A high-efficiency ventilation structure for a drug synthesis fume hood

Abstract

This utility model relates to the field of pharmaceutical synthesis fume hoods, and discloses a high-efficiency ventilation structure for a pharmaceutical synthesis fume hood, including a ventilation mechanism and a housing. The ventilation mechanism includes a fixed frame, a fan, multiple baffles, multiple electric push rods, multiple locking blocks, and multiple fixed shafts. Each of the multiple baffles has a bracket fixedly connected to its outer wall at the end furthest from the housing. Each of the multiple brackets has a collar rotatably connected to its outer wall. The output ends of the multiple electric push rods are fixedly connected to the outer walls of the multiple collars. The front and rear outer walls of the multiple baffles are slidably connected to the inner wall of the housing near the fixed frame. The end of the fixed frame near the housing is fixedly connected to the end of the housing near the fixed frame. The fan is fixedly mounted on the inner wall of the fixed frame at the end furthest from the housing, and a motor is fixedly connected to the center of the rear end of the fan. In this utility model, the ventilation mechanism can more quickly remove harmful gases from inside the housing.

Description

Technical Field

[0001] This utility model relates to the field of drug synthesis fume hoods, and in particular to a high-efficiency ventilation structure for drug synthesis fume hoods. Background Technology

[0002] A pharmaceutical synthesis fume hood is a specialized ventilation system used in pharmaceutical synthesis laboratories. The suction generated by a fan draws air into the fume hood through its openings, carrying away harmful gases, vapors, particles, and other contaminants produced during the experiment. The air is then exhausted through exhaust ducts.

[0003] In the process of realizing this application, the inventors discovered the following problems with the prior art: the existing efficient ventilation structure of the drug synthesis fume hood generally introduces air into the cabinet through the air inlet to remove the harmful gases inside. However, the existing ventilation structure only introduces air through one air inlet, which has a low efficiency in exhausting gases that are off the air inlet. In addition, the flow rate of harmful gases inside the existing cabinet is slow, and the exhaust is slow.

[0004] Therefore, those skilled in the art have provided a highly efficient ventilation structure for a drug synthesis fume hood to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly efficient ventilation structure for a pharmaceutical synthesis fume hood, which can more quickly remove harmful gases from inside the casing through the ventilation mechanism.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency ventilation structure for a drug synthesis exhaust cabinet, comprising a ventilation mechanism and a housing. The ventilation mechanism includes a fixed frame, a fan, multiple baffles, multiple electric push rods, multiple locking blocks, and multiple fixed shafts. Each of the multiple baffles has a bracket fixedly connected to its outer wall away from the housing. Each of the multiple brackets has a collar rotatably connected to its outer wall. The output ends of the multiple electric push rods are fixedly connected to the outer walls of the multiple collars. The front and rear outer walls of the multiple baffles are slidably connected to the inner wall of the housing near the fixed frame. The end of the fixed frame near the housing is fixedly connected to the end of the housing near the fixed frame.

[0007] Furthermore, the fan is fixedly mounted on the inner wall of the fixed frame at the end away from the housing, and a motor is fixedly connected to the center of the rear end of the fan.

[0008] Furthermore, each of the inner walls of the baffles is fixedly connected to a long shaft, and the front and rear ends of the long shafts are rotatably disposed on the inner wall of the housing near the fixed frame.

[0009] Furthermore, each of the multiple electric push rods has a rotating block fixedly connected to its end away from the output end, and the inner wall of each rotating block is fixedly connected to the outer wall of the fixed shaft.

[0010] Furthermore, the multiple card blocks are arranged in pairs, forming multiple groups, and the front and rear outer walls of the multiple fixed shafts are all embedded and rotatably disposed on the inner walls of the multiple groups of card blocks.

[0011] Furthermore, the multiple card blocks are fixedly connected to the outer wall of the housing near the end of the housing near the fixed frame.

[0012] Furthermore, multiple exhaust pipes are fixedly connected to the inner wall of the end of the housing away from the fixed frame.

