Laminar flow cover convenient to disassemble
Through the combined structure of limit pin and electric telescopic rod, the flow baffle and the filter element of the laminar flow hood are easily removed and replaced, which solves the cumbersome problem of traditional laminar flow hood removal, reduces maintenance costs and improves operating efficiency.
Patent Information
- Application Number
- CN202421857191.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The traditional laminar flow hood has a complex structure, the installation and disassembly process is cumbersome, which increases maintenance costs and may damage internal components, especially inconvenient when disassembling and cleaning the filter element and flow balancing.
A laminar flow cover is designed for easy disassembly. Through a combined structure of limit pin, swing frame and electric telescopic rod, the flow-sharing plate and filter element can be easily removed and replaced, including the release of limit pin and the use of electric telescopic rod to push the push plate, simplifying the disassembly process.
It realizes convenient disassembly and clean the flow-sharing plate and filter element, reduces maintenance costs, improves operating efficiency, and avoids damage to internal components.
Smart Images
Figure CN223121583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laminar flow hoods, in particular to a laminar flow hood that is easy to disassemble. Background Technique
[0002] A laminar flow hood is a device that provides a clean, dust-free and sterile working environment for a specific working area through high-efficiency air filtration technology. It utilizes the principles of aerodynamics and fluid mechanics, and through a specific air supply system, sends the highly filtered air into the working area at a constant speed and direction to form a uniform and stable air flow, thereby effectively removing pollutants such as dust and microorganisms in the working area.
[0003] The main functions of the laminar flow hood include: providing a clean environment: the core function of the laminar flow hood is to provide a highly clean environment for the working area. Protecting products from contamination: In the pharmaceutical and biotechnology fields, laminar flow hoods are commonly used for air purification in sterile production workshops, which can prevent microorganisms and particulate matter in the air from contaminating products, thereby ensuring the quality and safety of drugs and biological products. Reducing the risk of infection: In the medical and health fields, laminar flow hoods are commonly used for air purification in key areas such as operating rooms and laboratories. Improving production efficiency: The application of laminar flow hoods can also improve production efficiency. In the food processing and other fields, laminar flow hoods help to keep the production environment clean, reduce production interruptions and product quality problems caused by environmental pollution, thereby improving production efficiency and product quality.
[0004] However, in actual use of the existing technology, traditional laminar flow hoods usually have complex structures, and the installation and disassembly processes are relatively cumbersome, which not only increases the maintenance cost, but also may damage internal components or affect the use effect during the disassembly process. Especially when disassembling and maintaining the filter element and the uniform flow plate that need to be regularly disassembled and cleaned inside the laminar flow hood, it is relatively cumbersome and inconvenient. Content of the Utility Model
[0005] The purpose of the utility model is to provide a laminar flow hood that is easy to disassemble, so as to solve the problem that traditional laminar flow hoods usually have complex structures, and the installation and disassembly processes are relatively cumbersome, which not only increases the maintenance cost, but also may damage internal components or affect the use effect during the disassembly process. Especially when disassembling and maintaining the filter element and the uniform flow plate that need to be regularly disassembled and cleaned inside the laminar flow hood, it is relatively cumbersome and inconvenient.
[0006] To achieve the above purpose, the utility model provides the following technical solution: including a laminar flow hood main body, a lifting frame is fixedly installed and supported at the upper end of the laminar flow hood main body, an air inlet is penetrated and opened in the middle of the upper end of the laminar flow hood main body, and a fan is fixedly installed at the lower end of the air inlet;
[0007] A lamp holder is fixedly installed on the front side of the lower end opening of the laminar flow hood body. A UV disinfection lamp is fixedly installed at the lower end of the lamp holder. An installation frame is fixedly installed on the rear side of the lower end opening of the laminar flow hood body. A swing frame is rotatably connected to the inner side of the installation frame through a pin shaft. A limit installation groove is formed on the inner side wall of the upper end of the swing frame. A uniform flow plate is fitted and movably connected to the inner wall of the limit installation groove. A groove is formed at the lower end of the installation frame. A convex platform is formed on the side end of the swing frame. A positioning pin penetrates through and is fitted and movably connected to the inner side wall of the groove. A pin hole is formed in the middle of the convex platform. A push button is fixedly installed on the outer curved surface of the middle of the positioning pin. A support spring is fixedly installed on the inner side of the push button;
[0008] A replacement opening is formed on the front side of the lower end of the laminar flow hood body. A replacement baffle is hinged to the front end of the replacement opening. A limit groove frame is fixedly communicated with the rear end of the replacement opening. An electric telescopic rod is fixedly installed on the rear side of the lower end of the laminar flow hood body. A push plate is fixedly installed on the telescopic part of the front end of the electric telescopic rod. A filter element for filtering and purifying the air inside the laminar flow hood body is fitted and movably connected to the front end of the push plate.
