Automatic cover opening and closing reaction kettle for laboratory

Abstract

The utility model belongs to the technical field of laboratory reaction equipment, and particularly relates to an automatic cover opening and closing reaction kettle for a laboratory. Comprising a bottom plate, a two-dimensional motion mechanism, a reaction kettle base and a locking mechanism, the two-dimensional motion mechanism, the reaction kettle base and the locking mechanism are arranged on the bottom plate, a reaction kettle body is arranged on the reaction kettle base, a reaction kettle lining is arranged in the reaction kettle body, a reaction kettle cover is arranged at the output end of the two-dimensional motion mechanism, and the two-dimensional motion mechanism is used for driving the reaction kettle cover to be buckled with or separated from the reaction kettle body. The locking mechanism is used for locking the reaction kettle cover after the reaction kettle cover is buckled on the reaction kettle body, and the reaction kettle cover and the reaction kettle body are sealed through a sealing ring. The cover of the reaction kettle can be automatically opened and closed, manual intervention is reduced, and the experimental reaction efficiency and consistency are remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory reaction equipment, and particularly relates to an automatic cover-opening and closing reaction kettle for laboratories. Background Art

[0002] Automatic cover-opening and closing reaction kettles are widely used in industrial fields such as chemistry, pharmacy, food, and metallurgy. In chemical reactions, they can provide functions such as constant temperature, stirring, and reactant mixing, meeting the requirements of various complex reactions. In the pharmaceutical industry, automatic cover-opening and closing reaction kettles can be used for synthesizing various pharmaceutical intermediates and bulk drugs. In the food industry, they can be used for producing seasonings, food additives, etc. In addition, automatic cover-opening and closing reaction kettles can also be used in fields such as new material synthesis and environmental governance.

[0003] At present, for traditional reaction kettles, most processes are manually operated, with low levels of automation and intelligent control. It is difficult to precisely control reaction conditions, and the energy consumption and material consumption costs are high, the production efficiency is low, and the product quality is difficult to guarantee. Therefore, there is an urgent need for an automatic cover-opening and closing reaction kettle with a high degree of automation and intelligent control. Summary of the Utility Model

[0004] Aiming at the above problems, the purpose of the utility model is to provide an automatic cover-opening and closing reaction kettle for laboratories, so as to solve the problems of low levels of automation and intelligent control of traditional reaction kettles, difficult precise control of reaction conditions, high energy consumption and material consumption costs, low production efficiency, and difficult guarantee of product quality.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides an automatic cover-opening and closing reaction kettle for laboratories, which includes a bottom plate, a two-dimensional motion mechanism arranged on the bottom plate, a reaction kettle base and a locking mechanism. A reaction kettle body is arranged on the reaction kettle base, a reaction kettle liner is arranged inside the reaction kettle body, a reaction kettle cover is arranged at the output end of the two-dimensional motion mechanism, the two-dimensional motion mechanism is used to drive the reaction kettle cover to be buckled with or away from the reaction kettle body, the locking mechanism is used for locking after the reaction kettle cover is buckled on the reaction kettle body, and the reaction kettle cover and the reaction kettle body are sealed through a sealing ring.

[0007] The locking mechanism includes a locking sleeve, a locking mechanism bracket, a guide rail, a locking slider, a bidirectional transmission module and a rotary drive assembly. The locking mechanism bracket and the rotary drive assembly are both arranged on the bottom plate, the guide rail and the bidirectional transmission module are both arranged on the locking mechanism bracket, two reverse output ends of the bidirectional transmission module are respectively connected to two locking sleeves, the two locking sleeves are in sliding fit with the guide rail through the locking slider, and the two locking sleeves are respectively located on both sides of the reaction kettle body; the rotary drive assembly is connected to the bidirectional transmission module, and the rotary drive assembly drives the two locking sleeves to approach or move away from each other through the bidirectional transmission module.

[0008] The bidirectional transmission module includes a nut and a lead screw. There are two lead screws, which are respectively rotatably installed on the locking mechanism bracket. The two lead screws are respectively located on both sides of the reaction kettle body. Each lead screw has two sections of reverse threads, and the two sections of reverse threads are respectively matched with two nuts. The two nuts are respectively connected to one end of the two locking sleeves.