[0013] This utility model has the following beneficial effects: 1. This utility model proposes a high-efficiency ventilation structure for a pharmaceutical synthesis fume hood. Toxic gases generated during pharmaceutical synthesis rise from multiple vents inside the housing. An electrical signal from a controller activates a fan, drawing outside air into the housing. The air inlet on the right side of the housing is divided into upper and lower sections, allowing outside air to enter and carry the toxic gases out through multiple exhaust pipes. The upper and lower air inlets can quickly expel gases at different heights inside the housing. Multiple electric push rods move the collar and bracket towards the center of the two openings, adjusting the gap between the two baffles to increase the airflow speed inside the housing, enabling harmful gases to be quickly discharged from the exhaust pipes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a partial structural diagram of the present invention.

[0015] Legend: 1. Ventilation mechanism; 2. Housing; 3. Exhaust pipe; 101. Fixing frame; 102. Fan; 103. Baffle; 104. Bracket; 105. Locking block; 106. Electric push rod; 107. Fixing shaft; 108. Rotating block; 109. Collar; 110. Long shaft. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-4 This utility model provides an embodiment of a high-efficiency ventilation structure for a drug synthesis exhaust cabinet, comprising a ventilation mechanism 1 and a housing 2. The ventilation mechanism 1 includes a fixed frame 101, a fan 102, multiple baffles 103, multiple electric push rods 106, multiple locking blocks 105, and multiple fixed shafts 107. Each of the multiple baffles 103 has a bracket 104 fixedly connected to the outer wall of the end away from the housing 2. Each of the multiple brackets 104 has a collar 109 rotatably connected to the outer wall of the multiple electric push rods 106. The output ends of the multiple electric push rods 106 are fixedly connected to the outer walls of the multiple collars 109. The front and rear end outer walls of the multiple baffles 103 are slidably connected to the inner wall of the housing 2 near the fixed frame 101. The end of the fixed frame 101 near the housing 2 is fixedly connected to the end of the housing 2 near the fixed frame 101.

[0018] Specifically, the drug is placed inside the bottom of the housing 2 for drug synthesis. The toxic gas generated during drug synthesis rises from multiple vents inside the housing 2. The controller sends an electrical signal to start the fan 102, which draws outside air into the housing 2. The air inlet on the right side of the housing 2 is divided into upper and lower sections, allowing outside air to enter through the two inlets. The toxic gas at different heights inside the housing 2 is then quickly discharged from multiple exhaust pipes 3. The controller sends an electrical signal to start multiple electric push rods 106, which push the collar 109 and the bracket 104 toward the center of the two openings. At the same time, the collar 109 rotates along the outer wall of the bracket 104. Simultaneously, the rotating blocks 108 at the rear of the multiple electric push rods 106 drive the fixed shaft 107 to rotate toward the end of the multiple locking blocks 105 away from the housing 2, adjusting the gap between the two baffles 103 to increase the airflow speed inside the housing 2, allowing the harmful gas inside the housing 2 to be quickly discharged from the exhaust pipes 3. The housing 2 is a drug synthesis fume hood.

[0019] Reference Figures 1-4The fan 102 is fixedly mounted on the inner wall of the fixed frame 101 away from the housing 2. A motor is fixedly connected to the center of the rear end of the fan 102. Long shafts 110 are fixedly connected to the inner walls of multiple baffles 103. The front and rear ends of the multiple long shafts 110 are rotatably mounted on the inner wall of the housing 2 near the fixed frame 101. Rotary blocks 108 are fixedly connected to the ends of multiple electric push rods 106 away from the output end. The inner walls of the multiple rotating blocks 108 are fixedly connected to the outer walls of the fixed shafts 107. Multiple locking blocks 105 are divided into multiple groups in pairs. The front and rear outer walls of the multiple fixed shafts 107 are embedded and rotatably mounted on the inner walls of the multiple groups of locking blocks 105. The ends of the multiple locking blocks 105 near the housing 2 are fixedly connected to the outer walls of the housing 2 near the fixed frame 101. Multiple exhaust pipes 3 are fixedly connected to the inner wall of the end of the housing 2 away from the fixed frame 101.

