Ventilation cabinet with adjustable table top

Abstract

Relates to the field of fume cupboards, and discloses a table-board-adjustable fume cupboard which comprises a fume cupboard body, a fixed table arranged in the fume cupboard body, an operation table adjustably fixed to the fixed table and a fixed air suction cover arranged in the fume cupboard body and further comprises an adjusting unit and a control unit. The fan is arranged on the inner side wall of the ventilation cabinet and is connected with the operation table; the movable air suction unit is adjustably arranged in the ventilation cabinet; the adjusting unit comprises a mounting frame arranged on the side wall of the ventilation cabinet; according to the chemical reagent fume hood, harmful gas can be timely and accurately absorbed in the reaction process of chemical reagents, diffusion of the harmful gas in the fume hood is reduced, and therefore the absorption efficiency of the harmful gas can be improved, and the chemical reagent fume hood is suitable for popularization and application. The device is suitable for workers with different heights and operation habits, and the working comfort and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a fume hood with an adjustable table top. Background Art

[0002] Fume hood, also known as fume hood, is a large equipment in chemical laboratories, used to reduce the contact between experimenters and harmful gases.

[0003] The existing equipment has the following disadvantages: when the experimenter uses it, he needs to conduct relevant experiments on the operating table of the fume hood. However, the height of the operating table of most existing fume hoods is fixed and cannot be adjusted. Therefore, when people of different heights use it, it is easy to cause operator fatigue, making the operation inconvenient. The position of the existing exhaust hood cannot be adjusted, and the gas generated by the pharmaceutical experiment will diffuse inside the cabinet, affecting the exhaust efficiency.

[0004] Therefore, the present application now proposes a table-adjustable fume hood to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a fume hood with an adjustable tabletop to solve the problem that the height of the operating table of most of the above-mentioned fume hoods is fixed and cannot be adjusted. Therefore, when people of different heights use it, the position of the existing exhaust hood cannot be adjusted, and the gas generated by pharmaceutical experiments will diffuse inside the cabinet, affecting the exhaust efficiency.

[0006] To achieve the above object, the utility model provides the following technical solution: a fume hood with adjustable table top, comprising a fume hood, a fixed table arranged inside the fume hood, an operating table adjustably fixed on the fixed table, and a fixed air suction hood arranged inside the fume hood, and also comprising:

[0007] An adjustment unit, arranged on the inner wall of the fume hood and connected to the operating table, for adjusting the installation height of the operating table;

[0008] A movable air suction unit, which can be adjusted and arranged inside the fume hood, and is used for directional absorption of harmful gases inside the fume hood;

[0009] The adjustment unit comprises:

[0010] A mounting frame, arranged on a side wall of the fume hood;

[0011] An adjusting member is arranged at the upper end of the operating table and connected to the mounting frame, and is used for adjusting the mounting height of the operating table.

[0012] Wherein, a sliding block slidably connected to the mounting frame is arranged on one side of the adjusting member close to the mounting frame, and a sliding groove for the sliding block to move is provided on the mounting frame.

[0013] Among them, the adjusting member includes a mounting frame fixed to the upper end of the operating table and connected to the slider, an adjusting rod passing through the mounting frame, an extrusion plate fixed to the side of the adjusting rod close to the slider, and a positioning block fixed to the side of the extrusion plate close to the slider and passing through the slider, the slider is provided with a through hole for the positioning block to move, and the mounting frame is provided with positioning holes for fixing the positioning block at intervals.

[0014] Wherein, the adjusting rod is located between the installation frame and the extrusion plate and is sleeved with an elastic member, and the adjusting rod is located at a handle on one side outside the installation frame.

[0015] Among them, the movable air suction unit includes a fixing frame fixed on the inner wall of the fume hood, an adjusting block movably mounted on the fixing frame, a bellows fixed on the adjusting block on a side away from the fixing frame, an air suction hood fixed on the bellows on a side away from the adjusting block, and a connecting pipe fixed on the upper end of the adjusting block and connected to the air suction hood. A suction pipe is arranged on the outside of the fume hood, one side of the suction pipe is connected to the connecting pipe, and the other side is connected to the air purification equipment on the fume hood.

[0016] Wherein, an operation port is provided at the front end of the fume hood, and a cabinet door is adjustably provided at the position of the operation port of the fume hood.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model can adjust the installation height of the operating table inside the fume hood through the adjustment unit according to the height requirement of the experimenter when a chemical experiment needs to be conducted inside the fume hood. After the position is adjusted, the reagents required for the experiment are placed on the upper end of the operating table, and then the movable air suction unit is adjusted so that the air suction port of the movable air suction unit is aligned with the chemical reagent. In the process of the reaction of the chemical reagent, harmful gases can be absorbed timely and accurately, and the diffusion of harmful gases inside the fume hood can be reduced, thereby improving the absorption efficiency of harmful gases. By setting up the device, the installation height of the operating table can be adjusted according to actual needs to adapt to workers of different heights and operating habits, thereby improving work comfort and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure in one embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of an embodiment of the utility model in a front view;

[0021] Figure 3It is a schematic diagram of the structure of a side section in one embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of a cross-section structure in one embodiment of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the installation positions of the fixed platform and the operating platform in one embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of an adjusting member in one embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the connection between the positioning block and the positioning hole in one embodiment of the utility model;

[0026] Figure 8 for Figure 3 The enlarged structural diagram of the middle A part;

[0027] Fig. 9 for Figure 5 Schematic diagram of the structure with the B part enlarged.

