Intelligent control ventilation cabinet

Abstract

The utility model discloses an intelligent control ventilation cabinet, which relates to the technical field of ventilation cabinets and comprises a cabinet body, a roller shutter door, a transmission system and a control system. The cabinet body is provided with an operation space and an operation opening, the operation opening is communicated with the operation space and the outside, the cabinet body comprises a protruding part, and the protruding part is arranged on the upper portion of the operation opening, extends outwards and is used for increasing the size of the installation space of the cabinet body; the roller shutter door is arranged in the cabinet body, can be curled or unfolded relative to the cabinet body and is used for closing or opening the operation opening; the transmission system is connected with the roller shutter door, is mounted in the mounting space and is used for curling or unfolding the roller shutter door; the control system is connected with the transmission system, installed in the installation space and used for controlling the transmission system to drive the roller shutter door. The installation space is increased through the protruding parts protruding outwards, so that the installation height of the ventilation cabinet is reduced, and the application scene of the ventilation cabinet is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fume hoods, and in particular to an intelligently controlled fume hood. Background Art

[0002] Fume hoods are usually used in laboratories and other places where dangerous and harmful gases are involved. Their main function is to ventilate and exhaust gases, allowing gases to circulate inside the hood to avoid leakage outside the hood, in order to protect the safety of users and prevent the spread of pollutants. Fume hoods can remove various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances generated during experimental operations, thereby ensuring the environmental safety of relevant personnel during operations.

[0003] Utility model patent announcement number CN217726583U discloses a ventilation test cabinet, including a support platform and a cover body, the cover body is arranged on the support platform, a containing cavity is arranged in the cover body, and an opening connected to the containing cavity is provided on the cover body, a rolling door is arranged on the cover body, the rolling door can be unfolded or curled relative to the cover body, and the rolling door closes the opening after unfolding or releases the closure of the opening after curling, and an air exhaust port is also arranged on the cover body, and the air exhaust port is connected to the containing cavity; the ventilation test cabinet has the advantages of reasonable structure, convenient use and safety. However, since the control device of the rolling door and the exhaust device and other equipment need to be installed on the top of the fume hood, a large installation space is required, and therefore a high installation height is required. If the installation space height is small, it will make the fume hood difficult to install, and the applicability of the fume hood is poor. Summary of the invention

[0004] In order to solve the problem that the fume hood requires a higher installation height, the present application provides a fume hood that can only be controlled.

[0005] The intelligent control fume hood provided in this application adopts the following technical solution:

[0006] An intelligent controlled fume hood comprises:

[0007] The cabinet has an operation space and an operation port, the operation port connects the operation space and the outside, and the cabinet includes a protrusion, which is arranged on the upper part of the operation port and extends outward to increase the installation space size of the cabinet;

[0008] The rolling door is arranged in the cabinet body and can be rolled or unfolded relative to the cabinet body to close or open the operation port;

[0009] A transmission system connected to the rolling door, installed in the installation space, and used for rolling up or unfolding the rolling door;

[0010] The control system is connected to the transmission system and installed in the installation space, and is used to control the transmission system to drive the rolling door.

[0011] By adopting the above technical solution, the cabinet body is the main structure of the fume hood, and the operator can perform operations involving harmful and dangerous gases in the operating space through the operation port. The installation space is used to install the transmission system, control system, exhaust device and other auxiliary devices, which requires a larger installation space. The installation space is increased by the outward protruding protrusions, thereby reducing the installation height of the fume hood, which is beneficial to improving the applicable scenarios of the fume hood. By using the rolling shutter door, the space required for the rolling shutter door to be opened can be reduced, and the control system can control the opening and closing of the rolling shutter door to avoid manual pushing and pulling of the rolling shutter door, making the operation of the fume hood more stable.

[0012] Optionally, the cabinet further comprises an electromechanical maintenance panel, which can be removed from the main body of the cabinet to expose the transmission system and the control system.

[0013] By adopting the above technical solution, the electromechanical maintenance panel can be removed from the cabinet body. When the electromechanical maintenance team removes it, the transmission system and control system can be exposed, thereby facilitating the maintenance or care of the transmission system and control system of the fume hood, which is beneficial to ensuring the stability of the fume hood during long-term use.

[0014] Optionally, the rolling door includes a plurality of glass frames and a plurality of tempered glasses, the tempered glasses are arranged in the glass frames, and the plurality of glass frames are rotatably connected in sequence.

