Fuming cupboard for medicine safety production
By incorporating features such as a liftable cabinet, built-in exhaust duct, lighting, observation window, and sealed door into the fume hood, combined with sealing plates and locking components, the problem of leakage between the fume hood and the workbench was solved, achieving safety and airtightness in drug production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU BAIYUNSHAN PHARM CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-10
AI Technical Summary
There is a gap at the connection between the existing fume hood and the workbench, which leads to the leakage of harmful gases and creates a safety hazard.
The design features a height-adjustable cabinet, built-in exhaust duct, lighting, observation window, and sealed door. It is equipped with operating gloves, a sink, and a sealing plate. The operating table is secured by a locking assembly to ensure airtightness and prevent gas leakage.
Effectively sealing the connection between the fume hood and the workbench prevents the leakage of harmful gases, ensures the safety of drug production, and reduces safety risks.
Smart Images

Figure CN224101447U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of medicine production equipment, especially to a fume hood for medicine safe production. BACKGROUND
[0002] The fume hood, also known as a fume cabinet or a cabinet type exhaust hood, is widely used in biochemical experiments, pharmaceutical production, paint spraying, shot blasting and other work scenes prone to powder dispersion or atomized particle dispersion. The main working principle of the fume hood is to rely on a local exhaust system to remove harmful powder and atomized particles from the operating environment, that is, to directly remove pollutants from the local environment where the pollution source is located, so as to ensure the cleanliness of the air around the operating personnel and reduce the harm of harmful substances to the human body and the environment.
[0003] The patent with publication number CN211437404U discloses a fume hood for medicine safe production. The workbench has a workbench side edge. A sliding block is arranged below the fume hood and slides along the workbench side edge. The sliding block functions to constrain the movement of the fume hood on the surface of the workbench. Since the workbench side edges near both sides of the fume hood are designed with sliding blocks, the sliding of the fume hood can be ensured to be more reliable. A bristle that closely adheres to the surface of the workbench can be arranged below the fume hood. When the fume hood moves on the workbench, there is a gap between the fume hood and the workbench. In order to separate this gap, the harmful gas that needs to be extracted from the internal area of the fume hood during use does not escape to the surrounding environment. However, the above-mentioned device has the following defects when in use. Harmful gas is generated inside the fume hood during operation and needs to be removed through an air extraction system. There is a gap between the fume hood and the workbench. Although the bristle is arranged below, the bristle cannot completely and closely adhere to the surface of the fume hood and the workbench. This results in that part of the harmful gas can leak to the surrounding environment through these small gaps, forming a potential safety hazard.
[0004] Therefore, how to prevent harmful gas from leaking at the joint between the fume hood and the workbench and reduce potential safety risks has become a technical problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a fume hood for medicine safe production to overcome the above-mentioned shortcomings.
[0006] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows. A fume hood for medicine safe production comprises:
[0007] The fume hood comprises a fume hood body, a workbench, an air extraction system, a sealing door, a sliding block, a bristle, a sliding groove and a sealing door.
[0008] An operating glove is located in the cabinet and communicates with the operating port;
[0009] An operating table is slidably connected with the sliding groove, and an upper end of the operating table is provided with a water tank, and the water tank is provided with a drain port for connecting with an external drainage system;
[0010] An extension plate is connected with a side wall of the operating table, a side wall of the extension plate is connected with a sealing plate, the sealing plate is attached to a side wall of the cabinet, and the sealing plate is used for sealing a gap between the sliding groove and the operating table; and
[0011] A locking assembly is arranged on the side wall of the cabinet, and is used for operatively locking the relative movement of the operating table in the sliding groove.
[0012] Further, two first connecting grooves are oppositely arranged at a bottom of the sliding groove, two rows of rolling balls are oppositely arranged at a lower end of the operating table, the rolling balls are slidably connected with the first connecting grooves, and the sealing plate is attached to the first connecting grooves.