[0009] The rotation drive assembly includes a gearbox bracket, a locking motor, a driving gear and two driven gears. The gearbox bracket is arranged on the bottom plate. The driving gear and the two driven gears are all rotatably installed in the gearbox bracket, and the driving gear meshes with the two driven gears. The locking motor is installed outside the gearbox bracket, and the output end is connected to the driving gear. The two driven gears are respectively connected to the two lead screws through couplings.

[0010] The locking surface of the locking sleeve includes a semi-circular ring surface and inclined surfaces arranged on the upper and lower sides of the semi-circular ring surface. The inclined surfaces generate a clamping force in the vertical direction on the reaction kettle cover and the reaction kettle body during the radial locking process of the semi-circular ring surface, so as to compress the sealing ring.

[0011] The reaction kettle cover is provided with a temperature sensor, a pressure gauge and a pressure sensor. The temperature sensor and the pressure sensor are respectively used to detect the temperature and pressure in the reaction kettle body, and the pressure value is displayed by the pressure gauge.

[0012] The reaction kettle cover is also provided with a safety bursting valve, which automatically opens when the pressure value in the reaction kettle body exceeds the safety value.

[0013] The two-dimensional motion mechanism includes a horizontal motion module and a vertical motion module. The horizontal motion module is arranged on the bottom plate and is used to provide power in the horizontal direction. The vertical motion module is connected to the output end of the horizontal motion module, and the output end of the vertical motion module is connected to the reaction kettle cover.

[0014] The advantages and beneficial effects of the present utility model are as follows: An automatic switch cover reaction kettle for laboratories provided by the present utility model realizes the automatic opening and closing of the reaction kettle cover, reduces manual intervention, and significantly improves the experimental reaction efficiency and consistency. For the high-temperature and high-pressure reaction of the reaction kettle, the kettle cover is automatically opened and closed, and personnel can stay away from the high-temperature, high-pressure and corrosive areas, improving safety. The automatic opening and closing of the reaction kettle cover is the basic premise for realizing the full automation of the entire laboratory.

[0015] In the present utility model, the locking motor adopts a stepping or servo motor with a brake. When the system suddenly loses power, the motor brake locks, and the locking sleeve maintains its position and torque, preventing the leakage of high-temperature, high-pressure and corrosive gas and liquid in the reaction kettle and improving safety.

[0016] The lead screw of the present utility model adopts a positive and reverse thread lead screw with the middle as the boundary, enabling a single motor to achieve the simultaneous in-phase or reverse movement of two locking sleeves, reducing the system control difficulty and hardware cost, and improving the reliability at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an axonometric view of an automatic switch cover reaction kettle for a laboratory of the present utility model;

[0018] Figure 2 is a sectional view of the locking structure of the kettle cover of the automatic switch cover reaction kettle of the present utility model.

[0019] In the figure: 1 - bottom plate, 2 - locking motor, 3 - driving gear, 4 - driven gear, 5 - coupling, 6 - lead screw seat, 7 - nut, 8 - lead screw, 9 - reaction kettle liner, 10 - reaction kettle body, 11 - locking sleeve, 12 - gearbox support, 13 - horizontal motor, 14 - locking mechanism support, 15 - horizontal movement module, 16 - reaction kettle base, 17 - guide rail, 18 - locking slider, 19 - horizontal slider, 20 - vertical motor, 21 - vertical movement module, 22 - rotor, 23 - vertical slider, 24 - temperature sensor, 25 - pressure gauge, 26 - pressure sensor, 27 - safety bursting valve, 28 - reaction kettle cover, 29 - sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Refer to Figure 1 、 Figure 2 As shown, the present utility model provides an automatic switch cover reaction kettle for a laboratory, including a bottom plate 1 and a two-dimensional movement mechanism, a reaction kettle base 16 and a locking mechanism arranged on the bottom plate 1. A reaction kettle body 10 is arranged on the reaction kettle base 16, a reaction kettle liner 9 is arranged inside the reaction kettle body 10, the output end of the two-dimensional movement mechanism is provided with a reaction kettle cover 28, the two-dimensional movement mechanism is used to drive the reaction kettle cover 28 to be buckled with or away from the reaction kettle body 10, the locking mechanism is used for locking after the reaction kettle cover 28 is buckled on the reaction kettle body 10, and the reaction kettle cover 28 and the reaction kettle body 10 are sealed by a sealing ring 29.