[0015] By adopting the above technical solution, tempered glass is used as the main structure of the rolling door, so that when the rolling door is closed, the situation in the operating space can be observed through the tempered glass, and because the rolling door needs to be relatively rotated and rolled up, adjacent glass frames can be rotatably connected to each other, so that the tempered glass can be rolled up as a rolling door of the fume hood.

[0016] Optionally, the glass frame further includes a frame and a connector, wherein the frame is for installing the tempered glass, and the connector is rotatably connected to adjacent frames.

[0017] By adopting the above technical solution, adjacent frames are rotatably connected through connecting parts, so that the adjacent frames can rotate relative to each other during the rolling or spreading process, so that the tempered glass fixed in the frame can be rolled up and spread out, while serving the function of observation and operation space, reducing the installation space required for the rolling door.

[0018] Optionally, the transmission system includes a motor, a transmission chain and a rotating shaft assembly, the motor is arranged on the cabinet, the rotating shaft assembly is connected to the rolling door, and the transmission chain connects the motor and the rotating shaft assembly.

[0019] By adopting the above technical solution, the rotating shaft assembly is connected to the rolling shutter door, which is used to roll up or spread out the rolling shutter door. The rotating shaft assembly is controlled by a motor-driven transmission chain to realize automatic control of the rolling shutter door, making the opening and closing of the rolling shutter door more stable and avoiding uneven force manual switching to generate a large load on the rolling shutter door.

[0020] Optionally, the rotating shaft assembly includes a rotating shaft, a fixed shaft and a gravity spring, the rotating shaft is respectively connected to the rolling door and the transmission chain, the fixed shaft is connected to the cabinet, the gravity spring connects the rotating shaft and the fixed shaft, and the gravity spring and the rotating shaft are sequentially sleeved on the outer periphery of the fixed shaft.

[0021] By adopting the above technical solution, the rotating shaft can rotate relative to the fixed shaft, and the rotating shaft and the fixed shaft are connected by a bearing, so that the fixed shaft can support the rotating shaft. The rotating shaft is driven by the transmission chain to roll up or spread out the rolling door, and the gravity spring is installed between the rotating shaft and the fixed shaft and connects the rotating shaft and the fixed shaft. The gravity spring can offset part of the gravity exerted on the rolling door, so that the transmission system can withstand a smaller load when driving the rolling door, and when the transmission system is damaged and the rolling door slides and unfolds, the gravity spring can provide a certain pulling force to cushion the impact of the rolling door on the cabinet body, thereby improving the safety of the fume hood.

[0022] Optionally, the rotating shaft assembly also includes a connecting shaft, and a rotating shaft is respectively provided at both ends of the connecting shaft.

[0023] By adopting the above technical solution, a connecting shaft is added in the middle of the rotating shaft assembly so that the rotating shaft is divided into two and respectively connected to the rolling door and the transmission chain. On the one hand, the length of the rotating shaft is reduced, which can improve the supporting role of the fixed shaft for the rotating shaft and avoid the rotating shaft being too long, which causes the middle part of the rotating shaft to bear a larger load. On the other hand, by controlling the length of the connecting shaft, the rotating shaft assembly can be suitable for rolling doors of different widths, thereby avoiding changing the sizes of other components, which is beneficial to improving the applicability of the rotating shaft assembly.

[0024] Optionally, the control system includes a control mainboard, a sensor and an interactive controller. The control mainboard is connected to the motor, and the sensor and the interactive controller are electrically connected to the control mainboard respectively. The sensor is arranged on the outside of the protrusion, and the interactive controller is arranged on the outside of the cabinet.

[0025] By adopting the above technical solution, the sensor can sense whether there is any obstruction at the operating port. When the rolling shutter door is unfolded and descended, if there are debris at the operating port or an operator is operating, the sensor can sense the obstruction and stop the rolling shutter door from continuing to fall. The interactive controller is used to manually control the opening and closing of the rolling shutter door, making the control of the fume hood more convenient.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The installation space is increased by the protruding part protruding outward, thereby reducing the installation height of the fume hood, which is beneficial to improving the applicable scenarios of the fume hood. By using the rolling shutter door, the storage space required when the rolling shutter door is opened can also be reduced. The control system can control the opening and closing of the rolling shutter door to avoid manual pushing and pulling of the rolling shutter door, making the operation of the fume hood more stable;

[0028] 2. Use tempered glass as the main structure of the rolling door, so that when the rolling door is closed, the situation in the operating space can be observed through the tempered glass. And because the rolling door needs to be relatively rotated and rolled up, the adjacent glass frames can be rotated and connected to each other, so that the tempered glass can be rolled up as the rolling door of the fume hood;

[0029] 3. The gravity spring is installed between the rotating shaft and the fixed shaft, and connects the rotating shaft and the fixed shaft. The gravity spring can offset part of the gravity on the rolling door, so that the transmission system can withstand a smaller load when driving the rolling door. When the transmission system is damaged and the rolling door slides and unfolds, the gravity spring can provide a certain pulling force to cushion the impact of the rolling door on the cabinet body and improve the safety of the fume hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the exploded structure of the shaft assembly of an embodiment of the present application;

[0033] Figure 4 It is a schematic diagram of the exploded structure of the rolling shutter door according to the embodiment of the present application.

