A microwave-assisted synthesis reaction device

Abstract

This utility model discloses a microwave-assisted synthesis reaction device, belonging to the field of microwave equipment technology. The device includes a housing, a microwave chamber, and a door. The housing has a first through-hole containing a waveguide cutoff tube. A bottom cylinder is hinged to the upper surface of the housing, and a first support rod is detachably connected to the bottom cylinder. The bottom cylinder rotates relative to the housing to switch the first support rod between an unfolded and folded position. This utility model, by providing a first support rod on the housing, can support other auxiliary instruments, eliminating the need for a metal stand and reducing space occupation. The first support rod is foldable, and a first groove on the housing accommodates it, further reducing space occupation when not in use. A second support rod is adjustable above the housing, providing stable support for auxiliary instruments of different shapes in different positions, offering good adaptability. A second groove on the housing accommodates the second support rod, further reducing space occupation.

Description

Technical Field

[0001] This utility model belongs to the field of microwave equipment technology, and specifically relates to a microwave-assisted synthesis reaction device. Background Technology

[0002] Microwave synthesis reaction equipment is a laboratory device based on microwave heating technology. It utilizes microwave radiation to accelerate chemical reactions, achieving rapid and uniform heating of the reaction system and effectively increasing the reaction rate. It is mainly used for chemical reactions and physical processes in fields such as catalytic organic synthesis, drug development, and material preparation. It can perform synthesis reactions such as addition, esterification, and polymerization, as well as solvent extraction. Currently, microwave synthesis reaction equipment typically requires connecting external auxiliary instruments, such as funnels and condensers, to the internal flasks. These external auxiliary instruments are usually fixed to the equipment using iron stands. This method necessitates placing the iron stands next to the microwave synthesis reaction equipment, which is inconvenient and, in some locations, lacks sufficient space, thus affecting operation. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a microwave-assisted synthesis reaction device that allows auxiliary instruments to be fixed above the equipment.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A microwave-assisted synthesis reaction apparatus includes a housing, a microwave chamber disposed within the housing, and a door connected to the housing. The housing has a first through hole, and a waveguide cutoff tube is disposed within the first through hole. A bottom cylinder is hinged to the upper end face of the housing, and a first support rod is detachably connected to the bottom cylinder. The bottom cylinder rotates relative to the housing to switch the first support rod between an unfolded position and a folded position. In the unfolded position, the first support rod is perpendicular to the upper end face of the housing, and in the folded position, the first support rod rests against the housing.

[0006] Furthermore, the upper surface of the box body is provided with a first groove, the bottom cylinder is located in the first groove, and the first support rod is located in the first groove when in the folded position.

[0007] Furthermore, the housing is provided with a first limiting bolt corresponding to the bottom cylinder, and the bottom cylinder is provided with a first limiting threaded hole corresponding to the first limiting bolt. When the first support rod is in the unfolded position, the first limiting bolt is connected to the bottom cylinder.

[0008] Furthermore, the upper surface of the housing is provided with a slide rail, a slider is movably connected to the slide rail, and a second support rod is detachably connected to the slider.

[0009] Furthermore, the slider is provided with a second threaded hole, the second support rod is threadedly connected to the slider, and a second set screw is connected to the slider. When the second set screw is tightened, it abuts against the slide rail.

[0010] Furthermore, the slide is circular and the circle containing the slide is concentric with the circle containing the first through hole.

[0011] Furthermore, the upper surface of the housing is provided with a second groove corresponding to the second support rod.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0013] 1. By setting a first support rod on the box, it can be used to support other auxiliary instruments without the need for an iron stand, thus reducing space occupation. The first support rod is foldable, and the box has a first groove to accommodate the first support rod, reducing the space occupied when not in use.

[0014] 2. By setting slides and sliders on the housing, and connecting the second support rod to the slider, the position of the second support rod is adjustable above the housing, providing stable support for auxiliary instruments of different shapes at different positions, with good adaptability;

[0015] 3. The second support rod is detachably connected to the slider, and a second groove is provided on the housing to accommodate the second support rod, reducing the space occupied. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the device according to an embodiment of the present invention;

[0017] Figure 2 This is a top view of the structure of an embodiment;

[0018] Figure 3 This is a schematic diagram of the structure of the first support rod in the unfolded position in the embodiment;

[0019] Figure 4 This is a schematic diagram of the slider cross-section structure in the embodiment;

[0020] Figure 5 This is a schematic diagram of the device in use in the embodiment;

[0021] Figure 6 This is a schematic diagram of the iron ring structure in an embodiment. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0023] like Figure 1 and Figure 2 As shown, a microwave-assisted synthesis reaction apparatus includes a housing 1 and a door 11. A microwave chamber 101 is provided inside the housing 1. One side of the door 11 is hinged to the housing 1 for opening or closing the microwave chamber 101. The housing 1 is rectangular, and the microwave chamber 101 is also rectangular. In this embodiment, the housing 1 uses an existing microwave reactor, such as the WBFY-201 microwave reactor manufactured by Zhengzhou Zhuocheng Instruments, with a volume of 23L. A magnetron is installed inside the housing 1, which converts electrical energy into high-frequency electromagnetic waves to generate microwaves. Microwaves are used within the microwave chamber 101 to accelerate the chemical reaction and improve reaction efficiency.