[0009] Preferably, installation holes are formed through the four corners of the upper end of the hoisting frame, and the upper end of the air inlet is communicated with an external air duct.
[0010] Preferably, uniform flow air grooves are formed through the lower end surface of the uniform flow plate. The number of the uniform flow air grooves is several, and they are symmetrically distributed in sequence on the lower end surface of the uniform flow plate.
[0011] Preferably, the outer curved surface of the front end of the positioning pin penetrates through and is fitted and movably connected to the inner wall of the pin hole.
[0012] Preferably, the side end of the support spring away from the push button is fixedly installed on the inner side wall of the groove.
[0013] Preferably, the outer side of the limit groove frame is fixedly installed on the inner wall of the lower end of the laminar flow hood body, and the telescopic part of the front end of the electric telescopic rod penetrates through the rear side of the lower end of the laminar flow hood body and the rear side of the limit groove frame.
[0014] Preferably, the push plate is fitted and movably connected to the inner wall of the rear end of the limit groove frame, and the outer side of the filter element is fitted and movably connected to the inner wall of the limit groove frame.
[0015] Compared with the prior art, the beneficial effects of the present utility model are:
[0016] In the present utility model, by pushing the push button backward, when the push button is pushed backward, it will drive the positioning pin to move linearly backward along the inner wall of the groove while compressing the support spring. When the positioning pin moves linearly backward, the front end of the positioning pin will leave the inner wall of the pin hole. When the front end of the positioning pin leaves the inner wall of the pin hole, the limit on the boss can be released. When the limit on the boss is released, the swing frame will swing downward under the action of its own gravity to open. When the swing frame swings downward to open, by removing the flow equalizing plate from the inner wall of the limit installation groove, the flow equalizing plate can be disassembled and cleaned, thus realizing the function of facilitating the disassembly and cleaning of the flow equalizing plate;
[0017] The present utility model also controls the opening of the electric telescopic rod. When the electric telescopic rod is opened, the telescopic part at the front end of the electric telescopic rod will push the push plate to move linearly forward along the inner wall at the rear end of the limit groove frame. When the push plate moves linearly forward, it will push the filter element to move linearly forward along the inner wall of the limit groove frame. When the filter element moves linearly forward, it will push the replacement baffle to open forward along the replacement opening. When the replacement baffle is opened, the front end of the filter element will protrude from the replacement opening. When the front end of the filter element protrudes from the replacement opening, it is convenient to take out the filter element from the inner wall of the limit groove frame, thus realizing the function of facilitating the replacement of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of a laminar flow hood that is easy to disassemble according to the present utility model Figure 1 ;
[0019] Figure 2 is a schematic diagram of the overall structure of a laminar flow hood that is easy to disassemble according to the present utility model Figure 2 ;
[0020] Figure 3 is a schematic diagram of the partial structure of a laminar flow hood that is easy to disassemble according to the present utility model;
[0021] Figure 4 is a schematic sectional view of the overall structure of a laminar flow hood that is easy to disassemble according to the present utility model;
[0022] Figure 5 is a schematic sectional view of the partial structure of a laminar flow hood that is easy to disassemble according to the present utility model.
[0023] In the figure: 1, main body of the laminar flow hood; 2, lifting frame; 3, air inlet; 4, fan; 5, lamp holder; 6, ultraviolet disinfection lamp; 7, installation frame; 8, swing frame; 9, limit installation groove; 10, flow equalizing plate; 11, groove; 12, boss; 13, positioning pin; 14, pin hole; 15, push button; 16, support spring; 17, replacement opening; 18, replacement baffle; 19, limit groove frame; 20, electric telescopic rod; 21, push plate; 22, filter element. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution for a laminar flow hood that is easy to disassemble: including a laminar flow hood main body 1, a lifting frame 2 is fixedly installed and supported at the upper end of the laminar flow hood main body 1, and mounting holes are formed through the four corners at the upper end of the lifting frame 2, so that the lifting frame 2 and the laminar flow hood main body 1 are installed and fixed through the mounting holes in cooperation with mounting bolts. An air inlet 3 is formed through the middle of the upper end of the laminar flow hood main body 1, and the upper end of the air inlet 3 is communicated with an external air duct. A blower 4 is fixedly installed at the lower end of the air inlet 3, so that the air in the external air duct is discharged into the laminar flow hood main body 1 through the cooperation of the blower 4 and the air inlet 3.