[0020] Specifically, the motor can provide power to the fan 102. The motor is fixed to the inner wall of the fan 102 through the vertical plate. Multiple baffles 103 are connected to the housing 2 through multiple long shafts 110. The rotating block 108 can drive the fixed shaft 107 and the electric push rod 106 to rotate along the inner wall of the locking block 105 away from the housing 2, adjusting the angle of the electric push rod 106 when working to prevent the electric push rod 106 from jamming. Multiple exhaust pipes 3 are connected to the external disinfection equipment through pipes.

[0021] Working principle: The drug is put into the interior of the housing 2 through the door panel at the bottom front end of the housing 2 for drug synthesis. The toxic gas generated during drug synthesis floats upward from multiple vents inside the housing 2. At this time, the interior of the housing 2 contains toxic gas. The electrical signal sent by the controller starts the fan 102. The motor at the rear end of the fan 102 drives the fan 102 to rotate, drawing outside air into the interior of the housing 2. Because the air inlet on the right end of the housing 2 is divided into upper and lower parts, outside air can enter through the upper and lower air inlets on the right end, and the toxic gas inside the housing 2 is carried out through multiple exhaust pipes 3. The upper and lower air inlets can quickly discharge the gas at different heights inside the housing 2. Secondly, the controller sends an electrical signal to activate multiple electric push rods 106. The output ends of the multiple electric push rods 106 push the collar 109 and the bracket 104 to move towards the center of the two openings. At the same time, the collar 109 rotates along the outer wall of the bracket 104. Meanwhile, the rotating block 108 at the rear end of the multiple electric push rods 106 also drives the fixed shaft 107 to rotate towards the end of the multiple locking blocks 105 away from the housing 2, adjusting the gap between the two baffles 103 and increasing the airflow speed inside the housing 2. The multiple fixed shafts 107 are embedded in the inner wall of the locking blocks 102 at the front and rear ends, so that the harmful gases inside the housing 2 can be quickly discharged from the exhaust pipe 3.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet, comprising a ventilation mechanism (1) and a shell (2), characterized in that: The ventilation mechanism (1) includes a fixed frame (101), a fan (102), multiple baffles (103), multiple electric push rods (106), multiple locking blocks (105), and multiple fixed shafts (107). Each of the multiple baffles (103) has a bracket (104) fixedly connected to the outer wall of the end away from the housing (2). Each of the multiple brackets (104) has a collar (109) rotatably connected to the outer wall of the multiple electric push rods (106). The output end of the multiple electric push rods (106) is fixedly connected to the outer wall of the multiple collars (109). The front and rear end outer walls of the multiple baffles (103) are slidably connected to the inner wall of the housing (2) near the fixed frame (101). The end of the fixed frame (101) near the housing (2) is fixedly connected to the end of the housing (2) near the fixed frame (101).

2. The high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet according to claim 1, characterized in that: The fan (102) is fixedly installed on the inner wall of the fixed frame (101) away from the housing (2), and a motor is fixedly connected to the center of the rear end of the fan (102).

3. The high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet according to claim 1, characterized in that: Each of the baffles (103) has a long shaft (110) fixedly connected to its inner wall. The front and rear ends of the long shafts (110) are rotatably disposed on the inner wall of the housing (2) near the fixed frame (101).

4. The high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet according to claim 1, characterized in that: Each of the multiple electric push rods (106) has a rotating block (108) fixedly connected to the end away from the output end, and the inner wall of the multiple rotating blocks (108) is fixedly connected to the outer wall of the fixed shaft (107).

5. The high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet according to claim 1, characterized in that: Multiple card blocks (105) are arranged in pairs, forming multiple groups. The front and rear outer walls of multiple fixed shafts (107) are embedded and rotatably disposed on the inner walls of multiple groups of card blocks (105).

6. The high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet according to claim 1, characterized in that: The multiple card blocks (105) are fixedly connected to the outer wall of the housing (2) near the fixed frame (101).

7. The high-efficiency ventilation structure of a pharmaceutical synthesis exhaust cabinet according to claim 1, characterized in that: Multiple exhaust pipes (3) are fixedly connected to the inner wall of the end of the housing (2) away from the fixed frame (101).

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