[0024] like Figure 1 and Figure 2 As shown, a first through hole 102 is provided at the top center of the housing 1. The first through hole 102 penetrates the top of the housing 1 and communicates with the microwave cavity 101. The first through hole 102 is a circular hole, which facilitates the insertion of a glass tube into the microwave cavity 101 through the first through hole 102. A waveguide cutoff tube 2 is provided inside the first through hole 102. The waveguide cutoff tube 2 is a conventional electromagnetic shielding waveguide cutoff tube. The waveguide cutoff tube 2 utilizes the critical frequency characteristics to block microwaves below the operating frequency band. The cutoff frequency of the waveguide cutoff tube 2 is higher than the microwave reactor frequency of 2450MHz in this embodiment, so microwaves cannot penetrate it. Since the first through hole 102 forms a weak point for electromagnetic leakage, the waveguide cutoff tube 2 ensures that the first through hole 102 is unobstructed while preventing microwave leakage, thus ensuring the overall shielding effect of the housing 1 and making the microwave leakage value ≤5mW / cm. 2 .

[0025] like Figure 2 , Figure 3 and Figure 5As shown, the upper surface of the box 1 is provided with a first groove 103, which is a vertically arranged strip groove. A bottom cylinder 3 is provided in the end of the first groove 103 near the back of the box 1. A bottom shaft 33 is provided at the lower end of the bottom cylinder 3. The bottom cylinder 3 is rotatably connected to the box 1 through the bottom shaft 33, so that the bottom cylinder 3 is hinged to the box 1. A first threaded hole is provided at the upper end of the bottom cylinder 3. An external thread corresponding to the first threaded hole is provided at the lower end of the first support rod 4, so that the first support rod 4 is detachably connected to the bottom cylinder 3. The bottom cylinder 3 rotates relative to the box 1 to switch the first support rod 4 between the unfolded position and the folded position. In the unfolded position, the first support rod 4 is perpendicular to the upper surface of the box 1. In the folded position, the first support rod 4 is stacked against the box 1. At this time, the first support rod 4 is located in the first groove 103. The length of the first groove 103 can accommodate the first support rod 4. A first limiting bolt 31 is provided on the side of the housing 1 near the first groove 103. The position of the first limiting bolt 31 corresponds to the bottom cylinder 3. The bottom cylinder 3 is provided with a first limiting threaded hole 32 corresponding to the first limiting bolt 31. When the first support rod 4 is in the unfolded position, the first limiting bolt 31 is aligned with the first limiting threaded hole 32. Tightening the first limiting bolt 31 connects the first limiting bolt 31 to the bottom cylinder 3 through the first limiting threaded hole 32, thereby fixing the bottom cylinder 3 and thus restricting the first support rod 4 to the unfolded position.

[0026] like Figure 1 , Figure 2 and Figure 4As shown, the upper surface of the housing 1 is provided with a slide rail 5. The slide rail 5 is circular and the circle containing the slide rail 5 is concentric with the circle containing the first through hole 102, so that the slide rail 5 surrounds the first through hole 102. The cross-section of the slide rail 5 is T-shaped. A slider 6 is movably connected to the slide rail 5. The lower end surface of the slider 6 is provided with a T-shaped groove corresponding to the slide rail 5, so that the slider 6 can slide relative to the slide rail 5. A second set screw 62 is threadedly connected to the slider 6. The lower end of the second set screw 62 passes through the slider 6 and enters the T-shaped groove. When the second set screw 62 is tightened, the second set screw 62 abuts against the slide rail 5, thereby fixing the position of the slider 6. After the second set screw 62 is loosened, the slider 6 slides to any position on the slide rail 5. After reaching the predetermined position, the second set screw 62 is tightened to fix the slider 6. The slider 6 is provided with a second threaded hole 61, and the lower end of the second support rod 7 is provided with an external thread corresponding to the second threaded hole 61. The second support rod 7 is threadedly connected to the slider 6. When the second support rod 7 is connected to the slider 6, the second support rod 7 is perpendicular to the upper end face of the housing 1. The upper end face of the housing 1 is provided with a second groove 104 corresponding to the second support rod 7. The second groove 104 is symmetrically arranged with the first groove 103. The length of the second groove 104 is sufficient to accommodate the second support rod 7. When the second support rod 7 does not need to be connected to the slider 6, it can be removed and placed in the second groove 104. When the first support rod 4 and the bottom cylinder 3 are located in the first groove 103, the height of the uppermost end does not exceed the height of the plane where the upper end face of the housing 1 is located. When the second support rod 7 is placed in the second groove 104, the height of the uppermost end also does not exceed the height of the plane where the upper end face of the housing 1 is located. Both the first groove 103 and the second groove 104 are provided with functional slots to facilitate the insertion of fingers to move the two support rods.

