Movable cart special for ventilation cabinet
By installing screws on both sides of the fume hood and connecting them to a mobile trolley, and using the screws to rotate and lift and the straps to fix it, the displacement problem of the fume hood when it is in fixed use is solved, and a fast and convenient moving effect is achieved.
Patent Information
- Application Number
- CN202520394469.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing fume hoods are prone to displacement due to accidental bumping when in fixed use, making them inconvenient to use and difficult to move.
Design a special mobile trolley for fume hoods. By installing screws on both sides of the hood and connecting them to the mobile trolley, the rotation of the screws drives the hood to rise and fall. Combined with the fixing straps, it can be quickly lifted and transferred.
This enables the fume hood to be moved quickly and easily, improving the equipment's practicality and ease of operation.
Smart Images

Figure CN223736090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fume hood technology, specifically a mobile trolley for fume hoods. Background Technology
[0002] Cabinet-type exhaust hoods, commonly known as fume hoods, are similar to enclosed hoods. Small parts spray painting cabinets and chemical laboratory fume hoods are typical examples of cabinet-type exhaust hood structures. Large chamber-type fume hoods have one side completely open, allowing operators to work inside; they are mainly used for painting large parts and bagging powder materials. The working opening of the fume hood significantly affects the airflow distribution within, which in turn directly impacts the effectiveness of the cabinet-type exhaust hood.
[0003] While existing fume hoods are easy to open for maintenance, they are not easy to move. Usually, casters are added to the bottom of the fume hood, but they are easy to accidentally move when in fixed use, which is inconvenient. Utility Model Content
[0004] The purpose of this utility model is to provide a special mobile cart for fume hoods to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A mobile trolley for fume hoods includes a mobile cart with two symmetrically arranged front forks mounted on its front end. The fume hood is positioned between the two front forks. Two symmetrically arranged first threaded cylinders are fixedly connected to both sides of the fume hood. A first screw is threaded into the first threaded cylinder, and a rotating connecting seat is fixedly connected to the bottom of the first screw. A rotating frame is rotatably connected to the rotating connecting seat. Slide grooves are fixedly connected to both sides of the rotating frame, and a telescopic rod is slidably connected within the slide grooves. The telescopic rod passes through the slide grooves and is fixedly connected to a fixing groove. A second fastening bolt is fixedly connected to the front fork, and the second fastening bolt cooperates with the fixing groove. A fixing rod is fixedly connected to the mobile cart, and buckles are fixedly connected to both sides of the fixing rod. A strap is connected between the buckles and cooperates with the fume hood. A second threaded cylinder is disposed inside the fixing rod, and a second screw is threaded into the second threaded cylinder. A top block is fixedly connected to one end of the second screw.
[0007] As a further embodiment of this utility model: a steering wheel is installed at the bottom of the front fork, and a drive wheel is installed at the bottom of the mobile trolley.
[0008] As a further embodiment of this utility model, a pusher is fixedly connected to the rear of the mobile trolley.
[0009] As a further embodiment of this utility model: a first knob is fixedly connected to the top of the first screw, and a second knob is fixedly connected to the other end of the second screw.
[0010] As a further improvement of this utility model: an adjustment groove is provided in the sliding groove, and a first fastening bolt is provided in the adjustment groove, which is fixedly connected to the telescopic rod.
[0011] Compared with the prior art, the beneficial effects of this utility model are: by installing screws on both sides of the cabinet, the fume hood is connected to the mobile trolley, and the cabinet can be lifted and moved by rotating the screws, thereby realizing the quick lifting and transfer of the cabinet. The operation is simple, the installation is convenient, and the practicality of the equipment is improved. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of a mobile trolley specifically designed for fume hoods according to this utility model.
[0013] Figure 2 This is a partial cross-sectional view of a mobile trolley specifically designed for fume hoods according to this utility model.
[0014] Figure 3 This is a structural schematic diagram of a mobile trolley specifically designed for fume hoods according to this utility model.
[0015] In the diagram: 1-Mobile trolley, 2-Front fork, 3-Drive wheel, 4-Steering wheel, 5-Push handle, 6-Fume hood, 7-First threaded cylinder, 8-First screw, 9-First knob, 10-Rotating connecting seat, 11-Rotating frame, 12-Slide groove, 13-Telescopic rod, 14-Adjusting groove, 15-First fastening bolt, 16-Fixing groove, 17-Second fastening bolt, 18-Fixing rod, 19-Buck, 20-Strap, 21-Second threaded cylinder, 22-Second screw, 23-Second knob, 24-Top block. 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] See Figures 1-3In this embodiment of the utility model, a mobile trolley for fume hoods includes a mobile trolley 1. Two sets of symmetrically arranged front forks 2 are mounted on the front end of the mobile trolley 1. A fume hood 6 is positioned between the two sets of front forks 2. Two sets of symmetrically arranged first threaded cylinders 7 are fixedly connected to both sides of the fume hood 6. A first screw 8 is threadedly connected to the inner side of each first threaded cylinder 7. A rotating connecting seat 10 is fixedly connected to the bottom of each first screw 8. A rotating frame 11 is rotatably connected to the rotating connecting seat 10. Slide grooves 12 are fixedly connected to both sides of the rotating frame 11. A telescopic rod 13 is slidably connected within the slide grooves 12. The telescopic rod 13 passes through the slide grooves 12 and is fixedly connected to a fixing groove 1. 6. A second fastening bolt 17 is fixedly connected to the front fork 2. The second fastening bolt 17 cooperates with the fixing groove 16. A fixing rod 18 is fixedly connected to the moving trolley 1. Buckles 19 are fixedly connected to both sides of the fixing rod 18. A strap 20 is connected between the buckles 19. The strap 20 cooperates with the fume hood 6. A second threaded cylinder 21 is provided inside the fixing rod 18. A second screw 22 is threadedly connected inside the second threaded cylinder 21. A top block 24 is fixedly connected to one end of the second screw 22. A first knob 9 is fixedly connected to the top of the first screw 8. A second knob 23 is fixedly connected to the other end of the second screw 22.
