Feeding device for water-free and oxygen-free reaction

Abstract

The utility model relates to the technical field of water-free and oxygen-free reaction, and discloses a feeding device for water-free and oxygen-free reaction, which comprises a reaction container, a feeding hopper is arranged at the opening part of the reaction container, a placing cavity is arranged at the upper end of the feeding hopper, a material storage disc is arranged in the placing cavity in a close fit manner, a plurality of material storage cavities are arranged in the material storage disc, and the material storage cavities are communicated with the feeding hopper. A rotating shaft is slidably inserted into the storage disc, a control disc is fixedly installed at the bottom end of the rotating shaft, a feeding hole is formed in the surface of the control disc, the surface of the rotating shaft is sleeved with a pre-tightening spring upwards abutting against the rotating shaft, and a pressing ring is installed in an upper opening of the feeding hopper in a threaded mode. According to the device, the feeding hopper is mounted at the opening part of the reaction container, a plurality of material storage cavities are formed in the feeding hopper, different materials can be placed in the different material storage cavities, and when the rotary shaft is rotated to drive the control disc to rotate, the feeding hole is aligned with the material storage cavities, so that the different materials can be added into the reaction container at different reaction times; therefore, the effect of controlling feeding of various materials is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of anhydrous and oxygen-free reactions, in particular to a feeding device for anhydrous and oxygen-free reactions. Background Art

[0002] The application of anhydrous and oxygen-free reaction in modern organic synthesis reaction is increasingly widespread, such as the direct construction of unsaturated carbon-carbon bonds in the synthesis of small molecule compounds. Due to the participation of organometallic catalysts, most of them need to be carried out under anhydrous and oxygen-free conditions. In the prior art, the patent document with the announcement number CN212017732U discloses a feeding device for anhydrous and oxygen-free reaction, including a reaction bottle, a feeding container provided in the reaction bottle, the feeding container is connected to the reaction bottle by a magnetic attraction component, the magnetic attraction component includes a magnetic ring provided on the feeding container and a magnet located on the outer wall of the reaction bottle. The outer wall of the feeding container is provided with a groove, and the groove is provided with a magnetic ring. Under the guidance of the magnet, the feeding container with the magnetic ring is placed inside the reaction bottle, attached to the inner wall of the reaction bottle, above the reaction liquid level, the reaction bottle is sealed, and an anhydrous and oxygen-free environment is created to start the reaction. At the appropriate feeding time, the magnet outside the reaction bottle is rotated to invert the feeding container. The reaction raw materials can be added without opening the reaction bottle stopper, avoiding the destruction of the anhydrous and oxygen-free environment in the reaction bottle caused by opening the reaction bottle stopper and adding raw materials during the reaction process.

[0003] In actual use, the reactions of many compounds require the participation of multiple materials. During the reaction process, several different materials need to be added to an anhydrous and oxygen-free environment. Based on this, the existing feeding device has the problem of inconvenience in adding multiple materials into the reaction vessel, which needs further improvement. Utility Model Content

[0004] The purpose of the present invention is to provide a feeding device for anhydrous and oxygen-free reaction to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for anhydrous and oxygen-free reaction, comprising a reaction vessel, a feeding hopper being installed at the mouth of the reaction vessel, a placement cavity being provided at the upper end of the feeding hopper, and a storage tray being tightly installed in the placement cavity, a plurality of storage cavities being provided inside the storage tray, a rotating shaft being slidably inserted inside the storage tray, a control disk being fixedly installed at the bottom end of the rotating shaft, a feeding hole being provided on the surface of the control disk, and a preload spring being sleeved on the surface of the rotating shaft for pressing the rotating shaft upward;

[0006] A clamping ring is installed on the internal thread of the upper opening of the feeding hopper. The upper port of the storage chamber is covered by the clamping ring. The top of the rotating shaft passes through the inner ring hole of the clamping ring upward to feed a certain amount of material into the storage chamber at different positions. The control disk is rotated. When the feeding hole is aligned with the storage chamber, different materials can be put into the reaction container.

[0007] In some embodiments, the feeding hopper is composed of a connecting part, a guide part and a mounting part from bottom to top. The connecting part and the guide part form a funnel shape with a large upper opening and a small lower opening. The storage tray is installed in the mounting part, and materials in different storage cavities are input into the reaction container through the connecting part.

[0008] In some embodiments, a groove is provided at the bottom end of the storage tray, and a first sealing ring is fixedly installed in the groove, the first sealing ring is wrapped around the surface of the control tray, a first annular groove and a second annular groove are respectively provided inside the storage tray, a second sealing ring is provided in the first annular groove, a pre-tightening spring is provided in the second annular groove, a positioning ring is fixedly installed on the surface of the rotating shaft, the positioning ring slides up and down along the second annular groove, the top end of the pre-tightening spring presses against the positioning ring, and the storage tray can be removed from the mounting portion.

