Ventilation cabinet with waste liquid treatment function

Abstract

The fume hood with the waste liquid treatment function comprises a storage plate, the storage plate is installed on the inner side of a storage groove, the storage groove is formed in a base body, and the height of the storage plate can be adjusted through rotation of a supporting rod; and the waste liquid neutralization box is installed at the upper end of the storage plate, a filter screen is installed on the inner side of the waste liquid neutralization box, a sealing cushion block is fixedly installed at the upper end of the waste liquid neutralization box, and the sealing cushion block is attached to the bottom of the liquid outlet. According to the fume hood with the waste liquid treatment function, when waste liquid on the inner side of the fume hood needs to be treated, firstly, a corresponding acid-base neutralization reagent is placed in the waste liquid neutralization box, then clamping plates at the two ends of a storage plate are manually pulled to be separated towards the two sides, the corresponding waste liquid neutralization box is placed between the clamping plates at the two ends after separation, and then the clamping plates are loosened; the clamping plates are reset through the elastic force of the telescopic springs, so that the two sides of the waste liquid neutralization box are clamped, and the waste liquid neutralization box is fixed to the upper end of the storage plate.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a fume hood with waste liquid treatment function. Background Art

[0002] Fume hoods, also known as cabinet exhaust hoods, are common equipment in laboratories, industrial production and some special working environments, and are mainly used in chemical experimental processing.

[0003] A fume hood frame and fume hood with application number CN202021166543.8. It includes a first column, a second column, a third column and a fourth column. The upper parts of the first column and the second column are connected by a first beam; the lower parts of the first column and the second column are connected by a second beam; a first auxiliary beam is provided at the lower end of the second beam, and the two ends WP of the first auxiliary beam are respectively fixed on the first column and the second column; the upper parts of the third column and the fourth column are connected by a third beam; the lower parts of the third column and the fourth column are connected by a fourth beam. The upper parts of the first column and the third column are connected by a first longitudinal beam, and the lower parts of the first column and the third column are connected by a second longitudinal beam; the upper parts of the second column and the fourth column are connected by a third longitudinal beam, and the lower parts of the second column and the fourth column are connected by a fourth longitudinal beam. The size of the fume hood is more free, the visual range and the operable space are larger, and more customer requirements can be met.

[0004] The fume hood frame is composed of four columns, eight cross beams and longitudinal beams and four auxiliary beams. The four columns are connected to four longer cross beams in pairs and the width is determined by four shorter longitudinal beams. Therefore, the size of the fume hood is more flexible, the field of vision and the operating space are larger, and more customer requirements can be met. However, the device does not have a structure for treating waste liquid. When using the fume hood for chemical experiments, a large amount of harmful liquid will be generated inside. If these liquids are not treated, they are very likely to pollute the surrounding environment.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original fume hood structure. Utility Model Content

[0006] The purpose of the utility model is to provide a fume hood with waste liquid treatment, so as to solve the problem that the device proposed in the above background technology is not provided with a structure for treating waste liquid, and a large amount of harmful liquid is generated inside the fume hood when chemical experiments are carried out. If these liquids are not treated, they are very likely to cause pollution to the surrounding environment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fume hood with waste liquid treatment, comprising a storage plate, the storage plate is installed inside a storage tank, and the storage tank is opened in a base, and the storage plate can be adjusted in height by rotating a support rod;

[0008] A waste liquid neutralization box is installed on the upper end of the storage plate, and a filter screen is installed on the inner side of the waste liquid neutralization box. A sealing gasket is fixedly installed on the upper end of the waste liquid neutralization box, and the sealing gasket is fitted with the bottom of the drain port. Clamps are symmetrically arranged on the left and right ends of the waste liquid neutralization box.

[0009] Preferably, a universal wheel is fixedly mounted on the bottom of the base, and a cabinet is fixedly mounted on the upper end of the base, an air cavity is opened inside the cabinet, a fan is fixedly mounted on the upper end of the cabinet, and a glass baffle that slides up and down is mounted on the outer side of the cabinet.

[0010] Preferably, a drain port is provided inside the base body, and the drain port and the storage tank are vertically connected and a cabinet door is rotatably connected to the outside of the storage tank; this structure can transport waste liquid to the inside of the waste liquid neutralization box through the drain port.

