Laboratory fume hood window anti-falling system

Abstract

The utility model discloses a laboratory fume hood window anti-falling system which comprises a positioning round pin and a limiting round pin, the positioning round pin is fixedly connected to an anti-falling main body structural part, the limiting round pin is fixedly connected to the anti-falling main body structural part, the limiting round pin is attached to a limiting hole, and the limiting hole is formed in an anti-falling blocking piece; according to the anti-falling device, the anti-falling blocking piece rotates around the positioning round pin until the clamping piece is clamped on the anti-falling rack, the limiting round pin moves to the other side of the limiting hole at the moment, and the anti-falling blocking piece is further limited and fixed, so that the anti-falling blocking piece, the anti-falling main body structural piece and the movable window stop falling; the situation that when a synchronous belt or a steel wire for connecting the movable window and the counter weight of the laboratory fume hood is suddenly broken, the movable window rapidly falls down to smash operators or instruments and equipment is prevented, and the use safety of the equipment is improved; and meanwhile, the equipment is relatively simple in structure and convenient to maintain, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of fume hood window anti-fall technology, and in particular to a laboratory fume hood window anti-fall system. Background Technology

[0002] Laboratory fume hoods are common equipment in laboratories, used to remove harmful gases and vapors generated during experimental operations, ensuring the safety of laboratory personnel. The fume hood window, as an important component, plays a significant role. The window can be adjusted vertically, allowing laboratory personnel to adjust it according to actual needs and ensure smooth experimental operations. This design also facilitates lowering the window to its lowest operating height when no manual operation is required, effectively removing harmful gases, preventing leaks, and reducing energy consumption. However, existing laboratory fume hood windows still have shortcomings. First, if the synchronous belt or steel wire connecting the existing fume hood window and counterweight suddenly breaks, the moving window will fall rapidly, injuring operators or damaging equipment, resulting in insufficient safety. Second, there is a high requirement for the simplicity of the structure preventing the window from falling, making it easy to maintain and improving the user experience. Therefore, designing a laboratory fume hood window fall prevention system is essential. Utility Model Content

[0003] The purpose of this utility model is to provide a laboratory fume hood window anti-fall system to solve the problem that when the synchronous belt or steel wire connecting the window and the counterweight of the existing laboratory fume hood suddenly breaks, the moving window will fall rapidly and hit the operator or the equipment, resulting in insufficient safety of the equipment. It also addresses the high requirement for the structural simplicity of the anti-fall system to facilitate maintenance and improve the user experience.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a laboratory fume hood window anti-fall system, including a positioning pin and a limiting pin, wherein the positioning pin is fixedly connected to the anti-fall main structure, the limiting pin is fixedly connected to the anti-fall main structure, the limiting pin is fitted into a limiting hole, the limiting hole is opened on the anti-fall baffle, and the positioning pin is rotatably connected in the anti-fall baffle.

[0005] As a further technical solution of this utility model, the fall arrestor is provided with an adjustment process hole and a locking device.

[0006] As a further technical solution of this utility model, a connecting pin is fixedly connected to the fall arrestor plate, one end of a tension spring is fixedly connected to the connecting pin, and the other end of the tension spring is fixedly connected to a fixing post.

[0007] As a further technical solution of this utility model, the fixing column is fixedly connected to the main anti-fall structure, and the main anti-fall structure is fixedly connected with connecting bolts.

[0008] As a further technical solution of this utility model, the connecting bolt is fixedly connected to the movable window, the movable window is slidably connected to the chassis, and an anti-fall rack is fixedly connected to the chassis.

[0009] As a further technical solution of this utility model, a timing belt is provided on the chassis, and one end of the timing belt is fixedly connected to the connection port.

[0010] As a further technical solution of this utility model, the connection port is opened on the hook, and the hook is fixedly connected to the connecting pin.

[0011] This utility model provides a laboratory fume hood window anti-fall system, the advantages of which are: the main anti-fall structure is fixed to the chassis by connecting bolts; a synchronous belt provides moving support for the movable window; anti-fall racks are symmetrically installed on the chassis; and the main anti-fall structure is symmetrically installed on the movable window. The equipment is installed and adjusted through the process holes. During installation and adjustment, screws are tightened to prevent the anti-fall baffle from popping out and affecting the installation of the movable window. After installation, before using the equipment, the screws in the process holes are unscrewed to activate the anti-fall function. When the synchronous belt breaks unexpectedly, the movable window and the anti-fall structure fixed to it fall from the chassis. At this time, the synchronous belt releases its connection to the hook. The mechanism involves moving one end of the hook, connecting pin, and fall arrestor plate under the tension of a spring. This causes the fall arrestor plate to rotate around the positioning pin until the locking mechanism engages with the fall arrestor rack. At this point, the limiting pin moves to the other side of the limiting hole, further limiting and fixing the fall arrestor plate. The locking mechanism then engages with the fall arrestor rack, preventing the fall arrestor plate, the main fall arrestor structure, and the moving window from falling. This prevents the moving window from falling rapidly and hitting operators or equipment if the synchronous belt or steel wire connecting the laboratory fume hood and the counterweight suddenly breaks, thus improving equipment safety. Furthermore, the device has a simple structure, facilitating maintenance and improving the user experience. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of the local structure of region A in the middle;

[0015] Figure 3 for Figure 1 Enlarged view of the local structure of region B in the middle.

