Ventilation cabinet for laboratory

Abstract

The utility model discloses a laboratory fume hood which comprises a fume hood body, a control panel is installed on the surface of the fume hood body, an exhaust pipe is installed on the top of the fume hood body, and an annular rail is installed on the surface of an operation area of the fume hood body. When the experiment table is used, experiment equipment is placed at the center end of the surface of the operation table, the springs can extrude the corresponding connecting blocks and the rubber blocks towards the center to reset, and therefore the experiment equipment can be fixed to the surface of the operation table. At the moment, an experimenter can toggle the operation table according to requirements, the operation table can drive the rotating part to rotate in the base through the bottom plate at the bottom under the action of the toggle force, and therefore the experimenter can adjust the angle of the whole equipment according to requirements under the condition that the equipment is not adjusted; in this way, during use, the convenience of an experiment can be greatly improved through the structure.

Description

Technical Field

[0001] This utility model belongs to the field of fume hood technology, specifically relating to a laboratory fume hood. Background Technology

[0002] In the prior art, Chinese invention patent application CN114749454A discloses an explosion-proof glass plate for a laboratory fume hood and the fume hood itself. A rotating rod passes through a connecting block and is fixedly connected to it. A torsion spring is fixedly connected to a positioning block, with the end of the torsion spring away from the positioning block fixedly connected to the connecting block. A fixing assembly for fixing the frame is provided within the mounting frame. The fixing assembly includes a movable plate that slides through the mounting frame, a connecting rod fixedly connected to the movable plate, and a limiting ball fixedly connected to the connecting rod. A receiving groove for accommodating the limiting ball is provided on the frame, and a pressure relief assembly for moving the movable plate is provided on the mounting frame. This application improves the safety of the fume hood.

[0003] The experimental area of ​​such laboratory fume hoods is mostly designed as a flat and integrated workbench. While this design facilitates the neat placement and initial layout of experimental equipment, once the experimental equipment has been carefully set up, the experimenters often face a practical operational challenge: because all the equipment on the workbench is tightly connected, forming a relatively fixed overall structure, it is often extremely inconvenient for the experimenters to adjust the angle of a certain piece of equipment for more detailed observation or to perform specific operating procedures.

[0004] Specifically, once the experimental apparatus is securely placed on the fume hood workbench according to the experimental procedure, the spatial relationship between them is fixed. While this fixedness is beneficial for the continuity and stability of the experiment, it also limits the flexibility and adjustability during the experiment. When researchers find that they need to observe experimental phenomena from different angles or make fine adjustments to a certain experimental step, they have to spend more time and effort to readjust the entire experimental setup. This not only reduces experimental efficiency but may also increase the risk of experimental errors. Utility Model Content

[0005] The purpose of this invention is to provide a laboratory fume hood that addresses the problem that once experimental equipment is securely placed on the fume hood's workbench according to the experimental procedure, their spatial relationship becomes fixed. While this fixedness is beneficial for the continuity and stability of the experiment, it also limits the flexibility and adjustability during the experiment. When researchers find that they need to observe experimental phenomena from different angles or make fine adjustments to a certain experimental step, they have to spend more time and effort readjusting the entire experimental setup. This not only reduces experimental efficiency but may also increase the risk of experimental errors.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laboratory fume hood, comprising a fume hood, a control panel mounted on the surface of the fume hood, an exhaust duct mounted on the top of the fume hood, and a circular track mounted on the surface of the operating area of ​​the fume hood;

[0007] An operating platform is movably connected to the top of the circular track. Two fixing strips are symmetrically installed on the surface of the operating platform. A fixing strip is fixedly installed at the center of the bottom of the operating platform. The bottom of the base plate is movably connected to the surface of the base. The bottom of the base is fixedly installed on the operating area surface of the fume hood.

[0008] To ensure a stable supporting structure around the operating table when it rotates, as a laboratory fume hood of this utility model, preferably, the surface of the annular track is provided with an annular groove, and the bottom of the operating table is fixedly connected with a protruding column. Six protruding columns are installed at equal intervals at the bottom of the operating table, and all six protruding columns are movably installed inside the annular groove.

[0009] To ensure a stable connection between the operating table and the base, and to allow the operating table to rotate via the base, preferably, as a laboratory fume hood of this invention, the base has an inner cavity at its center end, a rotating component is movably installed inside the inner cavity, six locking posts are evenly spaced on the inner wall of the center end of the inner cavity, and twelve locking slots are evenly spaced on the outer wall of the center end of the rotating component, the top of the rotating component is fixedly connected to the bottom of the base plate, and the six locking posts are respectively connected to the six corresponding locking slots.