[0011] Preferably, a fixing plate is fixedly installed on the inner side of the storage slot, and a servo motor is fixedly installed on the outer side of the fixing plate, a counter-rotating threaded rod is fixedly installed on the output end of the servo motor, and threaded connectors are threadedly connected at the left and right ends of the counter-rotating threaded rod, a support plate is fixedly installed on the upper end of the threaded connector, and two groups of support plates are symmetrically arranged about the midpoint of the counter-rotating threaded rod; this structure can drive the threaded connectors threaded at both ends to move toward or in the opposite direction through the rotation of the counter-rotating threaded rod.

[0012] Preferably, a guide rod is fixedly installed on the inner side of the fixed plate, and a guide block is nested on the outer side of the guide rod, and the guide block is fixedly installed on the bottom of the support plate; this structure can limit the angle of the support plate by sliding the guide block outside the guide rod.

[0013] Preferably, the upper end of the support plate is rotatably connected to a support rod, and the top end of the support rod is rotatably connected to a storage plate, and two groups of support rods are symmetrically arranged about the midpoint of the storage plate; this structure can adjust the height of the upper storage plate by rotating the support rod.

[0014] Preferably, a fixed block is fixedly installed on the upper end of the storage plate, and a telescopic spring is fixedly installed on the outer side of the fixed block, the tail end of the telescopic spring is fixedly connected to a sliding rod, and the sliding rod passes through the inner side of the fixed block, and a clamping plate is fixedly installed on the tail end of the sliding rod; this structure can clamp and fix the waste liquid neutralization box through the relative movement of the clamping plates.

[0015] Compared with the prior art, the utility model has the beneficial effect that the fume hood with waste liquid treatment is provided with:

[0016] 1. Waste liquid treatment structure. When the waste liquid inside the fume hood needs to be treated, the corresponding acid-base neutralization reagent is first placed in the waste liquid neutralization box, and then the clamps at both ends of the storage plate are manually pulled to separate them to both sides. After separation, the corresponding waste liquid neutralization box is placed between the clamps at both ends, and then the clamps are loosened. The clamps are reset by the elastic force of the telescopic spring, thereby clamping the two sides of the waste liquid neutralization box and fixing it on the upper end of the storage plate;

[0017] Furthermore, after the waste liquid neutralization box is fixed, the servo motor is operated, and the output end of the servo motor drives the counter-rotating threaded rod to rotate. The rotation of the counter-rotating threaded rod drives the threaded connectors at both ends to move toward each other, thereby driving the upper support plate to move together. As the support plates at both ends move toward each other, the support rods connected at the upper end are driven to rotate. The rotation of the support rods on the left and right sides will lift up the upper storage plate, so that the waste liquid neutralization box on the upper end of the storage plate fits the lower end of the discharge port.

[0018] Furthermore, a sealing gasket is installed on the outside of the waste liquid neutralization box, and the sealing gasket can improve the sealing performance of the connection between the waste liquid neutralization box and the drain port. When waste liquid is generated inside the fume hood, the generated waste liquid enters the inside of the waste liquid neutralization box through the drain port. When the waste liquid enters the inside of the waste liquid neutralization box, the filter screen inside the waste liquid neutralization box will intercept and filter the particulate impurities in the waste liquid, and the acid and alkali reagent inside the waste liquid neutralization box will neutralize the waste liquid inside the waste liquid neutralization box, thereby achieving the effect of waste liquid treatment.

[0019] 2. Waste liquid treatment structure. After the acid-base neutralization of the waste liquid is completed, the servo motor is operated in the reverse direction to drive the counter-rotating threaded rod to rotate in the reverse direction. The reverse rotation of the counter-rotating threaded rod will drive the support plates at both ends to move in the reverse direction. The reverse movement of the support plates will drive the placement plate to move downward, so that the waste liquid neutralization box on the upper end of the placement plate moves downward, making it easier for the staff to take it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the utility model after the cabinet door is rotated;

[0022] Figure 3 This is a schematic diagram of the overall upward structure of the cabinet door of the utility model after rotation;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the cabinet of the utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the storage plate of the utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the waste liquid neutralization box of the utility model;

[0026] Figure 7 This is a schematic diagram of the decomposition of the waste liquid neutralization box of the utility model.

