A mobile, portable fume hood

Abstract

The utility model discloses a portable ventilation cabinet can move, include: ventilation cabinet main part structure, the upper chamber and the lower chamber with the storage function that are used for operating use are seted up on ventilation cabinet main part structure, the bottom of ventilation cabinet main part structure is installed with the support foot, the bottom of ventilation cabinet main part structure is fixed and is embedded with fixed cylinder, the utility model discloses a adjusting assembly that operates the lifting rod is seted up in the lower chamber, can effectively avoid the inconvenience of operating the mobile wheel from outside, can be lifted and handle to the mobile wheel, when the mobile wheel is supported to ventilation cabinet main part structure and moves down, the support foot is separated from the ground, and the mobile wheel drives ventilation cabinet main part structure to move, effectively avoids the external space shortage and cannot operate the mobile wheel from outside, solves the problem that the traditional parallel wall ventilation cabinet is inconvenient to move.

Description

Technical Field

[0001] This utility model relates to the field of fume hood transfer technology, specifically a portable fume hood. 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] The bottom of the existing cabinet structure is equipped with support feet and casters. The use of support feet and casters together increases the flexibility of the cabinet structure. When moving a traditional cabinet structure, the casters need to be operated from the outside to unlock the structure and restore the freedom of the casters, so as to facilitate the transfer of the cabinet structure. However, the operation of the casters of non-electric structures requires manual operation. Before moving, the cabinets are usually placed side by side or against the wall, and the movement from the inside is inconvenient, making this type of cabinet structure inconvenient to move. Utility Model Content

[0004] The purpose of this invention is to provide a portable fume hood to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable fume hood, comprising:

[0006] Main structure of the fume hood;

[0007] The main structure of the fume hood has an upper chamber for operation and a lower chamber for storage. Support feet are installed at the bottom of the main structure of the fume hood. Casters for moving the main structure of the fume hood are provided at the bottom of the main structure of the fume hood. A fixed cylinder is fixedly embedded at the bottom of the main structure of the fume hood. A lifting rod is installed on the top of the casters. The lifting rod passes through the inner cavity of the fixed cylinder. An adjustment component for moving the lifting rod up and down is provided on the main structure of the fume hood. The adjustment component is located in the lower chamber.

[0008] Preferably, the movable wheel is installed at the bottom of the support plate, and the lifting rod is fixed at the center of the top of the support plate.

[0009] Preferably, the adjustment component includes a turntable rotatably disposed inside the main structure of the fume hood, and a spiral guide groove is provided on one side of the turntable. A fixing column is fixed on the side wall of the lifting rod, and a through groove is provided on the side wall of the fixing cylinder. The end of the fixing column away from the lifting rod passes through the through groove and extends into the spiral guide groove. A manual drive component for rotating the turntable is also provided inside the main structure of the fume hood.

[0010] Preferably, the manual drive assembly includes a worm gear fixed on a turntable, and a worm is rotatably connected inside the main structure of the fume hood via a bearing. The worm meshes with the worm gear on opposite sides, and the top of the worm extends into the lower chamber and is fixed with a hand crank.

[0011] Preferably, limit posts are fixed around the top of the support plate, and limit holes are opened at the bottom of the main structure of the fume hood, with the limit posts slidably disposed in the limit holes.

[0012] Preferably, the bottom of the fume hood main structure is provided with a threaded mounting hole communicating with the lower chamber, the support foot is threadedly installed in the threaded mounting hole, and the top of the support foot is provided with an operating hole.

[0013] Preferably, the bottom of the fume hood is equipped with baffles around its perimeter to block dust, with two sets of adjacent baffles arranged vertically and each end having a 45-degree chamfer.

[0014] Preferably, the bottom of the fume hood main structure is provided with a slot, the top of the baffle is engaged in the slot, and the side wall of the fume hood main structure is threaded with mounting screws, the threads of which penetrate the baffle.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, by setting the adjustment component for operating the lifting rod in the lower cavity, can effectively avoid the inconvenience of operating the moving wheels from the outside. The moving wheels can be raised and lowered. When the moving wheels move down to support the main structure of the fume hood, the support feet are off the ground, and the moving wheels drive the main structure of the fume hood to move. This effectively avoids the problem of insufficient external space preventing operation of the moving wheels from the outside, and solves the problem of inconvenient movement of traditional side-by-side fume hoods against the wall.

[0017] 2. This utility model uses a spiral guide groove and the cooperation of a worm gear and worm to lock the structure in two ways, so as to avoid the vibration of the main structure of the fume hood during operation from affecting its stability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the adjustment component and support plate of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the adjustment component and the manual drive component of this utility model;

[0022] Figure 5 This is a bottom-view three-dimensional structural diagram of the main structure of the fume hood of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the support foot of this utility model.

[0024] The diagram shows the following components: 1. Main structure of the fume hood; 2. Support legs; 3. Casters; 4. Fixed cylinder; 5. Lifting rod; 6. Adjustment assembly; 61. Turntable; 62. Spiral guide groove; 63. Fixed column; 64. Through groove; 7. Support plate; 8. Manual drive assembly; 81. Worm gear; 82. Worm; 83. Hand crank; 9. Limiting column; 10. Limiting hole; 11. Threaded mounting hole; 12. Operating hole; 13. Baffle; 14. Slot; 15. Mounting screw. Detailed Implementation

[0025] 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.

