves 4 in the middle; the multiple grooves 4 are evenly distributed on the inner sidewall of the sleeve 13; during operation, due to the setting of multiple grooves 4, the elastic deformation amplitude of the middle part of the sleeve 13 is increased, so that when sampling needles 15 of different diameters are inserted into the middle part of the sleeve 13, the middle part of the sleeve 13 can fit with the sampling needles 15 of different diameters. Through the above structure, sampling needles 15 of different diameters can be used to sample and detect reactants, and the occurrence of external impurities entering during sampling is reduced.
[0027] like Figures 1 to 2As shown, a second cover plate 5 is rotatably connected to the top of the connector 1; the diameter of the second cover plate 5 is larger than the top diameter of the through hole 12; during operation, when the substances inside the reactor are reacting, the second cover plate 5 is rotated to block the top of the through hole 12, thereby reducing the occurrence of external impurities falling on the rubber sleeve 13 and the first cover plate 14, thereby reducing the occurrence of external impurities entering the reactor with the sampling needle 15 during sampling. Through the above structure, the occurrence of external impurities entering the reactor and causing contamination of the reactants can be further reduced.
[0028] like Figures 1 to 2 As shown, a rubber ring 6 is fixed to the bottom of the connector 1; the rubber ring 6 is located at the bottom end of the through hole 12; during operation, when the first cover plate 14 rotates towards the bottom end of the through hole 12 under the action of the torsion spring, the first cover plate 14 will fit with the bottom end of the rubber ring 6, thereby reducing the gap between the through hole 12 and the first cover plate 14. Through the above structure, the leakage of internal reaction gas can be reduced when the substances in the reactor are reacting.
[0029] like Figure 4 As shown, a plurality of protrusions 7 are fixedly connected to the middle of the threaded sleeve 31; the plurality of protrusions 7 are evenly distributed in the middle of the threaded sleeve 31; through the above structure, the friction between the threaded sleeve 31 and the finger can be increased when the threaded sleeve 31 is rotated, reducing the occurrence of hand slippage, thereby enabling the threaded sleeve 31 to be rotated to a thicker position of the extrusion plate 3, making the fixing of the collar 2 more stable.
[0030] During operation, connector 1 is installed at the top sampling port of the paclobutrazol chlorination reactor to replace the sampling port seal. The first cover plate 14, under the action of a torsion spring, seals the bottom of the through hole 12, making it difficult for gases inside and outside the reactor to exchange through the through hole 12. When sampling for the paclobutrazol chlorination reaction is required, the sampling needle 15 is inserted into the reactor through the through hole 12. The middle of the sampling needle 15 compresses the inner wall of the rubber sleeve 13, causing elastic deformation of the inner wall. The bottom of the sampling needle 15 pushes open the first cover plate 14, allowing it to extend into the reactor for sampling. During this process, there is a gap between the sampling needle 15 and the rubber sleeve 13. The continuous fit prevents external impurities and air from entering the reactor through the through-hole 12. After inserting the sampling needle 15 into the reactor through the through-hole 12, a pair of ear plates 21 fall into the slot 22. Then, rotating the sampling needle 15 allows the ear plates 21 to enter the transverse channel of the L-shaped slot 22. Therefore, when using the sampling needle 15 for extraction, there is no need to support and fix the syringe of the sampling needle 15; simply pulling the needle rod is sufficient to extract the reactants. Especially when the sampling needle 15 is long, it allows the operator to complete the sampling work with one hand, freeing up one hand to handle other tasks. This can be adjusted according to the reactor's... The height of the adjusting collar 2 is adjusted according to the depth of the reactants in the reactor. Then, the screw sleeve 31 is rotated to move towards the thicker part of the multiple extrusion plates 3. After being compressed, the multiple screw sleeves 31 will be squeezed towards the sampling needle 15, increasing the friction between the multiple rubber pads 32 and the sampling needle 15. This fixes the collar 2 at the designated position in the middle of the sampling needle 15. Thus, when sampling and testing the reactants inside the reactor, the insertion depth of the sampling needle 15 can be adjusted to adapt to the depth of the reactants in the reactor. Due to the setting of multiple grooves 4, the elastic deformation amplitude of the middle part of the rubber sleeve 13 is increased, thereby... When sampling needles 15 of different diameters are inserted into the middle of the rubber sleeve 13, the middle of the rubber sleeve 13 can fit with the sampling needles 15 of different diameters. When the substances inside the reactor are reacting, the second cover plate 5 is rotated to block the top of the through hole 12, thereby reducing the occurrence of external impurities falling on the rubber sleeve 13 and the first cover plate 14. This reduces the occurrence of external impurities entering the reactor with the sampling needles 15 during sampling. When the first cover plate 14 rotates towards the bottom of the through hole 12 under the action of the torsion spring, the first cover plate 14 will fit with the bottom of the rubber ring 6, thereby reducing the gap between the through hole 12 and the first cover plate 14.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sampling and detection device for paclobutrazol chlorination reaction, comprising a connector (1) and a sampling needle (15); characterized in that: The connector (1) has a through hole (12) in the middle; a rubber sleeve (13) is fixed in the middle of the through hole (12); the bottom of the connector (1) is rotatably connected to a first cover plate (14) by a torsion spring; the first cover plate (14) is located at the bottom end of the through hole (12).
2. The sampling and detection device for paclobutrazol chlorination reaction according to claim 1, characterized in that: A collar (2) is installed in the middle of the sampling needle (15); a pair of ear plates (21) are fixed in the middle of the collar (2); a pair of slots (22) are provided in the middle of the connector (1); the slots (22) are L-shaped.
3. The sampling and detection device for paclobutrazol chlorination reaction according to claim 2, characterized in that: The top of the collar (2) is fixedly connected to a plurality of extrusion plates (3); the thickness of the extrusion plates (3) is gradually increased from thin to thick from bottom to top; the collar (2) and the plurality of extrusion plates (3) are threadedly connected to a threaded sleeve (31); the inner sidewall of the extrusion plates (3) is fixedly connected to a rubber pad (32).
4. The sampling and detection device for paclobutrazol chlorination reaction according to claim 1, characterized in that: The sleeve (13) has a plurality of grooves (4) in the middle; the plurality of grooves (4) are evenly distributed on the inner sidewall of the sleeve (13).
5. The sampling and detection device for paclobutrazol chlorination reaction according to claim 1, characterized in that: The top of the connector (1) is rotatably connected to a second cover plate (5); the diameter of the second cover plate (5) is larger than the top diameter of the through hole (12).
6. The sampling and detection device for paclobutrazol chlorination reaction according to claim 1, characterized in that: A rubber ring (6) is fixed to the bottom of the connector (1); the rubber ring (6) is located at the bottom end of the through hole (12).
7. The sampling and detection device for paclobutrazol chlorination reaction according to claim 3, characterized in that: The threaded sleeve (31) has a plurality of protrusions (7) fixedly connected to its middle part; the plurality of protrusions (7) are evenly distributed in the middle part of the threaded sleeve (31).