[0009] In some embodiments, an L-shaped input pipe is fixedly installed in the connecting part of the feeding hopper, one end of the L-shaped input pipe extends to the outside of the connecting part, and the other end extends downward from the inner cavity of the connecting part. An exhaust hole is opened in the interior of the rotating shaft and passes through it from top to bottom. The bottom end of the exhaust hole is connected to the inner cavity of the guide part, and a plug is threadedly installed on the top of the exhaust hole. Dry inert protective gas can be injected into the reaction vessel through the L-shaped input pipe, and the air in the reaction vessel is discharged through the exhaust hole.

[0010] In some embodiments, a conversion sleeve is threadedly installed on the surface of the connection part of the feeding hopper, and a third sealing ring is provided on the surface of the conversion sleeve. The conversion sleeve can be inserted into the inlet of the reaction container. There are multiple conversion sleeves, and the outer diameters of the multiple conversion sleeves are different. The conversion sleeves can be replaced as needed. Beneficial effects

[0011] The utility model provides a feeding device for anhydrous and oxygen-free reaction, which has the following beneficial effects:

[0012] 1. This feeding device for anhydrous and anaerobic reactions features a feeding hopper mounted at the mouth of a reaction vessel. The hopper contains multiple storage chambers, each of which can hold different materials. When the knob's rotating shaft drives the control dial, the feeding holes align with the storage chambers, allowing different materials to be added to the reaction vessel at different reaction times, thereby achieving the effect of controlled multi-material feeding.

[0013] 2. This feeding device for anhydrous and oxygen-free reactions utilizes an L-shaped inlet pipe and an exhaust hole in the rotating shaft. Dry, inert protective gas is injected into the reaction vessel through the L-shaped inlet pipe, and the air in the reaction vessel is expelled through the exhaust hole, maintaining an anhydrous and oxygen-free reaction environment within the reaction vessel. This process eliminates the need to disassemble the feeding hopper, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the feeding hopper;

[0016] Figure 3 This is a schematic diagram of the front cross-section structure of the feeding hopper;

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1 reaction container, 2 feeding hopper, 3 storage tray, 4 rotating shaft, 5 control disk, 6 storage chamber, 7 feeding hole, 8 clamping ring, 9 connecting part, 10 guide part, 11 mounting part, 12 first sealing ring, 13 second sealing ring, 14 positioning ring, 15 L-shaped input pipe, 16 exhaust hole, 17 plug, 18 conversion sleeve, 19 third sealing ring, 20 preload spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The utility model provides a technical solution: a feeding device for anhydrous and oxygen-free reaction, comprising a reaction vessel 1, a feeding hopper 2 is installed at the mouth of the reaction vessel 1, a placement cavity is provided at the upper end of the feeding hopper 2, and a storage tray 3 is tightly installed in the placement cavity, a plurality of storage cavities 6 are provided inside the storage tray 3, a rotating shaft 4 is slidably inserted inside the storage tray 3, a control disk 5 is fixedly installed at the bottom end of the rotating shaft 4, a groove is provided at the bottom end of the storage tray 3, and a first sealing ring 12 is fixedly installed in the groove, and the first sealing ring 12 is wrapped around the surface of the control disk 5.

[0021] The surface of the control disk 5 is provided with a feeding hole 7, and the surface of the rotating shaft 4 is provided with a preload spring 20 which is pressed upward against the rotating shaft 4. Specifically, the interior of the storage disk 3 is provided with a first annular groove and a second annular groove, a second sealing ring 13 is provided in the first annular groove, and the preload spring 20 is provided in the second annular groove. A positioning ring 14 is fixedly installed on the surface of the rotating shaft 4, and the positioning ring 14 slides up and down along the second annular groove. The top end of the preload spring 20 presses against the positioning ring 14. Figure 4 shown.

[0022] The upper opening of the feeding hopper 2 is threadedly installed with a clamping ring 8, which covers the upper port of the storage chamber 6. The top of the rotating shaft 4 passes through the inner ring hole of the clamping ring 8. Under the action of the preload spring 20, the control disk 5 is close to the lower end of the storage tray 3. When the control disk 5 is rotated, the feeding hole 7 and the lower opening of the storage chamber 6 are staggered, and the material can be fed into the storage chamber 6.

[0023] The feeding hopper 2 is composed of a connecting part 9, a guide part 10 and a mounting part 11 from bottom to top. The connecting part 9 and the guide part 10 form a funnel shape with a large upper opening and a small lower opening. The storage tray 3 is installed in the mounting part 11. The storage tray 3 can be removed from the mounting part 11 for cleaning or replacement.

[0024] An L-shaped input pipe 15 is fixedly installed in the connecting part 9 of the feeding hopper 2. One end of the L-shaped input pipe 15 extends to the outside of the connecting part 9, and the other end extends downward from the inner cavity of the connecting part 9. An exhaust hole 16 is opened in the interior of the rotating shaft 4 and passes through it from top to bottom. The bottom end of the exhaust hole 16 is connected to the inner cavity of the guide part 10, and a plug 17 is threadedly installed on the top of the exhaust hole 16.

[0025] By providing an L-shaped input pipe 15 and opening an exhaust hole 16 in the rotating shaft 4, dry inert protective gas can be injected into the reaction vessel 1 through the L-shaped input pipe 15, and the air in the reaction vessel 1 can be discharged through the exhaust hole 16, so that the reaction vessel 1 maintains a water-free and oxygen-free reaction environment. In this process, there is no need to disassemble the feeding hopper 2, which is more convenient to use.