[0027] In the figure: 1. base; 2. universal wheel; 3. cabinet; 4. air chamber; 5. fan; 6. drain port; 7. glass baffle; 8. storage slot; 9. cabinet door; 10. fixing plate; 11. servo motor; 12. different-direction threaded rod; 13. threaded connector; 14. support plate; 16. guide rod; 17. guide block; 18. support rod; 19. storage plate; 20. fixing block; 21. telescopic spring; 22. sliding rod; 23. clamping plate; 24. waste liquid neutralization box; 25. sealing gasket; 26. filter screen. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-Figure 7 The utility model provides a technical solution: a fume hood with waste liquid treatment, including: Embodiment 1:

[0030] like Figure 1-Figure 7 The technical solution shown in the figure, the present invention provides a technical solution: a fume hood with waste liquid treatment, discloses:

[0031] A storage plate 19, which is installed inside the storage slot 8, and the storage slot 8 is provided in the base 1, and the storage plate 19 can be adjusted in height by rotating the support rod 18;

[0032] The waste liquid neutralization box 24 is installed on the upper end of the storage plate 19, and a filter screen 26 is installed inside the waste liquid neutralization box 24. A sealing gasket 25 is fixedly installed on the upper end of the waste liquid neutralization box 24, and the sealing gasket 25 fits the bottom of the drain port 6. Clamps 23 are symmetrically arranged at the left and right ends of the waste liquid neutralization box 24;

[0033] A universal wheel 2 is fixedly installed at the bottom of the base 1, and a cabinet 3 is fixedly installed at the upper end of the base 1, an air cavity 4 is opened inside the cabinet 3, and a fan 5 is fixedly installed on the upper end of the cabinet 3, and a glass baffle 7 that slides up and down is installed on the outer side of the cabinet 3; a drain port 6 is opened on the inner side of the base 1, and the drain port 6 and the storage tank 8 are a vertical through structure, and a cabinet door 9 is rotatably connected to the outer side of the storage tank 8; a fixed plate 10 is fixedly installed on the inner side of the storage tank 8, and a servo motor 11 is fixedly installed on the outer side of the fixed plate 10, and a different direction threaded rod 12 is fixedly installed at the output end of the servo motor 11, and the left and right ends of the different direction threaded rod 12 are threadedly connected with a threaded connector 13, and a support plate 14 is fixedly installed on the upper end of the threaded connector 13, and the support plate 14 is symmetrically arranged in two groups about the midpoint of the different-direction threaded rod 12; a guide rod 16 is fixedly installed on the inner side of the fixed plate 10, and a guide block 17 is nested on the outer side of the guide rod 16, and the guide block 17 is fixedly installed at the bottom of the support plate 14; a support rod 18 is rotatably connected to the upper end of the support plate 14, and a storage plate 19 is rotatably connected to the top of the support rod 18, and the support rod 18 is symmetrically arranged in two groups about the midpoint of the storage plate 19; a fixed block 20 is fixedly installed on the upper end of the storage plate 19, and a telescopic spring 21 is fixedly installed on the outer side of the fixed block 20, and a sliding rod 22 is fixedly connected to the tail end of the telescopic spring 21, and the sliding rod 22 passes through the inner side of the fixed block 20, and a clamping plate 23 is fixedly installed at the tail end of the sliding rod 22;

[0034] When the waste liquid inside the fume hood needs to be processed, the corresponding acid-base neutralizing reagent is first placed in the waste liquid neutralizing box 24, and then the clamps 23 at both ends of the storage plate 19 are manually pulled to separate them to both sides. After separation, the corresponding waste liquid neutralizing box 24 is placed between the clamps 23 at both ends, and then the clamps 23 are released. The clamps 23 are reset by the elastic force of the telescopic spring 21, thereby clamping the two sides of the waste liquid neutralizing box 24 to fix it on the upper end of the storage plate 19. When the waste liquid neutralizing box 24 is fixed, the servo motor 11 is operated, and the output end of the servo motor 11 drives the counter-rotating threaded rod 12 to rotate. The rotation of the counter-rotating threaded rod 12 will drive the threaded connectors 13 threadedly connected at both ends to move toward each other, thereby driving the upper support plate 14 to move together. The support rod 18 on the left and right sides rotates to lift the upper storage plate 19, so that the waste liquid neutralization box 24 on the upper end of the storage plate 19 fits the lower end of the drain port 6, and a sealing gasket 25 is installed on the outer side of the waste liquid neutralization box 24. The sealing gasket 25 can improve the connection sealing between the waste liquid neutralization box 24 and the drain port 6. When waste liquid is generated inside the fume hood, the generated waste liquid enters the inner side of the waste liquid neutralization box 24 through the drain port 6. When the waste liquid enters the inner side of the waste liquid neutralization box 24, the filter screen 26 inside the waste liquid neutralization box 24 will intercept and filter the particulate impurities in the waste liquid, and the acid and alkali reagent inside the waste liquid neutralization box 24 will neutralize the waste liquid inside the waste liquid neutralization box 24, thereby achieving the effect of waste liquid treatment.