[0010] In order to fix the experimental tools placed on the operating table and prevent them from tipping over when the operating table is rotated, as a laboratory fume hood of this utility model, preferably, three three-stage telescopic rods are fixedly installed at equal intervals on one side of the fixing strip, springs are sleeved on the outer wall of the three-stage telescopic rods, the movable end of the three-stage telescopic rods is fixedly connected to the outer wall of one side of the connecting block, and a rubber block is fixedly glued to the other side of the connecting block.

[0011] The surface of the operating table is provided with a notch, and each of the three-stage telescopic rods is located at the upper end of the notch;

[0012] The bottom of the connecting block and the rubber block are movably connected to the surface of the operating table, and the width of the connecting block and the rubber block is greater than the opening width of the notch.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When in use, place the experimental equipment at the center of the operating table. The spring will then press the corresponding connecting block and rubber block back to the center, thus fixing the experimental equipment on the surface of the operating table. At this time, the experimenter can move the operating table as needed. The force of the movement will cause the rotating part to rotate inside the base through the bottom plate. In this way, the experimenter can adjust the angle of the entire equipment without adjusting the equipment itself. Thus, the above structure greatly improves the convenience of the experiment. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.

[0017] Figure 2 This is a cross-sectional structural diagram of the operating table connecting parts provided in an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the rotating component structure provided in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram showing the relative positional distribution of the annular track and the base provided in an embodiment of this application.

[0020] Figure 5 This is a top view of the control panel provided in an embodiment of this application.

[0021] Figure 6 This is a schematic diagram of the operating table structure from below, provided in an embodiment of this application.

[0022] In the diagram: 1. Fume hood; 2. Control panel; 3. Exhaust duct; 4. Circular track; 41. Circular groove; 5. Operating table; 51. Notch; 52. Protruding column; 6. Fixing strip; 61. Three-stage telescopic rod; 62. Spring; 63. Connecting block; 64. Rubber block; 7. Base plate; 8. Base; 81. Rotating component; 82. Bayonet; 83. Locking column; 84. Inner cavity. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 The present invention provides the following technical solution: a laboratory fume hood, including a fume hood 1, a control panel 2 installed on the surface of the fume hood 1, an exhaust pipe 3 installed on the top of the fume hood 1, and a ring track 4 installed on the surface of the operating area of ​​the fume hood 1;

[0025] When in use, the experimenters will place the experimental equipment on the operating table 5 in advance, and then close the sealed window on the surface of the fume hood 1. At this time, the gas generated by the reaction inside the experimental equipment will evaporate into the fume hood 1. Then the exhaust mechanism inside the fume hood 1 will exhaust the generated gas to the outside, thus ensuring that harmful gases will not directly evaporate into the laboratory after the fume hood 1 is opened.

[0026] Since this technology is an existing and mature technology, and the core of this technical solution is unrelated to it, this technical solution will not elaborate on it further.

[0027] The top of the circular track 4 is movably connected to the operating table 5. Two fixing strips 6 are symmetrically installed on the surface of the operating table 5. The fixing strip 6 is fixedly installed at the center of the bottom of the operating table 5. The bottom of the base plate 7 is movably connected to the surface of the base 8. The bottom of the base 8 is fixedly installed on the operating area surface of the fume hood 1.

[0028] Preferably, the surface of the annular track 4 is provided with an annular groove 41, and the bottom of the operating table 5 is fixedly connected with a protruding post 52. Six protruding posts 52 are installed at equal intervals at the bottom of the operating table 5, and all six protruding posts 52 are movably installed inside the annular groove 41.

[0029] In actual use, when the operating table 5 is rotated, the operating table 5 will drive the base plate 7 to rotate. When the base plate 7 rotates, it will drive the rotating part 81 to rotate. When the rotating part 81 rotates, it will drive the latch 82 on its surface to rotate. In this way, the latch 82 will disengage from the current latch 83.

[0030] After the angle of the operating table 5 is adjusted, the clamp 82 will align with the clamp post 83 at the current position, thus fixing the adjusted operating table 5 in the current position.

[0031] Preferably, the center end of the base 8 has an inner cavity 84, and a rotating component 81 is movably installed inside the inner cavity 84. Six locking posts 83 are installed at equal intervals on the inner wall of the center end of the inner cavity 84. Twelve locking slots 82 are installed at equal intervals on the outer wall of the center end of the rotating component 81. The top of the rotating component 81 is fixedly connected to the bottom of the base plate 7, and the six locking posts 83 are respectively connected to the six locking slots 82.