[0026] A conversion sleeve 18 is threadedly installed on the surface of the connection part 9 of the feeding hopper 2. A third sealing ring 19 is provided on the surface of the conversion sleeve 18. The conversion sleeve 18 can be inserted into the inlet of the reaction vessel 1. There are multiple conversion sleeves 18, and the outer diameters of the multiple conversion sleeves 18 are different. The conversion sleeves 18 can be replaced as needed.

[0027] The feeding device for anhydrous and anaerobic reactions is characterized by installing a feeding hopper 2 at the mouth of a reaction vessel 1. The feeding hopper 2 has multiple storage chambers 6, and different materials can be placed in different storage chambers 6. When the knob rotation shaft 4 drives the control disk 5 to rotate, the feeding hole 7 is aligned with the storage chamber 6, and different materials can be added to the reaction vessel 1 at different reaction times, thereby achieving the effect of controlling the feeding of multiple materials.

[0028] Working principle: Install the conversion sleeve 18 at the lower end of the feeding hopper 2, insert the conversion sleeve 18 into the mouth of the reaction vessel 1, and unscrew the clamping ring 8. Figure 1As shown, before adding materials, dry inert protective gas is first injected into the reaction vessel 1 through the L-shaped input pipe 15, and the air in the reaction vessel 1 is discharged from the exhaust hole 16. It is selected whether to install a plug 17 on the top of the exhaust hole 16 as needed, and then a certain amount of material is added to the storage cavity 6 at different positions. The clamping ring 8 is covered, and the rotating shaft 4 is rotated to rotate the control disk 5. When the feeding hole 7 is aligned with the storage cavity 6, different materials can be added to the reaction vessel 1 to complete the operation of adding materials at different reaction times.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for anhydrous and oxygen-free reaction, comprising a reaction vessel (1), characterized in that: The mouth of the reaction container (1) is provided with a feeding hopper (2), the upper end of the feeding hopper (2) is provided with a placement cavity, and a storage tray (3) is tightly installed in the placement cavity, a plurality of storage cavities (6) are provided inside the storage tray (3), a rotating shaft (4) is slidably inserted inside the storage tray (3), a control disk (5) is fixedly installed at the bottom end of the rotating shaft (4), a feeding hole (7) is provided on the surface of the control disk (5), and a preload spring (20) is sleeved on the surface of the rotating shaft (4) for pressing the rotating shaft (4) upward; The upper opening of the feeding hopper (2) is internally threaded with a clamping ring (8), which covers the upper port of the material storage chamber (6), and the top end of the rotating shaft (4) passes through the inner ring hole of the clamping ring (8) upward.

2. A feeding device for anhydrous and oxygen-free reaction according to claim 1, characterized in that: The feeding hopper (2) comprises, from bottom to top, a connecting portion (9), a flow guiding portion (10) and a mounting portion (11), wherein the connecting portion (9) and the flow guiding portion (10) form a funnel shape with a large upper opening and a small lower opening, and the storage tray (3) is mounted in the telescopic mounting portion (11).

3. A feeding device for anhydrous and oxygen-free reaction according to claim 2, characterized in that: A groove is formed at the bottom end of the storage tray (3), and a first sealing ring (12) is fixedly installed in the groove. The first sealing ring (12) is wrapped around the surface of the control tray (5).

4. A feeding device for anhydrous and oxygen-free reaction according to claim 3, characterized in that: The storage tray (3) is provided with a first annular groove and a second annular groove, respectively. A second sealing ring (13) is provided in the first annular groove. A preload spring (20) is provided in the second annular groove. A positioning ring (14) is fixedly mounted on the surface of the rotating shaft (4). The positioning ring (14) slides up and down along the second annular groove. The top end of the preload spring (20) presses against the positioning ring (14).

5. A feeding device for anhydrous and oxygen-free reaction according to claim 4, characterized in that: An L-shaped input pipe (15) is fixedly installed in the connecting portion (9) of the feeding hopper (2), one end of the L-shaped input pipe (15) extends to the outside of the connecting portion (9), and the other end extends downward from the inner cavity of the connecting portion (9).

6. A feeding device for anhydrous and oxygen-free reaction according to claim 5, characterized in that: An exhaust hole (16) is provided in the interior of the rotating shaft (4) and extends through the interior. The bottom end of the exhaust hole (16) is communicated with the inner cavity of the guide portion (10). A plug (17) is threadedly mounted on the top end of the exhaust hole (16).

7. A feeding device for anhydrous and oxygen-free reaction according to any one of claims 1 to 6, characterized in that: A conversion sleeve (18) is threadedly mounted on the surface of the connection portion (9) of the feeding hopper (2). A third sealing ring (19) is provided on the surface of the conversion sleeve (18). The conversion sleeve (18) can be inserted into the inlet of the reaction container (1).

8. A feeding device for anhydrous and oxygen-free reaction according to claim 7, characterized in that: There are a plurality of conversion sleeves (18), and the outer diameters of the plurality of conversion sleeves (18) are different.

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