[0026] This utility model provides, for example Figures 1-6 The portable fume hood shown includes:

[0027] Fume hood main structure 1;

[0028] The main structure 1 of the fume hood has an upper chamber for operation and a lower chamber for storage. Support feet 2 are installed at the bottom of the main structure 1 of the fume hood. Casters 3 for moving the main structure 1 of the fume hood are provided at the bottom of the main structure 1 of the fume hood. A fixed cylinder 4 is fixedly embedded at the bottom of the main structure 1 of the fume hood. A lifting rod 5 is installed on the top of the casters 3. The lifting rod 5 passes through the inner cavity of the fixed cylinder 4. An adjustment component 6 for moving the lifting rod 5 up and down is provided on the main structure 1 of the fume hood. The adjustment component 6 is located in the lower chamber.

[0029] By placing the adjustment component 6, which operates the lifting rod 5, in the lower chamber, the inconvenience of operating the moving wheel 3 from the outside can be effectively avoided. The moving wheel 3 can be raised and lowered. When the moving wheel 3 moves down to support the main structure 1 of the fume hood, the support foot 2 leaves the ground, and the moving wheel 3 drives the main structure 1 of the fume hood to move. This effectively avoids the problem of insufficient external space preventing operation of the moving wheel 3 from the outside, and solves the problem of inconvenience in moving traditional side-by-side fume hoods against the wall.

[0030] Among them, such as Figure 3-4 As shown:

[0031] The movable wheel 3 is installed at the bottom of the support plate 7, and the lifting rod 5 is fixed at the center of the top of the support plate 7. The support plate 7 facilitates the installation of the movable wheel 3 and the lifting rod 5, enabling the movable wheel 3 to rotate and move in multiple directions, while also allowing the movable wheel 3 to be adjusted up and down, thus improving the stability of the main structure 1 of the fume hood.

[0032] Furthermore, such as Figure 3-4 As shown:

[0033] The adjustment assembly 6 includes a turntable 61 rotatably disposed inside the main structure 1 of the fume hood, with a spiral guide groove 62 on one side of the turntable 61. A fixing column 63 is fixed on the side wall of the lifting rod 5, and a through groove 64 is provided on the side wall of the fixing cylinder 4. The end of the fixing column 63 away from the lifting rod 5 passes through the through groove 64 and extends into the spiral guide groove 62. The main structure 1 of the fume hood also has a manual drive assembly 8 for rotating the turntable 61. By rotating the spiral guide groove 62, the fixing column 63 slides in the spiral guide groove 62, thereby driving the lifting rod 5 to move up and down for adjustment. At the same time, the fixing column 63 can achieve a self-locking structure in the spiral guide groove 62 to ensure the stability of the structure.

[0034] Preferred, such as Figure 4 As shown:

[0035] The manual drive assembly 8 includes a worm gear 81 fixed on a turntable 61. Inside the main structure 1 of the fume hood, a worm 82 is rotatably connected via a bearing. The worm 82 meshes with the worm gear 81 on opposite sides. The top of the worm 82 extends into the lower chamber and is fixed with a hand crank 83. The worm 82 is rotated by the hand crank 83, and then the worm 82 drives the turntable 61 to rotate via the worm gear 81. The hand crank 83 is located in the lower chamber, which facilitates the adjustment of the height of multiple sets of moving wheels 3 from the lower chamber, avoiding the inability to raise or lower the moving wheels 3 due to insufficient external space.

[0036] It is worth noting that, such as Figure 3-5 As shown:

[0037] Limiting posts 9 are fixed around the top of the support plate 7. Limiting holes 10 are opened at the bottom of the main structure 1 of the fume hood. The limiting posts 9 are slidably set in the limiting holes 10. Through the cooperation between the limiting posts 9 and the limiting holes 10, the lifting rod 5 is conveniently limited, so as to prevent the lifting rod 5 from rotating under the rotation of the moving wheel 3, which would cause the fixed post 63 to be squeezed in the through groove 64, affecting the stability of the fixed post 63 structure and increasing the service life of the device.

[0038] In a further preferred embodiment, such as Figure 1 , Figure 5 and Figure 6 As shown:

[0039] The bottom of the fume hood main structure 1 is provided with a threaded mounting hole 11 that communicates with the lower chamber. The support leg 2 is threaded into the threaded mounting hole 11. The top of the support leg 2 is provided with an operating hole 12. The support leg 2 can be easily installed through the threaded mounting hole 11. At the same time, a tool can be inserted into the threaded mounting hole 11 from the lower chamber and connected with the operating hole 12 to adjust the height of the support leg 2 for horizontal adjustment after the fume hood main structure 1 is moved.