[0013] Further, a second connecting groove is arranged at a top of the sliding groove, a faucet is arranged at an upper end of the operating table, the second connecting groove is slidably connected with the faucet, a water outlet of the faucet is located above the water tank, the operating table is provided with a water inlet, two ends of the water inlet are respectively connected with the faucet and an external water source, and the sealing plate is attached to the second connecting groove.
[0014] Further, two limiting holes are oppositely arranged at a side wall of the operating table, a locking hole is arranged at a side wall of the cabinet, the limiting hole and the locking hole are oppositely arranged, the locking hole comprises an insertion section, a compression section and a sliding section, one end of the insertion section penetrates through the side wall of the cabinet and communicates with one end of the compression section, the other end of the compression section communicates with the sliding section, and one end of the locking assembly is slidably penetrated through the insertion section, the compression section and the sliding section and detachably inserted into the limiting hole.
[0015] Further, the locking assembly comprises a locking block, a locking rod, an end plate and a spring, one end of the locking rod is slidably penetrated through the insertion section, the compression section and the sliding section and fixedly connected with the locking block, the other end of the locking rod is fixedly connected with the end plate, the end plate abuts against the side wall of the cabinet, the locking rod is matched with the insertion section, the locking rod is provided with the spring at a circumferential side of the locking rod, and two ends of the spring are respectively fixedly connected with one end of the locking block and an end surface of the compression section, the end plate is pushed and pulled to drive the other end of the locking block to extend into and out of the limiting hole, and further to drive one end of the locking block to move away from and close to the end surface of the sliding section.
[0016] Further, the other end of the end plate away from the cabinet is provided with a pull ring.
[0017] Further, the side wall of the operating table is provided with a first handle.
[0018] Further, a sealing gasket is arranged at the operating port.
[0019] Further, the lower end of the cabinet is provided with a lifting support, the side wall of the lifting support is provided with a second handle, and the lower end of the lifting support is provided with a plurality of wheels.
[0020] The utility model has at least the following advantages compared with prior art: when using the fume hood for medicine safe production, first, the liftable cabinet can adjust height according to actual operation demand, the side wall exhaust pipe is connected to the exhaust system for discharging harmful gas generated in the fume hood, the inner wall is provided with the lighting lamp to provide sufficient illumination to ensure that the staff can clearly see the situation in the cabinet, the staff operates through the observation window on the sealing door and the operating port, the operating glove is connected to the operating port, and the hand can be operated flexibly in the cabinet after wearing, direct body contact with harmful environment is avoided, the upper end sink of the operating table is used for treating wastewater in the operation process, and the drain opening is connected to the external drainage system to ensure smooth drainage. The key is that the extension plate is connected with the side wall of the operating table, the sealing plate is attached to the extension plate and the side wall of the cabinet, the gap between the sealing plate and the operating table is tightly sealed, harmful gas leakage from the connecting part is prevented, the locking assembly can stably fix the operating table in the sliding groove, displacement of the operating table caused by vibration and other factors during operation is prevented, further gap change is avoided, the sealing effect is further ensured, harmful gas leakage from the connecting part of the fume hood and the workbench is effectively prevented, potential safety risk is reduced, and the medicine safe production environment is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without paying creative labor.
[0022] Figure 1 It is the whole structure schematic diagram of the utility model fume hood for medicine safe production;
[0023] Figure 2 It is the utility model fume hood for medicine safe production's section view;
[0024] Figure 3 It is the utility model cabinet and operating table's explosion map;
[0025] Figure 4 It is the utility model locking assembly, cabinet and operating table's section view.