[0026] A lamp holder 5 is fixedly installed at the front side of the lower opening of the laminar flow hood main body 1, and an ultraviolet disinfection lamp 6 is fixedly installed at the lower end of the lamp holder 5, so that the area below the laminar flow hood main body 1 is disinfected through the ultraviolet disinfection lamp 6. An installation frame 7 is fixedly installed at the rear side of the lower opening of the laminar flow hood main body 1. A swing frame 8 is rotatably connected to the inner side of the installation frame 7 through a pin shaft. A limit installation groove 9 is formed in the inner wall of the upper end of the swing frame 8. An even flow plate 10 is movably connected to the inner wall of the limit installation groove 9 in a fitting manner. A plurality of even flow air grooves are formed through the lower end surface of the even flow plate 10, and are symmetrically distributed in sequence on the lower end surface of the even flow plate 10. A groove 11 is formed in the lower end of the installation frame 7, and a boss 12 is formed on the side end of the swing frame 8. A positioning pin 13 is movably connected to the inner side wall of the groove 11 in a penetrating and fitting manner. A pin hole 14 is formed in the middle of the boss 12, and the front outer surface of the positioning pin 13 is movably connected to the inner wall of the pin hole 14 in a penetrating and fitting manner, so that the boss 12 is limited through the cooperation of the positioning pin 13 and the pin hole 14. A push button 15 is fixedly installed on the outer surface of the middle part of the positioning pin 13. A support spring 16 is fixedly installed on the inner side of the push button 15, and the side end of the support spring 16 away from the push button 15 is fixedly installed on the inner side wall of the groove 11, so that the push button 15 is elastically supported through the support spring 16.
[0027] At the front side of the lower end of the laminar flow hood main body 1, there is a replacement opening 17. A replacement baffle 18 is hinged at the front end of the replacement opening 17. The rear end of the replacement opening 17 is fixedly communicated with a limit groove frame 19, and the outside of the limit groove frame 19 is fixedly installed on the inner wall of the lower end of the laminar flow hood main body 1. At the rear side of the lower end of the laminar flow hood main body 1, an electric telescopic rod 20 is fixedly installed. The telescopic part at the front end of the electric telescopic rod 20 penetrates through the rear side of the lower end of the laminar flow hood main body 1 and the rear side of the limit groove frame 19. A push plate 21 is fixedly installed on the telescopic part at the front end of the electric telescopic rod 20, and the push plate 21 is in fitting and movable connection with the inner wall of the rear end of the limit groove frame 19. A filter element 22 for filtering and purifying the air inside the laminar flow hood main body 1 is in fitting and movable connection with the front end of the push plate 21, and the outside of the filter element 22 is in fitting and movable connection with the inner wall of the limit groove frame 19.
[0028] Working principle: When in use, the utility model controls the opening of the fan 4. When the fan 4 is opened, it will cooperate with the air inlet 3 to discharge the air in the external air duct into the laminar flow hood main body 1. When the air in the external air duct is discharged into the laminar flow hood main body 1, the external air will pass through the filter element 22 for filtering and purification and then be discharged downward through the inner wall of the uniform flow air groove formed by the through opening on the lower end surface of the uniform flow plate 10, so as to realize the function of filtering the external air and discharging it downward.
[0029] When it is necessary to disassemble and clean the uniform flow plate 10, by pushing the push button 15 backward. When the push button 15 is pushed backward, it will drive the positioning pin 13 to move linearly backward along the inner side wall of the groove 11 while compressing the support spring 16. When the positioning pin 13 moves linearly backward, the front end of the positioning pin 13 will leave the inner wall of the pin hole 14. When the front end of the positioning pin 13 leaves the inner wall of the pin hole 14, the limit on the boss 12 can be released. When the limit on the boss 12 is released, the swing frame 8 will swing downward under the action of its own gravity to open. When the swing frame 8 swings downward to open, by taking out the uniform flow plate 10 from the inner wall of the limit installation groove 9, the uniform flow plate 10 can be disassembled and cleaned, so as to realize the function of facilitating the disassembly and cleaning of the uniform flow plate 10.