[0018] When transferring the fume hood 6, the present invention first moves the fume hood 6 between the two sets of front forks 2 by freely moving the trolley 1. Then, turning the first knob 9 drives the first screw 8, thereby raising the first screw 8 through the threaded connection between the first screw 8 and the first threaded cylinder 7. The first screw 8 drives the fixing groove 16 to rise through the rotating connecting seat 10 and the rotating frame 11. After the fixing groove 16 rises past the front fork 2, the trolley 1 can move the front fork 2 below the fixing groove 16 and align the fixing groove 16 with the second fastening bolt 17. Then, turning the first knob 9 again drives the first screw 8, thereby lowering the first screw 8 through the threaded connection between the first screw 8 and the first threaded cylinder 7. The first screw 8 drives the first screw 8 through the rotating connecting seat 10 and the rotating frame 11. The fixing slot 16 descends, allowing the second fastening bolt 17 to be inserted into the fixing slot 16. Then, the second fastening bolt 17 is tightened. After that, the first knob 9 is turned again. At this time, the first screw 8 no longer moves up or down. The first screw 8 drives the first threaded cylinder 7 to move up or down through the threaded connection with the first threaded cylinder 7. The first threaded cylinder 7 drives the fume hood 6 to move up or down, thereby lifting the fume hood 6 off the ground. Then, the second knob 23 is turned. The second knob 23 drives the second screw 22 to rotate. The second screw 22 drives the top block 24 to extend towards the fume hood 6 through the threaded connection with the second threaded cylinder 21. At the same time, the fume hood 6 is bound by the cooperation of the buckle 19 and the strap 20. It also works with the top block 24 to fix the fume hood 6. Then, the fume hood 6 can be moved.
[0019] In one instance of this embodiment, please refer to Figures 1-3 The front fork 2 is equipped with a steering wheel 4 at its bottom, the mobile trolley 1 is equipped with a drive wheel 3 at its bottom, and the mobile trolley 1 is fixedly connected to a pusher 5 at its rear. This utility model achieves free movement of the equipment through the cooperation of the drive wheel 3, the steering wheel 4 and the pusher 5.
[0020] In one instance of this embodiment, please refer to Figures 1-3 The sliding groove 12 is provided with an adjustment groove 14, and a first fastening bolt 15 is provided in the adjustment groove 14. The first fastening bolt 15 is fixedly connected to the telescopic rod 13. This utility model achieves a relatively tight connection between the sliding groove 12 and the telescopic rod 13 by setting the first fastening bolt 15 and the adjustment groove 14. When it is necessary to adjust the telescopic rod 13 to extend or retract, simply unscrew the first fastening bolt 15 to achieve sliding adjustment of the telescopic rod 13 in the sliding groove 12.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 mobile cart dedicated to a fume hood comprising a mobile trolley, characterized in that, The mobile trolley is provided with two groups of symmetrically arranged front forks at the front end, and a fume hood is arranged between the two groups of front forks, the fume hood is fixedly connected with two groups of symmetrically arranged first threaded barrels at the two sides, the first threaded barrels are threadedly connected with first screw rods, the first screw rods are fixedly connected with rotating connecting seats at the bottom, rotating frames are rotatably connected to the rotating connecting seats, sliding grooves are fixedly connected to the two sides of the rotating frames, telescopic rods are slidably connected into the sliding grooves, the telescopic rods are fixedly connected with fixing grooves through the sliding grooves, the front forks are fixedly connected with second fastening bolts, the second fastening bolts are matched with the fixing grooves, the mobile trolley is fixedly connected with a fixing rod, the fixing rod is fixedly connected with buckles at the two sides, and the buckles are connected with a bandage, the bandage is matched with the fume hood, the fixing rod is provided with a second threaded barrel, the second threaded barrel is threadedly connected with a second screw rod, and the second screw rod is fixedly connected with a top block at one end.
2. A mobile cart for a fume hood according to claim 1, wherein, The front forks are provided with steering wheels at the bottom, and the mobile trolley is provided with driving wheels at the bottom.
3. A mobile cart for a fume hood according to claim 2, wherein, The mobile trolley is fixedly connected with a push handle at the tail.
4. A mobile cart for a fume hood according to claim 1, wherein, The first screw rods are fixedly connected with first knobs at the top, and the second screw rods are fixedly connected with second knobs at the other end.
5. A mobile cart for a fume hood according to claim 1, wherein, Adjusting grooves are arranged in the sliding grooves, the adjusting grooves are provided with first fastening bolts, and the first fastening bolts are fixedly connected to the telescopic rods.