[0034] Figure numerals: 1. cabinet; 11. protrusion; 12. electromechanical maintenance panel; 13. operating space; 14. operating port; 2. rolling door; 21. tempered glass; 22. glass frame; 221. frame; 222. connector; 223. screw; 3. transmission system; 31. motor; 32. transmission chain; 33. shaft assembly; 331. rotating shaft; 332. fixed shaft; 333. gravity spring; 334. bearing; 335. moving shaft gear sleeve; 336. limit baffle; 337. connecting plate; 34. connecting shaft; 4. control system; 41. control main board; 42. sensor; 43. interactive controller. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 To Attachment Figure 4 , further details of this application are given.

[0036] Example 1: An intelligent control fume hood, referring to Figure 1 , including a cabinet 1, a rolling door 2, a transmission system 3 and a control system 4. The cabinet 1 is the main structure of the fume hood. An operation space 13 is vacated in the middle of the cabinet 1 for operations involving harmful and dangerous gases. The harmful gases are discharged through the fume hood to avoid leakage outside the fume hood. The operation space 13 is connected to the outside through an operation port 14. The rolling door 2 can close or open the operation port 14. The installation space 15 is located at the upper part of the cabinet 1. The upper part of the cabinet 1 is a protrusion 11 extending outward, which is used to increase the size of the installation space 15, so that the fume hood can be installed without excessive vertical space. The transmission system 3 is arranged in the installation space 15, and is partially located in the protrusion 11. The transmission system 3 can roll up or unfold the rolling door 2. The transmission system 3 includes a motor 31, a transmission chain 32 and a shaft assembly 33. The transmission chain 32 is driven by the motor 31 to drive the shaft assembly 33 to rotate. The control system 4 includes a control main board 41, which is also arranged in the installation space 15 and is used to control the motor 31, thereby controlling the opening and closing of the rolling door 2. The cabinet 1 also includes an electromechanical maintenance panel 12, which is arranged at the top of the cabinet 1 and is used to open the installation space 15 above the cabinet 1, so as to repair or maintain the transmission system 3 and the control main board 41. The control system 4 also includes a sensor 42 and an interactive controller 43. The sensor 42 is arranged on the surface of the protrusion 11 and is used to detect whether there is an object that hinders the closing of the rolling door 2 at the operation port 14. When there are sundries at the operation port 14 or an operator is operating, the sensor 42 can sense the obstructing object to stop the rolling door 2 from continuing to fall. The interactive controller 43 is installed on the side wall of the cabinet 1 and is used to manually control the opening and closing of the rolling door, making the control of the fume hood more convenient.

[0037] Referring to the figure, the rolling door 2 includes a tempered glass 21 and a glass frame 22. Several pieces of tempered glass 21 are respectively arranged in several glass frames 22. Several glass frames 22 are rotated and connected in sequence, so that the tempered glass 21 is connected to form a structure that can be rolled up and collected. By providing the tempered glass 21, the situation in the operating space 13 can be observed from the outside when the rolling door 2 is closed, avoiding opening for observation and causing leakage of harmful and dangerous gases. The glass frame 22 includes a frame 221, a connecting piece 222 and a screw 223. The frame 221 is used to frame and fix the tempered glass 21, and the connecting piece 222 is connected to the adjacent frame 221 by the screw 223. The connecting piece 222 can rotate relative to the frame 221, so that the adjacent glass frames 22 can rotate relatively.