[0028] In the figure: 1. fume hood; 11. cabinet door; 101. operation port; 102. fixed table; 2. operating table; 3. adjustment unit; 31. mounting frame; 311. slide slot; 312. positioning hole; 32. slider; 321. perforation; 33. adjustment member; 331. mounting frame; 332. adjustment rod; 333. extrusion plate; 334. positioning block; 335. elastic member; 336. handle; 4. fixed suction hood; 5. movable suction unit; 51. fixing frame; 52. adjustment block; 53. bellows; 54. suction hood; 55. connecting pipe; 56. suction pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-9 The utility model provides a technical solution: a table-adjustable fume hood, comprising a fume hood 1, a fixed table 102 arranged inside the fume hood 1, an operating table 2 adjustably fixed on the fixed table 102, and a fixed air suction hood 4 arranged inside the fume hood 1, and also comprising:

[0031] An adjustment unit 3, which is arranged on the inner wall of the fume hood 1 and connected to the operating table 2, and is used to adjust the installation height of the operating table 2;

[0032] The movable air suction unit 5 is adjustably arranged inside the fume hood 1 and is used for directional absorption of harmful gases inside the fume hood 1;

[0033] The adjustment unit 3 comprises:

[0034] A mounting frame 31 is arranged on a side wall of the fume hood 1;

[0035] The adjusting member 33 is disposed at the upper end of the operating platform 2 and connected to the mounting frame 31 , and is used for adjusting the installation height of the operating platform 2 .

[0036] It should be noted that during work, when it is necessary to conduct chemical experiments inside the fume hood 1, the installation height of the operating table 2 inside the fume hood 1 is adjusted through the adjustment unit 3 according to the height requirements of the experimenter. After the position is adjusted, the reagents to be experimented are placed on the upper end of the operating table 2, and then the active suction unit 5 is adjusted so that the suction port of the active suction unit 5 is aligned with the chemical reagents. During the reaction of the chemical reagents, harmful gases can be absorbed in a timely and accurate manner, reducing the diffusion of harmful gases inside the fume hood 1, thereby improving the absorption efficiency of harmful gases. By setting up this device, the installation height of the operating table 2 can be adjusted according to actual needs to adapt to workers of different heights and operating habits, thereby improving work comfort and efficiency.

[0037] In one embodiment, a slider 32 slidably connected to the mounting frame 31 is disposed on one side of the adjusting member 33 close to the mounting frame 31 , and a sliding groove 311 for the slider 32 to move is provided on the mounting frame 31 .

[0038] This design, see Figure 6 ,as well as Figure 7 The adjusting member 33 is movably connected to the mounting frame 31 through the slider 32, which can increase the adjustment range of the adjusting member 33 and improve the installation stability of the adjusting member 33 and the mounting frame 31.

[0039] In one embodiment, the adjusting member 33 includes a mounting frame 331 fixed to the upper end of the operating table 2 and connected to the slider 32, an adjusting rod 332 passing through the mounting frame 331, an extrusion plate 333 fixed to the side of the slider 32 close to the adjusting rod 332, and a positioning block 334 fixed to the side of the extrusion plate 333 close to the slider 32 and passing through the slider 32, the slider 32 is provided with a through hole 321 for the positioning block 334 to move, and the mounting frame 31 is provided with positioning holes 312 for fixing the positioning block 334 at intervals.

[0040] This design, see Figure 6-7 ,as well as Fig. 9, pull the adjusting rod 332 to the side away from the slider 32, so that the squeezing plate 333 drives the positioning block 334 to be pulled out from the positioning hole 312 on the mounting frame 31, and then releases the restriction of the positioning block 334 on the mounting frame 31. At this time, push the mounting frame 331 up and down, so that the slider 32 slides inside the slide groove 311, and then change the installation height of the operating table 2. After the height is adjusted, insert the positioning block 334 into the corresponding positioning hole 312 to fix the position of the operating table 2 to meet the needs of operators with different heights and operating habits.

[0041] In one embodiment, the adjusting rod 332 is located between the installation frame 331 and the pressing plate 333 , and an elastic member 335 is sleeved thereon. The adjusting rod 332 is located on a handle 336 on one side outside the installation frame 331 .

