Miniaturized combined laboratory fume hood

Abstract

The utility model relates to the technical field of experimental equipment, and discloses a miniaturized combined laboratory fume hood which comprises a hood body, a first cavity is formed in the upper side of the front end of the hood body, a working groove is formed in the inner wall of the bottom end of the first cavity, and a discharging assembly is arranged at the top end of the working groove. Second sliding grooves are formed in the front side and the rear side of the inner wall of the bottom end of the first cavity correspondingly, sliding blocks are slidably connected to the inner walls of the second sliding grooves correspondingly, fixing rods are arranged on the inner walls of the sliding blocks, cleaning brushes are arranged on the inner walls of the fixing rods, and first sliding grooves are formed in the positions, corresponding to the upper side and the lower side of the first cavity, of the front end of the cabinet body correspondingly. According to the cleaning device, the sliding block is pushed to slide on the inner wall of the second sliding groove, so that the cleaning brush scrapes waste liquid left on the surface of the cleaning brush on the inner wall of the working groove, the waste liquid is brushed to the liquid discharging hole and flows into the waste liquid box, an operator does not need to wear gloves to take cleaning cloth for cleaning, time and labor are saved, and the operator is prevented from being hurt by irritant liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field especially relates to a miniaturized combined laboratory fume hood. BACKGROUND

[0002] In the laboratory, due to the use of various chemical substances, often cause air pollution in the laboratory, some substances not only smell bad, but also harmful to health, therefore need to use fume hood to carry out experimental research, thereby the harmful gas generated in the experimental research process is discharged through the fume hood, prevent gas diffusion in the laboratory.

[0003] In the experimental process, due to the uncertainty of experimental results, often there will be experimental solvent overflow from the container, overflow solvent will cause pollution in the fume hood, at this time, the operator needs to take a cloth to clean up, if the solvent has certain irritancy, the operator also needs to wear gloves to handle, it is very troublesome and time -consuming, to this, aiming at the technical problem, the present application proposes a miniaturized combined laboratory fume hood. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of miniaturized combined laboratory fume hood to solve the shortcomings in prior art, push slider to make it slide in the second sliding groove inner wall, so that cleaning brush in the working groove inner wall scrapes the surface residual waste liquid brush of it and flows into waste liquid tank at drain hole, without operator wearing gloves to take cloth to clean up, save time and effort, and avoid irritant liquid to cause harm to operator.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of miniaturized combined laboratory fume hood, including cabinet, the first cavity is set in the upper side of the front end of the cabinet, the working groove is set in the bottom end inner wall of the first cavity, the discharge assembly is provided at the top of the working groove, the second sliding groove is set in the front and back sides of the bottom end inner wall of the first cavity, slidingly connected with slider in the second sliding groove inner wall, the fixed rod is arranged in the inner wall of the slider, the cleaning brush is arranged in the inner wall of the fixed rod, the first sliding groove is set in the upper and lower sides of the first cavity in the front end of the cabinet, slidingly connected with first door in the first sliding groove inner wall, the second cavity is set in the lower side of the front end of the cabinet, the second door is hingedly connected with the left and right sides of the second cavity in the front end of the cabinet, the ventilation assembly is provided at the top of the cabinet.

[0007] Further, the discharge assembly includes the drain hole being set in the left and right sides of the top of the working groove, and the filter screen is fixedly connected in the inner wall of the drain hole.

[0008] Further, the fixed rod is attached to the inner wall of the slider, and the size of the cleaning brush is matched with the working groove.

[0009] Further, the first cavity left and right end inner wall is fixedly connected with a placing table, the placing table is used for temporary storage of experimental items.

[0010] Further, the second cavity bottom end inner wall is provided with a waste liquid tank, and the waste liquid tank is used for collecting the waste liquid discharged from the drain hole.

[0011] Further, the ventilation assembly comprises a fixed seat fixedly connected to the left and right sides of the top end of the cabinet body, a fan is arranged in the inner wall of the fixed seat, a shell is fixedly connected to the top end of the cabinet body, and a ventilation pipe is arranged in the top end of the shell.

[0012] Further, two through holes are formed in the top end of the cabinet body corresponding to the lower side of the fan, and the through holes are used to cooperate with the fan to suck gas into the shell.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. In the utility model, the sliding block is pushed to slide in the second sliding groove, so that the cleaning brush scrapes the surface of the working groove to make the residual waste liquid fall into the drain hole and flow into the waste liquid tank, without the need for the operator to wear gloves to take the cleaning cloth for cleaning, saving time and effort, and avoiding harm to the operator caused by irritating liquid.