[0027] In this embodiment, when the microwave-assisted synthesis reaction apparatus is in use, the three-necked flask 81 is placed in the microwave chamber 101, and the lower end of the glass three-way tube 82 passes through the first through hole 102 and is connected to one of the openings of the three-necked flask 81. The branch tube 821 of the glass three-way tube 82 is located above the housing 1 and is used to connect other glass instruments, etc. Rotate the first support rod 4 to the unfolded position and tighten the first limiting bolt 31 to fix the position of the first support rod 4. The first support rod 4 is used to connect and fix iron rings or clamps for glass instruments such as flasks, funnels and condensers. The iron rings or clamps are existing iron rings of different diameters or clamps of different lengths that are connected to the iron stand. In this embodiment, existing iron rings are used. At this time, the iron ring 41 is connected to the first support rod 4. The iron ring 41 is provided with a sleeve corresponding to the first support rod 4. One end of the iron ring 41 is sleeved on the first support rod 4 through the sleeve and can move up and down. The sleeve is threaded with a third set bolt 42. By tightening the third set bolt 42, the third set bolt 42 is pressed against the first support rod 4 to fix the iron ring 41. The iron ring 41 is used to place glass instruments such as funnels. When multiple different iron rings or clamps need to be fixed, the second support rod 7 is connected to the slider 6. The second support rod 7 acts as another support rod. At the same time, since the slider 6 can slide on the slide rail 5, the second support rod 7 can be fixed at any position around the first through hole 102. It has good adaptability and can be used to move iron rings or clamps to any position to fix various glass auxiliary instruments.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A microwave-assisted synthesis reaction apparatus, characterized in that, The device includes a housing (1), a microwave cavity (101) disposed within the housing (1), and a door (11) connected to the housing (1). The housing (1) has a first through hole (102) and a waveguide cutoff tube (2) disposed within the first through hole (102). A bottom cylinder (3) is hinged to the upper end face of the housing (1). A first support rod (4) is detachably connected to the bottom cylinder (3). The bottom cylinder (3) rotates relative to the housing (1) to switch the first support rod (4) between an unfolded position and a folded position. In the unfolded position, the first support rod (4) is perpendicular to the upper end face of the housing (1). In the folded position, the first support rod (4) rests against the housing (1).

2. The microwave-assisted synthesis reaction apparatus according to claim 1, characterized in that, The upper surface of the box body (1) is provided with a first groove (103), the bottom cylinder (3) is located in the first groove (103), and the first support rod (4) is located in the first groove (103) when in the folded position.

3. The microwave-assisted synthesis reaction apparatus according to claim 2, characterized in that, The box body (1) is provided with a first limiting bolt (31) corresponding to the bottom cylinder (3), and the bottom cylinder (3) is provided with a first limiting threaded hole (32) corresponding to the first limiting bolt (31). When the first support rod (4) is in the unfolded position, the first limiting bolt (31) is connected to the bottom cylinder (3).

4. The microwave-assisted synthesis reaction apparatus according to claim 1, characterized in that, The upper surface of the box (1) is provided with a slide (5), and a slider (6) is movably connected to the slide (5). A second support rod (7) is detachably connected to the slider (6).

5. The microwave-assisted synthesis reaction apparatus according to claim 4, characterized in that, The slider (6) is provided with a second threaded hole (61), the second support rod (7) is threadedly connected to the slider (6), and a second set screw (62) is connected to the slider (6). When the second set screw (62) is tightened, it abuts against the slide rail (5).

6. The microwave-assisted synthesis reaction apparatus according to claim 4, characterized in that, The slide (5) is circular and the circle containing the slide (5) is concentric with the circle containing the first through hole (102).

7. The microwave-assisted synthesis reaction apparatus according to claim 4, characterized in that, The upper surface of the box (1) is provided with a second groove (104) corresponding to the second support rod (7).

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