[0035] Embodiment 2: Figure 1-Figure 3 , Figure 5 The technical solution shown in the invention provides a technical solution: a fume hood with waste liquid treatment, which discloses: after the acid-base neutralization of the waste liquid is completed, the servo motor 11 is reversely operated to drive the counter-rotating threaded rod 12 to rotate in the opposite direction. The reverse rotation of the counter-rotating threaded rod 12 will drive the support plates 14 at both ends to move in the opposite direction. The reverse movement of the support plates 14 will drive the placement plate 19 to move downward, so that the waste liquid neutralization box 24 at the upper end of the placement plate 19 moves downward, which is convenient for the staff to take.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fume hood with waste liquid treatment, characterized in that: include: a storage plate (19), wherein the storage plate (19) is installed inside the storage slot (8), the storage slot (8) is provided in the base body (1), and the storage plate (19) can be adjusted in height by rotating the support rod (18); A waste liquid neutralization box (24), the waste liquid neutralization box (24) being mounted on the upper end of the storage plate (19), and a filter screen (26) being mounted on the inner side of the waste liquid neutralization box (24), a sealing gasket (25) being fixedly mounted on the upper end of the waste liquid neutralization box (24), and the sealing gasket (25) being in contact with the bottom of the liquid discharge port (6), and clamping plates (23) being symmetrically arranged at the left and right ends of the waste liquid neutralization box (24).

2. A fume hood with waste liquid treatment according to claim 1, characterized in that: A universal wheel (2) is fixedly mounted on the bottom of the base (1), and a cabinet (3) is fixedly mounted on the upper end of the base (1); an air cavity (4) is provided on the inner side of the cabinet (3), and a fan (5) is fixedly mounted on the upper end of the cabinet (3); and a glass baffle (7) that slides up and down is mounted on the outer side of the cabinet (3).

3. A fume hood with waste liquid treatment according to claim 1, characterized in that: The base body (1) is provided with a liquid discharge port (6) on the inner side, and the liquid discharge port (6) and the storage tank (8) are vertically connected structures, and a cabinet door (9) is rotatably connected to the outer side of the storage tank (8).

4. A fume hood with waste liquid treatment according to claim 1, characterized in that: A fixing plate (10) is fixedly mounted on the inner side of the storage slot (8), and a servo motor (11) is fixedly mounted on the outer side of the fixing plate (10); a different direction threaded rod (12) is fixedly mounted on the output end of the servo motor (11), and threaded connectors (13) are threadedly connected to the left and right ends of the different direction threaded rod (12); a support plate (14) is fixedly mounted on the upper end of the threaded connector (13), and two groups of support plates (14) are symmetrically arranged with respect to the midpoint of the different direction threaded rod (12).

5. A fume hood with waste liquid treatment according to claim 4, characterized in that: A guide rod (16) is fixedly mounted on the inner side of the fixed plate (10), a guide block (17) is nested on the outer side of the guide rod (16), and the guide block (17) is fixedly mounted on the bottom of the support plate (14).

6. A fume hood with waste liquid treatment according to claim 5, characterized in that: The upper end of the support plate (14) is rotatably connected to a support rod (18), and the top end of the support rod (18) is rotatably connected to a storage plate (19), and two groups of support rods (18) are symmetrically arranged about the midpoint of the storage plate (19).

7. A fume hood with waste liquid treatment according to claim 6, characterized in that: A fixed block (20) is fixedly mounted on the upper end of the storage plate (19), and a telescopic spring (21) is fixedly mounted on the outer side of the fixed block (20); a sliding rod (22) is fixedly connected to the rear end of the telescopic spring (21), and the sliding rod (22) passes through the inner side of the fixed block (20), and a clamping plate (23) is fixedly mounted on the rear end of the sliding rod (22).

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