[0022] Refer to Figure 1 、 Figure 2As shown in the figure, in the embodiment of the present utility model, the locking mechanism includes a locking sleeve 11, a locking mechanism bracket 14, a guide rail 17, a locking slider 18, a bidirectional transmission module and a rotation drive assembly. Among them, the locking mechanism bracket 14 and the rotation drive assembly are both arranged on the bottom plate 1, the guide rail 17 and the bidirectional transmission module are both arranged on the locking mechanism bracket 14, the two reverse output ends of the bidirectional transmission module are respectively connected to the two locking sleeves 11, the two locking sleeves 11 are slidably matched with the guide rail 17 through the locking slider 18, and the two locking sleeves 11 are respectively located on both sides of the reaction kettle body 10; the rotation drive assembly is connected to the bidirectional transmission module, and the rotation drive assembly drives the two locking sleeves 11 to approach or move away from each other through the bidirectional transmission module.

[0023] In the embodiment of the present utility model, the bidirectional transmission module includes a nut 7 and a lead screw 8. Among them, there are two lead screws 8, which are respectively rotatably installed on the locking mechanism bracket 14, and both ends of the lead screw 8 are supported by a lead screw seat 6. The two lead screws 8 are respectively located on both sides of the reaction kettle body 10. Each lead screw 8 has two sections of reverse threads, and the two sections of reverse threads are respectively matched with the two nuts 7, and the two nuts 7 are respectively connected to one end of the two locking sleeves 11.

[0024] Furthermore, there are two guide rails 17, and both are parallel to the lead screw 8 to ensure smooth movement. Both of the two lead screws 8 are left - hand and right - hand threaded lead screws with the middle as the boundary, so that when the lead screw 8 rotates, the two locking sleeves 11 are respectively driven by the two nuts 7 to move in opposite directions.

[0025] In the embodiment of the present utility model, the rotation drive assembly includes a gearbox bracket 12, a locking motor 2, a driving gear 3 and two driven gears 4. Among them, the gearbox bracket 12 is arranged on the bottom plate 1, the driving gear 3 and the two driven gears 4 are both rotatably installed inside the gearbox bracket 12, and the driving gear 3 meshes with the two driven gears 4; the locking motor 2 is installed outside the gearbox bracket 12, and the output end is connected to the driving gear 3, and the two driven gears 4 are respectively connected to the two lead screws 8 through couplings 5. The locking motor 2 drives the driven gears 4 to rotate through the driving gear 3, and then drives the lead screw 8 to rotate. The locking motor 2 is a stepping or servo motor with a brake. The brake ensures that when the system loses power abnormally and there is pressure inside the reaction kettle, the lead screw 8 will not rotate, and the locking sleeve 11 maintains its position and torque, and can always lock the reaction kettle body 10 and the reaction kettle cover 28, improving safety.

[0026] Specifically, when the lead screw 8 rotates in the clockwise direction, it drives the two locking sleeves 11 to move towards the center through the nut 7, locking the reaction kettle cover 28 and the reaction kettle body 10; conversely, when the lead screw 8 rotates in the counter - clockwise direction, it drives the two locking sleeves 11 to move towards both sides through the nut 7, releasing the reaction kettle cover 28 and the reaction kettle body 10.

[0027] See Figure 1 、Figure 2 As shown in the figure, in the embodiment of the present utility model, the locking surface of the locking sleeve 11 includes a semi-circular ring surface and inclined surfaces arranged on the upper and lower sides of the semi-circular ring surface. During the radial locking process of the semi-circular ring surface, the inclined surfaces generate a clamping force in the vertical direction on the reactor cover 28 and the reactor body 10, thereby pressing the sealing ring 29 tightly.

[0028] Specifically, when the two locking sleeves 11 move towards each other, the upper and lower inclined surfaces on the inner side of the locking sleeve 11 are tightly pressed against the inclined surfaces on the outer sides of the reactor cover 28 and the reactor body 10. The horizontal pressure generated by the locking sleeves 11 moving towards each other is converted into a vertical pressure between the reactor body 10 and the reactor cover 28. The reactor cover 28 and the reactor body 10 are tightly combined, and the airtightness of the reactor is ensured by compressing the sealing ring 29.

[0029] Furthermore, a temperature sensor 24, a pressure gauge 25, and a pressure sensor 26 are provided on the reactor cover 28. The temperature sensor 24 and the pressure sensor 26 are respectively used to detect the temperature and pressure inside the reactor body 10, and the pressure value is displayed by the pressure gauge 25.