[0016] In the diagram: 1. Positioning pin; 2. Limiting pin; 3. Connecting pin; 4. Fixing post; 5. Tension spring; 6. Fall protection main structure; 7. Fall protection baffle; 8. Hook; 9. Synchronous belt; 10. Fall protection rack; 11. Moving window; 12. Adjustment process hole; 13. Limiting hole; 14. Clip; 15. Connecting bolt; 16. Connection port; 17. Chassis. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of a laboratory fume hood window anti-fall system, including a positioning pin 1 and a limiting pin 2. The positioning pin 1 is fixedly connected to the anti-fall main structure 6, and the limiting pin 2 is fixedly connected to the anti-fall main structure 6. The limiting pin 2 fits into a limiting hole 13, which is opened on an anti-fall baffle 7. The positioning pin 1 is rotatably connected to the anti-fall baffle 7. The anti-fall baffle 7 has an adjustment process hole 12, a clip 14, and a connecting pin 3. One end of a tension spring 5 is fixedly connected to the connecting pin 3. The other end of the spring 5 is fixedly connected to a fixing post 4, which is fixedly connected to the anti-fall main structure 6. The anti-fall main structure 6 is fixedly connected to a connecting bolt 15, which is fixedly connected to a movable window 11. The movable window 11 is slidably connected to the chassis 17. An anti-fall rack 10 is fixedly connected to the chassis 17. A synchronous belt 9 is provided on the chassis 17. One end of the synchronous belt 9 is fixedly connected to a connecting port 16. The connecting port 16 is used to connect the synchronous belt 9. The connecting port 16 is opened on a hook 8, which is fixedly connected to a connecting pin 3. The hook 8 is used to connect the synchronous belt 9 and the connecting pin 3.

[0020] Specifically, in use, firstly, the anti-fall main structure 6 is fixed to the movable window 11 using connecting bolts 15. The synchronous belt 9 provides movement support for the movable window 11. Anti-fall racks 10 are symmetrically installed on the chassis 17, and the anti-fall main structure 6 is symmetrically installed on the movable window 11. The equipment is then debugged and installed through the process adjustment hole 12. During installation and debugging, screws are tightened to prevent the anti-fall baffle 7 from popping out and affecting the installation of the movable window 11. After installation, before using the equipment, the screws in the process adjustment hole 12 are unscrewed, and the anti-fall function is activated. When the synchronous belt 9 unexpectedly breaks, the movable window 11 and the anti-fall main structure 6 fixed to it fall down the chassis 17. At this time, the synchronous belt 9 disconnects from the hook 8, allowing the hook 8 to... One end of the connecting pin 3 and the anti-fall plate 7 moves under the tension of the tension spring 5, causing the anti-fall plate 7 to rotate around the positioning pin 1 until the locking piece 14 is engaged with the anti-fall rack 10 and stops. At this time, the limiting pin 2 moves to the other side of the limiting hole 13 to further limit and fix the anti-fall plate 7. The locking piece 14 is engaged with the anti-fall rack 10, so that the anti-fall plate 7, the anti-fall main structure 6 and the moving window 11 stop falling. This prevents the moving window 11 from falling rapidly and hitting the operator or equipment if the synchronous belt 9 or steel wire connecting the laboratory fume hood and the counterweight suddenly breaks, thus improving the safety of equipment use. At the same time, the structure of the equipment is relatively simple, which is convenient for maintenance and improves the user experience.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fume hood window anti-falling system for laboratory, comprising a positioning round pin (1) and a limiting round pin (2), characterized in that: The positioning round pin (1) is fixedly connected to the anti-falling main body structure (6), the anti-falling main body structure (6) is fixedly connected to the limiting round pin (2), the limiting round pin (2) is attached to the limiting hole (13), the limiting hole (13) is arranged on the anti-falling baffle (7), and the anti-falling baffle (7) is rotatably connected to the positioning round pin (1).

2. A fume hood sash fall arrest system according to claim 1, wherein: The anti-falling baffle (7) is provided with a debugging process hole (12), and the anti-falling baffle (7) is provided with a clamping piece (14).

3. A fume hood vision panel fall arrest system according to claim 2, wherein: The anti-falling baffle (7) is fixedly connected to the connecting round pin (3), one end of the connecting round pin (3) is fixedly connected to the tension spring (5), and the other end of the tension spring (5) is fixedly connected to the fixed column (4).

4. A fume hood vision panel fall arrest system according to claim 3, wherein: The fixed column (4) is fixedly connected to the anti-falling main body structure (6), and the anti-falling main body structure (6) is fixedly connected to the connecting bolt (15).

5. A fume hood vision panel fall arrest system according to claim 4, wherein: The connecting bolt (15) is fixedly connected to the movable window (11), the movable window (11) is slidably connected to the case (17), and the case (17) is fixedly connected to the anti-falling rack (10).

6. A fume hood vision panel fall arrest system according to claim 5, wherein: The case (17) is provided with a synchronous belt (9), one end of the synchronous belt (9) is fixedly connected to the connecting port (16).

7. A fume hood vision panel fall arrest system according to claim 6, wherein: The connecting port (16) is arranged on the hook (8), and the hook (8) is fixedly connected to the connecting round pin (3).

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