[0030] At the same time, when it is necessary to disassemble and replace the filter element 22, by controlling the opening of the electric telescopic rod 20. When the electric telescopic rod 20 is opened, the telescopic part at the front end of the electric telescopic rod 20 will push the push plate 21 to move linearly forward along the inner wall of the rear end of the limit groove frame 19. When the push plate 21 moves linearly forward, it will push the filter element 22 to move linearly forward along the inner wall of the limit groove frame 19. When the filter element 22 moves linearly forward, it will push the replacement baffle 18 to open forward along the replacement opening 17. When the replacement baffle 18 is opened, the front end of the filter element 22 will protrude from the replacement opening 17. When the front end of the filter element 22 protrudes from the replacement opening 17, it is convenient to take out the filter element 22 from the inner wall of the limit groove frame 19, so as to realize the function of facilitating the replacement of the filter element 22.
[0031] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0032] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A laminar flow hood that is easy to disassemble, characterized in that: It includes a laminar flow hood body (1), and a hoisting frame (2) is fixedly installed and supported at the upper end of the laminar flow hood body (1). An air inlet (3) is penetrated and opened in the middle of the upper end of the laminar flow hood body (1), and a blower (4) is fixedly installed at the lower end of the air inlet (3). A lamp holder (5) is fixedly installed at the front side of the lower end opening of the laminar flow hood body (1), and an ultraviolet disinfection lamp (6) is fixedly installed at the lower end of the lamp holder (5). An installation frame (7) is fixedly installed at the rear side of the lower end opening of the laminar flow hood body (1). A swing frame (8) is rotatably connected inside the installation frame (7) through a pin shaft. A limit installation groove (9) is opened on the inner wall of the upper end of the swing frame (8), and a uniform flow plate (10) is fitted and movably connected to the inner wall of the limit installation groove (9). A groove (11) is opened at the lower side end of the installation frame (7), a boss (12) is opened at the side end of the swing frame (8), a positioning pin (13) is penetrated and fitted and movably connected to the inner side wall of the groove (11), a pin hole (14) is opened in the middle of the boss (12), a push button (15) is fixedly installed on the outer curved surface of the middle of the positioning pin (13), and a support spring (16) is fixedly installed inside the push button (15). A replacement opening (17) is opened at the front side of the lower end of the laminar flow hood body (1), a replacement baffle (18) is hinged at the front end of the replacement opening (17), a limit groove frame (19) is fixedly communicated with the rear end of the replacement opening (17), an electric telescopic rod (20) is fixedly installed at the rear side of the lower end of the laminar flow hood body (1), a push plate (21) is fixedly installed on the telescopic part at the front end of the electric telescopic rod (20), and a filter element (22) for filtering and purifying the air inside the laminar flow hood body (1) is fitted and movably connected to the front end of the push plate (21).
2. The laminar flow hood according to claim 1, wherein: Installation holes are penetrated and opened at the four corners of the upper end of the hoisting frame (2), and the upper end of the air inlet (3) is communicated with an external air duct.
3. The laminar flow hood according to claim 2, wherein: Uniform flow air grooves are penetrated and opened on the lower end surface of the uniform flow plate (10), and the number of the uniform flow air grooves is several, which are symmetrically distributed in sequence on the lower end surface of the uniform flow plate (10).
4. The laminar flow hood according to claim 3, wherein: The outer curved surface of the front end of the positioning pin (13) is penetrated and fitted and movably connected to the inner wall of the pin hole (14).
5. The laminar flow hood according to claim 4, wherein: One side end of the support spring (16) far away from the push button (15) is fixedly installed on the inner side wall of the groove (11).
6. The laminar flow hood according to claim 5, wherein: The outer side of the limit groove frame (19) is fixedly installed on the inner wall of the lower end of the laminar flow hood body (1), and the telescopic part at the front end of the electric telescopic rod (20) penetrates through the rear side of the lower end of the laminar flow hood body (1) and the rear side of the limit groove frame (19).
7. A laminar flow hood that is easy to disassemble according to claim 6, characterized in that: The push plate (21) is fitted and movably connected to the inner wall of the rear end of the limit groove frame (19), and the outer side of the filter element (22) is fitted and movably connected to the inner wall of the limit groove frame (19).