[0030] Furthermore, a safety bursting valve 27 is also provided on the reactor cover 28. The safety bursting valve 27 automatically opens when the pressure value inside the reactor body 10 exceeds the safety value.

[0031] In the embodiment of the present utility model, the two-dimensional motion mechanism includes a horizontal motion module 15 and a vertical motion module 21. The horizontal motion module 15 is arranged on the bottom plate 1 and is used to provide power in the horizontal direction; the vertical motion module 21 is connected to the output end of the horizontal motion module 15, and the output end of the vertical motion module 21 is connected to the reactor cover 28.

[0032] Specifically, the input end of the horizontal motion module 15 is connected to the horizontal motor 13, and the output end of the horizontal motion module 15 is connected to the horizontal slider 19. When the horizontal motor 13 rotates, it drives the horizontal slider 19 to achieve horizontal motion positioning. Preferably, the horizontal motor 13 is a stepper or servo motor without a brake.

[0033] See Figure 1 As shown in the figure, in the embodiment of the present utility model, the vertical motion module 21 is installed on the horizontal slider 19. The input end of the vertical motion module 21 is connected to the vertical motor 20, and the output end of the vertical motion module 21 is connected to the vertical slider 23. When the vertical motor 20 rotates, it drives the vertical slider 23 to achieve up and down motion positioning. Preferably, the vertical motor 20 is a stepper or servo motor with a brake. The brake ensures that when the system loses power abnormally, the vertical slider 23 will not fall due to gravity and damage the mechanism, improving safety.

[0034] The reactor cover 28 is installed on the vertical slider 23, and the rotor 22, pressure gauge 25, pressure sensor 26, temperature sensor 24, and safety rupture disc 27 are all installed on the reactor cover 28.

[0035] An automatic cover-opening and closing reactor for laboratory provided by the present utility model is mainly used for hydrothermal reactions in the laboratory. Its working principle is as follows:

[0036] The automatic cover-opening process of the reactor: The locking motor 2 drives the driving gear 3 to rotate, the driving gear 3 drives the driven gear 4 to rotate, the driven gear 4 drives the lead screw 8 to rotate through the coupling 5, the lead screw 8 drives the nut 7 engaged therewith to move, and the nut 7 drives the two locking sleeves 11 to move to both sides, so that the reactor cover 28 and the reactor body 10 are separated. The vertical motor 20 rotates to drive the vertical slider 23 to move upward, lifting the reactor cover 28. The horizontal motor 13 rotates to drive the horizontal slider 19 to move leftward, transferring the reactor cover 28, thus completing the automatic cover-opening process. After the cover is opened, the liquid or powder to be reacted can be placed in the reactor liner 9.

[0037] The automatic cover-closing process of the reactor: The horizontal motor 13 rotates to drive the horizontal slider 19 to move rightward, transferring the reactor cover 28 to directly above the reactor body 10. The vertical motor 20 rotates to drive the vertical slider 23 to move downward, placing the reactor cover 28 downward on the reactor body 10. The locking motor 2 drives the driving gear 3 to rotate, the driving gear 3 drives the driven gear 4 to rotate, the driven gear 4 drives the lead screw 8 to rotate through the coupling 5, the lead screw 8 drives the nut 7 engaged therewith to move, and the nut 7 drives the two locking sleeves 11 to move toward the position of the central reactor body 10, and the reactor cover 28 and the reactor body 10 are locked by the locking sleeves 11. The sealing ring 29 between the reactor cover 28 and the reactor body 10 is compressed to ensure airtightness, thus completing the automatic cover-closing process. After the cover is closed, hydrothermal reactions can be carried out through heating and stirring, etc.

[0038] An automatic cover-opening and closing reactor device for laboratory provided by the present utility model realizes the vertical lifting and lowering of the reactor cover through a vertical motion module, and realizes the horizontal motion transfer function through a horizontal motion module; the locking motor drives the locking sleeve to move to realize the locking and separation of the reactor cover and the reactor body. The locking and separation of the reactor cover and the reactor body, combined with the transfer of the reactor cover, realize the function of the automatic cover-opening and closing reactor. Therefore, the present utility model firstly realizes highly automated and intelligent control, improving production efficiency and product quality. Secondly, by precisely controlling reaction conditions, energy consumption and material consumption costs are reduced. In addition, the automatic cover-opening and closing reactor also has the characteristics of simple operation, safety and reliability, etc., reducing the risks and errors of manual operation.