[0026] Sign: 1, cabinet; 2, exhaust pipe; 3, light; 4, sliding groove; 5, sealing door; 51, observation window; 6, operation port; 7, operation gloves; 8, operation table; 9, sink; 10, drain; 11, extension plate; 12, sealing plate; 13, first connecting groove; 14, ball; 15, second connecting groove; 16, faucet; 17, water inlet; 18, limiting hole; 19, compression section; 20, sliding section; 21, locking block; 22, locking rod; 23, end plate; 24, spring; 25, pull ring; 26, first handle; 27, sealing washer; 28, lifting support; 29, second handle; 30, wheel. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0028] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0029] Reference Figures 1-3The utility model provides a fume hood for medicine safety production, include: liftable cupboard 1, the side wall of cupboard 1 is provided with exhaust pipe 2, exhaust pipe 2 is used for discharging the pollutant such as harmful gas, smoke of producing in the operation process, exhaust pipe 2 can be connected to the outside ventilation purification system to realize the subsequent processing of the exhaust gas, the inner wall of cupboard 1 is provided with one illumination lamp 3, left side, right side and the side wall of upper end all are provided with illumination lamp 3, these illumination lamp 3 can provide sufficient and even light in all directions, avoid the mistake of producing in the operation process due to insufficient light, ensure that the staff can clearly observe the operation details, in addition the side wall of cupboard 1 is provided with the sealed door 5 with observation window 51, sealed door 5 is made of the material with good sealing performance, can effectively block the air circulation in and out of cupboard 1, prevent pollutant leakage, observation window 51 is provided with two operation ports 6, the operation glove 7 in cupboard 1 is communicated with operation port 6, and the staff both hands respectively extend into operation port 6, and then extend into operation glove 7, realize the operation of the article in cupboard 1, such as taking medicine, operating experimental instrument etc, simultaneously operation glove 7 is made of the material with high strength of resisting chemical corrosion, for example fluorine rubber material, can resist the erosion of common medicine, chemical reagent, guarantee the hand safety of staff, and not easy to break in the frequent operation process, cupboard 1 is provided with the sliding slot 4 along the horizontal direction, and the operation table 8 is slidably connected with the sliding slot 4, and the upper end of the operation table 8 is provided with the water tank 9, the water tank 9 is provided with the drain 10, the drain 10 is used to connect with the external drainage system, and the wastewater generated in the operation process can be conveniently and timely discharged, the extension plate 11 connected with the side wall of the operation table 8, the side wall of the extension plate 11 is connected with the sealing plate 12, the sealing plate 12 is attached to the side wall of the cupboard 1, the sealing plate 12 is used to seal the gap between the sliding slot 4 and the operation table 8, to prevent the leakage of harmful gas and other pollutants from the gap, and the locking assembly arranged on the side wall of the cupboard 1 is used to lock the relative movement of the operation table 8 in the sliding slot 4, and the locking assembly can prevent the operation table 8 from being accidentally pulled out due to accidental touch.
[0030] Referring to Figure 3 The bottom of the sliding slot 4 is provided with two first connecting grooves 13, the lower end of the operation table 8 is provided with two rows of rolling balls 14, the rolling balls 14 are slidably connected with the first connecting grooves 13, which greatly reduces the friction of the operation table 8 when sliding, so that the staff can easily pull out or push back the operation table 8, and the sealing plate 12 is attached to the first connecting grooves 13.
[0031] The top of the sliding slot 4 is provided with a second connecting groove 15, the upper end of the operation table 8 is provided with a water faucet 16, the second connecting groove 15 is slidably connected with the water faucet 16, the water outlet of the water faucet 16 is located above the water tank 9, the operation table 8 is provided with a water inlet 17, the two ends of the water inlet 17 are respectively connected with the water faucet 16 and an external water source, and the sealing plate 12 is attached to the second connecting groove 15.
[0032] The side wall of the operation table 8 is oppositely provided with two limiting holes 18, which are respectively located near the two ends of the operation table 8. When the fume hood needs to be cleaned, the operation table 8 can be completely pulled out by the worker. The side wall of the cabinet body 1 is provided with a locking hole. The limiting hole 18 and the locking hole are oppositely arranged. The locking hole comprises an insertion section, a compression section 19 and a sliding section 20. One end of the insertion section penetrates through the side wall of the cabinet body 1 and communicates with one end of the compression section 19. The other end of the compression section 19 communicates with the sliding section 20. One end of the locking assembly sequentially slides through the insertion section, the compression section 19 and the sliding section 20 and is detachably inserted into the limiting hole 18.