[0040] In addition, such as Figure 2 As shown:

[0041] The bottom of the fume hood main structure 1 is equipped with baffles 13 to block dust. Two sets of adjacent baffles 13 are vertically arranged and have 45-degree chamfers at both ends. The baffles 13 can cover the bottom space of the fume hood main structure 1 to prevent dust from accumulating at the bottom and forming a dead corner.

[0042] In this embodiment, as Figure 2 and Figure 5 As shown:

[0043] The bottom of the fume hood main structure 1 is provided with a slot 14, and the top of the baffle 13 is snapped into the slot 14. The side wall of the fume hood main structure 1 is threaded with a mounting screw 15, and the mounting screw 15 is threaded through the baffle 13. The baffle 13 can be snapped into the slot 14, and the mounting screw 15 is used to fix the baffle 13 to prevent the baffle 13 from shaking or falling off.

[0044] In practical use, when the fume hood needs to be moved, because the main structure 1 of the fume hood is against a wall or placed side by side, the moving wheels 3 cannot be operated from the outside. At this time, open the cabinet door of the lower chamber, and then manually turn the hand crank 83. The hand crank 83 drives the worm gear 82 to rotate, and the worm gear 82 drives the worm wheel 81 to drive the turntable 61. Subsequently, the turntable 61 drives the spiral guide groove 62 to rotate synchronously, causing the fixed column 63, which is slidably connected in the spiral guide groove 62, to move down. At the same time, the fixed column 63 drives the lifting rod 5 to move down, so that the moving wheels 3 contact the ground and support the main structure 1 of the fume hood, causing the support feet 2 to fall to the ground. At this point, the main structure 1 of the fume hood is moved away from the wall using the steering mechanism of the moving wheels 3. After the main structure 1 of the fume hood is moved to another position, the hand crank 83 is turned in the opposite direction to raise the moving wheels 3. The main structure 1 of the fume hood is then supported by the support feet 2. At this point, the level of the main structure 1 of the fume hood needs to be readjusted. Using a level, the tool is inserted into the operating hole 12 from the threaded mounting hole 11 in the lower chamber. The support feet 2 are rotated using the tool. The height of the main structure 1 of the fume hood is adjusted by rotating the support feet 2 in the threaded mounting hole 11, which facilitates the adjustment of the level of the main structure 1 of the fume hood.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable fume hood, characterized in that, include: Main structure of the fume hood (1); The main structure (1) of the fume hood is provided with an upper chamber for operation and a lower chamber for storage. Support feet (2) are installed at the bottom of the main structure (1). A moving wheel (3) for moving the main structure (1) is provided below the main structure (1). A fixed cylinder (4) is fixedly embedded at the bottom of the main structure (1). A lifting rod (5) is installed on the top of the moving wheel (3). The lifting rod (5) passes through the inner cavity of the fixed cylinder (4). An adjustment component (6) for moving the lifting rod (5) up and down is provided on the main structure (1). The adjustment component (6) is located in the lower chamber.

2. The portable fume hood according to claim 1, characterized in that: The movable wheel (3) is installed at the bottom of the support plate (7), and the lifting rod (5) is fixed at the center of the top of the support plate (7).

3. A portable fume hood according to claim 1, characterized in that: The adjustment component (6) includes a turntable (61) rotatably disposed inside the main structure (1) of the fume hood, and a spiral guide groove (62) is provided on one side of the turntable (61). A fixing column (63) is fixed on the side wall of the lifting rod (5), and a through groove (64) is provided on the side wall of the fixing cylinder (4). The end of the fixing column (63) away from the lifting rod (5) passes through the through groove (64) and extends into the spiral guide groove (62). A manual drive component (8) for rotating the turntable (61) is also provided inside the main structure (1) of the fume hood.

4. A portable fume hood according to claim 3, characterized in that: The manual drive assembly (8) includes a worm gear (81) fixed on a turntable (61). The main structure (1) of the fume hood is rotatably connected to a worm (82) via a bearing. The worm (82) meshes with the worm gear (81) on opposite sides. The top of the worm (82) extends into the lower chamber and is fixed with a hand crank (83).

5. A portable fume hood according to claim 2, characterized in that: Limiting posts (9) are fixed around the top of the support plate (7), and limiting holes (10) are opened at the bottom of the main structure (1) of the fume hood. The limiting posts (9) are slidably disposed in the limiting holes (10).

6. A portable fume hood according to claim 1, characterized in that: The bottom of the main structure (1) of the fume hood is provided with a threaded mounting hole (11) that communicates with the lower chamber. The support foot (2) is threadedly installed in the threaded mounting hole (11), and the top of the support foot (2) is provided with an operating hole (12).

7. A portable fume hood according to claim 1, characterized in that: The main structure (1) of the fume hood is equipped with baffles (13) around the bottom to block dust. Two sets of adjacent baffles (13) are vertically arranged and have 45-degree chamfers at both ends.

8. A portable fume hood according to claim 7, characterized in that: The bottom of the main structure (1) of the fume hood is provided with a slot (14), the top of the baffle (13) is engaged in the slot (14), and the side wall of the main structure (1) of the fume hood is threaded with a mounting screw (15), and the mounting screw (15) threaded through the baffle (13).

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