[0015] 2. In the utility model, when an accident occurs during the experiment, the operator can directly push the two first cabinet doors to quickly close them, so as to isolate the first cavity from the outside world and avoid the diffusion of a large amount of odor gas generated quickly due to the accident into the laboratory, and then the fan is used to treat the gas in the first cavity. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of a small-sized combined laboratory ventilation cabinet is provided for the utility model;

[0017] Figure 2 A sectional view of the cabinet body in the small-sized combined laboratory ventilation cabinet is provided for the utility model; Figure One ;

[0018] Figure 3 A sectional view of the cabinet body in the small-sized combined laboratory ventilation cabinet is provided for the utility model; Figure Two ;

[0019] Figure 4 A structure diagram of the fixing rod in the small-sized combined laboratory ventilation cabinet is provided for the utility model

[0020] LEGEND:

[0021] 1, cabinet; 2, the first chute; 3, the shell; 4, the ventilation pipe; 5, the first box door; 6, the placement table; 7, the first cavity; 8, the working groove; 9, the second cavity; 10, the waste liquid tank; 11, the second box door; 12, the through hole; 13, the fan; 14, the fixed seat; 15, the filter screen; 16, the second chute; 17, the sliding block; 18, the fixed rod; 19, the cleaning brush; 20, the liquid discharge hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Referring to Figures 1-4 , the utility model provides an embodiment: a kind of miniaturized combined laboratory fume hood, including cabinet 1, first cavity 7 is set in the upper side of the front end of cabinet 1, and the inner wall of the left and right two ends of first cavity 7 is fixedly connected with placement table 6, and placement table 6 is used to temporarily store the articles required for experiment, and the inner wall of the bottom end of first cavity 7 is provided with working groove 8, and the top of working groove 8 is provided with discharge assembly, and discharge assembly includes the liquid discharge hole 20 that is set in the left and right sides of the top of working groove 8, and the inner wall of liquid discharge hole 20 is fixedly connected with filter screen 15, and the inner wall of the left and right sides of the bottom end of first cavity 7 is provided with second chute 16, and the inner wall of second chute 16 is slidably connected with sliding block 17, and the inner wall of sliding block 17 is provided with fixed rod 18, and the inner wall of fixed rod 18 is provided with cleaning brush 19, and the outer wall of fixed rod 18 is attached to the inner wall of sliding block 17, and cleaning brush 19 is compatible with working groove 8 in size;

[0024] Specifically, by placing experimental container in working groove 8 to carry out experiment, even if reaction liquid overflows from container in case of accident, it will only fall on the inner wall of working groove 8, without causing pollution to first box door 5 or the inner wall of first cavity 7, and reaction liquid in working groove 8 can be discharged to waste liquid tank 10 for collection through liquid discharge hole 20, and surface residual liquid can be scraped and cleaned by cleaning brush 19, cleaning brush 9 is clamped in fixed rod 18, and fixed rod 18 is in the inner wall of sliding block 17, so that when replacing cleaning brush 9, fixed rod 18 can be directly taken out of sliding block 17, and cleaning brush 9 can be pulled out, which is very convenient, and filter screen 15 fixed in the inner wall of liquid discharge hole 20 can ensure that liquid flows into waste liquid tank 10 normally, and experimental equipment is blocked.

[0025] The first sliding groove 2 is arranged on the upper and lower sides of the first cavity 7 corresponding to the front end of the cabinet body 1, and the first cabinet door 5 is slidably connected to the inner wall of the first sliding groove 2; the second cavity 9 is arranged on the lower side of the front end of the cabinet body 1, and the waste liquid tank 10 is arranged on the inner wall of the bottom end of the second cavity 9; the waste liquid tank 10 is used to collect the waste liquid discharged from the drain hole 20; the second cabinet door 11 is hingedly connected to the left and right sides of the second cavity 9 corresponding to the front end of the cabinet body 1; the ventilation assembly is arranged on the top end of the cabinet body 1 and comprises the fixed seat 14 fixedly connected to the left and right sides of the top end of the cabinet body 1, and the fan 13 arranged on the inner wall of the fixed seat 14; the shell 3 is fixedly connected to the top end of the cabinet body 1, the ventilation pipe 4 is arranged on the top end of the shell 3, and the two through holes 12 are arranged on the top end of the cabinet body 1 corresponding to the lower side of the fan 13; the through holes 12 are used to cooperate with the fan 13 to suck the gas into the shell 3.