[0033] With reference to Figure 4 , the locking assembly comprises a locking block 21, a locking rod 22, an end plate 23 and a spring 24. One end of the locking rod 22 is sequentially slid through the insertion section, the compression section 19 and the sliding section 20 and is fixedly connected with the locking block 21. The other end of the locking rod 22 is fixedly connected with the end plate 23. The end plate 23 abuts against the side wall of the cabinet body 1. The locking rod 22 is matched with the insertion end. The periphery of the locking rod 22 is provided with the spring 24. Both ends of the spring 24 are fixedly connected with one end of the locking block 21 and the end face of the compression section 19, respectively. The end plate 23 is pushed and pulled, thereby driving the other end of the locking block 21 to extend into and out of the limiting hole 18, and further driving one end of the locking block 21 to move away from and close to the end face of the sliding section 20. After the work is completed, the worker pulls out the operation table 8 completely and cleans the cabinet body 1 and the operation table 8. When the fume hood is idle, the worker can pull out the operation table 8 and fix it by the locking assembly, so as to use it as a temporary hand washing basin.
[0034] The other end of the end plate 23 away from the cabinet body 1 is provided with a pull ring 25. In the natural state, the elastic force of the spring 24 makes the other end of the locking block 21 extend into the limiting hole 18. When it needs to be unlocked, the worker pulls the end plate 23 outward through the pull ring 25, overcomes the elastic force of the spring 24, and drives the other end of the locking block 21 to extend out of the limiting hole 18, so as to release the locking of the operation table 8. This design effectively prevents the operation table 8 from being accidentally pulled out due to accidental touch, and ensures the safety and stability of the operation process.
[0035] With reference to Figure 1 , the side wall of the operation table 8 is provided with a first handle 26. The worker can more conveniently control the sliding action of the operation table 8 by holding the first handle 26.
[0036] The sealing gasket 27 is made of soft and elastic rubber material, which is closely attached to the connecting part of the operation port 6 and the operation glove 7, greatly improving the sealing performance of the connecting part, and preventing harmful gas from escaping from the gap.
[0037] The lower end of the cabinet 1 is provided with a lifting support 28, and the side wall of the lifting support 28 is provided with a second handle 29.
[0038] The working principle of the utility model is as follows: when in use, the required medicines and tools are placed on the operation table 8 in the cabinet 1, then the sealing door 5 is closed, and then the illuminating lamp 3 and the ventilation and purification system are opened synchronously.
[0039] The staff puts hands into the operation glove 7 through the operation port 6 to take medicines and operate instruments, and during this period, the harmful gas, smoke and other pollutants generated in the operation process are discharged through the exhaust pipe 2, and the waste water is discharged to the external drainage system through the drain outlet 10 of the water tank 9.
[0040] After the work is completed, the illuminating lamp 3 and the ventilation and purification system are closed, the sealing door 5 is opened to take out the articles in the cabinet 1, then the pull ring 25 is pulled, the pull ring 25 drives the end plate 23 to move outward, the spring 24 is overcome, the locking block 21 is extended out of the limiting hole 18, the locking of the operation table 8 is released, then the operation table 8 is pulled out to clean it.
[0041] When the device is idle, the locking block 21 can be extended into the limiting hole 18 at the tail end, at this time, the water tank 9 and the faucet 16 on the operation table 8 are pulled out of the cabinet 1, which can be used as a temporary hand washing basin at this time.
[0042] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.
[0043] The above-described embodiments are merely preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model shall fall within the protection scope defined by the claims of the utility model.