[0038] Referring to the figure, the transmission system 3 also includes a connecting shaft 34, and the rotating shaft assembly 33 includes a rotating shaft 331, a fixed shaft 332, a gravity spring 333, a bearing 334, a movable shaft gear sleeve 335, a limit baffle 336 and a connecting piece 337. There are two fixed shafts 332, one end of which is connected to the cabinet 1, and the other end is connected to the connecting shaft 34. The rotating shaft 331 is connected to the outer side of the fixed shaft 332 through the bearing 334 and the sleeve, and can rotate relative to the fixed shaft 332. The movable shaft gear sleeve 335 is connected to the rotating shaft 331, so that the transmission chain 32 can drive the rotating shaft 331 to rotate through the movable shaft gear sleeve 335. A gravity spring 333 is connected between the rotating shaft 331 and the fixed shaft 332, and the gravity spring 333 can offset part of the gravity that the rotating shaft 331 needs to bear, thereby reducing the driving load of the motor 31. The connecting shaft 34 is arranged in the middle of the rotating shaft assembly 33, so that the rotating shaft 331 is divided into two parts to connect the two ends of the rolling door 2, thereby avoiding excessive rotation load on the middle part of the integrated rotating shaft 331. The limit baffle 336 is connected to both sides of the rolling door 2 to limit the rotating shaft assembly 33 within the range of the rolling door 2, thereby ensuring the normal operation of the fume hood.

[0039] The implementation principle of the embodiment of the present application is: when the fume hood needs to be used, the interactive controller 43 is connected to the control main board 41 to control the motor 31 to rotate, so that the rolling door 2 is rolled up or unfolded through the rotation of the shaft assembly 33. When the rolling door 2 is closed, the sensor 42 will sense whether there is an obstruction at the operation port 14 to prevent the rolling door 2 from being blocked and damaged when it is closed. After the rolling door 2 is closed, the operator can observe the state of the operating space 13 through the tempered glass 21 through the rolling door 2, thereby avoiding frequent opening and closing of the rolling door 2 and preventing excessive overflow of harmful and dangerous gases.

[0040] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent control fume hood, characterized in that: include: A cabinet (1) having an operating space (13) and an operating port (14), wherein the operating port (14) is in communication with the operating space (13) and the outside, and wherein the cabinet (1) comprises a protrusion (11), wherein the protrusion (11) is disposed above the operating port (14) and extends outwardly, and is used to increase the size of the installation space of the cabinet (1); A rolling door (2) is arranged in the cabinet (1) and can be rolled up or unfolded relative to the cabinet (1) to close or open the operating port (14); A transmission system (3), connected to the rolling door (2), installed in the installation space, and used for rolling up or unfolding the rolling door (2); A control system (4) is connected to the transmission system (3), installed in the installation space, and is used to control the transmission system (3) to drive the rolling door (2).

2. The intelligent control fume hood according to claim 1, characterized in that: The cabinet (1) further comprises an electromechanical maintenance panel (12), wherein the electromechanical maintenance panel (12) can be removed from the main body of the cabinet (1) to expose the transmission system (3) and the control system (4).

3. The intelligent control fume hood according to claim 1, characterized in that: The rolling shutter door (2) comprises a plurality of glass frames (22) and a plurality of tempered glasses (21); the tempered glasses (21) are arranged in the glass frames (22); and the plurality of glass frames (22) are rotatably connected in sequence.

4. The intelligent control fume hood according to claim 3, characterized in that: The glass frame (22) further comprises a frame (221) and a connecting piece (222), wherein the frame (221) is used for mounting the tempered glass (21), and the connecting piece (222) is rotatably connected to adjacent frames (221) by means of screws.

5. The intelligent control fume hood according to claim 1, characterized in that: The transmission system (3) comprises a motor (31), a transmission chain (32) and a rotating shaft assembly (33); the motor (31) is arranged on the cabinet (1); the rotating shaft assembly (33) is connected to the rolling door (2); and the transmission chain (32) connects the motor (31) and the rotating shaft assembly (33).

6. The intelligent control fume hood according to claim 5, characterized in that: The rotating shaft assembly (33) comprises a rotating shaft (331), a fixed shaft (332) and a gravity spring (333); the rotating shaft (331) is respectively connected to the rolling door (2) and the transmission chain (32); the fixed shaft (332) is connected to the cabinet (1); the gravity spring (333) is connected to the rotating shaft (331) and the fixed shaft (332); and the gravity spring (333) and the rotating shaft (331) are sequentially sleeved on the periphery of the fixed shaft (332).

7. The intelligent control fume hood according to claim 5, characterized in that: The transmission system (3) further comprises a connecting shaft (34), with each end of the connecting shaft (34) being connected to one of the rotating shaft assemblies (33).

8. The intelligent control fume hood according to claim 5, characterized in that: The control system (4) comprises a control mainboard (41), a sensor (42) and an interactive controller (43); the control mainboard (41) is connected to the motor (31); the sensor (42) and the interactive controller (43) are respectively electrically connected to the control mainboard (41); the sensor (42) is arranged outside the protruding portion (11); and the interactive controller (43) is arranged outside the cabinet (1).

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