[0026] Specifically, when an accident occurs in the experiment, the operator can directly push the two first cabinet doors 5 to quickly close them, so as to isolate the first cavity 7 from the outside world, thereby avoiding the diffusion of a large amount of odor gas generated rapidly due to the accident to the inside of the laboratory; the fan 13 can suck the gas accumulated in the first cavity into the shell 3 through the through holes 12, and then the gas is discharged through the ventilation pipe 4 to clean the gas in the first cavity 7.

[0027] Working principle: in use, the operator first pulls the first cabinet door 5 to slide and open the first cabinet door 5 along the inner wall of the first sliding groove 2, at this time, the operator can place the experimental supporting articles on the placement table 6, then places the experimental container in the working groove 8 and starts the fan 13 to conduct the experiment, if an accident occurs during the experiment, causing the experimental solvent to overflow from the container, the operator can directly push the two first cabinet doors 5 to close them, quickly isolating the first cavity 7 from the outside world, the fan 13 sucks the gas in the cabinet body 1 into the shell 3 through the through holes 12, and then the gas is discharged to the outside through the ventilation pipe 4, preventing the harmful gas in the cabinet body 1 from escaping when the first cabinet door 5 is opened later, thereby polluting the laboratory environment, at the same time, the overflowed solvent is automatically discharged from the working groove 8 into the waste liquid tank 10, after a period of time, the first cabinet door is opened again, the sliding block 17 is pushed to slide in the inner wall of the second sliding groove 16, the fixed rod 18 is driven to move, so that the cleaning brush 19 scrapes the residual waste liquid on the inner wall of the working groove 8 and falls into the waste liquid tank 10 through the drain hole 20, when the second cabinet door 11 is opened later, the waste liquid in the waste liquid tank 10 can be uniformly treated, without the need for the operator to manually take a cloth to clean, which saves time and effort; after the cleaning brush 19 is used for a period of time, the fixed rod 18 can be directly pulled out from the inside of the sliding block 17, and then the cleaning brush is pulled out from the inside of the fixed rod 18 for replacement, after the replacement is completed, the fixed rod 18 is inserted into the inside of the sliding block 17.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A compact combined laboratory fume hood comprising a cabinet (1), characterized in that: The first cavity (7) is arranged on the upper side of the front end of the cabinet body (1), the working groove (8) is arranged on the inner wall of the bottom end of the first cavity (7), the discharge assembly is arranged on the top end of the working groove (8), the second sliding groove (16) is arranged on the inner wall of the bottom end of the first cavity (7) on the left and right sides, the sliding block (17) is slidably connected to the inner wall of the second sliding groove (16), the fixed rod (18) is arranged on the inner wall of the sliding block (17), the cleaning brush (19) is arranged on the inner wall of the fixed rod (18), the first sliding groove (2) is arranged on the inner wall of the cabinet body (1) on the left and right sides of the first cavity (7), the first cabinet door (5) is slidably connected to the inner wall of the first sliding groove (2), the second cavity (9) is arranged on the lower side of the front end of the cabinet body (1), the second cabinet door (11) is hingedly connected to the inner wall of the cabinet body (1) on the left and right sides of the second cavity (9), and the ventilation assembly is arranged on the top end of the cabinet body (1).

2. A compact combined fume hood laboratory according to claim 1, characterized in that: The discharge assembly comprises the liquid discharge holes (20) arranged on the left and right sides of the top end of the working groove (8), and the filter screens (15) are fixedly connected to the inner walls of the liquid discharge holes (20).

3. The compact combined fume hood of claim 1, wherein: The fixed rod (18) is attached to the inner wall of the sliding block (17), and the cleaning brush (19) is matched with the working groove (8) in size.

4. The compact combined fume hood of claim 1, wherein: The first cavity (7) is arranged on the inner wall of the cabinet body (1) on the left and right sides, and the placing table (6) is arranged on the inner wall of the cabinet body (1) on the left and right sides.

5. The compact combined fume hood laboratory according to claim 1, wherein: The second cavity (9) is arranged on the inner wall of the cabinet body (1) on the left and right sides, and the waste liquid tank (10) is arranged on the inner wall of the cabinet body (1) on the left and right sides.

6. The compact combined fume hood laboratory of claim 1, wherein: The ventilation assembly comprises the fixed seats (14) fixedly connected to the inner walls of the cabinet body (1) on the left and right sides, the fans (13) are arranged in the fixed seats (14), the cabinet body (1) is fixedly connected to the housing (3), and the ventilation pipe (4) is arranged on the top end of the housing (3).

7. A compact combined fume hood laboratory according to claim 6, characterized in that: The cabinet body (1) is arranged on the inner wall of the cabinet body (1) on the left and right sides, and the waste liquid tank (10) is arranged on the inner wall of the cabinet body (1) on the left and right sides.

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