Claims
1. A fume hood for safe drug production, characterized in that, include: The liftable cabinet (1) has an exhaust pipe (2) on its side wall, at least one light (3) on its inner wall, a slide groove (4) on its horizontal direction, and a sealed door (5) with an observation window (51) on its side wall. The observation window (51) has at least one operating port (6). Operating gloves (7) are located inside the cabinet (1) and are connected to the operating port (6); The operating table (8) is slidably connected to the slide (4), and a water tank (9) is provided at its upper end. The water tank (9) is provided with a drain outlet (10), which is used to connect to an external drainage system. An extension plate (11) is connected to the side wall of the worktable (8), and its side wall is connected to a sealing plate (12). The sealing plate (12) is attached to the side wall of the cabinet (1). The sealing plate (12) is used to seal the gap between the slide (4) and the worktable (8). as well as A locking assembly, which is disposed on the side wall of the cabinet (1), is used to operably lock the relative movement of the operating table (8) within the slide (4).
2. The fume hood for safe drug production according to claim 1, characterized in that, The bottom of the slide (4) is provided with two first connecting grooves (13) facing each other, and the lower end of the operating table (8) is provided with two rows of balls (14) facing each other. The balls (14) and the first connecting grooves (13) are slidably connected, and the sealing plate (12) fits into the first connecting grooves (13).
3. The fume hood for safe drug production according to claim 1, characterized in that, The top of the chute (4) is provided with a second connecting groove (15), and the upper end of the operating table (8) is provided with a faucet (16). The second connecting groove (15) and the faucet (16) are slidably connected. The outlet of the faucet (16) is located above the water tank (9). The operating table (8) is provided with a water inlet (17). The two ends of the water inlet (17) are respectively connected to the faucet (16) and an external water source, and the sealing plate (12) is attached to the second connecting groove (15).
4. The fume hood for safe drug production according to claim 1, characterized in that, The side wall of the operating table (8) is provided with two limiting holes (18) facing each other, and the side wall of the cabinet (1) is provided with a locking hole. The limiting holes (18) and the locking holes are arranged opposite to each other. The locking hole includes an insertion section, a compression section (19) and a sliding section (20). One end of the insertion section passes through the side wall of the cabinet (1) and communicates with one end of the compression section (19). The other end of the compression section (19) communicates with the sliding section (20). One end of the locking component slides through the insertion section, the compression section (19) and the sliding section (20) in sequence and is detachably inserted into the limiting hole (18).
5. The fume hood for safe drug production according to claim 4, characterized in that, The locking assembly includes a locking block (21), a locking rod (22), an end plate (23), and a spring (24). One end of the locking rod (22) slides through the insertion section, the compression section (19), and the sliding section (20) in sequence and is fixedly connected to the locking block (21). The other end of the locking rod (22) is fixedly connected to the end plate (23). The end plate (23) abuts against the side wall of the cabinet (1). The locking rod (22) is adapted to the insertion end. A spring (24) is arranged around the locking rod (22). The two ends of the spring (24) are fixedly connected to one end of the locking block (21) and the end face of the compression section (19), respectively. Pushing and pulling the end plate (23) causes the other end of the locking block (21) to extend into and out of the limiting hole (18), thereby causing one end of the locking block (21) to move away from and closer to the end face of the sliding section (20).
6. The fume hood for safe drug production according to claim 5, characterized in that, A pull ring (25) is provided at the other end of the end plate (23) away from the cabinet body (1).
7. The fume hood for safe drug production according to any one of claims 1 to 6, characterized in that, The side wall of the control panel (8) is provided with a first handle (26).
8. The fume hood for safe drug production according to any one of claims 1 to 6, characterized in that, A sealing gasket (27) is provided at the operating port (6).
9. The fume hood for safe drug production according to any one of claims 1 to 6, characterized in that, The lower end of the cabinet body (1) is provided with a lifting bracket (28), the side wall of the lifting bracket (28) is provided with a second handle (29), and the lower end of the lifting bracket (28) is provided with several wheels (30).
Citation Information
Patent Citations
Fuming cupboard for safe production of medicines
CN211437404U