[0032] In practical use, the end of the locking post 83 is a semi-circular structure. The semi-circular end of the locking post 83 is inserted into the corresponding slot 82. The locking post 83 is made of flexible rubber, so that the rotating part 81 can rotate normally inside the base 8.

[0033] Preferably, three three-stage telescopic rods 61 are fixedly installed at equal intervals on one side of the fixing strip 6, and springs 62 are sleeved on the outer wall of the three-stage telescopic rods 61. The movable end of the three-stage telescopic rods 61 is fixedly connected to the outer wall of one side of the connecting block 63, and a rubber block 64 is fixedly adhered to the other side of the connecting block 63.

[0034] The surface of the control panel 5 is provided with a notch 51, and each three-stage telescopic rod 61 is located at the upper end of the notch 51.

[0035] The bottom of the connecting block 63 and the rubber block 64 are movably connected to the surface of the operating table 5, and the width of the connecting block 63 and the rubber block 64 is greater than the opening width of the notch 51.

[0036] In practical use, the experimenter must place the experimental equipment at the center of the operating table 5. This placement ensures that the spring 62 can fully function, pressing the connecting block 63 and rubber block 64 connected to it back to the center of the operating table 5. This process effectively fixes the experimental equipment, ensuring its stability and safety during the experiment.

[0037] At this point, the experimenter moves the control panel 5, and this operation is transmitted through the base plate 7 at the bottom of the control panel 5 to the rotating component 81, which in turn drives the rotating component 81 to rotate smoothly inside the base 8. This mechanism allows the experimenter to flexibly adjust the overall angle of the equipment without moving or readjusting it. Whether vertical observation or horizontal comparison is required, it can be easily achieved, greatly improving the flexibility and efficiency of experimental operations.

[0038] In conclusion, this stable and flexible design not only enhances the ease of operation for researchers conducting various experiments but also significantly improves work efficiency while ensuring experimental accuracy, providing strong support for scientific research and technological exploration.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A laboratory fume hood comprising a fume hood (1), a control panel (2) is mounted on the surface of the fume hood (1), an exhaust duct (3) is mounted on the top of the fume hood (1), characterized in that, The operating area surface of the fume hood (1) is provided with an annular track (4); The top of the annular track (4) is movably connected with an operating table (5), the surface of the operating table (5) is symmetrically provided with two fixed strips (6), the bottom center end of the operating table (5) is fixedly provided with a fixed strip (6), the bottom of the fixed strip (6) is movably connected with a bottom plate (7), the bottom of the bottom plate (7) is movably connected on the surface of a base (8), and the bottom of the base (8) is fixedly installed on the operating area surface of the fume hood (1).

2. A laboratory fume hood according to claim 1, characterized in that: The surface of the annular track (4) is provided with an annular groove (41), and the bottom of the operating table (5) is fixedly connected with a convex column (52).

3. A laboratory fume hood according to claim 2, characterized in that: Six convex columns (52) are installed at the bottom of the operating table (5) at equal intervals, and the six convex columns (52) are movably installed in the annular groove (41).

4. A laboratory hood according to claim 1, characterized in that: The center end of the base (8) is provided with an inner cavity (84), the inner cavity (84) is movably provided with a rotating piece (81), and the inner wall of the center end of the inner cavity (84) is provided with six clamping columns (83) at equal intervals.

5. A laboratory fume hood according to claim 4, characterized in that: The outer wall of the center end of the rotating piece (81) is provided with twelve clamping holes (82) at equal intervals, the top of the rotating piece (81) is fixedly connected with the bottom of the bottom plate (7), and the six clamping columns (83) are respectively connected with the corresponding six clamping holes (82).

6. A laboratory hood according to claim 1, wherein: The side of the fixed strip (6) is fixedly provided with three tertiary lifting and telescopic rods (61) at equal intervals, the outer wall of the tertiary lifting and telescopic rod (61) is sleeved with a spring (62), the movable end of the tertiary lifting and telescopic rod (61) is fixedly connected with the outer wall on one side of a connecting block (63), and the other side of the connecting block (63) is fixedly bonded with a rubber block (64). The surface of the operating table (5) is provided with a notch (51), and each tertiary lifting and telescopic rod (61) is arranged at the upper end of the notch (51).

7. A laboratory fume hood according to claim 6, characterized in that: The bottom of the connecting block (63) and the rubber block (64) is movably connected on the surface of the operating table (5), and the width of the connecting block (63) and the rubber block (64) is greater than the opening width of the notch (51).

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