[0039] The above are only the embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions, improvements, expansions, etc. made within the spirit and principle of the present utility model are all included in the protection scope of the present utility model.

Claims

1. A reactor with automatic lid opening and closing for laboratory use, characterized in that: The invention comprises a bottom plate (1), a two-dimensional motion mechanism arranged on the bottom plate (1), a reactor base (16) and a locking mechanism, wherein a reactor body (10) is arranged on the reactor base (16), a reactor liner (9) is arranged in the reactor body (10), a reactor cover (28) is arranged at the output end of the two-dimensional motion mechanism, the two-dimensional motion mechanism is used to drive the reactor cover (28) to engage with or move away from the reactor body (10), the locking mechanism is used to lock the reactor cover (28) after it is engaged with the reactor body (10), and the reactor cover (28) and the reactor body (10) are sealed by a sealing ring (29).

2. The automatic opening and closing lid reactor for laboratory use according to claim 1, characterized in that: The locking mechanism comprises a locking sleeve (11), a locking mechanism bracket (14), a guide rail (17), a locking slider (18), a bidirectional transmission module and a rotation drive assembly, wherein the locking mechanism bracket (14) and the rotation drive assembly are both arranged on the bottom plate (1), the guide rail (17) and the bidirectional transmission module are both arranged on the locking mechanism bracket (14), two reverse output ends of the bidirectional transmission module are respectively connected to two locking sleeves (11), the two locking sleeves (11) are slidably matched with the guide rail (17) through the locking slider (18), and the two locking sleeves (11) are respectively located on two sides of the reactor body (10); the rotation drive assembly is connected to the bidirectional transmission module, and the rotation drive assembly drives the two locking sleeves (11) to move closer to or farther away from each other through the bidirectional transmission module.

3. The automatic opening and closing lid reactor for laboratory use according to claim 2, characterized in that: The bidirectional transmission module comprises a nut (7) and a screw (8), wherein there are two screws (8) which are rotatably mounted on the locking mechanism bracket (14) respectively, and the two screws (8) are respectively located on two sides of the reactor body (10), and each screw (8) has two sections of reverse threads, which are respectively matched with two nuts (7), and the two nuts (7) are respectively connected to one end of the two locking sleeves (11).

4. The automatic opening and closing lid reactor for laboratory use according to claim 3, characterized in that: The rotary drive assembly comprises a gearbox bracket (12), a locking motor (2), a driving gear (3) and two driven gears (4), wherein the gearbox bracket (12) is arranged on the base plate (1), the driving gear (3) and the two driven gears (4) are both rotatably mounted in the gearbox bracket (12), and the driving gear (3) and the two driven gears (4) are meshed; The locking motor (2) is installed on the outside of the gear box bracket (12), and the output end is connected to the driving gear (3), and the two driven gears (4) are respectively connected to the two screw rods (8) through the coupling (5).

5. The automatic lid opening and closing reactor for laboratory use according to claim 2, characterized in that: The locking surface of the locking sleeve (11) comprises a semicircular surface and inclined surfaces arranged on the upper and lower sides of the semicircular surface. The inclined surface generates a vertical clamping force on the reactor cover (28) and the reactor body (10) during the radial locking process of the semicircular surface, thereby pressing the sealing ring (29).

6. The automatic opening and closing lid reactor for laboratory use according to claim 1, characterized in that: The reactor cover (28) is provided with a temperature sensor (24), a pressure gauge (25) and a pressure sensor (26), wherein the temperature sensor (24) and the pressure sensor (26) are used to detect the temperature and pressure in the reactor body (10), respectively, and the pressure value is displayed by the pressure gauge (25).

7. The automatic opening and closing lid reactor for laboratory use according to claim 6, characterized in that: The reactor cover (28) is also provided with a safety explosion valve (27), which automatically opens when the pressure value in the reactor body (10) exceeds a safety value.

8. The automatic opening and closing lid reactor for laboratory use according to claim 1, characterized in that: The two-dimensional motion mechanism comprises a horizontal motion module (15) and a vertical motion module (21), wherein the horizontal motion module (15) is arranged on the bottom plate (1), and the horizontal motion module (15) is used to provide power in the horizontal direction; the vertical motion module (21) is connected to the output end of the horizontal motion module (15), and the output end of the vertical motion module (21) is connected to the reactor cover (28).

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