[0042] This design, see Figure 5-7 ,as well as Fig. 9 The elastic member 335 is made of a damped spring or elastic pad. When the handle 336 pulls the positioning block 334 out of the positioning hole 312, the extrusion plate 333 squeezes the elastic member 335. When the positioning block 334 needs to be inserted into the designated positioning hole 312, the elastic member 335 can drive the positioning block 334 to move to one side of the positioning hole 312, and when the positioning block 334 is inserted into the positioning hole 312, the elastic member 335 can squeeze the positioning block 334, which can improve the stability of the installation of the positioning block 334 and the positioning hole 312.

[0043] In one embodiment, the movable suction unit 5 includes a fixing frame 51 fixed on the inner wall of the fume hood 1, an adjusting block 52 movably mounted on the fixing frame 51, a bellows 53 fixed on the side of the adjusting block 52 away from the fixing frame 51, an air suction hood 54 fixed on the side of the bellows 53 away from the adjusting block 52, and a connecting pipe 55 fixed on the upper end of the adjusting block 52 and connected to the air suction hood 54. A suction pipe 56 is provided on the outside of the fume hood 1, one side of the suction pipe 56 is connected to the connecting pipe 55, and the other side is connected to the air purification equipment on the fume hood 1.

[0044] This design, see Figure 1-4 ,as well as Figure 8 , slide the adjustment block 52 on the fixing frame 51 so that the air suction hood 54 is located above the chemical experiment reagent, and then rotate the bellows 53 so that the air suction hood 54 is aligned with the reagent. When conducting a chemical experiment, turn on the air purification device, and the air suction hood 54 absorbs the harmful gases generated during the reagent reaction process. The harmful gases are sucked into the air purification device through the connecting pipe 55 and the air suction pipe 56 for purification.

[0045] In one embodiment, an operation opening 101 is provided at the front end of the fume hood 1 , and a cabinet door 11 is adjustably provided at the position of the operation opening 101 of the fume hood 1 .

[0046] This design, see Figure 1-3 The operation port 101 can be convenient for workers to place chemical experimental reagents, and the cabinet door 11 can be convenient to seal the operation port 101, maintain the sealing of the interior of the fume hood 1, and reduce the leakage of harmful gases.

Claims

1. A fume hood with an adjustable table top, comprising a fume hood (1), a fixed table (102) arranged inside the fume hood (1), an operating table (2) adjustably fixed on the fixed table (102), and a fixed air suction hood (4) arranged inside the fume hood (1), characterized in that: Also includes: an adjustment unit (3), arranged on the inner wall of the fume hood (1) and connected to the operating table (2), and used for adjusting the installation height of the operating table (2); A movable air suction unit (5) is adjustably arranged inside the fume hood (1) and is used to directionally absorb harmful gases inside the fume hood (1); The regulating unit (3) comprises: A mounting frame (31) is arranged on a side wall of the fume hood (1); An adjusting member (33) is arranged at the upper end of the operating table (2) and connected to the mounting frame (31), and is used to adjust the mounting height of the operating table (2).

2. The table-adjustable fume hood according to claim 1, characterized in that: A sliding block (32) slidably connected to the mounting frame (31) is provided on one side of the adjusting member (33) close to the mounting frame (31), and a sliding groove (311) for the sliding block (32) to move is provided on the mounting frame (31).

3. The table-adjustable fume hood according to claim 2, characterized in that: The adjusting member (33) comprises a mounting frame (331) fixed to the upper end of the operating table (2) and connected to the slider (32), an adjusting rod (332) passing through the mounting frame (331), an extrusion plate (333) fixed to the side of the adjusting rod (332) close to the slider (32), and a positioning block (334) fixed to the side of the extrusion plate (333) close to the slider (32) and passing through the slider (32), the slider (32) being provided with a through hole (321) for the positioning block (334) to move, and the mounting frame (31) being provided with positioning holes (312) for fixing the positioning block (334) at intervals.

4. The table-adjustable fume hood according to claim 3, characterized in that: The adjusting rod (332) is located between the installation frame (331) and the extrusion plate (333) and is sleeved with an elastic member (335). The adjusting rod (332) is located on a handle (336) on one side outside the installation frame (331).

5. The table-adjustable fume hood according to claim 1, characterized in that: The movable air suction unit (5) comprises a fixing frame (51) fixed on the inner wall of the fume hood (1), an adjusting block (52) movably mounted on the fixing frame (51), a bellows (53) fixed on the side of the adjusting block (52) away from the fixing frame (51), an air suction hood (54) fixed on the side of the bellows (53) away from the adjusting block (52), and a connecting pipe (55) fixed on the upper end of the adjusting block (52) and connected to the air suction hood (54). An air suction pipe (56) is arranged on the outside of the fume hood (1), one side of the air suction pipe (56) is connected to the connecting pipe (55), and the other side is connected to the air purification device on the fume hood (1).

6. The table-adjustable fume hood according to claim 1, characterized in that: An operation opening (101) is provided at the front end of the fume hood (1), and a cabinet door (11) is adjustably provided at the position of the operation opening (101) of the fume hood (1).

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